From a09851af122722b8ab3363c36c19fdf96d43addd Mon Sep 17 00:00:00 2001 From: Allen Webster Date: Tue, 31 May 2016 14:32:58 -0400 Subject: [PATCH] switched to condition-variable based cancelation --- 4ed_file_view.cpp | 11266 ++++++++++++++++++++++---------------------- 4ed_system.h | 6 +- win32_4ed.cpp | 116 +- 3 files changed, 5754 insertions(+), 5634 deletions(-) diff --git a/4ed_file_view.cpp b/4ed_file_view.cpp index c8d98518..7fcf241c 100644 --- a/4ed_file_view.cpp +++ b/4ed_file_view.cpp @@ -1,5618 +1,5648 @@ -/* -* Mr. 4th Dimention - Allen Webster -* -* 19.08.2015 -* -* File editing view for 4coder -* -*/ - -// TOP - -internal i32 -get_or_add_map_index(Models *models, i32 mapid){ - i32 result; - i32 user_map_count = models->user_map_count; - i32 *map_id_table = models->map_id_table; - for (result = 0; result < user_map_count; ++result){ - if (map_id_table[result] == mapid) break; - if (map_id_table[result] == -1){ - map_id_table[result] = mapid; - break; - } - } - return result; -} - -internal i32 -get_map_index(Models *models, i32 mapid){ - i32 result; - i32 user_map_count = models->user_map_count; - i32 *map_id_table = models->map_id_table; - for (result = 0; result < user_map_count; ++result){ - if (map_id_table[result] == mapid) break; - if (map_id_table[result] == 0){ - result = user_map_count; - break; - } - } - return result; -} - -internal Command_Map* -get_map_base(Models *models, i32 mapid, b32 add){ - Command_Map *map = 0; - if (mapid < mapid_global){ - if (add){ - mapid = get_or_add_map_index(models, mapid); - } - else{ - mapid = get_map_index(models, mapid); - } - if (mapid < models->user_map_count){ - map = models->user_maps + mapid; - } - } - else if (mapid == mapid_global) map = &models->map_top; - else if (mapid == mapid_file) map = &models->map_file; - return(map); -} - -internal Command_Map* -get_or_add_map(Models *models, i32 mapid){ - Command_Map *map = get_map_base(models, mapid, 1); - return(map); -} - -internal Command_Map* -get_map(Models *models, i32 mapid){ - Command_Map *map = get_map_base(models, mapid, 0); - return(map); -} - -internal void -map_set_count(Models *models, i32 mapid, i32 count){ - Command_Map *map = get_or_add_map(models, mapid); - Assert(map->commands == 0); - map->count = count; - if (map->max < count){ - map->max = count; - } -} - -internal i32 -map_get_count(Models *models, i32 mapid){ - Command_Map *map = get_or_add_map(models, mapid); - i32 count = map->count; - Assert(map->commands == 0); - return(count); -} - -internal i32 -map_get_max_count(Models *models, i32 mapid){ - Command_Map *map = get_or_add_map(models, mapid); - i32 count = map->max; - return(count); -} - -enum Interactive_Action{ - IAct_Open, - IAct_Save_As, - IAct_New, - IAct_Switch, - IAct_Kill, - IAct_Sure_To_Kill, - IAct_Sure_To_Close -}; - -enum Interactive_Interaction{ - IInt_Sys_File_List, - IInt_Live_File_List, - IInt_Sure_To_Kill, - IInt_Sure_To_Close -}; - -struct View_Mode{ - i32 rewrite; -}; -inline View_Mode -view_mode_zero(){ - View_Mode mode={0}; - return(mode); -} - -enum View_Widget_Type{ - FWIDG_NONE, - FWIDG_TIMELINES, - // never below this - FWIDG_TYPE_COUNT -}; - -struct View_Widget{ - View_Widget_Type type; - i32 height_; - struct{ - b32 undo_line; - b32 history_line; - } timeline; -}; - -enum View_UI{ - VUI_None, - VUI_Theme, - VUI_Interactive, - VUI_Menu, - VUI_Config, -}; - -enum Color_View_Mode{ - CV_Mode_Library, - CV_Mode_Font, - CV_Mode_Adjusting -}; - -struct File_Viewing_Data{ - Editing_File *file; - - Full_Cursor temp_highlight; - i32 temp_highlight_end_pos; - b32 show_temp_highlight; - - b32 unwrapped_lines; - b32 show_whitespace; - b32 file_locked; - - i32 line_count, line_max; - f32 *line_wrap_y; -}; -inline File_Viewing_Data -file_viewing_data_zero(){ - File_Viewing_Data data={0}; - return(data); -} - -struct Recent_File_Data{ - u64 unique_buffer_id; - GUI_Scroll_Vars scroll; - - Full_Cursor cursor; - i32 mark; - f32 preferred_x; - i32 scroll_i; -}; -inline Recent_File_Data -recent_file_data_zero(){ - Recent_File_Data data = {0}; - return(data); -} - -struct Scroll_Context{ - Editing_File *file; - GUI_id scroll; - View_UI mode; -}; -inline b32 -context_eq(Scroll_Context a, Scroll_Context b){ - b32 result = 0; - if (gui_id_eq(a.scroll, b.scroll)){ - if (a.file == b.file){ - if (a.mode == b.mode){ - result = 1; - } - } - } - return(result); -} - -struct View_Persistent{ - i32 id; - - View_Routine_Function *view_routine; - Coroutine *coroutine; - Event_Message message_passing_slot; - - // TODO(allen): eliminate this models pointer: explicitly parameterize. - Models *models; -}; - -struct View{ - View_Persistent persistent; - - View *next, *prev; - Panel *panel; - b32 in_use; - Command_Map *map; - - File_Viewing_Data file_data; - i32 prev_cursor_pos; - Scroll_Context prev_context; - - i32_Rect file_region_prev; - i32_Rect file_region; - - i32_Rect scroll_region; - Recent_File_Data recent[16]; - - GUI_Scroll_Vars *current_scroll; - - View_UI showing_ui; - GUI_Target gui_target; - void *gui_mem; - GUI_Scroll_Vars gui_scroll; - i32 list_i; - - b32 hide_scrollbar; - - // interactive stuff - Interactive_Interaction interaction; - Interactive_Action action; - - char dest_[256]; - String dest; - - // theme stuff - View *hot_file_view; - u32 *palette; - i32 palette_size; - Color_View_Mode color_mode; - Super_Color color; - b32 p4c_only; - Style_Library inspecting_styles; - b8 import_export_check[64]; - i32 import_file_id; - i32 current_color_editing; - i32 color_cursor; - - i32 font_advance; - i32 font_height; - - View_Mode mode, next_mode; - View_Widget widget; - Query_Set query_set; - i32 scrub_max; - - b32 reinit_scrolling; -}; -inline void* -get_view_body(View *view){ - char *result = (char*)view; - result += sizeof(View_Persistent); - return(result); -} -inline i32 -get_view_size(){ - return(sizeof(View) - sizeof(View_Persistent)); -} - -struct View_And_ID{ - View *view; - i32 id; -}; - -#define LockLevel_Open 0 -#define LockLevel_NoWrite 1 -#define LockLevel_NoUpdate 2 - -inline i32 -view_lock_level(View *view){ - i32 result = LockLevel_Open; - File_Viewing_Data *data = &view->file_data; - if (view->showing_ui != VUI_None) result = LockLevel_NoUpdate; - else if (data->file_locked || (data->file && data->file->settings.read_only)) result = LockLevel_NoWrite; - return(result); -} - -inline f32 -view_file_width(View *view){ - i32_Rect file_rect = view->file_region; - f32 result = (f32)(file_rect.x1 - file_rect.x0); - return (result); -} - -inline f32 -view_file_height(View *view){ - i32_Rect file_rect = view->file_region; - f32 result = (f32)(file_rect.y1 - file_rect.y0); - return (result); -} - -struct View_Iter{ - View *view; - - Editing_File *file; - View *skip; - Panel *used_panels; - Panel *panel; -}; - -internal View_Iter -file_view_iter_next(View_Iter iter){ - View *view; - - for (iter.panel = iter.panel->next; iter.panel != iter.used_panels; iter.panel = iter.panel->next){ - view = iter.panel->view; - if (view != iter.skip && (view->file_data.file == iter.file || iter.file == 0)){ - iter.view = view; - break; - } - } - - return(iter); -} - -internal View_Iter -file_view_iter_init(Editing_Layout *layout, Editing_File *file, View *skip){ - View_Iter result; - result.used_panels = &layout->used_sentinel; - result.panel = result.used_panels; - result.file = file; - result.skip = skip; - - result = file_view_iter_next(result); - - return(result); -} - -internal b32 -file_view_iter_good(View_Iter iter){ - b32 result = (iter.panel != iter.used_panels); - return(result); -} - -inline b32 -starts_new_line(u8 character){ - return (character == '\n'); -} - -inline void -file_init_strings(Editing_File *file){ - file->name.source_path = make_fixed_width_string(file->name.source_path_); - file->name.live_name = make_fixed_width_string(file->name.live_name_); - file->name.extension = make_fixed_width_string(file->name.extension_); -} - -inline void -file_set_name(Working_Set *working_set, Editing_File *file, char *filename){ - String f, ext; - - Assert(file->name.live_name.str != 0); - - f = make_string_slowly(filename); - copy_checked(&file->name.source_path, f); - - file->name.live_name.size = 0; - get_front_of_directory(&file->name.live_name, f); - - if (file->name.source_path.size == file->name.live_name.size){ - file->name.extension.size = 0; - } - else{ - ext = file_extension(f); - copy(&file->name.extension, ext); - } - - { - File_Node *node, *used_nodes; - Editing_File *file_ptr; - i32 file_x, original_len; - b32 hit_conflict; - - used_nodes = &working_set->used_sentinel; - original_len = file->name.live_name.size; - hit_conflict = 1; - file_x = 0; - while (hit_conflict){ - hit_conflict = 0; - for (dll_items(node, used_nodes)){ - file_ptr = (Editing_File*)node; - if (file_ptr != file && file_is_ready(file_ptr)){ - if (match(file->name.live_name, file_ptr->name.live_name)){ - ++file_x; - hit_conflict = 1; - break; - } - } - } - - if (hit_conflict){ - file->name.live_name.size = original_len; - append(&file->name.live_name, " <"); - append_int_to_str(file_x, &file->name.live_name); - append(&file->name.live_name, ">"); - } - } - } -} - -inline void -file_synchronize_times(System_Functions *system, Editing_File *file, char *filename){ - u64 stamp = system->file_time_stamp(filename); - if (stamp > 0){ - file->state.last_4ed_write_time = stamp; - file->state.last_4ed_edit_time = stamp; - file->state.last_sys_write_time = stamp; - } - file->state.sync = buffer_get_sync(file); -} - -internal b32 -file_save(System_Functions *system, Mem_Options *mem, Editing_File *file, char *filename){ - b32 result = 0; - - i32 max, size; - b32 dos_write_mode = file->settings.dos_write_mode; - char *data; - Buffer_Type *buffer = &file->state.buffer; - - if (dos_write_mode){ - max = buffer_size(buffer) + buffer->line_count + 1; - } - else{ - max = buffer_size(buffer); - } - - Temp_Memory temp = begin_temp_memory(&mem->part); - char empty = 0; - if (max == 0){ - data = ∅ - } - else{ - data = (char*)push_array(&mem->part, char, max); - } - Assert(data); - - if (dos_write_mode){ - size = buffer_convert_out(buffer, data, max); - } - else{ - size = max; - buffer_stringify(buffer, 0, size, data); - } - - result = system->file_save(filename, data, size); - - file_synchronize_times(system, file, filename); - - end_temp_memory(temp); - - return(result); -} - -inline b32 -file_save_and_set_names(System_Functions *system, Mem_Options *mem, - Working_Set *working_set, Editing_File *file, - char *filename){ - b32 result = 0; - result = file_save(system, mem, file, filename); - if (result){ - file_set_name(working_set, file, filename); - } - return result; -} - -enum File_Bubble_Type{ - BUBBLE_BUFFER = 1, - BUBBLE_STARTS, - BUBBLE_WIDTHS, - BUBBLE_WRAPS, - BUBBLE_TOKENS, - BUBBLE_UNDO_STRING, - BUBBLE_UNDO, - BUBBLE_UNDO_CHILDREN, - // - FILE_BUBBLE_TYPE_END, -}; - -#define GROW_FAILED 0 -#define GROW_NOT_NEEDED 1 -#define GROW_SUCCESS 2 - -internal i32 -file_grow_starts_widths_as_needed(General_Memory *general, Buffer_Type *buffer, i32 additional_lines){ - b32 result = GROW_NOT_NEEDED; - i32 max = buffer->line_max; - i32 count = buffer->line_count; - i32 target_lines = count + additional_lines; - Assert(max == buffer->widths_max); - - if (target_lines > max || max == 0){ - max = LargeRoundUp(target_lines + max, Kbytes(1)); - - f32 *new_widths = (f32*)general_memory_reallocate( - general, buffer->line_widths, - sizeof(f32)*count, sizeof(f32)*max, BUBBLE_WIDTHS); - - i32 *new_lines = (i32*)general_memory_reallocate( - general, buffer->line_starts, - sizeof(i32)*count, sizeof(i32)*max, BUBBLE_STARTS); - - if (new_lines){ - buffer->line_starts = new_lines; - buffer->line_max = max; - } - if (new_widths){ - buffer->line_widths = new_widths; - buffer->widths_max = max; - } - if (new_lines && new_widths){ - result = GROW_SUCCESS; - } - else{ - result = GROW_FAILED; - } - } - - return(result); -} - -internal void -file_measure_starts_widths(System_Functions *system, General_Memory *general, - Buffer_Type *buffer, float *advance_data){ - if (!buffer->line_starts){ - i32 max = buffer->line_max = Kbytes(1); - buffer->line_starts = (i32*)general_memory_allocate(general, max*sizeof(i32), BUBBLE_STARTS); - TentativeAssert(buffer->line_starts); - // TODO(allen): when unable to allocate? - } - if (!buffer->line_widths){ - i32 max = buffer->widths_max = Kbytes(1); - buffer->line_widths = (f32*)general_memory_allocate(general, max*sizeof(f32), BUBBLE_WIDTHS); - TentativeAssert(buffer->line_starts); - // TODO(allen): when unable to allocate? - } - - Buffer_Measure_Starts state = {}; - while (buffer_measure_starts_widths(&state, buffer, advance_data)){ - i32 count = state.count; - i32 max = buffer->line_max; - max = ((max + 1) << 1); - - { - i32 *new_lines = (i32*)general_memory_reallocate( - general, buffer->line_starts, sizeof(i32)*count, sizeof(i32)*max, BUBBLE_STARTS); - - // TODO(allen): when unable to grow? - TentativeAssert(new_lines); - buffer->line_starts = new_lines; - buffer->line_max = max; - } - - { - f32 *new_lines = (f32*) - general_memory_reallocate(general, buffer->line_widths, - sizeof(f32)*count, sizeof(f32)*max, BUBBLE_WIDTHS); - - // TODO(allen): when unable to grow? - TentativeAssert(new_lines); - buffer->line_widths = new_lines; - buffer->widths_max = max; - } - - } - buffer->line_count = state.count; - buffer->widths_count = state.count; -} - -struct Opaque_Font_Advance{ - void *data; - int stride; -}; - -inline Opaque_Font_Advance -get_opaque_font_advance(Render_Font *font){ - Opaque_Font_Advance result; - result.data = (char*)font->chardata + OffsetOfPtr(font->chardata, xadvance); - result.stride = sizeof(*font->chardata); - return result; -} - -inline i32 -view_wrapped_line_span(f32 line_width, f32 max_width){ - i32 line_count = CEIL32(line_width / max_width); - if (line_count == 0) line_count = 1; - return line_count; -} - -internal i32 -view_compute_lowest_line(View *view){ - i32 lowest_line = 0; - i32 last_line = view->file_data.line_count - 1; - if (last_line > 0){ - if (view->file_data.unwrapped_lines){ - lowest_line = last_line; - } - else{ - f32 wrap_y = view->file_data.line_wrap_y[last_line]; - lowest_line = FLOOR32(wrap_y / view->font_height); - f32 max_width = view_file_width(view); - - Editing_File *file = view->file_data.file; - Assert(!file->is_dummy); - f32 width = file->state.buffer.line_widths[last_line]; - i32 line_span = view_wrapped_line_span(width, max_width); - lowest_line += line_span - 1; - } - } - return lowest_line; -} - -internal void -view_measure_wraps(General_Memory *general, View *view){ - Buffer_Type *buffer; - - buffer = &view->file_data.file->state.buffer; - i32 line_count = buffer->line_count; - - if (view->file_data.line_max < line_count){ - i32 max = view->file_data.line_max = LargeRoundUp(line_count, Kbytes(1)); - if (view->file_data.line_wrap_y){ - view->file_data.line_wrap_y = (f32*) - general_memory_reallocate_nocopy(general, view->file_data.line_wrap_y, sizeof(f32)*max, BUBBLE_WRAPS); - } - else{ - view->file_data.line_wrap_y = (f32*) - general_memory_allocate(general, sizeof(f32)*max, BUBBLE_WRAPS); - } - } - - f32 line_height = (f32)view->font_height; - f32 max_width = view_file_width(view); - buffer_measure_wrap_y(buffer, view->file_data.line_wrap_y, line_height, max_width); - - view->file_data.line_count = line_count; -} - -internal void -file_create_from_string(System_Functions *system, Models *models, - Editing_File *file, char *filename, String val, b8 read_only = 0){ - - Font_Set *font_set = models->font_set; - Working_Set *working_set = &models->working_set; - General_Memory *general = &models->mem.general; - Partition *part = &models->mem.part; - Buffer_Init_Type init; - i32 page_size, scratch_size, init_success; - - file->state = editing_file_state_zero(); - - init = buffer_begin_init(&file->state.buffer, val.str, val.size); - for (; buffer_init_need_more(&init); ){ - page_size = buffer_init_page_size(&init); - page_size = LargeRoundUp(page_size, Kbytes(4)); - if (page_size < Kbytes(4)) page_size = Kbytes(4); - void *data = general_memory_allocate(general, page_size, BUBBLE_BUFFER); - buffer_init_provide_page(&init, data, page_size); - } - - scratch_size = partition_remaining(part); - Assert(scratch_size > 0); - init_success = buffer_end_init(&init, part->base + part->pos, scratch_size); - AllowLocal(init_success); - Assert(init_success); - - if (buffer_size(&file->state.buffer) < val.size){ - file->settings.dos_write_mode = 1; - } - - file_init_strings(file); - file_set_name(working_set, file, (char*)filename); - - file->state.font_id = models->global_font.font_id; - - file_synchronize_times(system, file, filename); - - Render_Font *font = get_font_info(font_set, file->state.font_id)->font; - float *advance_data = 0; - if (font) advance_data = font->advance_data; - file_measure_starts_widths(system, general, &file->state.buffer, advance_data); - - file->settings.read_only = read_only; - if (!read_only){ - // TODO(allen): Redo undo system (if you don't mind the pun) - i32 request_size = Kbytes(64); - file->state.undo.undo.max = request_size; - file->state.undo.undo.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); - file->state.undo.undo.edit_max = request_size / sizeof(Edit_Step); - file->state.undo.undo.edits = (Edit_Step*)general_memory_allocate(general, request_size, BUBBLE_UNDO); - - file->state.undo.redo.max = request_size; - file->state.undo.redo.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); - file->state.undo.redo.edit_max = request_size / sizeof(Edit_Step); - file->state.undo.redo.edits = (Edit_Step*)general_memory_allocate(general, request_size, BUBBLE_UNDO); - - file->state.undo.history.max = request_size; - file->state.undo.history.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); - file->state.undo.history.edit_max = request_size / sizeof(Edit_Step); - file->state.undo.history.edits = (Edit_Step*)general_memory_allocate(general, request_size, BUBBLE_UNDO); - - file->state.undo.children.max = request_size; - file->state.undo.children.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); - file->state.undo.children.edit_max = request_size / sizeof(Buffer_Edit); - file->state.undo.children.edits = (Buffer_Edit*)general_memory_allocate(general, request_size, BUBBLE_UNDO); - - file->state.undo.history_block_count = 1; - file->state.undo.history_head_block = 0; - file->state.undo.current_block_normal = 1; - } - - Hook_Function *open_hook = models->hooks[hook_open_file]; - models->buffer_param_indices[models->buffer_param_count++] = file->id.id; - open_hook(&models->app_links); - models->buffer_param_count = 0; - file->settings.is_initialized = 1; -} - -internal b32 -file_create_empty(System_Functions *system, - Models *models, Editing_File *file, char *filename){ - file_create_from_string(system, models, file, filename, string_zero()); - return (1); -} - -internal b32 -file_create_read_only(System_Functions *system, - Models *models, Editing_File *file, char *filename){ - file_create_from_string(system, models, file, filename, string_zero(), 1); - return (1); -} - -internal void -file_close(System_Functions *system, General_Memory *general, Editing_File *file){ - if (file->state.still_lexing){ - system->cancel_job(BACKGROUND_THREADS, file->state.lex_job); - if (file->state.swap_stack.tokens){ - general_memory_free(general, file->state.swap_stack.tokens); - file->state.swap_stack.tokens = 0; - } - } - if (file->state.token_stack.tokens){ - general_memory_free(general, file->state.token_stack.tokens); - } - - Buffer_Type *buffer = &file->state.buffer; - if (buffer->data){ - general_memory_free(general, buffer->data); - general_memory_free(general, buffer->line_starts); - general_memory_free(general, buffer->line_widths); - } - - if (file->state.undo.undo.edits){ - general_memory_free(general, file->state.undo.undo.strings); - general_memory_free(general, file->state.undo.undo.edits); - - general_memory_free(general, file->state.undo.redo.strings); - general_memory_free(general, file->state.undo.redo.edits); - - general_memory_free(general, file->state.undo.history.strings); - general_memory_free(general, file->state.undo.history.edits); - - general_memory_free(general, file->state.undo.children.strings); - general_memory_free(general, file->state.undo.children.edits); - } -} - -struct Shift_Information{ - i32 start, end, amount; -}; - -internal -Job_Callback_Sig(job_full_lex){ - Editing_File *file = (Editing_File*)data[0]; - General_Memory *general = (General_Memory*)data[1]; - - Cpp_File cpp_file; - cpp_file.data = file->state.buffer.data; - cpp_file.size = file->state.buffer.size; - - Cpp_Token_Stack tokens; - tokens.tokens = (Cpp_Token*)memory->data; - tokens.max_count = memory->size / sizeof(Cpp_Token); - tokens.count = 0; - - Cpp_Lex_Data status = cpp_lex_file_nonalloc(cpp_file, &tokens); - - while (!status.complete){ - system->grow_thread_memory(memory); - tokens.tokens = (Cpp_Token*)memory->data; - tokens.max_count = memory->size / sizeof(Cpp_Token); - status = cpp_lex_file_nonalloc(cpp_file, &tokens, status); - } - - i32 new_max = LargeRoundUp(tokens.count+1, Kbytes(1)); - - system->acquire_lock(FRAME_LOCK); - { - Assert(file->state.swap_stack.tokens == 0); - file->state.swap_stack.tokens = (Cpp_Token*) - general_memory_allocate(general, new_max*sizeof(Cpp_Token), BUBBLE_TOKENS); - } - system->release_lock(FRAME_LOCK); - - u8 *dest = (u8*)file->state.swap_stack.tokens; - u8 *src = (u8*)tokens.tokens; - - memcpy(dest, src, tokens.count*sizeof(Cpp_Token)); - - system->acquire_lock(FRAME_LOCK); - { - file->state.token_stack.count = tokens.count; - file->state.token_stack.max_count = new_max; - if (file->state.token_stack.tokens) - general_memory_free(general, file->state.token_stack.tokens); - file->state.token_stack.tokens = file->state.swap_stack.tokens; - file->state.swap_stack.tokens = 0; - } - system->release_lock(FRAME_LOCK); - - // NOTE(allen): These are outside the locked section because I don't - // think getting these out of order will cause critical bugs, and I - // want to minimize what's done in locked sections. - file->state.tokens_complete = 1; - file->state.still_lexing = 0; -} - - -internal void -file_kill_tokens(System_Functions *system, - General_Memory *general, Editing_File *file){ - file->settings.tokens_exist = 0; - if (file->state.still_lexing){ - system->cancel_job(BACKGROUND_THREADS, file->state.lex_job); - if (file->state.swap_stack.tokens){ - general_memory_free(general, file->state.swap_stack.tokens); - file->state.swap_stack.tokens = 0; - } - } - if (file->state.token_stack.tokens){ - general_memory_free(general, file->state.token_stack.tokens); - } - file->state.tokens_complete = 0; - file->state.token_stack = cpp_token_stack_zero(); -} - -#if BUFFER_EXPERIMENT_SCALPEL <= 0 -internal void -file_first_lex_parallel(System_Functions *system, - General_Memory *general, Editing_File *file){ - file->settings.tokens_exist = 1; - - if (file->is_loading == 0 && file->state.still_lexing == 0){ - Assert(file->state.token_stack.tokens == 0); - - file->state.tokens_complete = 0; - file->state.still_lexing = 1; - - Job_Data job; - job.callback = job_full_lex; - job.data[0] = file; - job.data[1] = general; - job.memory_request = Kbytes(64); - file->state.lex_job = system->post_job(BACKGROUND_THREADS, job); - } -} -#endif - -internal void -file_relex_parallel(System_Functions *system, - Mem_Options *mem, Editing_File *file, - i32 start_i, i32 end_i, i32 amount){ - General_Memory *general = &mem->general; - Partition *part = &mem->part; - if (file->state.token_stack.tokens == 0){ - file_first_lex_parallel(system, general, file); - return; - } - - b32 inline_lex = !file->state.still_lexing; - if (inline_lex){ - Cpp_File cpp_file; - cpp_file.data = file->state.buffer.data; - cpp_file.size = file->state.buffer.size; - - Cpp_Token_Stack *stack = &file->state.token_stack; - - Cpp_Relex_State state = - cpp_relex_nonalloc_start(cpp_file, stack, - start_i, end_i, amount, 100); - - Temp_Memory temp = begin_temp_memory(part); - i32 relex_end; - Cpp_Token_Stack relex_space; - relex_space.count = 0; - relex_space.max_count = state.space_request; - relex_space.tokens = push_array(part, Cpp_Token, relex_space.max_count); - if (cpp_relex_nonalloc_main(&state, &relex_space, &relex_end)){ - inline_lex = 0; - } - else{ - i32 delete_amount = relex_end - state.start_token_i; - i32 shift_amount = relex_space.count - delete_amount; - - if (shift_amount != 0){ - int new_count = stack->count + shift_amount; - if (new_count > stack->max_count){ - int new_max = LargeRoundUp(new_count, Kbytes(1)); - stack->tokens = (Cpp_Token*) - general_memory_reallocate(general, stack->tokens, - stack->count*sizeof(Cpp_Token), - new_max*sizeof(Cpp_Token), BUBBLE_TOKENS); - stack->max_count = new_max; - } - - int shift_size = stack->count - relex_end; - if (shift_size > 0){ - Cpp_Token *old_base = stack->tokens + relex_end; - memmove(old_base + shift_amount, old_base, - sizeof(Cpp_Token)*shift_size); - } - - stack->count += shift_amount; - } - - memcpy(state.stack->tokens + state.start_token_i, relex_space.tokens, - sizeof(Cpp_Token)*relex_space.count); - } - - end_temp_memory(temp); - } - - if (!inline_lex){ - Cpp_Token_Stack *stack = &file->state.token_stack; - Cpp_Get_Token_Result get_token_result = cpp_get_token(stack, end_i); - i32 end_token_i = get_token_result.token_index; - - if (end_token_i < 0) end_token_i = 0; - else if (end_i > stack->tokens[end_token_i].start) ++end_token_i; - - cpp_shift_token_starts(stack, end_token_i, amount); - --end_token_i; - if (end_token_i >= 0){ - Cpp_Token *token = stack->tokens + end_token_i; - if (token->start < end_i && token->start + token->size > end_i){ - token->size += amount; - } - } - - file->state.still_lexing = 1; - - Job_Data job; - job.callback = job_full_lex; - job.data[0] = file; - job.data[1] = general; - job.memory_request = Kbytes(64); - file->state.lex_job = system->post_job(BACKGROUND_THREADS, job); - } -} - -internal void -undo_stack_grow_string(General_Memory *general, Edit_Stack *stack, i32 extra_size){ - i32 old_max = stack->max; - u8 *old_str = stack->strings; - i32 new_max = old_max*2 + extra_size; - u8 *new_str = (u8*) - general_memory_reallocate(general, old_str, old_max, new_max); - stack->strings = new_str; - stack->max = new_max; -} - -internal void -undo_stack_grow_edits(General_Memory *general, Edit_Stack *stack){ - i32 old_max = stack->edit_max; - Edit_Step *old_eds = stack->edits; - i32 new_max = old_max*2 + 2; - Edit_Step *new_eds = (Edit_Step*) - general_memory_reallocate(general, old_eds, old_max*sizeof(Edit_Step), new_max*sizeof(Edit_Step)); - stack->edits = new_eds; - stack->edit_max = new_max; -} - -internal void -child_stack_grow_string(General_Memory *general, Small_Edit_Stack *stack, i32 extra_size){ - i32 old_max = stack->max; - u8 *old_str = stack->strings; - i32 new_max = old_max*2 + extra_size; - u8 *new_str = (u8*) - general_memory_reallocate(general, old_str, old_max, new_max); - stack->strings = new_str; - stack->max = new_max; -} - -internal void -child_stack_grow_edits(General_Memory *general, Small_Edit_Stack *stack, i32 amount){ - i32 old_max = stack->edit_max; - Buffer_Edit *old_eds = stack->edits; - i32 new_max = old_max*2 + amount; - Buffer_Edit *new_eds = (Buffer_Edit*) - general_memory_reallocate(general, old_eds, old_max*sizeof(Buffer_Edit), new_max*sizeof(Buffer_Edit)); - stack->edits = new_eds; - stack->edit_max = new_max; -} - -internal i32 -undo_children_push(General_Memory *general, Small_Edit_Stack *children, - Buffer_Edit *edits, i32 edit_count, u8 *strings, i32 string_size){ - i32 result = children->edit_count; - if (children->edit_count + edit_count > children->edit_max) - child_stack_grow_edits(general, children, edit_count); - - if (children->size + string_size > children->max) - child_stack_grow_string(general, children, string_size); - - memcpy(children->edits + children->edit_count, edits, edit_count*sizeof(Buffer_Edit)); - memcpy(children->strings + children->size, strings, string_size); - - Buffer_Edit *edit = children->edits + children->edit_count; - i32 start_pos = children->size; - for (i32 i = 0; i < edit_count; ++i, ++edit){ - edit->str_start += start_pos; - } - - children->edit_count += edit_count; - children->size += string_size; - - return result; -} - -struct Edit_Spec{ - u8 *str; - Edit_Step step; -}; - -internal Edit_Step* -file_post_undo(General_Memory *general, Editing_File *file, - Edit_Step step, b32 do_merge, b32 can_merge){ - if (step.type == ED_NORMAL){ - file->state.undo.redo.size = 0; - file->state.undo.redo.edit_count = 0; - } - - Edit_Stack *undo = &file->state.undo.undo; - Edit_Step *result = 0; - - if (step.child_count == 0){ - if (step.edit.end - step.edit.start + undo->size > undo->max) - undo_stack_grow_string(general, undo, step.edit.end - step.edit.start); - - Buffer_Edit inv; - buffer_invert_edit(&file->state.buffer, step.edit, &inv, - (char*)undo->strings, &undo->size, undo->max); - - Edit_Step inv_step = {}; - inv_step.edit = inv; - inv_step.pre_pos = step.pre_pos; - inv_step.post_pos = step.post_pos; - inv_step.can_merge = (b8)can_merge; - inv_step.type = ED_UNDO; - - b32 did_merge = 0; - if (do_merge && undo->edit_count > 0){ - Edit_Step prev = undo->edits[undo->edit_count-1]; - if (prev.can_merge && inv_step.edit.len == 0 && prev.edit.len == 0){ - if (prev.edit.end == inv_step.edit.start){ - did_merge = 1; - inv_step.edit.start = prev.edit.start; - inv_step.pre_pos = prev.pre_pos; - } - } - } - - if (did_merge){ - result = undo->edits + (undo->edit_count-1); - *result = inv_step; - } - else{ - if (undo->edit_count == undo->edit_max) - undo_stack_grow_edits(general, undo); - - result = undo->edits + (undo->edit_count++); - *result = inv_step; - } - } - else{ - Edit_Step inv_step = {}; - inv_step.type = ED_UNDO; - inv_step.first_child = step.inverse_first_child; - inv_step.inverse_first_child = step.first_child; - inv_step.special_type = step.special_type; - inv_step.child_count = step.inverse_child_count; - inv_step.inverse_child_count = step.child_count; - - if (undo->edit_count == undo->edit_max) - undo_stack_grow_edits(general, undo); - result = undo->edits + (undo->edit_count++); - *result = inv_step; - } - return result; -} - -inline void -undo_stack_pop(Edit_Stack *stack){ - if (stack->edit_count > 0){ - Edit_Step *edit = stack->edits + (--stack->edit_count); - if (edit->child_count == 0){ - stack->size -= edit->edit.len; - } - } -} - -internal void -file_post_redo(General_Memory *general, Editing_File *file, Edit_Step step){ - Edit_Stack *redo = &file->state.undo.redo; - - if (step.child_count == 0){ - if (step.edit.end - step.edit.start + redo->size > redo->max) - undo_stack_grow_string(general, redo, step.edit.end - step.edit.start); - - Buffer_Edit inv; - buffer_invert_edit(&file->state.buffer, step.edit, &inv, - (char*)redo->strings, &redo->size, redo->max); - - Edit_Step inv_step = {}; - inv_step.edit = inv; - inv_step.pre_pos = step.pre_pos; - inv_step.post_pos = step.post_pos; - inv_step.type = ED_REDO; - - if (redo->edit_count == redo->edit_max) - undo_stack_grow_edits(general, redo); - redo->edits[redo->edit_count++] = inv_step; - } - else{ - Edit_Step inv_step = {}; - inv_step.type = ED_REDO; - inv_step.first_child = step.inverse_first_child; - inv_step.inverse_first_child = step.first_child; - inv_step.special_type = step.special_type; - inv_step.child_count = step.inverse_child_count; - inv_step.inverse_child_count = step.child_count; - - if (redo->edit_count == redo->edit_max){ - undo_stack_grow_edits(general, redo); - } - redo->edits[redo->edit_count++] = inv_step; - } -} - -inline void -file_post_history_block(Editing_File *file, i32 pos){ - Assert(file->state.undo.history_head_block < pos); - Assert(pos < file->state.undo.history.edit_count); - - Edit_Step *history = file->state.undo.history.edits; - Edit_Step *step = history + file->state.undo.history_head_block; - step->next_block = pos; - step = history + pos; - step->prev_block = file->state.undo.history_head_block; - file->state.undo.history_head_block = pos; - ++file->state.undo.history_block_count; -} - -inline void -file_unpost_history_block(Editing_File *file){ - Assert(file->state.undo.history_block_count > 1); - --file->state.undo.history_block_count; - Edit_Step *old_head = file->state.undo.history.edits + file->state.undo.history_head_block; - file->state.undo.history_head_block = old_head->prev_block; -} - -internal Edit_Step* -file_post_history(General_Memory *general, Editing_File *file, - Edit_Step step, b32 do_merge, b32 can_merge){ - Edit_Stack *history = &file->state.undo.history; - Edit_Step *result = 0; - - persist Edit_Type reverse_types[4]; - if (reverse_types[ED_UNDO] == 0){ - reverse_types[ED_NORMAL] = ED_REVERSE_NORMAL; - reverse_types[ED_REVERSE_NORMAL] = ED_NORMAL; - reverse_types[ED_UNDO] = ED_REDO; - reverse_types[ED_REDO] = ED_UNDO; - } - - if (step.child_count == 0){ - if (step.edit.end - step.edit.start + history->size > history->max) - undo_stack_grow_string(general, history, step.edit.end - step.edit.start); - - Buffer_Edit inv; - buffer_invert_edit(&file->state.buffer, step.edit, &inv, - (char*)history->strings, &history->size, history->max); - - Edit_Step inv_step = {}; - inv_step.edit = inv; - inv_step.pre_pos = step.pre_pos; - inv_step.post_pos = step.post_pos; - inv_step.can_merge = (b8)can_merge; - inv_step.type = reverse_types[step.type]; - - bool32 did_merge = 0; - if (do_merge && history->edit_count > 0){ - Edit_Step prev = history->edits[history->edit_count-1]; - if (prev.can_merge && inv_step.edit.len == 0 && prev.edit.len == 0){ - if (prev.edit.end == inv_step.edit.start){ - did_merge = 1; - inv_step.edit.start = prev.edit.start; - inv_step.pre_pos = prev.pre_pos; - } - } - } - - if (did_merge){ - result = history->edits + (history->edit_count-1); - } - else{ - if (history->edit_count == history->edit_max) - undo_stack_grow_edits(general, history); - result = history->edits + (history->edit_count++); - } - - *result = inv_step; - } - else{ - Edit_Step inv_step = {}; - inv_step.type = reverse_types[step.type]; - inv_step.first_child = step.inverse_first_child; - inv_step.inverse_first_child = step.first_child; - inv_step.special_type = step.special_type; - inv_step.inverse_child_count = step.child_count; - inv_step.child_count = step.inverse_child_count; - - if (history->edit_count == history->edit_max) - undo_stack_grow_edits(general, history); - result = history->edits + (history->edit_count++); - *result = inv_step; - } - - return result; -} - -inline Full_Cursor -view_compute_cursor_from_pos(View *view, i32 pos){ - Editing_File *file = view->file_data.file; - Models *models = view->persistent.models; - Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; - - Full_Cursor result = {}; - if (font){ - f32 max_width = view_file_width(view); - result = buffer_cursor_from_pos(&file->state.buffer, pos, view->file_data.line_wrap_y, - max_width, (f32)view->font_height, font->advance_data); - } - return result; -} - -inline Full_Cursor -view_compute_cursor_from_unwrapped_xy(View *view, f32 seek_x, f32 seek_y, b32 round_down = 0){ - Editing_File *file = view->file_data.file; - Models *models = view->persistent.models; - Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; - - Full_Cursor result = {}; - if (font){ - f32 max_width = view_file_width(view); - result = buffer_cursor_from_unwrapped_xy(&file->state.buffer, seek_x, seek_y, - round_down, view->file_data.line_wrap_y, max_width, (f32)view->font_height, font->advance_data); - } - - return result; -} - -internal Full_Cursor -view_compute_cursor_from_wrapped_xy(View *view, f32 seek_x, f32 seek_y, b32 round_down = 0){ - Editing_File *file = view->file_data.file; - Models *models = view->persistent.models; - Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; - - Full_Cursor result = {}; - if (font){ - f32 max_width = view_file_width(view); - result = buffer_cursor_from_wrapped_xy(&file->state.buffer, seek_x, seek_y, - round_down, view->file_data.line_wrap_y, - max_width, (f32)view->font_height, font->advance_data); - } - - return (result); -} - -internal Full_Cursor -view_compute_cursor_from_line_pos(View *view, i32 line, i32 pos){ - Editing_File *file = view->file_data.file; - Models *models = view->persistent.models; - Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; - - Full_Cursor result = {}; - if (font){ - f32 max_width = view_file_width(view); - result = buffer_cursor_from_line_character(&file->state.buffer, line, pos, - view->file_data.line_wrap_y, max_width, (f32)view->font_height, font->advance_data); - } - - return (result); -} - -inline Full_Cursor -view_compute_cursor(View *view, Buffer_Seek seek){ - Full_Cursor result = {}; - - switch(seek.type){ - case buffer_seek_pos: - result = view_compute_cursor_from_pos(view, seek.pos); - break; - - case buffer_seek_wrapped_xy: - result = view_compute_cursor_from_wrapped_xy(view, seek.x, seek.y); - break; - - case buffer_seek_unwrapped_xy: - result = view_compute_cursor_from_unwrapped_xy(view, seek.x, seek.y); - break; - - case buffer_seek_line_char: - result = view_compute_cursor_from_line_pos(view, seek.line, seek.character); - break; - } - - return (result); -} - -inline Full_Cursor -view_compute_cursor_from_xy(View *view, f32 seek_x, f32 seek_y){ - Full_Cursor result; - if (view->file_data.unwrapped_lines) result = view_compute_cursor_from_unwrapped_xy(view, seek_x, seek_y); - else result = view_compute_cursor_from_wrapped_xy(view, seek_x, seek_y); - return result; -} - -inline void -view_set_temp_highlight(View *view, i32 pos, i32 end_pos){ - view->file_data.temp_highlight = view_compute_cursor_from_pos(view, pos); - view->file_data.temp_highlight_end_pos = end_pos; - view->file_data.show_temp_highlight = 1; -} - -inline i32 -view_get_cursor_pos(View *view){ - i32 result; - if (view->file_data.show_temp_highlight){ - result = view->file_data.temp_highlight.pos; - } - else{ - result = view->recent->cursor.pos; - } - return result; -} - -inline f32 -view_get_cursor_x(View *view){ - f32 result; - Full_Cursor *cursor; - if (view->file_data.show_temp_highlight){ - cursor = &view->file_data.temp_highlight; - } - else{ - cursor = &view->recent->cursor; - } - if (view->file_data.unwrapped_lines){ - result = cursor->unwrapped_x; - } - else{ - result = cursor->wrapped_x; - } - return result; -} - -inline f32 -view_get_cursor_y(View *view){ - Full_Cursor *cursor; - f32 result; - - if (view->file_data.show_temp_highlight) cursor = &view->file_data.temp_highlight; - else cursor = &view->recent->cursor; - - if (view->file_data.unwrapped_lines) result = cursor->unwrapped_y; - else result = cursor->wrapped_y; - - return result; -} - -#define CursorMaxY_(m,h) ((m) - (h)*3) -#define CursorMinY_(m,h) (-(m) + (h)*2) - -#define CursorMaxY(m,h) (CursorMaxY_(m,h) > 0)?(CursorMaxY_(m,h)):(0) -#define CursorMinY(m,h) (CursorMinY_(m,h) > 0)?(CursorMinY_(m,h)):(0) - -internal void -view_move_cursor_to_view(View *view){ - f32 min_target_y = 0; - i32 line_height = view->font_height; - f32 old_cursor_y = view_get_cursor_y(view); - f32 cursor_y = old_cursor_y; - f32 target_y = view->recent->scroll.target_y; - f32 cursor_max_y = CursorMaxY(view_file_height(view), line_height); - f32 cursor_min_y = CursorMinY(min_target_y, line_height); - - if (cursor_y > target_y + cursor_max_y){ - cursor_y = target_y + cursor_max_y; - } - if (target_y != 0 && cursor_y < target_y + cursor_min_y){ - cursor_y = target_y + cursor_min_y; - } - - if (cursor_y != old_cursor_y){ - if (cursor_y > old_cursor_y){ - cursor_y += line_height; - } - else{ - cursor_y -= line_height; - } - view->recent->cursor = - view_compute_cursor_from_xy(view, view->recent->preferred_x, cursor_y); - } -} - -internal void -view_move_view_to_cursor(View *view, GUI_Scroll_Vars *scroll){ - f32 line_height = (f32)view->font_height; - f32 delta_y = 3.f*line_height; - - f32 max_visible_y = view_file_height(view); - f32 max_x = view_file_width(view); - - f32 cursor_y = view_get_cursor_y(view); - f32 cursor_x = view_get_cursor_x(view); - - GUI_Scroll_Vars scroll_vars = *scroll; - f32 target_y = scroll_vars.target_y; - f32 target_x = scroll_vars.target_x; - - f32 cursor_max_y = CursorMaxY(max_visible_y, line_height); - f32 cursor_min_y = CursorMinY(0, line_height); - - if (cursor_y > target_y + cursor_max_y){ - target_y = cursor_y - cursor_max_y + delta_y; - } - if (cursor_y < target_y + cursor_min_y){ - target_y = cursor_y - delta_y - cursor_min_y; - } - - target_y = clamp(0.f, target_y, scroll_vars.max_y); - - if (cursor_x < target_x){ - target_x = (f32)Max(0, cursor_x - max_x/2); - } - else if (cursor_x >= target_x + max_x){ - target_x = (f32)(cursor_x - max_x/2); - } - - if (target_x != scroll_vars.target_x || target_y != scroll_vars.target_y){ - scroll->target_x = target_x; - scroll->target_y = target_y; - } -} - -inline void -file_view_nullify_file(View *view){ - General_Memory *general = &view->persistent.models->mem.general; - if (view->file_data.line_wrap_y){ - general_memory_free(general, view->file_data.line_wrap_y); - } - view->file_data = file_viewing_data_zero(); -} - -internal void -view_set_file(View *view, Editing_File *file, Models *models){ - Font_Info *fnt_info; - - // TODO(allen): This belongs somewhere else. - fnt_info = get_font_info(models->font_set, models->global_font.font_id); - view->font_advance = fnt_info->advance; - view->font_height = fnt_info->height; - - file_view_nullify_file(view); - view->file_data.file = file; - - if (file){ - u64 unique_buffer_id = file->unique_buffer_id; - Recent_File_Data *recent = view->recent; - Recent_File_Data temp_recent = {0}; - i32 i = 0; - i32 max = ArrayCount(view->recent)-1; - b32 found_recent_entry = 0; - - view->file_data.unwrapped_lines = file->settings.unwrapped_lines; - - for (; i < max; ++i, ++recent){ - if (recent->unique_buffer_id == unique_buffer_id){ - temp_recent = *recent; - memmove(view->recent+1, view->recent, sizeof(*recent)*i); - view->recent[0] = temp_recent; - found_recent_entry = 1; - break; - } - } - - if (found_recent_entry){ - if (file_is_ready(file)){ - view_measure_wraps(&models->mem.general, view); - view->recent->cursor = view_compute_cursor_from_pos(view, view->recent->cursor.pos); - -#if 0 - view->recent->scroll.max_y = 1000000000.f; -#endif - - view_move_view_to_cursor(view, &view->recent->scroll); - } - } - else{ - i = 15; - recent = view->recent + i; - memmove(view->recent+1, view->recent, sizeof(*recent)*i); - view->recent[0] = recent_file_data_zero(); - - recent = view->recent; - recent->unique_buffer_id = unique_buffer_id; - - if (file_is_ready(file)){ - view_measure_wraps(&models->mem.general, view); - view->recent->cursor = view_compute_cursor_from_pos(view, file->state.cursor_pos); - -#if 0 - view->recent->scroll.max_y = 1000000000.f; -#endif - - view_move_view_to_cursor(view, &view->recent->scroll); - view->reinit_scrolling = 1; - } - } - } -} - -struct Relative_Scrolling{ - f32 scroll_x, scroll_y; - f32 target_x, target_y; -}; - -internal Relative_Scrolling -view_get_relative_scrolling(View *view){ - Relative_Scrolling result; - f32 cursor_y; - cursor_y = view_get_cursor_y(view); - result.scroll_y = cursor_y - view->recent->scroll.scroll_y; - result.target_y = cursor_y - view->recent->scroll.target_y; - return(result); -} - -internal void -view_set_relative_scrolling(View *view, Relative_Scrolling scrolling){ - f32 cursor_y; - cursor_y = view_get_cursor_y(view); - view->recent->scroll.scroll_y = cursor_y - scrolling.scroll_y; - view->recent->scroll.target_y = - clamp_bottom(0.f, cursor_y - scrolling.target_y); -} - -inline void -view_cursor_move(View *view, Full_Cursor cursor){ - view->recent->cursor = cursor; - view->recent->preferred_x = view_get_cursor_x(view); - view->file_data.file->state.cursor_pos = view->recent->cursor.pos; - view->file_data.show_temp_highlight = 0; -} - -inline void -view_cursor_move(View *view, i32 pos){ - Full_Cursor cursor = view_compute_cursor_from_pos(view, pos); - view_cursor_move(view, cursor); -} - -inline void -view_cursor_move(View *view, f32 x, f32 y, b32 round_down = 0){ - Full_Cursor cursor; - if (view->file_data.unwrapped_lines){ - cursor = view_compute_cursor_from_unwrapped_xy(view, x, y, round_down); - } - else{ - cursor = view_compute_cursor_from_wrapped_xy(view, x, y, round_down); - } - view_cursor_move(view, cursor); -} - -inline void -view_cursor_move(View *view, i32 line, i32 pos){ - Full_Cursor cursor = view_compute_cursor_from_line_pos(view, line, pos); - view_cursor_move(view, cursor); -} - -inline void -view_set_widget(View *view, View_Widget_Type type){ - view->widget.type = type; -} - - -inline i32_Rect -view_widget_rect(View *view, i32 font_height){ - Panel *panel = view->panel; - i32_Rect result = panel->inner; - - if (view->file_data.file){ - result.y0 = result.y0 + font_height + 2; - } - - return(result); -} - -enum History_Mode{ - hist_normal, - hist_backward, - hist_forward -}; - -internal void -file_update_history_before_edit(Mem_Options *mem, Editing_File *file, Edit_Step step, u8 *str, - History_Mode history_mode){ - if (!file->state.undo.undo.edits) return; - General_Memory *general = &mem->general; - - b32 can_merge = 0, do_merge = 0; - switch (step.type){ - case ED_NORMAL: - { - if (step.edit.len == 1 && str && char_is_alpha_numeric(*str)) can_merge = 1; - if (step.edit.len == 1 && str && (can_merge || char_is_whitespace(*str))) do_merge = 1; - - if (history_mode != hist_forward) - file_post_history(general, file, step, do_merge, can_merge); - - file_post_undo(general, file, step, do_merge, can_merge); - }break; - - case ED_REVERSE_NORMAL: - { - if (history_mode != hist_forward) - file_post_history(general, file, step, do_merge, can_merge); - - undo_stack_pop(&file->state.undo.undo); - - b32 restore_redos = 0; - Edit_Step *redo_end = 0; - - if (history_mode == hist_backward && file->state.undo.edit_history_cursor > 0){ - restore_redos = 1; - redo_end = file->state.undo.history.edits + (file->state.undo.edit_history_cursor - 1); - } - else if (history_mode == hist_forward && file->state.undo.history.edit_count > 0){ - restore_redos = 1; - redo_end = file->state.undo.history.edits + (file->state.undo.history.edit_count - 1); - } - - if (restore_redos){ - Edit_Step *redo_start = redo_end; - i32 steps_of_redo = 0; - i32 strings_of_redo = 0; - i32 undo_count = 0; - while (redo_start->type == ED_REDO || redo_start->type == ED_UNDO){ - if (redo_start->type == ED_REDO){ - if (undo_count > 0) --undo_count; - else{ - ++steps_of_redo; - strings_of_redo += redo_start->edit.len; - } - } - else{ - ++undo_count; - } - --redo_start; - } - - if (redo_start < redo_end){ - ++redo_start; - ++redo_end; - - if (file->state.undo.redo.edit_count + steps_of_redo > file->state.undo.redo.edit_max) - undo_stack_grow_edits(general, &file->state.undo.redo); - - if (file->state.undo.redo.size + strings_of_redo > file->state.undo.redo.max) - undo_stack_grow_string(general, &file->state.undo.redo, strings_of_redo); - - u8 *str_src = file->state.undo.history.strings + redo_end->edit.str_start; - u8 *str_dest_base = file->state.undo.redo.strings; - i32 str_redo_pos = file->state.undo.redo.size + strings_of_redo; - - Edit_Step *edit_src = redo_end; - Edit_Step *edit_dest = - file->state.undo.redo.edits + file->state.undo.redo.edit_count + steps_of_redo; - - i32 undo_count = 0; - for (i32 i = 0; i < steps_of_redo;){ - --edit_src; - str_src -= edit_src->edit.len; - if (edit_src->type == ED_REDO){ - if (undo_count > 0){ - --undo_count; - } - else{ - ++i; - - --edit_dest; - *edit_dest = *edit_src; - - str_redo_pos -= edit_dest->edit.len; - edit_dest->edit.str_start = str_redo_pos; - - memcpy(str_dest_base + str_redo_pos, str_src, edit_dest->edit.len); - } - } - else{ - ++undo_count; - } - } - Assert(undo_count == 0); - - file->state.undo.redo.size += strings_of_redo; - file->state.undo.redo.edit_count += steps_of_redo; - } - } - }break; - - case ED_UNDO: - { - if (history_mode != hist_forward) - file_post_history(general, file, step, do_merge, can_merge); - file_post_redo(general, file, step); - undo_stack_pop(&file->state.undo.undo); - }break; - - case ED_REDO: - { - if (step.edit.len == 1 && str && char_is_alpha_numeric(*str)) can_merge = 1; - if (step.edit.len == 1 && str && (can_merge || char_is_whitespace(*str))) do_merge = 1; - - if (history_mode != hist_forward) - file_post_history(general, file, step, do_merge, can_merge); - - file_post_undo(general, file, step, do_merge, can_merge); - undo_stack_pop(&file->state.undo.redo); - }break; - } - - if (history_mode != hist_forward){ - if (step.type == ED_UNDO || step.type == ED_REDO){ - if (file->state.undo.current_block_normal){ - file_post_history_block(file, file->state.undo.history.edit_count - 1); - file->state.undo.current_block_normal = 0; - } - } - else{ - if (!file->state.undo.current_block_normal){ - file_post_history_block(file, file->state.undo.history.edit_count - 1); - file->state.undo.current_block_normal = 1; - } - } - } - else{ - if (file->state.undo.history_head_block == file->state.undo.history.edit_count){ - file_unpost_history_block(file); - file->state.undo.current_block_normal = !file->state.undo.current_block_normal; - } - } - - if (history_mode == hist_normal){ - file->state.undo.edit_history_cursor = file->state.undo.history.edit_count; - } -} - -inline void -file_pre_edit_maintenance(System_Functions *system, - General_Memory *general, - Editing_File *file){ - if (file->state.still_lexing){ - system->cancel_job(BACKGROUND_THREADS, file->state.lex_job); - if (file->state.swap_stack.tokens){ - general_memory_free(general, file->state.swap_stack.tokens); - file->state.swap_stack.tokens = 0; - } - file->state.still_lexing = 0; - } - file->state.last_4ed_edit_time = system->now_time_stamp(); -} - -struct Cursor_Fix_Descriptor{ - b32 is_batch; - union{ - struct{ - Buffer_Edit *batch; - i32 batch_size; - }; - struct{ - i32 start, end; - i32 shift_amount; - }; - }; -}; - -internal void -file_edit_cursor_fix(System_Functions *system, - Partition *part, General_Memory *general, - Editing_File *file, Editing_Layout *layout, - Cursor_Fix_Descriptor desc){ - - Full_Cursor temp_cursor; - Temp_Memory cursor_temp = begin_temp_memory(part); - i32 cursor_max = layout->panel_max_count * 2; - Cursor_With_Index *cursors = push_array(part, Cursor_With_Index, cursor_max); - - f32 y_offset = 0, y_position = 0; - i32 cursor_count = 0; - - View *view; - Panel *panel, *used_panels; - used_panels = &layout->used_sentinel; - - for (dll_items(panel, used_panels)){ - view = panel->view; - if (view->file_data.file == file){ - view_measure_wraps(general, view); - write_cursor_with_index(cursors, &cursor_count, view->recent->cursor.pos); - write_cursor_with_index(cursors, &cursor_count, view->recent->mark - 1); - write_cursor_with_index(cursors, &cursor_count, view->recent->scroll_i - 1); - } - } - - if (cursor_count > 0){ - buffer_sort_cursors(cursors, cursor_count); - if (desc.is_batch){ - buffer_batch_edit_update_cursors(cursors, cursor_count, - desc.batch, desc.batch_size); - } - else{ - buffer_update_cursors(cursors, cursor_count, - desc.start, desc.end, - desc.shift_amount + (desc.end - desc.start)); - } - buffer_unsort_cursors(cursors, cursor_count); - - cursor_count = 0; - for (dll_items(panel, used_panels)){ - view = panel->view; - if (view && view->file_data.file == file){ - view_cursor_move(view, cursors[cursor_count++].pos); - view->recent->preferred_x = view_get_cursor_x(view); - - view->recent->mark = cursors[cursor_count++].pos + 1; - i32 new_scroll_i = cursors[cursor_count++].pos + 1; - if (view->recent->scroll_i != new_scroll_i){ - view->recent->scroll_i = new_scroll_i; - temp_cursor = view_compute_cursor_from_pos(view, view->recent->scroll_i); - y_offset = MOD(view->recent->scroll.scroll_y, view->font_height); - - if (view->file_data.unwrapped_lines){ - y_position = temp_cursor.unwrapped_y + y_offset; - view->recent->scroll.target_y += (y_position - view->recent->scroll.scroll_y); - view->recent->scroll.scroll_y = y_position; - } - else{ - y_position = temp_cursor.wrapped_y + y_offset; - view->recent->scroll.target_y += (y_position - view->recent->scroll.scroll_y); - view->recent->scroll.scroll_y = y_position; - } - } - } - } - } - - end_temp_memory(cursor_temp); -} - -internal void -file_do_single_edit(System_Functions *system, - Models *models, Editing_File *file, - Edit_Spec spec, History_Mode history_mode, b32 use_high_permission = 0){ - if (!use_high_permission && file->settings.read_only) return; - - Mem_Options *mem = &models->mem; - Editing_Layout *layout = &models->layout; - - // NOTE(allen): fixing stuff beforewards???? - file_update_history_before_edit(mem, file, spec.step, spec.str, history_mode); - file_pre_edit_maintenance(system, &mem->general, file); - - // NOTE(allen): actual text replacement - i32 shift_amount = 0; - General_Memory *general = &mem->general; - Partition *part = &mem->part; - - char *str = (char*)spec.str; - i32 start = spec.step.edit.start; - i32 end = spec.step.edit.end; - i32 str_len = spec.step.edit.len; - - i32 scratch_size = partition_remaining(part); - - Assert(scratch_size > 0); - i32 request_amount = 0; - Assert(end <= buffer_size(&file->state.buffer)); - while (buffer_replace_range(&file->state.buffer, start, end, str, str_len, &shift_amount, - part->base + part->pos, scratch_size, &request_amount)){ - void *new_data = 0; - if (request_amount > 0){ - new_data = general_memory_allocate(general, request_amount, BUBBLE_BUFFER); - } - void *old_data = buffer_edit_provide_memory(&file->state.buffer, new_data, request_amount); - if (old_data) general_memory_free(general, old_data); - } - - Buffer_Type *buffer = &file->state.buffer; - i32 line_start = buffer_get_line_index(&file->state.buffer, start); - i32 line_end = buffer_get_line_index(&file->state.buffer, end); - i32 replaced_line_count = line_end - line_start; - i32 new_line_count = buffer_count_newlines(&file->state.buffer, start, start+str_len); - i32 line_shift = new_line_count - replaced_line_count; - - Render_Font *font = get_font_info(models->font_set, file->state.font_id)->font; - - file_grow_starts_widths_as_needed(general, buffer, line_shift); - buffer_remeasure_starts(buffer, line_start, line_end, line_shift, shift_amount); - buffer_remeasure_widths(buffer, font->advance_data, line_start, line_end, line_shift); - - // NOTE(allen): update the views looking at this file - Panel *panel, *used_panels; - used_panels = &layout->used_sentinel; - - for (dll_items(panel, used_panels)){ - View *view = panel->view; - if (view->file_data.file == file){ - view_measure_wraps(general, view); - } - } - -#if BUFFER_EXPERIMENT_SCALPEL <= 0 - // NOTE(allen): fixing stuff afterwards - if (file->settings.tokens_exist) - file_relex_parallel(system, mem, file, start, end, shift_amount); -#endif - - Cursor_Fix_Descriptor desc = {}; - desc.start = start; - desc.end = end; - desc.shift_amount = shift_amount; - - file_edit_cursor_fix(system, part, general, file, layout, desc); -} - -internal void -file_do_white_batch_edit(System_Functions *system, Models *models, Editing_File *file, - Edit_Spec spec, History_Mode history_mode, b32 use_high_permission = 0){ - if (!use_high_permission && file->settings.read_only) return; - - Mem_Options *mem = &models->mem; - Editing_Layout *layout = &models->layout; - - // NOTE(allen): fixing stuff "beforewards"??? - Assert(spec.str == 0); - file_update_history_before_edit(mem, file, spec.step, 0, history_mode); - file_pre_edit_maintenance(system, &mem->general, file); - - // NOTE(allen): actual text replacement - General_Memory *general = &mem->general; - Partition *part = &mem->part; - - u8 *str_base = file->state.undo.children.strings; - i32 batch_size = spec.step.child_count; - Buffer_Edit *batch = file->state.undo.children.edits + spec.step.first_child; - - Assert(spec.step.first_child < file->state.undo.children.edit_count); - Assert(batch_size >= 0); - - i32 scratch_size = partition_remaining(part); - Buffer_Batch_State state = {}; - i32 request_amount; - while (buffer_batch_edit_step(&state, &file->state.buffer, batch, - (char*)str_base, batch_size, part->base + part->pos, - scratch_size, &request_amount)){ - void *new_data = 0; - if (request_amount > 0){ - new_data = general_memory_allocate(general, request_amount, BUBBLE_BUFFER); - } - void *old_data = buffer_edit_provide_memory(&file->state.buffer, new_data, request_amount); - if (old_data) general_memory_free(general, old_data); - } - - // NOTE(allen): meta data - { - Buffer_Measure_Starts state = {}; - Render_Font *font = get_font_info(models->font_set, file->state.font_id)->font; - float *advance_data = 0; - if (font) advance_data = font->advance_data; - buffer_measure_starts_widths(&state, &file->state.buffer, advance_data); - } - - // NOTE(allen): cursor fixing - { - Cursor_Fix_Descriptor desc = {}; - desc.is_batch = 1; - desc.batch = batch; - desc.batch_size = batch_size; - - file_edit_cursor_fix(system, part, general, file, layout, desc); - } - - // NOTE(allen): token fixing - if (file->state.tokens_complete){ - Cpp_Token_Stack tokens = file->state.token_stack; - Cpp_Token *token = tokens.tokens; - Cpp_Token *end_token = tokens.tokens + tokens.count; - Cpp_Token original = {(Cpp_Token_Type)0}; - - Buffer_Edit *edit = batch; - Buffer_Edit *end_edit = batch + batch_size; - - i32 shift_amount = 0; - i32 local_shift = 0; - - for (; token < end_token; ++token){ - original = *token; - for (; edit < end_edit && edit->start <= original.start; ++edit){ - local_shift = (edit->len - (edit->end - edit->start)); - shift_amount += local_shift; - } - token->start += shift_amount; - local_shift = 0; - for (; edit < end_edit && edit->start < original.start + original.size; ++edit){ - local_shift += (edit->len - (edit->end - edit->start)); - } - token->size += local_shift; - shift_amount += local_shift; - } - } -} - -inline void -file_replace_range(System_Functions *system, Models *models, Editing_File *file, - i32 start, i32 end, char *str, i32 len, i32 next_cursor, b32 use_high_permission = 0){ - Edit_Spec spec = {}; - spec.step.type = ED_NORMAL; - spec.step.edit.start = start; - spec.step.edit.end = end; - - spec.step.edit.len = len; - spec.step.pre_pos = file->state.cursor_pos; - spec.step.post_pos = next_cursor; - spec.str = (u8*)str; - file_do_single_edit(system, models, file, spec, hist_normal, use_high_permission); -} - -inline void -file_clear(System_Functions *system, Models *models, Editing_File *file, b32 use_high_permission = 0){ - file_replace_range(system, models, file, 0, buffer_size(&file->state.buffer), 0, 0, 0, use_high_permission); -} - -inline void -view_replace_range(System_Functions *system, Models *models, View *view, - i32 start, i32 end, char *str, i32 len, i32 next_cursor){ - file_replace_range(system, models, view->file_data.file, start, end, str, len, next_cursor); -} - -inline void -view_post_paste_effect(View *view, i32 ticks, i32 start, i32 size, u32 color){ - Editing_File *file = view->file_data.file; - - file->state.paste_effect.start = start; - file->state.paste_effect.end = start + size; - file->state.paste_effect.color = color; - file->state.paste_effect.tick_down = ticks; - file->state.paste_effect.tick_max = ticks; -} - -internal Style* -get_style(Models *models, i32 i){ - return (&models->styles.styles[i]); -} - -internal Style* -main_style(Models *models){ - return (get_style(models, 0)); -} - -internal void -view_undo_redo(System_Functions *system, - Models *models, View *view, - Edit_Stack *stack, Edit_Type expected_type){ - Editing_File *file = view->file_data.file; - - if (stack->edit_count > 0){ - Edit_Step step = stack->edits[stack->edit_count-1]; - - Assert(step.type == expected_type); - - Edit_Spec spec = {}; - spec.step = step; - - if (step.child_count == 0){ - spec.step.edit.str_start = 0; - spec.str = stack->strings + step.edit.str_start; - - file_do_single_edit(system, models, file, spec, hist_normal); - - if (expected_type == ED_UNDO) view_cursor_move(view, step.pre_pos); - else view_cursor_move(view, step.post_pos); - view->recent->mark = view->recent->cursor.pos; - - Style *style = main_style(models); - view_post_paste_effect(view, 10, step.edit.start, step.edit.len, - style->main.undo_color); - } - else{ - TentativeAssert(spec.step.special_type == 1); - file_do_white_batch_edit(system, models, view->file_data.file, spec, hist_normal); - } - } -} - -inline void -view_undo(System_Functions *system, Models *models, View *view){ - view_undo_redo(system, models, view, &view->file_data.file->state.undo.undo, ED_UNDO); -} - -inline void -view_redo(System_Functions *system, Models *models, View *view){ - view_undo_redo(system, models, view, &view->file_data.file->state.undo.redo, ED_REDO); -} - -inline u8* -write_data(u8 *ptr, void *x, i32 size){ - memcpy(ptr, x, size); - return (ptr + size); -} - -#define UseFileHistoryDump 0 - -#if UseFileHistoryDump -internal void -file_dump_history(System_Functions *system, Mem_Options *mem, Editing_File *file, char *filename){ - if (!file->state.undo.undo.edits) return; - - i32 size = 0; - - size += sizeof(i32); - size += file->state.undo.undo.edit_count*sizeof(Edit_Step); - size += sizeof(i32); - size += file->state.undo.redo.edit_count*sizeof(Edit_Step); - size += sizeof(i32); - size += file->state.undo.history.edit_count*sizeof(Edit_Step); - size += sizeof(i32); - size += file->state.undo.children.edit_count*sizeof(Buffer_Edit); - - size += sizeof(i32); - size += file->state.undo.undo.size; - size += sizeof(i32); - size += file->state.undo.redo.size; - size += sizeof(i32); - size += file->state.undo.history.size; - size += sizeof(i32); - size += file->state.undo.children.size; - - Partition *part = &mem->part; - i32 remaining = partition_remaining(part); - if (size < remaining){ - u8 *data, *curs; - data = (u8*)part->base + part->pos; - curs = data; - curs = write_data(curs, &file->state.undo.undo.edit_count, 4); - curs = write_data(curs, &file->state.undo.redo.edit_count, 4); - curs = write_data(curs, &file->state.undo.history.edit_count, 4); - curs = write_data(curs, &file->state.undo.children.edit_count, 4); - curs = write_data(curs, &file->state.undo.undo.size, 4); - curs = write_data(curs, &file->state.undo.redo.size, 4); - curs = write_data(curs, &file->state.undo.history.size, 4); - curs = write_data(curs, &file->state.undo.children.size, 4); - - curs = write_data(curs, file->state.undo.undo.edits, sizeof(Edit_Step)*file->state.undo.undo.edit_count); - curs = write_data(curs, file->state.undo.redo.edits, sizeof(Edit_Step)*file->state.undo.redo.edit_count); - curs = write_data(curs, file->state.undo.history.edits, sizeof(Edit_Step)*file->state.undo.history.edit_count); - curs = write_data(curs, file->state.undo.children.edits, sizeof(Buffer_Edit)*file->state.undo.children.edit_count); - - curs = write_data(curs, file->state.undo.undo.strings, file->state.undo.undo.size); - curs = write_data(curs, file->state.undo.redo.strings, file->state.undo.redo.size); - curs = write_data(curs, file->state.undo.history.strings, file->state.undo.history.size); - curs = write_data(curs, file->state.undo.children.strings, file->state.undo.children.size); - - Assert((i32)(curs - data) == size); - system->save_file(filename, data, size); - } -} -#endif - -internal void -view_history_step(System_Functions *system, Models *models, View *view, History_Mode history_mode){ - Assert(history_mode != hist_normal); - - Editing_File *file = view->file_data.file; - - b32 do_history_step = 0; - Edit_Step step = {}; - if (history_mode == hist_backward){ - if (file->state.undo.edit_history_cursor > 0){ - do_history_step = 1; - step = file->state.undo.history.edits[--file->state.undo.edit_history_cursor]; - } - } - else{ - if (file->state.undo.edit_history_cursor < file->state.undo.history.edit_count){ - Assert(((file->state.undo.history.edit_count - file->state.undo.edit_history_cursor) & 1) == 0); - step = file->state.undo.history.edits[--file->state.undo.history.edit_count]; - file->state.undo.history.size -= step.edit.len; - ++file->state.undo.edit_history_cursor; - do_history_step = 1; - } - } - - if (do_history_step){ - Edit_Spec spec; - spec.step = step; - - if (spec.step.child_count == 0){ - spec.step.edit.str_start = 0; - spec.str = file->state.undo.history.strings + step.edit.str_start; - - file_do_single_edit(system, models, file, spec, history_mode); - - switch (spec.step.type){ - case ED_NORMAL: - case ED_REDO: - view_cursor_move(view, step.post_pos); - break; - - case ED_REVERSE_NORMAL: - case ED_UNDO: - view_cursor_move(view, step.pre_pos); - break; - } - view->recent->mark = view->recent->cursor.pos; - } - else{ - TentativeAssert(spec.step.special_type == 1); - file_do_white_batch_edit(system, models, view->file_data.file, spec, history_mode); - } - } -} - -// TODO(allen): write these as streamed operations -internal i32 -view_find_end_of_line(View *view, i32 pos){ -#if BUFFER_EXPERIMENT_SCALPEL <= 0 - Editing_File *file = view->file_data.file; - char *data = file->state.buffer.data; - while (pos < file->state.buffer.size && data[pos] != '\n') ++pos; - if (pos > file->state.buffer.size) pos = file->state.buffer.size; -#endif - return pos; -} - -internal i32 -view_find_beginning_of_line(View *view, i32 pos){ -#if BUFFER_EXPERIMENT_SCALPEL <= 0 - Editing_File *file = view->file_data.file; - char *data = file->state.buffer.data; - if (pos > 0){ - --pos; - while (pos > 0 && data[pos] != '\n') --pos; - if (pos != 0) ++pos; - } -#endif - return pos; -} - -internal i32 -view_find_beginning_of_next_line(View *view, i32 pos){ -#if BUFFER_EXPERIMENT_SCALPEL <= 0 - Editing_File *file = view->file_data.file; - char *data = file->state.buffer.data; - while (pos < file->state.buffer.size && - !starts_new_line(data[pos])){ - ++pos; - } - if (pos < file->state.buffer.size){ - ++pos; - } -#endif - return pos; -} - -internal String* -working_set_next_clipboard_string(General_Memory *general, Working_Set *working, i32 str_size){ - String *result = 0; - i32 clipboard_current = working->clipboard_current; - if (working->clipboard_size == 0){ - clipboard_current = 0; - working->clipboard_size = 1; - } - else{ - ++clipboard_current; - if (clipboard_current >= working->clipboard_max_size){ - clipboard_current = 0; - } - else if (working->clipboard_size <= clipboard_current){ - working->clipboard_size = clipboard_current+1; - } - } - result = &working->clipboards[clipboard_current]; - working->clipboard_current = clipboard_current; - working->clipboard_rolling = clipboard_current; - char *new_str; - if (result->str){ - new_str = (char*)general_memory_reallocate(general, result->str, result->size, str_size); - } - else{ - new_str = (char*)general_memory_allocate(general, str_size+1); - } - // TODO(allen): What if new_str == 0? - *result = make_string(new_str, 0, str_size); - return result; -} - -internal String* -working_set_clipboard_head(Working_Set *working){ - String *result = 0; - if (working->clipboard_size > 0){ - i32 clipboard_index = working->clipboard_current; - working->clipboard_rolling = clipboard_index; - result = &working->clipboards[clipboard_index]; - } - return result; -} - -internal String* -working_set_clipboard_roll_down(Working_Set *working){ - String *result = 0; - if (working->clipboard_size > 0){ - i32 clipboard_index = working->clipboard_rolling; - --clipboard_index; - if (clipboard_index < 0){ - clipboard_index = working->clipboard_size-1; - } - working->clipboard_rolling = clipboard_index; - result = &working->clipboards[clipboard_index]; - } - return result; -} - -internal void -clipboard_copy(System_Functions *system, General_Memory *general, Working_Set *working, Range range, Editing_File *file){ - i32 size = range.end - range.start; - String *dest = working_set_next_clipboard_string(general, working, size); - buffer_stringify(&file->state.buffer, range.start, range.end, dest->str); - dest->size = size; - system->post_clipboard(*dest); -} - -internal Edit_Spec -file_compute_whitespace_edit(Mem_Options *mem, Editing_File *file, i32 cursor_pos, - Buffer_Edit *edits, char *str_base, i32 str_size, - Buffer_Edit *inverse_array, char *inv_str, i32 inv_max, - i32 edit_count){ - General_Memory *general = &mem->general; - - i32 inv_str_pos = 0; - Buffer_Invert_Batch state = {}; - if (buffer_invert_batch(&state, &file->state.buffer, edits, edit_count, - inverse_array, inv_str, &inv_str_pos, inv_max)){ - Assert(0); - } - - i32 first_child = - undo_children_push(general, &file->state.undo.children, - edits, edit_count, (u8*)(str_base), str_size); - i32 inverse_first_child = - undo_children_push(general, &file->state.undo.children, - inverse_array, edit_count, (u8*)(inv_str), inv_str_pos); - - Edit_Spec spec = {}; - spec.step.type = ED_NORMAL; - spec.step.first_child = first_child; - spec.step.inverse_first_child = inverse_first_child; - spec.step.special_type = 1; - spec.step.child_count = edit_count; - spec.step.inverse_child_count = edit_count; - spec.step.pre_pos = cursor_pos; - spec.step.post_pos = cursor_pos; - - return spec; -} - -internal void -view_clean_whitespace(System_Functions *system, Models *models, View *view){ - Mem_Options *mem = &models->mem; - Editing_File *file = view->file_data.file; - - Partition *part = &mem->part; - i32 line_count = file->state.buffer.line_count; - i32 edit_max = line_count * 2; - i32 edit_count = 0; - - Assert(file && !file->is_dummy); - - Temp_Memory temp = begin_temp_memory(part); - Buffer_Edit *edits = push_array(part, Buffer_Edit, edit_max); - - char *str_base = (char*)part->base + part->pos; - i32 str_size = 0; - for (i32 line_i = 0; line_i < line_count; ++line_i){ - i32 start = file->state.buffer.line_starts[line_i]; - Hard_Start_Result hard_start = - buffer_find_hard_start(&file->state.buffer, start, 4); - - if (hard_start.all_whitespace) hard_start.indent_pos = 0; - - if ((hard_start.all_whitespace && hard_start.char_pos > start) || !hard_start.all_space){ - Buffer_Edit new_edit; - new_edit.str_start = str_size; - str_size += hard_start.indent_pos; - char *str = push_array(part, char, hard_start.indent_pos); - for (i32 j = 0; j < hard_start.indent_pos; ++j) str[j] = ' '; - new_edit.len = hard_start.indent_pos; - new_edit.start = start; - new_edit.end = hard_start.char_pos; - edits[edit_count++] = new_edit; - } - Assert(edit_count <= edit_max); - } - - if (edit_count > 0){ - Assert(buffer_batch_debug_sort_check(edits, edit_count)); - - // NOTE(allen): computing edit spec, doing batch edit - Buffer_Edit *inverse_array = push_array(part, Buffer_Edit, edit_count); - Assert(inverse_array); - - char *inv_str = (char*)part->base + part->pos; - Edit_Spec spec = - file_compute_whitespace_edit(mem, file, view->recent->cursor.pos, edits, str_base, str_size, - inverse_array, inv_str, part->max - part->pos, edit_count); - - file_do_white_batch_edit(system, models, view->file_data.file, spec, hist_normal); - } - - end_temp_memory(temp); -} - -struct Indent_Options{ - b32 empty_blank_lines; - b32 use_tabs; - i32 tab_width; -}; - -struct Make_Batch_Result{ - char *str_base; - i32 str_size; - - Buffer_Edit *edits; - i32 edit_max; - i32 edit_count; -}; - -internal Cpp_Token* -get_first_token_at_line(Buffer *buffer, Cpp_Token_Stack tokens, i32 line){ - Cpp_Token *result = 0; - i32 start_pos = 0; - Cpp_Get_Token_Result get_token = {0}; - - start_pos = buffer->line_starts[line]; - get_token = cpp_get_token(&tokens, start_pos); - if (get_token.in_whitespace) get_token.token_index += 1; - result = tokens.tokens + get_token.token_index; - - return(result); -} - -internal Cpp_Token* -seek_matching_token_backwards(Cpp_Token_Stack tokens, Cpp_Token *token, - Cpp_Token_Type open_type, Cpp_Token_Type close_type){ - int nesting_level = 0; - if (token <= tokens.tokens){ - token = tokens.tokens; - } - else{ - for (; token > tokens.tokens; --token){ - if (!(token->flags & CPP_TFLAG_PP_BODY)){ - if (token->type == close_type){ - ++nesting_level; - } - else if (token->type == open_type){ - if (nesting_level == 0){ - break; - } - else{ - --nesting_level; - } - } - } - } - } - return(token); -} - -struct Indent_Parse_State{ - i32 current_indent; - i32 previous_line_indent; - i32 paren_nesting; - i32 paren_anchor_indent[16]; -}; - -internal i32 -compute_this_indent(Buffer *buffer, Indent_Parse_State indent, - Cpp_Token T, Cpp_Token prev_token, i32 line_i, i32 tab_width){ - - i32 previous_indent = indent.previous_line_indent; - i32 this_indent = 0; - - i32 this_line_start = buffer->line_starts[line_i]; - i32 next_line_start = 0; - - if (line_i+1 < buffer->line_count){ - next_line_start = buffer->line_starts[line_i+1]; - } - else{ - next_line_start = buffer_size(buffer); - } - - if ((prev_token.type == CPP_TOKEN_COMMENT || prev_token.type == CPP_TOKEN_STRING_CONSTANT) && - prev_token.start <= this_line_start && prev_token.start + prev_token.size > this_line_start){ - this_indent = previous_indent; - } - else{ - this_indent = indent.current_indent; - if (T.start < next_line_start){ - if (T.flags & CPP_TFLAG_PP_DIRECTIVE){ - this_indent = 0; - } - else{ - switch (T.type){ - case CPP_TOKEN_BRACKET_CLOSE: this_indent -= tab_width; break; - case CPP_TOKEN_BRACE_CLOSE: this_indent -= tab_width; break; - case CPP_TOKEN_BRACE_OPEN: break; - - default: - if (indent.current_indent > 0){ - if (!(prev_token.flags & CPP_TFLAG_PP_BODY || - prev_token.flags & CPP_TFLAG_PP_DIRECTIVE)){ - switch (prev_token.type){ - case CPP_TOKEN_BRACKET_OPEN: - case CPP_TOKEN_BRACE_OPEN: case CPP_TOKEN_BRACE_CLOSE: - case CPP_TOKEN_SEMICOLON: case CPP_TOKEN_COLON: - case CPP_TOKEN_COMMA: case CPP_TOKEN_COMMENT: break; - default: this_indent += tab_width; - } - } - } - } - } - } - if (this_indent < 0) this_indent = 0; - } - - if (indent.paren_nesting > 0){ - i32 level = indent.paren_nesting-1; - if (level >= ArrayCount(indent.paren_anchor_indent)){ - level = ArrayCount(indent.paren_anchor_indent)-1; - } - this_indent = indent.paren_anchor_indent[level]; - } - return(this_indent); -} - -internal i32* -get_line_indentation_marks(Partition *part, Buffer *buffer, Cpp_Token_Stack tokens, - i32 line_start, i32 line_end, i32 tab_width){ - - i32 indent_mark_count = line_end - line_start; - i32 *indent_marks = push_array(part, i32, indent_mark_count); - - Indent_Parse_State indent = {0}; - Cpp_Token *token = get_first_token_at_line(buffer, tokens, line_start); - - if (token != tokens.tokens){ - --token; - for (; token > tokens.tokens; --token){ - if (!(token->flags & CPP_TFLAG_PP_BODY)){ - switch(token->type){ - case CPP_TOKEN_BRACE_OPEN: - case CPP_TOKEN_BRACE_CLOSE: - goto out_of_loop; - } - } - } - out_of_loop:; - } - - // TODO(allen): This can maybe be it's own function now, so that we - // can do the decls in the order we want and avoid the extra binary search. - i32 found_safe_start_position = 0; - do{ - i32 line = buffer_get_line_index(buffer, token->start); - i32 start = buffer->line_starts[line]; - Hard_Start_Result hard_start = buffer_find_hard_start(buffer, start, tab_width); - - indent.current_indent = hard_start.indent_pos; - - Cpp_Token *start_token = get_first_token_at_line(buffer, tokens, line); - Cpp_Token *brace_token = token; - - if (start_token->type == CPP_TOKEN_PARENTHESE_OPEN){ - if (start_token == tokens.tokens){ - found_safe_start_position = 1; - } - else{ - token = start_token-1; - } - } - else{ - int close = 0; - - for (token = brace_token; token >= start_token; --token){ - switch(token->type){ - case CPP_TOKEN_PARENTHESE_CLOSE: - case CPP_TOKEN_BRACKET_CLOSE: - case CPP_TOKEN_BRACE_CLOSE: - close = token->type; - goto out_of_loop2; - } - } - out_of_loop2:; - - switch (close){ - case 0: token = start_token; found_safe_start_position = 1; break; - - case CPP_TOKEN_PARENTHESE_CLOSE: - token = seek_matching_token_backwards(tokens, token-1, - CPP_TOKEN_PARENTHESE_OPEN, - CPP_TOKEN_PARENTHESE_CLOSE); - break; - - case CPP_TOKEN_BRACKET_CLOSE: - token = seek_matching_token_backwards(tokens, token-1, - CPP_TOKEN_BRACKET_OPEN, - CPP_TOKEN_BRACKET_CLOSE); - break; - - case CPP_TOKEN_BRACE_CLOSE: - token = seek_matching_token_backwards(tokens, token-1, - CPP_TOKEN_BRACE_OPEN, - CPP_TOKEN_BRACE_CLOSE); - break; - } - } - } while(found_safe_start_position == 0); - - // NOTE(allen): Shift the array so that line_i can just operate in - // it's natural value range. - indent_marks -= line_start; - - i32 line_i = buffer_get_line_index(buffer, token->start); - - if (line_i > line_start){ - line_i = line_start; - } - - i32 next_line_start = buffer->line_starts[line_i+1]; - switch (token->type){ - case CPP_TOKEN_BRACKET_OPEN: indent.current_indent += tab_width; break; - case CPP_TOKEN_BRACE_OPEN: indent.current_indent += tab_width; break; - } - - indent.previous_line_indent = indent.current_indent; - Cpp_Token T; - Cpp_Token prev_token = *token; - ++token; - - for (; line_i < line_end; ++token){ - if (token < tokens.tokens + tokens.count){ - T = *token; - } - else{ - T.type = CPP_TOKEN_EOF; - T.start = buffer_size(buffer); - T.flags = 0; - } - - for (; T.start >= next_line_start && line_i < line_end;){ - if (line_i+1 < buffer->line_count){ - next_line_start = buffer->line_starts[line_i+1]; - } - else{ - next_line_start = buffer_size(buffer); - } - - // TODO(allen): Since this is called in one place we can probably go back - // to directly passing in next_line_start and this_line_start. - i32 this_indent = compute_this_indent(buffer, indent, T, prev_token, line_i, tab_width); - - if (line_i >= line_start){ - indent_marks[line_i] = this_indent; - } - ++line_i; - - indent.previous_line_indent = this_indent; - } - - switch (T.type){ - case CPP_TOKEN_BRACKET_OPEN: indent.current_indent += 4; break; - case CPP_TOKEN_BRACKET_CLOSE: indent.current_indent -= 4; break; - case CPP_TOKEN_BRACE_OPEN: indent.current_indent += 4; break; - case CPP_TOKEN_BRACE_CLOSE: indent.current_indent -= 4; break; - - case CPP_TOKEN_PARENTHESE_OPEN: - if (!(T.flags & CPP_TFLAG_PP_BODY)){ - if (indent.paren_nesting < ArrayCount(indent.paren_anchor_indent)){ - i32 line = buffer_get_line_index(buffer, T.start); - i32 start = buffer->line_starts[line]; - i32 char_pos = T.start - start; - - Hard_Start_Result hard_start = buffer_find_hard_start( - buffer, start, tab_width); - - i32 line_pos = hard_start.char_pos - start; - - indent.paren_anchor_indent[indent.paren_nesting] = - char_pos - line_pos + indent.previous_line_indent + 1; - } - ++indent.paren_nesting; - } - break; - - case CPP_TOKEN_PARENTHESE_CLOSE: - if (!(T.flags & CPP_TFLAG_PP_BODY)){ - --indent.paren_nesting; - } - break; - } - prev_token = T; - } - - // NOTE(allen): Unshift the indent_marks array so that the return value - // is the exact starting point of the array that was actually allocated. - indent_marks += line_start; - - return(indent_marks); -} - -internal Make_Batch_Result -make_batch_from_indent_marks(Partition *part, Buffer *buffer, i32 line_start, i32 line_end, - i32 *indent_marks, Indent_Options opts){ - - Make_Batch_Result result = {0}; - - i32 edit_max = line_end - line_start; - i32 edit_count = 0; - - Buffer_Edit *edits = push_array(part, Buffer_Edit, edit_max); - - char *str_base = (char*)part->base + part->pos; - i32 str_size = 0; - - // NOTE(allen): Shift the array so that line_i can just operate in - // it's natural value range. - indent_marks -= line_start; - - for (i32 line_i = line_start; line_i < line_end; ++line_i){ - i32 start = buffer->line_starts[line_i]; - Hard_Start_Result hard_start = - buffer_find_hard_start(buffer, start, opts.tab_width); - - i32 correct_indentation = indent_marks[line_i]; - if (hard_start.all_whitespace && opts.empty_blank_lines) correct_indentation = 0; - if (correct_indentation == -1) correct_indentation = hard_start.indent_pos; - - if ((hard_start.all_whitespace && hard_start.char_pos > start) || - !hard_start.all_space || correct_indentation != hard_start.indent_pos){ - Buffer_Edit new_edit; - new_edit.str_start = str_size; - str_size += correct_indentation; - char *str = push_array(part, char, correct_indentation); - i32 j = 0; - if (opts.use_tabs){ - i32 i = 0; - for (; i + opts.tab_width <= correct_indentation; i += opts.tab_width) str[j++] = '\t'; - for (; i < correct_indentation; ++i) str[j++] = ' '; - } - else{ - for (; j < correct_indentation; ++j) str[j] = ' '; - } - new_edit.len = j; - new_edit.start = start; - new_edit.end = hard_start.char_pos; - edits[edit_count++] = new_edit; - } - - Assert(edit_count <= edit_max); - } - - result.str_base = str_base; - result.str_size = str_size; - - result.edits = edits; - result.edit_max = edit_max; - result.edit_count = edit_count; - - return(result); -} - -internal void -view_auto_tab_tokens(System_Functions *system, Models *models, - View *view, i32 start, i32 end, Indent_Options opts){ -#if BUFFER_EXPERIMENT_SCALPEL <= 0 - Editing_File *file = view->file_data.file; - Mem_Options *mem = &models->mem; - Partition *part = &mem->part; - Buffer *buffer = &file->state.buffer; - - Assert(file && !file->is_dummy); - Cpp_Token_Stack tokens = file->state.token_stack; - Assert(tokens.tokens); - - i32 line_start = buffer_get_line_index(buffer, start); - i32 line_end = buffer_get_line_index(buffer, end) + 1; - - Temp_Memory temp = begin_temp_memory(part); - - i32 *indent_marks = - get_line_indentation_marks(part, buffer, tokens, line_start, line_end, opts.tab_width); - - Make_Batch_Result batch = - make_batch_from_indent_marks(part, buffer, line_start, line_end, indent_marks, opts); - - if (batch.edit_count > 0){ - Assert(buffer_batch_debug_sort_check(batch.edits, batch.edit_count)); - - // NOTE(allen): computing edit spec, doing batch edit - Buffer_Edit *inverse_array = push_array(part, Buffer_Edit, batch.edit_count); - Assert(inverse_array); - - char *inv_str = (char*)part->base + part->pos; - Edit_Spec spec = - file_compute_whitespace_edit(mem, file, view->recent->cursor.pos, - batch.edits, batch.str_base, batch.str_size, - inverse_array, inv_str, part->max - part->pos, batch.edit_count); - - file_do_white_batch_edit(system, models, view->file_data.file, spec, hist_normal); - } - end_temp_memory(temp); - - { - i32 start = view->recent->cursor.pos; - Hard_Start_Result hard_start = buffer_find_hard_start(buffer, start, 4); - - view_cursor_move(view, hard_start.char_pos); - } -#endif -} - -struct Get_Link_Result{ - b32 in_link; - i32 index; -}; - -internal u32* -style_get_color(Style *style, Cpp_Token token){ - u32 *result; - if (token.flags & CPP_TFLAG_IS_KEYWORD){ - if (token.type == CPP_TOKEN_BOOLEAN_CONSTANT){ - result = &style->main.bool_constant_color; - } - else{ - result = &style->main.keyword_color; - } - } - else if(token.flags & CPP_TFLAG_PP_DIRECTIVE){ - result = &style->main.preproc_color; - } - else{ - switch (token.type){ - case CPP_TOKEN_COMMENT: - result = &style->main.comment_color; - break; - - case CPP_TOKEN_STRING_CONSTANT: - result = &style->main.str_constant_color; - break; - - case CPP_TOKEN_CHARACTER_CONSTANT: - result = &style->main.char_constant_color; - break; - - case CPP_TOKEN_INTEGER_CONSTANT: - result = &style->main.int_constant_color; - break; - - case CPP_TOKEN_FLOATING_CONSTANT: - result = &style->main.float_constant_color; - break; - - case CPP_TOKEN_INCLUDE_FILE: - result = &style->main.include_color; - break; - - default: - result = &style->main.default_color; - break; - } - } - return result; -} - -inline f32 -view_compute_max_target_y(i32 lowest_line, i32 line_height, f32 view_height){ - f32 max_target_y = ((lowest_line+.5f)*line_height) - view_height*.5f; - max_target_y = clamp_bottom(0.f, max_target_y); - return(max_target_y); -} - -internal f32 -view_compute_max_target_y(View *view){ - i32 lowest_line = view_compute_lowest_line(view); - i32 line_height = view->font_height; - f32 view_height = view_file_height(view); - f32 max_target_y = view_compute_max_target_y(lowest_line, line_height, view_height); - return(max_target_y); -} - -internal void -remeasure_file_view(System_Functions *system, View *view){ - if (file_is_ready(view->file_data.file)){ - Relative_Scrolling relative = view_get_relative_scrolling(view); - view_measure_wraps(&view->persistent.models->mem.general, view); - view_cursor_move(view, view->recent->cursor.pos); - view->recent->preferred_x = view_get_cursor_x(view); - view_set_relative_scrolling(view, relative); - } -} - -inline void -view_show_menu(View *view, Command_Map *gui_map){ - view->map = gui_map; - view->showing_ui = VUI_Menu; - view->current_scroll = &view->gui_scroll; -} - -inline void -view_show_config(View *view, Command_Map *gui_map){ - view->map = gui_map; - view->showing_ui = VUI_Config; - view->current_scroll = &view->gui_scroll; -} - -inline void -view_show_interactive(System_Functions *system, View *view, - Command_Map *gui_map, Interactive_Action action, - Interactive_Interaction interaction, String query){ - - Models *models = view->persistent.models; - - view->showing_ui = VUI_Interactive; - view->action = action; - view->interaction = interaction; - view->dest = make_fixed_width_string(view->dest_); - view->list_i = 0; - view->current_scroll = &view->gui_scroll; - - view->map = gui_map; - - hot_directory_clean_end(&models->hot_directory); - hot_directory_reload(system, &models->hot_directory, &models->working_set); -} - -inline void -view_show_theme(View *view, Command_Map *gui_map){ - view->map = gui_map; - view->showing_ui = VUI_Theme; - view->color_mode = CV_Mode_Library; - view->color = super_color_create(0xFF000000); - view->current_color_editing = 0; - view->current_scroll = &view->gui_scroll; -} - -inline void -view_show_file(View *view){ - Editing_File *file = view->file_data.file; - if (file){ - view->map = get_map(view->persistent.models, file->settings.base_map_id); - } - else{ - view->map = get_map(view->persistent.models, mapid_global); - } - view->showing_ui = VUI_None; - view->current_scroll = &view->recent->scroll; -} - -internal void -view_save_file(System_Functions *system, Models *models, - Editing_File *file, View *view, String filename, b32 save_as){ - Mem_Options *mem = &models->mem; - Working_Set *working_set = &models->working_set; - - if (!file){ - if (view){ - file = view->file_data.file; - } - else{ - file = working_set_lookup_file(working_set, filename); - } - } - - if (file && buffer_get_sync(file) != SYNC_GOOD){ - if (file_save(system, mem, file, filename.str)){ - if (save_as){ - file_set_name(working_set, file, filename.str); - } - } - } -} - -internal void -view_new_file(System_Functions *system, Models *models, - View *view, String string){ - Working_Set *working_set = &models->working_set; - General_Memory *general = &models->mem.general; - - Editing_File *file = working_set_alloc_always(working_set, general); - file_create_empty(system, models, file, string.str); - working_set_add(system, working_set, file, general); - - view_set_file(view, file, models); - view_show_file(view); - view->map = get_map(models, file->settings.base_map_id); - - Hook_Function *new_file_fnc = models->hooks[hook_new_file]; - if (new_file_fnc){ - models->buffer_param_indices[models->buffer_param_count++] = file->id.id; - new_file_fnc(&models->app_links); - models->buffer_param_count = 0; - file->settings.is_initialized = 1; - } - -#if BUFFER_EXPERIMENT_SCALPEL <= 0 - if (file->settings.tokens_exist){ - file_first_lex_parallel(system, general, file); - } -#endif -} - -internal void -init_normal_file(System_Functions *system, Models *models, Editing_File *file, - char *buffer, i32 size){ - - General_Memory *general = &models->mem.general; - - String val = make_string(buffer, size); - file_create_from_string(system, models, file, file->name.source_path.str, val); - - if (file->settings.tokens_exist){ - file_first_lex_parallel(system, general, file); - } - - for (View_Iter iter = file_view_iter_init(&models->layout, file, 0); - file_view_iter_good(iter); - iter = file_view_iter_next(iter)){ - view_measure_wraps(general, iter.view); - } -} - -internal void -view_open_file(System_Functions *system, Models *models, - View *view, String filename){ - Working_Set *working_set = &models->working_set; - General_Memory *general = &models->mem.general; - Partition *part = &models->mem.part; - - Editing_File *file = working_set_contains(system, working_set, filename); - - if (file == 0){ - File_Loading loading = system->file_load_begin(filename.str); - - if (loading.exists){ - Temp_Memory temp = begin_temp_memory(part); - char *buffer = push_array(part, char, loading.size); - - if (system->file_load_end(loading, buffer)){ - file = working_set_alloc_always(working_set, general); - if (file){ - file_init_strings(file); - file_set_name(working_set, file, filename.str); - working_set_add(system, working_set, file, general); - - init_normal_file(system, models, file, - buffer, loading.size); - } - } - - end_temp_memory(temp); - } - } - - if (file){ - if (view){ - view_set_file(view, file, models); - } - } -} - -internal void -kill_file(System_Functions *system, Models *models, - Editing_File *file, String string){ - Working_Set *working_set = &models->working_set; - - if (!file && string.str){ - file = working_set_lookup_file(working_set, string); - if (!file){ - file = working_set_contains(system, working_set, string); - } - } - - if (file && !file->settings.never_kill){ - working_set_remove(system, working_set, file->name.source_path); - file_close(system, &models->mem.general, file); - working_set_free_file(&models->working_set, file); - - File_Node *used = &models->working_set.used_sentinel; - File_Node *node = used->next; - for (View_Iter iter = file_view_iter_init(&models->layout, file, 0); - file_view_iter_good(iter); - iter = file_view_iter_next(iter)){ - if (node != used){ - iter.view->file_data.file = 0; - view_set_file(iter.view, (Editing_File*)node, models); - node = node->next; - } - else{ - iter.view->file_data.file = 0; - view_set_file(iter.view, 0, models); - } - } - } -} - -internal void -try_kill_file(System_Functions *system, Models *models, - Editing_File *file, View *view, String string){ - Working_Set *working_set = &models->working_set; - - if (!file && string.str){ - file = working_set_lookup_file(working_set, string); - if (!file){ - file = working_set_contains(system, working_set, string); - } - } - - if (file && !file->settings.never_kill){ - if (buffer_needs_save(file)){ - if (view == 0){ - view = models->layout.panels[models->layout.active_panel].view; - } - view_show_interactive(system, view, &models->map_ui, - IAct_Sure_To_Kill, IInt_Sure_To_Kill, - make_lit_string("Are you sure?")); - copy(&view->dest, file->name.live_name); - } - else{ - kill_file(system, models, file, string_zero()); - view_show_file(view); - } - } -} - -internal void -interactive_view_complete(System_Functions *system, View *view, String dest, i32 user_action){ - Models *models = view->persistent.models; - Editing_File *old_file = view->file_data.file; - - switch (view->action){ - case IAct_Open: - view_open_file(system, models, view, dest); - touch_file(&models->working_set, old_file); - view_show_file(view); - break; - - case IAct_Save_As: - view_save_file(system, models, 0, view, dest, 1); - view_show_file(view); - break; - - case IAct_New: - if (dest.size > 0 && !char_is_slash(dest.str[dest.size-1])){ - view_new_file(system, models, view, dest); - view_show_file(view); - }break; - - case IAct_Switch: - { - touch_file(&models->working_set, old_file); - - Editing_File *file = 0; - String string = dest; - - file = working_set_lookup_file(&models->working_set, string); - if (!file){ - file = working_set_contains(system, &models->working_set, string); - } - if (file){ - view_set_file(view, file, models); - } - view_show_file(view); - } - break; - - case IAct_Kill: - try_kill_file(system, models, 0, 0, dest); - break; - - case IAct_Sure_To_Close: - switch (user_action){ - case 0: - models->keep_playing = 0; - break; - - case 1: - view_show_file(view); - break; - - case 2: - // TODO(allen): Save all and close. - break; - } - break; - - case IAct_Sure_To_Kill: - switch (user_action){ - case 0: - kill_file(system, models, 0, dest); - view_show_file(view); - break; - - case 1: - view_show_file(view); - break; - - case 2: - view_save_file(system, models, 0, 0, dest, 0); - kill_file(system, models, 0, dest); - view_show_file(view); - break; - } - break; - } -} - -#if 0 -internal void -update_highlighting(View *view){ - View *file_view = view->hot_file_view; - if (!file_view){ - view->highlight = {}; - return; - } - - Editing_File *file = file_view->file; - if (!file || !file_is_ready(file)){ - view->highlight = {}; - return; - } - - Models *models = view->persistent.models; - - Style *style = &models->style; - i32 pos = view_get_cursor_pos(file_view); - char c = buffer_get_char(&file->state.buffer, pos); - - if (c == '\r'){ - view->highlight.ids[0] = - raw_ptr_dif(&style->main.special_character_color, style); - } - - else if (file->state.tokens_complete){ - Cpp_Token_Stack *tokens = &file->state.token_stack; - Cpp_Get_Token_Result result = cpp_get_token(tokens, pos); - Cpp_Token token = tokens->tokens[result.token_index]; - if (!result.in_whitespace){ - u32 *color = style_get_color(style, token); - view->highlight.ids[0] = raw_ptr_dif(color, style); - if (token.type == CPP_TOKEN_JUNK){ - view->highlight.ids[1] = - raw_ptr_dif(&style->main.highlight_junk_color, style); - } - else if (char_is_whitespace(c)){ - view->highlight.ids[1] = - raw_ptr_dif(&style->main.highlight_white_color, style); - } - else{ - view->highlight.ids[1] = 0; - } - } - else{ - view->highlight.ids[0] = 0; - view->highlight.ids[1] = - raw_ptr_dif(&style->main.highlight_white_color, style); - } - } - - else{ - if (char_is_whitespace(c)){ - view->highlight.ids[0] = 0; - view->highlight.ids[1] = - raw_ptr_dif(&style->main.highlight_white_color, style); - } - else{ - view->highlight.ids[0] = - raw_ptr_dif(&style->main.default_color, style); - view->highlight.ids[1] = 0; - } - } - - if (file_view->show_temp_highlight){ - view->highlight.ids[2] = - raw_ptr_dif(&style->main.highlight_color, style); - view->highlight.ids[3] = - raw_ptr_dif(&style->main.at_highlight_color, style); - } - else if (file->state.paste_effect.tick_down > 0){ - view->highlight.ids[2] = - raw_ptr_dif(&style->main.paste_color, style); - view->highlight.ids[3] = 0; - } - else{ - view->highlight.ids[2] = 0; - view->highlight.ids[3] = 0; - } -} -#endif - -struct File_Bar{ - f32 pos_x, pos_y; - f32 text_shift_x, text_shift_y; - i32_Rect rect; - i16 font_id; -}; - -internal void -intbar_draw_string(Render_Target *target, File_Bar *bar, String str, u32 char_color){ - i16 font_id = bar->font_id; - draw_string(target, font_id, str, - (i32)(bar->pos_x + bar->text_shift_x), - (i32)(bar->pos_y + bar->text_shift_y), - char_color); - bar->pos_x += font_string_width(target, font_id, str); -} - -internal void -view_reinit_scrolling(View *view){ - Editing_File *file = view->file_data.file; - f32 w, h; - f32 cursor_x, cursor_y; - f32 target_x, target_y; - - view->reinit_scrolling = 0; - - target_x = 0; - target_y = 0; - - if (file && file_is_ready(file)){ - cursor_x = view_get_cursor_x(view); - cursor_y = view_get_cursor_y(view); - - w = view_file_width(view); - h = view_file_height(view); - - if (cursor_x >= target_x + w){ - target_x = (f32)(cursor_x - w*.5f); - } - - target_y = clamp_bottom(0.f, (f32)FLOOR32(cursor_y - h*.5f)); - } - - view->recent->scroll.target_y = target_y; - view->recent->scroll.scroll_y = target_y; - view->recent->scroll.prev_target_y = -1000.f; - - view->recent->scroll.target_x = target_x; - view->recent->scroll.scroll_x = target_x; - view->recent->scroll.prev_target_x = -1000.f; -} - -enum CursorScroll_State{ - CursorScroll_NoChange = 0x0, - CursorScroll_Cursor = 0x1, - CursorScroll_Scroll = 0x2, - CursorScroll_ContextChange = 0x4 -}; - -internal u32 -view_get_cursor_scroll_change_state(View *view){ - u32 result = 0; - i32 pos = 0; - Scroll_Context context = {0}; - - if (view->gui_target.did_file){ - pos = view_get_cursor_pos(view); - if ((view->prev_cursor_pos != pos)){ - result |= CursorScroll_Cursor; - } - } - - if (view->current_scroll){ - if (!gui_scroll_eq(view->current_scroll, &view->gui_target.scroll_original)){ - result |= CursorScroll_Scroll; - } - } - - if (context.mode == VUI_None){ - context.file = view->file_data.file; - } - else{ - context.file = view->prev_context.file; - } - context.scroll = view->gui_target.scroll_id; - context.mode = view->showing_ui; - - if (!context_eq(view->prev_context, context)){ - result |= CursorScroll_ContextChange; - } - - return(result); -} - -internal void -view_begin_cursor_scroll_updates(View *view){ - if (view->file_data.file && view->file_data.file == view->prev_context.file){ - Assert(view->prev_cursor_pos == view_get_cursor_pos(view)); - } - - view->prev_context.file = view->file_data.file; - view->prev_context.scroll = view->gui_target.scroll_id; - view->prev_context.mode = view->showing_ui; -} - -internal void -view_end_cursor_scroll_updates(View *view){ - i32 cursor_scroll_state = - view_get_cursor_scroll_change_state(view); - - switch (cursor_scroll_state){ - case CursorScroll_NoChange:break; - - case CursorScroll_Cursor: - case CursorScroll_Cursor|CursorScroll_Scroll: - view_move_view_to_cursor(view, view->current_scroll); - gui_post_scroll_vars(&view->gui_target, view->current_scroll, view->scroll_region); - break; - - case CursorScroll_Scroll: - view_move_cursor_to_view(view); - gui_post_scroll_vars(&view->gui_target, view->current_scroll, view->scroll_region); - break; - } - - if (cursor_scroll_state & CursorScroll_ContextChange){ - view->current_scroll->scroll_y = view->current_scroll->target_y; - view->current_scroll->scroll_x = view->current_scroll->target_x; - gui_post_scroll_vars(&view->gui_target, view->current_scroll, view->scroll_region); - } - - if (view->gui_target.did_file){ - view->prev_cursor_pos = view_get_cursor_pos(view); - } -} - -internal b32 -file_step(View *view, i32_Rect region, Input_Summary *user_input, b32 is_active){ - i32 is_animating = 0; - Editing_File *file = view->file_data.file; - if (file && !file->is_loading){ - f32 max_visible_y = view_file_height(view); - f32 max_x = view_file_width(view); - - GUI_Scroll_Vars scroll_vars = *view->current_scroll; - - if (file->state.paste_effect.tick_down > 0){ - --file->state.paste_effect.tick_down; - is_animating = 1; - } - - if (user_input->mouse.press_l && is_active){ - f32 rx = (f32)(user_input->mouse.x - region.x0); - f32 ry = (f32)(user_input->mouse.y - region.y0); - - if (ry >= 0){ - view_set_widget(view, FWIDG_NONE); - if (rx >= 0 && rx < max_x && ry >= 0 && ry < max_visible_y){ - view_cursor_move(view, rx + scroll_vars.scroll_x, ry + scroll_vars.scroll_y, 1); - view->mode = view_mode_zero(); - } - } - } - if (!is_active) view_set_widget(view, FWIDG_NONE); - } - - return(is_animating); -} - -internal void -do_widget(View *view, GUI_Target *target){ - Query_Slot *slot; - Query_Bar *bar; - - for (slot = view->query_set.used_slot; slot != 0; slot = slot->next){ - bar = slot->query_bar; - gui_do_text_field(target, bar->prompt, bar->string); - } -} - -struct Exhaustive_File_Loop{ - char front_name_[256]; - char full_path_[256]; - String front_name, full_path; - - Absolutes absolutes; - - File_Info *infos; - i32 count, r; -}; - -struct Exhaustive_File_Info{ - File_Info *info; - String message; - b8 is_folder; - b8 name_match; - b8 is_loaded; -}; - -internal void -begin_exhaustive_loop(Exhaustive_File_Loop *loop, Hot_Directory *hdir){ - loop->front_name = make_fixed_width_string(loop->front_name_); - loop->full_path = make_fixed_width_string(loop->full_path_); - - loop->infos = hdir->file_list.infos; - loop->count = hdir->file_list.count; - - get_front_of_directory(&loop->front_name, hdir->string); - get_absolutes(loop->front_name, &loop->absolutes, 1, 1); - get_path_of_directory(&loop->full_path, hdir->string); - loop->r = loop->full_path.size; -} - -internal Exhaustive_File_Info -get_exhaustive_info(System_Functions *system, Working_Set *working_set, Exhaustive_File_Loop *loop, i32 i){ - persist String message_loaded = make_lit_string(" LOADED"); - persist String message_unsaved = make_lit_string(" LOADED *"); - persist String message_unsynced = make_lit_string(" LOADED !"); - - Exhaustive_File_Info result = {0}; - Editing_File *file = 0; - - result.info = loop->infos + i; - loop->full_path.size = loop->r; - append(&loop->full_path, result.info->filename); - terminate_with_null(&loop->full_path); - file = working_set_contains(system, working_set, loop->full_path); - - result.is_folder = (result.info->folder != 0); - result.name_match = (filename_match(loop->front_name, &loop->absolutes, result.info->filename, 0) != 0); - result.is_loaded = (file != 0 && file_is_ready(file)); - - result.message = string_zero(); - if (result.is_loaded){ - switch (buffer_get_sync(file)){ - case SYNC_GOOD: result.message = message_loaded; break; - case SYNC_BEHIND_OS: result.message = message_unsynced; break; - case SYNC_UNSAVED: result.message = message_unsaved; break; - } - } - - return(result); -} - -struct Style_Color_Edit{ - Style_Tag target; - Style_Tag fore; - Style_Tag back; - String text; -}; - -static Style_Color_Edit colors_to_edit[] = { - {Stag_Back, Stag_Default, Stag_Back, make_lit_string("Background")}, - {Stag_Margin, Stag_Default, Stag_Margin, make_lit_string("Margin")}, - {Stag_Margin_Hover, Stag_Default, Stag_Margin_Hover, make_lit_string("Margin Hover")}, - {Stag_Margin_Active, Stag_Default, Stag_Margin_Active, make_lit_string("Margin Active")}, - - {Stag_Cursor, Stag_At_Cursor, Stag_Cursor, make_lit_string("Cursor")}, - {Stag_At_Cursor, Stag_At_Cursor, Stag_Cursor, make_lit_string("Text At Cursor")}, - {Stag_Mark, Stag_Mark, Stag_Back, make_lit_string("Mark")}, - - {Stag_Highlight, Stag_At_Highlight, Stag_Highlight, make_lit_string("Highlight")}, - {Stag_At_Highlight, Stag_At_Highlight, Stag_Highlight, make_lit_string("Text At Highlight")}, - - {Stag_Default, Stag_Default, Stag_Back, make_lit_string("Text Default")}, - {Stag_Comment, Stag_Comment, Stag_Back, make_lit_string("Comment")}, - {Stag_Keyword, Stag_Keyword, Stag_Back, make_lit_string("Keyword")}, - {Stag_Str_Constant, Stag_Str_Constant, Stag_Back, make_lit_string("String Constant")}, - {Stag_Char_Constant, Stag_Char_Constant, Stag_Back, make_lit_string("Character Constant")}, - {Stag_Int_Constant, Stag_Int_Constant, Stag_Back, make_lit_string("Integer Constant")}, - {Stag_Float_Constant, Stag_Float_Constant, Stag_Back, make_lit_string("Float Constant")}, - {Stag_Bool_Constant, Stag_Bool_Constant, Stag_Back, make_lit_string("Boolean Constant")}, - {Stag_Preproc, Stag_Preproc, Stag_Back, make_lit_string("Preprocessor")}, - {Stag_Special_Character, Stag_Special_Character, Stag_Back, make_lit_string("Special Character")}, - - {Stag_Highlight_Junk, Stag_Default, Stag_Highlight_Junk, make_lit_string("Junk Highlight")}, - {Stag_Highlight_White, Stag_Default, Stag_Highlight_White, make_lit_string("Whitespace Highlight")}, - - {Stag_Paste, Stag_Paste, Stag_Back, make_lit_string("Paste Color")}, - - {Stag_Bar, Stag_Base, Stag_Bar, make_lit_string("Bar")}, - {Stag_Base, Stag_Base, Stag_Bar, make_lit_string("Bar Text")}, - {Stag_Pop1, Stag_Pop1, Stag_Bar, make_lit_string("Bar Pop 1")}, - {Stag_Pop2, Stag_Pop2, Stag_Bar, make_lit_string("Bar Pop 2")}, -}; - -struct Single_Line_Input_Step{ - b8 hit_newline; - b8 hit_ctrl_newline; - b8 hit_a_character; - b8 hit_backspace; - b8 hit_esc; - b8 made_a_change; - b8 did_command; - b8 no_file_match; -}; - -enum Single_Line_Input_Type{ - SINGLE_LINE_STRING, - SINGLE_LINE_FILE -}; - -struct Single_Line_Mode{ - Single_Line_Input_Type type; - String *string; - Hot_Directory *hot_directory; - b32 fast_folder_select; - b32 try_to_match; - b32 case_sensitive; -}; - -internal Single_Line_Input_Step -app_single_line_input_core(System_Functions *system, Working_Set *working_set, - Key_Event_Data key, Single_Line_Mode mode){ - Single_Line_Input_Step result = {0}; - - if (key.keycode == key_back){ - result.hit_backspace = 1; - if (mode.string->size > 0){ - result.made_a_change = 1; - --mode.string->size; - switch (mode.type){ - case SINGLE_LINE_STRING: - { - mode.string->str[mode.string->size] = 0; - }break; - - case SINGLE_LINE_FILE: - { - char end_character = mode.string->str[mode.string->size]; - if (char_is_slash(end_character)){ - mode.string->size = reverse_seek_slash(*mode.string) + 1; - mode.string->str[mode.string->size] = 0; - hot_directory_set(system, mode.hot_directory, *mode.string, working_set); - } - else{ - mode.string->str[mode.string->size] = 0; - } - }break; - } - } - } - - else if (key.character == '\n' || key.character == '\t'){ - // NOTE(allen): do nothing! - } - - else if (key.keycode == key_esc){ - result.hit_esc = 1; - result.made_a_change = 1; - } - - else if (key.character){ - result.hit_a_character = 1; - if (!key.modifiers[MDFR_CONTROL_INDEX] && - !key.modifiers[MDFR_ALT_INDEX]){ - if (mode.string->size+1 < mode.string->memory_size){ - u8 new_character = (u8)key.character; - mode.string->str[mode.string->size] = new_character; - mode.string->size++; - mode.string->str[mode.string->size] = 0; - if (mode.type == SINGLE_LINE_FILE && char_is_slash(new_character)){ - hot_directory_set(system, mode.hot_directory, *mode.string, working_set); - } - result.made_a_change = 1; - } - } - else{ - result.did_command = 1; - result.made_a_change = 1; - } - } - - return result; -} - -inline Single_Line_Input_Step -app_single_line_input_step(System_Functions *system, Key_Event_Data key, String *string){ - Single_Line_Mode mode = {}; - mode.type = SINGLE_LINE_STRING; - mode.string = string; - return app_single_line_input_core(system, 0, key, mode); -} - -inline Single_Line_Input_Step -app_single_file_input_step(System_Functions *system, - Working_Set *working_set, Key_Event_Data key, - String *string, Hot_Directory *hot_directory, - b32 fast_folder_select, b32 try_to_match, b32 case_sensitive){ - Single_Line_Mode mode = {}; - mode.type = SINGLE_LINE_FILE; - mode.string = string; - mode.hot_directory = hot_directory; - mode.fast_folder_select = fast_folder_select; - mode.try_to_match = try_to_match; - mode.case_sensitive = case_sensitive; - return app_single_line_input_core(system, working_set, key, mode); -} - -inline Single_Line_Input_Step -app_single_number_input_step(System_Functions *system, Key_Event_Data key, String *string){ - Single_Line_Input_Step result = {}; - Single_Line_Mode mode = {}; - mode.type = SINGLE_LINE_STRING; - mode.string = string; - - char c = (char)key.character; - if (c == 0 || c == '\n' || char_is_numeric(c)) - result = app_single_line_input_core(system, 0, key, mode); - return result; -} - -struct View_Step_Result{ - b32 animating; - b32 consume_keys; - b32 consume_esc; -}; - -internal View_Step_Result -step_file_view(System_Functions *system, View *view, View *active_view, Input_Summary input){ - View_Step_Result result = {0}; - GUI_Target *target = &view->gui_target; - Models *models = view->persistent.models; - Key_Summary keys = input.keys; - - b32 show_scrollbar = !view->hide_scrollbar; - - view->current_scroll = 0; - - if (view->showing_ui != VUI_None){ - b32 did_esc = 0; - Key_Event_Data key; - i32 i; - - for (i = 0; i < keys.count; ++i){ - key = get_single_key(&keys, i); - if (key.keycode == key_esc){ - did_esc = 1; - break; - } - } - - if (did_esc){ - view_show_file(view); - result.consume_esc = 1; - } - } - - gui_begin_top_level(target, input); - { - gui_do_top_bar(target); - do_widget(view, target); - - if (view->showing_ui == VUI_None){ - - gui_begin_serial_section(target); - { - f32 delta = 9.f * view->font_height; - GUI_id scroll_context = {0}; - scroll_context.id[1] = view->showing_ui; - scroll_context.id[0] = (u64)(view->file_data.file); - - view->current_scroll = &view->recent->scroll; - gui_get_scroll_vars(target, scroll_context, - &view->recent->scroll, &view->scroll_region); - - gui_begin_scrollable(target, scroll_context, view->recent->scroll, - delta, show_scrollbar); - gui_do_file(target); - gui_end_scrollable(target); - } - gui_end_serial_section(target); - } - else{ - switch (view->showing_ui){ - case VUI_Menu: - { - view->current_scroll = &view->gui_scroll; - - String message = make_lit_string("Menu"); - String empty_string = {0}; - GUI_id id = {0}; - id.id[1] = VUI_Menu; - - gui_do_text_field(target, message, empty_string); - - id.id[0] = 0; - message = make_lit_string("Theme"); - if (gui_do_fixed_option(target, id, message, 0)){ - view_show_theme(view, view->map); - } - - id.id[0] = 1; - message = make_lit_string("Config"); - if (gui_do_fixed_option(target, id, message, 0)){ - view_show_config(view, view->map); - } - }break; - - case VUI_Config: - { - view->current_scroll = &view->gui_scroll; - - String message = make_lit_string("Config"); - String empty_string = {0}; - GUI_id id = {0}; - id.id[1] = VUI_Config; - - gui_do_text_field(target, message, empty_string); - - id.id[0] = 0; - message = make_lit_string("Left Ctrl + Left Alt = AltGr"); - if (gui_do_fixed_option_checkbox(target, id, message, 0, (b8)models->settings.lctrl_lalt_is_altgr)){ - models->settings.lctrl_lalt_is_altgr = !models->settings.lctrl_lalt_is_altgr; - } - }break; - - case VUI_Theme: - { - view->current_scroll = &view->gui_scroll; - - if (view != active_view){ - view->hot_file_view = active_view; - } - - String message = {0}; - String empty_string = {0}; - - GUI_id id = {0}; - id.id[1] = VUI_Theme + ((u64)view->color_mode << 32); - - GUI_id scroll_context = {0}; - scroll_context.id[0] = 0; - scroll_context.id[1] = VUI_Theme + ((u64)view->color_mode << 32); - - switch (view->color_mode){ - case CV_Mode_Library: - message = make_lit_string("Current Theme - Click to Edit"); - gui_do_text_field(target, message, empty_string); - - id.id[0] = (u64)(main_style(models)); - if (gui_do_style_preview(target, id, 0)){ - view->color_mode = CV_Mode_Adjusting; - } - - message = make_lit_string("Set Font"); - id.id[0] = (u64)(&models->global_font); - if (gui_do_button(target, id, message)){ - view->color_mode = CV_Mode_Font; - } - - message = make_lit_string("Theme Library - Click to Select"); - gui_do_text_field(target, message, empty_string); - - view->current_scroll = &view->gui_scroll; - gui_get_scroll_vars(target, scroll_context, &view->gui_scroll, &view->scroll_region); - gui_begin_scrollable(target, scroll_context, view->gui_scroll, - 9.f * view->font_height, show_scrollbar); - - { - i32 count = models->styles.count; - Style *style; - i32 i; - - for (i = 1; i < count; ++i, ++style){ - style = get_style(models, i); - id.id[0] = (u64)(style); - if (gui_do_style_preview(target, id, i)){ - style_copy(main_style(models), style); - } - } - } - - gui_end_scrollable(target); - break; - - case CV_Mode_Font: - { - Font_Set *font_set = models->font_set; - Font_Info *info = 0; - - i16 i = 1, count = (i16)models->font_set->count + 1; - i16 font_id = 0, new_font_id = 0; - - String message = make_lit_string("Back"); - - id.id[0] = 0; - if (gui_do_button(target, id, message)){ - view->color_mode = CV_Mode_Library; - } - - font_id = models->global_font.font_id; - new_font_id = font_id; - - for (i = 1; i < count; ++i){ - info = get_font_info(font_set, i); - id.id[0] = (u64)i; - if (i != font_id){ - if (gui_do_font_button(target, id, i, info->name)){ - new_font_id = i; - } - } - else{ - char message_space[256]; - message = make_fixed_width_string(message_space); - copy(&message, make_lit_string("currently selected: ")); - append(&message, info->name); - gui_do_font_button(target, id, i, message); - } - } - - models->global_font.font_id = (i16)(new_font_id); - }break; - - case CV_Mode_Adjusting: - { - Style *style = main_style(models); - u32 *edit_color = 0; - u32 *fore = 0, *back = 0; - i32 i = 0; - - String message = make_lit_string("Back"); - - id.id[0] = 0; - if (gui_do_button(target, id, message)){ - view->color_mode = CV_Mode_Library; - } - - view->current_scroll = &view->gui_scroll; - gui_get_scroll_vars(target, scroll_context, &view->gui_scroll, &view->scroll_region); - gui_begin_scrollable(target, scroll_context, view->gui_scroll, - 9.f * view->font_height, show_scrollbar); - - i32 next_color_editing = view->current_color_editing; - - for (i = 0; i < ArrayCount(colors_to_edit); ++i){ - edit_color = style_index_by_tag(&style->main, colors_to_edit[i].target); - id.id[0] = (u64)(edit_color); - - fore = style_index_by_tag(&style->main, colors_to_edit[i].fore); - back = style_index_by_tag(&style->main, colors_to_edit[i].back); - - if (gui_do_color_button(target, id, *fore, *back, colors_to_edit[i].text)){ - next_color_editing = i; - view->color_cursor = 0; - } - - if (view->current_color_editing == i){ - GUI_Item_Update update = {0}; - char text_space[7]; - String text = make_fixed_width_string(text_space); - - color_to_hexstr(*edit_color, &text); - if (gui_do_text_with_cursor(target, view->color_cursor, text, &update)){ - b32 r = 0; - i32 j = 0; - - for (j = 0; j < keys.count; ++j){ - i16 key = keys.keys[j].keycode; - switch (key){ - case key_left: --view->color_cursor; r = 1; result.consume_keys = 1; break; - case key_right: ++view->color_cursor; r = 1; result.consume_keys = 1; break; - - case key_up: - if (next_color_editing > 0){ - --next_color_editing; - } - result.consume_keys = 1; - break; - - case key_down: - if (next_color_editing <= ArrayCount(colors_to_edit)-1){ - ++next_color_editing; - } - result.consume_keys = 1; - break; - - default: - if ((key >= '0' && key <= '9') || (key >= 'a' && key <= 'f') || (key >= 'A' && key <= 'F')){ - text.str[view->color_cursor] = (char)key; - r = 1; - result.consume_keys = 1; - } - break; - } - - if (view->color_cursor < 0) view->color_cursor = 0; - if (view->color_cursor >= 6) view->color_cursor = 5; - } - - if (r){ - hexstr_to_color(text, edit_color); - gui_rollback(target, &update); - gui_do_text_with_cursor(target, view->color_cursor, text, 0); - } - } - } - } - - if (view->current_color_editing != next_color_editing){ - view->current_color_editing = next_color_editing; - view->color_cursor = 0; - } - - gui_end_scrollable(target); - }break; - } - }break; - - case VUI_Interactive: - { - b32 complete = 0; - char comp_dest_space[1024]; - String comp_dest = make_fixed_width_string(comp_dest_space); - i32 comp_action = 0; - - view->current_scroll = &view->gui_scroll; - - GUI_id id = {0}; - id.id[1] = VUI_Interactive + ((u64)view->interaction << 32); - - GUI_id scroll_context = {0}; - scroll_context.id[1] = VUI_Interactive + ((u64)view->interaction << 32); - - switch (view->interaction){ - case IInt_Sys_File_List: - { - b32 use_item_in_list = 1; - b32 activate_directly = 0; - - if (view->action == IAct_Save_As || view->action == IAct_New){ - use_item_in_list = 0; - } - - String message = {0}; - switch (view->action){ - case IAct_Open: message = make_lit_string("Open: "); break; - case IAct_Save_As: message = make_lit_string("Save As: "); break; - case IAct_New: message = make_lit_string("New: "); break; - } - - Exhaustive_File_Loop loop; - Exhaustive_File_Info file_info; - - GUI_Item_Update update = {0}; - Hot_Directory *hdir = &models->hot_directory; - b32 do_new_directory = 0; - b32 snap_into_view = 0; - i32 i = 0; - - { - Single_Line_Input_Step step = {0}; - Key_Event_Data key = {0}; - i32 i; - - for (i = 0; i < keys.count; ++i){ - key = get_single_key(&keys, i); - step = app_single_file_input_step(system, &models->working_set, key, - &hdir->string, hdir, 1, 1, 0); - if (step.made_a_change){ - view->list_i = 0; - result.consume_keys = 1; - } - if (!use_item_in_list && (key.keycode == '\n' || key.keycode == '\t')){ - activate_directly = 1; - result.consume_keys = 1; - } - } - } - - gui_do_text_field(target, message, hdir->string); - - scroll_context.id[0] = (u64)(hdir); - if (gui_get_scroll_vars(target, scroll_context, - &view->gui_scroll, &view->scroll_region)){ - snap_into_view = 1; - } - gui_begin_scrollable(target, scroll_context, view->gui_scroll, - 9.f * view->font_height, show_scrollbar); - - id.id[0] = (u64)(hdir) + 1; - - if (gui_begin_list(target, id, view->list_i, 0, - snap_into_view, &update)){ - // TODO(allen): Allow me to handle key consumption correctly here! - gui_standard_list(target, id, view->current_scroll, view->scroll_region, - &keys, &view->list_i, &update); - } - - { - begin_exhaustive_loop(&loop, hdir); - for (i = 0; i < loop.count; ++i){ - file_info = get_exhaustive_info(system, &models->working_set, &loop, i); - - if (file_info.name_match){ - id.id[0] = (u64)(file_info.info); - if (gui_do_file_option(target, id, file_info.info->filename, - file_info.is_folder, file_info.message)){ - if (file_info.is_folder){ - set_last_folder(&hdir->string, file_info.info->filename, '/'); - do_new_directory = 1; - } - else if (use_item_in_list){ - complete = 1; - copy(&comp_dest, loop.full_path); - } - } - } - } - } - - gui_end_list(target); - - if (activate_directly){ - complete = 1; - copy(&comp_dest, hdir->string); - } - - if (do_new_directory){ - hot_directory_reload(system, hdir, &models->working_set); - } - - gui_end_scrollable(target); - }break; - - case IInt_Live_File_List: - { - b32 snap_into_view = 0; - persist String message_unsaved = make_lit_string(" *"); - persist String message_unsynced = make_lit_string(" !"); - - String message = {0}; - switch (view->action){ - case IAct_Switch: message = make_lit_string("Switch: "); break; - case IAct_Kill: message = make_lit_string("Kill: "); break; - } - - Absolutes absolutes; - Editing_File *file; - Working_Set *working_set = &models->working_set; - Editing_Layout *layout = &models->layout; - GUI_Item_Update update = {0}; - - { - Single_Line_Input_Step step; - Key_Event_Data key; - i32 i; - for (i = 0; i < keys.count; ++i){ - key = get_single_key(&keys, i); - step = app_single_line_input_step(system, key, &view->dest); - if (step.made_a_change){ - view->list_i = 0; - result.consume_keys = 1; - } - } - } - - get_absolutes(view->dest, &absolutes, 1, 1); - - gui_do_text_field(target, message, view->dest); - - scroll_context.id[0] = (u64)(working_set); - if (gui_get_scroll_vars(target, scroll_context, - &view->gui_scroll, &view->scroll_region)){ - snap_into_view = 1; - } - gui_begin_scrollable(target, scroll_context, view->gui_scroll, - 9.f * view->font_height, show_scrollbar); - - id.id[0] = (u64)(working_set) + 1; - if (gui_begin_list(target, id, view->list_i, - 0, snap_into_view, &update)){ - gui_standard_list(target, id, view->current_scroll, view->scroll_region, - &keys, &view->list_i, &update); - } - - { - Partition *part = &models->mem.part; - Temp_Memory temp = begin_temp_memory(part); - File_Node *node = 0, *used_nodes = 0; - Editing_File **reserved_files = 0; - i32 reserved_top = 0, i = 0; - View_Iter iter = {0}; - - partition_align(part, sizeof(i32)); - reserved_files = (Editing_File**)partition_current(part); - - used_nodes = &working_set->used_sentinel; - for (dll_items(node, used_nodes)){ - file = (Editing_File*)node; - Assert(!file->is_dummy); - - if (filename_match(view->dest, &absolutes, file->name.live_name, 1)){ - iter = file_view_iter_init(layout, file, 0); - if (file_view_iter_good(iter)){ - reserved_files[reserved_top++] = file; - } - else{ - if (file->name.live_name.str[0] == '*'){ - reserved_files[reserved_top++] = file; - } - else{ - message = string_zero(); - switch (buffer_get_sync(file)){ - case SYNC_BEHIND_OS: message = message_unsynced; break; - case SYNC_UNSAVED: message = message_unsaved; break; - } - - id.id[0] = (u64)(file); - if (gui_do_file_option(target, id, file->name.live_name, 0, message)){ - complete = 1; - copy(&comp_dest, file->name.live_name); - } - } - } - } - } - - for (i = 0; i < reserved_top; ++i){ - file = reserved_files[i]; - - message = string_zero(); - switch (buffer_get_sync(file)){ - case SYNC_BEHIND_OS: message = message_unsynced; break; - case SYNC_UNSAVED: message = message_unsaved; break; - } - - id.id[0] = (u64)(file); - if (gui_do_file_option(target, id, file->name.live_name, 0, message)){ - complete = 1; - copy(&comp_dest, file->name.live_name); - } - } - - end_temp_memory(temp); - } - - gui_end_list(target); - - gui_end_scrollable(target); - }break; - - case IInt_Sure_To_Close: - { - i32 action = -1; - - String empty_str = {0}; - String message = make_lit_string("There is one or more files unsaved changes, close anyway?"); - - gui_do_text_field(target, message, empty_str); - - id.id[0] = (u64)('y'); - message = make_lit_string("(Y)es"); - if (gui_do_fixed_option(target, id, message, 'y')){ - action = 0; - } - - id.id[0] = (u64)('n'); - message = make_lit_string("(N)o"); - if (gui_do_fixed_option(target, id, message, 'n')){ - action = 1; - } - - if (action != -1){ - complete = 1; - copy(&comp_dest, view->dest); - comp_action = action; - } - }break; - - case IInt_Sure_To_Kill: - { - i32 action = -1; - - String empty_str = {0}; - String message = make_lit_string("There are unsaved changes, close anyway?"); - - gui_do_text_field(target, message, empty_str); - - id.id[0] = (u64)('y'); - message = make_lit_string("(Y)es"); - if (gui_do_fixed_option(target, id, message, 'y')){ - action = 0; - } - - id.id[0] = (u64)('n'); - message = make_lit_string("(N)o"); - if (gui_do_fixed_option(target, id, message, 'n')){ - action = 1; - } - - id.id[0] = (u64)('s'); - message = make_lit_string("(S)ave and kill"); - if (gui_do_fixed_option(target, id, message, 's')){ - action = 2; - } - - if (action != -1){ - complete = 1; - copy(&comp_dest, view->dest); - comp_action = action; - } - }break; - } - - if (complete){ - terminate_with_null(&comp_dest); - interactive_view_complete(system, view, comp_dest, comp_action); - } - }break; - } - } - } - gui_end_top_level(target); - - result.animating = target->animating; - return(result); -} - -internal f32 -view_get_scroll_y(View *view){ - f32 v; - if (view->showing_ui == VUI_None){ - v = view->recent->scroll.scroll_y; - } - else{ - v = view->gui_scroll.scroll_y; - } - return(v); -} - -internal void -click_button_input(GUI_Target *target, GUI_Session *session, Input_Summary *user_input, - GUI_Interactive *b, b32 *is_animating){ - i32 mx = user_input->mouse.x; - i32 my = user_input->mouse.y; - - if (hit_check(mx, my, session->rect)){ - target->hover = b->id; - if (user_input->mouse.press_l){ - target->mouse_hot = b->id; - *is_animating = 1; - } - if (user_input->mouse.release_l && gui_id_eq(target->mouse_hot, b->id)){ - target->active = b->id; - target->mouse_hot = gui_id_zero(); - *is_animating = 1; - } - } - else if (gui_id_eq(target->hover, b->id)){ - target->hover = gui_id_zero(); - } -} - -internal b32 -scroll_button_input(GUI_Target *target, GUI_Session *session, Input_Summary *user_input, - GUI_id id, b32 *is_animating){ - b32 result = 0; - i32 mx = user_input->mouse.x; - i32 my = user_input->mouse.y; - - if (hit_check(mx, my, session->rect)){ - target->hover = id; - if (user_input->mouse.l){ - target->mouse_hot = id; - gui_activate_scrolling(target); - *is_animating = 1; - result = 1; - } - } - else if (gui_id_eq(target->hover, id)){ - target->hover = gui_id_zero(); - } - return(result); -} - -struct Input_Process_Result{ - GUI_Scroll_Vars vars; - i32_Rect region; - b32 is_animating; -}; - -internal Input_Process_Result -do_input_file_view(System_Functions *system, - View *view, i32_Rect rect, b32 is_active, - Input_Summary *user_input, - GUI_Scroll_Vars vars, i32_Rect region){ - Input_Process_Result result = {0}; - b32 is_file_scroll = 0; - - GUI_Session gui_session = {0}; - GUI_Header *h = 0; - GUI_Target *target = &view->gui_target; - GUI_Interpret_Result interpret_result = {0}; - - result.vars = vars; - result.region = region; - - target->active = gui_id_zero(); - - if (target->push.pos > 0){ - gui_session_init(&gui_session, target, rect, view->font_height); - - for (h = (GUI_Header*)target->push.base; - h->type; - h = NextHeader(h)){ - interpret_result = gui_interpret(target, &gui_session, h, - result.vars, result.region); - - if (interpret_result.has_region){ - result.region = interpret_result.region; - } - - switch (h->type){ - case guicom_file_option: - case guicom_fixed_option: - case guicom_fixed_option_checkbox: - { - GUI_Interactive *b = (GUI_Interactive*)h; - - if (interpret_result.auto_activate){ - target->auto_hot = gui_id_zero(); - target->active = b->id; - result.is_animating = 1; - } - else if (interpret_result.auto_hot){ - if (!gui_id_eq(target->auto_hot, b->id)){ - target->auto_hot = b->id; - result.is_animating = 1; - } - } - }break; - } - - if (interpret_result.has_info){ - switch (h->type){ - case guicom_top_bar: break; - - case guicom_file: - { - f32 new_max_y = view_compute_max_target_y(view); - - view->file_region = gui_session.rect; - result.vars.max_y = new_max_y; - - if (view->reinit_scrolling){ - view_reinit_scrolling(view); - result.is_animating = 1; - } - if (file_step(view, gui_session.rect, user_input, is_active)){ - result.is_animating = 1; - } - is_file_scroll = 1; - }break; - - case guicom_color_button: - case guicom_font_button: - case guicom_button: - case guicom_file_option: - case guicom_style_preview: - { - GUI_Interactive *b = (GUI_Interactive*)h; - - click_button_input(target, &gui_session, user_input, b, &result.is_animating); - }break; - - case guicom_fixed_option: - case guicom_fixed_option_checkbox: - { - GUI_Interactive *b = (GUI_Interactive*)h; - - click_button_input(target, &gui_session, user_input, b, &result.is_animating); - - { - Key_Event_Data key; - Key_Summary *keys = &user_input->keys; - - void *ptr = (b + 1); - String string; - char activation_key; - - i32 i, count; - - string = gui_read_string(&ptr); - activation_key = *(char*)ptr; - - count = keys->count; - for (i = 0; i < count; ++i){ - key = get_single_key(keys, i); - if (char_to_upper(key.character) == char_to_upper(activation_key)){ - target->active = b->id; - result.is_animating = 1; - break; - } - } - } - }break; - - case guicom_scrollable_slider: - { - GUI_id id = gui_id_scrollbar_slider(); - i32 mx = user_input->mouse.x; - i32 my = user_input->mouse.y; - f32 v = 0; - - if (hit_check(mx, my, gui_session.rect)){ - target->hover = id; - if (user_input->mouse.press_l){ - target->mouse_hot = id; - result.is_animating = 1; - } - } - else if (gui_id_eq(target->hover, id)){ - target->hover = gui_id_zero(); - } - - if (gui_id_eq(target->mouse_hot, id)){ - v = unlerp(gui_session.scroll_top, (f32)my, - gui_session.scroll_bottom); - v = clamp(0.f, v, 1.f); - result.vars.target_y = lerp(0.f, v, result.vars.max_y); - - gui_activate_scrolling(target); - result.is_animating = 1; - } - } - // NOTE(allen): NO BREAK HERE!! - - case guicom_scrollable_invisible: - { - if (user_input->mouse.wheel != 0){ - result.vars.target_y += user_input->mouse.wheel*target->delta; - - result.vars.target_y = - clamp(0.f, result.vars.target_y, result.vars.max_y); - gui_activate_scrolling(target); - result.is_animating = 1; - } - }break; - - case guicom_scrollable_top: - { - GUI_id id = gui_id_scrollbar_top(); - - if (scroll_button_input(target, &gui_session, user_input, id, &result.is_animating)){ - result.vars.target_y -= target->delta * 0.25f; - result.vars.target_y = clamp_bottom(0.f, result.vars.target_y); - } - }break; - - case guicom_scrollable_bottom: - { - GUI_id id = gui_id_scrollbar_bottom(); - - if (scroll_button_input(target, &gui_session, user_input, id, &result.is_animating)){ - result.vars.target_y += target->delta * 0.25f; - result.vars.target_y = clamp_top(0.f, result.vars.max_y); - } - }break; - - case guicom_end_scrollable_section: - { - if (!is_file_scroll){ - f32 new_max_y = gui_session.suggested_max_y; - result.vars.max_y = new_max_y; - } - }break; - } - } - } - - if (!user_input->mouse.l){ - if (!gui_id_is_null(target->mouse_hot)){ - target->mouse_hot = gui_id_zero(); - result.is_animating = 1; - } - } - - { - GUI_Scroll_Vars scroll_vars = result.vars; - b32 is_new_target = 0; - if (scroll_vars.target_x != scroll_vars.prev_target_x) is_new_target = 1; - if (scroll_vars.target_y != scroll_vars.prev_target_y) is_new_target = 1; - - if (view->persistent.models->scroll_rule(scroll_vars.target_x, scroll_vars.target_y, - &scroll_vars.scroll_x, &scroll_vars.scroll_y, - (view->persistent.id) + 1, is_new_target)){ - result.is_animating = 1; - } - - scroll_vars.prev_target_x = scroll_vars.target_x; - scroll_vars.prev_target_y = scroll_vars.target_y; - - result.vars = scroll_vars; - } - } - - return(result); -} - -internal i32 -draw_file_loaded(View *view, i32_Rect rect, b32 is_active, Render_Target *target){ - Models *models = view->persistent.models; - Editing_File *file = view->file_data.file; - Style *style = main_style(models); - i32 line_height = view->font_height; - - i32 max_x = rect.x1 - rect.x0; - i32 max_y = rect.y1 - rect.y0 + line_height; - - Assert(file && !file->is_dummy && buffer_good(&file->state.buffer)); - - b32 tokens_use = 0; - Cpp_Token_Stack token_stack = {}; - if (file){ - tokens_use = file->state.tokens_complete && (file->state.token_stack.count > 0); - token_stack = file->state.token_stack; - } - - Partition *part = &models->mem.part; - - Temp_Memory temp = begin_temp_memory(part); - - partition_align(part, 4); - i32 max = partition_remaining(part) / sizeof(Buffer_Render_Item); - Buffer_Render_Item *items = push_array(part, Buffer_Render_Item, max); - - i16 font_id = models->global_font.font_id; - Render_Font *font = get_font_info(models->font_set, font_id)->font; - float *advance_data = 0; - if (font) advance_data = font->advance_data; - - i32 count; - Full_Cursor render_cursor; - Buffer_Render_Options opts = {}; - - f32 *wraps = view->file_data.line_wrap_y; - f32 scroll_x = view->recent->scroll.scroll_x; - f32 scroll_y = view->recent->scroll.scroll_y; - - { - render_cursor = buffer_get_start_cursor(&file->state.buffer, wraps, scroll_y, - !view->file_data.unwrapped_lines, (f32)max_x, advance_data, (f32)line_height); - - view->recent->scroll_i = render_cursor.pos; - - buffer_get_render_data(&file->state.buffer, items, max, &count, - (f32)rect.x0, (f32)rect.y0, - scroll_x, scroll_y, render_cursor, - !view->file_data.unwrapped_lines, - (f32)max_x, (f32)max_y, - advance_data, (f32)line_height, - opts); - } - - Assert(count > 0); - - i32 cursor_begin, cursor_end; - u32 cursor_color, at_cursor_color; - if (view->file_data.show_temp_highlight){ - cursor_begin = view->file_data.temp_highlight.pos; - cursor_end = view->file_data.temp_highlight_end_pos; - cursor_color = style->main.highlight_color; - at_cursor_color = style->main.at_highlight_color; - } - else{ - cursor_begin = view->recent->cursor.pos; - cursor_end = cursor_begin + 1; - cursor_color = style->main.cursor_color; - at_cursor_color = style->main.at_cursor_color; - } - - i32 token_i = 0; - u32 main_color = style->main.default_color; - u32 special_color = style->main.special_character_color; - if (tokens_use){ - Cpp_Get_Token_Result result = cpp_get_token(&token_stack, items->index); - main_color = *style_get_color(style, token_stack.tokens[result.token_index]); - token_i = result.token_index + 1; - } - - u32 mark_color = style->main.mark_color; - Buffer_Render_Item *item = items; - i32 prev_ind = -1; - u32 highlight_color = 0; - u32 highlight_this_color = 0; - - for (i32 i = 0; i < count; ++i, ++item){ - i32 ind = item->index; - highlight_this_color = 0; - if (tokens_use && ind != prev_ind){ - Cpp_Token current_token = token_stack.tokens[token_i-1]; - - if (token_i < token_stack.count){ - if (ind >= token_stack.tokens[token_i].start){ - main_color = - *style_get_color(style, token_stack.tokens[token_i]); - current_token = token_stack.tokens[token_i]; - ++token_i; - } - else if (ind >= current_token.start + current_token.size){ - main_color = 0xFFFFFFFF; - } - } - - if (current_token.type == CPP_TOKEN_JUNK && - i >= current_token.start && i < current_token.start + current_token.size){ - highlight_color = style->main.highlight_junk_color; - } - else{ - highlight_color = 0; - } - } - - u32 char_color = main_color; - if (item->flags & BRFlag_Special_Character) char_color = special_color; - - f32_Rect char_rect = f32R(item->x0, item->y0, item->x1, item->y1); - if (view->file_data.show_whitespace && highlight_color == 0 && - char_is_whitespace((char)item->glyphid)){ - highlight_this_color = style->main.highlight_white_color; - } - else{ - highlight_this_color = highlight_color; - } - - if (cursor_begin <= ind && ind < cursor_end && (ind != prev_ind || cursor_begin < ind)){ - if (is_active){ - draw_rectangle(target, char_rect, cursor_color); - char_color = at_cursor_color; - } - else{ - if (!view->file_data.show_temp_highlight){ - draw_rectangle_outline(target, char_rect, cursor_color); - } - } - } - else if (highlight_this_color){ - draw_rectangle(target, char_rect, highlight_this_color); - } - - u32 fade_color = 0xFFFF00FF; - f32 fade_amount = 0.f; - - if (file->state.paste_effect.tick_down > 0 && - file->state.paste_effect.start <= ind && - ind < file->state.paste_effect.end){ - fade_color = file->state.paste_effect.color; - fade_amount = (f32)(file->state.paste_effect.tick_down) / file->state.paste_effect.tick_max; - } - - char_color = color_blend(char_color, fade_amount, fade_color); - - if (ind == view->recent->mark && prev_ind != ind){ - draw_rectangle_outline(target, char_rect, mark_color); - } - if (item->glyphid != 0){ - font_draw_glyph(target, font_id, (u8)item->glyphid, - item->x0, item->y0, char_color); - } - prev_ind = ind; - } - - end_temp_memory(temp); - - return(0); -} - -internal void -draw_text_field(Render_Target *target, View *view, i32_Rect rect, String p, String t){ - Models *models = view->persistent.models; - Style *style = main_style(models); - - u32 back_color = style->main.margin_color; - u32 text1_color = style->main.default_color; - u32 text2_color = style->main.file_info_style.pop1_color; - - i32 x = rect.x0; - i32 y = rect.y0 + 2; - - i16 font_id = models->global_font.font_id; - - if (target){ - draw_rectangle(target, rect, back_color); - x = CEIL32(draw_string(target, font_id, p, x, y, text2_color)); - draw_string(target, font_id, t, x, y, text1_color); - } -} - -internal void -draw_text_with_cursor(Render_Target *target, View *view, i32_Rect rect, String s, i32 pos){ - Models *models = view->persistent.models; - Style *style = main_style(models); - - u32 back_color = style->main.margin_color; - u32 text_color = style->main.default_color; - u32 cursor_color = style->main.cursor_color; - u32 at_cursor_color = style->main.at_cursor_color; - - f32 x = (f32)rect.x0; - i32 y = rect.y0 + 2; - - i16 font_id = models->global_font.font_id; - - if (target){ - draw_rectangle(target, rect, back_color); - - if (pos >= 0 && pos < s.size){ - String part1, part2, part3; - i32_Rect cursor_rect; - Render_Font *font = get_font_info(models->font_set, font_id)->font; - - part1 = substr(s, 0, pos); - part2 = substr(s, pos, 1); - part3 = substr(s, pos+1, s.size-pos-1); - - - x = draw_string(target, font_id, part1, FLOOR32(x), y, text_color); - - cursor_rect.x0 = FLOOR32(x); - cursor_rect.x1 = FLOOR32(x) + CEIL32(font->advance_data[s.str[pos]]); - cursor_rect.y0 = y; - cursor_rect.y1 = y + view->font_height; - draw_rectangle(target, cursor_rect, cursor_color); - x = draw_string(target, font_id, part2, FLOOR32(x), y, at_cursor_color); - - draw_string(target, font_id, part3, FLOOR32(x), y, text_color); - } - else{ - draw_string(target, font_id, s, FLOOR32(x), y, text_color); - } - } -} - -internal void -draw_file_bar(Render_Target *target, View *view, Editing_File *file, i32_Rect rect){ - File_Bar bar; - Models *models = view->persistent.models; - Style_Font *font = &models->global_font; - Style *style = main_style(models); - Interactive_Style bar_style = style->main.file_info_style; - - u32 back_color = bar_style.bar_color; - u32 base_color = bar_style.base_color; - u32 pop1_color = bar_style.pop1_color; - u32 pop2_color = bar_style.pop2_color; - - bar.rect = rect; - - if (target){ - bar.font_id = font->font_id; - bar.pos_x = (f32)bar.rect.x0; - bar.pos_y = (f32)bar.rect.y0; - bar.text_shift_y = 2; - bar.text_shift_x = 0; - - draw_rectangle(target, bar.rect, back_color); - if (!file){ - intbar_draw_string(target, &bar, make_lit_string("*NULL*"), base_color); - } - else{ - intbar_draw_string(target, &bar, file->name.live_name, base_color); - intbar_draw_string(target, &bar, make_lit_string(" -"), base_color); - - if (file->is_loading){ - intbar_draw_string(target, &bar, make_lit_string(" loading"), base_color); - } - else{ - char line_number_space[30]; - String line_number = make_fixed_width_string(line_number_space); - append(&line_number, " L#"); - append_int_to_str(view->recent->cursor.line, &line_number); - append(&line_number, " C#"); - append_int_to_str(view->recent->cursor.character, &line_number); - - intbar_draw_string(target, &bar, line_number, base_color); - - intbar_draw_string(target, &bar, make_lit_string(" -"), base_color); - - if (file->settings.dos_write_mode){ - intbar_draw_string(target, &bar, make_lit_string(" dos"), base_color); - } - else{ - intbar_draw_string(target, &bar, make_lit_string(" nix"), base_color); - } - - if (file->state.still_lexing){ - intbar_draw_string(target, &bar, make_lit_string(" parsing"), pop1_color); - } - - if (!file->settings.unimportant){ - switch (buffer_get_sync(file)){ - case SYNC_BEHIND_OS: - { - persist String out_of_sync = make_lit_string(" !"); - intbar_draw_string(target, &bar, out_of_sync, pop2_color); - }break; - - case SYNC_UNSAVED: - { - persist String out_of_sync = make_lit_string(" *"); - intbar_draw_string(target, &bar, out_of_sync, pop2_color); - }break; - } - } - } - } - } -} - -u32 -get_margin_color(i32 active_level, Style *style){ - u32 margin = 0xFFFFFFFF; - - switch (active_level){ - default: - margin = style->main.margin_color; - break; - - case 1: case 2: - margin = style->main.margin_hover_color; - break; - - case 3: case 4: - margin = style->main.margin_active_color; - break; - } - - return(margin); -} - -internal void -draw_color_button(GUI_Target *gui_target, Render_Target *target, View *view, - i32_Rect rect, GUI_id id, u32 fore, u32 back, String text){ - Models *models = view->persistent.models; - - i32 active_level = gui_active_level(gui_target, id); - i16 font_id = models->global_font.font_id; - - if (active_level > 0){ - Swap(u32, back, fore); - } - - draw_rectangle(target, rect, back); - draw_string(target, font_id, text, rect.x0, rect.y0 + 1, fore); -} - -internal void -draw_font_button(GUI_Target *gui_target, Render_Target *target, View *view, - i32_Rect rect, GUI_id id, i16 font_id, String text){ - Models *models = view->persistent.models; - Style *style = main_style(models); - - i32 active_level = gui_active_level(gui_target, id); - - u32 margin = get_margin_color(active_level, style); - u32 back = style->main.back_color; - u32 text_color = style->main.default_color; - - draw_rectangle(target, rect, back); - draw_rectangle_outline(target, rect, margin); - draw_string(target, font_id, text, rect.x0, rect.y0 + 1, text_color); -} - -internal void -draw_fat_option_block(GUI_Target *gui_target, Render_Target *target, View *view, i32_Rect rect, GUI_id id, - String text, String pop, i8 checkbox = -1){ - Models *models = view->persistent.models; - Style *style = main_style(models); - - i32 active_level = gui_active_level(gui_target, id); - i16 font_id = models->global_font.font_id; - - i32_Rect inner = get_inner_rect(rect, 3); - - u32 margin = get_margin_color(active_level, style); - u32 back = style->main.back_color; - u32 text_color = style->main.default_color; - u32 pop_color = style->main.special_character_color; - - i32 h = view->font_height; - i32 x = inner.x0 + 3; - i32 y = inner.y0 + h/2 - 1; - - draw_rectangle(target, inner, back); - draw_margin(target, rect, inner, margin); - - if (checkbox != -1){ - u32 checkbox_color = style->main.margin_active_color; - i32_Rect checkbox_rect = get_inner_rect(inner, (inner.y1 - inner.y0 - h)/2); - checkbox_rect.x1 = checkbox_rect.x0 + (checkbox_rect.y1 - checkbox_rect.y0); - - if (checkbox == 0){ - draw_rectangle_outline(target, checkbox_rect, checkbox_color); - } - else{ - draw_rectangle(target, checkbox_rect, checkbox_color); - } - - x = checkbox_rect.x1 + 3; - } - - x = CEIL32(draw_string(target, font_id, text, x, y, text_color)); - draw_string(target, font_id, pop, x, y, pop_color); -} - -internal void -draw_button(GUI_Target *gui_target, Render_Target *target, View *view, i32_Rect rect, GUI_id id, String text){ - Models *models = view->persistent.models; - Style *style = main_style(models); - - i32 active_level = gui_active_level(gui_target, id); - i16 font_id = models->global_font.font_id; - - i32_Rect inner = get_inner_rect(rect, 3); - - u32 margin = style->main.default_color; - u32 back = get_margin_color(active_level, style); - u32 text_color = style->main.default_color; - - i32 h = view->font_height; - i32 y = inner.y0 + h/2 - 1; - - i32 w = (i32)font_string_width(target, font_id, text); - i32 x = (inner.x1 + inner.x0 - w)/2; - - draw_rectangle(target, inner, back); - draw_rectangle_outline(target, inner, margin); - - draw_string(target, font_id, text, x, y, text_color); -} - -internal void -draw_style_preview(GUI_Target *gui_target, Render_Target *target, View *view, i32_Rect rect, GUI_id id, Style *style){ - Models *models = view->persistent.models; - - i32 active_level = gui_active_level(gui_target, id); - i16 font_id = models->global_font.font_id; - Font_Info *info = get_font_info(models->font_set, font_id); - - i32_Rect inner = get_inner_rect(rect, 3); - - u32 margin_color = get_margin_color(active_level, style); - u32 back = style->main.back_color; - u32 text_color = style->main.default_color; - u32 keyword_color = style->main.keyword_color; - u32 int_constant_color = style->main.int_constant_color; - u32 comment_color = style->main.comment_color; - - draw_margin(target, rect, inner, margin_color); - draw_rectangle(target, inner, back); - - i32 y = inner.y0; - i32 x = inner.x0; - x = CEIL32(draw_string(target, font_id, style->name.str, x, y, text_color)); - i32 font_x = (i32)(inner.x1 - font_string_width(target, font_id, info->name.str)); - if (font_x > x + 10){ - draw_string(target, font_id, info->name.str, font_x, y, text_color); - } - - x = inner.x0; - y += info->height; - x = CEIL32(draw_string(target, font_id, "if", x, y, keyword_color)); - x = CEIL32(draw_string(target, font_id, "(x < ", x, y, text_color)); - x = CEIL32(draw_string(target, font_id, "0", x, y, int_constant_color)); - x = CEIL32(draw_string(target, font_id, ") { x = ", x, y, text_color)); - x = CEIL32(draw_string(target, font_id, "0", x, y, int_constant_color)); - x = CEIL32(draw_string(target, font_id, "; } ", x, y, text_color)); - x = CEIL32(draw_string(target, font_id, "// comment", x, y, comment_color)); - - x = inner.x0; - y += info->height; - draw_string(target, font_id, "[] () {}; * -> +-/ <>= ! && || % ^", x, y, text_color); -} - -internal i32 -do_render_file_view(System_Functions *system, View *view, - View *active, i32_Rect rect, b32 is_active, - Render_Target *target, Input_Summary *user_input){ - - Editing_File *file = view->file_data.file; - i32 result = 0; - - GUI_Session gui_session = {0}; - GUI_Header *h; - GUI_Target *gui_target = &view->gui_target; - GUI_Interpret_Result interpret_result = {0}; - - f32 v; - - if (gui_target->push.pos > 0){ - gui_session_init(&gui_session, gui_target, rect, view->font_height); - - v = view_get_scroll_y(view); - - i32_Rect clip_rect = rect; - draw_push_clip(target, clip_rect); - - for (h = (GUI_Header*)gui_target->push.base; - h->type; - h = NextHeader(h)){ - interpret_result = gui_interpret(gui_target, &gui_session, h, - *view->current_scroll, - view->scroll_region); - - if (interpret_result.has_info){ - if (gui_session.clip_y > clip_rect.y0){ - clip_rect.y0 = gui_session.clip_y; - draw_change_clip(target, clip_rect); - } - - switch (h->type){ - case guicom_top_bar: - { - draw_file_bar(target, view, file, gui_session.rect); - }break; - - case guicom_file: - { - if (view->reinit_scrolling){ - view_reinit_scrolling(view); - } - if (file && file_is_ready(file)){ - result = draw_file_loaded(view, gui_session.rect, is_active, target); - } - }break; - - case guicom_text_field: - { - void *ptr = (h+1); - String p = gui_read_string(&ptr); - String t = gui_read_string(&ptr); - draw_text_field(target, view, gui_session.rect, p, t); - }break; - - case guicom_text_with_cursor: - { - void *ptr = (h+1); - String s = gui_read_string(&ptr); - i32 pos = gui_read_integer(&ptr); - - draw_text_with_cursor(target, view, gui_session.rect, s, pos); - }break; - - case guicom_color_button: - { - GUI_Interactive *b = (GUI_Interactive*)h; - void *ptr = (b + 1); - u32 fore = (u32)gui_read_integer(&ptr); - u32 back = (u32)gui_read_integer(&ptr); - String t = gui_read_string(&ptr); - - draw_color_button(gui_target, target, view, gui_session.rect, b->id, fore, back, t); - }break; - - case guicom_font_button: - { - GUI_Interactive *b = (GUI_Interactive*)h; - void *ptr = (b + 1); - i16 font_id = (i16)gui_read_integer(&ptr); - String t = gui_read_string(&ptr); - - draw_font_button(gui_target, target, view, gui_session.rect, b->id, font_id, t); - }break; - - case guicom_file_option: - { - GUI_Interactive *b = (GUI_Interactive*)h; - void *ptr = (b + 1); - b32 folder = gui_read_integer(&ptr); - String f = gui_read_string(&ptr); - String m = gui_read_string(&ptr); - - if (folder){ - append(&f, system->slash); - } - - draw_fat_option_block(gui_target, target, view, gui_session.rect, b->id, f, m); - }break; - - case guicom_style_preview: - { - GUI_Interactive *b = (GUI_Interactive*)h; - i32 style_index = *(i32*)(b + 1); - Style *style = get_style(view->persistent.models, style_index); - - draw_style_preview(gui_target, target, view, gui_session.rect, b->id, style); - }break; - - case guicom_fixed_option: - case guicom_fixed_option_checkbox: - { - GUI_Interactive *b = (GUI_Interactive*)h; - void *ptr = (b + 1); - String f = gui_read_string(&ptr); - String m = {0}; - i8 status = -1; - if (h->type == guicom_fixed_option_checkbox){ - gui_read_byte(&ptr); - status = (i8)gui_read_byte(&ptr); - } - - draw_fat_option_block(gui_target, target, view, gui_session.rect, b->id, f, m, status); - }break; - - case guicom_button: - { - GUI_Interactive *b = (GUI_Interactive*)h; - void *ptr = (b + 1); - String t = gui_read_string(&ptr); - - draw_button(gui_target, target, view, gui_session.rect, b->id, t); - }break; - - case guicom_scrollable_bar: - { - Models *models = view->persistent.models; - Style *style = main_style(models); - - u32 back; - u32 outline; - - i32_Rect bar = gui_session.rect; - - back = style->main.back_color; - if (is_active){ - outline = style->main.margin_active_color; - } - else{ - outline = style->main.margin_color; - } - - draw_rectangle(target, bar, back); - draw_rectangle_outline(target, bar, outline); - }break; - - case guicom_scrollable_top: - case guicom_scrollable_slider: - case guicom_scrollable_bottom: - { - GUI_id id; - Models *models = view->persistent.models; - Style *style = main_style(models); - i32_Rect box = gui_session.rect; - - i32 active_level; - - u32 back; - u32 outline; - - switch (h->type){ - case guicom_scrollable_top: id = gui_id_scrollbar_top(); break; - case guicom_scrollable_bottom: id = gui_id_scrollbar_bottom(); break; - default: id = gui_id_scrollbar_slider(); break; - } - - active_level = gui_active_level(gui_target, id); - - switch (active_level){ - case 0: back = style->main.back_color; break; - case 1: back = style->main.margin_hover_color; break; - default: back = style->main.margin_active_color; break; - } - - if (is_active){ - outline = style->main.margin_active_color; - } - else{ - outline = style->main.margin_color; - } - - draw_rectangle(target, box, back); - draw_margin(target, box, get_inner_rect(box, 2), outline); - }break; - - case guicom_begin_scrollable_section: - clip_rect.x1 = Min(gui_session.scroll_region.x1, clip_rect.x1); - draw_push_clip(target, clip_rect); - break; - - case guicom_end_scrollable_section: - clip_rect = draw_pop_clip(target); - break; - } - } - } - - draw_pop_clip(target); - } - - return(result); -} - -inline void -file_view_free_buffers(View *view){ - General_Memory *general = &view->persistent.models->mem.general; - if (view->file_data.line_wrap_y){ - general_memory_free(general, view->file_data.line_wrap_y); - view->file_data.line_wrap_y = 0; - } - general_memory_free(general, view->gui_mem); - view->gui_mem = 0; -} - -struct Search_Range{ - Buffer_Type *buffer; - i32 start, size; -}; - -struct Search_Set{ - Search_Range *ranges; - i32 count, max; -}; - -struct Search_Iter{ - String word; - i32 pos; - i32 i; -}; - -struct Search_Match{ - Buffer_Type *buffer; - i32 start, end; - b32 found_match; -}; - -internal void -search_iter_init(General_Memory *general, Search_Iter *iter, i32 size){ - i32 str_max; - - if (iter->word.str == 0){ - str_max = size*2; - iter->word.str = (char*)general_memory_allocate(general, str_max, 0); - iter->word.memory_size = str_max; - } - else if (iter->word.memory_size < size){ - str_max = size*2; - iter->word.str = (char*)general_memory_reallocate_nocopy(general, iter->word.str, str_max, 0); - iter->word.memory_size = str_max; - } - - iter->i = 0; - iter->pos = 0; -} - -internal void -search_set_init(General_Memory *general, Search_Set *set, i32 set_count){ - i32 max; - - if (set->ranges == 0){ - max = set_count*2; - set->ranges = (Search_Range*)general_memory_allocate(general, sizeof(Search_Range)*max, 0); - set->max = max; - } - else if (set->max < set_count){ - max = set_count*2; - set->ranges = (Search_Range*)general_memory_reallocate_nocopy( - general, set->ranges, sizeof(Search_Range)*max, 0); - set->max = max; - } - - set->count = set_count; -} - -internal void -search_hits_table_alloc(General_Memory *general, Table *hits, i32 table_size){ - void *mem; - i32 mem_size; - - mem_size = table_required_mem_size(table_size, sizeof(Offset_String)); - if (hits->hash_array == 0){ - mem = general_memory_allocate(general, mem_size, 0); - } - else{ - mem = general_memory_reallocate_nocopy(general, hits->hash_array, mem_size, 0); - } - table_init_memory(hits, mem, table_size, sizeof(Offset_String)); -} - -internal void -search_hits_init(General_Memory *general, Table *hits, String_Space *str, i32 table_size, i32 str_size){ - void *mem; - i32 mem_size; - - if (hits->hash_array == 0){ - search_hits_table_alloc(general, hits, table_size); - } - else if (hits->max < table_size){ - mem_size = table_required_mem_size(table_size, sizeof(Offset_String)); - mem = general_memory_reallocate_nocopy(general, hits->hash_array, mem_size, 0); - table_init_memory(hits, mem, table_size, sizeof(Offset_String)); - } - - if (str->space == 0){ - str->space = (char*)general_memory_allocate(general, str_size, 0); - str->max = str_size; - } - else if (str->max < str_size){ - str->space = (char*)general_memory_reallocate_nocopy(general, str->space, str_size, 0); - str->max = str_size; - } - - str->pos = str->new_pos = 0; - table_clear(hits); -} - -internal b32 -search_hit_add(General_Memory *general, Table *hits, String_Space *space, char *str, i32 len){ - b32 result; - i32 new_size; - Offset_String ostring; - Table new_hits; - - Assert(len != 0); - - ostring = strspace_append(space, str, len); - if (ostring.size == 0){ - new_size = Max(space->max*2, space->max + len); - space->space = (char*)general_memory_reallocate(general, space->space, space->new_pos, new_size, 0); - ostring = strspace_append(space, str, len); - } - - Assert(ostring.size != 0); - - if (table_at_capacity(hits)){ - search_hits_table_alloc(general, &new_hits, hits->max*2); - table_clear(&new_hits); - table_rehash(hits, &new_hits, space->space, tbl_offset_string_hash, tbl_offset_string_compare); - general_memory_free(general, hits->hash_array); - *hits = new_hits; - } - - if (!table_add(hits, &ostring, space->space, tbl_offset_string_hash, tbl_offset_string_compare)){ - result = 1; - strspace_keep_prev(space); - } - else{ - result = 0; - strspace_discard_prev(space); - } - - return(result); -} - -internal Search_Match -search_next_match(Partition *part, Search_Set *set, Search_Iter *iter_){ - Search_Match result = {}; - Search_Iter iter = *iter_; - Search_Range *range; - Temp_Memory temp; - char *spare; - i32 start_pos, end_pos, count; - - temp = begin_temp_memory(part); - spare = push_array(part, char, iter.word.size); - - count = set->count; - for (; iter.i < count;){ - range = set->ranges + iter.i; - - end_pos = range->start + range->size; - - if (iter.pos + iter.word.size < end_pos){ - start_pos = Max(iter.pos, range->start); - result.start = buffer_find_string(range->buffer, start_pos, end_pos, iter.word.str, iter.word.size, spare); - - if (result.start < end_pos){ - iter.pos = result.start + 1; - if (result.start == 0 || !char_is_alpha_numeric(buffer_get_char(range->buffer, result.start - 1))){ - result.end = buffer_seek_word_right_assume_on_word(range->buffer, result.start); - if (result.end < end_pos){ - result.found_match = 1; - result.buffer = range->buffer; - iter.pos = result.end; - break; - } - } - } - else{ - ++iter.i, iter.pos = 0; - } - } - else{ - ++iter.i, iter.pos = 0; - } - } - end_temp_memory(temp); - - *iter_ = iter; - - return(result); -} - -inline void -view_change_size(General_Memory *general, View *view){ - if (view->file_data.file){ - view_measure_wraps(general, view); - view->recent->cursor = view_compute_cursor_from_pos(view, view->recent->cursor.pos); - } -} - -struct Live_Views{ - View *views; - View free_sentinel; - i32 count, max; -}; - -internal View_And_ID -live_set_alloc_view(Live_Views *live_set, Panel *panel, Models *models){ - View_And_ID result = {}; - - Assert(live_set->count < live_set->max); - ++live_set->count; - - result.view = live_set->free_sentinel.next; - result.id = (i32)(result.view - live_set->views); - Assert(result.id == result.view->persistent.id); - - dll_remove(result.view); - memset(get_view_body(result.view), 0, get_view_size()); - - result.view->in_use = 1; - panel->view = result.view; - result.view->panel = panel; - - result.view->persistent.models = models; - result.view->scrub_max = 1; - result.view->current_scroll = &result.view->recent->scroll; - - init_query_set(&result.view->query_set); - - { - i32 gui_mem_size = Kbytes(32); - void *gui_mem = general_memory_allocate(&models->mem.general, gui_mem_size + 8, 0); - result.view->gui_mem = gui_mem; - gui_mem = advance_to_alignment(gui_mem); - result.view->gui_target.push = make_part(gui_mem, gui_mem_size); - } - - return(result); -} - -inline void -live_set_free_view(System_Functions *system, Live_Views *live_set, View *view){ - Assert(live_set->count > 0); - --live_set->count; - file_view_free_buffers(view); - dll_insert(&live_set->free_sentinel, view); - view->in_use = 0; -} - -// BOTTOM - +/* +* Mr. 4th Dimention - Allen Webster +* +* 19.08.2015 +* +* File editing view for 4coder +* +*/ + +// TOP + +internal i32 +get_or_add_map_index(Models *models, i32 mapid){ + i32 result; + i32 user_map_count = models->user_map_count; + i32 *map_id_table = models->map_id_table; + for (result = 0; result < user_map_count; ++result){ + if (map_id_table[result] == mapid) break; + if (map_id_table[result] == -1){ + map_id_table[result] = mapid; + break; + } + } + return result; +} + +internal i32 +get_map_index(Models *models, i32 mapid){ + i32 result; + i32 user_map_count = models->user_map_count; + i32 *map_id_table = models->map_id_table; + for (result = 0; result < user_map_count; ++result){ + if (map_id_table[result] == mapid) break; + if (map_id_table[result] == 0){ + result = user_map_count; + break; + } + } + return result; +} + +internal Command_Map* +get_map_base(Models *models, i32 mapid, b32 add){ + Command_Map *map = 0; + if (mapid < mapid_global){ + if (add){ + mapid = get_or_add_map_index(models, mapid); + } + else{ + mapid = get_map_index(models, mapid); + } + if (mapid < models->user_map_count){ + map = models->user_maps + mapid; + } + } + else if (mapid == mapid_global) map = &models->map_top; + else if (mapid == mapid_file) map = &models->map_file; + return(map); +} + +internal Command_Map* +get_or_add_map(Models *models, i32 mapid){ + Command_Map *map = get_map_base(models, mapid, 1); + return(map); +} + +internal Command_Map* +get_map(Models *models, i32 mapid){ + Command_Map *map = get_map_base(models, mapid, 0); + return(map); +} + +internal void +map_set_count(Models *models, i32 mapid, i32 count){ + Command_Map *map = get_or_add_map(models, mapid); + Assert(map->commands == 0); + map->count = count; + if (map->max < count){ + map->max = count; + } +} + +internal i32 +map_get_count(Models *models, i32 mapid){ + Command_Map *map = get_or_add_map(models, mapid); + i32 count = map->count; + Assert(map->commands == 0); + return(count); +} + +internal i32 +map_get_max_count(Models *models, i32 mapid){ + Command_Map *map = get_or_add_map(models, mapid); + i32 count = map->max; + return(count); +} + +enum Interactive_Action{ + IAct_Open, + IAct_Save_As, + IAct_New, + IAct_Switch, + IAct_Kill, + IAct_Sure_To_Kill, + IAct_Sure_To_Close +}; + +enum Interactive_Interaction{ + IInt_Sys_File_List, + IInt_Live_File_List, + IInt_Sure_To_Kill, + IInt_Sure_To_Close +}; + +struct View_Mode{ + i32 rewrite; +}; +inline View_Mode +view_mode_zero(){ + View_Mode mode={0}; + return(mode); +} + +enum View_Widget_Type{ + FWIDG_NONE, + FWIDG_TIMELINES, + // never below this + FWIDG_TYPE_COUNT +}; + +struct View_Widget{ + View_Widget_Type type; + i32 height_; + struct{ + b32 undo_line; + b32 history_line; + } timeline; +}; + +enum View_UI{ + VUI_None, + VUI_Theme, + VUI_Interactive, + VUI_Menu, + VUI_Config, +}; + +enum Color_View_Mode{ + CV_Mode_Library, + CV_Mode_Font, + CV_Mode_Adjusting +}; + +struct File_Viewing_Data{ + Editing_File *file; + + Full_Cursor temp_highlight; + i32 temp_highlight_end_pos; + b32 show_temp_highlight; + + b32 unwrapped_lines; + b32 show_whitespace; + b32 file_locked; + + i32 line_count, line_max; + f32 *line_wrap_y; +}; +inline File_Viewing_Data +file_viewing_data_zero(){ + File_Viewing_Data data={0}; + return(data); +} + +struct Recent_File_Data{ + u64 unique_buffer_id; + GUI_Scroll_Vars scroll; + + Full_Cursor cursor; + i32 mark; + f32 preferred_x; + i32 scroll_i; +}; +inline Recent_File_Data +recent_file_data_zero(){ + Recent_File_Data data = {0}; + return(data); +} + +struct Scroll_Context{ + Editing_File *file; + GUI_id scroll; + View_UI mode; +}; +inline b32 +context_eq(Scroll_Context a, Scroll_Context b){ + b32 result = 0; + if (gui_id_eq(a.scroll, b.scroll)){ + if (a.file == b.file){ + if (a.mode == b.mode){ + result = 1; + } + } + } + return(result); +} + +struct View_Persistent{ + i32 id; + + View_Routine_Function *view_routine; + Coroutine *coroutine; + Event_Message message_passing_slot; + + // TODO(allen): eliminate this models pointer: explicitly parameterize. + Models *models; +}; + +struct View{ + View_Persistent persistent; + + View *next, *prev; + Panel *panel; + b32 in_use; + Command_Map *map; + + File_Viewing_Data file_data; + i32 prev_cursor_pos; + Scroll_Context prev_context; + + i32_Rect file_region_prev; + i32_Rect file_region; + + i32_Rect scroll_region; + Recent_File_Data recent[16]; + + GUI_Scroll_Vars *current_scroll; + + View_UI showing_ui; + GUI_Target gui_target; + void *gui_mem; + GUI_Scroll_Vars gui_scroll; + i32 list_i; + + b32 hide_scrollbar; + + // interactive stuff + Interactive_Interaction interaction; + Interactive_Action action; + + char dest_[256]; + String dest; + + // theme stuff + View *hot_file_view; + u32 *palette; + i32 palette_size; + Color_View_Mode color_mode; + Super_Color color; + b32 p4c_only; + Style_Library inspecting_styles; + b8 import_export_check[64]; + i32 import_file_id; + i32 current_color_editing; + i32 color_cursor; + + i32 font_advance; + i32 font_height; + + View_Mode mode, next_mode; + View_Widget widget; + Query_Set query_set; + i32 scrub_max; + + b32 reinit_scrolling; +}; +inline void* +get_view_body(View *view){ + char *result = (char*)view; + result += sizeof(View_Persistent); + return(result); +} +inline i32 +get_view_size(){ + return(sizeof(View) - sizeof(View_Persistent)); +} + +struct View_And_ID{ + View *view; + i32 id; +}; + +#define LockLevel_Open 0 +#define LockLevel_NoWrite 1 +#define LockLevel_NoUpdate 2 + +inline i32 +view_lock_level(View *view){ + i32 result = LockLevel_Open; + File_Viewing_Data *data = &view->file_data; + if (view->showing_ui != VUI_None) result = LockLevel_NoUpdate; + else if (data->file_locked || (data->file && data->file->settings.read_only)) result = LockLevel_NoWrite; + return(result); +} + +inline f32 +view_file_width(View *view){ + i32_Rect file_rect = view->file_region; + f32 result = (f32)(file_rect.x1 - file_rect.x0); + return (result); +} + +inline f32 +view_file_height(View *view){ + i32_Rect file_rect = view->file_region; + f32 result = (f32)(file_rect.y1 - file_rect.y0); + return (result); +} + +struct View_Iter{ + View *view; + + Editing_File *file; + View *skip; + Panel *used_panels; + Panel *panel; +}; + +internal View_Iter +file_view_iter_next(View_Iter iter){ + View *view; + + for (iter.panel = iter.panel->next; iter.panel != iter.used_panels; iter.panel = iter.panel->next){ + view = iter.panel->view; + if (view != iter.skip && (view->file_data.file == iter.file || iter.file == 0)){ + iter.view = view; + break; + } + } + + return(iter); +} + +internal View_Iter +file_view_iter_init(Editing_Layout *layout, Editing_File *file, View *skip){ + View_Iter result; + result.used_panels = &layout->used_sentinel; + result.panel = result.used_panels; + result.file = file; + result.skip = skip; + + result = file_view_iter_next(result); + + return(result); +} + +internal b32 +file_view_iter_good(View_Iter iter){ + b32 result = (iter.panel != iter.used_panels); + return(result); +} + +inline b32 +starts_new_line(u8 character){ + return (character == '\n'); +} + +inline void +file_init_strings(Editing_File *file){ + file->name.source_path = make_fixed_width_string(file->name.source_path_); + file->name.live_name = make_fixed_width_string(file->name.live_name_); + file->name.extension = make_fixed_width_string(file->name.extension_); +} + +inline void +file_set_name(Working_Set *working_set, Editing_File *file, char *filename){ + String f, ext; + + Assert(file->name.live_name.str != 0); + + f = make_string_slowly(filename); + copy_checked(&file->name.source_path, f); + + file->name.live_name.size = 0; + get_front_of_directory(&file->name.live_name, f); + + if (file->name.source_path.size == file->name.live_name.size){ + file->name.extension.size = 0; + } + else{ + ext = file_extension(f); + copy(&file->name.extension, ext); + } + + { + File_Node *node, *used_nodes; + Editing_File *file_ptr; + i32 file_x, original_len; + b32 hit_conflict; + + used_nodes = &working_set->used_sentinel; + original_len = file->name.live_name.size; + hit_conflict = 1; + file_x = 0; + while (hit_conflict){ + hit_conflict = 0; + for (dll_items(node, used_nodes)){ + file_ptr = (Editing_File*)node; + if (file_ptr != file && file_is_ready(file_ptr)){ + if (match(file->name.live_name, file_ptr->name.live_name)){ + ++file_x; + hit_conflict = 1; + break; + } + } + } + + if (hit_conflict){ + file->name.live_name.size = original_len; + append(&file->name.live_name, " <"); + append_int_to_str(file_x, &file->name.live_name); + append(&file->name.live_name, ">"); + } + } + } +} + +inline void +file_synchronize_times(System_Functions *system, Editing_File *file, char *filename){ + u64 stamp = system->file_time_stamp(filename); + if (stamp > 0){ + file->state.last_4ed_write_time = stamp; + file->state.last_4ed_edit_time = stamp; + file->state.last_sys_write_time = stamp; + } + file->state.sync = buffer_get_sync(file); +} + +internal b32 +file_save(System_Functions *system, Mem_Options *mem, Editing_File *file, char *filename){ + b32 result = 0; + + i32 max, size; + b32 dos_write_mode = file->settings.dos_write_mode; + char *data; + Buffer_Type *buffer = &file->state.buffer; + + if (dos_write_mode){ + max = buffer_size(buffer) + buffer->line_count + 1; + } + else{ + max = buffer_size(buffer); + } + + Temp_Memory temp = begin_temp_memory(&mem->part); + char empty = 0; + if (max == 0){ + data = ∅ + } + else{ + data = (char*)push_array(&mem->part, char, max); + } + Assert(data); + + if (dos_write_mode){ + size = buffer_convert_out(buffer, data, max); + } + else{ + size = max; + buffer_stringify(buffer, 0, size, data); + } + + result = system->file_save(filename, data, size); + + file_synchronize_times(system, file, filename); + + end_temp_memory(temp); + + return(result); +} + +inline b32 +file_save_and_set_names(System_Functions *system, Mem_Options *mem, + Working_Set *working_set, Editing_File *file, + char *filename){ + b32 result = 0; + result = file_save(system, mem, file, filename); + if (result){ + file_set_name(working_set, file, filename); + } + return result; +} + +enum File_Bubble_Type{ + BUBBLE_BUFFER = 1, + BUBBLE_STARTS, + BUBBLE_WIDTHS, + BUBBLE_WRAPS, + BUBBLE_TOKENS, + BUBBLE_UNDO_STRING, + BUBBLE_UNDO, + BUBBLE_UNDO_CHILDREN, + // + FILE_BUBBLE_TYPE_END, +}; + +#define GROW_FAILED 0 +#define GROW_NOT_NEEDED 1 +#define GROW_SUCCESS 2 + +internal i32 +file_grow_starts_widths_as_needed(General_Memory *general, Buffer_Type *buffer, i32 additional_lines){ + b32 result = GROW_NOT_NEEDED; + i32 max = buffer->line_max; + i32 count = buffer->line_count; + i32 target_lines = count + additional_lines; + Assert(max == buffer->widths_max); + + if (target_lines > max || max == 0){ + max = LargeRoundUp(target_lines + max, Kbytes(1)); + + f32 *new_widths = (f32*)general_memory_reallocate( + general, buffer->line_widths, + sizeof(f32)*count, sizeof(f32)*max, BUBBLE_WIDTHS); + + i32 *new_lines = (i32*)general_memory_reallocate( + general, buffer->line_starts, + sizeof(i32)*count, sizeof(i32)*max, BUBBLE_STARTS); + + if (new_lines){ + buffer->line_starts = new_lines; + buffer->line_max = max; + } + if (new_widths){ + buffer->line_widths = new_widths; + buffer->widths_max = max; + } + if (new_lines && new_widths){ + result = GROW_SUCCESS; + } + else{ + result = GROW_FAILED; + } + } + + return(result); +} + +internal void +file_measure_starts_widths(System_Functions *system, General_Memory *general, + Buffer_Type *buffer, float *advance_data){ + if (!buffer->line_starts){ + i32 max = buffer->line_max = Kbytes(1); + buffer->line_starts = (i32*)general_memory_allocate(general, max*sizeof(i32), BUBBLE_STARTS); + TentativeAssert(buffer->line_starts); + // TODO(allen): when unable to allocate? + } + if (!buffer->line_widths){ + i32 max = buffer->widths_max = Kbytes(1); + buffer->line_widths = (f32*)general_memory_allocate(general, max*sizeof(f32), BUBBLE_WIDTHS); + TentativeAssert(buffer->line_starts); + // TODO(allen): when unable to allocate? + } + + Buffer_Measure_Starts state = {}; + while (buffer_measure_starts_widths(&state, buffer, advance_data)){ + i32 count = state.count; + i32 max = buffer->line_max; + max = ((max + 1) << 1); + + { + i32 *new_lines = (i32*)general_memory_reallocate( + general, buffer->line_starts, sizeof(i32)*count, sizeof(i32)*max, BUBBLE_STARTS); + + // TODO(allen): when unable to grow? + TentativeAssert(new_lines); + buffer->line_starts = new_lines; + buffer->line_max = max; + } + + { + f32 *new_lines = (f32*) + general_memory_reallocate(general, buffer->line_widths, + sizeof(f32)*count, sizeof(f32)*max, BUBBLE_WIDTHS); + + // TODO(allen): when unable to grow? + TentativeAssert(new_lines); + buffer->line_widths = new_lines; + buffer->widths_max = max; + } + + } + buffer->line_count = state.count; + buffer->widths_count = state.count; +} + +struct Opaque_Font_Advance{ + void *data; + int stride; +}; + +inline Opaque_Font_Advance +get_opaque_font_advance(Render_Font *font){ + Opaque_Font_Advance result; + result.data = (char*)font->chardata + OffsetOfPtr(font->chardata, xadvance); + result.stride = sizeof(*font->chardata); + return result; +} + +inline i32 +view_wrapped_line_span(f32 line_width, f32 max_width){ + i32 line_count = CEIL32(line_width / max_width); + if (line_count == 0) line_count = 1; + return line_count; +} + +internal i32 +view_compute_lowest_line(View *view){ + i32 lowest_line = 0; + i32 last_line = view->file_data.line_count - 1; + if (last_line > 0){ + if (view->file_data.unwrapped_lines){ + lowest_line = last_line; + } + else{ + f32 wrap_y = view->file_data.line_wrap_y[last_line]; + lowest_line = FLOOR32(wrap_y / view->font_height); + f32 max_width = view_file_width(view); + + Editing_File *file = view->file_data.file; + Assert(!file->is_dummy); + f32 width = file->state.buffer.line_widths[last_line]; + i32 line_span = view_wrapped_line_span(width, max_width); + lowest_line += line_span - 1; + } + } + return lowest_line; +} + +internal void +view_measure_wraps(General_Memory *general, View *view){ + Buffer_Type *buffer; + + buffer = &view->file_data.file->state.buffer; + i32 line_count = buffer->line_count; + + if (view->file_data.line_max < line_count){ + i32 max = view->file_data.line_max = LargeRoundUp(line_count, Kbytes(1)); + if (view->file_data.line_wrap_y){ + view->file_data.line_wrap_y = (f32*) + general_memory_reallocate_nocopy(general, view->file_data.line_wrap_y, sizeof(f32)*max, BUBBLE_WRAPS); + } + else{ + view->file_data.line_wrap_y = (f32*) + general_memory_allocate(general, sizeof(f32)*max, BUBBLE_WRAPS); + } + } + + f32 line_height = (f32)view->font_height; + f32 max_width = view_file_width(view); + buffer_measure_wrap_y(buffer, view->file_data.line_wrap_y, line_height, max_width); + + view->file_data.line_count = line_count; +} + +internal void +file_create_from_string(System_Functions *system, Models *models, + Editing_File *file, char *filename, String val, b8 read_only = 0){ + + Font_Set *font_set = models->font_set; + Working_Set *working_set = &models->working_set; + General_Memory *general = &models->mem.general; + Partition *part = &models->mem.part; + Buffer_Init_Type init; + i32 page_size, scratch_size, init_success; + + file->state = editing_file_state_zero(); + + init = buffer_begin_init(&file->state.buffer, val.str, val.size); + for (; buffer_init_need_more(&init); ){ + page_size = buffer_init_page_size(&init); + page_size = LargeRoundUp(page_size, Kbytes(4)); + if (page_size < Kbytes(4)) page_size = Kbytes(4); + void *data = general_memory_allocate(general, page_size, BUBBLE_BUFFER); + buffer_init_provide_page(&init, data, page_size); + } + + scratch_size = partition_remaining(part); + Assert(scratch_size > 0); + init_success = buffer_end_init(&init, part->base + part->pos, scratch_size); + AllowLocal(init_success); + Assert(init_success); + + if (buffer_size(&file->state.buffer) < val.size){ + file->settings.dos_write_mode = 1; + } + + file_init_strings(file); + file_set_name(working_set, file, (char*)filename); + + file->state.font_id = models->global_font.font_id; + + file_synchronize_times(system, file, filename); + + Render_Font *font = get_font_info(font_set, file->state.font_id)->font; + float *advance_data = 0; + if (font) advance_data = font->advance_data; + file_measure_starts_widths(system, general, &file->state.buffer, advance_data); + + file->settings.read_only = read_only; + if (!read_only){ + // TODO(allen): Redo undo system (if you don't mind the pun) + i32 request_size = Kbytes(64); + file->state.undo.undo.max = request_size; + file->state.undo.undo.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); + file->state.undo.undo.edit_max = request_size / sizeof(Edit_Step); + file->state.undo.undo.edits = (Edit_Step*)general_memory_allocate(general, request_size, BUBBLE_UNDO); + + file->state.undo.redo.max = request_size; + file->state.undo.redo.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); + file->state.undo.redo.edit_max = request_size / sizeof(Edit_Step); + file->state.undo.redo.edits = (Edit_Step*)general_memory_allocate(general, request_size, BUBBLE_UNDO); + + file->state.undo.history.max = request_size; + file->state.undo.history.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); + file->state.undo.history.edit_max = request_size / sizeof(Edit_Step); + file->state.undo.history.edits = (Edit_Step*)general_memory_allocate(general, request_size, BUBBLE_UNDO); + + file->state.undo.children.max = request_size; + file->state.undo.children.strings = (u8*)general_memory_allocate(general, request_size, BUBBLE_UNDO_STRING); + file->state.undo.children.edit_max = request_size / sizeof(Buffer_Edit); + file->state.undo.children.edits = (Buffer_Edit*)general_memory_allocate(general, request_size, BUBBLE_UNDO); + + file->state.undo.history_block_count = 1; + file->state.undo.history_head_block = 0; + file->state.undo.current_block_normal = 1; + } + + Hook_Function *open_hook = models->hooks[hook_open_file]; + models->buffer_param_indices[models->buffer_param_count++] = file->id.id; + open_hook(&models->app_links); + models->buffer_param_count = 0; + file->settings.is_initialized = 1; +} + +internal b32 +file_create_empty(System_Functions *system, + Models *models, Editing_File *file, char *filename){ + file_create_from_string(system, models, file, filename, string_zero()); + return (1); +} + +internal b32 +file_create_read_only(System_Functions *system, + Models *models, Editing_File *file, char *filename){ + file_create_from_string(system, models, file, filename, string_zero(), 1); + return (1); +} + +internal void +file_close(System_Functions *system, General_Memory *general, Editing_File *file){ + if (file->state.still_lexing){ + system->cancel_job(BACKGROUND_THREADS, file->state.lex_job); + if (file->state.swap_stack.tokens){ + general_memory_free(general, file->state.swap_stack.tokens); + file->state.swap_stack.tokens = 0; + } + } + if (file->state.token_stack.tokens){ + general_memory_free(general, file->state.token_stack.tokens); + } + + Buffer_Type *buffer = &file->state.buffer; + if (buffer->data){ + general_memory_free(general, buffer->data); + general_memory_free(general, buffer->line_starts); + general_memory_free(general, buffer->line_widths); + } + + if (file->state.undo.undo.edits){ + general_memory_free(general, file->state.undo.undo.strings); + general_memory_free(general, file->state.undo.undo.edits); + + general_memory_free(general, file->state.undo.redo.strings); + general_memory_free(general, file->state.undo.redo.edits); + + general_memory_free(general, file->state.undo.history.strings); + general_memory_free(general, file->state.undo.history.edits); + + general_memory_free(general, file->state.undo.children.strings); + general_memory_free(general, file->state.undo.children.edits); + } +} + +struct Shift_Information{ + i32 start, end, amount; +}; + +internal +Job_Callback_Sig(job_full_lex){ + Editing_File *file = (Editing_File*)data[0]; + General_Memory *general = (General_Memory*)data[1]; + + Cpp_File cpp_file; + cpp_file.data = file->state.buffer.data; + cpp_file.size = file->state.buffer.size; + + Cpp_Token_Stack tokens; + tokens.tokens = (Cpp_Token*)memory->data; + tokens.max_count = memory->size / sizeof(Cpp_Token); + tokens.count = 0; + + Cpp_Lex_Data status = {}; + + do{ + for (i32 r = 2048; r > 0 && status.pos < cpp_file.size; --r){ + Cpp_Lex_Data prev_lex = status; + Cpp_Read_Result step_result = cpp_lex_step(cpp_file, &status); + + if (step_result.has_result){ + if (!cpp_push_token_nonalloc(&tokens, step_result.token)){ + status = prev_lex; + system->grow_thread_memory(memory); + tokens.tokens = (Cpp_Token*)memory->data; + tokens.max_count = memory->size / sizeof(Cpp_Token); + } + } + } + + if (status.pos >= cpp_file.size){ + status.complete = 1; + } + else{ + if (system->check_cancel(thread)){ + return; + } + } + } while(!status.complete); + + i32 new_max = LargeRoundUp(tokens.count+1, Kbytes(1)); + + system->acquire_lock(FRAME_LOCK); + { + Assert(file->state.swap_stack.tokens == 0); + file->state.swap_stack.tokens = (Cpp_Token*) + general_memory_allocate(general, new_max*sizeof(Cpp_Token), BUBBLE_TOKENS); + } + system->release_lock(FRAME_LOCK); + + u8 *dest = (u8*)file->state.swap_stack.tokens; + u8 *src = (u8*)tokens.tokens; + + memcpy(dest, src, tokens.count*sizeof(Cpp_Token)); + + system->acquire_lock(FRAME_LOCK); + { + Cpp_Token_Stack *file_stack = &file->state.token_stack; + file_stack->count = tokens.count; + file_stack->max_count = new_max; + if (file_stack->tokens){ + general_memory_free(general, file_stack->tokens); + } + file_stack->tokens = file->state.swap_stack.tokens; + file->state.swap_stack.tokens = 0; + } + system->release_lock(FRAME_LOCK); + + // NOTE(allen): These are outside the locked section because I don't + // think getting these out of order will cause critical bugs, and I + // want to minimize what's done in locked sections. + file->state.tokens_complete = 1; + file->state.still_lexing = 0; +} + + +internal void +file_kill_tokens(System_Functions *system, + General_Memory *general, Editing_File *file){ + file->settings.tokens_exist = 0; + if (file->state.still_lexing){ + system->cancel_job(BACKGROUND_THREADS, file->state.lex_job); + if (file->state.swap_stack.tokens){ + general_memory_free(general, file->state.swap_stack.tokens); + file->state.swap_stack.tokens = 0; + } + } + if (file->state.token_stack.tokens){ + general_memory_free(general, file->state.token_stack.tokens); + } + file->state.tokens_complete = 0; + file->state.token_stack = cpp_token_stack_zero(); +} + +#if BUFFER_EXPERIMENT_SCALPEL <= 0 +internal void +file_first_lex_parallel(System_Functions *system, + General_Memory *general, Editing_File *file){ + file->settings.tokens_exist = 1; + + if (file->is_loading == 0 && file->state.still_lexing == 0){ + Assert(file->state.token_stack.tokens == 0); + + file->state.tokens_complete = 0; + file->state.still_lexing = 1; + + Job_Data job; + job.callback = job_full_lex; + job.data[0] = file; + job.data[1] = general; + job.memory_request = Kbytes(64); + file->state.lex_job = system->post_job(BACKGROUND_THREADS, job); + } +} +#endif + +internal void +file_relex_parallel(System_Functions *system, + Mem_Options *mem, Editing_File *file, + i32 start_i, i32 end_i, i32 amount){ + General_Memory *general = &mem->general; + Partition *part = &mem->part; + if (file->state.token_stack.tokens == 0){ + file_first_lex_parallel(system, general, file); + return; + } + + b32 inline_lex = !file->state.still_lexing; + if (inline_lex){ + Cpp_File cpp_file; + cpp_file.data = file->state.buffer.data; + cpp_file.size = file->state.buffer.size; + + Cpp_Token_Stack *stack = &file->state.token_stack; + + Cpp_Relex_State state = + cpp_relex_nonalloc_start(cpp_file, stack, + start_i, end_i, amount, 100); + + Temp_Memory temp = begin_temp_memory(part); + i32 relex_end; + Cpp_Token_Stack relex_space; + relex_space.count = 0; + relex_space.max_count = state.space_request; + relex_space.tokens = push_array(part, Cpp_Token, relex_space.max_count); + if (cpp_relex_nonalloc_main(&state, &relex_space, &relex_end)){ + inline_lex = 0; + } + else{ + i32 delete_amount = relex_end - state.start_token_i; + i32 shift_amount = relex_space.count - delete_amount; + + if (shift_amount != 0){ + int new_count = stack->count + shift_amount; + if (new_count > stack->max_count){ + int new_max = LargeRoundUp(new_count, Kbytes(1)); + stack->tokens = (Cpp_Token*) + general_memory_reallocate(general, stack->tokens, + stack->count*sizeof(Cpp_Token), + new_max*sizeof(Cpp_Token), BUBBLE_TOKENS); + stack->max_count = new_max; + } + + int shift_size = stack->count - relex_end; + if (shift_size > 0){ + Cpp_Token *old_base = stack->tokens + relex_end; + memmove(old_base + shift_amount, old_base, + sizeof(Cpp_Token)*shift_size); + } + + stack->count += shift_amount; + } + + memcpy(state.stack->tokens + state.start_token_i, relex_space.tokens, + sizeof(Cpp_Token)*relex_space.count); + } + + end_temp_memory(temp); + } + + if (!inline_lex){ + Cpp_Token_Stack *stack = &file->state.token_stack; + Cpp_Get_Token_Result get_token_result = cpp_get_token(stack, end_i); + i32 end_token_i = get_token_result.token_index; + + if (end_token_i < 0) end_token_i = 0; + else if (end_i > stack->tokens[end_token_i].start) ++end_token_i; + + cpp_shift_token_starts(stack, end_token_i, amount); + --end_token_i; + if (end_token_i >= 0){ + Cpp_Token *token = stack->tokens + end_token_i; + if (token->start < end_i && token->start + token->size > end_i){ + token->size += amount; + } + } + + file->state.still_lexing = 1; + + Job_Data job; + job.callback = job_full_lex; + job.data[0] = file; + job.data[1] = general; + job.memory_request = Kbytes(64); + file->state.lex_job = system->post_job(BACKGROUND_THREADS, job); + } +} + +internal void +undo_stack_grow_string(General_Memory *general, Edit_Stack *stack, i32 extra_size){ + i32 old_max = stack->max; + u8 *old_str = stack->strings; + i32 new_max = old_max*2 + extra_size; + u8 *new_str = (u8*) + general_memory_reallocate(general, old_str, old_max, new_max); + stack->strings = new_str; + stack->max = new_max; +} + +internal void +undo_stack_grow_edits(General_Memory *general, Edit_Stack *stack){ + i32 old_max = stack->edit_max; + Edit_Step *old_eds = stack->edits; + i32 new_max = old_max*2 + 2; + Edit_Step *new_eds = (Edit_Step*) + general_memory_reallocate(general, old_eds, old_max*sizeof(Edit_Step), new_max*sizeof(Edit_Step)); + stack->edits = new_eds; + stack->edit_max = new_max; +} + +internal void +child_stack_grow_string(General_Memory *general, Small_Edit_Stack *stack, i32 extra_size){ + i32 old_max = stack->max; + u8 *old_str = stack->strings; + i32 new_max = old_max*2 + extra_size; + u8 *new_str = (u8*) + general_memory_reallocate(general, old_str, old_max, new_max); + stack->strings = new_str; + stack->max = new_max; +} + +internal void +child_stack_grow_edits(General_Memory *general, Small_Edit_Stack *stack, i32 amount){ + i32 old_max = stack->edit_max; + Buffer_Edit *old_eds = stack->edits; + i32 new_max = old_max*2 + amount; + Buffer_Edit *new_eds = (Buffer_Edit*) + general_memory_reallocate(general, old_eds, old_max*sizeof(Buffer_Edit), new_max*sizeof(Buffer_Edit)); + stack->edits = new_eds; + stack->edit_max = new_max; +} + +internal i32 +undo_children_push(General_Memory *general, Small_Edit_Stack *children, + Buffer_Edit *edits, i32 edit_count, u8 *strings, i32 string_size){ + i32 result = children->edit_count; + if (children->edit_count + edit_count > children->edit_max) + child_stack_grow_edits(general, children, edit_count); + + if (children->size + string_size > children->max) + child_stack_grow_string(general, children, string_size); + + memcpy(children->edits + children->edit_count, edits, edit_count*sizeof(Buffer_Edit)); + memcpy(children->strings + children->size, strings, string_size); + + Buffer_Edit *edit = children->edits + children->edit_count; + i32 start_pos = children->size; + for (i32 i = 0; i < edit_count; ++i, ++edit){ + edit->str_start += start_pos; + } + + children->edit_count += edit_count; + children->size += string_size; + + return result; +} + +struct Edit_Spec{ + u8 *str; + Edit_Step step; +}; + +internal Edit_Step* +file_post_undo(General_Memory *general, Editing_File *file, + Edit_Step step, b32 do_merge, b32 can_merge){ + if (step.type == ED_NORMAL){ + file->state.undo.redo.size = 0; + file->state.undo.redo.edit_count = 0; + } + + Edit_Stack *undo = &file->state.undo.undo; + Edit_Step *result = 0; + + if (step.child_count == 0){ + if (step.edit.end - step.edit.start + undo->size > undo->max) + undo_stack_grow_string(general, undo, step.edit.end - step.edit.start); + + Buffer_Edit inv; + buffer_invert_edit(&file->state.buffer, step.edit, &inv, + (char*)undo->strings, &undo->size, undo->max); + + Edit_Step inv_step = {}; + inv_step.edit = inv; + inv_step.pre_pos = step.pre_pos; + inv_step.post_pos = step.post_pos; + inv_step.can_merge = (b8)can_merge; + inv_step.type = ED_UNDO; + + b32 did_merge = 0; + if (do_merge && undo->edit_count > 0){ + Edit_Step prev = undo->edits[undo->edit_count-1]; + if (prev.can_merge && inv_step.edit.len == 0 && prev.edit.len == 0){ + if (prev.edit.end == inv_step.edit.start){ + did_merge = 1; + inv_step.edit.start = prev.edit.start; + inv_step.pre_pos = prev.pre_pos; + } + } + } + + if (did_merge){ + result = undo->edits + (undo->edit_count-1); + *result = inv_step; + } + else{ + if (undo->edit_count == undo->edit_max) + undo_stack_grow_edits(general, undo); + + result = undo->edits + (undo->edit_count++); + *result = inv_step; + } + } + else{ + Edit_Step inv_step = {}; + inv_step.type = ED_UNDO; + inv_step.first_child = step.inverse_first_child; + inv_step.inverse_first_child = step.first_child; + inv_step.special_type = step.special_type; + inv_step.child_count = step.inverse_child_count; + inv_step.inverse_child_count = step.child_count; + + if (undo->edit_count == undo->edit_max) + undo_stack_grow_edits(general, undo); + result = undo->edits + (undo->edit_count++); + *result = inv_step; + } + return result; +} + +inline void +undo_stack_pop(Edit_Stack *stack){ + if (stack->edit_count > 0){ + Edit_Step *edit = stack->edits + (--stack->edit_count); + if (edit->child_count == 0){ + stack->size -= edit->edit.len; + } + } +} + +internal void +file_post_redo(General_Memory *general, Editing_File *file, Edit_Step step){ + Edit_Stack *redo = &file->state.undo.redo; + + if (step.child_count == 0){ + if (step.edit.end - step.edit.start + redo->size > redo->max) + undo_stack_grow_string(general, redo, step.edit.end - step.edit.start); + + Buffer_Edit inv; + buffer_invert_edit(&file->state.buffer, step.edit, &inv, + (char*)redo->strings, &redo->size, redo->max); + + Edit_Step inv_step = {}; + inv_step.edit = inv; + inv_step.pre_pos = step.pre_pos; + inv_step.post_pos = step.post_pos; + inv_step.type = ED_REDO; + + if (redo->edit_count == redo->edit_max) + undo_stack_grow_edits(general, redo); + redo->edits[redo->edit_count++] = inv_step; + } + else{ + Edit_Step inv_step = {}; + inv_step.type = ED_REDO; + inv_step.first_child = step.inverse_first_child; + inv_step.inverse_first_child = step.first_child; + inv_step.special_type = step.special_type; + inv_step.child_count = step.inverse_child_count; + inv_step.inverse_child_count = step.child_count; + + if (redo->edit_count == redo->edit_max){ + undo_stack_grow_edits(general, redo); + } + redo->edits[redo->edit_count++] = inv_step; + } +} + +inline void +file_post_history_block(Editing_File *file, i32 pos){ + Assert(file->state.undo.history_head_block < pos); + Assert(pos < file->state.undo.history.edit_count); + + Edit_Step *history = file->state.undo.history.edits; + Edit_Step *step = history + file->state.undo.history_head_block; + step->next_block = pos; + step = history + pos; + step->prev_block = file->state.undo.history_head_block; + file->state.undo.history_head_block = pos; + ++file->state.undo.history_block_count; +} + +inline void +file_unpost_history_block(Editing_File *file){ + Assert(file->state.undo.history_block_count > 1); + --file->state.undo.history_block_count; + Edit_Step *old_head = file->state.undo.history.edits + file->state.undo.history_head_block; + file->state.undo.history_head_block = old_head->prev_block; +} + +internal Edit_Step* +file_post_history(General_Memory *general, Editing_File *file, + Edit_Step step, b32 do_merge, b32 can_merge){ + Edit_Stack *history = &file->state.undo.history; + Edit_Step *result = 0; + + persist Edit_Type reverse_types[4]; + if (reverse_types[ED_UNDO] == 0){ + reverse_types[ED_NORMAL] = ED_REVERSE_NORMAL; + reverse_types[ED_REVERSE_NORMAL] = ED_NORMAL; + reverse_types[ED_UNDO] = ED_REDO; + reverse_types[ED_REDO] = ED_UNDO; + } + + if (step.child_count == 0){ + if (step.edit.end - step.edit.start + history->size > history->max) + undo_stack_grow_string(general, history, step.edit.end - step.edit.start); + + Buffer_Edit inv; + buffer_invert_edit(&file->state.buffer, step.edit, &inv, + (char*)history->strings, &history->size, history->max); + + Edit_Step inv_step = {}; + inv_step.edit = inv; + inv_step.pre_pos = step.pre_pos; + inv_step.post_pos = step.post_pos; + inv_step.can_merge = (b8)can_merge; + inv_step.type = reverse_types[step.type]; + + bool32 did_merge = 0; + if (do_merge && history->edit_count > 0){ + Edit_Step prev = history->edits[history->edit_count-1]; + if (prev.can_merge && inv_step.edit.len == 0 && prev.edit.len == 0){ + if (prev.edit.end == inv_step.edit.start){ + did_merge = 1; + inv_step.edit.start = prev.edit.start; + inv_step.pre_pos = prev.pre_pos; + } + } + } + + if (did_merge){ + result = history->edits + (history->edit_count-1); + } + else{ + if (history->edit_count == history->edit_max) + undo_stack_grow_edits(general, history); + result = history->edits + (history->edit_count++); + } + + *result = inv_step; + } + else{ + Edit_Step inv_step = {}; + inv_step.type = reverse_types[step.type]; + inv_step.first_child = step.inverse_first_child; + inv_step.inverse_first_child = step.first_child; + inv_step.special_type = step.special_type; + inv_step.inverse_child_count = step.child_count; + inv_step.child_count = step.inverse_child_count; + + if (history->edit_count == history->edit_max) + undo_stack_grow_edits(general, history); + result = history->edits + (history->edit_count++); + *result = inv_step; + } + + return result; +} + +inline Full_Cursor +view_compute_cursor_from_pos(View *view, i32 pos){ + Editing_File *file = view->file_data.file; + Models *models = view->persistent.models; + Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; + + Full_Cursor result = {}; + if (font){ + f32 max_width = view_file_width(view); + result = buffer_cursor_from_pos(&file->state.buffer, pos, view->file_data.line_wrap_y, + max_width, (f32)view->font_height, font->advance_data); + } + return result; +} + +inline Full_Cursor +view_compute_cursor_from_unwrapped_xy(View *view, f32 seek_x, f32 seek_y, b32 round_down = 0){ + Editing_File *file = view->file_data.file; + Models *models = view->persistent.models; + Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; + + Full_Cursor result = {}; + if (font){ + f32 max_width = view_file_width(view); + result = buffer_cursor_from_unwrapped_xy(&file->state.buffer, seek_x, seek_y, + round_down, view->file_data.line_wrap_y, max_width, (f32)view->font_height, font->advance_data); + } + + return result; +} + +internal Full_Cursor +view_compute_cursor_from_wrapped_xy(View *view, f32 seek_x, f32 seek_y, b32 round_down = 0){ + Editing_File *file = view->file_data.file; + Models *models = view->persistent.models; + Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; + + Full_Cursor result = {}; + if (font){ + f32 max_width = view_file_width(view); + result = buffer_cursor_from_wrapped_xy(&file->state.buffer, seek_x, seek_y, + round_down, view->file_data.line_wrap_y, + max_width, (f32)view->font_height, font->advance_data); + } + + return (result); +} + +internal Full_Cursor +view_compute_cursor_from_line_pos(View *view, i32 line, i32 pos){ + Editing_File *file = view->file_data.file; + Models *models = view->persistent.models; + Render_Font *font = get_font_info(models->font_set, models->global_font.font_id)->font; + + Full_Cursor result = {}; + if (font){ + f32 max_width = view_file_width(view); + result = buffer_cursor_from_line_character(&file->state.buffer, line, pos, + view->file_data.line_wrap_y, max_width, (f32)view->font_height, font->advance_data); + } + + return (result); +} + +inline Full_Cursor +view_compute_cursor(View *view, Buffer_Seek seek){ + Full_Cursor result = {}; + + switch(seek.type){ + case buffer_seek_pos: + result = view_compute_cursor_from_pos(view, seek.pos); + break; + + case buffer_seek_wrapped_xy: + result = view_compute_cursor_from_wrapped_xy(view, seek.x, seek.y); + break; + + case buffer_seek_unwrapped_xy: + result = view_compute_cursor_from_unwrapped_xy(view, seek.x, seek.y); + break; + + case buffer_seek_line_char: + result = view_compute_cursor_from_line_pos(view, seek.line, seek.character); + break; + } + + return (result); +} + +inline Full_Cursor +view_compute_cursor_from_xy(View *view, f32 seek_x, f32 seek_y){ + Full_Cursor result; + if (view->file_data.unwrapped_lines) result = view_compute_cursor_from_unwrapped_xy(view, seek_x, seek_y); + else result = view_compute_cursor_from_wrapped_xy(view, seek_x, seek_y); + return result; +} + +inline void +view_set_temp_highlight(View *view, i32 pos, i32 end_pos){ + view->file_data.temp_highlight = view_compute_cursor_from_pos(view, pos); + view->file_data.temp_highlight_end_pos = end_pos; + view->file_data.show_temp_highlight = 1; +} + +inline i32 +view_get_cursor_pos(View *view){ + i32 result; + if (view->file_data.show_temp_highlight){ + result = view->file_data.temp_highlight.pos; + } + else{ + result = view->recent->cursor.pos; + } + return result; +} + +inline f32 +view_get_cursor_x(View *view){ + f32 result; + Full_Cursor *cursor; + if (view->file_data.show_temp_highlight){ + cursor = &view->file_data.temp_highlight; + } + else{ + cursor = &view->recent->cursor; + } + if (view->file_data.unwrapped_lines){ + result = cursor->unwrapped_x; + } + else{ + result = cursor->wrapped_x; + } + return result; +} + +inline f32 +view_get_cursor_y(View *view){ + Full_Cursor *cursor; + f32 result; + + if (view->file_data.show_temp_highlight) cursor = &view->file_data.temp_highlight; + else cursor = &view->recent->cursor; + + if (view->file_data.unwrapped_lines) result = cursor->unwrapped_y; + else result = cursor->wrapped_y; + + return result; +} + +#define CursorMaxY_(m,h) ((m) - (h)*3) +#define CursorMinY_(m,h) (-(m) + (h)*2) + +#define CursorMaxY(m,h) (CursorMaxY_(m,h) > 0)?(CursorMaxY_(m,h)):(0) +#define CursorMinY(m,h) (CursorMinY_(m,h) > 0)?(CursorMinY_(m,h)):(0) + +internal void +view_move_cursor_to_view(View *view){ + f32 min_target_y = 0; + i32 line_height = view->font_height; + f32 old_cursor_y = view_get_cursor_y(view); + f32 cursor_y = old_cursor_y; + f32 target_y = view->recent->scroll.target_y; + f32 cursor_max_y = CursorMaxY(view_file_height(view), line_height); + f32 cursor_min_y = CursorMinY(min_target_y, line_height); + + if (cursor_y > target_y + cursor_max_y){ + cursor_y = target_y + cursor_max_y; + } + if (target_y != 0 && cursor_y < target_y + cursor_min_y){ + cursor_y = target_y + cursor_min_y; + } + + if (cursor_y != old_cursor_y){ + if (cursor_y > old_cursor_y){ + cursor_y += line_height; + } + else{ + cursor_y -= line_height; + } + view->recent->cursor = + view_compute_cursor_from_xy(view, view->recent->preferred_x, cursor_y); + } +} + +internal void +view_move_view_to_cursor(View *view, GUI_Scroll_Vars *scroll){ + f32 line_height = (f32)view->font_height; + f32 delta_y = 3.f*line_height; + + f32 max_visible_y = view_file_height(view); + f32 max_x = view_file_width(view); + + f32 cursor_y = view_get_cursor_y(view); + f32 cursor_x = view_get_cursor_x(view); + + GUI_Scroll_Vars scroll_vars = *scroll; + f32 target_y = scroll_vars.target_y; + f32 target_x = scroll_vars.target_x; + + f32 cursor_max_y = CursorMaxY(max_visible_y, line_height); + f32 cursor_min_y = CursorMinY(0, line_height); + + if (cursor_y > target_y + cursor_max_y){ + target_y = cursor_y - cursor_max_y + delta_y; + } + if (cursor_y < target_y + cursor_min_y){ + target_y = cursor_y - delta_y - cursor_min_y; + } + + target_y = clamp(0.f, target_y, scroll_vars.max_y); + + if (cursor_x < target_x){ + target_x = (f32)Max(0, cursor_x - max_x/2); + } + else if (cursor_x >= target_x + max_x){ + target_x = (f32)(cursor_x - max_x/2); + } + + if (target_x != scroll_vars.target_x || target_y != scroll_vars.target_y){ + scroll->target_x = target_x; + scroll->target_y = target_y; + } +} + +inline void +file_view_nullify_file(View *view){ + General_Memory *general = &view->persistent.models->mem.general; + if (view->file_data.line_wrap_y){ + general_memory_free(general, view->file_data.line_wrap_y); + } + view->file_data = file_viewing_data_zero(); +} + +inline f32 +view_compute_max_target_y(i32 lowest_line, i32 line_height, f32 view_height){ + f32 max_target_y = ((lowest_line+.5f)*line_height) - view_height*.5f; + max_target_y = clamp_bottom(0.f, max_target_y); + return(max_target_y); +} + +internal f32 +view_compute_max_target_y(View *view){ + i32 lowest_line = view_compute_lowest_line(view); + i32 line_height = view->font_height; + f32 view_height = view_file_height(view); + f32 max_target_y = view_compute_max_target_y(lowest_line, line_height, view_height); + return(max_target_y); +} + +internal void +view_set_file(View *view, Editing_File *file, Models *models){ + Font_Info *fnt_info; + + // TODO(allen): This belongs somewhere else. + fnt_info = get_font_info(models->font_set, models->global_font.font_id); + view->font_advance = fnt_info->advance; + view->font_height = fnt_info->height; + + file_view_nullify_file(view); + view->file_data.file = file; + + if (file){ + u64 unique_buffer_id = file->unique_buffer_id; + Recent_File_Data *recent = view->recent; + Recent_File_Data temp_recent = {0}; + i32 i = 0; + i32 max = ArrayCount(view->recent)-1; + b32 found_recent_entry = 0; + + view->file_data.unwrapped_lines = file->settings.unwrapped_lines; + + for (; i < max; ++i, ++recent){ + if (recent->unique_buffer_id == unique_buffer_id){ + temp_recent = *recent; + memmove(view->recent+1, view->recent, sizeof(*recent)*i); + view->recent[0] = temp_recent; + found_recent_entry = 1; + break; + } + } + + if (found_recent_entry){ + if (file_is_ready(file)){ + view_measure_wraps(&models->mem.general, view); + view->recent->cursor = view_compute_cursor_from_pos(view, view->recent->cursor.pos); + view->recent->scroll.max_y = view_compute_max_target_y(view); + + view_move_view_to_cursor(view, &view->recent->scroll); + } + } + else{ + i = 15; + recent = view->recent + i; + memmove(view->recent+1, view->recent, sizeof(*recent)*i); + view->recent[0] = recent_file_data_zero(); + + recent = view->recent; + recent->unique_buffer_id = unique_buffer_id; + + if (file_is_ready(file)){ + view_measure_wraps(&models->mem.general, view); + view->recent->cursor = view_compute_cursor_from_pos(view, file->state.cursor_pos); + view->recent->scroll.max_y = view_compute_max_target_y(view); + + view_move_view_to_cursor(view, &view->recent->scroll); + view->reinit_scrolling = 1; + } + } + } +} + +struct Relative_Scrolling{ + f32 scroll_x, scroll_y; + f32 target_x, target_y; +}; + +internal Relative_Scrolling +view_get_relative_scrolling(View *view){ + Relative_Scrolling result; + f32 cursor_y; + cursor_y = view_get_cursor_y(view); + result.scroll_y = cursor_y - view->recent->scroll.scroll_y; + result.target_y = cursor_y - view->recent->scroll.target_y; + return(result); +} + +internal void +view_set_relative_scrolling(View *view, Relative_Scrolling scrolling){ + f32 cursor_y; + cursor_y = view_get_cursor_y(view); + view->recent->scroll.scroll_y = cursor_y - scrolling.scroll_y; + view->recent->scroll.target_y = + clamp_bottom(0.f, cursor_y - scrolling.target_y); +} + +inline void +view_cursor_move(View *view, Full_Cursor cursor){ + view->recent->cursor = cursor; + view->recent->preferred_x = view_get_cursor_x(view); + view->file_data.file->state.cursor_pos = view->recent->cursor.pos; + view->file_data.show_temp_highlight = 0; +} + +inline void +view_cursor_move(View *view, i32 pos){ + Full_Cursor cursor = view_compute_cursor_from_pos(view, pos); + view_cursor_move(view, cursor); +} + +inline void +view_cursor_move(View *view, f32 x, f32 y, b32 round_down = 0){ + Full_Cursor cursor; + if (view->file_data.unwrapped_lines){ + cursor = view_compute_cursor_from_unwrapped_xy(view, x, y, round_down); + } + else{ + cursor = view_compute_cursor_from_wrapped_xy(view, x, y, round_down); + } + view_cursor_move(view, cursor); +} + +inline void +view_cursor_move(View *view, i32 line, i32 pos){ + Full_Cursor cursor = view_compute_cursor_from_line_pos(view, line, pos); + view_cursor_move(view, cursor); +} + +inline void +view_set_widget(View *view, View_Widget_Type type){ + view->widget.type = type; +} + + +inline i32_Rect +view_widget_rect(View *view, i32 font_height){ + Panel *panel = view->panel; + i32_Rect result = panel->inner; + + if (view->file_data.file){ + result.y0 = result.y0 + font_height + 2; + } + + return(result); +} + +enum History_Mode{ + hist_normal, + hist_backward, + hist_forward +}; + +internal void +file_update_history_before_edit(Mem_Options *mem, Editing_File *file, Edit_Step step, u8 *str, + History_Mode history_mode){ + if (!file->state.undo.undo.edits) return; + General_Memory *general = &mem->general; + + b32 can_merge = 0, do_merge = 0; + switch (step.type){ + case ED_NORMAL: + { + if (step.edit.len == 1 && str && char_is_alpha_numeric(*str)) can_merge = 1; + if (step.edit.len == 1 && str && (can_merge || char_is_whitespace(*str))) do_merge = 1; + + if (history_mode != hist_forward) + file_post_history(general, file, step, do_merge, can_merge); + + file_post_undo(general, file, step, do_merge, can_merge); + }break; + + case ED_REVERSE_NORMAL: + { + if (history_mode != hist_forward) + file_post_history(general, file, step, do_merge, can_merge); + + undo_stack_pop(&file->state.undo.undo); + + b32 restore_redos = 0; + Edit_Step *redo_end = 0; + + if (history_mode == hist_backward && file->state.undo.edit_history_cursor > 0){ + restore_redos = 1; + redo_end = file->state.undo.history.edits + (file->state.undo.edit_history_cursor - 1); + } + else if (history_mode == hist_forward && file->state.undo.history.edit_count > 0){ + restore_redos = 1; + redo_end = file->state.undo.history.edits + (file->state.undo.history.edit_count - 1); + } + + if (restore_redos){ + Edit_Step *redo_start = redo_end; + i32 steps_of_redo = 0; + i32 strings_of_redo = 0; + i32 undo_count = 0; + while (redo_start->type == ED_REDO || redo_start->type == ED_UNDO){ + if (redo_start->type == ED_REDO){ + if (undo_count > 0) --undo_count; + else{ + ++steps_of_redo; + strings_of_redo += redo_start->edit.len; + } + } + else{ + ++undo_count; + } + --redo_start; + } + + if (redo_start < redo_end){ + ++redo_start; + ++redo_end; + + if (file->state.undo.redo.edit_count + steps_of_redo > file->state.undo.redo.edit_max) + undo_stack_grow_edits(general, &file->state.undo.redo); + + if (file->state.undo.redo.size + strings_of_redo > file->state.undo.redo.max) + undo_stack_grow_string(general, &file->state.undo.redo, strings_of_redo); + + u8 *str_src = file->state.undo.history.strings + redo_end->edit.str_start; + u8 *str_dest_base = file->state.undo.redo.strings; + i32 str_redo_pos = file->state.undo.redo.size + strings_of_redo; + + Edit_Step *edit_src = redo_end; + Edit_Step *edit_dest = + file->state.undo.redo.edits + file->state.undo.redo.edit_count + steps_of_redo; + + i32 undo_count = 0; + for (i32 i = 0; i < steps_of_redo;){ + --edit_src; + str_src -= edit_src->edit.len; + if (edit_src->type == ED_REDO){ + if (undo_count > 0){ + --undo_count; + } + else{ + ++i; + + --edit_dest; + *edit_dest = *edit_src; + + str_redo_pos -= edit_dest->edit.len; + edit_dest->edit.str_start = str_redo_pos; + + memcpy(str_dest_base + str_redo_pos, str_src, edit_dest->edit.len); + } + } + else{ + ++undo_count; + } + } + Assert(undo_count == 0); + + file->state.undo.redo.size += strings_of_redo; + file->state.undo.redo.edit_count += steps_of_redo; + } + } + }break; + + case ED_UNDO: + { + if (history_mode != hist_forward) + file_post_history(general, file, step, do_merge, can_merge); + file_post_redo(general, file, step); + undo_stack_pop(&file->state.undo.undo); + }break; + + case ED_REDO: + { + if (step.edit.len == 1 && str && char_is_alpha_numeric(*str)) can_merge = 1; + if (step.edit.len == 1 && str && (can_merge || char_is_whitespace(*str))) do_merge = 1; + + if (history_mode != hist_forward) + file_post_history(general, file, step, do_merge, can_merge); + + file_post_undo(general, file, step, do_merge, can_merge); + undo_stack_pop(&file->state.undo.redo); + }break; + } + + if (history_mode != hist_forward){ + if (step.type == ED_UNDO || step.type == ED_REDO){ + if (file->state.undo.current_block_normal){ + file_post_history_block(file, file->state.undo.history.edit_count - 1); + file->state.undo.current_block_normal = 0; + } + } + else{ + if (!file->state.undo.current_block_normal){ + file_post_history_block(file, file->state.undo.history.edit_count - 1); + file->state.undo.current_block_normal = 1; + } + } + } + else{ + if (file->state.undo.history_head_block == file->state.undo.history.edit_count){ + file_unpost_history_block(file); + file->state.undo.current_block_normal = !file->state.undo.current_block_normal; + } + } + + if (history_mode == hist_normal){ + file->state.undo.edit_history_cursor = file->state.undo.history.edit_count; + } +} + +inline void +file_pre_edit_maintenance(System_Functions *system, + General_Memory *general, + Editing_File *file){ + if (file->state.still_lexing){ + system->cancel_job(BACKGROUND_THREADS, file->state.lex_job); + if (file->state.swap_stack.tokens){ + general_memory_free(general, file->state.swap_stack.tokens); + file->state.swap_stack.tokens = 0; + } + file->state.still_lexing = 0; + } + file->state.last_4ed_edit_time = system->now_time_stamp(); +} + +struct Cursor_Fix_Descriptor{ + b32 is_batch; + union{ + struct{ + Buffer_Edit *batch; + i32 batch_size; + }; + struct{ + i32 start, end; + i32 shift_amount; + }; + }; +}; + +internal void +file_edit_cursor_fix(System_Functions *system, + Partition *part, General_Memory *general, + Editing_File *file, Editing_Layout *layout, + Cursor_Fix_Descriptor desc){ + + Full_Cursor temp_cursor; + Temp_Memory cursor_temp = begin_temp_memory(part); + i32 cursor_max = layout->panel_max_count * 2; + Cursor_With_Index *cursors = push_array(part, Cursor_With_Index, cursor_max); + + f32 y_offset = 0, y_position = 0; + i32 cursor_count = 0; + + View *view; + Panel *panel, *used_panels; + used_panels = &layout->used_sentinel; + + for (dll_items(panel, used_panels)){ + view = panel->view; + if (view->file_data.file == file){ + view_measure_wraps(general, view); + write_cursor_with_index(cursors, &cursor_count, view->recent->cursor.pos); + write_cursor_with_index(cursors, &cursor_count, view->recent->mark - 1); + write_cursor_with_index(cursors, &cursor_count, view->recent->scroll_i - 1); + } + } + + if (cursor_count > 0){ + buffer_sort_cursors(cursors, cursor_count); + if (desc.is_batch){ + buffer_batch_edit_update_cursors(cursors, cursor_count, + desc.batch, desc.batch_size); + } + else{ + buffer_update_cursors(cursors, cursor_count, + desc.start, desc.end, + desc.shift_amount + (desc.end - desc.start)); + } + buffer_unsort_cursors(cursors, cursor_count); + + cursor_count = 0; + for (dll_items(panel, used_panels)){ + view = panel->view; + if (view && view->file_data.file == file){ + view_cursor_move(view, cursors[cursor_count++].pos); + view->recent->preferred_x = view_get_cursor_x(view); + + view->recent->mark = cursors[cursor_count++].pos + 1; + i32 new_scroll_i = cursors[cursor_count++].pos + 1; + if (view->recent->scroll_i != new_scroll_i){ + view->recent->scroll_i = new_scroll_i; + temp_cursor = view_compute_cursor_from_pos(view, view->recent->scroll_i); + y_offset = MOD(view->recent->scroll.scroll_y, view->font_height); + + if (view->file_data.unwrapped_lines){ + y_position = temp_cursor.unwrapped_y + y_offset; + view->recent->scroll.target_y += (y_position - view->recent->scroll.scroll_y); + view->recent->scroll.scroll_y = y_position; + } + else{ + y_position = temp_cursor.wrapped_y + y_offset; + view->recent->scroll.target_y += (y_position - view->recent->scroll.scroll_y); + view->recent->scroll.scroll_y = y_position; + } + } + } + } + } + + end_temp_memory(cursor_temp); +} + +internal void +file_do_single_edit(System_Functions *system, + Models *models, Editing_File *file, + Edit_Spec spec, History_Mode history_mode, b32 use_high_permission = 0){ + if (!use_high_permission && file->settings.read_only) return; + + Mem_Options *mem = &models->mem; + Editing_Layout *layout = &models->layout; + + // NOTE(allen): fixing stuff beforewards???? + file_update_history_before_edit(mem, file, spec.step, spec.str, history_mode); + file_pre_edit_maintenance(system, &mem->general, file); + + // NOTE(allen): actual text replacement + i32 shift_amount = 0; + General_Memory *general = &mem->general; + Partition *part = &mem->part; + + char *str = (char*)spec.str; + i32 start = spec.step.edit.start; + i32 end = spec.step.edit.end; + i32 str_len = spec.step.edit.len; + + i32 scratch_size = partition_remaining(part); + + Assert(scratch_size > 0); + i32 request_amount = 0; + Assert(end <= buffer_size(&file->state.buffer)); + while (buffer_replace_range(&file->state.buffer, start, end, str, str_len, &shift_amount, + part->base + part->pos, scratch_size, &request_amount)){ + void *new_data = 0; + if (request_amount > 0){ + new_data = general_memory_allocate(general, request_amount, BUBBLE_BUFFER); + } + void *old_data = buffer_edit_provide_memory(&file->state.buffer, new_data, request_amount); + if (old_data) general_memory_free(general, old_data); + } + + Buffer_Type *buffer = &file->state.buffer; + i32 line_start = buffer_get_line_index(&file->state.buffer, start); + i32 line_end = buffer_get_line_index(&file->state.buffer, end); + i32 replaced_line_count = line_end - line_start; + i32 new_line_count = buffer_count_newlines(&file->state.buffer, start, start+str_len); + i32 line_shift = new_line_count - replaced_line_count; + + Render_Font *font = get_font_info(models->font_set, file->state.font_id)->font; + + file_grow_starts_widths_as_needed(general, buffer, line_shift); + buffer_remeasure_starts(buffer, line_start, line_end, line_shift, shift_amount); + buffer_remeasure_widths(buffer, font->advance_data, line_start, line_end, line_shift); + + // NOTE(allen): update the views looking at this file + Panel *panel, *used_panels; + used_panels = &layout->used_sentinel; + + for (dll_items(panel, used_panels)){ + View *view = panel->view; + if (view->file_data.file == file){ + view_measure_wraps(general, view); + } + } + +#if BUFFER_EXPERIMENT_SCALPEL <= 0 + // NOTE(allen): fixing stuff afterwards + if (file->settings.tokens_exist) + file_relex_parallel(system, mem, file, start, end, shift_amount); +#endif + + Cursor_Fix_Descriptor desc = {}; + desc.start = start; + desc.end = end; + desc.shift_amount = shift_amount; + + file_edit_cursor_fix(system, part, general, file, layout, desc); +} + +internal void +file_do_white_batch_edit(System_Functions *system, Models *models, Editing_File *file, + Edit_Spec spec, History_Mode history_mode, b32 use_high_permission = 0){ + if (!use_high_permission && file->settings.read_only) return; + + Mem_Options *mem = &models->mem; + Editing_Layout *layout = &models->layout; + + // NOTE(allen): fixing stuff "beforewards"??? + Assert(spec.str == 0); + file_update_history_before_edit(mem, file, spec.step, 0, history_mode); + file_pre_edit_maintenance(system, &mem->general, file); + + // NOTE(allen): actual text replacement + General_Memory *general = &mem->general; + Partition *part = &mem->part; + + u8 *str_base = file->state.undo.children.strings; + i32 batch_size = spec.step.child_count; + Buffer_Edit *batch = file->state.undo.children.edits + spec.step.first_child; + + Assert(spec.step.first_child < file->state.undo.children.edit_count); + Assert(batch_size >= 0); + + i32 scratch_size = partition_remaining(part); + Buffer_Batch_State state = {}; + i32 request_amount; + while (buffer_batch_edit_step(&state, &file->state.buffer, batch, + (char*)str_base, batch_size, part->base + part->pos, + scratch_size, &request_amount)){ + void *new_data = 0; + if (request_amount > 0){ + new_data = general_memory_allocate(general, request_amount, BUBBLE_BUFFER); + } + void *old_data = buffer_edit_provide_memory(&file->state.buffer, new_data, request_amount); + if (old_data) general_memory_free(general, old_data); + } + + // NOTE(allen): meta data + { + Buffer_Measure_Starts state = {}; + Render_Font *font = get_font_info(models->font_set, file->state.font_id)->font; + float *advance_data = 0; + if (font) advance_data = font->advance_data; + buffer_measure_starts_widths(&state, &file->state.buffer, advance_data); + } + + // NOTE(allen): cursor fixing + { + Cursor_Fix_Descriptor desc = {}; + desc.is_batch = 1; + desc.batch = batch; + desc.batch_size = batch_size; + + file_edit_cursor_fix(system, part, general, file, layout, desc); + } + + // NOTE(allen): token fixing + if (file->state.tokens_complete){ + Cpp_Token_Stack tokens = file->state.token_stack; + Cpp_Token *token = tokens.tokens; + Cpp_Token *end_token = tokens.tokens + tokens.count; + Cpp_Token original = {(Cpp_Token_Type)0}; + + Buffer_Edit *edit = batch; + Buffer_Edit *end_edit = batch + batch_size; + + i32 shift_amount = 0; + i32 local_shift = 0; + + for (; token < end_token; ++token){ + original = *token; + for (; edit < end_edit && edit->start <= original.start; ++edit){ + local_shift = (edit->len - (edit->end - edit->start)); + shift_amount += local_shift; + } + token->start += shift_amount; + local_shift = 0; + for (; edit < end_edit && edit->start < original.start + original.size; ++edit){ + local_shift += (edit->len - (edit->end - edit->start)); + } + token->size += local_shift; + shift_amount += local_shift; + } + } +} + +inline void +file_replace_range(System_Functions *system, Models *models, Editing_File *file, + i32 start, i32 end, char *str, i32 len, i32 next_cursor, b32 use_high_permission = 0){ + Edit_Spec spec = {}; + spec.step.type = ED_NORMAL; + spec.step.edit.start = start; + spec.step.edit.end = end; + + spec.step.edit.len = len; + spec.step.pre_pos = file->state.cursor_pos; + spec.step.post_pos = next_cursor; + spec.str = (u8*)str; + file_do_single_edit(system, models, file, spec, hist_normal, use_high_permission); +} + +inline void +file_clear(System_Functions *system, Models *models, Editing_File *file, b32 use_high_permission = 0){ + file_replace_range(system, models, file, 0, buffer_size(&file->state.buffer), 0, 0, 0, use_high_permission); +} + +inline void +view_replace_range(System_Functions *system, Models *models, View *view, + i32 start, i32 end, char *str, i32 len, i32 next_cursor){ + file_replace_range(system, models, view->file_data.file, start, end, str, len, next_cursor); +} + +inline void +view_post_paste_effect(View *view, i32 ticks, i32 start, i32 size, u32 color){ + Editing_File *file = view->file_data.file; + + file->state.paste_effect.start = start; + file->state.paste_effect.end = start + size; + file->state.paste_effect.color = color; + file->state.paste_effect.tick_down = ticks; + file->state.paste_effect.tick_max = ticks; +} + +internal Style* +get_style(Models *models, i32 i){ + return (&models->styles.styles[i]); +} + +internal Style* +main_style(Models *models){ + return (get_style(models, 0)); +} + +internal void +view_undo_redo(System_Functions *system, + Models *models, View *view, + Edit_Stack *stack, Edit_Type expected_type){ + Editing_File *file = view->file_data.file; + + if (stack->edit_count > 0){ + Edit_Step step = stack->edits[stack->edit_count-1]; + + Assert(step.type == expected_type); + + Edit_Spec spec = {}; + spec.step = step; + + if (step.child_count == 0){ + spec.step.edit.str_start = 0; + spec.str = stack->strings + step.edit.str_start; + + file_do_single_edit(system, models, file, spec, hist_normal); + + if (expected_type == ED_UNDO) view_cursor_move(view, step.pre_pos); + else view_cursor_move(view, step.post_pos); + view->recent->mark = view->recent->cursor.pos; + + Style *style = main_style(models); + view_post_paste_effect(view, 10, step.edit.start, step.edit.len, + style->main.undo_color); + } + else{ + TentativeAssert(spec.step.special_type == 1); + file_do_white_batch_edit(system, models, view->file_data.file, spec, hist_normal); + } + } +} + +inline void +view_undo(System_Functions *system, Models *models, View *view){ + view_undo_redo(system, models, view, &view->file_data.file->state.undo.undo, ED_UNDO); +} + +inline void +view_redo(System_Functions *system, Models *models, View *view){ + view_undo_redo(system, models, view, &view->file_data.file->state.undo.redo, ED_REDO); +} + +inline u8* +write_data(u8 *ptr, void *x, i32 size){ + memcpy(ptr, x, size); + return (ptr + size); +} + +#define UseFileHistoryDump 0 + +#if UseFileHistoryDump +internal void +file_dump_history(System_Functions *system, Mem_Options *mem, Editing_File *file, char *filename){ + if (!file->state.undo.undo.edits) return; + + i32 size = 0; + + size += sizeof(i32); + size += file->state.undo.undo.edit_count*sizeof(Edit_Step); + size += sizeof(i32); + size += file->state.undo.redo.edit_count*sizeof(Edit_Step); + size += sizeof(i32); + size += file->state.undo.history.edit_count*sizeof(Edit_Step); + size += sizeof(i32); + size += file->state.undo.children.edit_count*sizeof(Buffer_Edit); + + size += sizeof(i32); + size += file->state.undo.undo.size; + size += sizeof(i32); + size += file->state.undo.redo.size; + size += sizeof(i32); + size += file->state.undo.history.size; + size += sizeof(i32); + size += file->state.undo.children.size; + + Partition *part = &mem->part; + i32 remaining = partition_remaining(part); + if (size < remaining){ + u8 *data, *curs; + data = (u8*)part->base + part->pos; + curs = data; + curs = write_data(curs, &file->state.undo.undo.edit_count, 4); + curs = write_data(curs, &file->state.undo.redo.edit_count, 4); + curs = write_data(curs, &file->state.undo.history.edit_count, 4); + curs = write_data(curs, &file->state.undo.children.edit_count, 4); + curs = write_data(curs, &file->state.undo.undo.size, 4); + curs = write_data(curs, &file->state.undo.redo.size, 4); + curs = write_data(curs, &file->state.undo.history.size, 4); + curs = write_data(curs, &file->state.undo.children.size, 4); + + curs = write_data(curs, file->state.undo.undo.edits, sizeof(Edit_Step)*file->state.undo.undo.edit_count); + curs = write_data(curs, file->state.undo.redo.edits, sizeof(Edit_Step)*file->state.undo.redo.edit_count); + curs = write_data(curs, file->state.undo.history.edits, sizeof(Edit_Step)*file->state.undo.history.edit_count); + curs = write_data(curs, file->state.undo.children.edits, sizeof(Buffer_Edit)*file->state.undo.children.edit_count); + + curs = write_data(curs, file->state.undo.undo.strings, file->state.undo.undo.size); + curs = write_data(curs, file->state.undo.redo.strings, file->state.undo.redo.size); + curs = write_data(curs, file->state.undo.history.strings, file->state.undo.history.size); + curs = write_data(curs, file->state.undo.children.strings, file->state.undo.children.size); + + Assert((i32)(curs - data) == size); + system->save_file(filename, data, size); + } +} +#endif + +internal void +view_history_step(System_Functions *system, Models *models, View *view, History_Mode history_mode){ + Assert(history_mode != hist_normal); + + Editing_File *file = view->file_data.file; + + b32 do_history_step = 0; + Edit_Step step = {}; + if (history_mode == hist_backward){ + if (file->state.undo.edit_history_cursor > 0){ + do_history_step = 1; + step = file->state.undo.history.edits[--file->state.undo.edit_history_cursor]; + } + } + else{ + if (file->state.undo.edit_history_cursor < file->state.undo.history.edit_count){ + Assert(((file->state.undo.history.edit_count - file->state.undo.edit_history_cursor) & 1) == 0); + step = file->state.undo.history.edits[--file->state.undo.history.edit_count]; + file->state.undo.history.size -= step.edit.len; + ++file->state.undo.edit_history_cursor; + do_history_step = 1; + } + } + + if (do_history_step){ + Edit_Spec spec; + spec.step = step; + + if (spec.step.child_count == 0){ + spec.step.edit.str_start = 0; + spec.str = file->state.undo.history.strings + step.edit.str_start; + + file_do_single_edit(system, models, file, spec, history_mode); + + switch (spec.step.type){ + case ED_NORMAL: + case ED_REDO: + view_cursor_move(view, step.post_pos); + break; + + case ED_REVERSE_NORMAL: + case ED_UNDO: + view_cursor_move(view, step.pre_pos); + break; + } + view->recent->mark = view->recent->cursor.pos; + } + else{ + TentativeAssert(spec.step.special_type == 1); + file_do_white_batch_edit(system, models, view->file_data.file, spec, history_mode); + } + } +} + +// TODO(allen): write these as streamed operations +internal i32 +view_find_end_of_line(View *view, i32 pos){ +#if BUFFER_EXPERIMENT_SCALPEL <= 0 + Editing_File *file = view->file_data.file; + char *data = file->state.buffer.data; + while (pos < file->state.buffer.size && data[pos] != '\n') ++pos; + if (pos > file->state.buffer.size) pos = file->state.buffer.size; +#endif + return pos; +} + +internal i32 +view_find_beginning_of_line(View *view, i32 pos){ +#if BUFFER_EXPERIMENT_SCALPEL <= 0 + Editing_File *file = view->file_data.file; + char *data = file->state.buffer.data; + if (pos > 0){ + --pos; + while (pos > 0 && data[pos] != '\n') --pos; + if (pos != 0) ++pos; + } +#endif + return pos; +} + +internal i32 +view_find_beginning_of_next_line(View *view, i32 pos){ +#if BUFFER_EXPERIMENT_SCALPEL <= 0 + Editing_File *file = view->file_data.file; + char *data = file->state.buffer.data; + while (pos < file->state.buffer.size && + !starts_new_line(data[pos])){ + ++pos; + } + if (pos < file->state.buffer.size){ + ++pos; + } +#endif + return pos; +} + +internal String* +working_set_next_clipboard_string(General_Memory *general, Working_Set *working, i32 str_size){ + String *result = 0; + i32 clipboard_current = working->clipboard_current; + if (working->clipboard_size == 0){ + clipboard_current = 0; + working->clipboard_size = 1; + } + else{ + ++clipboard_current; + if (clipboard_current >= working->clipboard_max_size){ + clipboard_current = 0; + } + else if (working->clipboard_size <= clipboard_current){ + working->clipboard_size = clipboard_current+1; + } + } + result = &working->clipboards[clipboard_current]; + working->clipboard_current = clipboard_current; + working->clipboard_rolling = clipboard_current; + char *new_str; + if (result->str){ + new_str = (char*)general_memory_reallocate(general, result->str, result->size, str_size); + } + else{ + new_str = (char*)general_memory_allocate(general, str_size+1); + } + // TODO(allen): What if new_str == 0? + *result = make_string(new_str, 0, str_size); + return result; +} + +internal String* +working_set_clipboard_head(Working_Set *working){ + String *result = 0; + if (working->clipboard_size > 0){ + i32 clipboard_index = working->clipboard_current; + working->clipboard_rolling = clipboard_index; + result = &working->clipboards[clipboard_index]; + } + return result; +} + +internal String* +working_set_clipboard_roll_down(Working_Set *working){ + String *result = 0; + if (working->clipboard_size > 0){ + i32 clipboard_index = working->clipboard_rolling; + --clipboard_index; + if (clipboard_index < 0){ + clipboard_index = working->clipboard_size-1; + } + working->clipboard_rolling = clipboard_index; + result = &working->clipboards[clipboard_index]; + } + return result; +} + +internal void +clipboard_copy(System_Functions *system, General_Memory *general, Working_Set *working, Range range, Editing_File *file){ + i32 size = range.end - range.start; + String *dest = working_set_next_clipboard_string(general, working, size); + buffer_stringify(&file->state.buffer, range.start, range.end, dest->str); + dest->size = size; + system->post_clipboard(*dest); +} + +internal Edit_Spec +file_compute_whitespace_edit(Mem_Options *mem, Editing_File *file, i32 cursor_pos, + Buffer_Edit *edits, char *str_base, i32 str_size, + Buffer_Edit *inverse_array, char *inv_str, i32 inv_max, + i32 edit_count){ + General_Memory *general = &mem->general; + + i32 inv_str_pos = 0; + Buffer_Invert_Batch state = {}; + if (buffer_invert_batch(&state, &file->state.buffer, edits, edit_count, + inverse_array, inv_str, &inv_str_pos, inv_max)){ + Assert(0); + } + + i32 first_child = + undo_children_push(general, &file->state.undo.children, + edits, edit_count, (u8*)(str_base), str_size); + i32 inverse_first_child = + undo_children_push(general, &file->state.undo.children, + inverse_array, edit_count, (u8*)(inv_str), inv_str_pos); + + Edit_Spec spec = {}; + spec.step.type = ED_NORMAL; + spec.step.first_child = first_child; + spec.step.inverse_first_child = inverse_first_child; + spec.step.special_type = 1; + spec.step.child_count = edit_count; + spec.step.inverse_child_count = edit_count; + spec.step.pre_pos = cursor_pos; + spec.step.post_pos = cursor_pos; + + return spec; +} + +internal void +view_clean_whitespace(System_Functions *system, Models *models, View *view){ + Mem_Options *mem = &models->mem; + Editing_File *file = view->file_data.file; + + Partition *part = &mem->part; + i32 line_count = file->state.buffer.line_count; + i32 edit_max = line_count * 2; + i32 edit_count = 0; + + Assert(file && !file->is_dummy); + + Temp_Memory temp = begin_temp_memory(part); + Buffer_Edit *edits = push_array(part, Buffer_Edit, edit_max); + + char *str_base = (char*)part->base + part->pos; + i32 str_size = 0; + for (i32 line_i = 0; line_i < line_count; ++line_i){ + i32 start = file->state.buffer.line_starts[line_i]; + Hard_Start_Result hard_start = + buffer_find_hard_start(&file->state.buffer, start, 4); + + if (hard_start.all_whitespace) hard_start.indent_pos = 0; + + if ((hard_start.all_whitespace && hard_start.char_pos > start) || !hard_start.all_space){ + Buffer_Edit new_edit; + new_edit.str_start = str_size; + str_size += hard_start.indent_pos; + char *str = push_array(part, char, hard_start.indent_pos); + for (i32 j = 0; j < hard_start.indent_pos; ++j) str[j] = ' '; + new_edit.len = hard_start.indent_pos; + new_edit.start = start; + new_edit.end = hard_start.char_pos; + edits[edit_count++] = new_edit; + } + Assert(edit_count <= edit_max); + } + + if (edit_count > 0){ + Assert(buffer_batch_debug_sort_check(edits, edit_count)); + + // NOTE(allen): computing edit spec, doing batch edit + Buffer_Edit *inverse_array = push_array(part, Buffer_Edit, edit_count); + Assert(inverse_array); + + char *inv_str = (char*)part->base + part->pos; + Edit_Spec spec = + file_compute_whitespace_edit(mem, file, view->recent->cursor.pos, edits, str_base, str_size, + inverse_array, inv_str, part->max - part->pos, edit_count); + + file_do_white_batch_edit(system, models, view->file_data.file, spec, hist_normal); + } + + end_temp_memory(temp); +} + +struct Indent_Options{ + b32 empty_blank_lines; + b32 use_tabs; + i32 tab_width; +}; + +struct Make_Batch_Result{ + char *str_base; + i32 str_size; + + Buffer_Edit *edits; + i32 edit_max; + i32 edit_count; +}; + +internal Cpp_Token* +get_first_token_at_line(Buffer *buffer, Cpp_Token_Stack tokens, i32 line){ + Cpp_Token *result = 0; + i32 start_pos = 0; + Cpp_Get_Token_Result get_token = {0}; + + start_pos = buffer->line_starts[line]; + get_token = cpp_get_token(&tokens, start_pos); + if (get_token.in_whitespace) get_token.token_index += 1; + result = tokens.tokens + get_token.token_index; + + return(result); +} + +internal Cpp_Token* +seek_matching_token_backwards(Cpp_Token_Stack tokens, Cpp_Token *token, + Cpp_Token_Type open_type, Cpp_Token_Type close_type){ + int nesting_level = 0; + if (token <= tokens.tokens){ + token = tokens.tokens; + } + else{ + for (; token > tokens.tokens; --token){ + if (!(token->flags & CPP_TFLAG_PP_BODY)){ + if (token->type == close_type){ + ++nesting_level; + } + else if (token->type == open_type){ + if (nesting_level == 0){ + break; + } + else{ + --nesting_level; + } + } + } + } + } + return(token); +} + +struct Indent_Parse_State{ + i32 current_indent; + i32 previous_line_indent; + i32 paren_nesting; + i32 paren_anchor_indent[16]; +}; + +internal i32 +compute_this_indent(Buffer *buffer, Indent_Parse_State indent, + Cpp_Token T, Cpp_Token prev_token, i32 line_i, i32 tab_width){ + + i32 previous_indent = indent.previous_line_indent; + i32 this_indent = 0; + + i32 this_line_start = buffer->line_starts[line_i]; + i32 next_line_start = 0; + + if (line_i+1 < buffer->line_count){ + next_line_start = buffer->line_starts[line_i+1]; + } + else{ + next_line_start = buffer_size(buffer); + } + + if ((prev_token.type == CPP_TOKEN_COMMENT || prev_token.type == CPP_TOKEN_STRING_CONSTANT) && + prev_token.start <= this_line_start && prev_token.start + prev_token.size > this_line_start){ + this_indent = previous_indent; + } + else{ + this_indent = indent.current_indent; + if (T.start < next_line_start){ + if (T.flags & CPP_TFLAG_PP_DIRECTIVE){ + this_indent = 0; + } + else{ + switch (T.type){ + case CPP_TOKEN_BRACKET_CLOSE: this_indent -= tab_width; break; + case CPP_TOKEN_BRACE_CLOSE: this_indent -= tab_width; break; + case CPP_TOKEN_BRACE_OPEN: break; + + default: + if (indent.current_indent > 0){ + if (!(prev_token.flags & CPP_TFLAG_PP_BODY || + prev_token.flags & CPP_TFLAG_PP_DIRECTIVE)){ + switch (prev_token.type){ + case CPP_TOKEN_BRACKET_OPEN: + case CPP_TOKEN_BRACE_OPEN: case CPP_TOKEN_BRACE_CLOSE: + case CPP_TOKEN_SEMICOLON: case CPP_TOKEN_COLON: + case CPP_TOKEN_COMMA: case CPP_TOKEN_COMMENT: break; + default: this_indent += tab_width; + } + } + } + } + } + } + if (this_indent < 0) this_indent = 0; + } + + if (indent.paren_nesting > 0){ + i32 level = indent.paren_nesting-1; + if (level >= ArrayCount(indent.paren_anchor_indent)){ + level = ArrayCount(indent.paren_anchor_indent)-1; + } + this_indent = indent.paren_anchor_indent[level]; + } + return(this_indent); +} + +internal i32* +get_line_indentation_marks(Partition *part, Buffer *buffer, Cpp_Token_Stack tokens, + i32 line_start, i32 line_end, i32 tab_width){ + + i32 indent_mark_count = line_end - line_start; + i32 *indent_marks = push_array(part, i32, indent_mark_count); + + Indent_Parse_State indent = {0}; + Cpp_Token *token = get_first_token_at_line(buffer, tokens, line_start); + + if (token != tokens.tokens){ + --token; + for (; token > tokens.tokens; --token){ + if (!(token->flags & CPP_TFLAG_PP_BODY)){ + switch(token->type){ + case CPP_TOKEN_BRACE_OPEN: + case CPP_TOKEN_BRACE_CLOSE: + goto out_of_loop; + } + } + } + out_of_loop:; + } + + // TODO(allen): This can maybe be it's own function now, so that we + // can do the decls in the order we want and avoid the extra binary search. + i32 found_safe_start_position = 0; + do{ + i32 line = buffer_get_line_index(buffer, token->start); + i32 start = buffer->line_starts[line]; + Hard_Start_Result hard_start = buffer_find_hard_start(buffer, start, tab_width); + + indent.current_indent = hard_start.indent_pos; + + Cpp_Token *start_token = get_first_token_at_line(buffer, tokens, line); + Cpp_Token *brace_token = token; + + if (start_token->type == CPP_TOKEN_PARENTHESE_OPEN){ + if (start_token == tokens.tokens){ + found_safe_start_position = 1; + } + else{ + token = start_token-1; + } + } + else{ + int close = 0; + + for (token = brace_token; token >= start_token; --token){ + switch(token->type){ + case CPP_TOKEN_PARENTHESE_CLOSE: + case CPP_TOKEN_BRACKET_CLOSE: + case CPP_TOKEN_BRACE_CLOSE: + close = token->type; + goto out_of_loop2; + } + } + out_of_loop2:; + + switch (close){ + case 0: token = start_token; found_safe_start_position = 1; break; + + case CPP_TOKEN_PARENTHESE_CLOSE: + token = seek_matching_token_backwards(tokens, token-1, + CPP_TOKEN_PARENTHESE_OPEN, + CPP_TOKEN_PARENTHESE_CLOSE); + break; + + case CPP_TOKEN_BRACKET_CLOSE: + token = seek_matching_token_backwards(tokens, token-1, + CPP_TOKEN_BRACKET_OPEN, + CPP_TOKEN_BRACKET_CLOSE); + break; + + case CPP_TOKEN_BRACE_CLOSE: + token = seek_matching_token_backwards(tokens, token-1, + CPP_TOKEN_BRACE_OPEN, + CPP_TOKEN_BRACE_CLOSE); + break; + } + } + } while(found_safe_start_position == 0); + + // NOTE(allen): Shift the array so that line_i can just operate in + // it's natural value range. + indent_marks -= line_start; + + i32 line_i = buffer_get_line_index(buffer, token->start); + + if (line_i > line_start){ + line_i = line_start; + } + + i32 next_line_start = buffer->line_starts[line_i+1]; + switch (token->type){ + case CPP_TOKEN_BRACKET_OPEN: indent.current_indent += tab_width; break; + case CPP_TOKEN_BRACE_OPEN: indent.current_indent += tab_width; break; + } + + indent.previous_line_indent = indent.current_indent; + Cpp_Token T; + Cpp_Token prev_token = *token; + ++token; + + for (; line_i < line_end; ++token){ + if (token < tokens.tokens + tokens.count){ + T = *token; + } + else{ + T.type = CPP_TOKEN_EOF; + T.start = buffer_size(buffer); + T.flags = 0; + } + + for (; T.start >= next_line_start && line_i < line_end;){ + if (line_i+1 < buffer->line_count){ + next_line_start = buffer->line_starts[line_i+1]; + } + else{ + next_line_start = buffer_size(buffer); + } + + // TODO(allen): Since this is called in one place we can probably go back + // to directly passing in next_line_start and this_line_start. + i32 this_indent = compute_this_indent(buffer, indent, T, prev_token, line_i, tab_width); + + if (line_i >= line_start){ + indent_marks[line_i] = this_indent; + } + ++line_i; + + indent.previous_line_indent = this_indent; + } + + switch (T.type){ + case CPP_TOKEN_BRACKET_OPEN: indent.current_indent += 4; break; + case CPP_TOKEN_BRACKET_CLOSE: indent.current_indent -= 4; break; + case CPP_TOKEN_BRACE_OPEN: indent.current_indent += 4; break; + case CPP_TOKEN_BRACE_CLOSE: indent.current_indent -= 4; break; + + case CPP_TOKEN_PARENTHESE_OPEN: + if (!(T.flags & CPP_TFLAG_PP_BODY)){ + if (indent.paren_nesting < ArrayCount(indent.paren_anchor_indent)){ + i32 line = buffer_get_line_index(buffer, T.start); + i32 start = buffer->line_starts[line]; + i32 char_pos = T.start - start; + + Hard_Start_Result hard_start = buffer_find_hard_start( + buffer, start, tab_width); + + i32 line_pos = hard_start.char_pos - start; + + indent.paren_anchor_indent[indent.paren_nesting] = + char_pos - line_pos + indent.previous_line_indent + 1; + } + ++indent.paren_nesting; + } + break; + + case CPP_TOKEN_PARENTHESE_CLOSE: + if (!(T.flags & CPP_TFLAG_PP_BODY)){ + --indent.paren_nesting; + } + break; + } + prev_token = T; + } + + // NOTE(allen): Unshift the indent_marks array so that the return value + // is the exact starting point of the array that was actually allocated. + indent_marks += line_start; + + return(indent_marks); +} + +internal Make_Batch_Result +make_batch_from_indent_marks(Partition *part, Buffer *buffer, i32 line_start, i32 line_end, + i32 *indent_marks, Indent_Options opts){ + + Make_Batch_Result result = {0}; + + i32 edit_max = line_end - line_start; + i32 edit_count = 0; + + Buffer_Edit *edits = push_array(part, Buffer_Edit, edit_max); + + char *str_base = (char*)part->base + part->pos; + i32 str_size = 0; + + // NOTE(allen): Shift the array so that line_i can just operate in + // it's natural value range. + indent_marks -= line_start; + + for (i32 line_i = line_start; line_i < line_end; ++line_i){ + i32 start = buffer->line_starts[line_i]; + Hard_Start_Result hard_start = + buffer_find_hard_start(buffer, start, opts.tab_width); + + i32 correct_indentation = indent_marks[line_i]; + if (hard_start.all_whitespace && opts.empty_blank_lines) correct_indentation = 0; + if (correct_indentation == -1) correct_indentation = hard_start.indent_pos; + + if ((hard_start.all_whitespace && hard_start.char_pos > start) || + !hard_start.all_space || correct_indentation != hard_start.indent_pos){ + Buffer_Edit new_edit; + new_edit.str_start = str_size; + str_size += correct_indentation; + char *str = push_array(part, char, correct_indentation); + i32 j = 0; + if (opts.use_tabs){ + i32 i = 0; + for (; i + opts.tab_width <= correct_indentation; i += opts.tab_width) str[j++] = '\t'; + for (; i < correct_indentation; ++i) str[j++] = ' '; + } + else{ + for (; j < correct_indentation; ++j) str[j] = ' '; + } + new_edit.len = j; + new_edit.start = start; + new_edit.end = hard_start.char_pos; + edits[edit_count++] = new_edit; + } + + Assert(edit_count <= edit_max); + } + + result.str_base = str_base; + result.str_size = str_size; + + result.edits = edits; + result.edit_max = edit_max; + result.edit_count = edit_count; + + return(result); +} + +internal void +view_auto_tab_tokens(System_Functions *system, Models *models, + View *view, i32 start, i32 end, Indent_Options opts){ +#if BUFFER_EXPERIMENT_SCALPEL <= 0 + Editing_File *file = view->file_data.file; + Mem_Options *mem = &models->mem; + Partition *part = &mem->part; + Buffer *buffer = &file->state.buffer; + + Assert(file && !file->is_dummy); + Cpp_Token_Stack tokens = file->state.token_stack; + Assert(tokens.tokens); + + i32 line_start = buffer_get_line_index(buffer, start); + i32 line_end = buffer_get_line_index(buffer, end) + 1; + + Temp_Memory temp = begin_temp_memory(part); + + i32 *indent_marks = + get_line_indentation_marks(part, buffer, tokens, line_start, line_end, opts.tab_width); + + Make_Batch_Result batch = + make_batch_from_indent_marks(part, buffer, line_start, line_end, indent_marks, opts); + + if (batch.edit_count > 0){ + Assert(buffer_batch_debug_sort_check(batch.edits, batch.edit_count)); + + // NOTE(allen): computing edit spec, doing batch edit + Buffer_Edit *inverse_array = push_array(part, Buffer_Edit, batch.edit_count); + Assert(inverse_array); + + char *inv_str = (char*)part->base + part->pos; + Edit_Spec spec = + file_compute_whitespace_edit(mem, file, view->recent->cursor.pos, + batch.edits, batch.str_base, batch.str_size, + inverse_array, inv_str, part->max - part->pos, batch.edit_count); + + file_do_white_batch_edit(system, models, view->file_data.file, spec, hist_normal); + } + end_temp_memory(temp); + + { + i32 start = view->recent->cursor.pos; + Hard_Start_Result hard_start = buffer_find_hard_start(buffer, start, 4); + + view_cursor_move(view, hard_start.char_pos); + } +#endif +} + +struct Get_Link_Result{ + b32 in_link; + i32 index; +}; + +internal u32* +style_get_color(Style *style, Cpp_Token token){ + u32 *result; + if (token.flags & CPP_TFLAG_IS_KEYWORD){ + if (token.type == CPP_TOKEN_BOOLEAN_CONSTANT){ + result = &style->main.bool_constant_color; + } + else{ + result = &style->main.keyword_color; + } + } + else if(token.flags & CPP_TFLAG_PP_DIRECTIVE){ + result = &style->main.preproc_color; + } + else{ + switch (token.type){ + case CPP_TOKEN_COMMENT: + result = &style->main.comment_color; + break; + + case CPP_TOKEN_STRING_CONSTANT: + result = &style->main.str_constant_color; + break; + + case CPP_TOKEN_CHARACTER_CONSTANT: + result = &style->main.char_constant_color; + break; + + case CPP_TOKEN_INTEGER_CONSTANT: + result = &style->main.int_constant_color; + break; + + case CPP_TOKEN_FLOATING_CONSTANT: + result = &style->main.float_constant_color; + break; + + case CPP_TOKEN_INCLUDE_FILE: + result = &style->main.include_color; + break; + + default: + result = &style->main.default_color; + break; + } + } + return result; +} + +internal void +remeasure_file_view(System_Functions *system, View *view){ + if (file_is_ready(view->file_data.file)){ + Relative_Scrolling relative = view_get_relative_scrolling(view); + view_measure_wraps(&view->persistent.models->mem.general, view); + view_cursor_move(view, view->recent->cursor.pos); + view->recent->preferred_x = view_get_cursor_x(view); + view_set_relative_scrolling(view, relative); + } +} + +inline void +view_show_menu(View *view, Command_Map *gui_map){ + view->map = gui_map; + view->showing_ui = VUI_Menu; + view->current_scroll = &view->gui_scroll; +} + +inline void +view_show_config(View *view, Command_Map *gui_map){ + view->map = gui_map; + view->showing_ui = VUI_Config; + view->current_scroll = &view->gui_scroll; +} + +inline void +view_show_interactive(System_Functions *system, View *view, + Command_Map *gui_map, Interactive_Action action, + Interactive_Interaction interaction, String query){ + + Models *models = view->persistent.models; + + view->showing_ui = VUI_Interactive; + view->action = action; + view->interaction = interaction; + view->dest = make_fixed_width_string(view->dest_); + view->list_i = 0; + view->current_scroll = &view->gui_scroll; + + view->map = gui_map; + + hot_directory_clean_end(&models->hot_directory); + hot_directory_reload(system, &models->hot_directory, &models->working_set); +} + +inline void +view_show_theme(View *view, Command_Map *gui_map){ + view->map = gui_map; + view->showing_ui = VUI_Theme; + view->color_mode = CV_Mode_Library; + view->color = super_color_create(0xFF000000); + view->current_color_editing = 0; + view->current_scroll = &view->gui_scroll; +} + +inline void +view_show_file(View *view){ + Editing_File *file = view->file_data.file; + if (file){ + view->map = get_map(view->persistent.models, file->settings.base_map_id); + } + else{ + view->map = get_map(view->persistent.models, mapid_global); + } + view->showing_ui = VUI_None; + view->current_scroll = &view->recent->scroll; +} + +internal void +view_save_file(System_Functions *system, Models *models, + Editing_File *file, View *view, String filename, b32 save_as){ + Mem_Options *mem = &models->mem; + Working_Set *working_set = &models->working_set; + + if (!file){ + if (view){ + file = view->file_data.file; + } + else{ + file = working_set_lookup_file(working_set, filename); + } + } + + if (file && buffer_get_sync(file) != SYNC_GOOD){ + if (file_save(system, mem, file, filename.str)){ + if (save_as){ + file_set_name(working_set, file, filename.str); + } + } + } +} + +internal void +view_new_file(System_Functions *system, Models *models, + View *view, String string){ + Working_Set *working_set = &models->working_set; + General_Memory *general = &models->mem.general; + + Editing_File *file = working_set_alloc_always(working_set, general); + file_create_empty(system, models, file, string.str); + working_set_add(system, working_set, file, general); + + view_set_file(view, file, models); + view_show_file(view); + view->map = get_map(models, file->settings.base_map_id); + + Hook_Function *new_file_fnc = models->hooks[hook_new_file]; + if (new_file_fnc){ + models->buffer_param_indices[models->buffer_param_count++] = file->id.id; + new_file_fnc(&models->app_links); + models->buffer_param_count = 0; + file->settings.is_initialized = 1; + } + +#if BUFFER_EXPERIMENT_SCALPEL <= 0 + if (file->settings.tokens_exist){ + file_first_lex_parallel(system, general, file); + } +#endif +} + +internal void +init_normal_file(System_Functions *system, Models *models, Editing_File *file, + char *buffer, i32 size){ + + General_Memory *general = &models->mem.general; + + String val = make_string(buffer, size); + file_create_from_string(system, models, file, file->name.source_path.str, val); + + if (file->settings.tokens_exist){ + file_first_lex_parallel(system, general, file); + } + + for (View_Iter iter = file_view_iter_init(&models->layout, file, 0); + file_view_iter_good(iter); + iter = file_view_iter_next(iter)){ + view_measure_wraps(general, iter.view); + } +} + +internal void +view_open_file(System_Functions *system, Models *models, + View *view, String filename){ + Working_Set *working_set = &models->working_set; + General_Memory *general = &models->mem.general; + Partition *part = &models->mem.part; + + Editing_File *file = working_set_contains(system, working_set, filename); + + if (file == 0){ + File_Loading loading = system->file_load_begin(filename.str); + + if (loading.exists){ + b32 in_general_mem = 0; + Temp_Memory temp = begin_temp_memory(part); + char *buffer = push_array(part, char, loading.size); + + // TODO(allen): How will we get temporary space for large + // buffers? The main partition isn't always big enough + // but getting a general block this large and copying it + // then freeing it is *super* dumb! + if (buffer == 0){ + buffer = (char*)general_memory_allocate(general, loading.size); + if (buffer != 0){ + in_general_mem = 1; + } + } + + if (system->file_load_end(loading, buffer)){ + file = working_set_alloc_always(working_set, general); + if (file){ + file_init_strings(file); + file_set_name(working_set, file, filename.str); + working_set_add(system, working_set, file, general); + + init_normal_file(system, models, file, + buffer, loading.size); + } + } + + if (in_general_mem){ + general_memory_free(general, buffer); + } + + end_temp_memory(temp); + } + } + + if (file){ + if (view){ + view_set_file(view, file, models); + } + } +} + +internal void +kill_file(System_Functions *system, Models *models, + Editing_File *file, String string){ + Working_Set *working_set = &models->working_set; + + if (!file && string.str){ + file = working_set_lookup_file(working_set, string); + if (!file){ + file = working_set_contains(system, working_set, string); + } + } + + if (file && !file->settings.never_kill){ + working_set_remove(system, working_set, file->name.source_path); + file_close(system, &models->mem.general, file); + working_set_free_file(&models->working_set, file); + + File_Node *used = &models->working_set.used_sentinel; + File_Node *node = used->next; + for (View_Iter iter = file_view_iter_init(&models->layout, file, 0); + file_view_iter_good(iter); + iter = file_view_iter_next(iter)){ + if (node != used){ + iter.view->file_data.file = 0; + view_set_file(iter.view, (Editing_File*)node, models); + node = node->next; + } + else{ + iter.view->file_data.file = 0; + view_set_file(iter.view, 0, models); + } + } + } +} + +internal void +try_kill_file(System_Functions *system, Models *models, + Editing_File *file, View *view, String string){ + Working_Set *working_set = &models->working_set; + + if (!file && string.str){ + file = working_set_lookup_file(working_set, string); + if (!file){ + file = working_set_contains(system, working_set, string); + } + } + + if (file && !file->settings.never_kill){ + if (buffer_needs_save(file)){ + if (view == 0){ + view = models->layout.panels[models->layout.active_panel].view; + } + view_show_interactive(system, view, &models->map_ui, + IAct_Sure_To_Kill, IInt_Sure_To_Kill, + make_lit_string("Are you sure?")); + copy(&view->dest, file->name.live_name); + } + else{ + kill_file(system, models, file, string_zero()); + view_show_file(view); + } + } +} + +internal void +interactive_view_complete(System_Functions *system, View *view, String dest, i32 user_action){ + Models *models = view->persistent.models; + Editing_File *old_file = view->file_data.file; + + switch (view->action){ + case IAct_Open: + view_open_file(system, models, view, dest); + touch_file(&models->working_set, old_file); + view_show_file(view); + break; + + case IAct_Save_As: + view_save_file(system, models, 0, view, dest, 1); + view_show_file(view); + break; + + case IAct_New: + if (dest.size > 0 && !char_is_slash(dest.str[dest.size-1])){ + view_new_file(system, models, view, dest); + view_show_file(view); + }break; + + case IAct_Switch: + { + touch_file(&models->working_set, old_file); + + Editing_File *file = 0; + String string = dest; + + file = working_set_lookup_file(&models->working_set, string); + if (!file){ + file = working_set_contains(system, &models->working_set, string); + } + if (file){ + view_set_file(view, file, models); + } + view_show_file(view); + } + break; + + case IAct_Kill: + try_kill_file(system, models, 0, 0, dest); + break; + + case IAct_Sure_To_Close: + switch (user_action){ + case 0: + models->keep_playing = 0; + break; + + case 1: + view_show_file(view); + break; + + case 2: + // TODO(allen): Save all and close. + break; + } + break; + + case IAct_Sure_To_Kill: + switch (user_action){ + case 0: + kill_file(system, models, 0, dest); + view_show_file(view); + break; + + case 1: + view_show_file(view); + break; + + case 2: + view_save_file(system, models, 0, 0, dest, 0); + kill_file(system, models, 0, dest); + view_show_file(view); + break; + } + break; + } +} + +#if 0 +internal void +update_highlighting(View *view){ + View *file_view = view->hot_file_view; + if (!file_view){ + view->highlight = {}; + return; + } + + Editing_File *file = file_view->file; + if (!file || !file_is_ready(file)){ + view->highlight = {}; + return; + } + + Models *models = view->persistent.models; + + Style *style = &models->style; + i32 pos = view_get_cursor_pos(file_view); + char c = buffer_get_char(&file->state.buffer, pos); + + if (c == '\r'){ + view->highlight.ids[0] = + raw_ptr_dif(&style->main.special_character_color, style); + } + + else if (file->state.tokens_complete){ + Cpp_Token_Stack *tokens = &file->state.token_stack; + Cpp_Get_Token_Result result = cpp_get_token(tokens, pos); + Cpp_Token token = tokens->tokens[result.token_index]; + if (!result.in_whitespace){ + u32 *color = style_get_color(style, token); + view->highlight.ids[0] = raw_ptr_dif(color, style); + if (token.type == CPP_TOKEN_JUNK){ + view->highlight.ids[1] = + raw_ptr_dif(&style->main.highlight_junk_color, style); + } + else if (char_is_whitespace(c)){ + view->highlight.ids[1] = + raw_ptr_dif(&style->main.highlight_white_color, style); + } + else{ + view->highlight.ids[1] = 0; + } + } + else{ + view->highlight.ids[0] = 0; + view->highlight.ids[1] = + raw_ptr_dif(&style->main.highlight_white_color, style); + } + } + + else{ + if (char_is_whitespace(c)){ + view->highlight.ids[0] = 0; + view->highlight.ids[1] = + raw_ptr_dif(&style->main.highlight_white_color, style); + } + else{ + view->highlight.ids[0] = + raw_ptr_dif(&style->main.default_color, style); + view->highlight.ids[1] = 0; + } + } + + if (file_view->show_temp_highlight){ + view->highlight.ids[2] = + raw_ptr_dif(&style->main.highlight_color, style); + view->highlight.ids[3] = + raw_ptr_dif(&style->main.at_highlight_color, style); + } + else if (file->state.paste_effect.tick_down > 0){ + view->highlight.ids[2] = + raw_ptr_dif(&style->main.paste_color, style); + view->highlight.ids[3] = 0; + } + else{ + view->highlight.ids[2] = 0; + view->highlight.ids[3] = 0; + } +} +#endif + +struct File_Bar{ + f32 pos_x, pos_y; + f32 text_shift_x, text_shift_y; + i32_Rect rect; + i16 font_id; +}; + +internal void +intbar_draw_string(Render_Target *target, File_Bar *bar, String str, u32 char_color){ + i16 font_id = bar->font_id; + draw_string(target, font_id, str, + (i32)(bar->pos_x + bar->text_shift_x), + (i32)(bar->pos_y + bar->text_shift_y), + char_color); + bar->pos_x += font_string_width(target, font_id, str); +} + +internal void +view_reinit_scrolling(View *view){ + Editing_File *file = view->file_data.file; + f32 w, h; + f32 cursor_x, cursor_y; + f32 target_x, target_y; + + view->reinit_scrolling = 0; + + target_x = 0; + target_y = 0; + + if (file && file_is_ready(file)){ + cursor_x = view_get_cursor_x(view); + cursor_y = view_get_cursor_y(view); + + w = view_file_width(view); + h = view_file_height(view); + + if (cursor_x >= target_x + w){ + target_x = (f32)(cursor_x - w*.5f); + } + + target_y = clamp_bottom(0.f, (f32)FLOOR32(cursor_y - h*.5f)); + } + + view->recent->scroll.target_y = target_y; + view->recent->scroll.scroll_y = target_y; + view->recent->scroll.prev_target_y = -1000.f; + + view->recent->scroll.target_x = target_x; + view->recent->scroll.scroll_x = target_x; + view->recent->scroll.prev_target_x = -1000.f; +} + +enum CursorScroll_State{ + CursorScroll_NoChange = 0x0, + CursorScroll_Cursor = 0x1, + CursorScroll_Scroll = 0x2, + CursorScroll_ContextChange = 0x4 +}; + +internal u32 +view_get_cursor_scroll_change_state(View *view){ + u32 result = 0; + i32 pos = 0; + Scroll_Context context = {0}; + + if (view->gui_target.did_file){ + pos = view_get_cursor_pos(view); + if ((view->prev_cursor_pos != pos)){ + result |= CursorScroll_Cursor; + } + } + + if (view->current_scroll){ + if (!gui_scroll_eq(view->current_scroll, &view->gui_target.scroll_original)){ + result |= CursorScroll_Scroll; + } + } + + if (context.mode == VUI_None){ + context.file = view->file_data.file; + } + else{ + context.file = view->prev_context.file; + } + context.scroll = view->gui_target.scroll_id; + context.mode = view->showing_ui; + + if (!context_eq(view->prev_context, context)){ + result |= CursorScroll_ContextChange; + } + + return(result); +} + +internal void +view_begin_cursor_scroll_updates(View *view){ + if (view->file_data.file && view->file_data.file == view->prev_context.file){ + Assert(view->prev_cursor_pos == view_get_cursor_pos(view)); + } + + view->prev_context.file = view->file_data.file; + view->prev_context.scroll = view->gui_target.scroll_id; + view->prev_context.mode = view->showing_ui; +} + +internal void +view_end_cursor_scroll_updates(View *view){ + i32 cursor_scroll_state = + view_get_cursor_scroll_change_state(view); + + switch (cursor_scroll_state){ + case CursorScroll_NoChange:break; + + case CursorScroll_Cursor: + case CursorScroll_Cursor|CursorScroll_Scroll: + view_move_view_to_cursor(view, view->current_scroll); + gui_post_scroll_vars(&view->gui_target, view->current_scroll, view->scroll_region); + break; + + case CursorScroll_Scroll: + view_move_cursor_to_view(view); + gui_post_scroll_vars(&view->gui_target, view->current_scroll, view->scroll_region); + break; + } + + if (cursor_scroll_state & CursorScroll_ContextChange){ + view->current_scroll->scroll_y = view->current_scroll->target_y; + view->current_scroll->scroll_x = view->current_scroll->target_x; + gui_post_scroll_vars(&view->gui_target, view->current_scroll, view->scroll_region); + } + + if (view->gui_target.did_file){ + view->prev_cursor_pos = view_get_cursor_pos(view); + } +} + +internal b32 +file_step(View *view, i32_Rect region, Input_Summary *user_input, b32 is_active){ + i32 is_animating = 0; + Editing_File *file = view->file_data.file; + if (file && !file->is_loading){ + f32 max_visible_y = view_file_height(view); + f32 max_x = view_file_width(view); + + GUI_Scroll_Vars scroll_vars = *view->current_scroll; + + if (file->state.paste_effect.tick_down > 0){ + --file->state.paste_effect.tick_down; + is_animating = 1; + } + + if (user_input->mouse.press_l && is_active){ + f32 rx = (f32)(user_input->mouse.x - region.x0); + f32 ry = (f32)(user_input->mouse.y - region.y0); + + if (ry >= 0){ + view_set_widget(view, FWIDG_NONE); + if (rx >= 0 && rx < max_x && ry >= 0 && ry < max_visible_y){ + view_cursor_move(view, rx + scroll_vars.scroll_x, ry + scroll_vars.scroll_y, 1); + view->mode = view_mode_zero(); + } + } + } + if (!is_active) view_set_widget(view, FWIDG_NONE); + } + + return(is_animating); +} + +internal void +do_widget(View *view, GUI_Target *target){ + Query_Slot *slot; + Query_Bar *bar; + + for (slot = view->query_set.used_slot; slot != 0; slot = slot->next){ + bar = slot->query_bar; + gui_do_text_field(target, bar->prompt, bar->string); + } +} + +struct Exhaustive_File_Loop{ + char front_name_[256]; + char full_path_[256]; + String front_name, full_path; + + Absolutes absolutes; + + File_Info *infos; + i32 count, r; +}; + +struct Exhaustive_File_Info{ + File_Info *info; + String message; + b8 is_folder; + b8 name_match; + b8 is_loaded; +}; + +internal void +begin_exhaustive_loop(Exhaustive_File_Loop *loop, Hot_Directory *hdir){ + loop->front_name = make_fixed_width_string(loop->front_name_); + loop->full_path = make_fixed_width_string(loop->full_path_); + + loop->infos = hdir->file_list.infos; + loop->count = hdir->file_list.count; + + get_front_of_directory(&loop->front_name, hdir->string); + get_absolutes(loop->front_name, &loop->absolutes, 1, 1); + get_path_of_directory(&loop->full_path, hdir->string); + loop->r = loop->full_path.size; +} + +internal Exhaustive_File_Info +get_exhaustive_info(System_Functions *system, Working_Set *working_set, Exhaustive_File_Loop *loop, i32 i){ + persist String message_loaded = make_lit_string(" LOADED"); + persist String message_unsaved = make_lit_string(" LOADED *"); + persist String message_unsynced = make_lit_string(" LOADED !"); + + Exhaustive_File_Info result = {0}; + Editing_File *file = 0; + + result.info = loop->infos + i; + loop->full_path.size = loop->r; + append(&loop->full_path, result.info->filename); + terminate_with_null(&loop->full_path); + file = working_set_contains(system, working_set, loop->full_path); + + result.is_folder = (result.info->folder != 0); + result.name_match = (filename_match(loop->front_name, &loop->absolutes, result.info->filename, 0) != 0); + result.is_loaded = (file != 0 && file_is_ready(file)); + + result.message = string_zero(); + if (result.is_loaded){ + switch (buffer_get_sync(file)){ + case SYNC_GOOD: result.message = message_loaded; break; + case SYNC_BEHIND_OS: result.message = message_unsynced; break; + case SYNC_UNSAVED: result.message = message_unsaved; break; + } + } + + return(result); +} + +struct Style_Color_Edit{ + Style_Tag target; + Style_Tag fore; + Style_Tag back; + String text; +}; + +static Style_Color_Edit colors_to_edit[] = { + {Stag_Back, Stag_Default, Stag_Back, make_lit_string("Background")}, + {Stag_Margin, Stag_Default, Stag_Margin, make_lit_string("Margin")}, + {Stag_Margin_Hover, Stag_Default, Stag_Margin_Hover, make_lit_string("Margin Hover")}, + {Stag_Margin_Active, Stag_Default, Stag_Margin_Active, make_lit_string("Margin Active")}, + + {Stag_Cursor, Stag_At_Cursor, Stag_Cursor, make_lit_string("Cursor")}, + {Stag_At_Cursor, Stag_At_Cursor, Stag_Cursor, make_lit_string("Text At Cursor")}, + {Stag_Mark, Stag_Mark, Stag_Back, make_lit_string("Mark")}, + + {Stag_Highlight, Stag_At_Highlight, Stag_Highlight, make_lit_string("Highlight")}, + {Stag_At_Highlight, Stag_At_Highlight, Stag_Highlight, make_lit_string("Text At Highlight")}, + + {Stag_Default, Stag_Default, Stag_Back, make_lit_string("Text Default")}, + {Stag_Comment, Stag_Comment, Stag_Back, make_lit_string("Comment")}, + {Stag_Keyword, Stag_Keyword, Stag_Back, make_lit_string("Keyword")}, + {Stag_Str_Constant, Stag_Str_Constant, Stag_Back, make_lit_string("String Constant")}, + {Stag_Char_Constant, Stag_Char_Constant, Stag_Back, make_lit_string("Character Constant")}, + {Stag_Int_Constant, Stag_Int_Constant, Stag_Back, make_lit_string("Integer Constant")}, + {Stag_Float_Constant, Stag_Float_Constant, Stag_Back, make_lit_string("Float Constant")}, + {Stag_Bool_Constant, Stag_Bool_Constant, Stag_Back, make_lit_string("Boolean Constant")}, + {Stag_Preproc, Stag_Preproc, Stag_Back, make_lit_string("Preprocessor")}, + {Stag_Special_Character, Stag_Special_Character, Stag_Back, make_lit_string("Special Character")}, + + {Stag_Highlight_Junk, Stag_Default, Stag_Highlight_Junk, make_lit_string("Junk Highlight")}, + {Stag_Highlight_White, Stag_Default, Stag_Highlight_White, make_lit_string("Whitespace Highlight")}, + + {Stag_Paste, Stag_Paste, Stag_Back, make_lit_string("Paste Color")}, + + {Stag_Bar, Stag_Base, Stag_Bar, make_lit_string("Bar")}, + {Stag_Base, Stag_Base, Stag_Bar, make_lit_string("Bar Text")}, + {Stag_Pop1, Stag_Pop1, Stag_Bar, make_lit_string("Bar Pop 1")}, + {Stag_Pop2, Stag_Pop2, Stag_Bar, make_lit_string("Bar Pop 2")}, +}; + +struct Single_Line_Input_Step{ + b8 hit_newline; + b8 hit_ctrl_newline; + b8 hit_a_character; + b8 hit_backspace; + b8 hit_esc; + b8 made_a_change; + b8 did_command; + b8 no_file_match; +}; + +enum Single_Line_Input_Type{ + SINGLE_LINE_STRING, + SINGLE_LINE_FILE +}; + +struct Single_Line_Mode{ + Single_Line_Input_Type type; + String *string; + Hot_Directory *hot_directory; + b32 fast_folder_select; + b32 try_to_match; + b32 case_sensitive; +}; + +internal Single_Line_Input_Step +app_single_line_input_core(System_Functions *system, Working_Set *working_set, + Key_Event_Data key, Single_Line_Mode mode){ + Single_Line_Input_Step result = {0}; + + if (key.keycode == key_back){ + result.hit_backspace = 1; + if (mode.string->size > 0){ + result.made_a_change = 1; + --mode.string->size; + switch (mode.type){ + case SINGLE_LINE_STRING: + { + mode.string->str[mode.string->size] = 0; + }break; + + case SINGLE_LINE_FILE: + { + char end_character = mode.string->str[mode.string->size]; + if (char_is_slash(end_character)){ + mode.string->size = reverse_seek_slash(*mode.string) + 1; + mode.string->str[mode.string->size] = 0; + hot_directory_set(system, mode.hot_directory, *mode.string, working_set); + } + else{ + mode.string->str[mode.string->size] = 0; + } + }break; + } + } + } + + else if (key.character == '\n' || key.character == '\t'){ + // NOTE(allen): do nothing! + } + + else if (key.keycode == key_esc){ + result.hit_esc = 1; + result.made_a_change = 1; + } + + else if (key.character){ + result.hit_a_character = 1; + if (!key.modifiers[MDFR_CONTROL_INDEX] && + !key.modifiers[MDFR_ALT_INDEX]){ + if (mode.string->size+1 < mode.string->memory_size){ + u8 new_character = (u8)key.character; + mode.string->str[mode.string->size] = new_character; + mode.string->size++; + mode.string->str[mode.string->size] = 0; + if (mode.type == SINGLE_LINE_FILE && char_is_slash(new_character)){ + hot_directory_set(system, mode.hot_directory, *mode.string, working_set); + } + result.made_a_change = 1; + } + } + else{ + result.did_command = 1; + result.made_a_change = 1; + } + } + + return result; +} + +inline Single_Line_Input_Step +app_single_line_input_step(System_Functions *system, Key_Event_Data key, String *string){ + Single_Line_Mode mode = {}; + mode.type = SINGLE_LINE_STRING; + mode.string = string; + return app_single_line_input_core(system, 0, key, mode); +} + +inline Single_Line_Input_Step +app_single_file_input_step(System_Functions *system, + Working_Set *working_set, Key_Event_Data key, + String *string, Hot_Directory *hot_directory, + b32 fast_folder_select, b32 try_to_match, b32 case_sensitive){ + Single_Line_Mode mode = {}; + mode.type = SINGLE_LINE_FILE; + mode.string = string; + mode.hot_directory = hot_directory; + mode.fast_folder_select = fast_folder_select; + mode.try_to_match = try_to_match; + mode.case_sensitive = case_sensitive; + return app_single_line_input_core(system, working_set, key, mode); +} + +inline Single_Line_Input_Step +app_single_number_input_step(System_Functions *system, Key_Event_Data key, String *string){ + Single_Line_Input_Step result = {}; + Single_Line_Mode mode = {}; + mode.type = SINGLE_LINE_STRING; + mode.string = string; + + char c = (char)key.character; + if (c == 0 || c == '\n' || char_is_numeric(c)) + result = app_single_line_input_core(system, 0, key, mode); + return result; +} + +struct View_Step_Result{ + b32 animating; + b32 consume_keys; + b32 consume_esc; +}; + +internal View_Step_Result +step_file_view(System_Functions *system, View *view, View *active_view, Input_Summary input){ + View_Step_Result result = {0}; + GUI_Target *target = &view->gui_target; + Models *models = view->persistent.models; + Key_Summary keys = input.keys; + + b32 show_scrollbar = !view->hide_scrollbar; + + view->current_scroll = 0; + + if (view->showing_ui != VUI_None){ + b32 did_esc = 0; + Key_Event_Data key; + i32 i; + + for (i = 0; i < keys.count; ++i){ + key = get_single_key(&keys, i); + if (key.keycode == key_esc){ + did_esc = 1; + break; + } + } + + if (did_esc){ + view_show_file(view); + result.consume_esc = 1; + } + } + + gui_begin_top_level(target, input); + { + gui_do_top_bar(target); + do_widget(view, target); + + if (view->showing_ui == VUI_None){ + + gui_begin_serial_section(target); + { + f32 delta = 9.f * view->font_height; + GUI_id scroll_context = {0}; + scroll_context.id[1] = view->showing_ui; + scroll_context.id[0] = (u64)(view->file_data.file); + + view->current_scroll = &view->recent->scroll; + gui_get_scroll_vars(target, scroll_context, + &view->recent->scroll, &view->scroll_region); + + gui_begin_scrollable(target, scroll_context, view->recent->scroll, + delta, show_scrollbar); + gui_do_file(target); + gui_end_scrollable(target); + } + gui_end_serial_section(target); + } + else{ + switch (view->showing_ui){ + case VUI_Menu: + { + view->current_scroll = &view->gui_scroll; + + String message = make_lit_string("Menu"); + String empty_string = {0}; + GUI_id id = {0}; + id.id[1] = VUI_Menu; + + gui_do_text_field(target, message, empty_string); + + id.id[0] = 0; + message = make_lit_string("Theme"); + if (gui_do_fixed_option(target, id, message, 0)){ + view_show_theme(view, view->map); + } + + id.id[0] = 1; + message = make_lit_string("Config"); + if (gui_do_fixed_option(target, id, message, 0)){ + view_show_config(view, view->map); + } + }break; + + case VUI_Config: + { + view->current_scroll = &view->gui_scroll; + + String message = make_lit_string("Config"); + String empty_string = {0}; + GUI_id id = {0}; + id.id[1] = VUI_Config; + + gui_do_text_field(target, message, empty_string); + + id.id[0] = 0; + message = make_lit_string("Left Ctrl + Left Alt = AltGr"); + if (gui_do_fixed_option_checkbox(target, id, message, 0, (b8)models->settings.lctrl_lalt_is_altgr)){ + models->settings.lctrl_lalt_is_altgr = !models->settings.lctrl_lalt_is_altgr; + } + }break; + + case VUI_Theme: + { + view->current_scroll = &view->gui_scroll; + + if (view != active_view){ + view->hot_file_view = active_view; + } + + String message = {0}; + String empty_string = {0}; + + GUI_id id = {0}; + id.id[1] = VUI_Theme + ((u64)view->color_mode << 32); + + GUI_id scroll_context = {0}; + scroll_context.id[0] = 0; + scroll_context.id[1] = VUI_Theme + ((u64)view->color_mode << 32); + + switch (view->color_mode){ + case CV_Mode_Library: + message = make_lit_string("Current Theme - Click to Edit"); + gui_do_text_field(target, message, empty_string); + + id.id[0] = (u64)(main_style(models)); + if (gui_do_style_preview(target, id, 0)){ + view->color_mode = CV_Mode_Adjusting; + } + + message = make_lit_string("Set Font"); + id.id[0] = (u64)(&models->global_font); + if (gui_do_button(target, id, message)){ + view->color_mode = CV_Mode_Font; + } + + message = make_lit_string("Theme Library - Click to Select"); + gui_do_text_field(target, message, empty_string); + + view->current_scroll = &view->gui_scroll; + gui_get_scroll_vars(target, scroll_context, &view->gui_scroll, &view->scroll_region); + gui_begin_scrollable(target, scroll_context, view->gui_scroll, + 9.f * view->font_height, show_scrollbar); + + { + i32 count = models->styles.count; + Style *style; + i32 i; + + for (i = 1; i < count; ++i, ++style){ + style = get_style(models, i); + id.id[0] = (u64)(style); + if (gui_do_style_preview(target, id, i)){ + style_copy(main_style(models), style); + } + } + } + + gui_end_scrollable(target); + break; + + case CV_Mode_Font: + { + Font_Set *font_set = models->font_set; + Font_Info *info = 0; + + i16 i = 1, count = (i16)models->font_set->count + 1; + i16 font_id = 0, new_font_id = 0; + + String message = make_lit_string("Back"); + + id.id[0] = 0; + if (gui_do_button(target, id, message)){ + view->color_mode = CV_Mode_Library; + } + + font_id = models->global_font.font_id; + new_font_id = font_id; + + for (i = 1; i < count; ++i){ + info = get_font_info(font_set, i); + id.id[0] = (u64)i; + if (i != font_id){ + if (gui_do_font_button(target, id, i, info->name)){ + new_font_id = i; + } + } + else{ + char message_space[256]; + message = make_fixed_width_string(message_space); + copy(&message, make_lit_string("currently selected: ")); + append(&message, info->name); + gui_do_font_button(target, id, i, message); + } + } + + models->global_font.font_id = (i16)(new_font_id); + }break; + + case CV_Mode_Adjusting: + { + Style *style = main_style(models); + u32 *edit_color = 0; + u32 *fore = 0, *back = 0; + i32 i = 0; + + String message = make_lit_string("Back"); + + id.id[0] = 0; + if (gui_do_button(target, id, message)){ + view->color_mode = CV_Mode_Library; + } + + view->current_scroll = &view->gui_scroll; + gui_get_scroll_vars(target, scroll_context, &view->gui_scroll, &view->scroll_region); + gui_begin_scrollable(target, scroll_context, view->gui_scroll, + 9.f * view->font_height, show_scrollbar); + + i32 next_color_editing = view->current_color_editing; + + for (i = 0; i < ArrayCount(colors_to_edit); ++i){ + edit_color = style_index_by_tag(&style->main, colors_to_edit[i].target); + id.id[0] = (u64)(edit_color); + + fore = style_index_by_tag(&style->main, colors_to_edit[i].fore); + back = style_index_by_tag(&style->main, colors_to_edit[i].back); + + if (gui_do_color_button(target, id, *fore, *back, colors_to_edit[i].text)){ + next_color_editing = i; + view->color_cursor = 0; + } + + if (view->current_color_editing == i){ + GUI_Item_Update update = {0}; + char text_space[7]; + String text = make_fixed_width_string(text_space); + + color_to_hexstr(*edit_color, &text); + if (gui_do_text_with_cursor(target, view->color_cursor, text, &update)){ + b32 r = 0; + i32 j = 0; + + for (j = 0; j < keys.count; ++j){ + i16 key = keys.keys[j].keycode; + switch (key){ + case key_left: --view->color_cursor; r = 1; result.consume_keys = 1; break; + case key_right: ++view->color_cursor; r = 1; result.consume_keys = 1; break; + + case key_up: + if (next_color_editing > 0){ + --next_color_editing; + } + result.consume_keys = 1; + break; + + case key_down: + if (next_color_editing <= ArrayCount(colors_to_edit)-1){ + ++next_color_editing; + } + result.consume_keys = 1; + break; + + default: + if ((key >= '0' && key <= '9') || (key >= 'a' && key <= 'f') || (key >= 'A' && key <= 'F')){ + text.str[view->color_cursor] = (char)key; + r = 1; + result.consume_keys = 1; + } + break; + } + + if (view->color_cursor < 0) view->color_cursor = 0; + if (view->color_cursor >= 6) view->color_cursor = 5; + } + + if (r){ + hexstr_to_color(text, edit_color); + gui_rollback(target, &update); + gui_do_text_with_cursor(target, view->color_cursor, text, 0); + } + } + } + } + + if (view->current_color_editing != next_color_editing){ + view->current_color_editing = next_color_editing; + view->color_cursor = 0; + } + + gui_end_scrollable(target); + }break; + } + }break; + + case VUI_Interactive: + { + b32 complete = 0; + char comp_dest_space[1024]; + String comp_dest = make_fixed_width_string(comp_dest_space); + i32 comp_action = 0; + + view->current_scroll = &view->gui_scroll; + + GUI_id id = {0}; + id.id[1] = VUI_Interactive + ((u64)view->interaction << 32); + + GUI_id scroll_context = {0}; + scroll_context.id[1] = VUI_Interactive + ((u64)view->interaction << 32); + + switch (view->interaction){ + case IInt_Sys_File_List: + { + b32 use_item_in_list = 1; + b32 activate_directly = 0; + + if (view->action == IAct_Save_As || view->action == IAct_New){ + use_item_in_list = 0; + } + + String message = {0}; + switch (view->action){ + case IAct_Open: message = make_lit_string("Open: "); break; + case IAct_Save_As: message = make_lit_string("Save As: "); break; + case IAct_New: message = make_lit_string("New: "); break; + } + + Exhaustive_File_Loop loop; + Exhaustive_File_Info file_info; + + GUI_Item_Update update = {0}; + Hot_Directory *hdir = &models->hot_directory; + b32 do_new_directory = 0; + b32 snap_into_view = 0; + i32 i = 0; + + { + Single_Line_Input_Step step = {0}; + Key_Event_Data key = {0}; + i32 i; + + for (i = 0; i < keys.count; ++i){ + key = get_single_key(&keys, i); + step = app_single_file_input_step(system, &models->working_set, key, + &hdir->string, hdir, 1, 1, 0); + if (step.made_a_change){ + view->list_i = 0; + result.consume_keys = 1; + } + if (!use_item_in_list && (key.keycode == '\n' || key.keycode == '\t')){ + activate_directly = 1; + result.consume_keys = 1; + } + } + } + + gui_do_text_field(target, message, hdir->string); + + scroll_context.id[0] = (u64)(hdir); + if (gui_get_scroll_vars(target, scroll_context, + &view->gui_scroll, &view->scroll_region)){ + snap_into_view = 1; + } + gui_begin_scrollable(target, scroll_context, view->gui_scroll, + 9.f * view->font_height, show_scrollbar); + + id.id[0] = (u64)(hdir) + 1; + + if (gui_begin_list(target, id, view->list_i, 0, + snap_into_view, &update)){ + // TODO(allen): Allow me to handle key consumption correctly here! + gui_standard_list(target, id, view->current_scroll, view->scroll_region, + &keys, &view->list_i, &update); + } + + { + begin_exhaustive_loop(&loop, hdir); + for (i = 0; i < loop.count; ++i){ + file_info = get_exhaustive_info(system, &models->working_set, &loop, i); + + if (file_info.name_match){ + id.id[0] = (u64)(file_info.info); + if (gui_do_file_option(target, id, file_info.info->filename, + file_info.is_folder, file_info.message)){ + if (file_info.is_folder){ + set_last_folder(&hdir->string, file_info.info->filename, '/'); + do_new_directory = 1; + } + else if (use_item_in_list){ + complete = 1; + copy(&comp_dest, loop.full_path); + } + } + } + } + } + + gui_end_list(target); + + if (activate_directly){ + complete = 1; + copy(&comp_dest, hdir->string); + } + + if (do_new_directory){ + hot_directory_reload(system, hdir, &models->working_set); + } + + gui_end_scrollable(target); + }break; + + case IInt_Live_File_List: + { + b32 snap_into_view = 0; + persist String message_unsaved = make_lit_string(" *"); + persist String message_unsynced = make_lit_string(" !"); + + String message = {0}; + switch (view->action){ + case IAct_Switch: message = make_lit_string("Switch: "); break; + case IAct_Kill: message = make_lit_string("Kill: "); break; + } + + Absolutes absolutes; + Editing_File *file; + Working_Set *working_set = &models->working_set; + Editing_Layout *layout = &models->layout; + GUI_Item_Update update = {0}; + + { + Single_Line_Input_Step step; + Key_Event_Data key; + i32 i; + for (i = 0; i < keys.count; ++i){ + key = get_single_key(&keys, i); + step = app_single_line_input_step(system, key, &view->dest); + if (step.made_a_change){ + view->list_i = 0; + result.consume_keys = 1; + } + } + } + + get_absolutes(view->dest, &absolutes, 1, 1); + + gui_do_text_field(target, message, view->dest); + + scroll_context.id[0] = (u64)(working_set); + if (gui_get_scroll_vars(target, scroll_context, + &view->gui_scroll, &view->scroll_region)){ + snap_into_view = 1; + } + gui_begin_scrollable(target, scroll_context, view->gui_scroll, + 9.f * view->font_height, show_scrollbar); + + id.id[0] = (u64)(working_set) + 1; + if (gui_begin_list(target, id, view->list_i, + 0, snap_into_view, &update)){ + gui_standard_list(target, id, view->current_scroll, view->scroll_region, + &keys, &view->list_i, &update); + } + + { + Partition *part = &models->mem.part; + Temp_Memory temp = begin_temp_memory(part); + File_Node *node = 0, *used_nodes = 0; + Editing_File **reserved_files = 0; + i32 reserved_top = 0, i = 0; + View_Iter iter = {0}; + + partition_align(part, sizeof(i32)); + reserved_files = (Editing_File**)partition_current(part); + + used_nodes = &working_set->used_sentinel; + for (dll_items(node, used_nodes)){ + file = (Editing_File*)node; + Assert(!file->is_dummy); + + if (filename_match(view->dest, &absolutes, file->name.live_name, 1)){ + iter = file_view_iter_init(layout, file, 0); + if (file_view_iter_good(iter)){ + reserved_files[reserved_top++] = file; + } + else{ + if (file->name.live_name.str[0] == '*'){ + reserved_files[reserved_top++] = file; + } + else{ + message = string_zero(); + switch (buffer_get_sync(file)){ + case SYNC_BEHIND_OS: message = message_unsynced; break; + case SYNC_UNSAVED: message = message_unsaved; break; + } + + id.id[0] = (u64)(file); + if (gui_do_file_option(target, id, file->name.live_name, 0, message)){ + complete = 1; + copy(&comp_dest, file->name.live_name); + } + } + } + } + } + + for (i = 0; i < reserved_top; ++i){ + file = reserved_files[i]; + + message = string_zero(); + switch (buffer_get_sync(file)){ + case SYNC_BEHIND_OS: message = message_unsynced; break; + case SYNC_UNSAVED: message = message_unsaved; break; + } + + id.id[0] = (u64)(file); + if (gui_do_file_option(target, id, file->name.live_name, 0, message)){ + complete = 1; + copy(&comp_dest, file->name.live_name); + } + } + + end_temp_memory(temp); + } + + gui_end_list(target); + + gui_end_scrollable(target); + }break; + + case IInt_Sure_To_Close: + { + i32 action = -1; + + String empty_str = {0}; + String message = make_lit_string("There is one or more files unsaved changes, close anyway?"); + + gui_do_text_field(target, message, empty_str); + + id.id[0] = (u64)('y'); + message = make_lit_string("(Y)es"); + if (gui_do_fixed_option(target, id, message, 'y')){ + action = 0; + } + + id.id[0] = (u64)('n'); + message = make_lit_string("(N)o"); + if (gui_do_fixed_option(target, id, message, 'n')){ + action = 1; + } + + if (action != -1){ + complete = 1; + copy(&comp_dest, view->dest); + comp_action = action; + } + }break; + + case IInt_Sure_To_Kill: + { + i32 action = -1; + + String empty_str = {0}; + String message = make_lit_string("There are unsaved changes, close anyway?"); + + gui_do_text_field(target, message, empty_str); + + id.id[0] = (u64)('y'); + message = make_lit_string("(Y)es"); + if (gui_do_fixed_option(target, id, message, 'y')){ + action = 0; + } + + id.id[0] = (u64)('n'); + message = make_lit_string("(N)o"); + if (gui_do_fixed_option(target, id, message, 'n')){ + action = 1; + } + + id.id[0] = (u64)('s'); + message = make_lit_string("(S)ave and kill"); + if (gui_do_fixed_option(target, id, message, 's')){ + action = 2; + } + + if (action != -1){ + complete = 1; + copy(&comp_dest, view->dest); + comp_action = action; + } + }break; + } + + if (complete){ + terminate_with_null(&comp_dest); + interactive_view_complete(system, view, comp_dest, comp_action); + } + }break; + } + } + } + gui_end_top_level(target); + + result.animating = target->animating; + return(result); +} + +internal f32 +view_get_scroll_y(View *view){ + f32 v; + if (view->showing_ui == VUI_None){ + v = view->recent->scroll.scroll_y; + } + else{ + v = view->gui_scroll.scroll_y; + } + return(v); +} + +internal void +click_button_input(GUI_Target *target, GUI_Session *session, Input_Summary *user_input, + GUI_Interactive *b, b32 *is_animating){ + i32 mx = user_input->mouse.x; + i32 my = user_input->mouse.y; + + if (hit_check(mx, my, session->rect)){ + target->hover = b->id; + if (user_input->mouse.press_l){ + target->mouse_hot = b->id; + *is_animating = 1; + } + if (user_input->mouse.release_l && gui_id_eq(target->mouse_hot, b->id)){ + target->active = b->id; + target->mouse_hot = gui_id_zero(); + *is_animating = 1; + } + } + else if (gui_id_eq(target->hover, b->id)){ + target->hover = gui_id_zero(); + } +} + +internal b32 +scroll_button_input(GUI_Target *target, GUI_Session *session, Input_Summary *user_input, + GUI_id id, b32 *is_animating){ + b32 result = 0; + i32 mx = user_input->mouse.x; + i32 my = user_input->mouse.y; + + if (hit_check(mx, my, session->rect)){ + target->hover = id; + if (user_input->mouse.l){ + target->mouse_hot = id; + gui_activate_scrolling(target); + *is_animating = 1; + result = 1; + } + } + else if (gui_id_eq(target->hover, id)){ + target->hover = gui_id_zero(); + } + return(result); +} + +struct Input_Process_Result{ + GUI_Scroll_Vars vars; + i32_Rect region; + b32 is_animating; +}; + +internal Input_Process_Result +do_input_file_view(System_Functions *system, + View *view, i32_Rect rect, b32 is_active, + Input_Summary *user_input, + GUI_Scroll_Vars vars, i32_Rect region){ + Input_Process_Result result = {0}; + b32 is_file_scroll = 0; + + GUI_Session gui_session = {0}; + GUI_Header *h = 0; + GUI_Target *target = &view->gui_target; + GUI_Interpret_Result interpret_result = {0}; + + result.vars = vars; + result.region = region; + + target->active = gui_id_zero(); + + if (target->push.pos > 0){ + gui_session_init(&gui_session, target, rect, view->font_height); + + for (h = (GUI_Header*)target->push.base; + h->type; + h = NextHeader(h)){ + interpret_result = gui_interpret(target, &gui_session, h, + result.vars, result.region); + + if (interpret_result.has_region){ + result.region = interpret_result.region; + } + + switch (h->type){ + case guicom_file_option: + case guicom_fixed_option: + case guicom_fixed_option_checkbox: + { + GUI_Interactive *b = (GUI_Interactive*)h; + + if (interpret_result.auto_activate){ + target->auto_hot = gui_id_zero(); + target->active = b->id; + result.is_animating = 1; + } + else if (interpret_result.auto_hot){ + if (!gui_id_eq(target->auto_hot, b->id)){ + target->auto_hot = b->id; + result.is_animating = 1; + } + } + }break; + } + + if (interpret_result.has_info){ + switch (h->type){ + case guicom_top_bar: break; + + case guicom_file: + { + f32 new_max_y = view_compute_max_target_y(view); + + view->file_region = gui_session.rect; + result.vars.max_y = new_max_y; + + if (view->reinit_scrolling){ + view_reinit_scrolling(view); + result.is_animating = 1; + } + if (file_step(view, gui_session.rect, user_input, is_active)){ + result.is_animating = 1; + } + is_file_scroll = 1; + }break; + + case guicom_color_button: + case guicom_font_button: + case guicom_button: + case guicom_file_option: + case guicom_style_preview: + { + GUI_Interactive *b = (GUI_Interactive*)h; + + click_button_input(target, &gui_session, user_input, b, &result.is_animating); + }break; + + case guicom_fixed_option: + case guicom_fixed_option_checkbox: + { + GUI_Interactive *b = (GUI_Interactive*)h; + + click_button_input(target, &gui_session, user_input, b, &result.is_animating); + + { + Key_Event_Data key; + Key_Summary *keys = &user_input->keys; + + void *ptr = (b + 1); + String string; + char activation_key; + + i32 i, count; + + string = gui_read_string(&ptr); + activation_key = *(char*)ptr; + + count = keys->count; + for (i = 0; i < count; ++i){ + key = get_single_key(keys, i); + if (char_to_upper(key.character) == char_to_upper(activation_key)){ + target->active = b->id; + result.is_animating = 1; + break; + } + } + } + }break; + + case guicom_scrollable_slider: + { + GUI_id id = gui_id_scrollbar_slider(); + i32 mx = user_input->mouse.x; + i32 my = user_input->mouse.y; + f32 v = 0; + + if (hit_check(mx, my, gui_session.rect)){ + target->hover = id; + if (user_input->mouse.press_l){ + target->mouse_hot = id; + result.is_animating = 1; + } + } + else if (gui_id_eq(target->hover, id)){ + target->hover = gui_id_zero(); + } + + if (gui_id_eq(target->mouse_hot, id)){ + v = unlerp(gui_session.scroll_top, (f32)my, + gui_session.scroll_bottom); + v = clamp(0.f, v, 1.f); + result.vars.target_y = lerp(0.f, v, result.vars.max_y); + + gui_activate_scrolling(target); + result.is_animating = 1; + } + } + // NOTE(allen): NO BREAK HERE!! + + case guicom_scrollable_invisible: + { + if (user_input->mouse.wheel != 0){ + result.vars.target_y += user_input->mouse.wheel*target->delta; + + result.vars.target_y = + clamp(0.f, result.vars.target_y, result.vars.max_y); + gui_activate_scrolling(target); + result.is_animating = 1; + } + }break; + + case guicom_scrollable_top: + { + GUI_id id = gui_id_scrollbar_top(); + + if (scroll_button_input(target, &gui_session, user_input, id, &result.is_animating)){ + result.vars.target_y -= target->delta * 0.25f; + result.vars.target_y = clamp_bottom(0.f, result.vars.target_y); + } + }break; + + case guicom_scrollable_bottom: + { + GUI_id id = gui_id_scrollbar_bottom(); + + if (scroll_button_input(target, &gui_session, user_input, id, &result.is_animating)){ + result.vars.target_y += target->delta * 0.25f; + result.vars.target_y = clamp_top(0.f, result.vars.max_y); + } + }break; + + case guicom_end_scrollable_section: + { + if (!is_file_scroll){ + f32 new_max_y = gui_session.suggested_max_y; + result.vars.max_y = new_max_y; + } + }break; + } + } + } + + if (!user_input->mouse.l){ + if (!gui_id_is_null(target->mouse_hot)){ + target->mouse_hot = gui_id_zero(); + result.is_animating = 1; + } + } + + { + GUI_Scroll_Vars scroll_vars = result.vars; + b32 is_new_target = 0; + if (scroll_vars.target_x != scroll_vars.prev_target_x) is_new_target = 1; + if (scroll_vars.target_y != scroll_vars.prev_target_y) is_new_target = 1; + + if (view->persistent.models->scroll_rule(scroll_vars.target_x, scroll_vars.target_y, + &scroll_vars.scroll_x, &scroll_vars.scroll_y, + (view->persistent.id) + 1, is_new_target)){ + result.is_animating = 1; + } + + scroll_vars.prev_target_x = scroll_vars.target_x; + scroll_vars.prev_target_y = scroll_vars.target_y; + + result.vars = scroll_vars; + } + } + + return(result); +} + +internal i32 +draw_file_loaded(View *view, i32_Rect rect, b32 is_active, Render_Target *target){ + Models *models = view->persistent.models; + Editing_File *file = view->file_data.file; + Style *style = main_style(models); + i32 line_height = view->font_height; + + i32 max_x = rect.x1 - rect.x0; + i32 max_y = rect.y1 - rect.y0 + line_height; + + Assert(file && !file->is_dummy && buffer_good(&file->state.buffer)); + + b32 tokens_use = 0; + Cpp_Token_Stack token_stack = {}; + if (file){ + tokens_use = file->state.tokens_complete && (file->state.token_stack.count > 0); + token_stack = file->state.token_stack; + } + + Partition *part = &models->mem.part; + + Temp_Memory temp = begin_temp_memory(part); + + partition_align(part, 4); + i32 max = partition_remaining(part) / sizeof(Buffer_Render_Item); + Buffer_Render_Item *items = push_array(part, Buffer_Render_Item, max); + + i16 font_id = models->global_font.font_id; + Render_Font *font = get_font_info(models->font_set, font_id)->font; + float *advance_data = 0; + if (font) advance_data = font->advance_data; + + i32 count; + Full_Cursor render_cursor; + Buffer_Render_Options opts = {}; + + f32 *wraps = view->file_data.line_wrap_y; + f32 scroll_x = view->recent->scroll.scroll_x; + f32 scroll_y = view->recent->scroll.scroll_y; + + { + render_cursor = buffer_get_start_cursor(&file->state.buffer, wraps, scroll_y, + !view->file_data.unwrapped_lines, (f32)max_x, advance_data, (f32)line_height); + + view->recent->scroll_i = render_cursor.pos; + + buffer_get_render_data(&file->state.buffer, items, max, &count, + (f32)rect.x0, (f32)rect.y0, + scroll_x, scroll_y, render_cursor, + !view->file_data.unwrapped_lines, + (f32)max_x, (f32)max_y, + advance_data, (f32)line_height, + opts); + } + + Assert(count > 0); + + i32 cursor_begin, cursor_end; + u32 cursor_color, at_cursor_color; + if (view->file_data.show_temp_highlight){ + cursor_begin = view->file_data.temp_highlight.pos; + cursor_end = view->file_data.temp_highlight_end_pos; + cursor_color = style->main.highlight_color; + at_cursor_color = style->main.at_highlight_color; + } + else{ + cursor_begin = view->recent->cursor.pos; + cursor_end = cursor_begin + 1; + cursor_color = style->main.cursor_color; + at_cursor_color = style->main.at_cursor_color; + } + + i32 token_i = 0; + u32 main_color = style->main.default_color; + u32 special_color = style->main.special_character_color; + if (tokens_use){ + Cpp_Get_Token_Result result = cpp_get_token(&token_stack, items->index); + main_color = *style_get_color(style, token_stack.tokens[result.token_index]); + token_i = result.token_index + 1; + } + + u32 mark_color = style->main.mark_color; + Buffer_Render_Item *item = items; + i32 prev_ind = -1; + u32 highlight_color = 0; + u32 highlight_this_color = 0; + + for (i32 i = 0; i < count; ++i, ++item){ + i32 ind = item->index; + highlight_this_color = 0; + if (tokens_use && ind != prev_ind){ + Cpp_Token current_token = token_stack.tokens[token_i-1]; + + if (token_i < token_stack.count){ + if (ind >= token_stack.tokens[token_i].start){ + main_color = + *style_get_color(style, token_stack.tokens[token_i]); + current_token = token_stack.tokens[token_i]; + ++token_i; + } + else if (ind >= current_token.start + current_token.size){ + main_color = 0xFFFFFFFF; + } + } + + if (current_token.type == CPP_TOKEN_JUNK && + i >= current_token.start && i < current_token.start + current_token.size){ + highlight_color = style->main.highlight_junk_color; + } + else{ + highlight_color = 0; + } + } + + u32 char_color = main_color; + if (item->flags & BRFlag_Special_Character) char_color = special_color; + + f32_Rect char_rect = f32R(item->x0, item->y0, item->x1, item->y1); + if (view->file_data.show_whitespace && highlight_color == 0 && + char_is_whitespace((char)item->glyphid)){ + highlight_this_color = style->main.highlight_white_color; + } + else{ + highlight_this_color = highlight_color; + } + + if (cursor_begin <= ind && ind < cursor_end && (ind != prev_ind || cursor_begin < ind)){ + if (is_active){ + draw_rectangle(target, char_rect, cursor_color); + char_color = at_cursor_color; + } + else{ + if (!view->file_data.show_temp_highlight){ + draw_rectangle_outline(target, char_rect, cursor_color); + } + } + } + else if (highlight_this_color){ + draw_rectangle(target, char_rect, highlight_this_color); + } + + u32 fade_color = 0xFFFF00FF; + f32 fade_amount = 0.f; + + if (file->state.paste_effect.tick_down > 0 && + file->state.paste_effect.start <= ind && + ind < file->state.paste_effect.end){ + fade_color = file->state.paste_effect.color; + fade_amount = (f32)(file->state.paste_effect.tick_down) / file->state.paste_effect.tick_max; + } + + char_color = color_blend(char_color, fade_amount, fade_color); + + if (ind == view->recent->mark && prev_ind != ind){ + draw_rectangle_outline(target, char_rect, mark_color); + } + if (item->glyphid != 0){ + font_draw_glyph(target, font_id, (u8)item->glyphid, + item->x0, item->y0, char_color); + } + prev_ind = ind; + } + + end_temp_memory(temp); + + return(0); +} + +internal void +draw_text_field(Render_Target *target, View *view, i32_Rect rect, String p, String t){ + Models *models = view->persistent.models; + Style *style = main_style(models); + + u32 back_color = style->main.margin_color; + u32 text1_color = style->main.default_color; + u32 text2_color = style->main.file_info_style.pop1_color; + + i32 x = rect.x0; + i32 y = rect.y0 + 2; + + i16 font_id = models->global_font.font_id; + + if (target){ + draw_rectangle(target, rect, back_color); + x = CEIL32(draw_string(target, font_id, p, x, y, text2_color)); + draw_string(target, font_id, t, x, y, text1_color); + } +} + +internal void +draw_text_with_cursor(Render_Target *target, View *view, i32_Rect rect, String s, i32 pos){ + Models *models = view->persistent.models; + Style *style = main_style(models); + + u32 back_color = style->main.margin_color; + u32 text_color = style->main.default_color; + u32 cursor_color = style->main.cursor_color; + u32 at_cursor_color = style->main.at_cursor_color; + + f32 x = (f32)rect.x0; + i32 y = rect.y0 + 2; + + i16 font_id = models->global_font.font_id; + + if (target){ + draw_rectangle(target, rect, back_color); + + if (pos >= 0 && pos < s.size){ + String part1, part2, part3; + i32_Rect cursor_rect; + Render_Font *font = get_font_info(models->font_set, font_id)->font; + + part1 = substr(s, 0, pos); + part2 = substr(s, pos, 1); + part3 = substr(s, pos+1, s.size-pos-1); + + + x = draw_string(target, font_id, part1, FLOOR32(x), y, text_color); + + cursor_rect.x0 = FLOOR32(x); + cursor_rect.x1 = FLOOR32(x) + CEIL32(font->advance_data[s.str[pos]]); + cursor_rect.y0 = y; + cursor_rect.y1 = y + view->font_height; + draw_rectangle(target, cursor_rect, cursor_color); + x = draw_string(target, font_id, part2, FLOOR32(x), y, at_cursor_color); + + draw_string(target, font_id, part3, FLOOR32(x), y, text_color); + } + else{ + draw_string(target, font_id, s, FLOOR32(x), y, text_color); + } + } +} + +internal void +draw_file_bar(Render_Target *target, View *view, Editing_File *file, i32_Rect rect){ + File_Bar bar; + Models *models = view->persistent.models; + Style_Font *font = &models->global_font; + Style *style = main_style(models); + Interactive_Style bar_style = style->main.file_info_style; + + u32 back_color = bar_style.bar_color; + u32 base_color = bar_style.base_color; + u32 pop1_color = bar_style.pop1_color; + u32 pop2_color = bar_style.pop2_color; + + bar.rect = rect; + + if (target){ + bar.font_id = font->font_id; + bar.pos_x = (f32)bar.rect.x0; + bar.pos_y = (f32)bar.rect.y0; + bar.text_shift_y = 2; + bar.text_shift_x = 0; + + draw_rectangle(target, bar.rect, back_color); + if (!file){ + intbar_draw_string(target, &bar, make_lit_string("*NULL*"), base_color); + } + else{ + intbar_draw_string(target, &bar, file->name.live_name, base_color); + intbar_draw_string(target, &bar, make_lit_string(" -"), base_color); + + if (file->is_loading){ + intbar_draw_string(target, &bar, make_lit_string(" loading"), base_color); + } + else{ + char line_number_space[30]; + String line_number = make_fixed_width_string(line_number_space); + append(&line_number, " L#"); + append_int_to_str(view->recent->cursor.line, &line_number); + append(&line_number, " C#"); + append_int_to_str(view->recent->cursor.character, &line_number); + + intbar_draw_string(target, &bar, line_number, base_color); + + intbar_draw_string(target, &bar, make_lit_string(" -"), base_color); + + if (file->settings.dos_write_mode){ + intbar_draw_string(target, &bar, make_lit_string(" dos"), base_color); + } + else{ + intbar_draw_string(target, &bar, make_lit_string(" nix"), base_color); + } + + if (file->state.still_lexing){ + intbar_draw_string(target, &bar, make_lit_string(" parsing"), pop1_color); + } + + if (!file->settings.unimportant){ + switch (buffer_get_sync(file)){ + case SYNC_BEHIND_OS: + { + persist String out_of_sync = make_lit_string(" !"); + intbar_draw_string(target, &bar, out_of_sync, pop2_color); + }break; + + case SYNC_UNSAVED: + { + persist String out_of_sync = make_lit_string(" *"); + intbar_draw_string(target, &bar, out_of_sync, pop2_color); + }break; + } + } + } + } + } +} + +u32 +get_margin_color(i32 active_level, Style *style){ + u32 margin = 0xFFFFFFFF; + + switch (active_level){ + default: + margin = style->main.margin_color; + break; + + case 1: case 2: + margin = style->main.margin_hover_color; + break; + + case 3: case 4: + margin = style->main.margin_active_color; + break; + } + + return(margin); +} + +internal void +draw_color_button(GUI_Target *gui_target, Render_Target *target, View *view, + i32_Rect rect, GUI_id id, u32 fore, u32 back, String text){ + Models *models = view->persistent.models; + + i32 active_level = gui_active_level(gui_target, id); + i16 font_id = models->global_font.font_id; + + if (active_level > 0){ + Swap(u32, back, fore); + } + + draw_rectangle(target, rect, back); + draw_string(target, font_id, text, rect.x0, rect.y0 + 1, fore); +} + +internal void +draw_font_button(GUI_Target *gui_target, Render_Target *target, View *view, + i32_Rect rect, GUI_id id, i16 font_id, String text){ + Models *models = view->persistent.models; + Style *style = main_style(models); + + i32 active_level = gui_active_level(gui_target, id); + + u32 margin = get_margin_color(active_level, style); + u32 back = style->main.back_color; + u32 text_color = style->main.default_color; + + draw_rectangle(target, rect, back); + draw_rectangle_outline(target, rect, margin); + draw_string(target, font_id, text, rect.x0, rect.y0 + 1, text_color); +} + +internal void +draw_fat_option_block(GUI_Target *gui_target, Render_Target *target, View *view, i32_Rect rect, GUI_id id, + String text, String pop, i8 checkbox = -1){ + Models *models = view->persistent.models; + Style *style = main_style(models); + + i32 active_level = gui_active_level(gui_target, id); + i16 font_id = models->global_font.font_id; + + i32_Rect inner = get_inner_rect(rect, 3); + + u32 margin = get_margin_color(active_level, style); + u32 back = style->main.back_color; + u32 text_color = style->main.default_color; + u32 pop_color = style->main.special_character_color; + + i32 h = view->font_height; + i32 x = inner.x0 + 3; + i32 y = inner.y0 + h/2 - 1; + + draw_rectangle(target, inner, back); + draw_margin(target, rect, inner, margin); + + if (checkbox != -1){ + u32 checkbox_color = style->main.margin_active_color; + i32_Rect checkbox_rect = get_inner_rect(inner, (inner.y1 - inner.y0 - h)/2); + checkbox_rect.x1 = checkbox_rect.x0 + (checkbox_rect.y1 - checkbox_rect.y0); + + if (checkbox == 0){ + draw_rectangle_outline(target, checkbox_rect, checkbox_color); + } + else{ + draw_rectangle(target, checkbox_rect, checkbox_color); + } + + x = checkbox_rect.x1 + 3; + } + + x = CEIL32(draw_string(target, font_id, text, x, y, text_color)); + draw_string(target, font_id, pop, x, y, pop_color); +} + +internal void +draw_button(GUI_Target *gui_target, Render_Target *target, View *view, i32_Rect rect, GUI_id id, String text){ + Models *models = view->persistent.models; + Style *style = main_style(models); + + i32 active_level = gui_active_level(gui_target, id); + i16 font_id = models->global_font.font_id; + + i32_Rect inner = get_inner_rect(rect, 3); + + u32 margin = style->main.default_color; + u32 back = get_margin_color(active_level, style); + u32 text_color = style->main.default_color; + + i32 h = view->font_height; + i32 y = inner.y0 + h/2 - 1; + + i32 w = (i32)font_string_width(target, font_id, text); + i32 x = (inner.x1 + inner.x0 - w)/2; + + draw_rectangle(target, inner, back); + draw_rectangle_outline(target, inner, margin); + + draw_string(target, font_id, text, x, y, text_color); +} + +internal void +draw_style_preview(GUI_Target *gui_target, Render_Target *target, View *view, i32_Rect rect, GUI_id id, Style *style){ + Models *models = view->persistent.models; + + i32 active_level = gui_active_level(gui_target, id); + i16 font_id = models->global_font.font_id; + Font_Info *info = get_font_info(models->font_set, font_id); + + i32_Rect inner = get_inner_rect(rect, 3); + + u32 margin_color = get_margin_color(active_level, style); + u32 back = style->main.back_color; + u32 text_color = style->main.default_color; + u32 keyword_color = style->main.keyword_color; + u32 int_constant_color = style->main.int_constant_color; + u32 comment_color = style->main.comment_color; + + draw_margin(target, rect, inner, margin_color); + draw_rectangle(target, inner, back); + + i32 y = inner.y0; + i32 x = inner.x0; + x = CEIL32(draw_string(target, font_id, style->name.str, x, y, text_color)); + i32 font_x = (i32)(inner.x1 - font_string_width(target, font_id, info->name.str)); + if (font_x > x + 10){ + draw_string(target, font_id, info->name.str, font_x, y, text_color); + } + + x = inner.x0; + y += info->height; + x = CEIL32(draw_string(target, font_id, "if", x, y, keyword_color)); + x = CEIL32(draw_string(target, font_id, "(x < ", x, y, text_color)); + x = CEIL32(draw_string(target, font_id, "0", x, y, int_constant_color)); + x = CEIL32(draw_string(target, font_id, ") { x = ", x, y, text_color)); + x = CEIL32(draw_string(target, font_id, "0", x, y, int_constant_color)); + x = CEIL32(draw_string(target, font_id, "; } ", x, y, text_color)); + x = CEIL32(draw_string(target, font_id, "// comment", x, y, comment_color)); + + x = inner.x0; + y += info->height; + draw_string(target, font_id, "[] () {}; * -> +-/ <>= ! && || % ^", x, y, text_color); +} + +internal i32 +do_render_file_view(System_Functions *system, View *view, + View *active, i32_Rect rect, b32 is_active, + Render_Target *target, Input_Summary *user_input){ + + Editing_File *file = view->file_data.file; + i32 result = 0; + + GUI_Session gui_session = {0}; + GUI_Header *h; + GUI_Target *gui_target = &view->gui_target; + GUI_Interpret_Result interpret_result = {0}; + + f32 v; + + if (gui_target->push.pos > 0){ + gui_session_init(&gui_session, gui_target, rect, view->font_height); + + v = view_get_scroll_y(view); + + i32_Rect clip_rect = rect; + draw_push_clip(target, clip_rect); + + for (h = (GUI_Header*)gui_target->push.base; + h->type; + h = NextHeader(h)){ + interpret_result = gui_interpret(gui_target, &gui_session, h, + *view->current_scroll, + view->scroll_region); + + if (interpret_result.has_info){ + if (gui_session.clip_y > clip_rect.y0){ + clip_rect.y0 = gui_session.clip_y; + draw_change_clip(target, clip_rect); + } + + switch (h->type){ + case guicom_top_bar: + { + draw_file_bar(target, view, file, gui_session.rect); + }break; + + case guicom_file: + { + if (view->reinit_scrolling){ + view_reinit_scrolling(view); + } + if (file && file_is_ready(file)){ + result = draw_file_loaded(view, gui_session.rect, is_active, target); + } + }break; + + case guicom_text_field: + { + void *ptr = (h+1); + String p = gui_read_string(&ptr); + String t = gui_read_string(&ptr); + draw_text_field(target, view, gui_session.rect, p, t); + }break; + + case guicom_text_with_cursor: + { + void *ptr = (h+1); + String s = gui_read_string(&ptr); + i32 pos = gui_read_integer(&ptr); + + draw_text_with_cursor(target, view, gui_session.rect, s, pos); + }break; + + case guicom_color_button: + { + GUI_Interactive *b = (GUI_Interactive*)h; + void *ptr = (b + 1); + u32 fore = (u32)gui_read_integer(&ptr); + u32 back = (u32)gui_read_integer(&ptr); + String t = gui_read_string(&ptr); + + draw_color_button(gui_target, target, view, gui_session.rect, b->id, fore, back, t); + }break; + + case guicom_font_button: + { + GUI_Interactive *b = (GUI_Interactive*)h; + void *ptr = (b + 1); + i16 font_id = (i16)gui_read_integer(&ptr); + String t = gui_read_string(&ptr); + + draw_font_button(gui_target, target, view, gui_session.rect, b->id, font_id, t); + }break; + + case guicom_file_option: + { + GUI_Interactive *b = (GUI_Interactive*)h; + void *ptr = (b + 1); + b32 folder = gui_read_integer(&ptr); + String f = gui_read_string(&ptr); + String m = gui_read_string(&ptr); + + if (folder){ + append(&f, system->slash); + } + + draw_fat_option_block(gui_target, target, view, gui_session.rect, b->id, f, m); + }break; + + case guicom_style_preview: + { + GUI_Interactive *b = (GUI_Interactive*)h; + i32 style_index = *(i32*)(b + 1); + Style *style = get_style(view->persistent.models, style_index); + + draw_style_preview(gui_target, target, view, gui_session.rect, b->id, style); + }break; + + case guicom_fixed_option: + case guicom_fixed_option_checkbox: + { + GUI_Interactive *b = (GUI_Interactive*)h; + void *ptr = (b + 1); + String f = gui_read_string(&ptr); + String m = {0}; + i8 status = -1; + if (h->type == guicom_fixed_option_checkbox){ + gui_read_byte(&ptr); + status = (i8)gui_read_byte(&ptr); + } + + draw_fat_option_block(gui_target, target, view, gui_session.rect, b->id, f, m, status); + }break; + + case guicom_button: + { + GUI_Interactive *b = (GUI_Interactive*)h; + void *ptr = (b + 1); + String t = gui_read_string(&ptr); + + draw_button(gui_target, target, view, gui_session.rect, b->id, t); + }break; + + case guicom_scrollable_bar: + { + Models *models = view->persistent.models; + Style *style = main_style(models); + + u32 back; + u32 outline; + + i32_Rect bar = gui_session.rect; + + back = style->main.back_color; + if (is_active){ + outline = style->main.margin_active_color; + } + else{ + outline = style->main.margin_color; + } + + draw_rectangle(target, bar, back); + draw_rectangle_outline(target, bar, outline); + }break; + + case guicom_scrollable_top: + case guicom_scrollable_slider: + case guicom_scrollable_bottom: + { + GUI_id id; + Models *models = view->persistent.models; + Style *style = main_style(models); + i32_Rect box = gui_session.rect; + + i32 active_level; + + u32 back; + u32 outline; + + switch (h->type){ + case guicom_scrollable_top: id = gui_id_scrollbar_top(); break; + case guicom_scrollable_bottom: id = gui_id_scrollbar_bottom(); break; + default: id = gui_id_scrollbar_slider(); break; + } + + active_level = gui_active_level(gui_target, id); + + switch (active_level){ + case 0: back = style->main.back_color; break; + case 1: back = style->main.margin_hover_color; break; + default: back = style->main.margin_active_color; break; + } + + if (is_active){ + outline = style->main.margin_active_color; + } + else{ + outline = style->main.margin_color; + } + + draw_rectangle(target, box, back); + draw_margin(target, box, get_inner_rect(box, 2), outline); + }break; + + case guicom_begin_scrollable_section: + clip_rect.x1 = Min(gui_session.scroll_region.x1, clip_rect.x1); + draw_push_clip(target, clip_rect); + break; + + case guicom_end_scrollable_section: + clip_rect = draw_pop_clip(target); + break; + } + } + } + + draw_pop_clip(target); + } + + return(result); +} + +inline void +file_view_free_buffers(View *view){ + General_Memory *general = &view->persistent.models->mem.general; + if (view->file_data.line_wrap_y){ + general_memory_free(general, view->file_data.line_wrap_y); + view->file_data.line_wrap_y = 0; + } + general_memory_free(general, view->gui_mem); + view->gui_mem = 0; +} + +struct Search_Range{ + Buffer_Type *buffer; + i32 start, size; +}; + +struct Search_Set{ + Search_Range *ranges; + i32 count, max; +}; + +struct Search_Iter{ + String word; + i32 pos; + i32 i; +}; + +struct Search_Match{ + Buffer_Type *buffer; + i32 start, end; + b32 found_match; +}; + +internal void +search_iter_init(General_Memory *general, Search_Iter *iter, i32 size){ + i32 str_max; + + if (iter->word.str == 0){ + str_max = size*2; + iter->word.str = (char*)general_memory_allocate(general, str_max, 0); + iter->word.memory_size = str_max; + } + else if (iter->word.memory_size < size){ + str_max = size*2; + iter->word.str = (char*)general_memory_reallocate_nocopy(general, iter->word.str, str_max, 0); + iter->word.memory_size = str_max; + } + + iter->i = 0; + iter->pos = 0; +} + +internal void +search_set_init(General_Memory *general, Search_Set *set, i32 set_count){ + i32 max; + + if (set->ranges == 0){ + max = set_count*2; + set->ranges = (Search_Range*)general_memory_allocate(general, sizeof(Search_Range)*max, 0); + set->max = max; + } + else if (set->max < set_count){ + max = set_count*2; + set->ranges = (Search_Range*)general_memory_reallocate_nocopy( + general, set->ranges, sizeof(Search_Range)*max, 0); + set->max = max; + } + + set->count = set_count; +} + +internal void +search_hits_table_alloc(General_Memory *general, Table *hits, i32 table_size){ + void *mem; + i32 mem_size; + + mem_size = table_required_mem_size(table_size, sizeof(Offset_String)); + if (hits->hash_array == 0){ + mem = general_memory_allocate(general, mem_size, 0); + } + else{ + mem = general_memory_reallocate_nocopy(general, hits->hash_array, mem_size, 0); + } + table_init_memory(hits, mem, table_size, sizeof(Offset_String)); +} + +internal void +search_hits_init(General_Memory *general, Table *hits, String_Space *str, i32 table_size, i32 str_size){ + void *mem; + i32 mem_size; + + if (hits->hash_array == 0){ + search_hits_table_alloc(general, hits, table_size); + } + else if (hits->max < table_size){ + mem_size = table_required_mem_size(table_size, sizeof(Offset_String)); + mem = general_memory_reallocate_nocopy(general, hits->hash_array, mem_size, 0); + table_init_memory(hits, mem, table_size, sizeof(Offset_String)); + } + + if (str->space == 0){ + str->space = (char*)general_memory_allocate(general, str_size, 0); + str->max = str_size; + } + else if (str->max < str_size){ + str->space = (char*)general_memory_reallocate_nocopy(general, str->space, str_size, 0); + str->max = str_size; + } + + str->pos = str->new_pos = 0; + table_clear(hits); +} + +internal b32 +search_hit_add(General_Memory *general, Table *hits, String_Space *space, char *str, i32 len){ + b32 result; + i32 new_size; + Offset_String ostring; + Table new_hits; + + Assert(len != 0); + + ostring = strspace_append(space, str, len); + if (ostring.size == 0){ + new_size = Max(space->max*2, space->max + len); + space->space = (char*)general_memory_reallocate(general, space->space, space->new_pos, new_size, 0); + ostring = strspace_append(space, str, len); + } + + Assert(ostring.size != 0); + + if (table_at_capacity(hits)){ + search_hits_table_alloc(general, &new_hits, hits->max*2); + table_clear(&new_hits); + table_rehash(hits, &new_hits, space->space, tbl_offset_string_hash, tbl_offset_string_compare); + general_memory_free(general, hits->hash_array); + *hits = new_hits; + } + + if (!table_add(hits, &ostring, space->space, tbl_offset_string_hash, tbl_offset_string_compare)){ + result = 1; + strspace_keep_prev(space); + } + else{ + result = 0; + strspace_discard_prev(space); + } + + return(result); +} + +internal Search_Match +search_next_match(Partition *part, Search_Set *set, Search_Iter *iter_){ + Search_Match result = {}; + Search_Iter iter = *iter_; + Search_Range *range; + Temp_Memory temp; + char *spare; + i32 start_pos, end_pos, count; + + temp = begin_temp_memory(part); + spare = push_array(part, char, iter.word.size); + + count = set->count; + for (; iter.i < count;){ + range = set->ranges + iter.i; + + end_pos = range->start + range->size; + + if (iter.pos + iter.word.size < end_pos){ + start_pos = Max(iter.pos, range->start); + result.start = buffer_find_string(range->buffer, start_pos, end_pos, iter.word.str, iter.word.size, spare); + + if (result.start < end_pos){ + iter.pos = result.start + 1; + if (result.start == 0 || !char_is_alpha_numeric(buffer_get_char(range->buffer, result.start - 1))){ + result.end = buffer_seek_word_right_assume_on_word(range->buffer, result.start); + if (result.end < end_pos){ + result.found_match = 1; + result.buffer = range->buffer; + iter.pos = result.end; + break; + } + } + } + else{ + ++iter.i, iter.pos = 0; + } + } + else{ + ++iter.i, iter.pos = 0; + } + } + end_temp_memory(temp); + + *iter_ = iter; + + return(result); +} + +inline void +view_change_size(General_Memory *general, View *view){ + if (view->file_data.file){ + view_measure_wraps(general, view); + view->recent->cursor = view_compute_cursor_from_pos(view, view->recent->cursor.pos); + } +} + +struct Live_Views{ + View *views; + View free_sentinel; + i32 count, max; +}; + +internal View_And_ID +live_set_alloc_view(Live_Views *live_set, Panel *panel, Models *models){ + View_And_ID result = {}; + + Assert(live_set->count < live_set->max); + ++live_set->count; + + result.view = live_set->free_sentinel.next; + result.id = (i32)(result.view - live_set->views); + Assert(result.id == result.view->persistent.id); + + dll_remove(result.view); + memset(get_view_body(result.view), 0, get_view_size()); + + result.view->in_use = 1; + panel->view = result.view; + result.view->panel = panel; + + result.view->persistent.models = models; + result.view->scrub_max = 1; + result.view->current_scroll = &result.view->recent->scroll; + + init_query_set(&result.view->query_set); + + { + i32 gui_mem_size = Kbytes(32); + void *gui_mem = general_memory_allocate(&models->mem.general, gui_mem_size + 8, 0); + result.view->gui_mem = gui_mem; + gui_mem = advance_to_alignment(gui_mem); + result.view->gui_target.push = make_part(gui_mem, gui_mem_size); + } + + return(result); +} + +inline void +live_set_free_view(System_Functions *system, Live_Views *live_set, View *view){ + Assert(live_set->count > 0); + --live_set->count; + file_view_free_buffers(view); + dll_insert(&live_set->free_sentinel, view); + view->in_use = 0; +} + +// BOTTOM + diff --git a/4ed_system.h b/4ed_system.h index 6597a83e..26867dcf 100644 --- a/4ed_system.h +++ b/4ed_system.h @@ -197,6 +197,9 @@ typedef Sys_Post_Job_Sig(System_Post_Job); #define Sys_Cancel_Job_Sig(name) void name(Thread_Group_ID group_id, u32 job_id) typedef Sys_Cancel_Job_Sig(System_Cancel_Job); +#define Sys_Check_Cancel_Sig(name) b32 name(Thread_Context *thread) +typedef Sys_Check_Cancel_Sig(System_Check_Cancel); + #define Sys_Grow_Thread_Memory_Sig(name) void name(Thread_Memory *memory) typedef Sys_Grow_Thread_Memory_Sig(System_Grow_Thread_Memory); @@ -248,9 +251,10 @@ struct System_Functions{ System_CLI_Update_Step *cli_update_step; System_CLI_End_Update *cli_end_update; - // threads: 5 + // threads: 7 System_Post_Job *post_job; System_Cancel_Job *cancel_job; + System_Check_Cancel *check_cancel; System_Grow_Thread_Memory *grow_thread_memory; System_Acquire_Lock *acquire_lock; System_Release_Lock *release_lock; diff --git a/win32_4ed.cpp b/win32_4ed.cpp index 56ea7f54..67612028 100644 --- a/win32_4ed.cpp +++ b/win32_4ed.cpp @@ -40,9 +40,11 @@ struct Thread_Context{ u32 job_id; b32 running; + b32 cancel; Work_Queue *queue; u32 id; + u32 group_id; u32 windows_id; HANDLE handle; }; @@ -50,6 +52,9 @@ struct Thread_Context{ struct Thread_Group{ Thread_Context *threads; i32 count; + + i32 cancel_lock0; + i32 cancel_cv0; }; #define UseWinDll 1 @@ -111,6 +116,18 @@ struct Sys_Bubble : public Bubble{ }; #endif +enum CV_ID{ + CANCEL_CV0, + CANCEL_CV1, + CANCEL_CV2, + CANCEL_CV3, + CANCEL_CV4, + CANCEL_CV5, + CANCEL_CV6, + CANCEL_CV7, + CV_COUNT +}; + struct Win32_Vars{ System_Functions system; App_Functions app; @@ -128,6 +145,7 @@ struct Win32_Vars{ Work_Queue queues[THREAD_GROUP_COUNT]; Thread_Group groups[THREAD_GROUP_COUNT]; CRITICAL_SECTION locks[LOCK_COUNT]; + CONDITION_VARIABLE condition_vars[CV_COUNT]; Thread_Memory *thread_memory; Win32_Coroutine coroutine_data[18]; Win32_Coroutine *coroutine_free; @@ -277,10 +295,29 @@ Sys_Release_Lock_Sig(system_release_lock){ LeaveCriticalSection(&win32vars.locks[id]); } +internal void +system_wait_cv(i32 crit_id, i32 cv_id){ + SleepConditionVariableCS(win32vars.condition_vars + cv_id, + win32vars.locks + crit_id, + INFINITE); +} + +internal void +system_signal_cv(i32 crit_id, i32 cv_id){ + AllowLocal(crit_id); + WakeConditionVariable(win32vars.condition_vars + cv_id); +} + internal DWORD JobThreadProc(LPVOID lpParameter){ Thread_Context *thread = (Thread_Context*)lpParameter; - Work_Queue *queue = thread->queue; + Work_Queue *queue = win32vars.queues + thread->group_id; + Thread_Group *group = win32vars.groups + thread->group_id; + + i32 thread_index = thread->id - 1; + + i32 cancel_lock = group->cancel_lock0 + thread_index; + i32 cancel_cv = group->cancel_cv0 + thread_index; for (;;){ u32 read_index = queue->read_position; @@ -324,6 +361,13 @@ JobThreadProc(LPVOID lpParameter){ PostMessage(win32vars.window_handle, WM_4coder_ANIMATE, 0, 0); full_job->running_thread = 0; thread->running = 0; + + system_acquire_lock(cancel_lock); + if (thread->cancel){ + thread->cancel = 0; + system_signal_cv(cancel_lock, cancel_cv); + } + system_release_lock(cancel_lock); } } } @@ -362,8 +406,18 @@ Sys_Post_Job_Sig(system_post_job){ return result; } -// TODO(allen): I would like to get rid of job canceling -// but I still don't know what exactly I would do without it. +// NOTE(allen): New job cancelling system: +// +// Jobs are expected to periodically check their cancelation +// state, especially if they are taking a while. +// +// When the main thread asks to cancel a job it sets the cancel +// state and does not resume until the thread running the job +// signals that it is okay. +// +// Don't hold the frame lock while sleeping, as this can dead-lock +// the job thread and the main thread, and since main is sleeping +// they won't collide anyway. internal Sys_Cancel_Job_Sig(system_cancel_job){ Work_Queue *queue = win32vars.queues + group_id; @@ -372,7 +426,6 @@ Sys_Cancel_Job_Sig(system_cancel_job){ u32 job_index; u32 thread_id; Full_Job_Data *full_job; - Thread_Context *thread; job_index = job_id % QUEUE_WRAP; full_job = queue->jobs + job_index; @@ -382,19 +435,47 @@ Sys_Cancel_Job_Sig(system_cancel_job){ InterlockedCompareExchange(&full_job->running_thread, 0, THREAD_NOT_ASSIGNED); - if (thread_id != THREAD_NOT_ASSIGNED){ - system_acquire_lock(CANCEL_LOCK0 + thread_id - 1); - thread = group->threads + thread_id - 1; - TerminateThread(thread->handle, 0); - u32 creation_flag = 0; - thread->handle = CreateThread(0, 0, JobThreadProc, thread, creation_flag, (LPDWORD)&thread->windows_id); - system_release_lock(CANCEL_LOCK0 + thread_id - 1); - thread->running = 0; + if (thread_id != THREAD_NOT_ASSIGNED && thread_id != 0){ + i32 thread_index = thread_id - 1; + + i32 cancel_lock = group->cancel_lock0 + thread_index; + i32 cancel_cv = group->cancel_cv0 + thread_index; + Thread_Context *thread = group->threads + thread_index; + + + system_acquire_lock(cancel_lock); + + thread->cancel = 1; + + system_release_lock(FRAME_LOCK); + do{ + system_wait_cv(cancel_lock, cancel_cv); + }while (thread->cancel == 1); + system_acquire_lock(FRAME_LOCK); + + system_release_lock(cancel_lock); } } -internal void -system_grow_thread_memory(Thread_Memory *memory){ +internal +Sys_Check_Cancel_Sig(system_check_cancel){ + b32 result = 0; + + Thread_Group *group = win32vars.groups + thread->group_id; + i32 thread_index = thread->id - 1; + i32 cancel_lock = group->cancel_lock0 + thread_index; + + system_acquire_lock(cancel_lock); + if (thread->cancel){ + result = 1; + } + system_release_lock(cancel_lock); + + return(result); +} + +internal +Sys_Grow_Thread_Memory_Sig(system_grow_thread_memory){ void *old_data; i32 old_size, new_size; @@ -1178,6 +1259,7 @@ Win32LoadSystemCode(){ win32vars.system.post_job = system_post_job; win32vars.system.cancel_job = system_cancel_job; + win32vars.system.check_cancel = system_check_cancel; win32vars.system.grow_thread_memory = system_grow_thread_memory; win32vars.system.acquire_lock = system_acquire_lock; win32vars.system.release_lock = system_release_lock; @@ -1621,18 +1703,22 @@ WinMain(HINSTANCE hInstance, memset(background, 0, sizeof(background)); win32vars.groups[BACKGROUND_THREADS].threads = background; win32vars.groups[BACKGROUND_THREADS].count = ArrayCount(background); + win32vars.groups[BACKGROUND_THREADS].cancel_lock0 = CANCEL_LOCK0; + win32vars.groups[BACKGROUND_THREADS].cancel_cv0 = CANCEL_CV0; Thread_Memory thread_memory[ArrayCount(background)]; win32vars.thread_memory = thread_memory; win32vars.queues[BACKGROUND_THREADS].semaphore = Win32Handle(CreateSemaphore(0, 0, - win32vars.groups[BACKGROUND_THREADS].count, 0)); + win32vars.groups[BACKGROUND_THREADS].count, + 0)); u32 creation_flag = 0; for (i32 i = 0; i < win32vars.groups[BACKGROUND_THREADS].count; ++i){ Thread_Context *thread = win32vars.groups[BACKGROUND_THREADS].threads + i; thread->id = i + 1; + thread->group_id = BACKGROUND_THREADS; Thread_Memory *memory = win32vars.thread_memory + i; *memory = thread_memory_zero();