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4coder/4ed_view.cpp

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/*
* Mr. 4th Dimention - Allen Webster
*
* 19.08.2015
*
* Viewing
*
*/
// TOP
internal i32
view_get_map(View *view){
if (view->ui_mode){
return(view->ui_map_id);
}
else{
return(view->file->settings.base_map_id);
}
}
internal u32
view_get_access_flags(View *view){
u32 result = AccessOpen;
if (view->ui_mode){
result |= AccessHidden;
}
result |= file_get_access_flags(view->file);
return(result);
}
internal i32
view_get_index(Live_Views *live_set, View *view){
return((i32)(view - live_set->views));
}
internal i32
view_get_id(Live_Views *live_set, View *view){
return((i32)(view - live_set->views) + 1);
}
internal View*
live_set_alloc_view(Heap *heap, Lifetime_Allocator *lifetime_allocator, Live_Views *live_set, Panel *panel){
Assert(live_set->count < live_set->max);
++live_set->count;
View *result = live_set->free_sentinel.next;
dll_remove(result);
block_zero_struct(result);
result->in_use = true;
init_query_set(&result->query_set);
result->lifetime_object = lifetime_alloc_object(heap, lifetime_allocator, DynamicWorkspace_View, result);
panel->view = result;
result->panel = panel;
return(result);
}
internal void
live_set_free_view(Heap *heap, Lifetime_Allocator *lifetime_allocator, Live_Views *live_set, View *view){
Assert(live_set->count > 0);
--live_set->count;
view->next = live_set->free_sentinel.next;
view->prev = &live_set->free_sentinel;
live_set->free_sentinel.next = view;
view->next->prev = view;
view->in_use = false;
lifetime_free_object(heap, lifetime_allocator, view->lifetime_object);
}
////////////////////////////////
internal File_Edit_Positions
view_get_edit_pos(View *view){
return(view->edit_pos_);
}
internal void
view_set_edit_pos(View *view, File_Edit_Positions edit_pos){
view->edit_pos_ = edit_pos;
view->file->state.edit_pos_most_recent = edit_pos;
}
////////////////////////////////
internal Rect_i32
view_get_file_region(Models *models, View *view){
Rect_i32 region = {};
if (models->get_view_buffer_region != 0){
Rect_i32 rect = view->panel->rect_inner;
Rect_i32 sub_region = i32R(0, 0, rect_width(rect), rect_height(rect));
sub_region = models->get_view_buffer_region(&models->app_links, view_get_id(&models->live_set, view), sub_region);
region.p0 = rect.p0 + sub_region.p0;
region.p1 = rect.p0 + sub_region.p1;
region.x1 = clamp_top(region.x1, rect.x1);
region.y1 = clamp_top(region.y1, rect.y1);
region.x0 = clamp_top(region.x0, region.x1);
region.y0 = clamp_top(region.y0, region.y1);
}
else{
region = view->panel->rect_inner;
}
return(region);
}
internal i32
view_width(Models *models, View *view){
return(rect_width(view_get_file_region(models, view)));
}
internal i32
view_height(Models *models, View *view){
return(rect_height(view_get_file_region(models, view)));
}
internal Vec2_i32
view_get_cursor_xy(System_Functions *system, View *view){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
Full_Cursor cursor = file_compute_cursor(system, view->file, seek_pos(edit_pos.cursor_pos));
Vec2_i32 result = {};
if (view->file->settings.unwrapped_lines){
result = V2i32((i32)cursor.unwrapped_x, (i32)cursor.unwrapped_y);
}
else{
result = V2i32((i32)cursor.wrapped_x, (i32)cursor.wrapped_y);
}
return(result);
}
internal Cursor_Limits
view_cursor_limits(Models *models, View *view){
i32 line_height = view->line_height;
i32 visible_height = view_height(models, view);
Cursor_Limits limits = {};
limits.max = visible_height - line_height*3;
limits.min = line_height*2;
if (limits.max - limits.min <= line_height){
if (visible_height >= line_height){
limits.max = visible_height - line_height;
}
else{
limits.max = visible_height;
}
limits.min = 0;
}
limits.max = clamp_bottom(0, limits.max);
limits.min = clamp(0, limits.min, limits.max);
limits.delta = clamp_top(line_height*5, (limits.max - limits.min + 1)/2);
return(limits);
}
internal i32
view_compute_max_target_y_from_bottom_y(Models *models, View *view, f32 max_item_y){
i32 line_height = view->line_height;
f32 height = clamp_bottom((f32)line_height, view_height(models, view));
f32 max_target_y = clamp_bottom(0.f, max_item_y - height*0.5f);
return(ceil32(max_target_y));
}
internal i32
view_compute_max_target_y(Models *models, View *view){
i32 line_height = view->line_height;
Editing_File *file = view->file;
Gap_Buffer *buffer = &file->state.buffer;
i32 lowest_line = buffer->line_count;
if (!file->settings.unwrapped_lines){
lowest_line = file->state.wrap_line_index[buffer->line_count];
}
return(view_compute_max_target_y_from_bottom_y(models,view, (lowest_line + 0.5f)*(f32)line_height));
}
////////////////////////////////
internal b32
view_move_view_to_cursor(System_Functions *system, Models *models, View *view, GUI_Scroll_Vars *scroll){
b32 result = false;
i32 max_x = view_width(models, view);
i32 max_y = view_compute_max_target_y(models, view);
Vec2_i32 cursor = view_get_cursor_xy(system, view);
GUI_Scroll_Vars scroll_vars = *scroll;
i32 target_x = scroll_vars.target_x;
i32 target_y = scroll_vars.target_y;
Cursor_Limits limits = view_cursor_limits(models, view);
if (cursor.y > target_y + limits.max){
target_y = cursor.y - limits.max + limits.delta;
}
if (cursor.y < target_y + limits.min){
target_y = cursor.y - limits.delta - limits.min;
}
target_y = clamp(0, target_y, max_y);
if (cursor.x >= target_x + max_x){
target_x = cursor.x - max_x/2;
}
else if (cursor.x < target_x){
target_x = clamp_bottom(0, 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;
result = true;
}
return(result);
}
internal b32
view_move_cursor_to_view(System_Functions *system, Models *models, View *view, GUI_Scroll_Vars scroll, i32 *pos_in_out, f32 preferred_x){
Editing_File *file = view->file;
Full_Cursor cursor = file_compute_cursor(system, file, seek_pos(*pos_in_out));
i32 line_height = view->line_height;
f32 old_cursor_y = 0.f;
if (file->settings.unwrapped_lines){
old_cursor_y = cursor.unwrapped_y;
}
else{
old_cursor_y = cursor.wrapped_y;
}
f32 cursor_y = old_cursor_y;
f32 target_y = (f32)scroll.target_y;
Cursor_Limits limits = view_cursor_limits(models, view);
if (cursor_y > target_y + limits.max){
cursor_y = target_y + limits.max;
}
if (target_y != 0 && cursor_y < target_y + limits.min){
cursor_y = target_y + limits.min;
}
b32 result = false;
if (cursor_y != old_cursor_y){
if (cursor_y > old_cursor_y){
cursor_y += line_height;
}
else{
cursor_y -= line_height;
}
Buffer_Seek seek = seek_xy(preferred_x, cursor_y, false, file->settings.unwrapped_lines);
cursor = file_compute_cursor(system, file, seek);
*pos_in_out = cursor.pos;
result = true;
}
return(result);
}
internal b32
view_has_unwrapped_lines(View *view){
return(view->file->settings.unwrapped_lines);
}
internal void
view_set_preferred_x(View *view, Full_Cursor cursor){
if (view_has_unwrapped_lines(view)){
view->preferred_x = cursor.unwrapped_x;
}
else{
view->preferred_x = cursor.wrapped_x;
}
}
internal void
view_set_preferred_x_to_current_position(System_Functions *system, View *view){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
Full_Cursor cursor = file_compute_cursor(system, view->file, seek_pos(edit_pos.cursor_pos));
view_set_preferred_x(view, cursor);
}
internal void
view_set_cursor(System_Functions *system, Models *models, View *view, Full_Cursor cursor, b32 set_preferred_x){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
file_edit_positions_set_cursor(&edit_pos, cursor.pos);
if (set_preferred_x){
view_set_preferred_x(view, cursor);
}
view_set_edit_pos(view, edit_pos);
GUI_Scroll_Vars scroll = edit_pos.scroll;
if (view_move_view_to_cursor(system, models, view, &scroll)){
edit_pos.scroll = scroll;
view_set_edit_pos(view, edit_pos);
}
}
internal void
view_set_scroll(System_Functions *system, Models *models, View *view, GUI_Scroll_Vars scroll){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
file_edit_positions_set_scroll(&edit_pos, scroll, view_compute_max_target_y(models, view));
view_set_edit_pos(view, edit_pos);
i32 pos = edit_pos.cursor_pos;
if (view_move_cursor_to_view(system, models, view, edit_pos.scroll, &pos, view->preferred_x)){
Full_Cursor cursor = file_compute_cursor(system, view->file, seek_pos(pos));
edit_pos.cursor_pos = cursor.pos;
view_set_edit_pos(view, edit_pos);
}
}
internal void
view_set_cursor_and_scroll(Models *models, View *view, Full_Cursor cursor, b32 set_preferred_x, GUI_Scroll_Vars scroll){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
file_edit_positions_set_cursor(&edit_pos, cursor.pos);
if (set_preferred_x){
view_set_preferred_x(view, cursor);
}
file_edit_positions_set_scroll(&edit_pos, scroll, view_compute_max_target_y(models, view));
edit_pos.last_set_type = EditPos_None;
view_set_edit_pos(view, edit_pos);
}
internal void
view_post_paste_effect(View *view, f32 seconds, i32 start, i32 size, u32 color){
Editing_File *file = view->file;
file->state.paste_effect.start = start;
file->state.paste_effect.end = start + size;
file->state.paste_effect.color = color;
file->state.paste_effect.seconds_down = seconds;
file->state.paste_effect.seconds_max = seconds;
}
////////////////////////////////
internal void
view_set_file(System_Functions *system, Models *models, View *view, Editing_File *file){
Assert(file != 0);
Editing_File *old_file = view->file;
if (old_file != 0){
file_touch(&models->working_set, old_file);
file_edit_positions_push(old_file, view_get_edit_pos(view));
}
view->file = file;
File_Edit_Positions edit_pos = file_edit_positions_pop(file);
view_set_edit_pos(view, edit_pos);
view->mark = edit_pos.cursor_pos;
view_set_preferred_x_to_current_position(system, view);
Font_Pointers font = system->font.get_pointers_by_id(file->settings.font_id);
view->line_height = font.metrics->height;
models->layout.panel_state_dirty = true;
}
////////////////////////////////
internal b32
file_is_viewed(Layout *layout, Editing_File *file){
b32 is_viewed = false;
for (Panel *panel = layout_get_first_open_panel(layout);
panel != 0;
panel = layout_get_next_open_panel(layout, panel)){
View *view = panel->view;
if (view->file == file){
is_viewed = true;
break;
}
}
return(is_viewed);
}
internal void
adjust_views_looking_at_file_to_new_cursor(System_Functions *system, Models *models, Editing_File *file){
Layout *layout = &models->layout;
for (Panel *panel = layout_get_first_open_panel(layout);
panel != 0;
panel = layout_get_next_open_panel(layout, panel)){
View *view = panel->view;
if (view->file == file){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
Full_Cursor cursor = file_compute_cursor(system, file, seek_pos(edit_pos.cursor_pos));
view_set_cursor(system, models, view, cursor, true);
}
}
}
internal void
file_full_remeasure(System_Functions *system, Models *models, Editing_File *file){
Face_ID font_id = file->settings.font_id;
Font_Pointers font = system->font.get_pointers_by_id(font_id);
file_measure_wraps(system, &models->mem, file, font);
adjust_views_looking_at_file_to_new_cursor(system, models, file);
Layout *layout = &models->layout;
for (Panel *panel = layout_get_first_open_panel(layout);
panel != 0;
panel = layout_get_next_open_panel(layout, panel)){
View *view = panel->view;
if (view->file == file){
view->line_height = font.metrics->height;
}
}
}
internal void
file_set_font(System_Functions *system, Models *models, Editing_File *file, Face_ID font_id){
file->settings.font_id = font_id;
file_full_remeasure(system, models, file);
}
internal void
global_set_font_and_update_files(System_Functions *system, Models *models, Face_ID font_id){
for (Node *node = models->working_set.used_sentinel.next;
node != &models->working_set.used_sentinel;
node = node->next){
Editing_File *file = CastFromMember(Editing_File, main_chain_node, node);
file_set_font(system, models, file, font_id);
}
models->global_font_id = font_id;
}
internal b32
alter_font_and_update_files(System_Functions *system, Models *models, Face_ID font_id, Font_Settings *new_settings){
b32 success = false;
if (system->font.face_change_settings(font_id, new_settings)){
success = true;
for (Node *node = models->working_set.used_sentinel.next;
node != &models->working_set.used_sentinel;
node = node->next){
Editing_File *file = CastFromMember(Editing_File, main_chain_node, node);
if (file->settings.font_id == font_id){
file_full_remeasure(system, models, file);
}
}
}
return(success);
}
internal b32
release_font_and_update_files(System_Functions *system, Models *models, Face_ID font_id, Face_ID replacement_id){
b32 success = false;
if (system->font.face_release(font_id)){
Font_Pointers font = system->font.get_pointers_by_id(replacement_id);
if (!font.valid){
Face_ID largest_id = system->font.get_largest_id();
for (replacement_id = 1; replacement_id <= largest_id && replacement_id > 0; ++replacement_id){
font = system->font.get_pointers_by_id(replacement_id);
if (font.valid){
break;
}
}
Assert(replacement_id <= largest_id && replacement_id > 0);
}
success = true;
for (Node *node = models->working_set.used_sentinel.next;
node != &models->working_set.used_sentinel;
node = node->next){
Editing_File *file = CastFromMember(Editing_File, main_chain_node, node);
if (file->settings.font_id == font_id){
file_set_font(system, models, file, replacement_id);
}
}
}
return(success);
}
////////////////////////////////
internal argb_color
finalize_color(Color_Table color_table, int_color color){
argb_color color_argb = color;
if ((color & 0xFF000000) == 0){
color_argb = color_table.vals[color % color_table.count];
}
return(color_argb);
}
internal void
get_visual_markers(Partition *arena, Dynamic_Workspace *workspace, Range range, Buffer_ID buffer_id, i32 view_index, Color_Table color_table){
View_ID view_id = view_index + 1;
for (Managed_Buffer_Markers_Header *node = workspace->buffer_markers_list.first;
node != 0;
node = node->next){
if (node->buffer_id != buffer_id) continue;
for (Marker_Visual_Data *data = node->visual_first;
data != 0;
data = data->next){
if (data->type == VisualType_Invisible) continue;
if (data->key_view_id != 0 && data->key_view_id != view_id) continue;
Marker_Visual_Type type = data->type;
i32 take_count_per_step = data->take_rule.take_count_per_step;
i32 step_stride_in_marker_count = data->take_rule.step_stride_in_marker_count;
i32 stride_size_from_last = step_stride_in_marker_count - take_count_per_step;
i32 priority = data->priority;
Render_Marker_Brush brush = {};
brush.color_noop = (data->color == 0);
brush.text_color_noop = (data->text_color == 0);
if (!brush.color_noop){
brush.color = finalize_color(color_table, data->color);
}
if (!brush.text_color_noop){
brush.text_color = finalize_color(color_table, data->text_color);
}
Marker *markers = (Marker*)(node + 1);
Assert(sizeof(*markers) == node->std_header.item_size);
i32 count = node->std_header.count;
i32 one_past_last_index = clamp_top(data->one_past_last_take_index, count);
Marker *marker_one_past_last = markers + one_past_last_index;
Marker *marker = markers + data->take_rule.first_index;
switch (type){
default:
{
for (;marker < marker_one_past_last; marker += stride_size_from_last){
for (i32 i = 0;
i < take_count_per_step && marker < marker_one_past_last;
marker += 1, i += 1){
if (range.first <= marker->pos && marker->pos <= range.one_past_last){
Render_Marker *render_marker = push_array(arena, Render_Marker, 1);
render_marker->type = type;
render_marker->pos = marker->pos;
render_marker->brush = brush;
render_marker->one_past_last = marker->pos;
render_marker->priority = priority;
}
}
}
}break;
case VisualType_CharacterHighlightRanges:
case VisualType_LineHighlightRanges:
{
i32 pos_pair[2] = {};
i32 pair_index = 0;
for (;marker < marker_one_past_last; marker += stride_size_from_last){
for (i32 i = 0;
i < take_count_per_step && marker < marker_one_past_last;
marker += 1, i += 1){
pos_pair[pair_index++] = marker->pos;
if (pair_index == 2){
pair_index = 0;
Range range_b = {};
range_b.first = pos_pair[0];
range_b.one_past_last = pos_pair[1];
if (range_b.first == range_b.one_past_last) continue;
if (range_b.first > range_b.one_past_last){
Swap(i32, range_b.first, range_b.one_past_last);
}
if (!((range.min - range_b.max <= 0) && (range.max - range_b.min >= 0))) {
continue;
}
Render_Marker *render_marker = push_array(arena, Render_Marker, 1);
render_marker->type = type;
render_marker->pos = range_b.min;
render_marker->brush = brush;
render_marker->one_past_last = range_b.max;
render_marker->priority = priority;
}
}
}
}break;
}
}
}
}
internal i32
marker_type_to_segment_rank(Marker_Visual_Type type){
switch (type){
case VisualType_LineHighlights:
{
return(1);
}break;
case VisualType_CharacterHighlightRanges:
{
return(2);
}break;
case VisualType_LineHighlightRanges:
{
return(3);
}break;
}
return(0);
}
global_const i32 max_visual_type_rank = 3;
internal i32
split_sort(Render_Marker *markers, i32 first, i32 one_past_last, i32 min_in_high_segment){
i32 i1 = first;
i32 i0 = one_past_last - 1;
for (;;){
for (;i1 < one_past_last &&
marker_type_to_segment_rank(markers[i1].type) < min_in_high_segment;
i1 += 1);
for (;i0 >= 0 &&
marker_type_to_segment_rank(markers[i0].type) >= min_in_high_segment;
i0 -= 1);
if (i1 < i0){
Swap(Render_Marker, markers[i0], markers[i1]);
}
else{
break;
}
}
return(i1);
}
internal void
visual_markers_segment_sort(Render_Marker *markers, i32 first, i32 one_past_last, Range *ranges_out){
i32 pos = first;
for (i32 i = 0; i < max_visual_type_rank; i += 1){
ranges_out[i].first = pos;
pos = split_sort(markers, pos, one_past_last, i + 1);
ranges_out[i].one_past_last = pos;
}
ranges_out[max_visual_type_rank].first = pos;
ranges_out[max_visual_type_rank].one_past_last = one_past_last;
}
internal void
visual_markers_quick_sort(Render_Marker *markers, i32 first, i32 one_past_last){
if (first + 1 < one_past_last){
i32 pivot_index = one_past_last - 1;
{
b32 go_left = false;
i32 pivot_key = markers[pivot_index].pos;
i32 j = first;
for (i32 i = first; i < pivot_index; i += 1){
i32 key = markers[i].pos;
b32 swap_in = false;
if (key < pivot_key){
swap_in = true;
}
else if (key == pivot_key){
if (go_left){
swap_in = true;
}
go_left = !go_left;
}
if (swap_in){
Swap(Render_Marker, markers[i], markers[j]);
j += 1;
}
}
Swap(Render_Marker, markers[j], markers[pivot_index]);
pivot_index = j;
}
visual_markers_quick_sort(markers, first, pivot_index);
visual_markers_quick_sort(markers, pivot_index + 1, one_past_last);
}
}
internal void
visual_markers_replace_pos_with_first_byte_of_line(Render_Marker_Array markers, i32 *line_starts, i32 line_count, i32 hint_line_index){
if (markers.count > 0){
Assert(0 <= hint_line_index && hint_line_index < line_count);
i32 marker_scan_index = 0;
for (i32 line_scan_index = hint_line_index;; line_scan_index += 1){
Assert(line_scan_index < line_count);
i32 look_ahead_line_index = line_scan_index + 1;
i32 first_byte_index_of_next_line = 0;
if (look_ahead_line_index < line_count){
first_byte_index_of_next_line = line_starts[look_ahead_line_index];
}
else{
first_byte_index_of_next_line = max_i32;
}
i32 first_byte_index_of_this_line = line_starts[line_scan_index];
for (;(marker_scan_index < markers.count &&
markers.markers[marker_scan_index].pos < first_byte_index_of_next_line);
marker_scan_index += 1){
markers.markers[marker_scan_index].pos = first_byte_index_of_this_line;
}
if (marker_scan_index == markers.count){
break;
}
}
}
}
internal i32
range_record_stack_get_insert_index(Render_Range_Record *records, i32 count, i32 priority){
i32 insert_pos = 0;
i32 first = 0;
i32 one_past_last = count + 1;
for (;;){
if (first + 1 >= one_past_last){
insert_pos = first;
break;
}
i32 mid = (first + one_past_last)/2;
// i - 1 is too big?
b32 too_big = false;
if (mid > 0){
if (records[mid - 1].priority > priority){
too_big = true;
}
}
// i is too small?
b32 too_small = false;
if (!too_big && mid < count){
if (records[mid].priority <= priority){
too_small = true;
}
}
// bisect
if (too_big){
one_past_last = mid;
}
else if (too_small){
first = mid + 1;
}
else{
insert_pos = mid;
break;
}
}
return(insert_pos);
}
internal u32
get_token_color(Color_Table color_table, Cpp_Token token){
u32 result = 0;
if ((token.flags & CPP_TFLAG_IS_KEYWORD) != 0){
if (cpp_token_category_from_type(token.type) == CPP_TOKEN_CAT_BOOLEAN_CONSTANT){
result = color_table.vals[Stag_Bool_Constant];
}
else{
result = color_table.vals[Stag_Keyword];
}
}
else if ((token.flags & CPP_TFLAG_PP_DIRECTIVE) != 0){
result = color_table.vals[Stag_Preproc];
}
else{
switch (token.type){
case CPP_TOKEN_COMMENT:
{
result = color_table.vals[Stag_Comment];
}break;
case CPP_TOKEN_STRING_CONSTANT:
{
result = color_table.vals[Stag_Str_Constant];
}break;
case CPP_TOKEN_CHARACTER_CONSTANT:
{
result = color_table.vals[Stag_Char_Constant];
}break;
case CPP_TOKEN_INTEGER_CONSTANT:
{
result = color_table.vals[Stag_Int_Constant];
}break;
case CPP_TOKEN_FLOATING_CONSTANT:
{
result = color_table.vals[Stag_Float_Constant];
}break;
case CPP_PP_INCLUDE_FILE:
{
result = color_table.vals[Stag_Include];
}break;
default:
{
result = color_table.vals[Stag_Default];
}break;
}
}
return(result);
}
internal Render_Marker_Brush
render__get_brush_from_range_stack(Render_Range_Record *stack, i32 stack_top){
Render_Marker_Brush brush = {true, true};
Render_Range_Record *record = &stack[stack_top];
for (i32 i = stack_top; i >= 0; i -= 1, record -= 1){
if (brush.color_noop && !record->brush.color_noop){
brush.color_noop = false;
brush.color = record->brush.color;
}
if (brush.text_color_noop && !record->brush.text_color_noop){
brush.text_color_noop = false;
brush.text_color = record->brush.text_color;
}
if (!brush.color_noop && !brush.text_color_noop){
break;
}
}
return(brush);
}
internal void
render_loaded_file_in_view__inner(Models *models, Render_Target *target, View *view,
i32_Rect rect, Full_Cursor render_cursor, Range on_screen_range,
Buffer_Render_Item *items, i32 item_count){
Editing_File *file = view->file;
Partition *part = &models->mem.part;
Color_Table color_table = models->color_table;
Assert(file != 0);
Assert(!file->is_dummy);
Assert(buffer_good(&file->state.buffer));
b32 tokens_use = file->state.tokens_complete && (file->state.token_array.count > 0);
Cpp_Token_Array token_array = file->state.token_array;
b32 wrapped = !file->settings.unwrapped_lines;
Face_ID font_id = file->settings.font_id;
// NOTE(allen): Get visual markers
Render_Marker_Array markers = {};
markers.markers = push_array(part, Render_Marker, 0);
{
Lifetime_Object *lifetime_object = file->lifetime_object;
Buffer_ID buffer_id = file->id.id;
i32 view_index = view_get_index(&models->live_set, view);
get_visual_markers(part, &lifetime_object->workspace, on_screen_range, buffer_id, view_index, color_table);
i32 key_count = lifetime_object->key_count;
i32 key_index = 0;
for (Lifetime_Key_Ref_Node *node = lifetime_object->key_node_first;
node != 0;
node = node->next){
i32 local_count = clamp_top(lifetime_key_reference_per_node, key_count - key_index);
for (i32 i = 0; i < local_count; i += 1){
Lifetime_Key *key = node->keys[i];
get_visual_markers(part, &key->dynamic_workspace, on_screen_range, buffer_id, view_index, color_table);
}
key_index += local_count;
}
}
markers.count = (i32)(push_array(part, Render_Marker, 0) - markers.markers);
// NOTE(allen): Sort visual markers by position
Range marker_segments[4];
visual_markers_segment_sort(markers.markers, 0, markers.count, marker_segments);
for (i32 i = 0; i < ArrayCount(marker_segments); i += 1){
visual_markers_quick_sort(markers.markers, marker_segments[i].first, marker_segments[i].one_past_last);
}
Render_Marker_Array character_markers = {};
character_markers.markers = markers.markers + marker_segments[0].first;
character_markers.count = marker_segments[0].one_past_last - marker_segments[0].first;
Render_Marker_Array line_markers = {};
line_markers.markers = markers.markers + marker_segments[1].first;
line_markers.count = marker_segments[1].one_past_last - marker_segments[1].first;
Render_Marker_Array range_markers = {};
range_markers.markers = markers.markers + marker_segments[2].first;
range_markers.count = marker_segments[2].one_past_last - marker_segments[2].first;
Render_Marker_Array line_range_markers = {};
line_range_markers.markers = markers.markers + marker_segments[3].first;
line_range_markers.count = marker_segments[3].one_past_last - marker_segments[3].first;
Render_Range_Record *range_stack = push_array(part, Render_Range_Record, range_markers.count);
i32 range_stack_top = -1;
Render_Range_Record *line_range_stack = push_array(part, Render_Range_Record, line_range_markers.count);
i32 line_range_stack_top = -1;
i32 *line_starts = file->state.buffer.line_starts;
i32 line_count = file->state.buffer.line_count;
i32 line_scan_index = render_cursor.line - 1;
i32 first_byte_index_of_next_line = 0;
if (line_scan_index + 1 < line_count){
first_byte_index_of_next_line = line_starts[line_scan_index + 1];
}
else{
first_byte_index_of_next_line = max_i32;
}
i32 *wrap_starts = file->state.wrap_positions;
i32 wrap_count = file->state.wrap_position_count;
if (wrap_count > 0 && wrap_starts[wrap_count - 1] == buffer_size(&file->state.buffer)){
wrap_count -= 1;
}
i32 wrap_scan_index = render_cursor.wrap_line - render_cursor.line;
i32 first_byte_index_of_next_wrap = 0;
if (wrap_scan_index + 1 < wrap_count){
first_byte_index_of_next_wrap = wrap_starts[wrap_scan_index + 1];
}
else{
first_byte_index_of_next_wrap = max_i32;
}
visual_markers_replace_pos_with_first_byte_of_line(line_markers, line_starts, line_count, line_scan_index);
visual_markers_replace_pos_with_first_byte_of_line(line_range_markers, line_starts, line_count, line_scan_index);
i32 visual_markers_scan_index = 0;
i32 visual_line_markers_scan_index = 0;
u32 visual_line_markers_color = 0;
i32 visual_range_markers_scan_index = 0;
i32 visual_line_range_markers_scan_index = 0;
i32 token_i = 0;
u32 main_color = color_table.vals[Stag_Default];
u32 special_color = color_table.vals[Stag_Special_Character];
u32 ghost_color = color_table.vals[Stag_Ghost_Character];
if (tokens_use){
Cpp_Get_Token_Result result = cpp_get_token(token_array, items->index);
main_color = get_token_color(color_table, token_array.tokens[result.token_index]);
token_i = result.token_index + 1;
}
Buffer_Render_Item *item = items;
Buffer_Render_Item *item_end = item + item_count;
i32 prev_ind = -1;
u32 highlight_color = 0;
for (; item < item_end; ++item){
i32 ind = item->index;
// NOTE(allen): Line scanning
b32 is_new_line = false;
for (; line_scan_index < line_count;){
if (ind < first_byte_index_of_next_line){
break;
}
line_scan_index += 1;
is_new_line = true;
if (line_scan_index + 1 < line_count){
first_byte_index_of_next_line = line_starts[line_scan_index + 1];
}
else{
first_byte_index_of_next_line = max_i32;
}
}
if (item == items){
is_new_line = true;
}
// NOTE(allen): Wrap scanning
b32 is_new_wrap = false;
if (wrapped){
for (; wrap_scan_index < wrap_count;){
if (ind < first_byte_index_of_next_wrap){
break;
}
wrap_scan_index += 1;
is_new_wrap = true;
if (wrap_scan_index + 1 < wrap_count){
first_byte_index_of_next_wrap = wrap_starts[wrap_scan_index + 1];
}
else{
first_byte_index_of_next_wrap = max_i32;
}
}
}
// NOTE(allen): Token scanning
u32 highlight_this_color = 0;
if (tokens_use && ind != prev_ind){
Cpp_Token current_token = token_array.tokens[token_i-1];
if (token_i < token_array.count){
if (ind >= token_array.tokens[token_i].start){
for (;token_i < token_array.count && ind >= token_array.tokens[token_i].start; ++token_i){
main_color = get_token_color(color_table, token_array.tokens[token_i]);
current_token = token_array.tokens[token_i];
}
}
else if (ind >= current_token.start + current_token.size){
main_color = color_table.vals[Stag_Default];
}
}
if (current_token.type == CPP_TOKEN_JUNK && ind >= current_token.start && ind < current_token.start + current_token.size){
highlight_color = color_table.vals[Stag_Highlight_Junk];
}
else{
highlight_color = 0;
}
}
if (item->y1 > 0){
f32_Rect char_rect = f32R(item->x0, item->y0, item->x1, item->y1);
u32 char_color = main_color;
if (item->flags & BRFlag_Special_Character){
char_color = special_color;
}
else if (item->flags & BRFlag_Ghost_Character){
char_color = ghost_color;
}
if (view->show_whitespace && highlight_color == 0 && codepoint_is_whitespace(item->codepoint)){
highlight_this_color = color_table.vals[Stag_Highlight_White];
}
else{
highlight_this_color = highlight_color;
}
// NOTE(allen): Line marker color
if (is_new_line){
visual_line_markers_color = 0;
// NOTE(allen): Line range marker color
for (;visual_line_range_markers_scan_index < line_range_markers.count &&
line_range_markers.markers[visual_line_range_markers_scan_index].pos <= ind;
visual_line_range_markers_scan_index += 1){
Render_Marker *marker = &line_range_markers.markers[visual_line_range_markers_scan_index];
Render_Range_Record range_record = {};
range_record.brush = marker->brush;
range_record.one_past_last = marker->one_past_last;
range_record.priority = marker->priority;
i32 insert_pos = range_record_stack_get_insert_index(line_range_stack, line_range_stack_top + 1, range_record.priority);
memmove(line_range_stack + insert_pos + 1, line_range_stack + insert_pos, sizeof(*line_range_stack)*(line_range_stack_top - insert_pos + 1));
line_range_stack[insert_pos] = range_record;
line_range_stack_top += 1;
}
for (;line_range_stack_top >= 0 && ind > line_range_stack[line_range_stack_top].one_past_last; line_range_stack_top -= 1);
Render_Marker_Brush brush = render__get_brush_from_range_stack(line_range_stack, line_range_stack_top);
if (!brush.color_noop){
visual_line_markers_color = brush.color;
}
// NOTE(allen): Single line marker color
i32 visual_line_markers_best_priority = min_i32;
for (;visual_line_markers_scan_index < line_markers.count &&
line_markers.markers[visual_line_markers_scan_index].pos <= ind;
visual_line_markers_scan_index += 1){
Render_Marker *marker = &line_markers.markers[visual_line_markers_scan_index];
Assert(marker->type == VisualType_LineHighlights);
if (marker->priority > visual_line_markers_best_priority){
if (!marker->brush.color_noop){
visual_line_markers_color = marker->brush.color;
visual_line_markers_best_priority = marker->priority;
}
}
}
}
u32 marker_line_highlight = 0;
if (is_new_line || is_new_wrap){
marker_line_highlight = visual_line_markers_color;
}
// NOTE(allen): Visual marker colors
i32 marker_highlight_best_priority = min_i32;
i32 marker_highlight_text_best_priority = min_i32;
u32 marker_highlight = 0;
u32 marker_highlight_text = 0;
i32 marker_wireframe_best_priority = min_i32;
u32 marker_wireframe = 0;
i32 marker_ibar_best_priority = min_i32;
u32 marker_ibar = 0;
// NOTE(allen): Highlight range marker color
for (;visual_range_markers_scan_index < range_markers.count &&
range_markers.markers[visual_range_markers_scan_index].pos <= ind;
visual_range_markers_scan_index += 1){
Render_Marker *marker = &range_markers.markers[visual_range_markers_scan_index];
Render_Range_Record range_record = {};
range_record.brush = marker->brush;
range_record.one_past_last = marker->one_past_last;
range_record.priority = marker->priority;
i32 insert_pos = range_record_stack_get_insert_index(range_stack, range_stack_top + 1, range_record.priority);
memmove(range_stack + insert_pos + 1, range_stack + insert_pos, sizeof(*range_stack)*(range_stack_top - insert_pos + 1));
range_stack[insert_pos] = range_record;
range_stack_top += 1;
}
for (;range_stack_top >= 0 && ind >= range_stack[range_stack_top].one_past_last; range_stack_top -= 1);
{
Render_Marker_Brush brush = render__get_brush_from_range_stack(range_stack, range_stack_top);
if (!brush.color_noop){
marker_highlight = brush.color;
}
if (!brush.text_color_noop){
marker_highlight_text = brush.text_color;
}
}
// NOTE(allen): Highlight single characters
for (;visual_markers_scan_index < character_markers.count &&
character_markers.markers[visual_markers_scan_index].pos <= ind;
visual_markers_scan_index += 1){
Render_Marker *marker = &character_markers.markers[visual_markers_scan_index];
switch (marker->type){
case VisualType_CharacterBlocks:
{
if (marker->priority > marker_highlight_best_priority){
if (!marker->brush.color_noop){
marker_highlight = marker->brush.color;
}
marker_highlight_best_priority = marker->priority;
}
if (marker->priority > marker_highlight_text_best_priority){
if (!marker->brush.text_color_noop){
marker_highlight_text = marker->brush.text_color;
}
marker_highlight_text_best_priority = marker->priority;
}
}break;
case VisualType_CharacterWireFrames:
{
if (marker->priority > marker_wireframe_best_priority){
if (!marker->brush.color_noop){
marker_wireframe = marker->brush.color;
marker_wireframe_best_priority = marker->priority;
}
}
}break;
case VisualType_CharacterIBars:
{
if (marker->priority > marker_ibar_best_priority){
if (!marker->brush.color_noop){
marker_ibar = marker->brush.color;
marker_ibar_best_priority = marker->priority;
}
}
}break;
default:
{
InvalidCodePath;
}break;
}
}
// NOTE(allen): Perform highlight, wireframe, and ibar renders
u32 color_highlight = 0;
u32 color_wireframe = 0;
u32 color_ibar = 0;
if (marker_highlight != 0){
if (color_highlight == 0){
color_highlight = marker_highlight;
}
}
if (marker_wireframe != 0){
if (color_wireframe == 0){
color_wireframe = marker_wireframe;
}
}
if (marker_ibar != 0){
if (color_ibar == 0){
color_ibar = marker_ibar;
}
}
if (highlight_this_color != 0){
if (color_highlight == 0){
color_highlight = highlight_this_color;
}
}
if (marker_line_highlight != 0){
f32_Rect line_rect = f32R((f32)rect.x0, char_rect.y0, (f32)rect.x1, char_rect.y1);
draw_rectangle(target, line_rect, marker_line_highlight);
}
if (color_highlight != 0){
draw_rectangle(target, char_rect, color_highlight);
}
if (marker_highlight_text != SymbolicColor_Default){
char_color = marker_highlight_text;
}
u32 fade_color = 0xFFFF00FF;
f32 fade_amount = 0.f;
if (file->state.paste_effect.seconds_down > 0.f &&
file->state.paste_effect.start <= ind &&
ind < file->state.paste_effect.end){
fade_color = file->state.paste_effect.color;
fade_amount = file->state.paste_effect.seconds_down;
fade_amount /= file->state.paste_effect.seconds_max;
}
char_color = color_blend(char_color, fade_amount, fade_color);
if (item->codepoint != 0){
draw_font_glyph(target, font_id, item->codepoint, item->x0, item->y0, char_color, GlyphFlag_None);
}
if (color_wireframe != 0){
draw_rectangle_outline(target, char_rect, color_wireframe);
}
if (color_ibar != 0){
f32_Rect ibar_rect = f32R(char_rect.x0, char_rect.y0, char_rect.x0 + 1, char_rect.y1);
draw_rectangle_outline(target, ibar_rect, color_ibar);
}
}
prev_ind = ind;
}
}
internal void
dont_do_core_render(Application_Links *app){}
internal void
do_core_render(Application_Links *app){
Models *models = (Models*)app->cmd_context;
Render_Target *target = models->target;
View *view = models->render_view;
i32_Rect rect = models->render_buffer_rect;
Full_Cursor render_cursor = models->render_cursor;
Range on_screen_range = models->render_range;
Buffer_Render_Item *items = models->render_items;
i32 item_count = models->render_item_count;
draw_push_clip(target, rect);
render_loaded_file_in_view__inner(models, target, view, rect, render_cursor, on_screen_range, items, item_count);
draw_pop_clip(target);
}
internal Full_Cursor
view_get_render_cursor(System_Functions *system, View *view, f32 scroll_y){
Full_Cursor result = {};
Editing_File *file = view->file;
if (file->settings.unwrapped_lines){
result = file_compute_cursor_hint(system, file, seek_unwrapped_xy(0, scroll_y, false));
}
else{
result = file_compute_cursor(system, file, seek_wrapped_xy(0, scroll_y, false));
}
return(result);
}
internal Full_Cursor
view_get_render_cursor(System_Functions *system, View *view){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
f32 scroll_y = edit_pos.scroll.scroll_y;
//scroll_y += view->widget_height;
return(view_get_render_cursor(system, view, scroll_y));
}
internal Full_Cursor
view_get_render_cursor_target(System_Functions *system, View *view){
File_Edit_Positions edit_pos = view_get_edit_pos(view);
f32 scroll_y = (f32)edit_pos.scroll.target_y;
//scroll_y += view->widget_height;
return(view_get_render_cursor(system, view, scroll_y));
}
internal void
view_call_render_caller(Models *models, Render_Target *target, View *view,
i32_Rect rect, Full_Cursor render_cursor, Range on_screen_range, Buffer_Render_Item *items, i32 item_count,
Render_Callback *core_render){
if (models->render_caller != 0){
View_ID view_id = view_get_id(&models->live_set, view);
models->render_view = view;
models->render_view_rect = view->panel->rect_inner;
models->render_buffer_rect = rect;
models->render_cursor = render_cursor;
models->render_range = on_screen_range;
models->render_items = items;
models->render_item_count = item_count;
Render_Parameters params = {};
params.view_id= view_id;
params.on_screen_range = on_screen_range;
params.frame.index = target->frame_index;
params.frame.literal_dt = target->literal_dt;
params.frame.animation_dt = target->animation_dt;
params.do_core_render = core_render;
models->render_caller(&models->app_links, params);
models->render_view = 0;
}
}
internal void
render_loaded_file_in_view(System_Functions *system, View *view, Models *models, i32_Rect rect, b32 is_active, Render_Target *target){
Editing_File *file = view->file;
i32 line_height = view->line_height;
f32 max_x = (f32)file->settings.display_width;
i32 max_y = rect.y1 - rect.y0 + line_height;
Assert(file != 0);
Assert(!file->is_dummy);
Assert(buffer_good(&file->state.buffer));
Partition *part = &models->mem.part;
Temp_Memory temp = begin_temp_memory(part);
push_align(part, 4);
f32 left_side_space = 0;
i32 max = part_remaining(part)/sizeof(Buffer_Render_Item);
Buffer_Render_Item *items = push_array(part, Buffer_Render_Item, 0);
b32 wrapped = !file->settings.unwrapped_lines;
Face_ID font_id = file->settings.font_id;
Font_Pointers font = system->font.get_pointers_by_id(font_id);
File_Edit_Positions edit_pos = view_get_edit_pos(view);
f32 scroll_x = edit_pos.scroll.scroll_x;
f32 scroll_y = edit_pos.scroll.scroll_y;
Full_Cursor render_cursor = view_get_render_cursor(system, view);
i32 item_count = 0;
i32 end_pos = 0;
{
Buffer_Render_Params params;
params.buffer = &file->state.buffer;
params.items = items;
params.max = max;
params.count = &item_count;
params.port_x = (f32)rect.x0 + left_side_space;
params.port_y = (f32)rect.y0;
params.clip_w = view_width(models, view) - left_side_space;
params.scroll_x = scroll_x;
params.scroll_y = scroll_y;
params.width = max_x;
params.height = (f32)max_y;
params.start_cursor = render_cursor;
params.wrapped = wrapped;
params.system = system;
params.font = font;
params.virtual_white = file->settings.virtual_white;
params.wrap_slashes = file->settings.wrap_indicator;
Buffer_Render_State state = {};
Buffer_Layout_Stop stop = {};
f32 line_shift = 0.f;
b32 do_wrap = false;
i32 wrap_unit_end = 0;
b32 first_wrap_determination = 1;
i32 wrap_array_index = 0;
do{
stop = buffer_render_data(&state, params, line_shift, do_wrap, wrap_unit_end);
switch (stop.status){
case BLStatus_NeedWrapDetermination:
{
if (first_wrap_determination){
wrap_array_index = binary_search(file->state.wrap_positions, stop.pos, 0, file->state.wrap_position_count);
++wrap_array_index;
if (file->state.wrap_positions[wrap_array_index] == stop.pos){
do_wrap = true;
wrap_unit_end = file->state.wrap_positions[wrap_array_index];
}
else{
do_wrap = false;
wrap_unit_end = file->state.wrap_positions[wrap_array_index];
}
first_wrap_determination = 0;
}
else{
Assert(stop.pos == wrap_unit_end);
do_wrap = true;
++wrap_array_index;
wrap_unit_end = file->state.wrap_positions[wrap_array_index];
}
}break;
case BLStatus_NeedWrapLineShift:
case BLStatus_NeedLineShift:
{
line_shift = file->state.line_indents[stop.wrap_line_index];
}break;
}
}while(stop.status != BLStatus_Finished);
end_pos = state.i;
}
push_array(part, Buffer_Render_Item, item_count);
Range on_screen_range = {};
on_screen_range.first = render_cursor.pos;
on_screen_range.one_past_last = end_pos;
////////////////////////////////
if (models->render_caller != 0){
view_call_render_caller(models, target, view, rect, render_cursor, on_screen_range, items, item_count, do_core_render);
}
else{
render_loaded_file_in_view__inner(models, target, view, rect, render_cursor, on_screen_range, items, item_count);
}
end_temp_memory(temp);
}
// BOTTOM
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