764 lines
26 KiB
C++
764 lines
26 KiB
C++
/*
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* Lister base
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*/
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// TOP
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function Vec2_f32
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panel_space_from_screen_space(Vec2_f32 p, Vec2_f32 file_region_p0){
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return(p - file_region_p0);
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}
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function Vec2_f32
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get_mouse_position_in_panel_space(Mouse_State mouse, Vec2_f32 file_region_p0){
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return(panel_space_from_screen_space(V2f32(mouse.p), file_region_p0));
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}
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function Vec2_f32
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get_mouse_position_in_panel_space(Application_Links *app, Vec2_f32 file_region_p0){
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return(get_mouse_position_in_panel_space(get_mouse_state(app), file_region_p0));
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}
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////////////////////////////////
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function f32
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lister_get_text_field_height(f32 line_height){
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return(line_height);
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}
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function f32
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lister_get_block_height(f32 line_height){
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return(line_height*2);
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}
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function Rect_f32_Pair
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lister_get_top_level_layout(Rect_f32 rect, f32 text_field_height){
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return(rect_split_top_bottom(rect, text_field_height));
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}
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////////////////////////////////
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Lister *global_lister_state[16] = {};
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function Lister*
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view_get_lister(View_ID view){
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return(global_lister_state[view - 1]);
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}
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function void
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lister_set_map(Lister *lister, Mapping *mapping, Command_Map *map){
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lister->mapping = mapping;
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lister->map = map;
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}
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function void
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lister_set_map(Lister *lister, Mapping *mapping, Command_Map_ID map){
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lister->mapping = mapping;
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lister->map = mapping_get_map(mapping, map);
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}
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function Lister*
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begin_lister(Application_Links *app, Arena *arena, View_ID view,
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void *user_data, umem user_data_size){
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Lister *lister = push_array_zero(arena, Lister, 1);
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lister->arena = arena;
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lister->query = Su8(lister->query_space, 0, sizeof(lister->query_space));
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lister->text_field = Su8(lister->text_field_space, 0, sizeof(lister->text_field_space));
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lister->key_string = Su8(lister->key_string_space, 0, sizeof(lister->key_string_space));
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lister->user_data = user_data;
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lister->user_data_size = user_data_size;
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if (user_data == 0){
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lister->user_data = push_array_zero(arena, u8, user_data_size);
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}
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global_lister_state[view - 1] = lister;
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lister->restore_all_point = begin_temp(lister->arena);
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View_Context ctx = view_current_context(app, view);
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lister_set_map(lister, ctx.mapping, ctx.map_id);
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return(lister);
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}
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function void
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lister_set_string(String_Const_u8 string, String_u8 *target){
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target->size = 0;
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string_append(target, string);
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}
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function void
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lister_append_string(String_Const_u8 string, String_u8 *target){
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string_append(target, string);
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}
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function void
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lister_set_query(Lister *lister, String_Const_u8 string){
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lister_set_string(string, &lister->query);
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}
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function void
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lister_set_query(Lister *lister, char *string){
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lister_set_string(SCu8(string), &lister->query);
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}
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function void
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lister_set_text_field(Lister *lister, String_Const_u8 string){
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lister_set_string(string, &lister->text_field);
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}
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function void
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lister_set_text_field(Lister *lister, char *string){
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lister_set_string(SCu8(string), &lister->text_field);
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}
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function void
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lister_set_key(Lister *lister, String_Const_u8 string){
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lister_set_string(string, &lister->key_string);
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}
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function void
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lister_set_key(Lister *lister, char *string){
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lister_set_string(SCu8(string), &lister->key_string);
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}
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function void
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lister_append_query(Lister *lister, String_Const_u8 string){
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lister_append_string(string, &lister->query);
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}
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function void
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lister_append_query(Lister *lister, char *string){
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lister_append_string(SCu8(string), &lister->query);
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}
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function void
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lister_append_text_field(Lister *lister, String_Const_u8 string){
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lister_append_string(string, &lister->text_field);
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}
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function void
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lister_append_text_field(Lister *lister, char *string){
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lister_append_string(SCu8(string), &lister->text_field);
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}
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function void
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lister_append_key(Lister *lister, String_Const_u8 string){
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lister_append_string(string, &lister->key_string);
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}
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function void
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lister_append_key(Lister *lister, char *string){
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lister_append_string(SCu8(string), &lister->key_string);
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}
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function void
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lister_zero_scroll(Lister *lister){
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block_zero_struct(&lister->scroll);
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}
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function void
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lister_render(Application_Links *app, Frame_Info frame_info, View_ID view){
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Scratch_Block scratch(app);
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Lister *lister = view_get_lister(view);
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if (lister == 0){
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return;
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}
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Rect_f32 region = draw_background_and_margin(app, view);
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Rect_f32 prev_clip = draw_set_clip(app, region);
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Face_ID face_id = get_face_id(app, 0);
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Face_Metrics metrics = get_face_metrics(app, face_id);
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f32 line_height = metrics.line_height;
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f32 block_height = lister_get_block_height(line_height);
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f32 text_field_height = lister_get_text_field_height(line_height);
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// NOTE(allen): file bar
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b64 showing_file_bar = false;
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if (view_get_setting(app, view, ViewSetting_ShowFileBar, &showing_file_bar) &&
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showing_file_bar &&
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!global_config.hide_file_bar_in_ui){
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Rect_f32_Pair pair = layout_file_bar_on_top(region, line_height);
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Buffer_ID buffer = view_get_buffer(app, view, Access_Always);
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draw_file_bar(app, view, buffer, face_id, pair.min);
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region = pair.max;
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}
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Mouse_State mouse = get_mouse_state(app);
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Vec2_f32 m_p = V2f32(mouse.p);
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lister->visible_count = (i32)((rect_height(region)/block_height)) - 3;
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lister->visible_count = clamp_bot(1, lister->visible_count);
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Rect_f32 text_field_rect = {};
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Rect_f32 list_rect = {};
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{
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Rect_f32_Pair pair = lister_get_top_level_layout(region, text_field_height);
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text_field_rect = pair.min;
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list_rect = pair.max;
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}
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{
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Fancy_String_List text_field = {};
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push_fancy_string(scratch, &text_field, fancy_id(Stag_Pop1),
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lister->query.string);
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push_fancy_stringf(scratch, &text_field, fancy_id(Stag_Pop1), " ");
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push_fancy_string(scratch, &text_field, fancy_id(Stag_Default),
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lister->text_field.string);
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draw_fancy_string(app, face_id, text_field.first,
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V2f32(text_field_rect.x0 + 3.f, text_field_rect.y0),
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Stag_Default, Stag_Back, 0, V2f32(1.f, 0.f));
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}
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Range_f32 x = rect_range_x(list_rect);
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draw_set_clip(app, list_rect);
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// NOTE(allen): auto scroll to the item if the flag is set.
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f32 scroll_y = lister->scroll.position.y;
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if (lister->set_vertical_focus_to_item){
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lister->set_vertical_focus_to_item = false;
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Range_f32 item_y = If32_size(lister->item_index*block_height, block_height);
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f32 view_h = rect_height(list_rect);
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Range_f32 view_y = If32_size(scroll_y, view_h);
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if (view_y.min > item_y.min || item_y.max > view_y.max){
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f32 item_center = (item_y.min + item_y.max)*0.5f;
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f32 view_center = (view_y.min + view_y.max)*0.5f;
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f32 margin = view_h*.3f;
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margin = clamp_top(margin, block_height*3.f);
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if (item_center < view_center){
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lister->scroll.target.y = item_y.min - margin;
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}
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else{
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f32 target_bot = item_y.max + margin;
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lister->scroll.target.y = target_bot - view_h;
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}
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}
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}
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// NOTE(allen): clamp scroll target and position; smooth scroll rule
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i32 count = lister->filtered.count;
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Range_f32 scroll_range = If32(0.f, clamp_bot(0.f, count*block_height - block_height));
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lister->scroll.target.y = clamp_range(scroll_range, lister->scroll.target.y);
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lister->scroll.target.x = 0.f;
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Vec2_f32_Delta_Result delta = delta_apply(app, view,
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frame_info.animation_dt, lister->scroll);
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lister->scroll.position = delta.p;
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if (delta.still_animating){
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animate_in_n_milliseconds(app, 0);
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}
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lister->scroll.position.y = clamp_range(scroll_range, lister->scroll.position.y);
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lister->scroll.position.x = 0.f;
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scroll_y = lister->scroll.position.y;
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f32 y_pos = list_rect.y0 - scroll_y;
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i32 first_index = (i32)(scroll_y/block_height);
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y_pos += first_index*block_height;
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for (i32 i = first_index; i < count; i += 1){
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Lister_Node *node = lister->filtered.node_ptrs[i];
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Range_f32 y = If32(y_pos, y_pos + block_height);
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y_pos = y.max;
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Rect_f32 item_rect = Rf32(x, y);
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Rect_f32 item_inner = rect_inner(item_rect, 3.f);
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b32 hovered = rect_contains_point(item_rect, m_p);
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UI_Highlight_Level highlight = UIHighlight_None;
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if (node == lister->highlighted_node){
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highlight = UIHighlight_Active;
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}
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else if (node->user_data == lister->hot_user_data){
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if (hovered){
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highlight = UIHighlight_Active;
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}
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else{
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highlight = UIHighlight_Hover;
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}
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}
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else if (hovered){
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highlight = UIHighlight_Hover;
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}
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draw_rectangle(app, item_rect, 6.f, get_margin_color(highlight));
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draw_rectangle(app, item_inner, 6.f, Stag_Back);
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Fancy_String_List line = {};
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push_fancy_string(scratch, &line, fancy_id(Stag_Default), node->string);
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push_fancy_stringf(scratch, &line, fancy_id(Stag_Default), " ");
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push_fancy_string(scratch, &line, fancy_id(Stag_Pop2), node->status);
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Vec2_f32 p = V2f32(item_inner.x0 + 3.f, item_inner.y0 + (block_height - line_height)*0.5f);
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draw_fancy_string(app, face_id, line.first, p, Stag_Default, 0, 0, V2(1.f, 0.f));
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}
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draw_set_clip(app, prev_clip);
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}
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function void*
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lister_get_user_data(Lister *lister, i32 index){
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void *result = 0;
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if (0 <= index && index < lister->options.count){
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i32 counter = 0;
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for (Lister_Node *node = lister->options.first;
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node != 0;
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node = node->next, counter += 1){
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if (counter == index){
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result = node->user_data;
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break;
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}
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}
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}
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return(result);
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}
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function Lister_Filtered
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lister_get_filtered(Arena *arena, Lister *lister){
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i32 node_count = lister->options.count;
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Lister_Filtered filtered = {};
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filtered.exact_matches.node_ptrs = push_array(arena, Lister_Node*, 1);
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filtered.before_extension_matches.node_ptrs = push_array(arena, Lister_Node*, node_count);
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filtered.substring_matches.node_ptrs = push_array(arena, Lister_Node*, node_count);
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Temp_Memory_Block temp(arena);
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String_Const_u8 key = lister->key_string.string;
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key = push_string_copy(arena, key);
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string_mod_replace_character(key, '_', '*');
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string_mod_replace_character(key, ' ', '*');
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List_String_Const_u8 absolutes = {};
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string_list_push(arena, &absolutes, string_u8_litexpr(""));
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List_String_Const_u8 splits = string_split(arena, key, (u8*)"*", 1);
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b32 has_wildcard = (splits.node_count > 1);
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string_list_push(&absolutes, &splits);
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string_list_push(arena, &absolutes, string_u8_litexpr(""));
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for (Lister_Node *node = lister->options.first;
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node != 0;
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node = node->next){
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String_Const_u8 node_string = node->string;
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if (key.size == 0 || string_wildcard_match_insensitive(absolutes, node_string)){
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if (string_match_insensitive(node_string, key) && filtered.exact_matches.count == 0){
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filtered.exact_matches.node_ptrs[filtered.exact_matches.count++] = node;
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}
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else if (!has_wildcard &&
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string_match_insensitive(string_prefix(node_string, key.size), key) &&
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node->string.size > key.size &&
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node->string.str[key.size] == '.'){
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filtered.before_extension_matches.node_ptrs[filtered.before_extension_matches.count++] = node;
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}
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else{
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filtered.substring_matches.node_ptrs[filtered.substring_matches.count++] = node;
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}
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}
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}
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return(filtered);
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}
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function void
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lister_update_selection_values(Lister *lister){
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lister->raw_item_index = -1;
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lister->highlighted_node = 0;
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i32 count = lister->filtered.count;
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for (i32 i = 0; i < count; i += 1){
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Lister_Node *node = lister->filtered.node_ptrs[i];
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if (lister->item_index == i){
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lister->highlighted_node = node;
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lister->raw_item_index = node->raw_index;
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}
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}
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}
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function void
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lister_update_filtered_list(Application_Links *app, View_ID view, Lister *lister){
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Scratch_Block scratch(app, Scratch_Share);
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Lister_Filtered filtered = lister_get_filtered(scratch, lister);
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Lister_Node_Ptr_Array node_ptr_arrays[] = {
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filtered.exact_matches,
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filtered.before_extension_matches,
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filtered.substring_matches,
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};
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Arena *arena = lister->arena;
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end_temp(lister->filter_restore_point);
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i32 total_count = 0;
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for (i32 array_index = 0; array_index < ArrayCount(node_ptr_arrays); array_index += 1){
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Lister_Node_Ptr_Array node_ptr_array = node_ptr_arrays[array_index];
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total_count += node_ptr_array.count;
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}
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Lister_Node **node_ptrs = push_array(arena, Lister_Node*, total_count);
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lister->filtered.node_ptrs = node_ptrs;
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lister->filtered.count = total_count;
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i32 counter = 0;
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for (i32 array_index = 0; array_index < ArrayCount(node_ptr_arrays); array_index += 1){
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Lister_Node_Ptr_Array node_ptr_array = node_ptr_arrays[array_index];
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for (i32 node_index = 0; node_index < node_ptr_array.count; node_index += 1){
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Lister_Node *node = node_ptr_array.node_ptrs[node_index];
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node_ptrs[counter] = node;
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counter += 1;
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}
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}
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lister_update_selection_values(lister);
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}
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function void
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lister_call_refresh_handler(Application_Links *app, View_ID view, Lister *lister){
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if (lister->handlers.refresh != 0){
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lister->handlers.refresh(app, lister);
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lister->filter_restore_point = begin_temp(lister->arena);
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lister_update_filtered_list(app, view, lister);
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}
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}
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function void
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lister_default(Application_Links *app, View_ID view, Lister *lister, Lister_Activation_Code code){
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switch (code){
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case ListerActivation_Finished:
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{}break;
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case ListerActivation_Continue:
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{}break;
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case ListerActivation_ContinueAndRefresh:
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{
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lister->item_index = 0;
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lister_call_refresh_handler(app, view, lister);
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}break;
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}
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}
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function Lister_Activation_Code
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lister_call_activate_handler(Application_Links *app, View_ID view, Lister *lister,
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void *user_data, b32 activated_by_mouse){
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Lister_Activation_Code result = ListerActivation_Finished;
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if (lister->handlers.activate != 0){
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result = lister->handlers.activate(app, view, lister, lister->text_field.string,
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user_data, activated_by_mouse);
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}
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else{
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lister_default(app, view, lister, ListerActivation_Finished);
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}
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return(result);
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}
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function void*
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lister_user_data_at_p(Application_Links *app, View_ID view, Lister *lister, Vec2_f32 m_p){
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Rect_f32 region = view_get_screen_rect(app, view);
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// TODO(allen): eliminate this. bad bad bad bad :(
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region = rect_inner(region, 3.f);
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Face_ID face_id = get_face_id(app, 0);
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Face_Metrics metrics = get_face_metrics(app, face_id);
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f32 line_height = metrics.line_height;
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f32 block_height = lister_get_block_height(line_height);
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f32 text_field_height = lister_get_text_field_height(line_height);
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b64 showing_file_bar = false;
|
|
if (view_get_setting(app, view, ViewSetting_ShowFileBar, &showing_file_bar) &&
|
|
showing_file_bar &&
|
|
!global_config.hide_file_bar_in_ui){
|
|
Rect_f32_Pair pair = layout_file_bar_on_top(region, line_height);
|
|
region = pair.max;
|
|
}
|
|
|
|
Rect_f32_Pair pair = lister_get_top_level_layout(region, text_field_height);
|
|
Rect_f32 list_rect = pair.max;
|
|
|
|
void *result = 0;
|
|
if (rect_contains_point(list_rect, m_p)){
|
|
f32 y = m_p.y - list_rect.y0 + lister->scroll.position.y;
|
|
i32 index = (i32)(y/block_height);
|
|
if (0 <= index && index < lister->filtered.count){
|
|
Lister_Node *node = lister->filtered.node_ptrs[index];
|
|
result = node->user_data;
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
function void
|
|
lister_run(Application_Links *app, View_ID view, Lister *lister){
|
|
lister->filter_restore_point = begin_temp(lister->arena);
|
|
lister_update_filtered_list(app, view, lister);
|
|
|
|
View_Context ctx = view_current_context(app, view);
|
|
ctx.render_caller = lister_render;
|
|
ctx.hides_buffer = true;
|
|
view_push_context(app, view, &ctx);
|
|
|
|
for (;;){
|
|
User_Input in = get_next_input(app, EventPropertyGroup_Any, EventProperty_Escape);
|
|
if (in.abort){
|
|
break;
|
|
}
|
|
|
|
Lister_Activation_Code result = ListerActivation_Continue;
|
|
b32 handled = true;
|
|
switch (in.event.kind){
|
|
case InputEventKind_TextInsert:
|
|
{
|
|
if (lister->handlers.write_character != 0){
|
|
lister->handlers.write_character(app);
|
|
}
|
|
}break;
|
|
|
|
case InputEventKind_KeyStroke:
|
|
{
|
|
switch (in.event.key.code){
|
|
case KeyCode_Return:
|
|
case KeyCode_Tab:
|
|
{
|
|
void *user_data = 0;
|
|
if (0 <= lister->raw_item_index &&
|
|
lister->raw_item_index < lister->options.count){
|
|
user_data = lister_get_user_data(lister, lister->raw_item_index);
|
|
}
|
|
result = lister_call_activate_handler(app, view, lister,
|
|
user_data, false);
|
|
}break;
|
|
|
|
case KeyCode_Backspace:
|
|
{
|
|
if (lister->handlers.backspace != 0){
|
|
lister->handlers.backspace(app);
|
|
}
|
|
else if (lister->handlers.key_stroke != 0){
|
|
result = lister->handlers.key_stroke(app);
|
|
}
|
|
else{
|
|
handled = false;
|
|
}
|
|
}break;
|
|
|
|
case KeyCode_Up:
|
|
{
|
|
if (lister->handlers.navigate != 0){
|
|
lister->handlers.navigate(app, view, lister, -1);
|
|
}
|
|
else{
|
|
handled = false;
|
|
}
|
|
}break;
|
|
|
|
case KeyCode_Down:
|
|
{
|
|
if (lister->handlers.navigate != 0){
|
|
lister->handlers.navigate(app, view, lister, 1);
|
|
}
|
|
else{
|
|
handled = false;
|
|
}
|
|
}break;
|
|
|
|
case KeyCode_PageUp:
|
|
{
|
|
if (lister->handlers.navigate != 0){
|
|
lister->handlers.navigate(app, view, lister,
|
|
-lister->visible_count);
|
|
}
|
|
else{
|
|
handled = false;
|
|
}
|
|
}break;
|
|
|
|
case KeyCode_PageDown:
|
|
{
|
|
if (lister->handlers.navigate != 0){
|
|
lister->handlers.navigate(app, view, lister,
|
|
lister->visible_count);
|
|
}
|
|
else{
|
|
handled = false;
|
|
}
|
|
}break;
|
|
|
|
default:
|
|
{
|
|
if (lister->handlers.key_stroke != 0){
|
|
result = lister->handlers.key_stroke(app);
|
|
}
|
|
else{
|
|
handled = false;
|
|
}
|
|
}break;
|
|
}
|
|
}break;
|
|
|
|
case InputEventKind_MouseButton:
|
|
{
|
|
switch (in.event.mouse.code){
|
|
case MouseCode_Left:
|
|
{
|
|
Vec2_f32 p = V2f32(in.event.mouse.p);
|
|
void *clicked = lister_user_data_at_p(app, view, lister, p);
|
|
lister->hot_user_data = clicked;
|
|
}break;
|
|
|
|
default:
|
|
{
|
|
handled = false;
|
|
}break;
|
|
}
|
|
}break;
|
|
|
|
case InputEventKind_MouseButtonRelease:
|
|
{
|
|
switch (in.event.mouse.code){
|
|
case MouseCode_Left:
|
|
{
|
|
if (lister->hot_user_data != 0){
|
|
Vec2_f32 p = V2f32(in.event.mouse.p);
|
|
void *clicked = lister_user_data_at_p(app, view, lister, p);
|
|
if (lister->hot_user_data == clicked){
|
|
result = lister_call_activate_handler(app, view, lister,
|
|
clicked, true);
|
|
}
|
|
}
|
|
lister->hot_user_data = 0;
|
|
}break;
|
|
|
|
default:
|
|
{
|
|
handled = false;
|
|
}break;
|
|
}
|
|
}break;
|
|
|
|
case InputEventKind_MouseWheel:
|
|
{
|
|
Mouse_State mouse = get_mouse_state(app);
|
|
lister->scroll.target.y += mouse.wheel;
|
|
lister_update_filtered_list(app, view, lister);
|
|
}break;
|
|
|
|
case InputEventKind_MouseMove:
|
|
case InputEventKind_Core:
|
|
{
|
|
lister_update_filtered_list(app, view, lister);
|
|
}break;
|
|
|
|
default:
|
|
{
|
|
handled = false;
|
|
}break;
|
|
}
|
|
|
|
if (result == ListerActivation_Finished){
|
|
break;
|
|
}
|
|
|
|
if (!handled){
|
|
// TODO(allen): dedup this stuff.
|
|
Mapping *mapping = lister->mapping;
|
|
Command_Map *map = lister->map;
|
|
if (ui_fallback_command_dispatch(app, view, mapping, map, &in)){
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
view_pop_context(app, view);
|
|
}
|
|
|
|
function Lister_Prealloced_String
|
|
lister_prealloced(String_Const_u8 string){
|
|
Lister_Prealloced_String result = {};
|
|
result.string = string;
|
|
return(result);
|
|
}
|
|
|
|
function void
|
|
lister_begin_new_item_set(Application_Links *app, Lister *lister){
|
|
end_temp(lister->restore_all_point);
|
|
block_zero_struct(&lister->options);
|
|
block_zero_struct(&lister->filtered);
|
|
}
|
|
|
|
function void*
|
|
lister_add_item(Lister *lister, Lister_Prealloced_String string, Lister_Prealloced_String status,
|
|
void *user_data, umem extra_space){
|
|
void *base_memory = push_array(lister->arena, u8, sizeof(Lister_Node) + extra_space);
|
|
Lister_Node *node = (Lister_Node*)base_memory;
|
|
node->string = string.string;
|
|
node->status = status.string;
|
|
node->user_data = user_data;
|
|
node->raw_index = lister->options.count;
|
|
zdll_push_back(lister->options.first, lister->options.last, node);
|
|
lister->options.count += 1;
|
|
void *result = (node + 1);
|
|
return(result);
|
|
}
|
|
|
|
function void*
|
|
lister_add_item(Lister *lister, Lister_Prealloced_String string, String_Const_u8 status,
|
|
void *user_data, umem extra_space){
|
|
return(lister_add_item(lister, string, lister_prealloced(push_string_copy(lister->arena, status)),
|
|
user_data, extra_space));
|
|
}
|
|
|
|
function void*
|
|
lister_add_item(Lister *lister, String_Const_u8 string, Lister_Prealloced_String status,
|
|
void *user_data, umem extra_space){
|
|
return(lister_add_item(lister, lister_prealloced(push_string_copy(lister->arena, string)), status,
|
|
user_data, extra_space));
|
|
}
|
|
|
|
function void*
|
|
lister_add_item(Lister *lister, String_Const_u8 string, String_Const_u8 status, void *user_data, umem extra_space){
|
|
return(lister_add_item(lister,
|
|
lister_prealloced(push_string_copy(lister->arena, string)),
|
|
lister_prealloced(push_string_copy(lister->arena, status)),
|
|
user_data, extra_space));
|
|
}
|
|
|
|
function void
|
|
lister__write_string__default(Application_Links *app){
|
|
View_ID view = get_active_view(app, Access_Always);
|
|
Lister *lister = view_get_lister(view);
|
|
if (lister != 0){
|
|
User_Input in = get_current_input(app);
|
|
String_Const_u8 string = to_writable(&in);
|
|
if (string.str != 0 && string.size > 0){
|
|
lister_append_text_field(lister, string);
|
|
lister_append_key(lister, string);
|
|
lister->item_index = 0;
|
|
lister_zero_scroll(lister);
|
|
lister_update_filtered_list(app, view, lister);
|
|
}
|
|
}
|
|
}
|
|
|
|
function void
|
|
lister__backspace_text_field__default(Application_Links *app){
|
|
View_ID view = get_active_view(app, Access_Always);
|
|
Lister *lister = view_get_lister(view);
|
|
if (lister != 0){
|
|
lister->text_field.string = backspace_utf8(lister->text_field.string);
|
|
lister->key_string.string = backspace_utf8(lister->key_string.string);
|
|
lister->item_index = 0;
|
|
lister_zero_scroll(lister);
|
|
lister_update_filtered_list(app, view, lister);
|
|
}
|
|
}
|
|
|
|
function void
|
|
lister__navigate__default(Application_Links *app, View_ID view, Lister *lister,
|
|
i32 delta){
|
|
i32 new_index = lister->item_index + delta;
|
|
if (new_index < 0 && lister->item_index == 0){
|
|
lister->item_index = lister->filtered.count - 1;
|
|
}
|
|
else if (new_index >= lister->filtered.count &&
|
|
lister->item_index == lister->filtered.count - 1){
|
|
lister->item_index = 0;
|
|
}
|
|
else{
|
|
lister->item_index = clamp(0, new_index, lister->filtered.count - 1);
|
|
}
|
|
lister->set_vertical_focus_to_item = true;
|
|
lister_update_selection_values(lister);
|
|
}
|
|
|
|
// BOTTOM
|
|
|