Word wrapping works!
This commit is contained in:
Allen Webster
parent
187f91084a
commit
2ba875a474
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@ -2717,8 +2717,6 @@ draw_rectangle(Application_Links *app, Rect_f32 rect, f32 roundness, FColor colo
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if (models->in_render_mode){
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Color_Table color_table = models->color_table;
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u32 actual_color = finalize_color(color_table, color);
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f32 scale = system_get_screen_scale_factor();
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roundness *= scale;
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draw_rectangle(models->target, rect, roundness, actual_color);
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}
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}
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@ -2730,9 +2728,6 @@ draw_rectangle_outline(Application_Links *app, Rect_f32 rect,
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if (models->in_render_mode){
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Color_Table color_table = models->color_table;
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u32 actual_color = finalize_color(color_table, color);
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f32 scale = system_get_screen_scale_factor();
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roundness *= scale;
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thickness *= scale;
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draw_rectangle_outline(models->target, rect, roundness, thickness, actual_color);
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}
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}
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@ -281,188 +281,6 @@ default_buffer_region(Application_Links *app, View_ID view_id, Rect_f32 region){
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return(region);
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}
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internal void
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buffer_layout__write(Arena *arena, Layout_Item_List *list,
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i64 index, u32 codepoint, Layout_Item_Flag flags, Rect_f32 rect){
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Temp_Memory restore_point = begin_temp(arena);
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Layout_Item *item = push_array(arena, Layout_Item, 1);
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Layout_Item_Block *block = list->first;
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if (block != 0){
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if (block->items + block->count == item){
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block->count += 1;
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}
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else{
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block = 0;
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}
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}
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if (block == 0){
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end_temp(restore_point);
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block = push_array(arena, Layout_Item_Block, 1);
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item = push_array(arena, Layout_Item, 1);
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sll_queue_push(list->first, list->last, block);
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list->node_count += 1;
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block->items = item;
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block->count = 1;
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}
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list->total_count += 1;
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if (index > list->index_range.max){
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block->character_count += 1;
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list->character_count += 1;
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list->index_range.max = index;
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}
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item->index = index;
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item->codepoint = codepoint;
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item->flags = flags;
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item->rect = rect;
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list->height = max(list->height, rect.y1);
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}
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function Layout_Item_List
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default_buffer_layout(Application_Links *app, Arena *arena, Buffer_ID buffer, Range_i64 range,
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Face_ID face, f32 width){
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Scratch_Block scratch(app);
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Layout_Item_List list = {};
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list.index_range.first = range.first;
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list.index_range.one_past_last = range.first - 1;
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String_Const_u8 text = push_buffer_range(app, scratch, buffer, range);
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Face_Metrics metrics = get_face_metrics(app, face);
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f32 line_height = metrics.line_height;
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f32 text_height = metrics.text_height;
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f32 line_to_text_shift = text_height - line_height;
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f32 space_advance = metrics.space_advance;
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Face_Advance_Map advance_map = get_face_advance_map(app, face);
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if (text.size == 0){
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f32 next_x = space_advance;
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buffer_layout__write(arena, &list, range.first, ' ', 0,
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Rf32(V2(0.f, 0.f), V2f32(next_x, text_height)));
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}
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else{
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Vec2_f32 p = {};
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f32 line_y = line_height;
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f32 text_y = text_height;
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i64 index = range.first;
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b32 first_of_the_line = true;
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b32 consuming_newline_characters = false;
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i64 newline_character_index = -1;
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b32 prev_did_emit_newline = false;
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u8 *ptr = text.str;
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u8 *end_ptr = ptr + text.size;
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for (;ptr < end_ptr;){
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Character_Consume_Result consume = utf8_consume(ptr, (umem)(end_ptr - ptr));
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u32 render_codepoint = consume.codepoint;
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b32 emit_newline = false;
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switch (consume.codepoint){
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case '\t':
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{
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render_codepoint = ' ';
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}//fallthrough;
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default:
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{
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f32 advance = font_get_glyph_advance(&advance_map, &metrics,
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consume.codepoint);
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f32 next_x = p.x + advance;
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if (!first_of_the_line && next_x >= width){
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p.y = line_y;
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p.x = 0.f;
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line_y += line_height;
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text_y = line_y + line_to_text_shift;
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next_x = p.x + advance;
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}
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buffer_layout__write(arena, &list, index, render_codepoint, 0,
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Rf32(p, V2f32(next_x, text_y)));
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p.x = next_x;
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ptr += consume.inc;
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index += consume.inc;
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first_of_the_line = false;
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}break;
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case '\r':
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{
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if (!consuming_newline_characters){
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consuming_newline_characters = true;
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newline_character_index = index;
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}
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ptr += 1;
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index += 1;
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}break;
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case '\n':
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{
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if (!consuming_newline_characters){
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consuming_newline_characters = true;
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newline_character_index = index;
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}
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emit_newline = true;
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ptr += 1;
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index += 1;
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}break;
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case max_u32:
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{
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f32 next_x = p.x + metrics.byte_advance;
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if (!first_of_the_line && next_x >= width){
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p.y = line_y;
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p.x = 0.f;
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line_y += line_height;
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text_y = line_y + line_to_text_shift;
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next_x = p.x + metrics.byte_advance;
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}
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u32 v = *ptr;
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u32 lo = v&0xF;
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u32 hi = (v >> 4)&0xF;
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f32 advance = metrics.byte_sub_advances[0];
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buffer_layout__write(arena, &list, index, '\\', 0,
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Rf32(p, V2f32(p.x + advance, text_y)));
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p.x += advance;
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advance = metrics.byte_sub_advances[1];
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buffer_layout__write(arena, &list, index, integer_symbols[lo], 0,
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Rf32(p, V2f32(p.x + advance, text_y)));
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p.x += advance;
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advance = metrics.byte_sub_advances[2];
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buffer_layout__write(arena, &list, index, integer_symbols[hi], 0,
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Rf32(p, V2f32(p.x + advance, text_y)));
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p.x = next_x;
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ptr += 1;
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index += 1;
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first_of_the_line = false;
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}break;
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}
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prev_did_emit_newline = false;
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if (emit_newline){
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f32 next_x = p.x + space_advance;
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buffer_layout__write(arena, &list, newline_character_index, ' ', 0,
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Rf32(p, V2f32(next_x, text_y)));
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p.y = line_y;
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p.x = 0.f;
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line_y += line_height;
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text_y = line_y + line_to_text_shift;
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first_of_the_line = true;
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prev_did_emit_newline = true;
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}
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}
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if (!prev_did_emit_newline){
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f32 next_x = p.x + space_advance;
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buffer_layout__write(arena, &list, index, ' ', 0, Rf32(p, V2f32(next_x, text_y)));
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}
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}
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list.bottom_extension = -line_to_text_shift;
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list.height += list.bottom_extension;
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return(list);
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}
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function void
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default_render_buffer(Application_Links *app, View_ID view_id, b32 is_active_view,
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Buffer_ID buffer, Text_Layout_ID text_layout_id,
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@ -1113,7 +931,8 @@ set_all_default_hooks(Application_Links *app){
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set_custom_hook(app, HookID_SaveFile, default_file_save);
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set_custom_hook(app, HookID_BufferEditRange, default_buffer_edit_range);
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set_custom_hook(app, HookID_BufferRegion, default_buffer_region);
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set_custom_hook(app, HookID_Layout, default_buffer_layout);
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set_custom_hook(app, HookID_Layout, layout_wrap_whitespace);
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}
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// BOTTOM
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@ -80,6 +80,7 @@
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#include "4coder_font_helper.cpp"
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#include "4coder_config.cpp"
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#include "4coder_default_framework.cpp"
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#include "4coder_layout_rule.cpp"
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#include "4coder_lister_base.cpp"
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#include "4coder_base_commands.cpp"
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#include "4coder_insertion.cpp"
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@ -0,0 +1,390 @@
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/*
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4coder_layout_rule.cpp - Built in layout rules and layout rule helpers.
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*/
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// TOP
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function void
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layout_write(Arena *arena, Layout_Item_List *list,
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i64 index, u32 codepoint, Layout_Item_Flag flags, Rect_f32 rect){
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Temp_Memory restore_point = begin_temp(arena);
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Layout_Item *item = push_array(arena, Layout_Item, 1);
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Layout_Item_Block *block = list->first;
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if (block != 0){
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if (block->items + block->count == item){
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block->count += 1;
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}
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else{
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block = 0;
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}
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}
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if (block == 0){
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end_temp(restore_point);
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block = push_array(arena, Layout_Item_Block, 1);
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item = push_array(arena, Layout_Item, 1);
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sll_queue_push(list->first, list->last, block);
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list->node_count += 1;
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block->items = item;
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block->count = 1;
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}
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list->total_count += 1;
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if (index > list->index_range.max){
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block->character_count += 1;
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list->character_count += 1;
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list->index_range.max = index;
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}
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item->index = index;
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item->codepoint = codepoint;
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item->flags = flags;
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item->rect = rect;
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list->height = max(list->height, rect.y1);
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}
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function Layout_Item_List
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layout_wrap_anywhere(Application_Links *app, Arena *arena, Buffer_ID buffer,
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Range_i64 range, Face_ID face, f32 width){
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Scratch_Block scratch(app);
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Layout_Item_List list = {};
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list.index_range.first = range.first;
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list.index_range.one_past_last = range.first - 1;
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String_Const_u8 text = push_buffer_range(app, scratch, buffer, range);
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Face_Advance_Map advance_map = get_face_advance_map(app, face);
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Face_Metrics metrics = get_face_metrics(app, face);
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f32 line_height = metrics.line_height;
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f32 text_height = metrics.text_height;
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f32 line_to_text_shift = text_height - line_height;
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f32 space_advance = metrics.space_advance;
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if (text.size == 0){
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f32 next_x = space_advance;
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layout_write(arena, &list, range.first, ' ', 0,
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Rf32(V2(0.f, 0.f), V2f32(next_x, text_height)));
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}
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else{
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Vec2_f32 p = {};
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f32 line_y = line_height;
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f32 text_y = text_height;
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i64 index = range.first;
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b32 first_of_the_line = true;
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b32 consuming_newline_characters = false;
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i64 newline_character_index = -1;
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b32 prev_did_emit_newline = false;
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u8 *ptr = text.str;
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u8 *end_ptr = ptr + text.size;
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for (;ptr < end_ptr;){
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Character_Consume_Result consume = utf8_consume(ptr, (umem)(end_ptr - ptr));
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u32 render_codepoint = consume.codepoint;
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b32 emit_newline = false;
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switch (consume.codepoint){
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case '\t':
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{
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render_codepoint = ' ';
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}//fallthrough;
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default:
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{
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f32 advance = font_get_glyph_advance(&advance_map, &metrics,
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consume.codepoint);
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f32 next_x = p.x + advance;
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if (!first_of_the_line && next_x > width){
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p.y = line_y;
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p.x = 0.f;
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line_y += line_height;
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text_y = line_y + line_to_text_shift;
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next_x = advance;
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}
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layout_write(arena, &list, index,
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render_codepoint, 0,
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Rf32(p, V2f32(next_x, text_y)));
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p.x = next_x;
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ptr += consume.inc;
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index += consume.inc;
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first_of_the_line = false;
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}break;
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case '\r':
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{
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if (!consuming_newline_characters){
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consuming_newline_characters = true;
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newline_character_index = index;
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}
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ptr += 1;
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index += 1;
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}break;
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case '\n':
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{
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if (!consuming_newline_characters){
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consuming_newline_characters = true;
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newline_character_index = index;
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}
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emit_newline = true;
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ptr += 1;
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index += 1;
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}break;
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case max_u32:
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{
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f32 next_x = p.x + metrics.byte_advance;
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if (!first_of_the_line && next_x > width){
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p.y = line_y;
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p.x = 0.f;
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line_y += line_height;
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text_y = line_y + line_to_text_shift;
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next_x = p.x + metrics.byte_advance;
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}
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u32 v = *ptr;
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u32 lo = v&0xF;
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u32 hi = (v >> 4)&0xF;
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f32 advance = metrics.byte_sub_advances[0];
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layout_write(arena, &list, index, '\\', 0,
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Rf32(p, V2f32(p.x + advance, text_y)));
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p.x += advance;
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advance = metrics.byte_sub_advances[1];
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layout_write(arena, &list, index, integer_symbols[hi], 0,
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Rf32(p, V2f32(p.x + advance, text_y)));
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p.x += advance;
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advance = metrics.byte_sub_advances[2];
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layout_write(arena, &list, index, integer_symbols[lo], 0,
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Rf32(p, V2f32(p.x + advance, text_y)));
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p.x = next_x;
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ptr += 1;
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index += 1;
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first_of_the_line = false;
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}break;
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}
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prev_did_emit_newline = false;
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if (emit_newline){
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f32 next_x = p.x + space_advance;
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layout_write(arena, &list, newline_character_index, ' ', 0,
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Rf32(p, V2f32(next_x, text_y)));
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p.y = line_y;
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p.x = 0.f;
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line_y += line_height;
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text_y = line_y + line_to_text_shift;
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first_of_the_line = true;
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prev_did_emit_newline = true;
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}
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}
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if (!prev_did_emit_newline){
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f32 next_x = p.x + space_advance;
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layout_write(arena, &list, index, ' ', 0,
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Rf32(p, V2f32(next_x, text_y)));
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}
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}
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list.bottom_extension = -line_to_text_shift;
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list.height += list.bottom_extension;
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return(list);
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}
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function Layout_Item_List
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layout_wrap_whitespace(Application_Links *app, Arena *arena, Buffer_ID buffer,
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Range_i64 range, Face_ID face, f32 width){
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Scratch_Block scratch(app);
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Layout_Item_List list = {};
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list.index_range.first = range.first;
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list.index_range.one_past_last = range.first - 1;
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String_Const_u8 text = push_buffer_range(app, scratch, buffer, range);
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Face_Advance_Map advance_map = get_face_advance_map(app, face);
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Face_Metrics metrics = get_face_metrics(app, face);
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f32 line_height = metrics.line_height;
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f32 text_height = metrics.text_height;
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f32 line_to_text_shift = text_height - line_height;
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f32 space_advance = metrics.space_advance;
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if (text.size == 0){
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f32 next_x = space_advance;
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layout_write(arena, &list, range.first, ' ', 0,
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Rf32(V2(0.f, 0.f), V2f32(next_x, text_height)));
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}
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else{
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Vec2_f32 p = {};
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f32 line_y = line_height;
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f32 text_y = text_height;
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b32 first_of_the_line = true;
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b32 consuming_newline_characters = false;
|
||||
i64 newline_character_index = -1;
|
||||
b32 prev_did_emit_newline = false;
|
||||
|
||||
u8 *ptr = text.str;
|
||||
u8 *end_ptr = ptr + text.size;
|
||||
u8 *word_ptr = ptr;
|
||||
|
||||
if (character_is_whitespace(*ptr)){
|
||||
goto consuming_whitespace;
|
||||
}
|
||||
|
||||
consuming_non_whitespace:
|
||||
consuming_newline_characters = false;
|
||||
newline_character_index = -1;
|
||||
|
||||
for (;ptr <= end_ptr; ptr += 1){
|
||||
if (ptr == end_ptr || character_is_whitespace(*ptr)){
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
String_Const_u8 word = SCu8(word_ptr, ptr);
|
||||
u8 *word_end = ptr;
|
||||
|
||||
if (!first_of_the_line){
|
||||
f32 total_advance = 0.f;
|
||||
ptr = word.str;
|
||||
for (; ptr < word_end;){
|
||||
Character_Consume_Result consume =
|
||||
utf8_consume(ptr, (umem)(word_end - ptr));
|
||||
if (consume.codepoint != max_u32){
|
||||
f32 advance = font_get_glyph_advance(&advance_map, &metrics,
|
||||
consume.codepoint);
|
||||
total_advance += advance;
|
||||
}
|
||||
else{
|
||||
total_advance += metrics.byte_advance;
|
||||
}
|
||||
ptr += consume.inc;
|
||||
}
|
||||
|
||||
f32 next_x = p.x + total_advance;
|
||||
if (next_x > width){
|
||||
p.y = line_y;
|
||||
p.x = 0.f;
|
||||
line_y += line_height;
|
||||
text_y = line_y + line_to_text_shift;
|
||||
next_x = total_advance;
|
||||
}
|
||||
}
|
||||
|
||||
ptr = word.str;
|
||||
|
||||
for (; ptr < word_end;){
|
||||
Character_Consume_Result consume =
|
||||
utf8_consume(ptr, (umem)(word_end - ptr));
|
||||
|
||||
if (consume.codepoint != max_u32){
|
||||
f32 advance = font_get_glyph_advance(&advance_map, &metrics,
|
||||
consume.codepoint);
|
||||
i64 index = (i64)(ptr - text.str) + range.first;
|
||||
layout_write(arena, &list, index,
|
||||
consume.codepoint, 0,
|
||||
Rf32(p, V2f32(p.x + advance, text_y)));
|
||||
p.x += advance;
|
||||
}
|
||||
else{
|
||||
u32 v = *ptr;
|
||||
u32 lo = v&0xF;
|
||||
u32 hi = (v >> 4)&0xF;
|
||||
i64 index = (i64)(ptr - text.str) + range.first;
|
||||
f32 advance = metrics.byte_sub_advances[0];
|
||||
layout_write(arena, &list, index, '\\', 0,
|
||||
Rf32(p, V2f32(p.x + advance, text_y)));
|
||||
p.x += advance;
|
||||
advance = metrics.byte_sub_advances[1];
|
||||
layout_write(arena, &list, index, integer_symbols[hi], 0,
|
||||
Rf32(p, V2f32(p.x + advance, text_y)));
|
||||
p.x += advance;
|
||||
advance = metrics.byte_sub_advances[2];
|
||||
layout_write(arena, &list, index, integer_symbols[lo], 0,
|
||||
Rf32(p, V2f32(p.x + advance, text_y)));
|
||||
p.x += advance;
|
||||
}
|
||||
|
||||
ptr += consume.inc;
|
||||
}
|
||||
|
||||
first_of_the_line = false;
|
||||
}
|
||||
|
||||
consuming_whitespace:
|
||||
for (; ptr < end_ptr; ptr += 1){
|
||||
if (!character_is_whitespace(*ptr)){
|
||||
word_ptr = ptr;
|
||||
goto consuming_non_whitespace;
|
||||
}
|
||||
|
||||
b32 emit_newline = false;
|
||||
|
||||
switch (*ptr){
|
||||
default:
|
||||
{
|
||||
f32 advance = space_advance;
|
||||
if (*ptr == '\t'){
|
||||
advance *= 4.f;
|
||||
}
|
||||
f32 next_x = p.x + advance;
|
||||
if (!first_of_the_line && next_x > width){
|
||||
p.y = line_y;
|
||||
p.x = 0.f;
|
||||
line_y += line_height;
|
||||
text_y = line_y + line_to_text_shift;
|
||||
next_x = advance;
|
||||
}
|
||||
i64 index = (i64)(ptr - text.str) + range.first;
|
||||
layout_write(arena, &list, index,
|
||||
' ', 0,
|
||||
Rf32(p, V2f32(next_x, text_y)));
|
||||
p.x = next_x;
|
||||
first_of_the_line = false;
|
||||
}break;
|
||||
|
||||
case '\r':
|
||||
{
|
||||
if (!consuming_newline_characters){
|
||||
consuming_newline_characters = true;
|
||||
newline_character_index = (i64)(ptr - text.str) + range.first;
|
||||
}
|
||||
}break;
|
||||
|
||||
case '\n':
|
||||
{
|
||||
if (!consuming_newline_characters){
|
||||
consuming_newline_characters = true;
|
||||
newline_character_index = (i64)(ptr - text.str) + range.first;
|
||||
}
|
||||
emit_newline = true;
|
||||
}break;
|
||||
}
|
||||
|
||||
if (emit_newline){
|
||||
f32 next_x = p.x + space_advance;
|
||||
layout_write(arena, &list, newline_character_index, ' ', 0,
|
||||
Rf32(p, V2f32(next_x, text_y)));
|
||||
p.y = line_y;
|
||||
p.x = 0.f;
|
||||
line_y += line_height;
|
||||
text_y = line_y + line_to_text_shift;
|
||||
first_of_the_line = true;
|
||||
}
|
||||
prev_did_emit_newline = emit_newline;
|
||||
}
|
||||
|
||||
if (!prev_did_emit_newline){
|
||||
f32 next_x = p.x + space_advance;
|
||||
i64 index = (i64)(ptr - text.str) + range.first;
|
||||
layout_write(arena, &list, index, ' ', 0,
|
||||
Rf32(p, V2f32(next_x, text_y)));
|
||||
}
|
||||
}
|
||||
list.bottom_extension = -line_to_text_shift;
|
||||
list.height += list.bottom_extension;
|
||||
|
||||
return(list);
|
||||
}
|
||||
|
||||
// BOTTOM
|
||||
|
||||
Loading…
Reference in New Issue