comparison: src/font.c
src/font.c
- changeset 66
- 8297afa1c29c
- parent 65
- 9c44c55d327a
equal
deleted
inserted
replaced
| 65:9c44c55d327a | 66:8297afa1c29c |
|---|---|
| 27 | 27 |
| 28 #include "ascension/ui/font.h" | 28 #include "ascension/ui/font.h" |
| 29 #include "ascension/context.h" | 29 #include "ascension/context.h" |
| 30 #include "ascension/error.h" | 30 #include "ascension/error.h" |
| 31 | 31 |
| 32 #include <assert.h> | |
| 33 #include <cx/array_list.h> | |
| 34 | |
| 35 void asc_font(enum AscFontStyle style, int size) { | |
| 36 asc_context.active_font.style = style; | |
| 37 asc_context.active_font.size = size; | |
| 38 } | |
| 39 | |
| 32 static char const *asc_font_filename(enum AscFontStyle style) { | 40 static char const *asc_font_filename(enum AscFontStyle style) { |
| 33 // TODO: do not assume we are running from the program dir | 41 // TODO: do not assume we are running from the program dir |
| 34 switch (style) { | 42 switch (style) { |
| 35 case ASC_FONT_REGULAR: | 43 case ASC_FONT_REGULAR: |
| 36 return "fonts/OpenSans-Regular.ttf"; | 44 return "fonts/OpenSans-Regular.ttf"; |
| 41 case ASC_FONT_BOLD_ITALIC: | 49 case ASC_FONT_BOLD_ITALIC: |
| 42 return "fonts/OpenSans-BoldItalic.ttf"; | 50 return "fonts/OpenSans-BoldItalic.ttf"; |
| 43 } | 51 } |
| 44 } | 52 } |
| 45 | 53 |
| 46 void asc_font(enum AscFontStyle style, int size) { | 54 struct asc_font_cache_entry { |
| 47 for (unsigned int i = 0 ; i < asc_context.fonts_loaded ; i++) { | 55 AscFont font; |
| 48 AscFont *font = &asc_context.fonts[i]; | 56 TTF_Font *ttf; |
| 49 if (font->size == size && font->style == style) { | 57 }; |
| 50 asc_context.active_font = i; | 58 |
| 51 return; | 59 static CxList *asc_font_cache; |
| 60 | |
| 61 static void asc_font_unload(struct asc_font_cache_entry *entry) { | |
| 62 TTF_CloseFont(entry->ttf); | |
| 63 asc_dprintf("Closed font size %u, style %u", entry->font.size, entry->font.style); | |
| 64 } | |
| 65 | |
| 66 void asc_font_cache_init(void) { | |
| 67 assert(asc_font_cache == NULL); | |
| 68 asc_font_cache = cxArrayListCreateSimple( | |
| 69 sizeof(struct asc_font_cache_entry), 16 | |
| 70 ); | |
| 71 asc_font_cache->simple_destructor = (cx_destructor_func) asc_font_unload; | |
| 72 } | |
| 73 | |
| 74 void asc_font_cache_destroy(void) { | |
| 75 assert(asc_font_cache != NULL); | |
| 76 cxListDestroy(asc_font_cache); | |
| 77 } | |
| 78 | |
| 79 | |
| 80 TTF_Font *asc_font_load(AscFont font) { | |
| 81 CxIterator iter = cxListIterator(asc_font_cache); | |
| 82 cx_foreach(struct asc_font_cache_entry*, cache, iter) { | |
| 83 if (cache->font.style == font.style && cache->font.size == font.size) { | |
| 84 return cache->ttf; | |
| 52 } | 85 } |
| 53 } | 86 } |
| 54 | 87 |
| 55 if (asc_context.fonts_loaded == ASC_MAX_FONTS) { | 88 struct asc_font_cache_entry entry; |
| 56 asc_error("Too many fonts. Cannot load more until cache is repaired."); | 89 entry.font = font; |
| 57 asc_context.active_font = ASC_MAX_FONTS; | 90 entry.ttf = TTF_OpenFont(asc_font_filename(font.style), font.size); |
| 58 return; | 91 if (entry.ttf == NULL) { |
| 59 } | |
| 60 | |
| 61 unsigned int slot = asc_context.fonts_loaded++; | |
| 62 AscFont *font = &asc_context.fonts[slot]; | |
| 63 font->size = size; | |
| 64 font->style = style; | |
| 65 font->ptr = TTF_OpenFont(asc_font_filename(style), size); | |
| 66 if (font->ptr == NULL) { | |
| 67 asc_context.fonts_loaded--; | |
| 68 asc_error(TTF_GetError()); | 92 asc_error(TTF_GetError()); |
| 93 return NULL; | |
| 69 } else { | 94 } else { |
| 70 asc_dprintf("Loaded font size %u, style %u in slot %u", size, style, slot); | 95 cxListAdd(asc_font_cache, &entry); |
| 71 asc_context.active_font = slot; | 96 asc_dprintf("Loaded font size %d, style %d from disk", font.size, font.style); |
| 97 return entry.ttf; | |
| 72 } | 98 } |
| 73 } | 99 } |
