universe@11: /*
universe@11:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@11:  * Copyright 2023 Mike Becker. All rights reserved.
universe@11:  *
universe@11:  * Redistribution and use in source and binary forms, with or without
universe@11:  * modification, are permitted provided that the following conditions are met:
universe@11:  *
universe@11:  *   1. Redistributions of source code must retain the above copyright
universe@11:  *      notice, this list of conditions and the following disclaimer.
universe@11:  *
universe@11:  *   2. Redistributions in binary form must reproduce the above copyright
universe@11:  *      notice, this list of conditions and the following disclaimer in the
universe@11:  *      documentation and/or other materials provided with the distribution.
universe@11:  *
universe@11:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@11:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@11:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@11:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@11:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@11:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@11:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@11:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@11:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@11:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@11:  * POSSIBILITY OF SUCH DAMAGE.
universe@11:  */
universe@11: 
universe@48: #include "ascension/ui/font.h"
universe@11: #include "ascension/context.h"
universe@11: #include "ascension/error.h"
universe@11: 
universe@66: #include <assert.h>
universe@66: #include <cx/array_list.h>
universe@66: 
universe@66: void asc_font(enum AscFontStyle style, int size) {
universe@66:     asc_context.active_font.style = style;
universe@66:     asc_context.active_font.size = size;
universe@66: }
universe@66: 
universe@11: static char const *asc_font_filename(enum AscFontStyle style) {
universe@11:     // TODO: do not assume we are running from the program dir
universe@11:     switch (style) {
universe@11:         case ASC_FONT_REGULAR:
universe@11:             return "fonts/OpenSans-Regular.ttf";
universe@11:         case ASC_FONT_BOLD:
universe@11:             return "fonts/OpenSans-Bold.ttf";
universe@11:         case ASC_FONT_ITALIC:
universe@11:             return "fonts/OpenSans-Italic.ttf";
universe@11:         case ASC_FONT_BOLD_ITALIC:
universe@11:             return "fonts/OpenSans-BoldItalic.ttf";
universe@11:     }
universe@11: }
universe@11: 
universe@66: struct asc_font_cache_entry {
universe@66:     AscFont font;
universe@66:     TTF_Font *ttf;
universe@66: };
universe@66: 
universe@66: static CxList *asc_font_cache;
universe@66: 
universe@66: static void asc_font_unload(struct asc_font_cache_entry *entry) {
universe@66:     TTF_CloseFont(entry->ttf);
universe@66:     asc_dprintf("Closed font size %u, style %u", entry->font.size, entry->font.style);
universe@66: }
universe@66: 
universe@66: void asc_font_cache_init(void) {
universe@66:     assert(asc_font_cache == NULL);
universe@66:     asc_font_cache = cxArrayListCreateSimple(
universe@66:             sizeof(struct asc_font_cache_entry), 16
universe@66:     );
universe@66:     asc_font_cache->simple_destructor = (cx_destructor_func) asc_font_unload;
universe@66: }
universe@66: 
universe@66: void asc_font_cache_destroy(void) {
universe@66:     assert(asc_font_cache != NULL);
universe@66:     cxListDestroy(asc_font_cache);
universe@66: }
universe@66: 
universe@66: 
universe@66: TTF_Font *asc_font_load(AscFont font) {
universe@66:     CxIterator iter = cxListIterator(asc_font_cache);
universe@66:     cx_foreach(struct asc_font_cache_entry*, cache, iter) {
universe@66:         if (cache->font.style == font.style && cache->font.size == font.size) {
universe@66:             return cache->ttf;
universe@11:         }
universe@11:     }
universe@11: 
universe@66:     struct asc_font_cache_entry entry;
universe@66:     entry.font = font;
universe@66:     entry.ttf = TTF_OpenFont(asc_font_filename(font.style), font.size);
universe@66:     if (entry.ttf == NULL) {
universe@11:         asc_error(TTF_GetError());
universe@66:         return NULL;
universe@65:     } else {
universe@66:         cxListAdd(asc_font_cache, &entry);
universe@66:         asc_dprintf("Loaded font size %d, style %d from disk", font.size, font.style);
universe@66:         return entry.ttf;
universe@11:     }
universe@11: }