/* $Id$ */ /* * This file is part of OpenTTD. * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. */ /** @file fontcache.h Functions to read fonts from files and cache them. */ #ifndef FONTCACHE_H #define FONTCACHE_H #include "spritecache.h" /** Get the SpriteID mapped to the given font size and key */ SpriteID GetUnicodeGlyph(FontSize size, uint32 key); /** Map a SpriteID to the font size and key */ void SetUnicodeGlyph(FontSize size, uint32 key, SpriteID sprite); /** Initialize the glyph map */ void InitializeUnicodeGlyphMap(); void ResetFontSizes(); #ifdef WITH_FREETYPE struct FreeTypeSettings { char small_font[MAX_PATH]; char medium_font[MAX_PATH]; char large_font[MAX_PATH]; uint small_size; uint medium_size; uint large_size; bool small_aa; bool medium_aa; bool large_aa; }; extern FreeTypeSettings _freetype; void InitFreeType(); void UninitFreeType(); const Sprite *GetGlyph(FontSize size, uint32 key); uint GetGlyphWidth(FontSize size, uint32 key); typedef bool (SetFallbackFontCallback)(const char **); /** * We would like to have a fallback font as the current one * doesn't contain all characters we need. * This function must set all fonts of settings. * @param settings the settings to overwrite the fontname of. * @param language_isocode the language, e.g. en_GB. * @param winlangid the language ID windows style. * @param callback The function to call to check for missing glyphs. * @return true if a font has been set, false otherwise. */ bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid, SetFallbackFontCallback *callback); #else /* Stub for initializiation */ static inline void InitFreeType() { ResetFontSizes(); } static inline void UninitFreeType() { ResetFontSizes(); } /** Get the Sprite for a glyph */ static inline const Sprite *GetGlyph(FontSize size, uint32 key) { SpriteID sprite = GetUnicodeGlyph(size, key); if (sprite == 0) sprite = GetUnicodeGlyph(size, '?'); return GetSprite(sprite, ST_FONT); } /** Get the width of a glyph */ static inline uint GetGlyphWidth(FontSize size, uint32 key) { SpriteID sprite = GetUnicodeGlyph(size, key); if (sprite == 0) sprite = GetUnicodeGlyph(size, '?'); return SpriteExists(sprite) ? GetSprite(sprite, ST_FONT)->width + (size != FS_NORMAL) : 0; } #endif /* WITH_FREETYPE */ #endif /* FONTCACHE_H */