//======================================================================== // // SplashFontEngine.h // // Copyright 2003-2013 Glyph & Cog, LLC // //======================================================================== #ifndef SPLASHFONTENGINE_H #define SPLASHFONTENGINE_H #include #ifdef USE_GCC_PRAGMAS #pragma interface #endif #include "gtypes.h" class GString; class GList; class SplashFTFontEngine; class SplashDTFontEngine; class SplashDT4FontEngine; class SplashFontFile; class SplashFontFileID; class SplashFont; //------------------------------------------------------------------------ #define splashFontCacheSize 16 #if HAVE_FREETYPE_H #define splashFTNoHinting (1 << 0) #endif //------------------------------------------------------------------------ // SplashFontEngine //------------------------------------------------------------------------ class SplashFontEngine { public: // Create a font engine. SplashFontEngine( #if HAVE_FREETYPE_H GBool enableFreeType, Guint freeTypeFlags, #endif GBool aa); ~SplashFontEngine(); // Get a font file from the cache. Returns NULL if there is no // matching entry in the cache. SplashFontFile *getFontFile(SplashFontFileID *id); // Returns true if [id] refers to a bad font file, i.e., if one of // the loadXXXFont functions has returned NULL for that ID. GBool checkForBadFontFile(SplashFontFileID *id); // Load fonts - these create new SplashFontFile objects. SplashFontFile *loadType1Font(SplashFontFileID *idA, #if LOAD_FONTS_FROM_MEM GString *fontBuf, #else char *fileName, GBool deleteFile, #endif const char **enc); SplashFontFile *loadType1CFont(SplashFontFileID *idA, #if LOAD_FONTS_FROM_MEM GString *fontBuf, #else char *fileName, GBool deleteFile, #endif int *codeToGID, const char **enc); SplashFontFile *loadOpenTypeT1CFont(SplashFontFileID *idA, #if LOAD_FONTS_FROM_MEM GString *fontBuf, #else char *fileName, GBool deleteFile, #endif int *codeToGID, const char **enc); SplashFontFile *loadCIDFont(SplashFontFileID *idA, #if LOAD_FONTS_FROM_MEM GString *fontBuf, #else char *fileName, GBool deleteFile, #endif int *codeToGID, int codeToGIDLen); SplashFontFile *loadOpenTypeCFFFont(SplashFontFileID *idA, #if LOAD_FONTS_FROM_MEM GString *fontBuf, #else char *fileName, GBool deleteFile, #endif int *codeToGID, int codeToGIDLen); SplashFontFile *loadTrueTypeFont(SplashFontFileID *idA, #if LOAD_FONTS_FROM_MEM GString *fontBuf, #else char *fileName, GBool deleteFile, #endif int fontNum, int *codeToGID, int codeToGIDLen, char *fontName); // Get a font - this does a cache lookup first, and if not found, // creates a new SplashFont object and adds it to the cache. The // matrix, mat = textMat * ctm: // [ mat[0] mat[1] ] // [ mat[2] mat[3] ] // specifies the font transform in PostScript style: // [x' y'] = [x y] * mat // Note that the Splash y axis points downward. SplashFont *getFont(SplashFontFile *fontFile, SplashCoord *textMat, SplashCoord *ctm); private: SplashFont *fontCache[splashFontCacheSize]; GList *badFontFiles; // [SplashFontFileID] #if HAVE_FREETYPE_H SplashFTFontEngine *ftEngine; #endif }; #endif