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//========================================================================
//
// SplashFontEngine.h
//
// Copyright 2003-2013 Glyph & Cog, LLC
//
//========================================================================
#ifndef SPLASHFONTENGINE_H
#define SPLASHFONTENGINE_H
#include <aconf.h>
#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
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