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//========================================================================
//
// FTFont.h
//
// An X wrapper for the FreeType font rasterizer.
//
// Copyright 2001-2003 Glyph & Cog, LLC
//
//========================================================================
#ifndef FTFONT_H
#define FTFONT_H
#include <aconf.h>
#if FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include <freetype/freetype.h>
#include "CharTypes.h"
#include "SFont.h"
//------------------------------------------------------------------------
class FTFontEngine: public SFontEngine {
public:
FTFontEngine(Display *displayA, Visual *visualA, int depthA,
Colormap colormapA, GBool aaA);
GBool isOk() { return ok; }
virtual ~FTFontEngine();
private:
FT_Library lib;
GBool aa;
Gulong palette[5];
GBool ok;
friend class FTFontFile;
friend class FTFont;
};
//------------------------------------------------------------------------
enum FTFontIndexMode {
ftFontModeUnicode,
ftFontModeCharCode,
ftFontModeCharCodeOffset,
ftFontModeCodeMap,
ftFontModeCodeMapDirect,
ftFontModeCIDToGIDMap,
ftFontModeCFFCharset,
ftFontModeCID
};
class FTFontFile: public SFontFile {
public:
// 8-bit font, TrueType or Type 1/1C
FTFontFile(FTFontEngine *engineA, char *fontFileName,
char **fontEnc, GBool pdfFontHasEncoding,
GBool pdfFontIsSymbolic);
// CID font, TrueType
FTFontFile(FTFontEngine *engineA, char *fontFileName,
Gushort *cidToGIDA, int cidToGIDLenA, GBool embedded);
// CID font, Type 0C (CFF)
FTFontFile(FTFontEngine *engineA, char *fontFileName,
GBool embedded);
GBool isOk() { return ok; }
virtual ~FTFontFile();
private:
FTFontEngine *engine;
FT_Face face;
FTFontIndexMode mode;
int charMapOffset;
Guint *codeMap;
Gushort *cidToGID;
int cidToGIDLen;
GBool ok;
friend class FTFont;
};
//------------------------------------------------------------------------
struct FTFontCacheTag {
Gushort code;
Gushort mru; // valid bit (0x8000) and MRU index
int x, y, w, h; // offset and size of glyph
};
class FTFont: public SFont {
public:
FTFont(FTFontFile *fontFileA, double *m);
GBool isOk() { return ok; }
virtual ~FTFont();
virtual GBool drawChar(Drawable d, int w, int h, GC gc,
int x, int y, int r, int g, int b,
CharCode c, Unicode u);
virtual GBool getCharPath(CharCode c, Unicode u, GfxState *state);
private:
Guchar *getGlyphPixmap(CharCode c, Unicode u,
int *x, int *y, int *w, int *h,
GBool *tempBitmap);
static int charPathMoveTo(FT_Vector *pt, void *state);
static int charPathLineTo(FT_Vector *pt, void *state);
static int charPathConicTo(FT_Vector *ctrl, FT_Vector *pt, void *state);
static int charPathCubicTo(FT_Vector *ctrl1, FT_Vector *ctrl2,
FT_Vector *pt, void *state);
FT_UInt getGlyphIndex(CharCode c, Unicode u);
FTFontFile *fontFile;
FT_Size sizeObj;
XImage *image;
FT_Matrix matrix;
int glyphW, glyphH; // size of glyph pixmaps
int glyphSize; // size of glyph pixmaps, in bytes
Guchar *cache; // glyph pixmap cache
FTFontCacheTag *cacheTags; // cache tags, i.e., char codes
int cacheSets; // number of sets in cache
int cacheAssoc; // cache associativity (glyphs per set)
GBool ok;
};
#endif // FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
#endif
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