T1Font.h

//========================================================================
//
// T1Font.h
//
// An X wrapper for the t1lib Type 1 font rasterizer.
//
// Copyright 2001-2002 Glyph & Cog, LLC
//
//========================================================================
 
#ifndef T1FONT_H
#define T1FONT_H
 
#include <aconf.h>
 
#if HAVE_T1LIB_H
 
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
 
#include <X11/Xlib.h>
#include <t1lib.h>
#include "SFont.h"
 
class GfxState;
 
//------------------------------------------------------------------------
 
class T1FontEngine: public SFontEngine {
public:
 
  T1FontEngine(Display *displayA, Visual *visualA, int depthA,
           Colormap colormapA, GBool aaA, GBool aaHighA);
  GBool isOk() { return ok; }
  virtual ~T1FontEngine();
 
private:
 
  GBool aa;         // use anti-aliasing?
  GBool aaHigh;         // use high-res anti-aliasing?
  GBool ok;
 
  static int t1libInitCount;
 
  friend class T1FontFile;
  friend class T1Font;
};
 
//------------------------------------------------------------------------
 
class T1FontFile: public SFontFile {
public:
 
  T1FontFile(T1FontEngine *engineA, char *fontFileName,
         char **fontEnc, double *bboxA);
  GBool isOk() { return ok; }
  virtual ~T1FontFile();
 
private:
 
  T1FontEngine *engine;
  int id;           // t1lib font ID
  char **enc;
  char *encStr;
  double bbox[4];
  GBool ok;
 
  friend class T1Font;
};
 
//------------------------------------------------------------------------
 
struct T1FontCacheTag {
  Gushort code;
  Gushort mru;          // valid bit (0x8000) and MRU index
  int x, y, w, h;       // offset and size of glyph
};
 
class T1Font: public SFont {
public:
 
  T1Font(T1FontFile *fontFileA, double *m);
  GBool isOk() { return ok; }
  virtual ~T1Font();
  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, int *x, int *y, int *w, int *h);
 
  T1FontFile *fontFile;
  int id;
  float size;
  XImage *image;
  int glyphW, glyphH;       // size of glyph pixmaps
  int glyphSize;        // size of glyph pixmaps, in bytes
  Guchar *cache;        // glyph pixmap cache
  T1FontCacheTag *cacheTags;    // cache tags, i.e., char codes
  int cacheSets;        // number of sets in cache
  int cacheAssoc;       // cache associativity (glyphs per set)
  GBool ok;
};
 
#endif // HAVE_T1LIB_H
 
#endif