pdftops/T1Font.h

   1 //========================================================================
   2 //
   3 // T1Font.h
   4 //
   5 // An X wrapper for the t1lib Type 1 font rasterizer.
   6 //
   7 //========================================================================
   8
   9 #ifndef T1FONT_H
  10 #define T1FONT_H
  11
  12 #if HAVE_T1LIB_H
  13
  14 #ifdef __GNUC__
  15 #pragma interface
  16 #endif
  17
  18 #include <X11/Xlib.h>
  19 #include <t1lib.h>
  20 #include "SFont.h"
  21
  22 class FontEncoding;
  23
  24 //------------------------------------------------------------------------
  25
  26 class T1FontEngine: public SFontEngine {
  27 public:
  28
  29   T1FontEngine(Display *displayA, Visual *visualA, int depthA,
  30                Colormap colormapA, GBool aaA, GBool aaHighA);
  31   GBool isOk() { return ok; }
  32   virtual ~T1FontEngine();
  33
  34 private:
  35
  36   GBool aa;                     // use anti-aliasing?
  37   GBool aaHigh;                 // use high-res anti-aliasing?
  38   GBool ok;
  39
  40   friend class T1FontFile;
  41   friend class T1Font;
  42 };
  43
  44 //------------------------------------------------------------------------
  45
  46 class T1FontFile: public SFontFile {
  47 public:
  48
  49   T1FontFile(T1FontEngine *engineA, char *fontFileName,
  50              FontEncoding *fontEnc, double *bboxA);
  51   GBool isOk() { return ok; }
  52   virtual ~T1FontFile();
  53
  54 private:
  55
  56   T1FontEngine *engine;
  57   int id;                       // t1lib font ID
  58   char **enc;
  59   char *encStr;
  60   double bbox[4];
  61   GBool ok;
  62
  63   friend class T1Font;
  64 };
  65
  66 //------------------------------------------------------------------------
  67
  68 struct T1FontCacheTag {
  69   Gushort code;
  70   Gushort mru;                  // valid bit (0x8000) and MRU index
  71   int x, y, w, h;               // offset and size of glyph
  72 };
  73
  74 class T1Font: public SFont {
  75 public:
  76
  77   T1Font(T1FontFile *fontFileA, double *m);
  78   GBool isOk() { return ok; }
  79   virtual ~T1Font();
  80   virtual GBool drawChar(Drawable d, int w, int h, GC gc,
  81                          int x, int y, int r, int g, int b, Gushort c);
  82
  83 private:
  84
  85   Guchar *getGlyphPixmap(Gushort c, int *x, int *y, int *w, int *h);
  86
  87   T1FontFile *fontFile;
  88   int id;
  89   float size;
  90   XImage *image;
  91   int glyphW, glyphH;           // size of glyph pixmaps
  92   int glyphSize;                // size of glyph pixmaps, in bytes
  93   Guchar *cache;                // glyph pixmap cache
  94   T1FontCacheTag *cacheTags;    // cache tags, i.e., char codes
  95   int cacheSets;                // number of sets in cache
  96   int cacheAssoc;               // cache associativity (glyphs per set)
  97   GBool ok;
  98 };
  99
 100 #endif // HAVE_T1LIB_H
 101
 102 #endif