rosapps/smartpdf/poppler/splash/SplashFontEngine.h

   1 //========================================================================
   2 //
   3 // SplashFontEngine.h
   4 //
   5 //========================================================================
   6
   7 #ifndef SPLASHFONTENGINE_H
   8 #define SPLASHFONTENGINE_H
   9
  10 #ifdef USE_GCC_PRAGMAS
  11 #pragma interface
  12 #endif
  13
  14 #include "goo/gtypes.h"
  15
  16 class SplashT1FontEngine;
  17 class SplashFTFontEngine;
  18 class SplashDTFontEngine;
  19 class SplashFontFile;
  20 class SplashFontFileID;
  21 class SplashFont;
  22 class SplashFontSrc;
  23
  24 //------------------------------------------------------------------------
  25
  26 #define splashFontCacheSize 16
  27
  28 //------------------------------------------------------------------------
  29 // SplashFontEngine
  30 //------------------------------------------------------------------------
  31
  32 class SplashFontEngine {
  33 public:
  34
  35   // Create a font engine.
  36   SplashFontEngine(
  37 #if HAVE_T1LIB_H
  38                    GBool enableT1lib,
  39 #endif
  40 #if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
  41                    GBool enableFreeType,
  42 #endif
  43                    GBool aa);
  44
  45   ~SplashFontEngine();
  46
  47   // Get a font file from the cache.  Returns NULL if there is no
  48   // matching entry in the cache.
  49   SplashFontFile *getFontFile(SplashFontFileID *id);
  50
  51   // Load fonts - these create new SplashFontFile objects.
  52   SplashFontFile *loadType1Font(SplashFontFileID *idA, SplashFontSrc *src, char **enc);
  53   SplashFontFile *loadType1CFont(SplashFontFileID *idA, SplashFontSrc *src, char **enc);
  54   SplashFontFile *loadCIDFont(SplashFontFileID *idA, SplashFontSrc *src);
  55   SplashFontFile *loadTrueTypeFont(SplashFontFileID *idA, SplashFontSrc *src,
  56                                    Gushort *codeToGID, int codeToGIDLen,
  57                                    int faceIndex=0);
  58
  59   // Get a font - this does a cache lookup first, and if not found,
  60   // creates a new SplashFont object and adds it to the cache.  The
  61   // matrix:
  62   //    [ mat[0] mat[1] ]
  63   //    [ mat[2] mat[3] ]
  64   // specifies the font transform in PostScript style:
  65   //    [x' y'] = [x y] * mat
  66   // Note that the Splash y axis points downward.
  67   SplashFont *getFont(SplashFontFile *fontFile, SplashCoord *mat);
  68
  69 private:
  70
  71   SplashFont *fontCache[splashFontCacheSize];
  72
  73 #if HAVE_T1LIB_H
  74   SplashT1FontEngine *t1Engine;
  75 #endif
  76 #if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
  77   SplashFTFontEngine *ftEngine;
  78 #endif
  79 };
  80
  81 #endif