source/libs/poppler/poppler-src/poppler/CairoFontEngine.h

   1 //========================================================================
   2 //
   3 // CairoFontEngine.h
   4 //
   5 // Copyright 2003 Glyph & Cog, LLC
   6 // Copyright 2004 Red Hat, Inc
   7 //
   8 //========================================================================
   9
  10 //========================================================================
  11 //
  12 // Modified under the Poppler project - http://poppler.freedesktop.org
  13 //
  14 // All changes made under the Poppler project to this file are licensed
  15 // under GPL version 2 or later
  16 //
  17 // Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
  18 // Copyright (C) 2005 Albert Astals Cid <aacid@kde.org>
  19 // Copyright (C) 2006, 2007 Jeff Muizelaar <jeff@infidigm.net>
  20 // Copyright (C) 2006, 2010 Carlos Garcia Campos <carlosgc@gnome.org>
  21 // Copyright (C) 2008 Adrian Johnson <ajohnson@redneon.com>
  22 // Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
  23 //
  24 // To see a description of the changes please see the Changelog file that
  25 // came with your tarball or type make ChangeLog if you are building from git
  26 //
  27 //========================================================================
  28
  29 #ifndef CAIROFONTENGINE_H
  30 #define CAIROFONTENGINE_H
  31
  32 #ifdef USE_GCC_PRAGMAS
  33 #pragma interface
  34 #endif
  35
  36 #include "poppler-config.h"
  37 #include "goo/gtypes.h"
  38 #include <cairo-ft.h>
  39
  40 #include "GfxFont.h"
  41 #include "PDFDoc.h"
  42
  43 class CairoFontEngine;
  44
  45 class CairoFont {
  46 public:
  47   CairoFont(Ref ref,
  48             cairo_font_face_t *face,
  49             int *codeToGID,
  50             Guint codeToGIDLen,
  51             GBool substitute,
  52             GBool printing);
  53   virtual ~CairoFont();
  54
  55   virtual GBool matches(Ref &other, GBool printing);
  56   cairo_font_face_t *getFontFace(void);
  57   unsigned long getGlyph(CharCode code, Unicode *u, int uLen);
  58   double getSubstitutionCorrection(GfxFont *gfxFont);
  59
  60   GBool isSubstitute() { return substitute; }
  61 protected:
  62   Ref ref;
  63   cairo_font_face_t *cairo_font_face;
  64
  65   int *codeToGID;
  66   Guint codeToGIDLen;
  67
  68   GBool substitute;
  69   GBool printing;
  70 };
  71
  72 //------------------------------------------------------------------------
  73
  74 class CairoFreeTypeFont : public CairoFont {
  75 public:
  76   static CairoFreeTypeFont *create(GfxFont *gfxFont, XRef *xref, FT_Library lib, GBool useCIDs);
  77   virtual ~CairoFreeTypeFont();
  78
  79 private:
  80   CairoFreeTypeFont(Ref ref, cairo_font_face_t *cairo_font_face,
  81             int *codeToGID, Guint codeToGIDLen, GBool substitute);
  82 };
  83
  84 //------------------------------------------------------------------------
  85
  86 class CairoType3Font : public CairoFont {
  87 public:
  88   static CairoType3Font *create(GfxFont *gfxFont, PDFDoc *doc,
  89                                 CairoFontEngine *fontEngine,
  90                                 GBool printing, XRef *xref);
  91   virtual ~CairoType3Font();
  92
  93   virtual GBool matches(Ref &other, GBool printing);
  94
  95 private:
  96   CairoType3Font(Ref ref, PDFDoc *doc,
  97                  cairo_font_face_t *cairo_font_face,
  98                  int *codeToGID, Guint codeToGIDLen,
  99                  GBool printing, XRef *xref);
 100   PDFDoc *doc;
 101 };
 102
 103 //------------------------------------------------------------------------
 104
 105 #define cairoFontCacheSize 64
 106
 107 //------------------------------------------------------------------------
 108 // CairoFontEngine
 109 //------------------------------------------------------------------------
 110
 111 class CairoFontEngine {
 112 public:
 113
 114   // Create a font engine.
 115   CairoFontEngine(FT_Library libA);
 116   ~CairoFontEngine();
 117
 118   CairoFont *getFont(GfxFont *gfxFont, PDFDoc *doc, GBool printing, XRef *xref);
 119
 120 private:
 121   CairoFont *fontCache[cairoFontCacheSize];
 122   FT_Library lib;
 123   GBool useCIDs;
 124 #if MULTITHREADED
 125   GooMutex mutex;
 126 #endif
 127 };
 128
 129 #endif