src/fonts.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * fonts.h:
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2009 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  */
  12
  13 #ifndef __FONTS_H__
  14 #define __FONTS_H__
  15
  16 #include <glib.h>
  17 #include <cairo.h>
  18
  19 #include "fontmanager.h"
  20 #include "enums.h"
  21
  22 #define GLYPH_CACHE_SIZE 256
  23
  24 class TextFontDescription;
  25
  26 class TextFont {
  27         const TextFontDescription *desc;
  28         StyleSimulations simulate;
  29         FontFaceExtents extents;
  30         FontFace **faces;
  31         bool gapless;
  32         int n_faces;
  33         double size;
  34         int master;
  35
  36         GlyphInfo glyphs[GLYPH_CACHE_SIZE];
  37         int n_glyphs;
  38
  39         TextFont (FontFace **faces, int n_faces, int master, bool gapless, double size);
  40
  41         GlyphInfo *GetGlyphInfo (FontFace *face, gunichar unichar, guint32 index);
  42         void UpdateFaceExtents ();
  43         void ClearGlyphCache ();
  44
  45  public:
  46         ~TextFont ();
  47
  48         static TextFont *Load (const char *resource, int index, double size, StyleSimulations simulate);
  49         static TextFont *Load (const TextFontDescription *desc);
  50
  51         bool SetStyleSimulations (StyleSimulations simulate);
  52         StyleSimulations GetStyleSimulations () const;
  53
  54         bool SetSize (double size);
  55         double GetSize () const;
  56
  57         GlyphInfo *GetGlyphInfo (gunichar unichar);
  58         GlyphInfo *GetGlyphInfoByIndex (guint32 index);
  59
  60         double Kerning (GlyphInfo *left, GlyphInfo *right);
  61         double Descender () const;
  62         double Ascender () const;
  63         double Height () const;
  64
  65         double UnderlinePosition () const;
  66         double UnderlineThickness () const;
  67
  68         void Path (cairo_t *cr, GlyphInfo *glyph, double x, double y);
  69         void Path (cairo_t *cr, gunichar unichar, double x, double y);
  70
  71         void AppendPath (moon_path *path, GlyphInfo *glyph, double x, double y);
  72         void AppendPath (moon_path *path, gunichar unichar, double x, double y);
  73 };
  74
  75
  76 class TextFontDescription {
  77         TextFont *font;
  78         bool changed;
  79
  80         char *source;
  81         char *family;
  82         char *language;
  83         FontStretches stretch;
  84         FontWeights weight;
  85         FontStyles style;
  86         double size;
  87
  88  public:
  89         TextFontDescription ();
  90         ~TextFontDescription ();
  91
  92         TextFont *GetFont ();
  93         void Reload ();
  94
  95         bool SetSource (const char *source);
  96         const char *GetSource () const;
  97
  98         bool SetFamily (const char *family);
  99         const char *GetFamily () const;
 100         char **GetFamilies () const;
 101
 102         bool SetLanguage (const char *lang);
 103         const char *GetLanguage () const;
 104
 105         bool SetStretch (FontStretches stretch);
 106         FontStretches GetStretch () const;
 107
 108         bool SetWeight (FontWeights weight);
 109         FontWeights GetWeight () const;
 110
 111         bool SetStyle (FontStyles style);
 112         FontStyles GetStyle () const;
 113
 114         bool SetSize (double size);
 115         double GetSize () const;
 116 };
 117
 118 #endif /* __FONTS_H__ */