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         int n_faces;
  32         double size;
  33         int master;
  34
  35         GlyphInfo glyphs[GLYPH_CACHE_SIZE];
  36         int n_glyphs;
  37
  38         TextFont (FontFace **faces, int n_faces, int master, double size);
  39
  40         GlyphInfo *GetGlyphInfo (FontFace *face, gunichar unichar, guint32 index);
  41         void UpdateFaceExtents ();
  42         void ClearGlyphCache ();
  43
  44  public:
  45         ~TextFont ();
  46
  47         static TextFont *Load (const char *resource, int index, double size, StyleSimulations simulate);
  48         static TextFont *Load (const TextFontDescription *desc);
  49
  50         bool SetStyleSimulations (StyleSimulations simulate);
  51         StyleSimulations GetStyleSimulations ();
  52
  53         bool SetSize (double size);
  54         double GetSize ();
  55
  56         GlyphInfo *GetGlyphInfo (gunichar unichar);
  57         GlyphInfo *GetGlyphInfoByIndex (guint32 index);
  58
  59         double Kerning (GlyphInfo *left, GlyphInfo *right);
  60         double Descender ();
  61         double Ascender ();
  62         double Height ();
  63
  64         double UnderlinePosition ();
  65         double UnderlineThickness ();
  66
  67         void Path (cairo_t *cr, GlyphInfo *glyph, double x, double y);
  68         void Path (cairo_t *cr, gunichar unichar, double x, double y);
  69
  70         void AppendPath (moon_path *path, GlyphInfo *glyph, double x, double y);
  71         void AppendPath (moon_path *path, gunichar unichar, double x, double y);
  72 };
  73
  74
  75 class TextFontDescription {
  76         TextFont *font;
  77         bool changed;
  78
  79         char *source;
  80         char *family;
  81         char *language;
  82         FontStretches stretch;
  83         FontWeights weight;
  84         FontStyles style;
  85         double size;
  86
  87  public:
  88         TextFontDescription ();
  89         ~TextFontDescription ();
  90
  91         TextFont *GetFont ();
  92         void Reload ();
  93
  94         bool SetSource (const char *source);
  95         const char *GetSource () const;
  96
  97         bool SetFamily (const char *family);
  98         const char *GetFamily () const;
  99         char **GetFamilies () const;
 100
 101         bool SetLanguage (const char *lang);
 102         const char *GetLanguage () const;
 103
 104         bool SetStretch (FontStretches stretch);
 105         FontStretches GetStretch () const;
 106
 107         bool SetWeight (FontWeights weight);
 108         FontWeights GetWeight () const;
 109
 110         bool SetStyle (FontStyles style);
 111         FontStyles GetStyle () const;
 112
 113         bool SetSize (double size);
 114         double GetSize () const;
 115 };
 116
 117 #endif /* __FONTS_H__ */