include/wx/mgl/fontutil.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/mgl/fontutil.h
   3 // Purpose:     font-related helper functions for MGL
   4 // Author:      Vaclav Slavik
   5 // Created:     2001/05/01
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
   8 // Licence:     wxWindows license
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_MGL_FONTUTIL_H_
  12 #define _WX_MGL_FONTUTIL_H_
  13
  14 #include "wx/list.h"
  15
  16 struct font_info_t;
  17 struct font_lib_t;
  18 struct font_t;
  19
  20 class wxMGLFontInstance;
  21 class wxMGLFontInstanceList;
  22 class wxMGLFontLibrary;
  23 class wxMGLFontFamily;
  24
  25 enum
  26 {
  27     wxFONTFACE_REGULAR     = 0,
  28     wxFONTFACE_ITALIC      = 1,
  29     wxFONTFACE_BOLD        = 2, // = (regular | bold)
  30     wxFONTFACE_BOLD_ITALIC = 3, // = (italic | bold)
  31
  32     wxFONTFACE_MAX
  33 };
  34
  35 // structure representing particular loaded font instance:
  36 class wxMGLFontInstance
  37 {
  38 public:
  39     wxMGLFontInstance(wxMGLFontLibrary *fontLib, float pt, bool slant, bool aa);
  40     ~wxMGLFontInstance();
  41
  42     struct font_t *GetMGLfont_t() const { return m_font; }
  43
  44     float GetPt() const { return m_pt; }
  45     bool GetSlant() const { return m_slant; }
  46     bool GetAA() const { return m_aa; }
  47
  48 private:
  49     wxMGLFontLibrary *m_fontLib;
  50     font_t *m_font;
  51     float m_pt;
  52     bool m_slant;
  53     bool m_aa;
  54 };
  55
  56 // structure representing loaded font library:
  57 class wxMGLFontLibrary
  58 {
  59 public:
  60     wxMGLFontLibrary(const wxString& filename, int type, wxMGLFontFamily *parentFamily);
  61     ~wxMGLFontLibrary();
  62
  63     wxMGLFontInstance *GetFontInstance(wxFont *font, float scale, bool aa);
  64     wxMGLFontFamily *GetFamily() const { return m_family; }
  65
  66     void IncRef();
  67     void DecRef();
  68
  69     struct font_lib_t *GetMGLfont_lib_t() const { return m_fontLib; }
  70
  71 private:
  72     font_lib_t *m_fontLib;
  73     int m_type;
  74     wxString m_fileName;
  75     size_t m_refs;
  76     wxMGLFontInstanceList *m_instances;
  77     wxMGLFontFamily *m_family;
  78 };
  79
  80 // structure representing native MGL font family
  81 class wxMGLFontFamily : public wxObject
  82 {
  83 public:
  84     wxMGLFontFamily(const font_info_t *info);
  85     virtual ~wxMGLFontFamily();
  86
  87     wxString GetName() const { return m_name; }
  88     const font_info_t *GetInfo() const { return m_fontInfo; }
  89
  90     bool HasFace(int type) const;
  91     wxMGLFontLibrary *GetLibrary(int type) const
  92             { return m_fontLibs[type]; }
  93
  94 private:
  95     wxString m_name;
  96     const font_info_t *m_fontInfo;
  97     wxMGLFontLibrary *m_fontLibs[wxFONTFACE_MAX];
  98 };
  99
 100 WX_DECLARE_LIST(wxMGLFontFamily, wxMGLFontFamilyList);
 101
 102 class wxFontsManager
 103 {
 104     public:
 105         wxFontsManager();
 106         ~wxFontsManager();
 107
 108         void AddFamily(const font_info_t *info);
 109
 110         // return info about font with given name:
 111         wxMGLFontFamily *GetFamily(const wxString& name) const;
 112         // return list of all families
 113         wxMGLFontFamilyList *GetFamilyList() { return m_list; }
 114
 115         wxMGLFontLibrary *GetFontLibrary(wxFont *font);
 116
 117     private:
 118         wxHashTable *m_hash;
 119         wxMGLFontFamilyList *m_list;
 120 };
 121
 122 extern wxFontsManager *wxTheFontsManager;
 123
 124 #endif // _WX_MGL_FONTUTIL_H_