Panda3D
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freetypeFace.h
00001 // Filename: freetypeFont.h
00002 // Created by:  gogg (16Nov09)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef FREETYPEFACE_H
00016 #define FREETYPEFACE_H
00017 
00018 #include "pandabase.h"
00019 
00020 #ifdef HAVE_FREETYPE
00021 
00022 #include "typedReferenceCount.h"
00023 #include "namable.h"
00024 #include "pmutex.h"
00025 #include "mutexHolder.h"
00026 
00027 #include <ft2build.h>
00028 #include FT_FREETYPE_H
00029 
00030 ////////////////////////////////////////////////////////////////////
00031 //       Class : FreetypeFont
00032 // Description : This is a reference-counted wrapper for the
00033 //               freetype font face object (FT_Face).
00034 //               It's used by the FreetypeFont class to store a face
00035 //               that can be shared between copied instances.
00036 ////////////////////////////////////////////////////////////////////
00037 class EXPCL_PANDA_PNMTEXT FreetypeFace : public TypedReferenceCount, public Namable {
00038 public:
00039   FreetypeFace();
00040   ~FreetypeFace();
00041 
00042   FT_Face acquire_face(int char_size, int dpi, int pixel_width, int pixel_height);
00043   void release_face(FT_Face face);
00044 
00045   void set_face(FT_Face face);
00046 
00047 private:
00048   static void initialize_ft_library();
00049 
00050 private:
00051   // This is provided as a permanent storage for the raw font data, if
00052   // needed.
00053   string _font_data;
00054 
00055   string _name;
00056   FT_Face _face;
00057   int _char_size;
00058   int _dpi;
00059   int _pixel_width;
00060   int _pixel_height;
00061   Mutex _lock;
00062 
00063   static FT_Library _ft_library;
00064   static bool _ft_initialized;
00065   static bool _ft_ok;
00066 
00067 public:
00068   static TypeHandle get_class_type() {
00069     return _type_handle;
00070   }
00071   static void init_type() {
00072     TypedReferenceCount::init_type();
00073     register_type(_type_handle, "FreetypeFace",
00074                   TypedReferenceCount::get_class_type());
00075   }
00076   virtual TypeHandle get_type() const {
00077     return get_class_type();
00078   }
00079   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00080 
00081 private:
00082   static TypeHandle _type_handle;
00083 
00084   friend class FreetypeFont;
00085 };
00086 
00087 
00088 #include "freetypeFace.I"
00089 
00090 #endif  // HAVE_FREETYPE
00091 
00092 #endif
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