Panda3D
freetypeFace.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file freetypeFace.h
10  * @author gogg
11  * @date 2009-11-16
12  */
13 
14 #ifndef FREETYPEFACE_H
15 #define FREETYPEFACE_H
16 
17 #include "pandabase.h"
18 
19 #ifdef HAVE_FREETYPE
20 
21 #include "typedReferenceCount.h"
22 #include "namable.h"
23 #include "pmutex.h"
24 #include "mutexHolder.h"
25 
26 #include <ft2build.h>
27 #include FT_FREETYPE_H
28 
29 /**
30  * This is a reference-counted wrapper for the freetype font face object
31  * (FT_Face). It's used by the FreetypeFont class to store a face that can be
32  * shared between copied instances.
33  */
34 class EXPCL_PANDA_PNMTEXT FreetypeFace : public TypedReferenceCount, public Namable {
35 public:
36  FreetypeFace();
37  ~FreetypeFace();
38 
39  FT_Face acquire_face(int char_size, int dpi, int pixel_width, int pixel_height);
40  void release_face(FT_Face face);
41 
42  void set_face(FT_Face face);
43 
44 private:
45  static void initialize_ft_library();
46 
47 private:
48  // This is provided as a permanent storage for the raw font data, if needed.
49  std::string _font_data;
50 
51  std::string _name;
52  FT_Face _face;
53  int _char_size;
54  int _dpi;
55  int _pixel_width;
56  int _pixel_height;
57  Mutex _lock;
58 
59  static FT_Library _ft_library;
60  static bool _ft_initialized;
61  static bool _ft_ok;
62 
63 public:
64  static TypeHandle get_class_type() {
65  return _type_handle;
66  }
67  static void init_type() {
68  TypedReferenceCount::init_type();
69  register_type(_type_handle, "FreetypeFace",
70  TypedReferenceCount::get_class_type());
71  }
72  virtual TypeHandle get_type() const {
73  return get_class_type();
74  }
75  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
76 
77 private:
78  static TypeHandle _type_handle;
79 
80  friend class FreetypeFont;
81 };
82 
83 
84 #include "freetypeFace.I"
85 
86 #endif // HAVE_FREETYPE
87 
88 #endif
freetypeFace.I
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandabase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22
TypedReferenceCount
A base class for things which need to inherit from both TypedObject and from ReferenceCount.
Definition: typedReferenceCount.h:31
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
namable.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
Mutex
A standard mutex, or mutual exclusion lock.
Definition: pmutex.h:38
pmutex.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
mutexHolder.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
Namable
A base class for all things which can have a name.
Definition: namable.h:26
typedReferenceCount.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.