Panda3D
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00001 // Filename: dynamicTextPage.h 00002 // Created by: drose (09Feb02) 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 DYNAMICTEXTPAGE_H 00016 #define DYNAMICTEXTPAGE_H 00017 00018 #include "pandabase.h" 00019 00020 #ifdef HAVE_FREETYPE 00021 00022 #include "texture.h" 00023 #include "dynamicTextGlyph.h" 00024 #include "pointerTo.h" 00025 #include "pvector.h" 00026 00027 class DynamicTextFont; 00028 00029 //////////////////////////////////////////////////////////////////// 00030 // Class : DynamicTextPage 00031 // Description : A single "page" of a DynamicTextFont. This is a 00032 // single texture that holds a number of glyphs for 00033 // rendering. The font starts out with one page, and 00034 // will add more as it needs them. 00035 //////////////////////////////////////////////////////////////////// 00036 class EXPCL_PANDA_TEXT DynamicTextPage : public Texture { 00037 public: 00038 DynamicTextPage(DynamicTextFont *font, int page_number); 00039 00040 DynamicTextGlyph *slot_glyph(int character, 00041 int x_size, int y_size, int margin); 00042 00043 INLINE int get_x_size() const; 00044 INLINE int get_y_size() const; 00045 00046 void fill_region(int x, int y, int x_size, int y_size, const LColor &color); 00047 00048 PUBLISHED: 00049 INLINE bool is_empty() const; 00050 00051 private: 00052 int garbage_collect(DynamicTextFont *font); 00053 00054 bool find_hole(int &x, int &y, int x_size, int y_size) const; 00055 DynamicTextGlyph *find_overlap(int x, int y, int x_size, int y_size) const; 00056 00057 typedef pvector< PT(DynamicTextGlyph) > Glyphs; 00058 Glyphs _glyphs; 00059 00060 int _x_size, _y_size; 00061 00062 DynamicTextFont *_font; 00063 00064 public: 00065 static TypeHandle get_class_type() { 00066 return _type_handle; 00067 } 00068 static void init_type() { 00069 Texture::init_type(); 00070 register_type(_type_handle, "DynamicTextPage", 00071 Texture::get_class_type()); 00072 } 00073 virtual TypeHandle get_type() const { 00074 return get_class_type(); 00075 } 00076 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00077 00078 private: 00079 static TypeHandle _type_handle; 00080 00081 friend class DynamicTextFont; 00082 }; 00083 00084 #include "dynamicTextPage.I" 00085 00086 #endif // HAVE_FREETYPE 00087 00088 #endif