Panda3D
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00001 // Filename: textFont.h 00002 // Created by: drose (08Feb02) 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 TEXTFONT_H 00016 #define TEXTFONT_H 00017 00018 #include "pandabase.h" 00019 00020 #include "textGlyph.h" 00021 #include "typedReferenceCount.h" 00022 #include "namable.h" 00023 #include "pmap.h" 00024 #include "pointerTo.h" 00025 00026 //////////////////////////////////////////////////////////////////// 00027 // Class : TextFont 00028 // Description : An encapsulation of a font; i.e. a set of glyphs that 00029 // may be assembled together by a TextNode to represent 00030 // a string of text. 00031 // 00032 // This is just an abstract interface; see 00033 // StaticTextFont or DynamicTextFont for an actual 00034 // implementation. 00035 //////////////////////////////////////////////////////////////////// 00036 class EXPCL_PANDA_TEXT TextFont : public TypedReferenceCount, public Namable { 00037 public: 00038 TextFont(); 00039 TextFont(const TextFont ©); 00040 00041 PUBLISHED: 00042 virtual ~TextFont(); 00043 00044 enum RenderMode { 00045 // Each glyph is a single textured rectangle 00046 RM_texture, 00047 00048 // Each glyph is a lot of line segments 00049 RM_wireframe, 00050 00051 // Each glyph is a lot of triangles 00052 RM_polygon, 00053 00054 // a 3-D outline, like a cookie cutter 00055 RM_extruded, 00056 00057 // combination of RM_extruded and RM_polygon 00058 RM_solid, 00059 00060 // Returned by string_render_mode() for an invalid match. 00061 RM_invalid, 00062 }; 00063 00064 enum WindingOrder { 00065 WO_default, 00066 WO_left, 00067 WO_right, 00068 00069 WO_invalid, 00070 }; 00071 00072 virtual PT(TextFont) make_copy() const=0; 00073 00074 INLINE bool is_valid() const; 00075 INLINE operator bool () const; 00076 INLINE PN_stdfloat get_line_height() const; 00077 INLINE void set_line_height(PN_stdfloat line_height); 00078 00079 INLINE PN_stdfloat get_space_advance() const; 00080 INLINE void set_space_advance(PN_stdfloat space_advance); 00081 00082 virtual void write(ostream &out, int indent_level) const; 00083 00084 public: 00085 virtual bool get_glyph(int character, const TextGlyph *&glyph)=0; 00086 TextGlyph *get_invalid_glyph(); 00087 00088 static RenderMode string_render_mode(const string &string); 00089 static WindingOrder string_winding_order(const string &string); 00090 00091 private: 00092 void make_invalid_glyph(); 00093 00094 protected: 00095 bool _is_valid; 00096 PN_stdfloat _line_height; 00097 PN_stdfloat _space_advance; 00098 PT(TextGlyph) _invalid_glyph; 00099 00100 public: 00101 static TypeHandle get_class_type() { 00102 return _type_handle; 00103 } 00104 static void init_type() { 00105 TypedReferenceCount::init_type(); 00106 register_type(_type_handle, "TextFont", 00107 TypedReferenceCount::get_class_type()); 00108 } 00109 virtual TypeHandle get_type() const { 00110 return get_class_type(); 00111 } 00112 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00113 00114 private: 00115 static TypeHandle _type_handle; 00116 }; 00117 00118 EXPCL_PANDA_TEXT ostream &operator << (ostream &out, TextFont::RenderMode rm); 00119 EXPCL_PANDA_TEXT istream &operator >> (istream &in, TextFont::RenderMode &rm); 00120 EXPCL_PANDA_TEXT ostream &operator << (ostream &out, TextFont::WindingOrder wo); 00121 EXPCL_PANDA_TEXT istream &operator >> (istream &in, TextFont::WindingOrder &wo); 00122 00123 #include "textFont.I" 00124 00125 #endif