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00015 #ifndef DYNAMICTEXTFONT_H
00016 #define DYNAMICTEXTFONT_H
00017
00018 #include "pandabase.h"
00019
00020 #ifdef HAVE_FREETYPE
00021
00022 #include "textFont.h"
00023 #include "freetypeFont.h"
00024 #include "dynamicTextGlyph.h"
00025 #include "dynamicTextPage.h"
00026 #include "filename.h"
00027 #include "pvector.h"
00028 #include "pmap.h"
00029
00030 #include <ft2build.h>
00031 #include FT_FREETYPE_H
00032
00033 class NurbsCurveResult;
00034
00035
00036
00037
00038
00039
00040
00041
00042
00043 class EXPCL_PANDA_TEXT DynamicTextFont : public TextFont, public FreetypeFont {
00044 PUBLISHED:
00045 DynamicTextFont(const Filename &font_filename, int face_index = 0);
00046 DynamicTextFont(const char *font_data, int data_length, int face_index);
00047 DynamicTextFont(const DynamicTextFont ©);
00048 virtual ~DynamicTextFont();
00049
00050 virtual PT(TextFont) make_copy() const;
00051
00052 INLINE const string &get_name() const;
00053
00054 INLINE bool set_point_size(PN_stdfloat point_size);
00055 INLINE PN_stdfloat get_point_size() const;
00056
00057 INLINE bool set_pixels_per_unit(PN_stdfloat pixels_per_unit);
00058 INLINE PN_stdfloat get_pixels_per_unit() const;
00059
00060 INLINE bool set_scale_factor(PN_stdfloat scale_factor);
00061 INLINE PN_stdfloat get_scale_factor() const;
00062
00063 INLINE void set_native_antialias(bool native_antialias);
00064 INLINE bool get_native_antialias() const;
00065
00066 INLINE int get_font_pixel_size() const;
00067
00068 INLINE PN_stdfloat get_line_height() const;
00069 INLINE PN_stdfloat get_space_advance() const;
00070
00071 INLINE void set_texture_margin(int texture_margin);
00072 INLINE int get_texture_margin() const;
00073 INLINE void set_poly_margin(PN_stdfloat poly_margin);
00074 INLINE PN_stdfloat get_poly_margin() const;
00075
00076 INLINE void set_page_size(int x_size, int y_size);
00077 INLINE int get_page_x_size() const;
00078 INLINE int get_page_y_size() const;
00079
00080 INLINE void set_minfilter(Texture::FilterType filter);
00081 INLINE Texture::FilterType get_minfilter() const;
00082 INLINE void set_magfilter(Texture::FilterType filter);
00083 INLINE Texture::FilterType get_magfilter() const;
00084 INLINE void set_anisotropic_degree(int anisotropic_degree);
00085 INLINE int get_anisotropic_degree() const;
00086
00087 INLINE void set_render_mode(RenderMode render_mode);
00088 INLINE RenderMode get_render_mode() const;
00089 INLINE void set_winding_order(WindingOrder winding_order);
00090 INLINE WindingOrder get_winding_order() const;
00091
00092 INLINE void set_fg(const LColor &fg);
00093 INLINE const LColor &get_fg() const;
00094 INLINE void set_bg(const LColor &bg);
00095 INLINE const LColor &get_bg() const;
00096 INLINE void set_outline(const LColor &outline_color, PN_stdfloat outline_width,
00097 PN_stdfloat outline_feather);
00098 INLINE const LColor &get_outline_color() const;
00099 INLINE PN_stdfloat get_outline_width() const;
00100 INLINE PN_stdfloat get_outline_feather() const;
00101 INLINE Texture::Format get_tex_format() const;
00102
00103 int get_num_pages() const;
00104 DynamicTextPage *get_page(int n) const;
00105 MAKE_SEQ(get_pages, get_num_pages, get_page);
00106
00107 int garbage_collect();
00108 void clear();
00109
00110 virtual void write(ostream &out, int indent_level) const;
00111
00112 public:
00113 virtual bool get_glyph(int character, const TextGlyph *&glyph);
00114
00115 private:
00116 void initialize();
00117 void update_filters();
00118 void determine_tex_format();
00119 DynamicTextGlyph *make_glyph(int character, FT_Face face, int glyph_index);
00120 void copy_bitmap_to_texture(const FT_Bitmap &bitmap, DynamicTextGlyph *glyph);
00121 void copy_pnmimage_to_texture(const PNMImage &image, DynamicTextGlyph *glyph);
00122 void blend_pnmimage_to_texture(const PNMImage &image, DynamicTextGlyph *glyph,
00123 const LColor &fg);
00124 DynamicTextGlyph *slot_glyph(int character, int x_size, int y_size);
00125
00126 void render_wireframe_contours(DynamicTextGlyph *glyph);
00127 void render_polygon_contours(DynamicTextGlyph *glyph, bool face, bool extrude);
00128
00129 static int outline_move_to(const FT_Vector *to, void *user);
00130 static int outline_line_to(const FT_Vector *to, void *user);
00131 static int outline_conic_to(const FT_Vector *control,
00132 const FT_Vector *to, void *user);
00133 static int outline_cubic_to(const FT_Vector *control1,
00134 const FT_Vector *control2,
00135 const FT_Vector *to, void *user);
00136 int outline_nurbs(NurbsCurveResult *ncr);
00137
00138 int _texture_margin;
00139 PN_stdfloat _poly_margin;
00140 int _page_x_size, _page_y_size;
00141
00142 Texture::FilterType _minfilter;
00143 Texture::FilterType _magfilter;
00144 int _anisotropic_degree;
00145
00146 RenderMode _render_mode;
00147 WindingOrder _winding_order;
00148
00149 LColor _fg, _bg, _outline_color;
00150 PN_stdfloat _outline_width;
00151 PN_stdfloat _outline_feather;
00152 bool _has_outline;
00153 Texture::Format _tex_format;
00154 bool _needs_image_processing;
00155
00156 typedef pvector< PT(DynamicTextPage) > Pages;
00157 Pages _pages;
00158 int _preferred_page;
00159
00160
00161
00162 typedef pmap<int, DynamicTextGlyph *> Cache;
00163 Cache _cache;
00164
00165
00166
00167
00168
00169 typedef pvector< PT(DynamicTextGlyph) > EmptyGlyphs;
00170 EmptyGlyphs _empty_glyphs;
00171
00172 class ContourPoint {
00173 public:
00174 INLINE ContourPoint(const LPoint2 &p, const LVector2 &in,
00175 const LVector2 &out);
00176 INLINE ContourPoint(PN_stdfloat px, PN_stdfloat py, PN_stdfloat tx, PN_stdfloat ty);
00177 INLINE void connect_to(const LVector2 &out);
00178 LPoint2 _p;
00179 LVector2 _in, _out;
00180 };
00181 typedef pvector<ContourPoint> Points;
00182
00183 class Contour {
00184 public:
00185 Points _points;
00186 bool _is_solid;
00187 int _start_vertex;
00188 };
00189
00190 typedef pvector<Contour> Contours;
00191 Contours _contours;
00192 LPoint2 _q;
00193
00194 public:
00195 static TypeHandle get_class_type() {
00196 return _type_handle;
00197 }
00198 static void init_type() {
00199 TextFont::init_type();
00200 register_type(_type_handle, "DynamicTextFont",
00201 TextFont::get_class_type());
00202 }
00203 virtual TypeHandle get_type() const {
00204 return get_class_type();
00205 }
00206 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00207
00208 private:
00209 static TypeHandle _type_handle;
00210
00211 friend class TextNode;
00212 };
00213
00214 INLINE ostream &operator << (ostream &out, const DynamicTextFont &dtf);
00215
00216 #include "dynamicTextFont.I"
00217
00218 #endif // HAVE_FREETYPE
00219
00220 #endif