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00003 #ifndef _LIBGNOMECANVASMM_CANVAS_H
00004 #define _LIBGNOMECANVASMM_CANVAS_H
00005
00006 #include <glibmm.h>
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00033 #include <libgnomecanvas/gnome-canvas.h>
00034 #include <libgnomecanvasmm/affinetrans.h>
00035 #include <gtkmm/layout.h>
00036 #include <gdkmm/color.h>
00037
00038
00039 #ifndef DOXYGEN_SHOULD_SKIP_THIS
00040 typedef struct _GnomeCanvas GnomeCanvas;
00041 typedef struct _GnomeCanvasClass GnomeCanvasClass;
00042 #endif
00043
00044
00045 namespace Gnome
00046 {
00047
00048 namespace Canvas
00049 { class Canvas_Class; }
00050
00051 }
00052 namespace Gnome
00053 {
00054
00055 namespace Canvas
00056 {
00057
00058 class Item;
00059 class Group;
00060
00067 class Canvas : public Gtk::Layout
00068 {
00069 public:
00070 #ifndef DOXYGEN_SHOULD_SKIP_THIS
00071 typedef Canvas CppObjectType;
00072 typedef Canvas_Class CppClassType;
00073 typedef GnomeCanvas BaseObjectType;
00074 typedef GnomeCanvasClass BaseClassType;
00075 #endif
00076
00077 virtual ~Canvas();
00078
00079 #ifndef DOXYGEN_SHOULD_SKIP_THIS
00080
00081 protected:
00082 friend class Canvas_Class;
00083 static CppClassType canvas_class_;
00084
00085
00086 Canvas(const Canvas&);
00087 Canvas& operator=(const Canvas&);
00088
00089 protected:
00090 explicit Canvas(const Glib::ConstructParams& construct_params);
00091 explicit Canvas(GnomeCanvas* castitem);
00092
00093 #endif
00094
00095 public:
00096 #ifndef DOXYGEN_SHOULD_SKIP_THIS
00097 static GType get_type() G_GNUC_CONST;
00098 static GType get_base_type() G_GNUC_CONST;
00099 #endif
00100
00102 GnomeCanvas* gobj() { return reinterpret_cast<GnomeCanvas*>(gobject_); }
00103
00105 const GnomeCanvas* gobj() const { return reinterpret_cast<GnomeCanvas*>(gobject_); }
00106
00107
00108 public:
00109
00110
00111 protected:
00112
00113
00114
00115 virtual void on_draw_background(const Glib::RefPtr<Gdk::Drawable>& drawable, int x, int y, int width, int height);
00116 virtual void on_render_background(GnomeCanvasBuf* buf);
00117
00118
00119 private:
00120
00121 public:
00122 Canvas();
00123
00124
00125
00126
00127
00128
00132 Group* root() const;
00133
00134
00135
00144 void set_scroll_region(double x1, double y1, double x2, double y2);
00145
00146
00147
00154 void get_scroll_region(double& x1, double& y1, double& x2, double& y2) const;
00155
00156
00164 void set_center_scroll_region(bool center);
00165
00166
00171 bool get_center_scroll_region() const;
00172
00173
00174
00175
00188 void set_pixels_per_unit(double n = 1.0);
00189
00190
00191
00192
00193
00194
00195
00196
00204 void scroll_to(int x, int y);
00205
00206
00207
00213 void get_scroll_offsets(int& cx, int& cy) const;
00214
00215
00216
00217
00218
00224 void update_now();
00225
00226
00227
00228
00229
00230
00231
00239 Item* get_item_at(double x, double y) const;
00240
00241
00242
00243
00244
00245
00255 void request_redraw(int x1, int y1, int x2, int y2);
00256
00257
00264 void request_redraw(ArtUta* uta);
00265
00266 Art::AffineTrans w2c_affine() const;
00267
00268
00269
00270
00271
00272
00273
00280 void w2c(double wx, double wy, int& cx, int& cy) const;
00281
00289 void w2c(double wx, double wy, double& cx, double& cy) const;
00290
00291
00292
00299 void c2w(int cx, int cy, double& wx, double& wy) const;
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00313 void window_to_world (double winx,double winy, double& worldx,double& worldy) const;
00314
00315
00316
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00318
00325 void world_to_window (double worldx, double worldy, double& winx, double& winy) const;
00326
00327
00328 bool get_color(const Glib::ustring& spec, Gdk::Color& color) const;
00329
00330
00331
00332
00338 gulong get_color_pixel(guint rgba) const;
00339
00345 void set_stipple_origin(const Glib::RefPtr<Gdk::GC>& gc);
00346
00353 void set_dither(Gdk::RgbDither dither);
00354
00358 Gdk::RgbDither get_dither() const;
00359
00360
00361
00362
00368 void update_svp(ArtSVP** p_svp, ArtSVP* new_svp);
00369
00376 void update_svp_clip(ArtSVP** p_svp, ArtSVP* new_svp, ArtSVP* clip_svp);
00377
00378
00379
00380
00381 double get_pixels_per_unit() const;
00382
00383
00384
00385
00386
00387 Glib::SignalProxy5< void,const Glib::RefPtr<Gdk::Drawable>&,int,int,int,int > signal_draw_background();
00388
00389
00390
00391
00392
00393
00394
00395 Glib::SignalProxy1< void,GnomeCanvasBuf* > signal_render_background();
00396
00397
00398 virtual void request_update_vfunc();
00399
00400
00407 Glib::PropertyProxy<bool> property_aa() ;
00408
00415 Glib::PropertyProxy_ReadOnly<bool> property_aa() const;
00416
00417
00418 };
00419
00420
00421
00422 class CanvasAA : public Canvas
00423 {
00424 public:
00425 CanvasAA();
00426 virtual ~CanvasAA();
00427 };
00428
00429 }
00430 }
00431
00432
00433 namespace Glib
00434 {
00440 Gnome::Canvas::Canvas* wrap(GnomeCanvas* object, bool take_copy = false);
00441 }
00442 #endif
00443