The Gnome Chemistry Utils 0.13.3
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00001 // -*- C++ -*- 00002 00003 /* 00004 * Gnome Chemistry Utils 00005 * gccv/canvas.h 00006 * 00007 * Copyright (C) 2008-2009 Jean Bréfort <jean.brefort@normalesup.org> 00008 * 00009 * This program is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU General Public License as 00011 * published by the Free Software Foundation; either version 2 of the 00012 * License, or (at your option) any later version. 00013 * 00014 * This program is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 * GNU General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU General Public License 00020 * along with this program; if not, write to the Free Software 00021 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 00022 * USA 00023 */ 00024 00025 #ifndef GCCV_CANVAS_H 00026 #define GCCV_CANVAS_H 00027 00028 #include <gcu/macros.h> 00029 #include <gtk/gtk.h> 00030 00038 namespace gccv { 00039 00040 class Client; 00041 class Group; 00042 class Item; 00043 00052 class CanvasPrivate; 00053 class Canvas 00054 { 00055 friend class CanvasPrivate; 00056 public: 00063 Canvas (Client *client); 00075 virtual ~Canvas(); 00076 00085 Item *GetItemAt (double x, double y); 00089 GtkWidget *GetWidget () {return m_Widget;} 00097 void Invalidate (double x0, double y0, double x1, double y1); 00103 void SetBackgroundColor (GOColor color); 00109 void SetZoom (double zoom); 00116 void Render (cairo_t *cr, bool is_vector); 00117 00118 private: 00119 GtkWidget *m_Widget; 00120 Client *m_Client; 00121 bool m_Dragging; 00122 00126 GCU_RO_PROP (double, Zoom) 00130 GCU_RO_PROP (Group *, Root) 00148 GCU_PROP (double, Gap) 00152 GCU_RO_PROP (GOColor, BackgroundColor) 00156 GCU_RO_PROP (unsigned, LastEventState) 00157 }; 00158 00159 } 00160 00161 #endif // GCCV_CANVAS_H