The Gnome Chemistry Utils 0.13.3
group.h
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00001 // -*- C++ -*-
00002 
00003 /* 
00004  * Gnome Chemistry Utils
00005  * gccv/group.h 
00006  *
00007  * Copyright (C) 2008-2010 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_GROUP_H
00026 #define GCCV_GROUP_H
00027 
00030 #include "item.h"
00031 #include <list>
00032 
00033 namespace gccv {
00034 
00046 class Group: public Item
00047 {
00048 public:
00054         Group (Canvas *canvas);
00062         Group (Canvas *canvas, double x, double y);
00070         Group (Group *parent, ItemClient *client = NULL);
00080         Group (Group *parent, double x, double y, ItemClient *client = NULL);
00084         virtual ~Group();
00085 
00093         void AddChild (Item *item);
00100         void RemoveChild (Item *item);
00107         void MoveToFront (Item *item);
00114         void MoveToBack (Item *item);
00115 
00121         Item *GetFirstChild (std::list<Item *>::iterator &it);
00127         Item *GetNextChild (std::list<Item *>::iterator &it);
00128 
00138         void AdjustBounds (double &x0, double &y0, double &x1, double &y1) const;
00145         void SetPosition (double x, double y);
00146 
00147         // virtual methods
00156         double Distance (double x, double y, Item **item) const;
00167         bool Draw (cairo_t *cr, double x0, double y0, double x1, double y1, bool is_vector) const;
00174         void Move (double x, double y);
00175 
00176 protected:
00177         void UpdateBounds ();
00178 
00179 private:
00180         std::list<Item *> m_Children;
00181         double m_x, m_y;        // translation offset
00182 };
00183 
00184 }
00185 
00186 #endif  //       GCCV_GROUP_H