lemniscate.h

00001 // -*- C++ -*-
00002 
00003 /* 
00004  * Gnome Chemistry Utils
00005  * gccv/lemniscate.h 
00006  *
00007  * Copyright (C) 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_LEMNISCATE_H
00026 #define GCCV_LEMNISCATE_H
00027 
00028 #include "line-item.h"
00029 
00030 namespace gccv {
00031 
00032 class Lemniscate: public LineItem
00033 {
00034         Lemniscate (Canvas *canvas, double x, double y, double radius);
00035         Lemniscate (Group *parent, double x, double y, double radius, ItemClient *client = NULL);
00036         virtual ~Lemniscate ();
00037 
00038         void SetPosition (double x, double y);
00039         void GetPosition (double &x, double &y);
00040 
00041         // virtual methods
00042         double Distance (double x, double y, Item **item) const;
00043         void Draw (cairo_t *cr, bool is_vector) const;
00044         void UpdateBounds ();
00045         void Move (double x, double y);
00046 
00047 private:
00048         double m_x, m_y;
00049 
00050 GCCV_ITEM_POS_PROP (double, Radius)
00051 GCCV_ITEM_PROP (double, Angle)
00052 GCCV_ITEM_PROP (double, Rotation)
00053 GCCV_ITEM_PROP (GOColor, ColorPlus)
00054 GCCV_ITEM_PROP (GOColor, ColorMinus)
00055 };
00056 
00057 }       //      namespace gccv
00058 
00059 #endif  //      GCCV_LEMNISCATE_H

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