arrow.h

00001 // -*- C++ -*-
00002 
00003 /* 
00004  * GChemPaint library
00005  * arrow.h 
00006  *
00007  * Copyright (C) 2002-2007 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 GCHEMPAINT_ARROW_H
00026 #define GCHEMPAINT_ARROW_H
00027 
00028 #include <gcu/object.h>
00029 
00030 namespace gcp {
00031 
00032 enum
00033 {
00034         SimpleArrow,
00035         ReversibleArrow,
00036         FullReversibleArrow,
00037 };
00038 
00039 class Arrow: public gcu::Object
00040 {
00041 public:
00042         Arrow(gcu::TypeId Type);
00043         virtual ~Arrow();
00044         
00045         virtual bool Load (xmlNodePtr);
00046         virtual void SetSelected (GtkWidget* w, int state);
00047         void SetCoords (double xstart, double ystart, double xend, double yend);
00048         bool GetCoords (double* xstart, double* ystart, double* xend, double* yend);
00049         virtual void Move (double x, double y, double z = 0);
00050         virtual void Transform2D (gcu::Matrix2D& m, double x, double y);
00051         virtual double GetYAlign ();
00052 
00053 protected:
00054         bool Save (xmlDocPtr xml, xmlNodePtr node);
00055         
00056 protected:
00057         double m_x, m_y, m_width, m_height;
00058 };
00059 
00060 }       //      namespace gcp
00061 
00062 #endif  //GCHEMPAINT_ARROW_H

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