arrow.h

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00001 // -*- C++ -*-
00002 
00003 /* 
00004  * GChemPaint library
00005  * arrow.h 
00006  *
00007  * Copyright (C) 2002-2008 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 
00031 namespace gcp {
00032 
00036 enum ArrowTypes
00037 {
00041         SimpleArrow,
00045         ReversibleArrow,
00049         FullReversibleArrow,
00050 };
00051 
00054 class Arrow: public gcu::Object
00055 {
00056 public:
00063         Arrow(gcu::TypeId Type);
00067         virtual ~Arrow();
00068 
00077         bool Load (xmlNodePtr node);
00086         void SetSelected (GtkWidget* w, int state);
00095         void SetCoords (double xstart, double ystart, double xend, double yend);
00104         bool GetCoords (double* xstart, double* ystart, double* xend, double* yend);
00112         void Move (double x, double y, double z = 0);
00120         void Transform2D (gcu::Matrix2D& m, double x, double y);
00125         double GetYAlign ();
00135         bool SetProperty (unsigned property, char const *value);
00136 
00137 protected:
00145         bool Save (xmlDocPtr xml, xmlNodePtr node) const;
00146         
00147 protected:
00151         double m_x;
00155         double m_y;
00159         double m_width;
00163         double m_height;
00164 };
00165 
00166 }       //      namespace gcp
00167 
00168 #endif  //GCHEMPAINT_ARROW_H

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