fragment.h

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00001 // -*- C++ -*-
00002 
00003 /* 
00004  * GChemPaint library
00005  * fragment.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_FRAGMENT_H
00026 #define GCHEMPAINT_FRAGMENT_H
00027 
00028 #include "text-object.h"
00029 #include "libgnomecanvas/gnome-canvas.h"
00030 
00032 namespace gcp {
00033 
00034 class FragmentAtom;
00035 class Atom;
00036 
00039 class Fragment: public TextObject
00040 {
00041 friend class FragmentTool;
00042 public:
00043         Fragment ();
00044         Fragment (double x, double y);
00045         virtual ~Fragment ();
00046 
00047         void SetSelected (GtkWidget *w, int state);
00048         void Add (GtkWidget *w) const;
00049         void Update (GtkWidget *w) const;
00050         xmlNodePtr Save (xmlDocPtr xml) const;
00051         xmlNodePtr SaveSelection (xmlDocPtr xml) const;
00052         bool Load (xmlNodePtr);
00053         bool OnChanged (bool save);
00054         void AnalContent ();
00055         void AnalContent (unsigned start, unsigned &end);
00056         Object* GetAtomAt (double x, double y, double z = 0.);
00057         void Move (double x, double y, double z = 0);
00058         void Transform2D (gcu::Matrix2D& m, double x, double y);
00059         void OnChangeAtom ();
00060         Atom* GetAtom () {return (Atom*) m_Atom;}
00061         int GetElementAtPos (unsigned start, unsigned &end);
00062         int GetChargePosition (FragmentAtom *pAtom, unsigned char &Pos, double Angle, double &x, double &y);
00063         int GetAvailablePosition (double &x, double &y);
00064         bool GetPosition (double angle, double &x, double &y);
00065         bool Validate ();
00066         double GetYAlign ();
00067 
00070         bool SetProperty (unsigned property, char const *value);
00071 
00074         bool Analyze ();
00075 
00078         void Update ();
00079 
00080 private:
00081         bool SavePortion (xmlDocPtr xml, xmlNodePtr node, unsigned start, unsigned end) const;
00082 
00083 private:
00084         FragmentAtom *m_Atom;
00085         unsigned m_BeginAtom, m_EndAtom;
00086         int m_lbearing;
00087         double m_CHeight;
00088         bool m_Inversable;
00089 };
00090 
00091 }       //      namespace gcp
00092 
00093 #endif  //GCHEMPAINT_FRAGMENT_H

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