# 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
    00044 class Fragment: public TextObject
    00045 {
    00046 public:
    00050         Fragment ();
    00058         Fragment (double x, double y);
    00062         virtual ~Fragment ();
    00063
    00072         void SetSelected (GtkWidget *w, int state);
    00078         void Add (GtkWidget *w) const;
    00084         void Update (GtkWidget *w) const;
    00091         xmlNodePtr Save (xmlDocPtr xml) const;
    00099         xmlNodePtr SaveSelection (xmlDocPtr xml) const;
    00106         bool Load (xmlNodePtr node);
    00112         bool OnChanged (bool save);
    00116         void AnalContent ();
    00123         void AnalContent (unsigned start, unsigned &end);
    00132         Object* GetAtomAt (double x, double y, double z = 0.);
    00140         void Move (double x, double y, double z = 0);
    00148         void Transform2D (gcu::Matrix2D& m, double x, double y);
    00153         void OnChangeAtom ();
    00157         Atom* GetAtom () {return (Atom*) m_Atom;}
    00165         int GetElementAtPos (unsigned start, unsigned &end);
    00186         int GetChargePosition (FragmentAtom *pAtom, unsigned char &Pos, double Angle, double &x, double &y);
    00196         int GetAvailablePosition (double &x, double &y);
    00204         bool GetPosition (double angle, double &x, double &y);
    00208         bool Validate ();
    00212         double GetYAlign ();
    00213
    00223         bool SetProperty (unsigned property, char const *value);
    00224
    00229         bool Analyze ();
    00230
    00235         void Update ();
    00236
    00237 private:
    00238         bool SavePortion (xmlDocPtr xml, xmlNodePtr node, unsigned start, unsigned end) const;
    00239
    00240 private:
    00241         FragmentAtom *m_Atom;
    00242         unsigned m_BeginAtom, m_EndAtom;
    00243         int m_lbearing;
    00244         double m_CHeight;
    00245         bool m_Inversable;
    00246 };
    00247
    00248 }       //      namespace gcp
    00249
    00250 #endif  //GCHEMPAINT_FRAGMENT_H