gcp/bond.h

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// -*- C++ -*-

/*
 * GChemPaint library
 * bond.h
 *
 * Copyright (C) 2001-2012 Jean Bréfort <jean.brefort@normalesup.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

#ifndef GCHEMPAINT_BOND_H
#define GCHEMPAINT_BOND_H

#include <gccv/item-client.h>
#include <gcu/bond.h>
#include <list>

namespace gcu {
class UIManager;
}

namespace gcp {

typedef enum
{
        NormalBondType,
        UpBondType,
        DownBondType,
        ForeBondType,
        UndeterminedBondType,
        NewmanBondType
} BondType;

typedef struct {
        double a;
        bool is_before;
} BondCrossing;

class Atom;
class WidgetData;

class Bond: public gcu::Bond, public gccv::ItemClient
{
public:
        Bond ();
        Bond (Atom* first, Atom* last, unsigned char order);
        virtual ~Bond ();

        Object* GetAtomAt (double x, double y, double z = 0.);
        BondType GetType() const {return m_type;}
        void SetType (BondType type);
        double GetAngle2D (Atom* pAtom);
        void AddCycle (gcu::Cycle* pCycle);
        void RemoveCycle (gcu::Cycle* pCycle);
        void RemoveAllCycles ();
        bool GetLine2DCoords (unsigned Num, double* x1, double* y1, double* x2, double* y2);
        virtual bool SaveNode (xmlDocPtr xml, xmlNodePtr node) const;
        bool LoadNode (xmlNodePtr node);
        void Move (double x, double y, double z = 0);
        void Transform2D (gcu::Matrix2D& m, double x, double y);
        double GetDist (double x, double y);
        void SetDirty ();
        void Revert ();
        void IncOrder (int n = 1);
        void AddItem ();
        void UpdateItem ();
        void SetSelected (int state);
        double GetYAlign ();
        bool IsCrossing (Bond *pBond);
        bool BuildContextualMenu (gcu::UIManager *UIManager, Object *object, double x, double y);
        void MoveToBack ();
        void BringToFront ();
        std::string GetProperty (unsigned property) const;
        bool SetProperty (unsigned property, char const *value);

        void AdjustPosition (double &x, double &y);

        void OnLoaded ();

private:
//      GnomeCanvasPathDef* BuildPathDef (WidgetData* pData);
//      GnomeCanvasPathDef* BuildCrossingPathDef (WidgetData* pData);
        BondType m_type;
        double m_coords[16];//coordinates of the lines used to represent the bond in the canvas
        bool m_CoordsCalc; //true if m_coords have been calculated, false else
        std::map<Bond*, BondCrossing> m_Crossing;
        int m_level; // to know which bond should be considered front
};

}       //      namespace gcp

#endif // GCHEMPAINT_BOND_H