Edge.h

/*
 *   Copyright 2011, 2012 Lukas Jirkovsky
 *
 *   This file is part of FotoSHOCK.
 *
 *   FotoSHOCK 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, version 3 of the License.
 *
 *   FotoSHOCK 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 FotoSHOCK.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef EDGE_H
#define EDGE_H

#include <QtGui/qgraphicsitem.h>

class Connector;

class Edge : public QGraphicsItem {
    public:
        Edge();
        Edge(Connector* source, Connector* dest);

        void setSourceNode(Connector* node);
        void setDestNode(Connector* node);
        Connector* sourceNode() const;
        Connector* destNode() const;
        // use only when the edge is not conneted to anything
        void setSourcePos(QPointF pos);
        void setDestPos(QPointF pos);

        virtual void paint (QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
        virtual QRectF boundingRect() const;
        
        // updates the position according to its endpoints and updates it.
        void updatePos();
    private:
        Connector* m_source;
        Connector* m_dest;
        
        QPointF m_sourcePos;
        QPointF m_destPos;
};

#endif // EDGE_H