/*
 * Copyright (C) OpenTX
 *
 * Based on code named
 *   th9x - http://code.google.com/p/th9x
 *   er9x - http://code.google.com/p/er9x
 *   gruvin9x - http://code.google.com/p/gruvin9x
 *
 * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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.
 */

#ifndef _EDGE_H_
#define _EDGE_H_

#include <QGraphicsItem>

class Node;

class Edge : public QGraphicsItem
{
public:
    Edge(Node *sourceNode, Node *destNode);
    ~Edge();

    Node *sourceNode() const;
    void setSourceNode(Node *node);

    Node *destNode() const;
    void setDestNode(Node *node);

    void adjust();

    enum { Type = UserType + 2 };
    int type() const { return Type; }
    
protected:
    QRectF boundingRect() const;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
    
private:
    Node *source, *dest;

    QPointF sourcePoint;
    QPointF destPoint;
    qreal arrowSize;
};

#endif // _EDGE_H_