//=============================================================================================================
/**
 * @file     arrow.h
 * @author   Christoph Dinh <chdinh@nmr.mgh.harvard.edu>
 * @since    0.1.0
 * @date     August, 2013
 *
 * @section  LICENSE
 *
 * Copyright (C) 2013, Christoph Dinh. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that
 * the following conditions are met:
 *     * Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *       following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
 *       the following disclaimer in the documentation and/or other materials provided with the distribution.
 *     * Neither the name of MNE-CPP authors nor the names of its contributors may be used
 *       to endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * @brief     Arrow class declaration
 *
 */

#ifndef ARROW_H
#define ARROW_H

//=============================================================================================================
// INCLUDES
//=============================================================================================================

#include "pluginitem.h"
#include <scShared/Management/pluginconnectorconnection.h>

//=============================================================================================================
// QT INCLUDES
//=============================================================================================================

#include <QSharedPointer>
#include <QGraphicsLineItem>

//=============================================================================================================
// FORWARD DECLARATIONS
//=============================================================================================================

class QGraphicsPolygonItem;
class QGraphicsLineItem;
class QGraphicsScene;
class QRectF;
class QGraphicsSceneMouseEvent;
class QPainterPath;

//=============================================================================================================
// DEFINE NAMESPACE MNESCAN
//=============================================================================================================

namespace MNESCAN
{

class Arrow : public QGraphicsLineItem
{
public:
    enum { Type = UserType + 4 };

    Arrow(PluginItem *startItem, PluginItem *endItem, SCSHAREDLIB::PluginConnectorConnection::SPtr &connection, QGraphicsItem *parent = 0);

    int type() const { return Type; }
    QRectF boundingRect() const;
    QPainterPath shape() const;
    void setColor(const QColor &color) { m_qColor = color; }
    PluginItem *startItem() const { return m_StartItem; }
    PluginItem *endItem() const { return m_EndItem; }

    SCSHAREDLIB::PluginConnectorConnection::SPtr connection() { return m_pConnection; }

    void updatePosition();

protected:
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);

private:
    PluginItem *m_StartItem;
    PluginItem *m_EndItem;

    SCSHAREDLIB::PluginConnectorConnection::SPtr m_pConnection;

    QColor m_qColor;
    QPolygonF arrowHead;
};
} //NAMESPACE

#endif // ARROW_H
