/***************************************************************************
 *   Copyright (C) 2005-2014 by the Quassel Project                        *
 *   devel@quassel-irc.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 2 of the License, or     *
 *   (at your option) version 3.                                           *
 *                                                                         *
 *   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 Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/

#ifndef COLUMNHANDLEITEM_H_
#define COLUMNHANDLEITEM_H_

#include <QGraphicsItem>
#include <QGraphicsScene>
#include <QPropertyAnimation>

#include "chatscene.h"

class ColumnHandleItem : public QGraphicsObject
{
    Q_OBJECT
    Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity)

public :
        ColumnHandleItem(qreal width, QGraphicsItem *parent = 0);
    virtual inline int type() const { return ChatScene::ColumnHandleType; }

    inline qreal width() const { return _width; }
    inline QRectF boundingRect() const { return _boundingRect; }
    inline qreal sceneLeft() const { return _sceneLeft; }
    inline qreal sceneRight() const { return _sceneRight; }

    inline qreal opacity() const { return _opacity; }

    void setXPos(qreal xpos);
    void setXLimits(qreal min, qreal max);

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

public slots:
    void sceneRectChanged(const QRectF &);
    void setOpacity(qreal opacity);

protected:
    void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);

signals:
    void positionChanged(qreal x);

private:
    qreal _width;
    qreal _sceneLeft, _sceneRight;
    QRectF _boundingRect;
    bool _moving;
    qreal _offset;
    qreal _minXPos, _maxXPos;
    qreal _opacity;
    QPropertyAnimation *_animation;
};


#endif
