source: trunk/examples/graphicsview/portedasteroids/animateditem.h@ 168

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information ([email protected])
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at [email protected].
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef ANIMATEDPIXMAPITEM_H
#define ANIMATEDPIXMAPITEM_H

#include <QGraphicsItem>

class AnimatedPixmapItem : public QGraphicsItem
{
public:
    AnimatedPixmapItem(const QList<QPixmap> &animation, QGraphicsScene *scene = 0);

    void setFrame(int frame);
    inline int frame() const
    { return currentFrame; }
    inline int frameCount() const
    { return frames.size(); }
    inline QPixmap image(int frame) const
    { return frames.isEmpty() ? QPixmap() : frames.at(frame % frames.size()).pixmap; }
    inline void setVelocity(qreal xvel, qreal yvel)
    { vx = xvel; vy = yvel; }
    inline qreal xVelocity() const
    { return vx; }
    inline qreal yVelocity() const
    { return vy; }

    QRectF boundingRect() const;
    QPainterPath shape() const;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
    
    void advance(int phase);
    
private:
    struct Frame {
        QPixmap pixmap;
        QPainterPath shape;
        QRectF boundingRect;
    };
    
    int currentFrame;
    QList<Frame> frames;
    qreal vx, vy;
};

#endif