Qt 4.2: animateditem.h Example File (graphicsview/portedasteroids/animateditem.h)

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# animateditem.h Example File
graphicsview/portedasteroids/animateditem.h

     /****************************************************************************
     **
     ** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License version 2.0 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 GNU
     ** General Public Licensing requirements will be met:
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     #ifndef ANIMATEDPIXMAPITEM_H
     #define ANIMATEDPIXMAPITEM_H

     #include <QGraphicsItem>

     class AnimatedPixmapItem : public QGraphicsPixmapItem
     {
     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()); }
         inline void setVelocity(qreal xvel, qreal yvel)
         { vx = xvel; vy = yvel; }
         inline qreal xVelocity() const
         { return vx; }
         inline qreal yVelocity() const
         { return vy; }

         QPainterPath shape() const;

         void advance(int phase);

     private:
         int currentFrame;
         QList<QPixmap> frames;
         qreal vx, vy;
     };

     #endif