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

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        ** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
        **
        ** This file is part of the example classes of the Qt Toolkit.
        **
        ** Licensees holding valid Qt Preview licenses may use this file in
        ** accordance with the Qt Preview License Agreement provided with the
        ** Software.
        **
        ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
        ** information about Qt Commercial License Agreements.
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        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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        #include "animateditem.h"

        AnimatedPixmapItem::AnimatedPixmapItem(const QList<QPixmap> &animation,
                                               QGraphicsScene *scene)
            : QGraphicsPixmapItem(0, scene), currentFrame(0), frames(animation), vx(0), vy(0)
        {
        }

        void AnimatedPixmapItem::setFrame(int frame)
        {
            if (!frames.isEmpty()) {
                currentFrame = frame % frames.size();
                setPixmap(frames.at(currentFrame));
            }
        }

        void AnimatedPixmapItem::advance(int phase)
        {
            if (phase == 1 && !frames.isEmpty()) {
                currentFrame = (currentFrame + 1) % frames.size();
                setPixmap(frames.at(currentFrame));
                if (vx || vy)
                    moveBy(vx, vy);
            }
        }

        QPainterPath AnimatedPixmapItem::shape() const
        {
            QPainterPath path;
            path.addRect(0, 0,
                         frames.at(currentFrame).width(),
                         frames.at(currentFrame).height());
            return path;
        }