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

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    **
    ** This file is part of the example classes of the Qt Toolkit.
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    ** and appearing in the file LICENSE.GPL included in the packaging of
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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;
    }


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Qt 4.2.0-snapshot-20060701