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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#include "animateditem.h"

#include <QtGui/qbitmap.h>
#include <QtGui/qpainter.h>

AnimatedPixmapItem::AnimatedPixmapItem(const QList<QPixmap> &animation,
                                       QGraphicsScene *scene)
    : QGraphicsItem(0, scene), currentFrame(0), vx(0), vy(0)
{
    for (int i = 0; i < animation.size(); ++i) {
        QPixmap pixmap = animation.at(i);
        Frame frame;
        frame.pixmap = pixmap;
        frame.shape = QPainterPath();
        frame.boundingRect = pixmap.rect();
        frames << frame;
    }
}

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

void AnimatedPixmapItem::advance(int phase)
{
    if (phase == 1)
        moveBy(vx, vy);
}

QRectF AnimatedPixmapItem::boundingRect() const
{
    return frames.at(currentFrame).boundingRect;
}

QPainterPath AnimatedPixmapItem::shape() const
{
    const Frame &f = frames.at(currentFrame);
    if (f.shape.isEmpty()) {
        QPainterPath path;
        path.addRegion(f.pixmap.createHeuristicMask());
        const_cast<Frame &>(f).shape = path;
    }
    return f.shape;
}

void AnimatedPixmapItem::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/,
                               QWidget * /*widget*/)
{
    painter->drawPixmap(0, 0, frames.at(currentFrame).pixmap);
}