/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:BSD$+
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** You may use this file under the terms of the BSD license as follows:+
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**+
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** "Redistribution and use in source and binary forms, with or without+
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** modification, are permitted provided that the following conditions are+
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** met:+
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**   * Redistributions of source code must retain the above copyright+
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**     notice, this list of conditions and the following disclaimer.+
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**   * Redistributions in binary form must reproduce the above copyright+
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**     notice, this list of conditions and the following disclaimer in+
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**     the documentation and/or other materials provided with the+
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**     distribution.+
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**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor+
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**     the names of its contributors may be used to endorse or promote+
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**     products derived from this software without specific prior written+
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**     permission.+
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**+
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "imageitem.h"+
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+
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//! [0]+
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ImageItem::ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent,+
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                     QGraphicsScene *scene)+
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    : QGraphicsPixmapItem(pixmap, parent, scene)+
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{+
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    recordId = id;+
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    setAcceptsHoverEvents(true);+
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+
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    timeLine.setDuration(150);+
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    timeLine.setFrameRange(0, 150);+
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+
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    connect(&timeLine, SIGNAL(frameChanged(int)), this, SLOT(setFrame(int)));+
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    connect(&timeLine, SIGNAL(finished()), this, SLOT(updateItemPosition()));+
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+
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    adjust();+
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}+
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//! [0]+
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+
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//! [1]+
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void ImageItem::hoverEnterEvent(QGraphicsSceneHoverEvent * /*event*/)+
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{+
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    timeLine.setDirection(QTimeLine::Forward);+
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+
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    if (z != 1.0) {+
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        z = 1.0;+
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        updateItemPosition();+
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    }+
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+
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    if (timeLine.state() == QTimeLine::NotRunning)+
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        timeLine.start();+
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}+
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//! [1]+
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+
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//! [2]+
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void ImageItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * /*event*/)+
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{+
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    timeLine.setDirection(QTimeLine::Backward);+
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    if (z != 0.0)+
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        z = 0.0;+
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+
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    if (timeLine.state() == QTimeLine::NotRunning)+
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        timeLine.start();+
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}+
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//! [2]+
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+
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//! [3]+
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void ImageItem::setFrame(int frame)+
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{+
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    adjust();+
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    QPointF center = boundingRect().center();+
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+
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    translate(center.x(), center.y());+
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    scale(1 + frame / 330.0, 1 + frame / 330.0);+
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    translate(-center.x(), -center.y());+
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}+
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//! [3]+
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+
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//! [4]+
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void ImageItem::adjust()+
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{+
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    QMatrix matrix;+
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    matrix.scale(150/ boundingRect().width(), 120/ boundingRect().height());+
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    setMatrix(matrix);+
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}+
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//! [4]+
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+
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//! [5]+
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int ImageItem::id()+
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{+
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    return recordId;+
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}+
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//! [5]+
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+
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//! [6]+
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void ImageItem::updateItemPosition()+
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{+
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    setZValue(z);+
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}+
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//! [6]+
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+
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+
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