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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "imageitem.h"
//! [0]
ImageItem::ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent)
: QGraphicsPixmapItem(pixmap, parent)
{
recordId = id;
setAcceptHoverEvents(true);
timeLine.setDuration(150);
timeLine.setFrameRange(0, 150);
connect(&timeLine, SIGNAL(frameChanged(int)), this, SLOT(setFrame(int)));
connect(&timeLine, SIGNAL(finished()), this, SLOT(updateItemPosition()));
adjust();
}
//! [0]
//! [1]
void ImageItem::hoverEnterEvent(QGraphicsSceneHoverEvent * /*event*/)
{
timeLine.setDirection(QTimeLine::Forward);
if (z != 1.0) {
z = 1.0;
updateItemPosition();
}
if (timeLine.state() == QTimeLine::NotRunning)
timeLine.start();
}
//! [1]
//! [2]
void ImageItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * /*event*/)
{
timeLine.setDirection(QTimeLine::Backward);
if (z != 0.0)
z = 0.0;
if (timeLine.state() == QTimeLine::NotRunning)
timeLine.start();
}
//! [2]
//! [3]
void ImageItem::setFrame(int frame)
{
adjust();
QPointF center = boundingRect().center();
setTransform(QTransform::fromTranslate(center.x(), center.y()), true);
setTransform(QTransform::fromScale(1 + frame / 330.0, 1 + frame / 330.0), true);
setTransform(QTransform::fromTranslate(-center.x(), -center.y()), true);
}
//! [3]
//! [4]
void ImageItem::adjust()
{
QMatrix matrix;
matrix.scale(120/ boundingRect().width(), 120/ boundingRect().height());
setMatrix(matrix);
}
//! [4]
//! [5]
int ImageItem::id()
{
return recordId;
}
//! [5]
//! [6]
void ImageItem::updateItemPosition()
{
setZValue(z);
}
//! [6]
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