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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#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, &QTimeLine::frameChanged, this, &ImageItem::setFrame);
connect(&timeLine, &QTimeLine::finished, this, &ImageItem::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 / 300.0, 1 + frame / 300.0), true);
setTransform(QTransform::fromTranslate(-center.x(), -center.y()), true);
}
//! [3]
//! [4]
void ImageItem::adjust()
{
setTransform(QTransform::fromScale(120.0 / boundingRect().width(),
120.0 / boundingRect().height()));
}
//! [4]
//! [5]
int ImageItem::id() const
{
return recordId;
}
//! [5]
//! [6]
void ImageItem::updateItemPosition()
{
setZValue(z);
}
//! [6]
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