mirror of
https://github.com/crystalidea/qt6windows7.git
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85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "imageitem.h"
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//! [0]
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ImageItem::ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent)
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: QGraphicsPixmapItem(pixmap, parent)
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{
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recordId = id;
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setAcceptHoverEvents(true);
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timeLine.setDuration(150);
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timeLine.setFrameRange(0, 150);
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connect(&timeLine, &QTimeLine::frameChanged, this, &ImageItem::setFrame);
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connect(&timeLine, &QTimeLine::finished, this, &ImageItem::updateItemPosition);
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adjust();
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}
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//! [0]
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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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if (z != 1.0) {
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z = 1.0;
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updateItemPosition();
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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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//! [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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if (timeLine.state() == QTimeLine::NotRunning)
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timeLine.start();
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}
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//! [2]
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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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setTransform(QTransform::fromTranslate(center.x(), center.y()), true);
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setTransform(QTransform::fromScale(1 + frame / 330.0, 1 + frame / 330.0), true);
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setTransform(QTransform::fromTranslate(-center.x(), -center.y()), true);
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}
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//! [3]
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//! [4]
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void ImageItem::adjust()
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{
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setTransform(QTransform::fromScale(120 / boundingRect().width(),
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120 / boundingRect().height()));
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}
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//! [4]
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//! [5]
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int ImageItem::id() const
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{
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return recordId;
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}
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//! [5]
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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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