30947c7fd4
The leak is just on termination, but we should show good practices in our examples Pick-to: 6.4 6.3 6.2 Change-Id: I39abb7545d3c68a1a537b865ba3fcb5e60c22fbf Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// 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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#ifndef ANIMATION_H
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#define ANIMATION_H
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#include <QtWidgets>
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#include <QtCore/qpropertyanimation.h>
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class Animation : public QPropertyAnimation {
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public:
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enum PathType {
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LinearPath,
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CirclePath,
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NPathTypes
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};
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Animation(QObject *target, const QByteArray &prop, QObject *parent = nullptr)
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: QPropertyAnimation(target, prop, parent)
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{
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setPathType(LinearPath);
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}
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void setPathType(PathType pathType)
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{
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if (pathType >= NPathTypes)
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qWarning("Unknown pathType %d", pathType);
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m_pathType = pathType;
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m_path = QPainterPath();
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}
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void updateCurrentTime(int currentTime) override
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{
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if (m_pathType == CirclePath) {
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if (m_path.isEmpty()) {
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QPointF to = endValue().toPointF();
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QPointF from = startValue().toPointF();
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m_path.moveTo(from);
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m_path.addEllipse(QRectF(from, to));
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}
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int dura = duration();
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const qreal progress = ((dura == 0) ? 1 : ((((currentTime - 1) % dura) + 1) / qreal(dura)));
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qreal easedProgress = easingCurve().valueForProgress(progress);
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if (easedProgress > 1.0) {
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easedProgress -= 1.0;
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} else if (easedProgress < 0) {
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easedProgress += 1.0;
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}
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QPointF pt = m_path.pointAtPercent(easedProgress);
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updateCurrentValue(pt);
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emit valueChanged(pt);
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} else {
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QPropertyAnimation::updateCurrentTime(currentTime);
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}
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}
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QPainterPath m_path;
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PathType m_pathType;
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};
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#endif // ANIMATION_H
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