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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "qquicktimelineanimation_p.h"
#include "qquicktimeline_p.h"
#include <private/qobject_p.h>
#include <private/qquickanimation_p_p.h>
#include <QTimer>
QT_BEGIN_NAMESPACE
/*!
\qmltype TimelineAnimation
\inherits NumberAnimation
\nativetype QQuickTimelineAnimation
\inqmlmodule QtQuick.Timeline
\ingroup qtqmltypes
\brief A number animation attached to a timeline.
Specifies how the current frame property of a timeline is animated. This
animates the properties of the objects targeted by the timeline.
*/
/*!
\qmlproperty bool TimelineAnimation::pingPong
Whether the animation is played backwards after it finishes. This is an easy
way to create circular animations.
*/
/*!
\qmlsignal TimelineAnimation::finished
This signal is emitted when the timeline animation finishes.
*/
QQuickTimelineAnimation::QQuickTimelineAnimation(QObject *parent) : QQuickNumberAnimation(parent)
{
setProperty(QLatin1String("currentFrame"));
connect(this, &QQuickAbstractAnimation::started, this, &QQuickTimelineAnimation::handleStarted);
connect(this, &QQuickAbstractAnimation::stopped, this, &QQuickTimelineAnimation::handleStopped);
}
void QQuickTimelineAnimation::setPingPong(bool b)
{
if (b == m_pinpong)
return;
m_pinpong = b;
emit pingPongChanged();
}
bool QQuickTimelineAnimation::pingPong() const
{
return m_pinpong;
}
void QQuickTimelineAnimation::handleStarted()
{
auto timeline = qobject_cast<QQuickTimeline*>(parent());
if (!timeline)
return;
for (QQuickTimelineAnimation *other : timeline->getAnimations()) {
if (other != this)
other->stop();
}
auto *privateObject = static_cast<QQuickPropertyAnimationPrivate*>(QObjectPrivate::get(this));
if (m_pinpong && m_originalStart) {
m_originalLoop = privateObject->loopCount;
m_currentLoop = 0;
privateObject->loopCount = 1;
privateObject->animationInstance->setLoopCount(1);
m_originalStart = false;
m_reversed = false;
}
}
static void swapStartEnd(QQuickPropertyAnimationPrivate *privateObject)
{
std::swap(privateObject->to, privateObject->from);
}
void QQuickTimelineAnimation::handleStopped()
{
if (!m_pinpong) {
emit finished();
return;
}
auto *privateObject = static_cast<QQuickPropertyAnimationPrivate*>(QObjectPrivate::get(this));
if (m_reversed)
m_currentLoop++;
if (!(privateObject->animationInstance->currentTime() < privateObject->duration)
&& (m_currentLoop < m_originalLoop
|| m_originalLoop == -1)) {
swapStartEnd(privateObject);
m_reversed = !m_reversed;
QQuickTimelineAnimation::start();
} else {
if (m_reversed)
swapStartEnd(privateObject);
m_originalStart = true;
m_reversed = false;
privateObject->loopCount = m_originalLoop;
emit finished();
}
}
QT_END_NAMESPACE