blob: 1e19a346b869e92c959914f2893737f2264db14a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Quick Designer Components.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
\instantiates 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
|
