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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <private/qobject_p.h>
#include "qmlanimation.h"
#include "qmltransition.h"
#include "qmlbehavior.h"
#include <QtDeclarative/qmlcontext.h>
#include <QtDeclarative/qmlinfo.h>
#include <QtCore/qparallelanimationgroup.h>
QT_BEGIN_NAMESPACE
QML_DEFINE_TYPE(Qt,4,6,(QT_VERSION&0x00ff00)>>8,Behavior,QmlBehavior)
class QmlBehaviorPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QmlBehavior)
public:
QmlBehaviorPrivate() : animation(0) {}
QmlMetaProperty property;
QVariant currentValue;
QmlAbstractAnimation *animation;
};
QmlBehavior::QmlBehavior(QObject *parent)
: QObject(*(new QmlBehaviorPrivate), parent)
{
}
QmlAbstractAnimation *QmlBehavior::animation()
{
Q_D(QmlBehavior);
return d->animation;
}
void QmlBehavior::setAnimation(QmlAbstractAnimation *animation)
{
Q_D(QmlBehavior);
if (d->animation) {
qmlInfo(this) << "Can't change the animation assigned to a Behavior.";
return;
}
d->animation = animation;
if (d->animation)
d->animation->setTarget(d->property);
}
QmlBehavior::~QmlBehavior()
{
}
void QmlBehavior::write(const QVariant &value)
{
Q_D(QmlBehavior);
if (!d->animation) {
d->property.write(value, QmlMetaProperty::BypassInterceptor | QmlMetaProperty::DontRemoveBinding);
return;
}
d->currentValue = d->property.read();
d->animation->qtAnimation()->stop();
QmlStateOperation::ActionList actions;
Action action;
action.property = d->property;
action.fromValue = d->currentValue;
action.toValue = value;
actions << action;
QList<QmlMetaProperty> after;
if (d->animation)
d->animation->transition(actions, after, QmlAbstractAnimation::Forward);
d->animation->qtAnimation()->start();
if (!after.contains(d->property))
d->property.write(value, QmlMetaProperty::BypassInterceptor | QmlMetaProperty::DontRemoveBinding);
}
void QmlBehavior::setTarget(const QmlMetaProperty &property)
{
Q_D(QmlBehavior);
d->property = property;
d->currentValue = property.read();
if (d->animation)
d->animation->setTarget(property);
}
QT_END_NAMESPACE
|
