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qquickitemviewtransition_p.h

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Line	Source	Count
1	/****************************************************************************	-
2	**	-
3	** Copyright (C) 2016 The Qt Company Ltd.	-
4	** Contact: https://www.qt.io/licensing/	-
5	**	-
6	** This file is part of the QtQuick module of the Qt Toolkit.	-
7	**	-
8	** $QT_BEGIN_LICENSE:LGPL$	-
9	** Commercial License Usage	-
10	** Licensees holding valid commercial Qt licenses may use this file in	-
11	** accordance with the commercial license agreement provided with the	-
12	** Software or, alternatively, in accordance with the terms contained in	-
13	** a written agreement between you and The Qt Company. For licensing terms	-
14	** and conditions see https://www.qt.io/terms-conditions. For further	-
15	** information use the contact form at https://www.qt.io/contact-us.	-
16	**	-
17	** GNU Lesser General Public License Usage	-
18	** Alternatively, this file may be used under the terms of the GNU Lesser	-
19	** General Public License version 3 as published by the Free Software	-
20	** Foundation and appearing in the file LICENSE.LGPL3 included in the	-
21	** packaging of this file. Please review the following information to	-
22	** ensure the GNU Lesser General Public License version 3 requirements	-
23	** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.	-
24	**	-
25	** GNU General Public License Usage	-
26	** Alternatively, this file may be used under the terms of the GNU	-
27	** General Public License version 2.0 or (at your option) the GNU General	-
28	** Public license version 3 or any later version approved by the KDE Free	-
29	** Qt Foundation. The licenses are as published by the Free Software	-
30	** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3	-
31	** included in the packaging of this file. Please review the following	-
32	** information to ensure the GNU General Public License requirements will	-
33	** be met: https://www.gnu.org/licenses/gpl-2.0.html and	-
34	** https://www.gnu.org/licenses/gpl-3.0.html.	-
35	**	-
36	** $QT_END_LICENSE$	-
37	**	-
38	****************************************************************************/	-
39		-
40	#ifndef QQUICKITEMVIEWTRANSITION_P_P_H	-
41	#define QQUICKITEMVIEWTRANSITION_P_P_H	-
42		-
43	//	-
44	// W A R N I N G	-
45	// -------------	-
46	//	-
47	// This file is not part of the Qt API. It exists purely as an	-
48	// implementation detail. This header file may change from version to	-
49	// version without notice, or even be removed.	-
50	//	-
51	// We mean it.	-
52	//	-
53		-
54	#include <QtQuick/private/qtquickglobal_p.h>	-
55		-
56	QT_REQUIRE_CONFIG(quick_viewtransitions);	-
57		-
58	#include <QtCore/qobject.h>	-
59	#include <QtCore/qpoint.h>	-
60	#include <QtQml/qqml.h>	-
61	#include <private/qqmlguard_p.h>	-
62	#include <private/qquicktransition_p.h>	-
63		-
64	QT_BEGIN_NAMESPACE	-
65		-
66	class QQuickItem;	-
67	class QQuickTransition;	-
68	class QQuickItemViewTransitionableItem;	-
69	class QQuickItemViewTransitionJob;	-
70		-
71		-
72	class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitionChangeListener	-
73	{	-
74	public:	-
75	QQuickItemViewTransitionChangeListener() {}	-
76	virtual ~QQuickItemViewTransitionChangeListener() {}	-
77		-
78	virtual void viewItemTransitionFinished(QQuickItemViewTransitionableItem *item) = 0;	-
79	};	-
80		-
81		-
82	class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitioner	-
83	{	-
84	public:	-
85	enum TransitionType {	-
86	NoTransition,	-
87	PopulateTransition,	-
88	AddTransition,	-
89	MoveTransition,	-
90	RemoveTransition	-
91	};	-
92		-
93	QQuickItemViewTransitioner();	-
94	virtual ~QQuickItemViewTransitioner();	-
95		-
96	bool canTransition(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const;	-
97	void transitionNextReposition(QQuickItemViewTransitionableItem *item, QQuickItemViewTransitioner::TransitionType type, bool isTarget);	-
98		-
99	void addToTargetLists(QQuickItemViewTransitioner::TransitionType type, QQuickItemViewTransitionableItem *item, int index);	-
100	void resetTargetLists();	-
101		-
102	QQuickTransition *transitionObject(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const;	-
103	const QList<int> &targetIndexes(QQuickItemViewTransitioner::TransitionType type) const;	-
104	const QList<QObject *> &targetItems(QQuickItemViewTransitioner::TransitionType type) const;	-
105		-
106	inline void setPopulateTransitionEnabled(bool b) { usePopulateTransition = b; } executed 3340 times by 5 tests: `end of block` Executed by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation	3340
107	inline bool populateTransitionEnabled() const { return usePopulateTransition; } executed 3708 times by 2 tests: `return usePopulateTransition;` Executed by: tst_examples tst_qquickpositioners	3708
108		-
109	inline void setChangeListener(QQuickItemViewTransitionChangeListener *obj) { changeListener = obj; } executed 832 times by 4 tests: `end of block` Executed by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickspringanimation	832
110		-
111	QSet<QQuickItemViewTransitionJob *> runningJobs;	-
112		-
113	QList<int> addTransitionIndexes;	-
114	QList<int> moveTransitionIndexes;	-
115	QList<int> removeTransitionIndexes;	-
116	QList<QObject *> addTransitionTargets;	-
117	QList<QObject *> moveTransitionTargets;	-
118	QList<QObject *> removeTransitionTargets;	-
119		-
120	QQmlGuard<QQuickTransition> populateTransition;	-
121	QQmlGuard<QQuickTransition> addTransition;	-
122	QQmlGuard<QQuickTransition> addDisplacedTransition;	-
123	QQmlGuard<QQuickTransition> moveTransition;	-
124	QQmlGuard<QQuickTransition> moveDisplacedTransition;	-
125	QQmlGuard<QQuickTransition> removeTransition;	-
126	QQmlGuard<QQuickTransition> removeDisplacedTransition;	-
127	QQmlGuard<QQuickTransition> displacedTransition;	-
128		-
129	private:	-
130	friend class QQuickItemViewTransitionJob;	-
131		-
132	QQuickItemViewTransitionChangeListener *changeListener;	-
133	bool usePopulateTransition;	-
134		-
135	void finishedTransition(QQuickItemViewTransitionJob job, QQuickItemViewTransitionableItem item);	-
136	};	-
137		-
138		-
139	/*	-
140	An item that can be transitioned using QQuickViewTransitionJob.	-
141	*/	-
142	class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitionableItem	-
143	{	-
144	public:	-
145	QQuickItemViewTransitionableItem(QQuickItem *i);	-
146	virtual ~QQuickItemViewTransitionableItem();	-
147		-
148	qreal itemX() const;	-
149	qreal itemY() const;	-
150		-
151	void moveTo(const QPointF &pos, bool immediate = false);	-
152		-
153	bool transitionScheduledOrRunning() const;	-
154	bool transitionRunning() const;	-
155	bool isPendingRemoval() const;	-
156		-
157	bool prepareTransition(QQuickItemViewTransitioner *transitioner, int index, const QRectF &viewBounds);	-
158	void startTransition(QQuickItemViewTransitioner *transitioner, int index);	-
159		-
160	QPointF nextTransitionTo;	-
161	QPointF lastMovedTo;	-
162	QPointF nextTransitionFrom;	-
163	QQuickItem *item;	-
164	QQuickItemViewTransitionJob *transition;	-
165	QQuickItemViewTransitioner::TransitionType nextTransitionType;	-
166	bool isTransitionTarget : 1;	-
167	bool nextTransitionToSet : 1;	-
168	bool nextTransitionFromSet : 1;	-
169	bool lastMovedToSet : 1;	-
170	bool prepared : 1;	-
171		-
172	private:	-
173	friend class QQuickItemViewTransitioner;	-
174	friend class QQuickItemViewTransitionJob;	-
175	void setNextTransition(QQuickItemViewTransitioner::TransitionType, bool isTargetItem);	-
176	bool transitionWillChangePosition() const;	-
177	void finishedTransition();	-
178	void resetNextTransitionPos();	-
179	void clearCurrentScheduledTransition();	-
180	void stopTransition();	-
181	};	-
182		-
183		-
184	class QQuickViewTransitionAttached : public QObject	-
185	{	-
186	Q_OBJECT	-
187		-
188	Q_PROPERTY(int index READ index NOTIFY indexChanged)	-
189	Q_PROPERTY(QQuickItem* item READ item NOTIFY itemChanged)	-
190	Q_PROPERTY(QPointF destination READ destination NOTIFY destinationChanged)	-
191		-
192	Q_PROPERTY(QList<int> targetIndexes READ targetIndexes NOTIFY targetIndexesChanged)	-
193	Q_PROPERTY(QQmlListProperty<QObject> targetItems READ targetItems NOTIFY targetItemsChanged)	-
194		-
195	public:	-
196	QQuickViewTransitionAttached(QObject *parent);	-
197		-
198	int index() const { return m_index; } executed 8560 times by 3 tests: `return m_index;` Executed by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners	8560
199	QQuickItem *item() const { return m_item; } executed 8566 times by 3 tests: `return m_item;` Executed by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners	8566
200	QPointF destination() const { return m_destination; } never executed: `return m_destination;`	0
201		-
202	QList<int> targetIndexes() const { return m_targetIndexes; } executed 9018 times by 3 tests: `return m_targetIndexes;` Executed by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners	9018
203	QQmlListProperty<QObject> targetItems();	-
204		-
205	static QQuickViewTransitionAttached qmlAttachedProperties(QObject );	-
206		-
207	Q_SIGNALS:	-
208	void indexChanged();	-
209	void itemChanged();	-
210	void destinationChanged();	-
211		-
212	void targetIndexesChanged();	-
213	void targetItemsChanged();	-
214		-
215	private:	-
216	friend class QQuickItemViewTransitionJob;	-
217	QPointF m_destination;	-
218	QList<int> m_targetIndexes;	-
219	QList<QObject *> m_targetItems;	-
220		-
221	QQuickItem *m_item;	-
222	int m_index;	-
223	};	-
224		-
225	QT_END_NAMESPACE	-
226		-
227	QML_DECLARE_TYPE(QQuickViewTransitionAttached)	-
228	QML_DECLARE_TYPEINFO(QQuickViewTransitionAttached, QML_HAS_ATTACHED_PROPERTIES)	-
229		-
230	#endif // QQUICKITEMVIEWTRANSITION_P_P_H	-

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/****************************************************************************

** Contact: https://www.qt.io/licensing/

** This file is part of the QtQuick module of the Qt Toolkit.

** $QT_BEGIN_LICENSE:LGPL$

** 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 Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 3 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL3 included in the

** packaging of this file. Please review the following information to

** ensure the GNU Lesser General Public License version 3 requirements

** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.

** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU

** General Public License version 2.0 or (at your option) the GNU General

** Public license version 3 or 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.GPL2 and 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-2.0.html and

** https://www.gnu.org/licenses/gpl-3.0.html.

** $QT_END_LICENSE$

****************************************************************************/

#ifndef QQUICKITEMVIEWTRANSITION_P_P_H

#define QQUICKITEMVIEWTRANSITION_P_P_H

// W A R N I N G

// -------------

// This file is not part of the Qt API. It exists purely as an

// implementation detail. This header file may change from version to

// version without notice, or even be removed.

// We mean it.

#include <QtQuick/private/qtquickglobal_p.h>

QT_REQUIRE_CONFIG(quick_viewtransitions);

#include <QtCore/qobject.h>

#include <QtCore/qpoint.h>

#include <QtQml/qqml.h>

#include <private/qqmlguard_p.h>

#include <private/qquicktransition_p.h>

QT_BEGIN_NAMESPACE

class QQuickItem;

class QQuickTransition;

class QQuickItemViewTransitionableItem;

class QQuickItemViewTransitionJob;

class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitionChangeListener

{

public:

QQuickItemViewTransitionChangeListener() {}

virtual ~QQuickItemViewTransitionChangeListener() {}

virtual void viewItemTransitionFinished(QQuickItemViewTransitionableItem *item) = 0;

};

class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitioner

{

public:

enum TransitionType {

NoTransition,

PopulateTransition,

AddTransition,

MoveTransition,

RemoveTransition

};

QQuickItemViewTransitioner();

virtual ~QQuickItemViewTransitioner();

bool canTransition(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const;

void transitionNextReposition(QQuickItemViewTransitionableItem *item, QQuickItemViewTransitioner::TransitionType type, bool isTarget);

void addToTargetLists(QQuickItemViewTransitioner::TransitionType type, QQuickItemViewTransitionableItem *item, int index);

100

void resetTargetLists();

101

102

QQuickTransition *transitionObject(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const;

103

const QList<int> &targetIndexes(QQuickItemViewTransitioner::TransitionType type) const;

104

const QList<QObject *> &targetItems(QQuickItemViewTransitioner::TransitionType type) const;

105

106

inline void setPopulateTransitionEnabled(bool b) { usePopulateTransition = b; }

executed 3340 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

3340

107

inline bool populateTransitionEnabled() const { return usePopulateTransition; }

executed 3708 times by 2 tests: return usePopulateTransition;

Executed by:

tst_examples
tst_qquickpositioners

3708

108

109

inline void setChangeListener(QQuickItemViewTransitionChangeListener *obj) { changeListener = obj; }

executed 832 times by 4 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickspringanimation

832

110

111

QSet<QQuickItemViewTransitionJob *> runningJobs;

112

113

QList<int> addTransitionIndexes;

114

QList<int> moveTransitionIndexes;

115

QList<int> removeTransitionIndexes;

116

QList<QObject *> addTransitionTargets;

117

QList<QObject *> moveTransitionTargets;

118

QList<QObject *> removeTransitionTargets;

119

120

QQmlGuard<QQuickTransition> populateTransition;

121

QQmlGuard<QQuickTransition> addTransition;

122

QQmlGuard<QQuickTransition> addDisplacedTransition;

123

QQmlGuard<QQuickTransition> moveTransition;

124

QQmlGuard<QQuickTransition> moveDisplacedTransition;

125

QQmlGuard<QQuickTransition> removeTransition;

126

QQmlGuard<QQuickTransition> removeDisplacedTransition;

127

QQmlGuard<QQuickTransition> displacedTransition;

128

129

private:

130

friend class QQuickItemViewTransitionJob;

131

132

QQuickItemViewTransitionChangeListener *changeListener;

133

bool usePopulateTransition;

134

135

void finishedTransition(QQuickItemViewTransitionJob *job, QQuickItemViewTransitionableItem *item);

};

An item that can be transitioned using QQuickViewTransitionJob.

141

142

class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitionableItem

143

{

144

public:

145

QQuickItemViewTransitionableItem(QQuickItem *i);

146

virtual ~QQuickItemViewTransitionableItem();

qreal itemX() const;

qreal itemY() const;

void moveTo(const QPointF &pos, bool immediate = false);

152

153

bool transitionScheduledOrRunning() const;

154

bool transitionRunning() const;

155

bool isPendingRemoval() const;

156

157

bool prepareTransition(QQuickItemViewTransitioner *transitioner, int index, const QRectF &viewBounds);

158

void startTransition(QQuickItemViewTransitioner *transitioner, int index);

159

160

QPointF nextTransitionTo;

161

QPointF lastMovedTo;

162

QPointF nextTransitionFrom;

163

QQuickItem *item;

164

QQuickItemViewTransitionJob *transition;

165

QQuickItemViewTransitioner::TransitionType nextTransitionType;

166

bool isTransitionTarget : 1;

167

bool nextTransitionToSet : 1;

168

bool nextTransitionFromSet : 1;

169

bool lastMovedToSet : 1;

bool prepared : 1;

private:

friend class QQuickItemViewTransitioner;

174

friend class QQuickItemViewTransitionJob;

175

void setNextTransition(QQuickItemViewTransitioner::TransitionType, bool isTargetItem);

176

bool transitionWillChangePosition() const;

177

void finishedTransition();

178

void resetNextTransitionPos();

179

void clearCurrentScheduledTransition();

180

void stopTransition();

};

class QQuickViewTransitionAttached : public QObject

{

Q_OBJECT

Q_PROPERTY(int index READ index NOTIFY indexChanged)

189

Q_PROPERTY(QQuickItem* item READ item NOTIFY itemChanged)

190

Q_PROPERTY(QPointF destination READ destination NOTIFY destinationChanged)

191

192

Q_PROPERTY(QList<int> targetIndexes READ targetIndexes NOTIFY targetIndexesChanged)

193

Q_PROPERTY(QQmlListProperty<QObject> targetItems READ targetItems NOTIFY targetItemsChanged)

194

195

public:

196

QQuickViewTransitionAttached(QObject *parent);

197

198

int index() const { return m_index; }

executed 8560 times by 3 tests: return m_index;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

8560

199

QQuickItem *item() const { return m_item; }

executed 8566 times by 3 tests: return m_item;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

8566

200

QPointF destination() const { return m_destination; }

never executed: return m_destination;

201

202

QList<int> targetIndexes() const { return m_targetIndexes; }

executed 9018 times by 3 tests: return m_targetIndexes;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

9018

203

QQmlListProperty<QObject> targetItems();

204

205

static QQuickViewTransitionAttached *qmlAttachedProperties(QObject *);

Q_SIGNALS:

void indexChanged();

void itemChanged();

void destinationChanged();

211

212

void targetIndexesChanged();

213

void targetItemsChanged();

214

215

private:

216

friend class QQuickItemViewTransitionJob;

217

QPointF m_destination;

218

QList<int> m_targetIndexes;

219

QList<QObject *> m_targetItems;

QQuickItem *m_item;

int m_index;

};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QQuickViewTransitionAttached)

228

QML_DECLARE_TYPEINFO(QQuickViewTransitionAttached, QML_HAS_ATTACHED_PROPERTIES)

229

230

#endif // QQUICKITEMVIEWTRANSITION_P_P_H

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