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qquickitemviewtransition.cpp

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1 /**************************************************************************** -

2 ** -

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 #include "qquickitemviewtransition_p.h" -

41 #include <QtQuick/qquickitem.h> -

42 #include <QtQuick/private/qquicktransition_p.h> -

43 #include <QtQuick/private/qquicktransitionmanager_p_p.h> -

44 -

45 QT_BEGIN_NAMESPACE -

46 -

47 static QList<int> qquickitemviewtransition_emptyIndexes = QList<int>(); -

48 static QList<QObject *> qquickitemviewtransition_emptyTargets = QList<QObject *>(); -

49 -

50 -

51 class QQuickItemViewTransitionJob : public QQuickTransitionManager -

52 { -

53 public: -

54 QQuickItemViewTransitionJob(); -

55 ~QQuickItemViewTransitionJob(); -

56 -

57 void startTransition(QQuickItemViewTransitionableItem *item, int index, QQuickItemViewTransitioner *transitioner, QQuickItemViewTransitioner::TransitionType type, const QPointF &to, bool isTargetItem); -

58 -

59 QQuickItemViewTransitioner *m_transitioner; -

60 QQuickItemViewTransitionableItem *m_item; -

61 QPointF m_toPos; -

62 QQuickItemViewTransitioner::TransitionType m_type; -

63 bool m_isTarget; -

64 bool *m_wasDeleted; -

65 -

66 protected: -

67 void finished() override; -

68 }; -

69 -

70 -

71 QQuickItemViewTransitionJob::QQuickItemViewTransitionJob() -

72 : m_transitioner(nullptr) -

73 , m_item(nullptr) -

74 , m_type(QQuickItemViewTransitioner::NoTransition) -

75 , m_isTarget(false) -

76 , m_wasDeleted(nullptr) -

77 { -

}

executed 10412 times by 4 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

10412

79 -

80 QQuickItemViewTransitionJob::~QQuickItemViewTransitionJob() -

81 { -

if (m_wasDeleted)

m_wasDeleted	Description
TRUE	evaluated 86 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 10326 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

86-10326

*m_wasDeleted = true;

executed 86 times by 2 tests: *m_wasDeleted = true;

Executed by:

tst_qquickgridview
tst_qquicklistview

if (m_transitioner)

m_transitioner	Description
TRUE	evaluated 466 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 9946 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

466-9946

m_transitioner->runningJobs.remove(this);

executed 466 times by 3 tests: m_transitioner->runningJobs.remove(this);

Executed by:

tst_qquickgridview
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466

}

executed 10412 times by 4 tests: end of block

Executed by:

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10412

87 -

88 void QQuickItemViewTransitionJob::startTransition(QQuickItemViewTransitionableItem *item, int index, QQuickItemViewTransitioner *transitioner, QQuickItemViewTransitioner::TransitionType type, const QPointF &to, bool isTargetItem) -

89 { -

if (type == QQuickItemViewTransitioner::NoTransition)

type == QQuick...::NoTransition	Description
TRUE	never evaluated
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-10556

return;

never executed: return;

if (!item) {

!item	Description
TRUE	never evaluated
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-10556

93 qWarning("startTransition(): invalid item"); -

return;

never executed: return;

95 } -

if (!transitioner) {

!transitioner	Description
TRUE	never evaluated
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-10556

97 qWarning("startTransition(): invalid transitioner"); -

return;

never executed: return;

99 } -

100 -

101 QQuickTransition *trans = transitioner->transitionObject(type, isTargetItem); -

102

if (!trans) {

!trans	Description
TRUE	never evaluated
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-10556

103 qWarning("QQuickItemView: invalid view transition!"); -

104

return;

never executed: return;

105 } -

106 -

107 m_item = item; -

108 m_transitioner = transitioner; -

109 m_toPos = to; -

110 m_type = type; -

111 m_isTarget = isTargetItem; -

112 -

113 QQuickViewTransitionAttached *attached = -

114 static_cast<QQuickViewTransitionAttached*>(qmlAttachedPropertiesObject<QQuickViewTransitionAttached>(trans)); -

115

if (attached) {

attached	Description
TRUE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

0-10556

116 attached->m_index = index; -

117 attached->m_item = item->item; -

118 attached->m_destination = to; -

119 attached->m_targetIndexes = m_transitioner->targetIndexes(type); -

120 attached->m_targetItems = m_transitioner->targetItems(type); -

121 emit attached->indexChanged(); -

122 emit attached->itemChanged(); -

123 emit attached->destinationChanged(); -

124 emit attached->targetIndexesChanged(); -

125 emit attached->targetItemsChanged(); -

126

}

executed 10556 times by 4 tests: end of block

Executed by:

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10556

127 -

128 QQuickStateOperation::ActionList actions; -

129 actions << QQuickStateAction(item->item, QLatin1String("x"), QVariant(to.x())); -

130 actions << QQuickStateAction(item->item, QLatin1String("y"), QVariant(to.y())); -

131 -

132 m_transitioner->runningJobs << this; -

133 QQuickTransitionManager::transition(actions, trans, item->item); -

134

}

executed 10556 times by 4 tests: end of block

Executed by:

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10556

135 -

136 void QQuickItemViewTransitionJob::finished() -

137 { -

138 QQuickTransitionManager::finished(); -

139 -

140

if (m_transitioner) {

m_transitioner	Description
TRUE	evaluated 8832 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

0-8832

141 bool deleted = false; -

142 m_wasDeleted = &deleted; -

143 m_transitioner->finishedTransition(this, m_item); -

144

if (deleted)

deleted	Description
TRUE	evaluated 86 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 8746 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

86-8746

145

return;

executed 86 times by 2 tests: return;

Executed by:

tst_qquickgridview
tst_qquicklistview

146 m_wasDeleted = nullptr; -

147 -

148 m_transitioner = nullptr; -

149

}

executed 8746 times by 4 tests: end of block

Executed by:

tst_qquickgridview
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tst_qquickspringanimation

8746

150 -

151 m_item = nullptr; -

152 m_toPos.setX(0); -

153 m_toPos.setY(0); -

154 m_type = QQuickItemViewTransitioner::NoTransition; -

155 m_isTarget = false; -

156

}

executed 8746 times by 4 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

8746

157 -

158 -

159 QQuickItemViewTransitioner::QQuickItemViewTransitioner() -

160 : populateTransition(nullptr) -

161 , addTransition(nullptr), addDisplacedTransition(nullptr) -

162 , moveTransition(nullptr), moveDisplacedTransition(nullptr) -

163 , removeTransition(nullptr), removeDisplacedTransition(nullptr) -

164 , displacedTransition(nullptr) -

165 , changeListener(nullptr) -

166 , usePopulateTransition(false) -

167 { -

168

}

executed 1474 times by 5 tests: end of block

Executed by:

tst_examples
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tst_qquickspringanimation

1474

169 -

170 QQuickItemViewTransitioner::~QQuickItemViewTransitioner() -

171 { -

172 typedef QSet<QQuickItemViewTransitionJob *>::iterator JobIt; -

173 -

174

for (JobIt it = runningJobs.begin(), end = runningJobs.end(); it != end; ++it)

it != end	Description
TRUE	evaluated 1200 times by 1 test Evaluated by: tst_qquickpositioners
FALSE	evaluated 1474 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

1200-1474

175

(*it)->m_transitioner = nullptr;

executed 1200 times by 1 test: (*it)->m_transitioner = nullptr;

Executed by:

tst_qquickpositioners

1200

176

}

executed 1474 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
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1474

177 -

178 bool QQuickItemViewTransitioner::canTransition(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const -

179 { -

180

if (!asTarget

!asTarget	Description
TRUE	evaluated 8610 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 19396 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

8610-19396

181

&& type != NoTransition && type != PopulateTransition

type != NoTransition	Description
TRUE	evaluated 8610 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

type != PopulateTransition	Description
TRUE	evaluated 8610 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

0-8610

182

&& displacedTransition && displacedTransition->enabled()) {

displacedTransition->enabled()	Description
TRUE	evaluated 3700 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 96 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

96-3700

183

return true;

executed 3700 times by 4 tests: return true;

Executed by:

tst_examples
tst_qquickgridview
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3700

184 } -

185 -

186 switch (type) { -

187

case NoTransition:

never executed: case NoTransition:

188

break;

never executed: break;

189

case PopulateTransition:

executed 14454 times by 5 tests: case PopulateTransition:

Executed by:

tst_examples
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14454

190

return usePopulateTransition

executed 14454 times by 5 tests: return usePopulateTransition && populateTransition && populateTransition->enabled();

Executed by:

tst_examples
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14454

191

&& populateTransition && populateTransition->enabled();

executed 14454 times by 5 tests: return usePopulateTransition && populateTransition && populateTransition->enabled();

Executed by:

tst_examples
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14454

192

case AddTransition:

executed 4942 times by 4 tests: case AddTransition:

Executed by:

tst_examples
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4942

193

if (asTarget)

asTarget	Description
TRUE	evaluated 3544 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 1398 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

1398-3544

194

return addTransition && addTransition->enabled();

executed 3544 times by 4 tests: return addTransition && addTransition->enabled();

Executed by:

tst_examples
tst_qquickgridview
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3544

195 else -

196

return addDisplacedTransition && addDisplacedTransition->enabled();

executed 1398 times by 3 tests: return addDisplacedTransition && addDisplacedTransition->enabled();

Executed by:

tst_qquickgridview
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1398

197

case MoveTransition:

executed 3014 times by 5 tests: case MoveTransition:

Executed by:

tst_examples
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3014

198

if (asTarget)

asTarget	Description
TRUE	evaluated 842 times by 3 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview
FALSE	evaluated 2172 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

842-2172

199

return moveTransition && moveTransition->enabled();

executed 842 times by 3 tests: return moveTransition && moveTransition->enabled();

Executed by:

tst_examples
tst_qquickgridview
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842

200 else -

201

return moveDisplacedTransition && moveDisplacedTransition->enabled();

executed 2172 times by 4 tests: return moveDisplacedTransition && moveDisplacedTransition->enabled();

Executed by:

tst_qquickgridview
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2172

202

case RemoveTransition:

executed 1896 times by 4 tests: case RemoveTransition:

Executed by:

tst_examples
tst_qquickgridview
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1896

203

if (asTarget)

asTarget	Description
TRUE	evaluated 556 times by 3 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview
FALSE	evaluated 1340 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickspringanimation

556-1340

204

return removeTransition && removeTransition->enabled();

executed 556 times by 3 tests: return removeTransition && removeTransition->enabled();

Executed by:

tst_examples
tst_qquickgridview
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556

205 else -

206

return removeDisplacedTransition && removeDisplacedTransition->enabled();

executed 1340 times by 3 tests: return removeDisplacedTransition && removeDisplacedTransition->enabled();

Executed by:

tst_qquickgridview
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1340

207 } -

208

return false;

never executed: return false;

209 } -

210 -

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

212 { -

213 item->setNextTransition(type, isTarget); -

214

}

executed 15080 times by 5 tests: end of block

Executed by:

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15080

215 -

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

217 { -

218 switch (type) { -

219

case NoTransition:

never executed: case NoTransition:

220

break;

never executed: break;

221

case PopulateTransition:

executed 1016 times by 4 tests: case PopulateTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
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1016

222

case AddTransition:

executed 3544 times by 4 tests: case AddTransition:

Executed by:

tst_examples
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3544

223 addTransitionIndexes << index; -

224 addTransitionTargets << item->item; -

225

break;

executed 4560 times by 5 tests: break;

Executed by:

tst_examples
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4560

226

case MoveTransition:

executed 340 times by 2 tests: case MoveTransition:

Executed by:

tst_qquickgridview
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340

227 moveTransitionIndexes << index; -

228 moveTransitionTargets << item->item; -

229

break;

executed 340 times by 2 tests: break;

Executed by:

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340

230

case RemoveTransition:

executed 120 times by 2 tests: case RemoveTransition:

Executed by:

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120

231 removeTransitionIndexes << index; -

232 removeTransitionTargets << item->item; -

233

break;

executed 120 times by 2 tests: break;

Executed by:

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120

234 } -

235

}

executed 5020 times by 5 tests: end of block

Executed by:

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5020

236 -

237 void QQuickItemViewTransitioner::resetTargetLists() -

238 { -

239 addTransitionIndexes.clear(); -

240 addTransitionTargets.clear(); -

241 -

242 removeTransitionIndexes.clear(); -

243 removeTransitionTargets.clear(); -

244 -

245 moveTransitionIndexes.clear(); -

246 moveTransitionTargets.clear(); -

247

}

executed 2304 times by 5 tests: end of block

Executed by:

tst_examples
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2304

248 -

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

250 { -

251

if (type == QQuickItemViewTransitioner::NoTransition)

type == QQuick...::NoTransition	Description
TRUE	never evaluated
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-10556

252

return nullptr;

never executed: return nullptr;

253 -

254

if (type == PopulateTransition)

type == PopulateTransition	Description
TRUE	evaluated 1016 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 9540 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

1016-9540

255

asTarget = true; // no separate displaced transition

executed 1016 times by 4 tests: asTarget = true;

Executed by:

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1016

256 -

257 QQuickTransition *trans = nullptr; -

258 switch (type) { -

259

case NoTransition:

never executed: case NoTransition:

260

break;

never executed: break;

261

case PopulateTransition:

executed 1016 times by 4 tests: case PopulateTransition:

Executed by:

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1016

262 trans = populateTransition; -

263

break;

executed 1016 times by 4 tests: break;

Executed by:

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1016

264

case AddTransition:

executed 6182 times by 3 tests: case AddTransition:

Executed by:

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6182

265

trans = asTarget ? addTransition : addDisplacedTransition;

asTarget	Description
TRUE	evaluated 2502 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 3680 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

2502-3680

266

break;

executed 6182 times by 3 tests: break;

Executed by:

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6182

267

case MoveTransition:

executed 2438 times by 3 tests: case MoveTransition:

Executed by:

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2438

268

trans = asTarget ? moveTransition : moveDisplacedTransition;

asTarget	Description
TRUE	evaluated 328 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 2110 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

328-2110

269

break;

executed 2438 times by 3 tests: break;

Executed by:

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2438

270

case RemoveTransition:

executed 920 times by 2 tests: case RemoveTransition:

Executed by:

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920

271

trans = asTarget ? removeTransition : removeDisplacedTransition;

asTarget	Description
TRUE	evaluated 90 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 830 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

90-830

272

break;

executed 920 times by 2 tests: break;

Executed by:

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920

273 } -

274 -

275

if (!asTarget && (!trans || !trans->enabled()))

!asTarget	Description
TRUE	evaluated 6620 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 3936 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

!trans	Description
TRUE	evaluated 3096 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 3524 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

!trans->enabled()	Description
TRUE	evaluated 244 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 3280 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

244-6620

276

trans = displacedTransition;

executed 3340 times by 3 tests: trans = displacedTransition;

Executed by:

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3340

277

if (trans && trans->enabled())

trans	Description
TRUE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

trans->enabled()	Description
TRUE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

0-10556

278

return trans;

executed 10556 times by 4 tests: return trans;

Executed by:

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10556

279

return nullptr;

never executed: return nullptr;

280 } -

281 -

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

283 { -

284 switch (type) { -

285

case NoTransition:

never executed: case NoTransition:

286

break;

never executed: break;

287

case PopulateTransition:

executed 1016 times by 4 tests: case PopulateTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

1016

288

case AddTransition:

executed 6182 times by 3 tests: case AddTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

6182

289

return addTransitionIndexes;

executed 7198 times by 4 tests: return addTransitionIndexes;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

7198

290

case MoveTransition:

executed 2438 times by 3 tests: case MoveTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2438

291

return moveTransitionIndexes;

executed 2438 times by 3 tests: return moveTransitionIndexes;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2438

292

case RemoveTransition:

executed 920 times by 2 tests: case RemoveTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview

920

293

return removeTransitionIndexes;

executed 920 times by 2 tests: return removeTransitionIndexes;

Executed by:

tst_qquickgridview
tst_qquicklistview

920

294 } -

295 -

296

return qquickitemviewtransition_emptyIndexes;

never executed: return qquickitemviewtransition_emptyIndexes;

297 } -

298 -

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

300 { -

301 switch (type) { -

302

case NoTransition:

never executed: case NoTransition:

303

break;

never executed: break;

304

case PopulateTransition:

executed 1016 times by 4 tests: case PopulateTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

1016

305

case AddTransition:

executed 6182 times by 3 tests: case AddTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

6182

306

return addTransitionTargets;

executed 7198 times by 4 tests: return addTransitionTargets;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

7198

307

case MoveTransition:

executed 2438 times by 3 tests: case MoveTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2438

308

return moveTransitionTargets;

executed 2438 times by 3 tests: return moveTransitionTargets;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2438

309

case RemoveTransition:

executed 920 times by 2 tests: case RemoveTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview

920

310

return removeTransitionTargets;

executed 920 times by 2 tests: return removeTransitionTargets;

Executed by:

tst_qquickgridview
tst_qquicklistview

920

311 } -

312 -

313

return qquickitemviewtransition_emptyTargets;

never executed: return qquickitemviewtransition_emptyTargets;

314 } -

315 -

316 void QQuickItemViewTransitioner::finishedTransition(QQuickItemViewTransitionJob *job, QQuickItemViewTransitionableItem *item) -

317 { -

318

if (!runningJobs.contains(job))

!runningJobs.contains(job)	Description
TRUE	never evaluated
FALSE	evaluated 8832 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-8832

319

return;

never executed: return;

320 runningJobs.remove(job); -

321

if (item) {

item	Description
TRUE	evaluated 8832 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	never evaluated

0-8832

322 item->finishedTransition(); -

323

if (changeListener)

changeListener	Description
TRUE	evaluated 4372 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickspringanimation
FALSE	evaluated 4460 times by 1 test Evaluated by: tst_qquickpositioners

4372-4460

324

changeListener->viewItemTransitionFinished(item);

executed 4372 times by 3 tests: changeListener->viewItemTransitionFinished(item);

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickspringanimation

4372

325

}

executed 8832 times by 4 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

8832

326

}

executed 8832 times by 4 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

8832

327 -

328 -

329 QQuickItemViewTransitionableItem::QQuickItemViewTransitionableItem(QQuickItem *i) -

330 : item(i) -

331 , transition(nullptr) -

332 , nextTransitionType(QQuickItemViewTransitioner::NoTransition) -

333 , isTransitionTarget(false) -

334 , nextTransitionToSet(false) -

335 , nextTransitionFromSet(false) -

336 , lastMovedToSet(false) -

337 , prepared(false) -

338 { -

339

}

executed 10162 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

10162

340 -

341 QQuickItemViewTransitionableItem::~QQuickItemViewTransitionableItem() -

342 { -

343 delete transition; -

344

}

executed 10162 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

10162

345 -

346 qreal QQuickItemViewTransitionableItem::itemX() const -

347 { -

348

if (nextTransitionType != QQuickItemViewTransitioner::NoTransition)

nextTransition...::NoTransition	Description
TRUE	evaluated 15900 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 128 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

128-15900

349

return nextTransitionToSet ? nextTransitionTo.x() : item->x();

executed 15900 times by 5 tests: return nextTransitionToSet ? nextTransitionTo.x() : item->x();

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

15900

350

else if (transition && transition->isRunning())

transition	Description
TRUE	evaluated 90 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 38 times by 1 test Evaluated by: tst_qquickgridview

transition->isRunning()	Description
TRUE	evaluated 80 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 10 times by 1 test Evaluated by: tst_qquickgridview

10-90

351

return transition->m_toPos.x();

executed 80 times by 2 tests: return transition->m_toPos.x();

Executed by:

tst_qquickgridview
tst_qquicklistview

352 else -

353

return item->x();

executed 48 times by 1 test: return item->x();

Executed by:

tst_qquickgridview

354 } -

355 -

356 qreal QQuickItemViewTransitionableItem::itemY() const -

357 { -

358 // If item is transitioning to some pos, return that dest pos. -

359 // If item was redirected to some new pos before the current transition finished, -

360 // return that new pos. -

361

if (nextTransitionType != QQuickItemViewTransitioner::NoTransition)

nextTransition...::NoTransition	Description
TRUE	evaluated 28756 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 2197 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

2197-28756

362

return nextTransitionToSet ? nextTransitionTo.y() : item->y();

executed 28756 times by 5 tests: return nextTransitionToSet ? nextTransitionTo.y() : item->y();

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

28756

363

else if (transition && transition->isRunning())

transition	Description
TRUE	evaluated 1542 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 655 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

transition->isRunning()	Description
TRUE	evaluated 1450 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 92 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

92-1542

364

return transition->m_toPos.y();

executed 1450 times by 2 tests: return transition->m_toPos.y();

Executed by:

tst_qquickgridview
tst_qquicklistview

1450

365 else -

366

return item->y();

executed 747 times by 2 tests: return item->y();

Executed by:

tst_qquickgridview
tst_qquicklistview

747

367 } -

368 -

369 void QQuickItemViewTransitionableItem::moveTo(const QPointF &pos, bool immediate) -

370 { -

371

if (!nextTransitionFromSet && nextTransitionType != QQuickItemViewTransitioner::NoTransition) {

!nextTransitionFromSet	Description
TRUE	evaluated 10166 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 4824 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

nextTransition...::NoTransition	Description
TRUE	evaluated 10140 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 26 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

26-10166

372 nextTransitionFrom = item->position(); -

373 nextTransitionFromSet = true; -

374

}

executed 10140 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

10140

375 -

376 lastMovedTo = pos; -

377 lastMovedToSet = true; -

378 -

379

if (immediate || !transitionScheduledOrRunning()) {

immediate	Description
TRUE	evaluated 12 times by 1 test Evaluated by: tst_qquickgridview
FALSE	evaluated 14978 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

!transitionSch...ledOrRunning()	Description
TRUE	never evaluated
FALSE	evaluated 14978 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-14978

380

if (immediate)

immediate	Description
TRUE	evaluated 12 times by 1 test Evaluated by: tst_qquickgridview
FALSE	never evaluated

0-12

381

stopTransition();

executed 12 times by 1 test: stopTransition();

Executed by:

tst_qquickgridview

382 item->setPosition(pos); -

383

} else {

executed 12 times by 1 test: end of block

Executed by:

tst_qquickgridview

384 nextTransitionTo = pos; -

385 nextTransitionToSet = true; -

386

}

executed 14978 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

14978

387 } -

388 -

389 bool QQuickItemViewTransitionableItem::transitionScheduledOrRunning() const -

390 { -

391

return (transition && transition->isRunning())

executed 15988 times by 5 tests: return (transition && transition->isRunning()) || nextTransitionType != QQuickItemViewTransitioner::NoTransition;

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

15988

392

|| nextTransitionType != QQuickItemViewTransitioner::NoTransition;

executed 15988 times by 5 tests: return (transition && transition->isRunning()) || nextTransitionType != QQuickItemViewTransitioner::NoTransition;

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

15988

393 } -

394 -

395 bool QQuickItemViewTransitionableItem::transitionRunning() const -

396 { -

397

return (transition && transition->isRunning());

executed 9908 times by 4 tests: return (transition && transition->isRunning());

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

9908

398 } -

399 -

400 bool QQuickItemViewTransitionableItem::isPendingRemoval() const -

401 { -

402

if (nextTransitionType == QQuickItemViewTransitioner::RemoveTransition)

nextTransition...moveTransition	Description
TRUE	evaluated 50 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 12 times by 1 test Evaluated by: tst_qquickgridview

12-50

403

return isTransitionTarget;

executed 50 times by 2 tests: return isTransitionTarget;

Executed by:

tst_qquickgridview
tst_qquicklistview

404

if (transition && transition->isRunning() && transition->m_type == QQuickItemViewTransitioner::RemoveTransition)

transition	Description
TRUE	evaluated 10 times by 1 test Evaluated by: tst_qquickgridview
FALSE	evaluated 2 times by 1 test Evaluated by: tst_qquickgridview

transition->isRunning()	Description
TRUE	evaluated 10 times by 1 test Evaluated by: tst_qquickgridview
FALSE	never evaluated

transition->m_...moveTransition	Description
TRUE	never evaluated
FALSE	evaluated 10 times by 1 test Evaluated by: tst_qquickgridview

0-10

405

return transition->m_isTarget;

never executed: return transition->m_isTarget;

406

return false;

executed 12 times by 1 test: return false;

Executed by:

tst_qquickgridview

407 } -

408 -

409 bool QQuickItemViewTransitionableItem::prepareTransition(QQuickItemViewTransitioner *transitioner, int index, const QRectF &viewBounds) -

410 { -

411

if (nextTransitionType == QQuickItemViewTransitioner::NoTransition)

nextTransition...::NoTransition	Description
TRUE	evaluated 18 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 14110 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

18-14110

412

return false;

executed 18 times by 2 tests: return false;

Executed by:

tst_qquickgridview
tst_qquicklistview

413 -

414

if (isTransitionTarget) {

isTransitionTarget	Description
TRUE	evaluated 5122 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 8988 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners

5122-8988

415 // If item is not already moving somewhere, set it to not move anywhere. -

416 // This ensures that removed targets don't transition to the default (0,0) and that -

417 // items set for other transition types only transition if they actually move somewhere. -

418

if (!nextTransitionToSet)

!nextTransitionToSet	Description
TRUE	evaluated 344 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 4778 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

344-4778

419

moveTo(item->position());

executed 344 times by 4 tests: moveTo(item->position());

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

344

420

} else {

executed 5122 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

5122

421 // don't start displaced transitions that don't move anywhere -

422

if (!nextTransitionToSet || (nextTransitionFromSet && nextTransitionFrom == nextTransitionTo)) {

!nextTransitionToSet	Description
TRUE	evaluated 728 times by 2 tests Evaluated by: tst_examples tst_qquickpositioners
FALSE	evaluated 8260 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

nextTransitionFromSet	Description
TRUE	evaluated 8260 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	never evaluated

nextTransition...xtTransitionTo	Description
TRUE	evaluated 810 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 7450 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

0-8260

423 clearCurrentScheduledTransition(); -

424

return false;

executed 1538 times by 4 tests: return false;

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

1538

425 } -

426

}

executed 7450 times by 3 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

7450

427 -

428 bool doTransition = false; -

429 -

430 // For move transitions (both target and displaced) and displaced transitions of other -

431 // types, only run the transition if the item is actually moving to another position. -

432 switch (nextTransitionType) { -

433

case QQuickItemViewTransitioner::NoTransition:

never executed: case QQuickItemViewTransitioner::NoTransition:

434 { -

435

return false;

never executed: return false;

436 } -

437

case QQuickItemViewTransitioner::PopulateTransition:

executed 1044 times by 4 tests: case QQuickItemViewTransitioner::PopulateTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

1044

438 { -

439 doTransition = viewBounds.intersects(QRectF(nextTransitionTo.x(), nextTransitionTo.y(), item->width(), item->height())); -

440

break;

executed 1044 times by 4 tests: break;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

1044

441 } -

442

case QQuickItemViewTransitioner::AddTransition:

executed 7822 times by 4 tests: case QQuickItemViewTransitioner::AddTransition:

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

7822

443

case QQuickItemViewTransitioner::RemoveTransition:

executed 1134 times by 2 tests: case QQuickItemViewTransitioner::RemoveTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview

1134

444

if (viewBounds.isNull()) {

viewBounds.isNull()	Description
TRUE	never evaluated
FALSE	evaluated 8956 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners

0-8956

445

if (isTransitionTarget)

isTransitionTarget	Description
TRUE	never evaluated
FALSE	never evaluated

446

doTransition = true;

never executed: doTransition = true;

447 else -

448

doTransition = transitionWillChangePosition();

never executed: doTransition = transitionWillChangePosition();

449

} else if (isTransitionTarget) {

isTransitionTarget	Description
TRUE	evaluated 3726 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 5230 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

3726-5230

450 // For Add targets, do transition if item is moving into visible area -

451 // For Remove targets, do transition if item is currently in visible area -

452

doTransition = (nextTransitionType == QQuickItemViewTransitioner::AddTransition)

(nextTransitio...AddTransition)	Description
TRUE	evaluated 3576 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 150 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

150-3576

453 ? viewBounds.intersects(QRectF(nextTransitionTo.x(), nextTransitionTo.y(), item->width(), item->height())) -

454 : viewBounds.intersects(QRectF(item->x(), item->y(), item->width(), item->height())); -

455

} else {

executed 3726 times by 4 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

3726

456 // do transition if moving from or into visible area -

457

if (viewBounds.intersects(QRectF(item->x(), item->y(), item->width(), item->height()))

viewBounds.int...em->height()))	Description
TRUE	evaluated 4929 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 301 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

301-4929

458

|| viewBounds.intersects(QRectF(nextTransitionTo.x(), nextTransitionTo.y(), item->width(), item->height()))) {

viewBounds.int...em->height()))	Description
TRUE	evaluated 115 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 186 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

115-186

459 doTransition = transitionWillChangePosition(); -

460

}

executed 5044 times by 3 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

5044

461

}

executed 5230 times by 3 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

5230

462

break;

executed 8956 times by 4 tests: break;

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

8956

463

case QQuickItemViewTransitioner::MoveTransition:

executed 2572 times by 3 tests: case QQuickItemViewTransitioner::MoveTransition:

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2572

464 // do transition if moving from or into visible area -

465

if (transitionWillChangePosition()) {

transitionWillChangePosition()	Description
TRUE	evaluated 2572 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	never evaluated

0-2572

466

doTransition = viewBounds.isNull()

viewBounds.isNull()	Description
TRUE	never evaluated
FALSE	evaluated 2572 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

0-2572

467

|| viewBounds.intersects(QRectF(item->x(), item->y(), item->width(), item->height()))

viewBounds.int...em->height()))	Description
TRUE	evaluated 2218 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 354 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

354-2218

468

|| viewBounds.intersects(QRectF(nextTransitionTo.x(), nextTransitionTo.y(), item->width(), item->height()));

viewBounds.int...em->height()))	Description
TRUE	evaluated 276 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 78 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

78-276

469

}

executed 2572 times by 3 tests: end of block

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2572

470

break;

executed 2572 times by 3 tests: break;

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners

2572

471 } -

472 -

473

if (doTransition) {

doTransition	Description
TRUE	evaluated 12218 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 354 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

354-12218

474 // add item to target lists even if canTransition() is false for a target transition, -

475 // since the target lists still need to be filled for displaced transitions -

476

if (isTransitionTarget)

isTransitionTarget	Description
TRUE	evaluated 5020 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 7198 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

5020-7198

477

transitioner->addToTargetLists(nextTransitionType, this, index);

executed 5020 times by 5 tests: transitioner->addToTargetLists(nextTransitionType, this, index);

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

5020

478 doTransition = transitioner->canTransition(nextTransitionType, isTransitionTarget); -

479

}

executed 12218 times by 5 tests: end of block

Executed by:

tst_examples
tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

12218

480 -

481

if (!doTransition) {

!doTransition	Description
TRUE	evaluated 2016 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

2016-10556

482 // if transition type is not valid, the previous transition still has to be -

483 // canceled so that the item can move immediately to the right position -

484 item->setPosition(nextTransitionTo); -

485 stopTransition(); -

486

}

executed 2016 times by 4 tests: end of block

Executed by:

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2016

487 -

488 prepared = true; -

489

return doTransition;

executed 12572 times by 5 tests: return doTransition;

Executed by:

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12572

490 } -

491 -

492 void QQuickItemViewTransitionableItem::startTransition(QQuickItemViewTransitioner *transitioner, int index) -

493 { -

494

if (nextTransitionType == QQuickItemViewTransitioner::NoTransition)

nextTransition...::NoTransition	Description
TRUE	evaluated 3414 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

3414-10556

495

return;

executed 3414 times by 4 tests: return;

Executed by:

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3414

496 -

497

if (!prepared) {

!prepared	Description
TRUE	never evaluated
FALSE	evaluated 10556 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

0-10556

498 qWarning("QQuickViewItem::prepareTransition() not called!"); -

499

return;

never executed: return;

500 } -

501 -

502

if (!transition || transition->m_type != nextTransitionType || transition->m_isTarget != isTransitionTarget) {

!transition	Description
TRUE	evaluated 8226 times by 4 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 2330 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

transition->m_...TransitionType	Description
TRUE	evaluated 2178 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 152 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

transition->m_...ansitionTarget	Description
TRUE	evaluated 8 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 144 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

8-8226

503 delete transition; -

504 transition = new QQuickItemViewTransitionJob; -

505

}

executed 10412 times by 4 tests: end of block

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10412

506 -

507 transition->startTransition(this, index, transitioner, nextTransitionType, nextTransitionTo, isTransitionTarget); -

508 clearCurrentScheduledTransition(); -

509

}

executed 10556 times by 4 tests: end of block

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10556

510 -

511 void QQuickItemViewTransitionableItem::setNextTransition(QQuickItemViewTransitioner::TransitionType type, bool isTargetItem) -

512 { -

513 // Don't reset nextTransitionToSet - once it is set, it cannot be changed -

514 // until the animation finishes since the itemX() and itemY() may be used -

515 // to calculate positions for transitions for other items in the view. -

516 nextTransitionType = type; -

517 isTransitionTarget = isTargetItem; -

518 -

519

if (!nextTransitionFromSet && lastMovedToSet) {

!nextTransitionFromSet	Description
TRUE	evaluated 14288 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation
FALSE	evaluated 792 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview

lastMovedToSet	Description
TRUE	evaluated 3898 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 10390 times by 5 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners tst_qquickspringanimation

792-14288

520 nextTransitionFrom = lastMovedTo; -

521 nextTransitionFromSet = true; -

522

}

executed 3898 times by 3 tests: end of block

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3898

523

}

executed 15080 times by 5 tests: end of block

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15080

524 -

525 bool QQuickItemViewTransitionableItem::transitionWillChangePosition() const -

526 { -

527

if (transitionRunning() && transition->m_toPos != nextTransitionTo)

transitionRunning()	Description
TRUE	evaluated 398 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	evaluated 7218 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

transition->m_...xtTransitionTo	Description
TRUE	evaluated 398 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners
FALSE	never evaluated

0-7218

528

return true;

executed 398 times by 3 tests: return true;

Executed by:

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398

529

if (!nextTransitionFromSet)

!nextTransitionFromSet	Description
TRUE	never evaluated
FALSE	evaluated 7218 times by 3 tests Evaluated by: tst_qquickgridview tst_qquicklistview tst_qquickpositioners

0-7218

530

return false;

never executed: return false;

531

return nextTransitionTo != nextTransitionFrom;

executed 7218 times by 3 tests: return nextTransitionTo != nextTransitionFrom;

Executed by:

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7218

532 } -

533 -

534 void QQuickItemViewTransitionableItem::resetNextTransitionPos() -

535 { -

536 nextTransitionToSet = false; -

537 nextTransitionTo = QPointF(); -

538

}

executed 10860 times by 5 tests: end of block

Executed by:

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10860

539 -

540 void QQuickItemViewTransitionableItem::finishedTransition() -

541 { -

542 resetNextTransitionPos(); -

543

}

executed 8832 times by 4 tests: end of block

Executed by:

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8832

544 -

545 void QQuickItemViewTransitionableItem::clearCurrentScheduledTransition() -

546 { -

547 // Just clear the current scheduled transition - don't touch the nextTransitionTo -

548 // which may have already been set for a previously scheduled transition -

549 -

550 nextTransitionType = QQuickItemViewTransitioner::NoTransition; -

551 isTransitionTarget = false; -

552 prepared = false; -

553 nextTransitionFromSet = false; -

554

}

executed 14122 times by 5 tests: end of block

Executed by:

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14122

555 -

556 void QQuickItemViewTransitionableItem::stopTransition() -

557 { -

558

if (transition)

transition	Description
TRUE	evaluated 336 times by 2 tests Evaluated by: tst_qquickgridview tst_qquicklistview
FALSE	evaluated 1692 times by 4 tests Evaluated by: tst_examples tst_qquickgridview tst_qquicklistview tst_qquickpositioners

336-1692

559

transition->cancel();

executed 336 times by 2 tests: transition->cancel();

Executed by:

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336

560 clearCurrentScheduledTransition(); -

561 resetNextTransitionPos(); -

562

}

executed 2028 times by 4 tests: end of block

Executed by:

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2028

563 -

564 -

565 QQuickViewTransitionAttached::QQuickViewTransitionAttached(QObject *parent) -

566 : QObject(parent), m_item(nullptr), m_index(-1) -

567 { -

568

}

executed 1090 times by 4 tests: end of block

Executed by:

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1090

569 /*! -

570 \qmltype ViewTransition -

571 \instantiates QQuickViewTransitionAttached -

572 \inqmlmodule QtQuick -

573 \ingroup qtquick-transitions-animations -

574 \brief Specifies items under transition in a view. -

575 -

576 With ListView and GridView, it is possible to specify transitions that should be applied whenever -

577 the items in the view change as a result of modifications to the view's model. They both have the -

578 following properties that can be set to the appropriate transitions to be run for various -

579 operations: -

580 -

581 \list -

582 \li \c populate - the transition to apply to the items created initially for the view, or when the model changes -

583 \li \c add - the transition to apply to items that are added to the view after it has been created -

584 \li \c remove - the transition to apply to items that are removed from the view -

585 \li \c move - the transition to apply to items that are moved within the view (i.e. as a result -

586 of a move operation in the model) -

587 \li \c displaced - the generic transition to be applied to any items that are displaced by an -

588 add, move or remove operation -

589 \li \c addDisplaced, \c removeDisplaced and \c moveDisplaced - the transitions to be applied when -

590 items are displaced by add, move, or remove operations, respectively (these override the -

591 generic displaced transition if specified) -

592 \endlist -

593 -

594 For the \l Row, \l Column, \l Grid and \l Flow positioner types, which operate with collections of child -

595 items rather than data models, the following properties are used instead: -

596 -

597 \list -

598 \li \c populate - the transition to apply to items that have been added to the positioner at the -

599 time of its creation -

600 \li \c add - the transition to apply to items that are added to -

601 or reparented to the positioner, or items that have become \l {Item::}{visible} -

602 \li \c move - the transition to apply to items that have moved within the positioner, including -

603 when they are displaced due to the addition or removal of other items, or when items are otherwise -

604 rearranged within the positioner, or when items are repositioned due to the resizing of other -

605 items in the positioner -

606 \endlist -

607 -

608 View transitions have access to a ViewTransition attached property that -

609 provides details of the items that are under transition and the operation that triggered the -

610 transition. Since view transitions are run once per item, these details can be used to customize -

611 each transition for each individual item. -

612 -

613 The ViewTransition attached property provides the following properties specific to the item to -

614 which the transition is applied: -

615 -

616 \list -

617 \li ViewTransition.item - the item that is under transition -

618 \li ViewTransition.index - the index of this item -

619 \li ViewTransition.destination - the (x,y) point to which this item is moving for the relevant view operation -

620 \endlist -

621 -

622 In addition, ViewTransition provides properties specific to the items which are the target -

623 of the operation that triggered the transition: -

624 -

625 \list -

626 \li ViewTransition.targetIndexes - the indexes of the target items -

627 \li ViewTransition.targetItems - the target items themselves -

628 \endlist -

629 -

630 (Note that for the \l Row, \l Column, \l Grid and \l Flow positioner types, the \c move transition only -

631 provides these two additional details when the transition is triggered by the addition of items -

632 to a positioner.) -

633 -

634 View transitions can be written without referring to any of the attributes listed -

635 above. These attributes merely provide extra details that are useful for customising view -

636 transitions. -

637 -

638 Following is an introduction to view transitions and the ways in which the ViewTransition -

639 attached property can be used to augment view transitions. -

640 -

641 -

642 \section2 View Transitions: a Simple Example -

643 -

644 Here is a basic example of the use of view transitions. The view below specifies transitions for -

645 the \c add and \c displaced properties, which will be run when items are added to the view: -

646 -

647 \snippet qml/viewtransitions/viewtransitions-basic.qml 0 -

648 -

649 When the space key is pressed, adding an item to the model, the new item will fade in and -

650 increase in scale over 400 milliseconds as it is added to the view. Also, any item that is -

651 displaced by the addition of a new item will animate to its new position in the view over -

652 400 milliseconds, as specified by the \c displaced transition. -

653 -

654 If five items were inserted in succession at index 0, the effect would be this: -

655 -

656 \image viewtransitions-basic.gif -

657 -

658 Notice that the NumberAnimation objects above do not need to specify a \c target to animate -

659 the appropriate item. Also, the NumberAnimation in the \c addTransition does not need to specify -

660 the \c to value to move the item to its correct position in the view. This is because the view -

661 implicitly sets the \c target and \c to values with the correct item and final item position -

662 values if these properties are not explicitly defined. -

663 -

664 At its simplest, a view transition may just animate an item to its new position following a -

665 view operation, just as the \c displaced transition does above, or animate some item properties, -

666 as in the \c add transition above. Additionally, a view transition may make use of the -

667 ViewTransition attached property to customize animation behavior for different items. Following -

668 are some examples of how this can be achieved. -

669 -

670 -

671 \section2 Using the ViewTransition Attached Property -

672 -

673 As stated, the various ViewTransition properties provide details specific to the individual item -

674 being transitioned as well as the operation that triggered the transition. In the animation above, -

675 five items are inserted in succession at index 0. When the fifth and final insertion takes place, -

676 adding "Item 4" to the view, the \c add transition is run once (for the inserted item) and the -

677 \c displaced transition is run four times (once for each of the four existing items in the view). -

678 -

679 At this point, if we examined the \c displaced transition that was run for the bottom displaced -

680 item ("Item 0"), the ViewTransition property values provided to this transition would be as follows: -

681 -

682 \table -

683 \header -

684 \li Property -

685 \li Value -

686 \li Explanation -

687 \row -

688 \li ViewTransition.item -

689 \li "Item 0" delegate instance -

690 \li The "Item 0" \l Rectangle object itself -

691 \row -

692 \li ViewTransition.index -

693 \li \c int value of 4 -

694 \li The index of "Item 0" within the model following the add operation -

695 \row -

696 \li ViewTransition.destination -

697 \li \l point value of (0, 120) -

698 \li The position that "Item 0" is moving to -

699 \row -

700 \li ViewTransition.targetIndexes -

701 \li \c int array, just contains the integer "0" (zero) -

702 \li The index of "Item 4", the new item added to the view -

703 \row -

704 \li ViewTransition.targetItems -

705 \li object array, just contains the "Item 4" delegate instance -

706 \li The "Item 4" \l Rectangle object - the new item added to the view -

707 \endtable -

708 -

709 The ViewTransition.targetIndexes and ViewTransition.targetItems lists provide the items and -

710 indexes of all delegate instances that are the targets of the relevant operation. For an add -

711 operation, these are all the items that are added into the view; for a remove, these are all -

712 the items removed from the view, and so on. (Note these lists will only contain references to -

713 items that have been created within the view or its cached items; targets that are not within -

714 the visible area of the view or within the item cache will not be accessible.) -

715 -

716 So, while the ViewTransition.item, ViewTransition.index and ViewTransition.destination values -

717 vary for each individual transition that is run, the ViewTransition.targetIndexes and -

718 ViewTransition.targetItems values are the same for every \c add and \c displaced transition -

719 that is triggered by a particular add operation. -

720 -

721 -

722 \section3 Delaying Animations Based on Index -

723 -

724 Since each view transition is run once for each item affected by the transition, the ViewTransition -

725 properties can be used within a transition to define custom behavior for each item's transition. -

726 For example, the ListView in the previous example could use this information to create a ripple-type -

727 effect on the movement of the displaced items. -

728 -

729 This can be achieved by modifying the \c displaced transition so that it delays the animation of -

730 each displaced item based on the difference between its index (provided by ViewTransition.index) -

731 and the first removed index (provided by ViewTransition.targetIndexes): -

732 -

733 \snippet qml/viewtransitions/viewtransitions-delayedbyindex.qml 0 -

734 -

735 Each displaced item delays its animation by an additional 100 milliseconds, producing a subtle -

736 ripple-type effect when items are displaced by the add, like this: -

737 -

738 \image viewtransitions-delayedbyindex.gif -

739 -

740 -

741 \section3 Animating Items to Intermediate Positions -

742 -

743 The ViewTransition.item property gives a reference to the item to which the transition is being -

744 applied. This can be used to access any of the item's attributes, custom \c property values, -

745 and so on. -

746 -

747 Below is a modification of the \c displaced transition from the previous example. It adds a -

748 ParallelAnimation with nested NumberAnimation objects that reference ViewTransition.item to access -

749 each item's \c x and \c y values at the start of their transitions. This allows each item to -

750 animate to an intermediate position relative to its starting point for the transition, before -

751 animating to its final position in the view: -

752 -

753 \snippet qml/viewtransitions/viewtransitions-intermediatemove.qml 0 -

754 -

755 Now, a displaced item will first move to a position of (20, 50) relative to its starting -

756 position, and then to its final, correct position in the view: -

757 -

758 \image viewtransitions-intermediatemove.gif -

759 -

760 Since the final NumberAnimation does not specify a \c to value, the view implicitly sets this -

761 value to the item's final position in the view, and so this last animation will move this item -

762 to the correct place. If the transition requires the final position of the item for some calculation, -

763 this is accessible through ViewTransition.destination. -

764 -

765 Instead of using multiple NumberAnimations, you could use a PathAnimation to animate an item over -

766 a curved path. For example, the \c add transition in the previous example could be augmented with -

767 a PathAnimation as follows: to animate newly added items along a path: -

768 -

769 \snippet qml/viewtransitions/viewtransitions-pathanim.qml 0 -

770 -

771 This animates newly added items along a path. Notice that each path is specified relative to -

772 each item's final destination point, so that items inserted at different indexes start their -

773 paths from different positions: -

774 -

775 \image viewtransitions-pathanim.gif -

776 -

777 -

778 \section2 Handling Interrupted Animations -

779 -

780 A view transition may be interrupted at any time if a different view transition needs to be -

781 applied while the original transition is in progress. For example, say Item A is inserted at index 0 -

782 and undergoes an "add" transition; then, Item B is inserted at index 0 in quick succession before -

783 Item A's transition has finished. Since Item B is inserted before Item A, it will displace Item -

784 A, causing the view to interrupt Item A's "add" transition mid-way and start a "displaced" -

785 transition on Item A instead. -

786 -

787 For simple animations that simply animate an item's movement to its final destination, this -

788 interruption is unlikely to require additional consideration. However, if a transition changes other -

789 properties, this interruption may cause unwanted side effects. Consider the first example on this -

790 page, repeated below for convenience: -

791 -

792 \snippet qml/viewtransitions/viewtransitions-basic.qml 0 -

793 -

794 If multiple items are added in rapid succession, without waiting for a previous transition -

795 to finish, this is the result: -

796 -

797 \image viewtransitions-interruptedbad.gif -

798 -

799 Each newly added item undergoes an \c add transition, but before the transition can finish, -

800 another item is added, displacing the previously added item. Because of this, the \c add -

801 transition on the previously added item is interrupted and a \c displaced transition is -

802 started on the item instead. Due to the interruption, the \c opacity and \c scale animations -

803 have not completed, thus producing items with opacity and scale that are below 1.0. -

804 -

805 To fix this, the \c displaced transition should additionally ensure the item properties are -

806 set to the end values specified in the \c add transition, effectively resetting these values -

807 whenever an item is displaced. In this case, it means setting the item opacity and scale to 1.0: -

808 -

809 \snippet qml/viewtransitions/viewtransitions-interruptedgood.qml 0 -

810 -

811 Now, when an item's \c add transition is interrupted, its opacity and scale are animated to 1.0 -

812 upon displacement, avoiding the erroneous visual effects from before: -

813 -

814 \image viewtransitions-interruptedgood.gif -

815 -

816 The same principle applies to any combination of view transitions. An added item may be moved -

817 before its add transition finishes, or a moved item may be removed before its moved transition -

818 finishes, and so on; so, the rule of thumb is that every transition should handle the same set of -

819 properties. -

820 -

821 -

822 \section2 Restrictions Regarding ScriptAction -

823 -

824 When a view transition is initialized, any property bindings that refer to the ViewTransition -

825 attached property are evaluated in preparation for the transition. Due to the nature of the -

826 internal construction of a view transition, the attributes of the ViewTransition attached -

827 property are only valid for the relevant item when the transition is initialized, and may not be -

828 valid when the transition is actually run. -

829 -

830 Therefore, a ScriptAction within a view transition should not refer to the ViewTransition -

831 attached property, as it may not refer to the expected values at the time that the ScriptAction -

832 is actually invoked. Consider the following example: -

833 -

834 \snippet qml/viewtransitions/viewtransitions-scriptactionbad.qml 0 -

835 -

836 When the space key is pressed, three items are moved from index 5 to index 1. For each moved -

837 item, the \c moveTransition sequence presumably animates the item's color to "yellow", then -

838 animates it to its final position, then changes the item color back to "lightsteelblue" using a -

839 ScriptAction. However, when run, the transition does not produce the intended result: -

840 -

841 \image viewtransitions-scriptactionbad.gif -

842 -

843 Only the last moved item is returned to the "lightsteelblue" color; the others remain yellow. This -

844 is because the ScriptAction is not run until after the transition has already been initialized, by -

845 which time the ViewTransition.item value has changed to refer to a different item; the item that -

846 the script had intended to refer to is not the one held by ViewTransition.item at the time the -

847 ScriptAction is actually invoked. -

848 -

849 In this instance, to avoid this issue, the view could set the property using a PropertyAction -

850 instead: -

851 -

852 \snippet qml/viewtransitions/viewtransitions-scriptactiongood.qml 0 -

853 -

854 When the transition is initialized, the PropertyAction \c target will be set to the respective -

855 ViewTransition.item for the transition and will later run with the correct item target as -

856 expected. -

857 */ -

858 -

859 /*! -

860 \qmlattachedproperty int QtQuick::ViewTransition::index -

861 -

862 This attached property holds the index of the item that is being -

863 transitioned. -

864 -

865 Note that if the item is being moved, this property holds the index that -

866 the item is moving to, not from. -

867 */ -

868 -

869 /*! -

870 \qmlattachedproperty item QtQuick::ViewTransition::item -

871 -

872 This attached property holds the item that is being transitioned. -

873 -

874 \warning This item should not be kept and referred to outside of the transition -

875 as it may become invalid as the view changes. -

876 */ -

877 -

878 /*! -

879 \qmlattachedproperty point QtQuick::ViewTransition::destination -

880 -

881 This attached property holds the final destination position for the transitioned -

882 item within the view. -

883 -

884 This property value is a \l point with \c x and \c y properties. -

885 */ -

886 -

887 /*! -

888 \qmlattachedproperty list QtQuick::ViewTransition::targetIndexes -

889 -

890 This attached property holds a list of the indexes of the items in view -

891 that are the target of the relevant operation. -

892 -

893 The targets are the items that are the subject of the operation. For -

894 an add operation, these are the items being added; for a remove, these -

895 are the items being removed; for a move, these are the items being -

896 moved. -

897 -

898 For example, if the transition was triggered by an insert operation -

899 that added two items at index 1 and 2, this targetIndexes list would -

900 have the value [1,2]. -

901 -

902 \note The targetIndexes list only contains the indexes of items that are actually -

903 in view, or will be in the view once the relevant operation completes. -

904 -

905 \sa QtQuick::ViewTransition::targetItems -

906 */ -

907 -

908 /*! -

909 \qmlattachedproperty list QtQuick::ViewTransition::targetItems -

910 -

911 This attached property holds the list of items in view that are the -

912 target of the relevant operation. -

913 -

914 The targets are the items that are the subject of the operation. For -

915 an add operation, these are the items being added; for a remove, these -

916 are the items being removed; for a move, these are the items being -

917 moved. -

918 -

919 For example, if the transition was triggered by an insert operation -

920 that added two items at index 1 and 2, this targetItems list would -

921 contain these two items. -

922 -

923 \note The targetItems list only contains items that are actually -

924 in view, or will be in the view once the relevant operation completes. -

925 -

926 \warning The objects in this list should not be kept and referred to -

927 outside of the transition as the items may become invalid. The targetItems -

928 are only valid when the Transition is initially created; this also means -

929 they should not be used by ScriptAction objects in the Transition, which are -

930 not evaluated until the transition is run. -

931 -

932 \sa QtQuick::ViewTransition::targetIndexes -

933 */ -

934 QQmlListProperty<QObject> QQuickViewTransitionAttached::targetItems() -

935 { -

936

return QQmlListProperty<QObject>(this, m_targetItems);

executed 9018 times by 3 tests: return QQmlListProperty<QObject>(this, m_targetItems);

Executed by:

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9018

937 } -

938 -

939 QQuickViewTransitionAttached *QQuickViewTransitionAttached::qmlAttachedProperties(QObject *obj) -

940 { -

941

return new QQuickViewTransitionAttached(obj);

executed 1090 times by 4 tests: return new QQuickViewTransitionAttached(obj);

Executed by:

tst_qquickgridview
tst_qquicklistview
tst_qquickpositioners
tst_qquickspringanimation

1090

942 } -

943 -

944 QT_END_NAMESPACE -

945 -

946 #include "moc_qquickitemviewtransition_p.cpp" -

Source code

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