qstackedlayout.cpp

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/home/qt/qt5_coco/qt5/qtbase/src/widgets/kernel/qstackedlayout.cpp

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Line Source Count

1 -

2 -

3 -

4 -

5 class QStackedLayoutPrivate : public QLayoutPrivate -

6 { -

7 inline QStackedLayout* q_func() { return static_cast<QStackedLayout *>(q_ptr); } inline const QStackedLayout* q_func() const { return static_cast<const QStackedLayout *>(q_ptr); } friend class QStackedLayout; -

8 public: -

9 QStackedLayoutPrivate() : index(-1), stackingMode(QStackedLayout::StackOne) {} -

10 QLayoutItem* replaceAt(int index, QLayoutItem *newitem) override; -

11 QList<QLayoutItem *> list; -

12 int index; -

13 QStackedLayout::StackingMode stackingMode; -

14 }; -

15 -

16 QLayoutItem* QStackedLayoutPrivate::replaceAt(int idx, QLayoutItem *newitem) -

17 { -

18 QStackedLayout * const q = q_func(); -

if (idx < 0

idx < 0	Description
TRUE	never evaluated
FALSE	never evaluated

|| idx >= list.size()

idx >= list.size()	Description
TRUE	never evaluated
FALSE	never evaluated

|| !newitem

!newitem	Description
TRUE	never evaluated
FALSE	never evaluated

)

return

never executed: return 0;

21 QWidget *wdg = newitem->widget(); -

if (!(__builtin_expect(!!(!

__builtin_expe...(!wdg), false)	Description
TRUE	never evaluated
FALSE	never evaluated

wdg)), false)

__builtin_expe...(!wdg), false)	Description
TRUE	never evaluated
FALSE	never evaluated

) {

23 QMessageLogger(__FILE__, 6167, __PRETTY_FUNCTION__).warning("QStackedLayout::replaceAt: Only widgets can be added"); -

return

never executed: return 0;

25 } -

26 QLayoutItem *orgitem = list.at(idx); -

27 list.replace(idx, newitem); -

if (idx == index

idx == index	Description
TRUE	never evaluated
FALSE	never evaluated

)

q->setCurrentIndex(index);

never executed: q->setCurrentIndex(index);

return

never executed: return orgitem;

orgitem;

never executed: return orgitem;

31 } -

32 QStackedLayout::QStackedLayout() -

33 : QLayout(*new QStackedLayoutPrivate, 0, 0) -

34 { -

35 } -

36 -

37 -

38 -

39 -

40 -

41 -

42 -

43 QStackedLayout::QStackedLayout(QWidget *parent) -

44 : QLayout(*new QStackedLayoutPrivate, 0, parent) -

45 { -

46 } -

47 -

48 -

49 -

50 -

51 -

52 QStackedLayout::QStackedLayout(QLayout *parentLayout) -

53 : QLayout(*new QStackedLayoutPrivate, parentLayout, 0) -

54 { -

55 } -

56 -

57 -

58 -

59 -

60 -

61 QStackedLayout::~QStackedLayout() -

62 { -

63 QStackedLayoutPrivate * const d = d_func(); -

64 qDeleteAll(d->list); -

65 } -

66 int QStackedLayout::addWidget(QWidget *widget) -

67 { -

68 QStackedLayoutPrivate * const d = d_func(); -

69 return insertWidget(d->list.count(), widget); -

70 } -

71 int QStackedLayout::insertWidget(int index, QWidget *widget) -

72 { -

73 QStackedLayoutPrivate * const d = d_func(); -

74 addChildWidget(widget); -

75 index = qMin(index, d->list.count()); -

76 if (index < 0) -

77 index = d->list.count(); -

78 QWidgetItem *wi = QLayoutPrivate::createWidgetItem(this, widget); -

79 d->list.insert(index, wi); -

80 invalidate(); -

81 if (d->index < 0) { -

82 setCurrentIndex(index); -

83 } else { -

84 if (index <= d->index) -

85 ++d->index; -

86 if (d->stackingMode == StackOne) -

87 widget->hide(); -

88 widget->lower(); -

89 } -

90 return index; -

91 } -

92 -

93 -

94 -

95 -

96 QLayoutItem *QStackedLayout::itemAt(int index) const -

97 { -

98 const QStackedLayoutPrivate * const d = d_func(); -

99 return d->list.value(index); -

100 } -

101 -

102 -

103 -

104 -

105 static bool qt_wasDeleted(const QWidget *w) -

106 { -

107 return QWidgetPrivate::get(w)->wasDeleted; -

108 } -

109 -

110 -

111 -

112 -

113 -

114 QLayoutItem *QStackedLayout::takeAt(int index) -

115 { -

116 QStackedLayoutPrivate * const d = d_func(); -

117 if (index <0 || index >= d->list.size()) -

118 return 0; -

119 QLayoutItem *item = d->list.takeAt(index); -

120 if (index == d->index) { -

121 d->index = -1; -

122 if ( d->list.count() > 0 ) { -

123 int newIndex = (index == d->list.count()) ? index-1 : index; -

124 setCurrentIndex(newIndex); -

125 } else { -

126 currentChanged(-1); -

127 } -

128 } else if (index < d->index) { -

129 --d->index; -

130 } -

131 widgetRemoved(index); -

132 if (item->widget() && !qt_wasDeleted(item->widget())) -

133 item->widget()->hide(); -

134 return item; -

135 } -

136 void QStackedLayout::setCurrentIndex(int index) -

137 { -

138 QStackedLayoutPrivate * const d = d_func(); -

139 QWidget *prev = currentWidget(); -

140 QWidget *next = widget(index); -

141 if (!next || next == prev) -

142 return; -

143 -

144 bool reenableUpdates = false; -

145 QWidget *parent = parentWidget(); -

146 -

147 if (parent && parent->updatesEnabled()) { -

148 reenableUpdates = true; -

149 parent->setUpdatesEnabled(false); -

150 } -

151 -

152 QPointer<QWidget> fw = parent ? parent->window()->focusWidget() : 0; -

153 const bool focusWasOnOldPage = fw && (prev && prev->isAncestorOf(fw)); -

154 -

155 if (prev) { -

156 prev->clearFocus(); -

157 if (d->stackingMode == StackOne) -

158 prev->hide(); -

159 } -

160 -

161 d->index = index; -

162 next->raise(); -

163 next->show(); -

164 -

165 -

166 -

167 -

168 if (parent) { -

169 if (focusWasOnOldPage) { -

170 -

171 if (QWidget *nfw = next->focusWidget()) -

172 nfw->setFocus(); -

173 else { -

174 -

175 if (QWidget *i = fw) { -

176 while ((i = i->nextInFocusChain()) != fw) { -

177 if (((i->focusPolicy() & Qt::TabFocus) == Qt::TabFocus) -

178 && !i->focusProxy() && i->isVisibleTo(next) && i->isEnabled() -

179 && next->isAncestorOf(i)) { -

180 i->setFocus(); -

181 break; -

182 } -

183 } -

184 -

185 if (i == fw ) -

186 next->setFocus(); -

187 } -

188 } -

189 } -

190 } -

191 if (reenableUpdates) -

192 parent->setUpdatesEnabled(true); -

193 currentChanged(index); -

194 } -

195 -

196 int QStackedLayout::currentIndex() const -

197 { -

198 const QStackedLayoutPrivate * const d = d_func(); -

199 return d->index; -

200 } -

201 void QStackedLayout::setCurrentWidget(QWidget *widget) -

202 { -

203 int index = indexOf(widget); -

204

if (__builtin_expect(!!(

__builtin_expe...== -1), false)	Description
TRUE	never evaluated
FALSE	never evaluated

index == -1)), false)

__builtin_expe...== -1), false)	Description
TRUE	never evaluated
FALSE	never evaluated

) {

205 QMessageLogger(__FILE__, 367373, __PRETTY_FUNCTION__).warning("QStackedLayout::setCurrentWidget: Widget %p not contained in stack", widget); -

206

return;

never executed: return;

207 } -

208 setCurrentIndex(index); -

209

}

never executed: end of block

210 QWidget *QStackedLayout::currentWidget() const -

211 { -

212 const QStackedLayoutPrivate * const d = d_func(); -

213 return d->index >= 0 ? d->list.at(d->index)->widget() : 0; -

214 } -

215 -

216 -

217 -

218 -

219 -

220 -

221 -

222 QWidget *QStackedLayout::widget(int index) const -

223 { -

224 const QStackedLayoutPrivate * const d = d_func(); -

225 if (index < 0 || index >= d->list.size()) -

226 return 0; -

227 return d->list.at(index)->widget(); -

228 } -

229 -

230 -

231 -

232 -

233 -

234 -

235 -

236 int QStackedLayout::count() const -

237 { -

238 const QStackedLayoutPrivate * const d = d_func(); -

239 return d->list.size(); -

240 } -

241 -

242 -

243 -

244 -

245 -

246 void QStackedLayout::addItem(QLayoutItem *item) -

247 { -

248 QWidget *widget = item->widget(); -

249 if (widget) { 0

addWidget(__builtin_expect(!!(!

__builtin_expe...idget), false)	Description
TRUE	never evaluated
FALSE	never evaluated

widget);

__builtin_expe...idget), false)	Description
TRUE	never evaluated
FALSE	never evaluated

delete item;

__builtin_expe...idget), false)	Description
TRUE	never evaluated
FALSE	never evaluated

} else

__builtin_expe...idget), false)	Description
TRUE	never evaluated
FALSE	never evaluated

__builtin_expe...idget), false)	Description
TRUE	never evaluated
FALSE	never evaluated

), false)

__builtin_expe...idget), false)	Description
TRUE	never evaluated
FALSE	never evaluated

) {

250 QMessageLogger(__FILE__, 423426, __PRETTY_FUNCTION__).warning("QStackedLayout::addItem: Only widgets can be added"); -

251

return;

never executed: return;

252 } -

253 addWidget(widget); -

254 delete item; -

255

}

never executed: end of block

256 -

257 -

258 -

259 -

260 QSize QStackedLayout::sizeHint() const -

261 { -

262 const QStackedLayoutPrivate * const d = d_func(); -

263 QSize s(0, 0); -

264 int n = d->list.count(); -

265 -

266 for (int i = 0; i < n; ++i) -

267 if (QWidget *widget = d->list.at(i)->widget()) { -

268 QSize ws(widget->sizeHint()); -

269 if (widget->sizePolicy().horizontalPolicy() == QSizePolicy::Ignored) -

270 ws.setWidth(0); -

271 if (widget->sizePolicy().verticalPolicy() == QSizePolicy::Ignored) -

272 ws.setHeight(0); -

273 s = s.expandedTo(ws); -

274 } -

275 return s; -

276 } -

277 -

278 -

279 -

280 -

281 QSize QStackedLayout::minimumSize() const -

282 { -

283 const QStackedLayoutPrivate * const d = d_func(); -

284 QSize s(0, 0); -

285 int n = d->list.count(); -

286 -

287 for (int i = 0; i < n; ++i) -

288 if (QWidget *widget = d->list.at(i)->widget()) -

289 s = s.expandedTo(qSmartMinSize(widget)); -

290 return s; -

291 } -

292 -

293 -

294 -

295 -

296 void QStackedLayout::setGeometry(const QRect &rect) -

297 { -

298 QStackedLayoutPrivate * const d = d_func(); -

299 switch (d->stackingMode) { -

300 case StackOne: -

301 if (QWidget *widget = currentWidget()) -

302 widget->setGeometry(rect); -

303 break; -

304 case StackAll: -

305 if (const int n = d->list.count()) -

306 for (int i = 0; i < n; ++i) -

307 if (QWidget *widget = d->list.at(i)->widget()) -

308 widget->setGeometry(rect); -

309 break; -

310 } -

311 } -

312 -

313 -

314 -

315 -

316 bool QStackedLayout::hasHeightForWidth() const -

317 { -

318 const int n = count(); -

319 -

320 for (int i = 0; i < n; ++i) { -

321 if (QLayoutItem *item = itemAt(i)) { -

322 if (item->hasHeightForWidth()) -

323 return true; -

324 } -

325 } -

326 return false; -

327 } -

328 -

329 -

330 -

331 -

332 int QStackedLayout::heightForWidth(int width) const -

333 { -

334 const int n = count(); -

335 -

336 int hfw = 0; -

337 for (int i = 0; i < n; ++i) { -

338 if (QLayoutItem *item = itemAt(i)) { -

339 if (QWidget *w = item->widget()) -

340 -

341 -

342 -

343 -

344 -

345 -

346 hfw = qMax(hfw, w->heightForWidth(width)); -

347 } -

348 } -

349 hfw = qMax(hfw, minimumSize().height()); -

350 return hfw; -

351 } -

352 QStackedLayout::StackingMode QStackedLayout::stackingMode() const -

353 { -

354 const QStackedLayoutPrivate * const d = d_func(); -

355 return d->stackingMode; -

356 } -

357 -

358 void QStackedLayout::setStackingMode(StackingMode stackingMode) -

359 { -

360 QStackedLayoutPrivate * const d = d_func(); -

361 if (d->stackingMode == stackingMode) -

362 return; -

363 d->stackingMode = stackingMode; -

364 -

365 const int n = d->list.count(); -

366 if (n == 0) -

367 return; -

368 -

369 switch (d->stackingMode) { -

370 case StackOne: -

371 if (const int idx = currentIndex()) -

372 for (int i = 0; i < n; ++i) -

373 if (QWidget *widget = d->list.at(i)->widget()) -

374 widget->setVisible(i == idx); -

375 break; -

376 case StackAll: { -

377 QRect geometry; -

378 if (const QWidget *widget = currentWidget()) -

379 geometry = widget->geometry(); -

380 for (int i = 0; i < n; ++i) -

381 if (QWidget *widget = d->list.at(i)->widget()) { -

382 if (!geometry.isNull()) -

383 widget->setGeometry(geometry); -

384 widget->setVisible(true); -

385 } -

386 } -

387 break; -

388 } -

389 } -

390 -

391 -

392 -

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