kernel/qstackedlayout.cpp

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40****************************************************************************/ -
41 -
42#include "qstackedlayout.h" -
43#include "qlayout_p.h" -
44 -
45#include <qlist.h> -
46#include <qwidget.h> -
47#include "private/qlayoutengine_p.h" -
48 -
49QT_BEGIN_NAMESPACE -
50 -
51class QStackedLayoutPrivate : public QLayoutPrivate -
52{ -
53 Q_DECLARE_PUBLIC(QStackedLayout) -
54public: -
55 QStackedLayoutPrivate() : index(-1), stackingMode(QStackedLayout::StackOne) {}
executed: }
Execution Count:238
238
56 QList<QLayoutItem *> list; -
57 int index; -
58 QStackedLayout::StackingMode stackingMode; -
59}; -
60 -
61/*! -
62 \class QStackedLayout -
63 -
64 \brief The QStackedLayout class provides a stack of widgets where -
65 only one widget is visible at a time. -
66 -
67 \ingroup geomanagement -
68 \inmodule QtWidgets -
69 -
70 QStackedLayout can be used to create a user interface similar to -
71 the one provided by QTabWidget. There is also a convenience -
72 QStackedWidget class built on top of QStackedLayout. -
73 -
74 A QStackedLayout can be populated with a number of child widgets -
75 ("pages"). For example: -
76 -
77 \snippet qstackedlayout/main.cpp 0 -
78 \codeline -
79 \snippet qstackedlayout/main.cpp 2 -
80 \snippet qstackedlayout/main.cpp 3 -
81 -
82 QStackedLayout provides no intrinsic means for the user to switch -
83 page. This is typically done through a QComboBox or a QListWidget -
84 that stores the titles of the QStackedLayout's pages. For -
85 example: -
86 -
87 \snippet qstackedlayout/main.cpp 1 -
88 -
89 When populating a layout, the widgets are added to an internal -
90 list. The indexOf() function returns the index of a widget in that -
91 list. The widgets can either be added to the end of the list using -
92 the addWidget() function, or inserted at a given index using the -
93 insertWidget() function. The removeWidget() function removes the -
94 widget at the given index from the layout. The number of widgets -
95 contained in the layout, can be obtained using the count() -
96 function. -
97 -
98 The widget() function returns the widget at a given index -
99 position. The index of the widget that is shown on screen is given -
100 by currentIndex() and can be changed using setCurrentIndex(). In a -
101 similar manner, the currently shown widget can be retrieved using -
102 the currentWidget() function, and altered using the -
103 setCurrentWidget() function. -
104 -
105 Whenever the current widget in the layout changes or a widget is -
106 removed from the layout, the currentChanged() and widgetRemoved() -
107 signals are emitted respectively. -
108 -
109 \sa QStackedWidget, QTabWidget -
110*/ -
111 -
112/*! -
113 \fn void QStackedLayout::currentChanged(int index) -
114 -
115 This signal is emitted whenever the current widget in the layout -
116 changes. The \a index specifies the index of the new current -
117 widget, or -1 if there isn't a new one (for example, if there -
118 are no widgets in the QStackedLayout) -
119 -
120 \sa currentWidget(), setCurrentWidget() -
121*/ -
122 -
123/*! -
124 \fn void QStackedLayout::widgetRemoved(int index) -
125 -
126 This signal is emitted whenever a widget is removed from the -
127 layout. The widget's \a index is passed as parameter. -
128 -
129 \sa removeWidget() -
130*/ -
131 -
132/*! -
133 \fn QWidget *QStackedLayout::widget() -
134 \internal -
135*/ -
136 -
137/*! -
138 Constructs a QStackedLayout with no parent. -
139 -
140 This QStackedLayout must be installed on a widget later on to -
141 become effective. -
142 -
143 \sa addWidget(), insertWidget() -
144*/ -
145QStackedLayout::QStackedLayout() -
146 : QLayout(*new QStackedLayoutPrivate, 0, 0) -
147{ -
148}
executed: }
Execution Count:2
2
149 -
150/*! -
151 Constructs a new QStackedLayout with the given \a parent. -
152 -
153 This layout will install itself on the \a parent widget and -
154 manage the geometry of its children. -
155*/ -
156QStackedLayout::QStackedLayout(QWidget *parent) -
157 : QLayout(*new QStackedLayoutPrivate, 0, parent) -
158{ -
159}
executed: }
Execution Count:236
236
160 -
161/*! -
162 Constructs a new QStackedLayout and inserts it into -
163 the given \a parentLayout. -
164*/ -
165QStackedLayout::QStackedLayout(QLayout *parentLayout) -
166 : QLayout(*new QStackedLayoutPrivate, parentLayout, 0) -
167{ -
168}
never executed: }
0
169 -
170/*! -
171 Destroys this QStackedLayout. Note that the layout's widgets are -
172 \e not destroyed. -
173*/ -
174QStackedLayout::~QStackedLayout() -
175{ -
176 Q_D(QStackedLayout);
executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
177 qDeleteAll(d->list);
executed (the execution status of this line is deduced): qDeleteAll(d->list);
-
178}
executed: }
Execution Count:234
234
179 -
180/*! -
181 Adds the given \a widget to the end of this layout and returns the -
182 index position of the \a widget. -
183 -
184 If the QStackedLayout is empty before this function is called, -
185 the given \a widget becomes the current widget. -
186 -
187 \sa insertWidget(), removeWidget(), setCurrentWidget() -
188*/ -
189int QStackedLayout::addWidget(QWidget *widget) -
190{ -
191 Q_D(QStackedLayout);
executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
192 return insertWidget(d->list.count(), widget);
executed: return insertWidget(d->list.count(), widget);
Execution Count:397
397
193} -
194 -
195/*! -
196 Inserts the given \a widget at the given \a index in this -
197 QStackedLayout. If \a index is out of range, the widget is -
198 appended (in which case it is the actual index of the \a widget -
199 that is returned). -
200 -
201 If the QStackedLayout is empty before this function is called, the -
202 given \a widget becomes the current widget. -
203 -
204 Inserting a new widget at an index less than or equal to the current index -
205 will increment the current index, but keep the current widget. -
206 -
207 \sa addWidget(), removeWidget(), setCurrentWidget() -
208*/ -
209int QStackedLayout::insertWidget(int index, QWidget *widget) -
210{ -
211 Q_D(QStackedLayout);
executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
212 addChildWidget(widget);
executed (the execution status of this line is deduced): addChildWidget(widget);
-
213 index = qMin(index, d->list.count());
executed (the execution status of this line is deduced): index = qMin(index, d->list.count());
-
214 if (index < 0)
evaluated: index < 0
TRUEFALSE
yes
Evaluation Count:53
yes
Evaluation Count:398
53-398
215 index = d->list.count();
executed: index = d->list.count();
Execution Count:53
53
216 QWidgetItem *wi = QLayoutPrivate::createWidgetItem(this, widget);
executed (the execution status of this line is deduced): QWidgetItem *wi = QLayoutPrivate::createWidgetItem(this, widget);
-
217 d->list.insert(index, wi);
executed (the execution status of this line is deduced): d->list.insert(index, wi);
-
218 invalidate();
executed (the execution status of this line is deduced): invalidate();
-
219 if (d->index < 0) {
evaluated: d->index < 0
TRUEFALSE
yes
Evaluation Count:228
yes
Evaluation Count:223
223-228
220 setCurrentIndex(index);
executed (the execution status of this line is deduced): setCurrentIndex(index);
-
221 } else {
executed: }
Execution Count:228
228
222 if (index <= d->index)
evaluated: index <= d->index
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:222
1-222
223 ++d->index;
executed: ++d->index;
Execution Count:1
1
224 if (d->stackingMode == StackOne)
partially evaluated: d->stackingMode == StackOne
TRUEFALSE
yes
Evaluation Count:223
no
Evaluation Count:0
0-223
225 widget->hide();
executed: widget->hide();
Execution Count:223
223
226 widget->lower();
executed (the execution status of this line is deduced): widget->lower();
-
227 }
executed: }
Execution Count:223
223
228 return index;
executed: return index;
Execution Count:451
451
229} -
230 -
231/*! -
232 \reimp -
233*/ -
234QLayoutItem *QStackedLayout::itemAt(int index) const -
235{ -
236 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
237 return d->list.value(index);
executed: return d->list.value(index);
Execution Count:2103
2103
238} -
239 -
240// Code that enables proper handling of the case that takeAt() is -
241// called somewhere inside QObject destructor (can't call hide() -
242// on the object then) -
243 -
244class QtFriendlyLayoutWidget : public QWidget -
245{ -
246public: -
247 inline bool wasDeleted() const { return d_ptr->wasDeleted; }
executed: return d_ptr->wasDeleted;
Execution Count:33
33
248}; -
249 -
250static bool qt_wasDeleted(const QWidget *w) { return static_cast<const QtFriendlyLayoutWidget*>(w)->wasDeleted(); }
executed: return static_cast<const QtFriendlyLayoutWidget*>(w)->wasDeleted();
Execution Count:33
33
251 -
252 -
253/*! -
254 \reimp -
255*/ -
256QLayoutItem *QStackedLayout::takeAt(int index) -
257{ -
258 Q_D(QStackedLayout);
executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
259 if (index <0 || index >= d->list.size())
partially evaluated: index <0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:33
partially evaluated: index >= d->list.size()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:33
0-33
260 return 0;
never executed: return 0;
0
261 QLayoutItem *item = d->list.takeAt(index);
executed (the execution status of this line is deduced): QLayoutItem *item = d->list.takeAt(index);
-
262 if (index == d->index) {
evaluated: index == d->index
TRUEFALSE
yes
Evaluation Count:25
yes
Evaluation Count:8
8-25
263 d->index = -1;
executed (the execution status of this line is deduced): d->index = -1;
-
264 if ( d->list.count() > 0 ) {
evaluated: d->list.count() > 0
TRUEFALSE
yes
Evaluation Count:9
yes
Evaluation Count:16
9-16
265 int newIndex = (index == d->list.count()) ? index-1 : index;
evaluated: (index == d->list.count())
TRUEFALSE
yes
Evaluation Count:4
yes
Evaluation Count:5
4-5
266 setCurrentIndex(newIndex);
executed (the execution status of this line is deduced): setCurrentIndex(newIndex);
-
267 } else {
executed: }
Execution Count:9
9
268 emit currentChanged(-1);
executed (the execution status of this line is deduced): currentChanged(-1);
-
269 }
executed: }
Execution Count:16
16
270 } else if (index < d->index) {
evaluated: index < d->index
TRUEFALSE
yes
Evaluation Count:7
yes
Evaluation Count:1
1-7
271 --d->index;
executed (the execution status of this line is deduced): --d->index;
-
272 }
executed: }
Execution Count:7
7
273 emit widgetRemoved(index);
executed (the execution status of this line is deduced): widgetRemoved(index);
-
274 if (item->widget() && !qt_wasDeleted(item->widget()))
partially evaluated: item->widget()
TRUEFALSE
yes
Evaluation Count:33
no
Evaluation Count:0
evaluated: !qt_wasDeleted(item->widget())
TRUEFALSE
yes
Evaluation Count:28
yes
Evaluation Count:5
0-33
275 item->widget()->hide();
executed: item->widget()->hide();
Execution Count:28
28
276 return item;
executed: return item;
Execution Count:33
33
277} -
278 -
279/*! -
280 \property QStackedLayout::currentIndex -
281 \brief the index position of the widget that is visible -
282 -
283 The current index is -1 if there is no current widget. -
284 -
285 \sa currentWidget(), indexOf() -
286*/ -
287void QStackedLayout::setCurrentIndex(int index) -
288{ -
289 Q_D(QStackedLayout);
executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
290 QWidget *prev = currentWidget();
executed (the execution status of this line is deduced): QWidget *prev = currentWidget();
-
291 QWidget *next = widget(index);
executed (the execution status of this line is deduced): QWidget *next = widget(index);
-
292 if (!next || next == prev)
evaluated: !next
TRUEFALSE
yes
Evaluation Count:6
yes
Evaluation Count:635
evaluated: next == prev
TRUEFALSE
yes
Evaluation Count:355
yes
Evaluation Count:280
6-635
293 return;
executed: return;
Execution Count:361
361
294 -
295 bool reenableUpdates = false;
executed (the execution status of this line is deduced): bool reenableUpdates = false;
-
296 QWidget *parent = parentWidget();
executed (the execution status of this line is deduced): QWidget *parent = parentWidget();
-
297 -
298 if (parent && parent->updatesEnabled()) {
evaluated: parent
TRUEFALSE
yes
Evaluation Count:278
yes
Evaluation Count:2
partially evaluated: parent->updatesEnabled()
TRUEFALSE
yes
Evaluation Count:278
no
Evaluation Count:0
0-278
299 reenableUpdates = true;
executed (the execution status of this line is deduced): reenableUpdates = true;
-
300 parent->setUpdatesEnabled(false);
executed (the execution status of this line is deduced): parent->setUpdatesEnabled(false);
-
301 }
executed: }
Execution Count:278
278
302 -
303 QPointer<QWidget> fw = parent ? parent->window()->focusWidget() : 0;
evaluated: parent
TRUEFALSE
yes
Evaluation Count:278
yes
Evaluation Count:2
2-278
304 const bool focusWasOnOldPage = fw && (prev && prev->isAncestorOf(fw));
evaluated: fw
TRUEFALSE
yes
Evaluation Count:24
yes
Evaluation Count:256
evaluated: prev
TRUEFALSE
yes
Evaluation Count:23
yes
Evaluation Count:1
evaluated: prev->isAncestorOf(fw)
TRUEFALSE
yes
Evaluation Count:7
yes
Evaluation Count:16
1-256
305 -
306 if (prev) {
evaluated: prev
TRUEFALSE
yes
Evaluation Count:43
yes
Evaluation Count:237
43-237
307 prev->clearFocus();
executed (the execution status of this line is deduced): prev->clearFocus();
-
308 if (d->stackingMode == StackOne)
partially evaluated: d->stackingMode == StackOne
TRUEFALSE
yes
Evaluation Count:43
no
Evaluation Count:0
0-43
309 prev->hide();
executed: prev->hide();
Execution Count:43
43
310 }
executed: }
Execution Count:43
43
311 -
312 d->index = index;
executed (the execution status of this line is deduced): d->index = index;
-
313 next->raise();
executed (the execution status of this line is deduced): next->raise();
-
314 next->show();
executed (the execution status of this line is deduced): next->show();
-
315 -
316 // try to move focus onto the incoming widget if focus -
317 // was somewhere on the outgoing widget. -
318 -
319 if (parent) {
evaluated: parent
TRUEFALSE
yes
Evaluation Count:278
yes
Evaluation Count:2
2-278
320 if (focusWasOnOldPage) {
evaluated: focusWasOnOldPage
TRUEFALSE
yes
Evaluation Count:7
yes
Evaluation Count:271
7-271
321 // look for the best focus widget we can find -
322 if (QWidget *nfw = next->focusWidget())
evaluated: QWidget *nfw = next->focusWidget()
TRUEFALSE
yes
Evaluation Count:3
yes
Evaluation Count:4
3-4
323 nfw->setFocus();
executed: nfw->setFocus();
Execution Count:3
3
324 else { -
325 // second best: first child widget in the focus chain -
326 if (QWidget *i = fw) {
partially evaluated: QWidget *i = fw
TRUEFALSE
yes
Evaluation Count:4
no
Evaluation Count:0
0-4
327 while ((i = i->nextInFocusChain()) != fw) {
evaluated: (i = i->nextInFocusChain()) != fw
TRUEFALSE
yes
Evaluation Count:51
yes
Evaluation Count:1
1-51
328 if (((i->focusPolicy() & Qt::TabFocus) == Qt::TabFocus)
evaluated: ((i->focusPolicy() & Qt::TabFocus) == Qt::TabFocus)
TRUEFALSE
yes
Evaluation Count:16
yes
Evaluation Count:35
16-35
329 && !i->focusProxy() && i->isVisibleTo(next) && i->isEnabled()
evaluated: !i->focusProxy()
TRUEFALSE
yes
Evaluation Count:14
yes
Evaluation Count:2
evaluated: i->isVisibleTo(next)
TRUEFALSE
yes
Evaluation Count:5
yes
Evaluation Count:9
partially evaluated: i->isEnabled()
TRUEFALSE
yes
Evaluation Count:5
no
Evaluation Count:0
0-14
330 && next->isAncestorOf(i)) {
evaluated: next->isAncestorOf(i)
TRUEFALSE
yes
Evaluation Count:3
yes
Evaluation Count:2
2-3
331 i->setFocus();
executed (the execution status of this line is deduced): i->setFocus();
-
332 break;
executed: break;
Execution Count:3
3
333 } -
334 }
executed: }
Execution Count:48
48
335 // third best: incoming widget -
336 if (i == fw )
evaluated: i == fw
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
337 next->setFocus();
executed: next->setFocus();
Execution Count:1
1
338 }
executed: }
Execution Count:4
4
339 }
executed: }
Execution Count:4
4
340 } -
341 }
executed: }
Execution Count:278
278
342 if (reenableUpdates)
evaluated: reenableUpdates
TRUEFALSE
yes
Evaluation Count:278
yes
Evaluation Count:2
2-278
343 parent->setUpdatesEnabled(true);
executed: parent->setUpdatesEnabled(true);
Execution Count:278
278
344 emit currentChanged(index);
executed (the execution status of this line is deduced): currentChanged(index);
-
345}
executed: }
Execution Count:280
280
346 -
347int QStackedLayout::currentIndex() const -
348{ -
349 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
350 return d->index;
executed: return d->index;
Execution Count:19
19
351} -
352 -
353 -
354/*! -
355 \fn void QStackedLayout::setCurrentWidget(QWidget *widget) -
356 -
357 Sets the current widget to be the specified \a widget. The new -
358 current widget must already be contained in this stacked layout. -
359 -
360 \sa setCurrentIndex(), currentWidget() -
361 */ -
362void QStackedLayout::setCurrentWidget(QWidget *widget) -
363{ -
364 int index = indexOf(widget);
executed (the execution status of this line is deduced): int index = indexOf(widget);
-
365 if (index == -1) {
evaluated: index == -1
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:132
1-132
366 qWarning("QStackedLayout::setCurrentWidget: Widget %p not contained in stack", widget);
executed (the execution status of this line is deduced): QMessageLogger("kernel/qstackedlayout.cpp", 366, __PRETTY_FUNCTION__).warning("QStackedLayout::setCurrentWidget: Widget %p not contained in stack", widget);
-
367 return;
executed: return;
Execution Count:1
1
368 } -
369 setCurrentIndex(index);
executed (the execution status of this line is deduced): setCurrentIndex(index);
-
370}
executed: }
Execution Count:132
132
371 -
372 -
373/*! -
374 Returns the current widget, or 0 if there are no widgets in this -
375 layout. -
376 -
377 \sa currentIndex(), setCurrentWidget() -
378*/ -
379QWidget *QStackedLayout::currentWidget() const -
380{ -
381 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
382 return d->index >= 0 ? d->list.at(d->index)->widget() : 0;
executed: return d->index >= 0 ? d->list.at(d->index)->widget() : 0;
Execution Count:1078
1078
383} -
384 -
385/*! -
386 Returns the widget at the given \a index, or 0 if there is no -
387 widget at the given position. -
388 -
389 \sa currentWidget(), indexOf() -
390*/ -
391QWidget *QStackedLayout::widget(int index) const -
392{ -
393 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
394 if (index < 0 || index >= d->list.size())
evaluated: index < 0
TRUEFALSE
yes
Evaluation Count:5
yes
Evaluation Count:689
evaluated: index >= d->list.size()
TRUEFALSE
yes
Evaluation Count:4
yes
Evaluation Count:685
4-689
395 return 0;
executed: return 0;
Execution Count:9
9
396 return d->list.at(index)->widget();
executed: return d->list.at(index)->widget();
Execution Count:685
685
397} -
398 -
399/*! -
400 \property QStackedLayout::count -
401 \brief the number of widgets contained in the layout -
402 -
403 \sa currentIndex(), widget() -
404*/ -
405int QStackedLayout::count() const -
406{ -
407 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
408 return d->list.size();
executed: return d->list.size();
Execution Count:866
866
409} -
410 -
411 -
412/*! -
413 \reimp -
414*/ -
415void QStackedLayout::addItem(QLayoutItem *item) -
416{ -
417 QWidget *widget = item->widget();
never executed (the execution status of this line is deduced): QWidget *widget = item->widget();
-
418 if (widget) {
never evaluated: widget
0
419 addWidget(widget);
never executed (the execution status of this line is deduced): addWidget(widget);
-
420 delete item;
never executed (the execution status of this line is deduced): delete item;
-
421 } else {
never executed: }
0
422 qWarning("QStackedLayout::addItem: Only widgets can be added");
never executed (the execution status of this line is deduced): QMessageLogger("kernel/qstackedlayout.cpp", 422, __PRETTY_FUNCTION__).warning("QStackedLayout::addItem: Only widgets can be added");
-
423 }
never executed: }
0
424} -
425 -
426/*! -
427 \reimp -
428*/ -
429QSize QStackedLayout::sizeHint() const -
430{ -
431 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
432 QSize s(0, 0);
executed (the execution status of this line is deduced): QSize s(0, 0);
-
433 int n = d->list.count();
executed (the execution status of this line is deduced): int n = d->list.count();
-
434 -
435 for (int i = 0; i < n; ++i)
evaluated: i < n
TRUEFALSE
yes
Evaluation Count:542
yes
Evaluation Count:295
295-542
436 if (QWidget *widget = d->list.at(i)->widget()) {
partially evaluated: QWidget *widget = d->list.at(i)->widget()
TRUEFALSE
yes
Evaluation Count:542
no
Evaluation Count:0
0-542
437 QSize ws(widget->sizeHint());
executed (the execution status of this line is deduced): QSize ws(widget->sizeHint());
-
438 if (widget->sizePolicy().horizontalPolicy() == QSizePolicy::Ignored)
partially evaluated: widget->sizePolicy().horizontalPolicy() == QSizePolicy::Ignored
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:542
0-542
439 ws.setWidth(0);
never executed: ws.setWidth(0);
0
440 if (widget->sizePolicy().verticalPolicy() == QSizePolicy::Ignored)
partially evaluated: widget->sizePolicy().verticalPolicy() == QSizePolicy::Ignored
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:542
0-542
441 ws.setHeight(0);
never executed: ws.setHeight(0);
0
442 s = s.expandedTo(ws);
executed (the execution status of this line is deduced): s = s.expandedTo(ws);
-
443 }
executed: }
Execution Count:542
542
444 return s;
executed: return s;
Execution Count:295
295
445} -
446 -
447/*! -
448 \reimp -
449*/ -
450QSize QStackedLayout::minimumSize() const -
451{ -
452 Q_D(const QStackedLayout);
executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
453 QSize s(0, 0);
executed (the execution status of this line is deduced): QSize s(0, 0);
-
454 int n = d->list.count();
executed (the execution status of this line is deduced): int n = d->list.count();
-
455 -
456 for (int i = 0; i < n; ++i)
evaluated: i < n
TRUEFALSE
yes
Evaluation Count:607
yes
Evaluation Count:342
342-607
457 if (QWidget *widget = d->list.at(i)->widget())
partially evaluated: QWidget *widget = d->list.at(i)->widget()
TRUEFALSE
yes
Evaluation Count:607
no
Evaluation Count:0
0-607
458 s = s.expandedTo(qSmartMinSize(widget));
executed: s = s.expandedTo(qSmartMinSize(widget));
Execution Count:607
607
459 return s;
executed: return s;
Execution Count:342
342
460} -
461 -
462/*! -
463 \reimp -
464*/ -
465void QStackedLayout::setGeometry(const QRect &rect) -
466{ -
467 Q_D(QStackedLayout);
executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
468 switch (d->stackingMode) { -
469 case StackOne: -
470 if (QWidget *widget = currentWidget())
evaluated: QWidget *widget = currentWidget()
TRUEFALSE
yes
Evaluation Count:180
yes
Evaluation Count:12
12-180
471 widget->setGeometry(rect);
executed: widget->setGeometry(rect);
Execution Count:180
180
472 break;
executed: break;
Execution Count:192
192
473 case StackAll: -
474 if (const int n = d->list.count())
never evaluated: const int n = d->list.count()
0
475 for (int i = 0; i < n; ++i)
never evaluated: i < n
0
476 if (QWidget *widget = d->list.at(i)->widget())
never evaluated: QWidget *widget = d->list.at(i)->widget()
0
477 widget->setGeometry(rect);
never executed: widget->setGeometry(rect);
0
478 break;
never executed: break;
0
479 } -
480}
executed: }
Execution Count:192
192
481 -
482/*! -
483 \reimp -
484*/ -
485bool QStackedLayout::hasHeightForWidth() const -
486{ -
487 const int n = count();
executed (the execution status of this line is deduced): const int n = count();
-
488 -
489 for (int i = 0; i < n; ++i) {
evaluated: i < n
TRUEFALSE
yes
Evaluation Count:1309
yes
Evaluation Count:629
629-1309
490 if (QLayoutItem *item = itemAt(i)) {
partially evaluated: QLayoutItem *item = itemAt(i)
TRUEFALSE
yes
Evaluation Count:1309
no
Evaluation Count:0
0-1309
491 if (item->hasHeightForWidth())
evaluated: item->hasHeightForWidth()
TRUEFALSE
yes
Evaluation Count:102
yes
Evaluation Count:1207
102-1207
492 return true;
executed: return true;
Execution Count:102
102
493 }
executed: }
Execution Count:1207
1207
494 }
executed: }
Execution Count:1207
1207
495 return false;
executed: return false;
Execution Count:629
629
496} -
497 -
498/*! -
499 \reimp -
500*/ -
501int QStackedLayout::heightForWidth(int width) const -
502{ -
503 const int n = count();
executed (the execution status of this line is deduced): const int n = count();
-
504 -
505 int hfw = 0;
executed (the execution status of this line is deduced): int hfw = 0;
-
506 for (int i = 0; i < n; ++i) {
evaluated: i < n
TRUEFALSE
yes
Evaluation Count:47
yes
Evaluation Count:44
44-47
507 if (QLayoutItem *item = itemAt(i)) {
partially evaluated: QLayoutItem *item = itemAt(i)
TRUEFALSE
yes
Evaluation Count:47
no
Evaluation Count:0
0-47
508 if (QWidget *w = item->widget())
partially evaluated: QWidget *w = item->widget()
TRUEFALSE
yes
Evaluation Count:47
no
Evaluation Count:0
0-47
509 /* -
510 Note: Does not query the layout item, but bypasses it and asks the widget -
511 directly. This is consistent with how QStackedLayout::sizeHint() is -
512 implemented. This also avoids an issue where QWidgetItem::heightForWidth() -
513 returns -1 if the widget is hidden. -
514 */ -
515 hfw = qMax(hfw, w->heightForWidth(width));
executed: hfw = qMax(hfw, w->heightForWidth(width));
Execution Count:47
47
516 }
executed: }
Execution Count:47
47
517 }
executed: }
Execution Count:47
47
518 hfw = qMax(hfw, minimumSize().height());
executed (the execution status of this line is deduced): hfw = qMax(hfw, minimumSize().height());
-
519 return hfw;
executed: return hfw;
Execution Count:44
44
520} -
521 -
522/*! -
523 \enum QStackedLayout::StackingMode -
524 \since 4.4 -
525 -
526 This enum specifies how the layout handles its child widgets -
527 regarding their visibility. -
528 -
529 \value StackOne -
530 Only the current widget is visible. This is the default. -
531 -
532 \value StackAll -
533 All widgets are visible. The current widget is merely raised. -
534*/ -
535 -
536 -
537/*! -
538 \property QStackedLayout::stackingMode -
539 \brief determines the way visibility of child widgets are handled. -
540 \since 4.4 -
541 -
542 The default value is StackOne. Setting the property to StackAll -
543 allows you to make use of the layout for overlay widgets -
544 that do additional drawing on top of other widgets, for example, -
545 graphical editors. -
546*/ -
547 -
548QStackedLayout::StackingMode QStackedLayout::stackingMode() const -
549{ -
550 Q_D(const QStackedLayout);
never executed (the execution status of this line is deduced): const QStackedLayoutPrivate * const d = d_func();
-
551 return d->stackingMode;
never executed: return d->stackingMode;
0
552} -
553 -
554void QStackedLayout::setStackingMode(StackingMode stackingMode) -
555{ -
556 Q_D(QStackedLayout);
never executed (the execution status of this line is deduced): QStackedLayoutPrivate * const d = d_func();
-
557 if (d->stackingMode == stackingMode)
never evaluated: d->stackingMode == stackingMode
0
558 return;
never executed: return;
0
559 d->stackingMode = stackingMode;
never executed (the execution status of this line is deduced): d->stackingMode = stackingMode;
-
560 -
561 const int n = d->list.count();
never executed (the execution status of this line is deduced): const int n = d->list.count();
-
562 if (n == 0)
never evaluated: n == 0
0
563 return;
never executed: return;
0
564 -
565 switch (d->stackingMode) { -
566 case StackOne: -
567 if (const int idx = currentIndex())
never evaluated: const int idx = currentIndex()
0
568 for (int i = 0; i < n; ++i)
never evaluated: i < n
0
569 if (QWidget *widget = d->list.at(i)->widget())
never evaluated: QWidget *widget = d->list.at(i)->widget()
0
570 widget->setVisible(i == idx);
never executed: widget->setVisible(i == idx);
0
571 break;
never executed: break;
0
572 case StackAll: { // Turn overlay on: Make sure all widgets are the same size -
573 QRect geometry;
never executed (the execution status of this line is deduced): QRect geometry;
-
574 if (const QWidget *widget = currentWidget())
never evaluated: const QWidget *widget = currentWidget()
0
575 geometry = widget->geometry();
never executed: geometry = widget->geometry();
0
576 for (int i = 0; i < n; ++i)
never evaluated: i < n
0
577 if (QWidget *widget = d->list.at(i)->widget()) {
never evaluated: QWidget *widget = d->list.at(i)->widget()
0
578 if (!geometry.isNull())
never evaluated: !geometry.isNull()
0
579 widget->setGeometry(geometry);
never executed: widget->setGeometry(geometry);
0
580 widget->setVisible(true);
never executed (the execution status of this line is deduced): widget->setVisible(true);
-
581 }
never executed: }
0
582 } -
583 break;
never executed: break;
0
584 } -
585}
never executed: }
0
586 -
587QT_END_NAMESPACE -
588 -
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