widgets/qscrollarea.cpp

Switch to Source codePreprocessed file
LineSource CodeCoverage
1 -
2 -
3 -
4 -
5 -
6QScrollArea::QScrollArea(QWidget *parent) -
7 : QAbstractScrollArea(*new QScrollAreaPrivate,parent) -
8{ -
9 QScrollAreaPrivate * const d = d_func(); -
10 d->viewport->setBackgroundRole(QPalette::NoRole); -
11 d->vbar->setSingleStep(20); -
12 d->hbar->setSingleStep(20); -
13 d->layoutChildren(); -
14}
executed: }
Execution Count:39
39
15 -
16 -
17 -
18 -
19QScrollArea::QScrollArea(QScrollAreaPrivate &dd, QWidget *parent) -
20 : QAbstractScrollArea(dd, parent) -
21{ -
22 QScrollAreaPrivate * const d = d_func(); -
23 d->viewport->setBackgroundRole(QPalette::NoRole); -
24 d->vbar->setSingleStep(20); -
25 d->hbar->setSingleStep(20); -
26 d->layoutChildren(); -
27}
never executed: }
0
28 -
29 -
30 -
31 -
32 -
33 -
34QScrollArea::~QScrollArea() -
35{ -
36} -
37 -
38void QScrollAreaPrivate::updateWidgetPosition() -
39{ -
40 QScrollArea * const q = q_func(); -
41 Qt::LayoutDirection dir = q->layoutDirection(); -
42 QRect scrolled = QStyle::visualRect(dir, viewport->rect(), QRect(QPoint(-hbar->value(), -vbar->value()), widget->size())); -
43 QRect aligned = QStyle::alignedRect(dir, alignment, widget->size(), viewport->rect()); -
44 widget->move(widget->width() < viewport->width() ? aligned.x() : scrolled.x(), -
45 widget->height() < viewport->height() ? aligned.y() : scrolled.y()); -
46}
executed: }
Execution Count:90
90
47 -
48void QScrollAreaPrivate::updateScrollBars() -
49{ -
50 QScrollArea * const q = q_func(); -
51 if (!widget)
evaluated: !widget
TRUEFALSE
yes
Evaluation Count:15
yes
Evaluation Count:78
15-78
52 return;
executed: return;
Execution Count:15
15
53 QSize p = viewport->size(); -
54 QSize m = q->maximumViewportSize(); -
55 -
56 QSize min = qSmartMinSize(widget); -
57 QSize max = qSmartMaxSize(widget); -
58 -
59 if (resizable) {
evaluated: resizable
TRUEFALSE
yes
Evaluation Count:27
yes
Evaluation Count:51
27-51
60 if ((widget->layout() ? widget->layout()->hasHeightForWidth() : widget->sizePolicy().hasHeightForWidth())) {
partially evaluated: widget->layout()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:27
0-27
61 QSize p_hfw = p.expandedTo(min).boundedTo(max); -
62 int h = widget->heightForWidth( p_hfw.width() ); -
63 min = QSize(p_hfw.width(), qMax(p_hfw.height(), h)); -
64 }
executed: }
Execution Count:4
4
65 }
executed: }
Execution Count:27
27
66 -
67 if ((resizable && m.expandedTo(min) == m && m.boundedTo(max) == m)
evaluated: resizable
TRUEFALSE
yes
Evaluation Count:27
yes
Evaluation Count:51
evaluated: m.expandedTo(min) == m
TRUEFALSE
yes
Evaluation Count:25
yes
Evaluation Count:2
partially evaluated: m.boundedTo(max) == m
TRUEFALSE
yes
Evaluation Count:25
no
Evaluation Count:0
0-51
68 || (!resizable && m.expandedTo(widget->size()) == m))
evaluated: !resizable
TRUEFALSE
yes
Evaluation Count:51
yes
Evaluation Count:2
evaluated: m.expandedTo(widget->size()) == m
TRUEFALSE
yes
Evaluation Count:25
yes
Evaluation Count:26
2-51
69 p = m;
executed: p = m;
Execution Count:50
50
70 -
71 if (resizable)
evaluated: resizable
TRUEFALSE
yes
Evaluation Count:27
yes
Evaluation Count:51
27-51
72 widget->resize(p.expandedTo(min).boundedTo(max));
executed: widget->resize(p.expandedTo(min).boundedTo(max));
Execution Count:27
27
73 QSize v = widget->size(); -
74 -
75 hbar->setRange(0, v.width() - p.width()); -
76 hbar->setPageStep(p.width()); -
77 vbar->setRange(0, v.height() - p.height()); -
78 vbar->setPageStep(p.height()); -
79 updateWidgetPosition(); -
80 -
81}
executed: }
Execution Count:78
78
82 -
83 -
84 -
85 -
86 -
87 -
88 -
89QWidget *QScrollArea::widget() const -
90{ -
91 const QScrollAreaPrivate * const d = d_func(); -
92 return d->widget;
executed: return d->widget;
Execution Count:2
2
93} -
94void QScrollArea::setWidget(QWidget *widget) -
95{ -
96 QScrollAreaPrivate * const d = d_func(); -
97 if (widget == d->widget || !widget)
partially evaluated: widget == d->widget
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:32
evaluated: !widget
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:31
0-32
98 return;
executed: return;
Execution Count:1
1
99 -
100 delete d->widget; -
101 d->widget = 0; -
102 d->hbar->setValue(0); -
103 d->vbar->setValue(0); -
104 if (widget->parentWidget() != d->viewport)
partially evaluated: widget->parentWidget() != d->viewport
TRUEFALSE
yes
Evaluation Count:31
no
Evaluation Count:0
0-31
105 widget->setParent(d->viewport);
executed: widget->setParent(d->viewport);
Execution Count:31
31
106 if (!widget->testAttribute(Qt::WA_Resized))
evaluated: !widget->testAttribute(Qt::WA_Resized)
TRUEFALSE
yes
Evaluation Count:24
yes
Evaluation Count:7
7-24
107 widget->resize(widget->sizeHint());
executed: widget->resize(widget->sizeHint());
Execution Count:24
24
108 d->widget = widget; -
109 d->widget->setAutoFillBackground(true); -
110 widget->installEventFilter(this); -
111 d->widgetSize = QSize(); -
112 d->updateScrollBars(); -
113 d->widget->show(); -
114 -
115}
executed: }
Execution Count:31
31
116 -
117 -
118 -
119 -
120 -
121 -
122 -
123QWidget *QScrollArea::takeWidget() -
124{ -
125 QScrollAreaPrivate * const d = d_func(); -
126 QWidget *w = d->widget; -
127 d->widget = 0; -
128 if (w)
never evaluated: w
0
129 w->setParent(0);
never executed: w->setParent(0);
0
130 return w;
never executed: return w;
0
131} -
132 -
133 -
134 -
135 -
136bool QScrollArea::event(QEvent *e) -
137{ -
138 QScrollAreaPrivate * const d = d_func(); -
139 if (e->type() == QEvent::StyleChange || e->type() == QEvent::LayoutRequest) {
evaluated: e->type() == QEvent::StyleChange
TRUEFALSE
yes
Evaluation Count:2
yes
Evaluation Count:358
evaluated: e->type() == QEvent::LayoutRequest
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:357
1-358
140 d->updateScrollBars(); -
141 }
executed: }
Execution Count:3
3
142 return QAbstractScrollArea::event(e);
executed: return QAbstractScrollArea::event(e);
Execution Count:360
360
143} -
144 -
145 -
146 -
147 -
148 -
149bool QScrollArea::eventFilter(QObject *o, QEvent *e) -
150{ -
151 QScrollAreaPrivate * const d = d_func(); -
152 -
153 -
154 -
155 -
156 -
157 -
158 -
159 if (o == d->widget && e->type() == QEvent::Resize)
evaluated: o == d->widget
TRUEFALSE
yes
Evaluation Count:121
yes
Evaluation Count:106
evaluated: e->type() == QEvent::Resize
TRUEFALSE
yes
Evaluation Count:10
yes
Evaluation Count:111
10-121
160 d->updateScrollBars();
executed: d->updateScrollBars();
Execution Count:10
10
161 -
162 return QAbstractScrollArea::eventFilter(o, e);
executed: return QAbstractScrollArea::eventFilter(o, e);
Execution Count:227
227
163} -
164 -
165 -
166 -
167 -
168void QScrollArea::resizeEvent(QResizeEvent *) -
169{ -
170 QScrollAreaPrivate * const d = d_func(); -
171 d->updateScrollBars(); -
172 -
173}
executed: }
Execution Count:23
23
174 -
175 -
176 -
177 -
178void QScrollArea::scrollContentsBy(int, int) -
179{ -
180 QScrollAreaPrivate * const d = d_func(); -
181 if (!d->widget)
evaluated: !d->widget
TRUEFALSE
yes
Evaluation Count:2
yes
Evaluation Count:12
2-12
182 return;
executed: return;
Execution Count:2
2
183 d->updateWidgetPosition(); -
184}
executed: }
Execution Count:12
12
185bool QScrollArea::widgetResizable() const -
186{ -
187 const QScrollAreaPrivate * const d = d_func(); -
188 return d->resizable;
executed: return d->resizable;
Execution Count:2
2
189} -
190 -
191void QScrollArea::setWidgetResizable(bool resizable) -
192{ -
193 QScrollAreaPrivate * const d = d_func(); -
194 d->resizable = resizable; -
195 updateGeometry(); -
196 d->updateScrollBars(); -
197}
executed: }
Execution Count:26
26
198 -
199 -
200 -
201 -
202QSize QScrollArea::sizeHint() const -
203{ -
204 const QScrollAreaPrivate * const d = d_func(); -
205 int f = 2 * d->frameWidth; -
206 QSize sz(f, f); -
207 int h = fontMetrics().height(); -
208 if (d->widget) {
partially evaluated: d->widget
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:40
0-40
209 if (!d->widgetSize.isValid())
never evaluated: !d->widgetSize.isValid()
0
210 d->widgetSize = d->resizable ? d->widget->sizeHint() : d->widget->size();
never executed: d->widgetSize = d->resizable ? d->widget->sizeHint() : d->widget->size();
never evaluated: d->resizable
0
211 sz += d->widgetSize; -
212 } else {
never executed: }
0
213 sz += QSize(12 * h, 8 * h); -
214 }
executed: }
Execution Count:40
40
215 if (d->vbarpolicy == Qt::ScrollBarAlwaysOn)
partially evaluated: d->vbarpolicy == Qt::ScrollBarAlwaysOn
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:40
0-40
216 sz.setWidth(sz.width() + d->vbar->sizeHint().width());
never executed: sz.setWidth(sz.width() + d->vbar->sizeHint().width());
0
217 if (d->hbarpolicy == Qt::ScrollBarAlwaysOn)
partially evaluated: d->hbarpolicy == Qt::ScrollBarAlwaysOn
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:40
0-40
218 sz.setHeight(sz.height() + d->hbar->sizeHint().height());
never executed: sz.setHeight(sz.height() + d->hbar->sizeHint().height());
0
219 return sz.boundedTo(QSize(36 * h, 24 * h));
executed: return sz.boundedTo(QSize(36 * h, 24 * h));
Execution Count:40
40
220} -
221 -
222 -
223 -
224 -
225 -
226 -
227bool QScrollArea::focusNextPrevChild(bool next) -
228{ -
229 if (QWidget::focusNextPrevChild(next)) {
never evaluated: QWidget::focusNextPrevChild(next)
0
230 if (QWidget *fw = focusWidget())
never evaluated: QWidget *fw = focusWidget()
0
231 ensureWidgetVisible(fw);
never executed: ensureWidgetVisible(fw);
0
232 return true;
never executed: return true;
0
233 } -
234 return false;
never executed: return false;
0
235} -
236 -
237 -
238 -
239 -
240 -
241 -
242 -
243void QScrollArea::ensureVisible(int x, int y, int xmargin, int ymargin) -
244{ -
245 QScrollAreaPrivate * const d = d_func(); -
246 -
247 int logicalX = QStyle::visualPos(layoutDirection(), d->viewport->rect(), QPoint(x, y)).x(); -
248 -
249 if (logicalX - xmargin < d->hbar->value()) {
never evaluated: logicalX - xmargin < d->hbar->value()
0
250 d->hbar->setValue(qMax(0, logicalX - xmargin)); -
251 } else if (logicalX > d->hbar->value() + d->viewport->width() - xmargin) {
never executed: }
never evaluated: logicalX > d->hbar->value() + d->viewport->width() - xmargin
0
252 d->hbar->setValue(qMin(logicalX - d->viewport->width() + xmargin, d->hbar->maximum())); -
253 }
never executed: }
0
254 -
255 if (y - ymargin < d->vbar->value()) {
never evaluated: y - ymargin < d->vbar->value()
0
256 d->vbar->setValue(qMax(0, y - ymargin)); -
257 } else if (y > d->vbar->value() + d->viewport->height() - ymargin) {
never executed: }
never evaluated: y > d->vbar->value() + d->viewport->height() - ymargin
0
258 d->vbar->setValue(qMin(y - d->viewport->height() + ymargin, d->vbar->maximum())); -
259 }
never executed: }
0
260} -
261void QScrollArea::ensureWidgetVisible(QWidget *childWidget, int xmargin, int ymargin) -
262{ -
263 QScrollAreaPrivate * const d = d_func(); -
264 -
265 if (!d->widget->isAncestorOf(childWidget))
partially evaluated: !d->widget->isAncestorOf(childWidget)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
266 return;
never executed: return;
0
267 -
268 const QRect microFocus = childWidget->inputMethodQuery(Qt::ImCursorRectangle).toRect(); -
269 const QRect defaultMicroFocus = -
270 childWidget->QWidget::inputMethodQuery(Qt::ImCursorRectangle).toRect(); -
271 QRect focusRect = (microFocus != defaultMicroFocus)
partially evaluated: (microFocus != defaultMicroFocus)
TRUEFALSE
yes
Evaluation Count:1
no
Evaluation Count:0
0-1
272 ? QRect(childWidget->mapTo(d->widget, microFocus.topLeft()), microFocus.size()) -
273 : QRect(childWidget->mapTo(d->widget, QPoint(0,0)), childWidget->size()); -
274 const QRect visibleRect(-d->widget->pos(), d->viewport->size()); -
275 -
276 if (visibleRect.contains(focusRect))
partially evaluated: visibleRect.contains(focusRect)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
277 return;
never executed: return;
0
278 -
279 focusRect.adjust(-xmargin, -ymargin, xmargin, ymargin); -
280 -
281 if (focusRect.width() > visibleRect.width())
partially evaluated: focusRect.width() > visibleRect.width()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
282 d->hbar->setValue(focusRect.center().x() - d->viewport->width() / 2);
never executed: d->hbar->setValue(focusRect.center().x() - d->viewport->width() / 2);
0
283 else if (focusRect.right() > visibleRect.right())
partially evaluated: focusRect.right() > visibleRect.right()
TRUEFALSE
yes
Evaluation Count:1
no
Evaluation Count:0
0-1
284 d->hbar->setValue(focusRect.right() - d->viewport->width());
executed: d->hbar->setValue(focusRect.right() - d->viewport->width());
Execution Count:1
1
285 else if (focusRect.left() < visibleRect.left())
never evaluated: focusRect.left() < visibleRect.left()
0
286 d->hbar->setValue(focusRect.left());
never executed: d->hbar->setValue(focusRect.left());
0
287 -
288 if (focusRect.height() > visibleRect.height())
partially evaluated: focusRect.height() > visibleRect.height()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
289 d->vbar->setValue(focusRect.center().y() - d->viewport->height() / 2);
never executed: d->vbar->setValue(focusRect.center().y() - d->viewport->height() / 2);
0
290 else if (focusRect.bottom() > visibleRect.bottom())
partially evaluated: focusRect.bottom() > visibleRect.bottom()
TRUEFALSE
yes
Evaluation Count:1
no
Evaluation Count:0
0-1
291 d->vbar->setValue(focusRect.bottom() - d->viewport->height());
executed: d->vbar->setValue(focusRect.bottom() - d->viewport->height());
Execution Count:1
1
292 else if (focusRect.top() < visibleRect.top())
never evaluated: focusRect.top() < visibleRect.top()
0
293 d->vbar->setValue(focusRect.top());
never executed: d->vbar->setValue(focusRect.top());
0
294} -
295void QScrollArea::setAlignment(Qt::Alignment alignment) -
296{ -
297 QScrollAreaPrivate * const d = d_func(); -
298 d->alignment = alignment; -
299 if (d->widget)
never evaluated: d->widget
0
300 d->updateWidgetPosition();
never executed: d->updateWidgetPosition();
0
301}
never executed: }
0
302 -
303Qt::Alignment QScrollArea::alignment() const -
304{ -
305 const QScrollAreaPrivate * const d = d_func(); -
306 return d->alignment;
never executed: return d->alignment;
0
307} -
308 -
309 -
310 -
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