widgets/qscrollbar.cpp

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41 -
42#include "qapplication.h" -
43#include "qcursor.h" -
44#include "qevent.h" -
45#include "qpainter.h" -
46#include "qscrollbar.h" -
47#include "qstyle.h" -
48#include "qstyleoption.h" -
49#include "qmenu.h" -
50#include <QtCore/qelapsedtimer.h> -
51 -
52#ifndef QT_NO_SCROLLBAR -
53 -
54#ifndef QT_NO_ACCESSIBILITY -
55#include "qaccessible.h" -
56#endif -
57#include <limits.h> -
58#include "qscrollbar_p.h" -
59 -
60QT_BEGIN_NAMESPACE -
61 -
62/*! -
63 \class QScrollBar -
64 \brief The QScrollBar widget provides a vertical or horizontal scroll bar. -
65 -
66 \ingroup basicwidgets -
67 \inmodule QtWidgets -
68 -
69 A scroll bar is a control that enables the user to access parts of a -
70 document that is larger than the widget used to display it. It provides -
71 a visual indication of the user's current position within the document -
72 and the amount of the document that is visible. Scroll bars are usually -
73 equipped with other controls that enable more accurate navigation. -
74 Qt displays scroll bars in a way that is appropriate for each platform. -
75 -
76 If you need to provide a scrolling view onto another widget, it may be -
77 more convenient to use the QScrollArea class because this provides a -
78 viewport widget and scroll bars. QScrollBar is useful if you need to -
79 implement similar functionality for specialized widgets using QAbstractScrollArea; -
80 for example, if you decide to subclass QAbstractItemView. -
81 For most other situations where a slider control is used to obtain a value -
82 within a given range, the QSlider class may be more appropriate for your -
83 needs. -
84 -
85 \table -
86 \row \li \image qscrollbar-picture.png -
87 \li Scroll bars typically include four separate controls: a slider, -
88 scroll arrows, and a page control. -
89 -
90 \list -
91 \li a. The slider provides a way to quickly go to any part of the -
92 document, but does not support accurate navigation within large -
93 documents. -
94 \li b. The scroll arrows are push buttons which can be used to accurately -
95 navigate to a particular place in a document. For a vertical scroll bar -
96 connected to a text editor, these typically move the current position one -
97 "line" up or down, and adjust the position of the slider by a small -
98 amount. In editors and list boxes a "line" might mean one line of text; -
99 in an image viewer it might mean 20 pixels. -
100 \li c. The page control is the area over which the slider is dragged (the -
101 scroll bar's background). Clicking here moves the scroll bar towards -
102 the click by one "page". This value is usually the same as the length of -
103 the slider. -
104 \endlist -
105 \endtable -
106 -
107 Each scroll bar has a value that indicates how far the slider is from -
108 the start of the scroll bar; this is obtained with value() and set -
109 with setValue(). This value always lies within the range of values -
110 defined for the scroll bar, from \l{QAbstractSlider::minimum()}{minimum()} -
111 to \l{QAbstractSlider::minimum()}{maximum()} inclusive. The range of -
112 acceptable values can be set with setMinimum() and setMaximum(). -
113 At the minimum value, the top edge of the slider (for a vertical scroll -
114 bar) or left edge (for a horizontal scroll bar) will be at the top (or -
115 left) end of the scroll bar. At the maximum value, the bottom (or right) -
116 edge of the slider will be at the bottom (or right) end of the scroll bar. -
117 -
118 The length of the slider is usually related to the value of the page step, -
119 and typically represents the proportion of the document area shown in a -
120 scrolling view. The page step is the amount that the value changes by -
121 when the user presses the \uicontrol{Page Up} and \uicontrol{Page Down} keys, and is -
122 set with setPageStep(). Smaller changes to the value defined by the -
123 line step are made using the cursor keys, and this quantity is set with -
124 \l{QAbstractSlider::}{setSingleStep()}. -
125 -
126 Note that the range of values used is independent of the actual size -
127 of the scroll bar widget. You do not need to take this into account when -
128 you choose values for the range and the page step. -
129 -
130 The range of values specified for the scroll bar are often determined -
131 differently to those for a QSlider because the length of the slider -
132 needs to be taken into account. If we have a document with 100 lines, -
133 and we can only show 20 lines in a widget, we may wish to construct a -
134 scroll bar with a page step of 20, a minimum value of 0, and a maximum -
135 value of 80. This would give us a scroll bar with five "pages". -
136 -
137 \table -
138 \row \li \inlineimage qscrollbar-values.png -
139 \li The relationship between a document length, the range of values used -
140 in a scroll bar, and the page step is simple in many common situations. -
141 The scroll bar's range of values is determined by subtracting a -
142 chosen page step from some value representing the length of the document. -
143 In such cases, the following equation is useful: -
144 \e{document length} = maximum() - minimum() + pageStep(). -
145 \endtable -
146 -
147 QScrollBar only provides integer ranges. Note that although -
148 QScrollBar handles very large numbers, scroll bars on current -
149 screens cannot usefully represent ranges above about 100,000 pixels. -
150 Beyond that, it becomes difficult for the user to control the -
151 slider using either the keyboard or the mouse, and the scroll -
152 arrows will have limited use. -
153 -
154 ScrollBar inherits a comprehensive set of signals from QAbstractSlider: -
155 \list -
156 \li \l{QAbstractSlider::valueChanged()}{valueChanged()} is emitted when the -
157 scroll bar's value has changed. The tracking() determines whether this -
158 signal is emitted during user interaction. -
159 \li \l{QAbstractSlider::rangeChanged()}{rangeChanged()} is emitted when the -
160 scroll bar's range of values has changed. -
161 \li \l{QAbstractSlider::sliderPressed()}{sliderPressed()} is emitted when -
162 the user starts to drag the slider. -
163 \li \l{QAbstractSlider::sliderMoved()}{sliderMoved()} is emitted when the user -
164 drags the slider. -
165 \li \l{QAbstractSlider::sliderReleased()}{sliderReleased()} is emitted when -
166 the user releases the slider. -
167 \li \l{QAbstractSlider::actionTriggered()}{actionTriggered()} is emitted -
168 when the scroll bar is changed by user interaction or via the -
169 \l{QAbstractSlider::triggerAction()}{triggerAction()} function. -
170 \endlist -
171 -
172 A scroll bar can be controlled by the keyboard, but it has a -
173 default focusPolicy() of Qt::NoFocus. Use setFocusPolicy() to -
174 enable keyboard interaction with the scroll bar: -
175 \list -
176 \li Left/Right move a horizontal scroll bar by one single step. -
177 \li Up/Down move a vertical scroll bar by one single step. -
178 \li PageUp moves up one page. -
179 \li PageDown moves down one page. -
180 \li Home moves to the start (mininum). -
181 \li End moves to the end (maximum). -
182 \endlist -
183 -
184 The slider itself can be controlled by using the -
185 \l{QAbstractSlider::triggerAction()}{triggerAction()} function to simulate -
186 user interaction with the scroll bar controls. This is useful if you have -
187 many different widgets that use a common range of values. -
188 -
189 Most GUI styles use the pageStep() value to calculate the size of the -
190 slider. -
191 -
192 \table 100% -
193 \row \li \inlineimage macintosh-horizontalscrollbar.png Screenshot of a Macintosh style scroll bar -
194 \li A scroll bar shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}. -
195 \row \li \inlineimage windowsvista-horizontalscrollbar.png Screenshot of a Windows Vista style scroll bar -
196 \li A scroll bar shown in the \l{Windows Vista Style Widget Gallery}{Windows Vista widget style}. -
197 \row \li \inlineimage fusion-horizontalscrollbar.png Screenshot of a Fusion style scroll bar -
198 \li A scroll bar shown in the \l{Fusion Style Widget Gallery}{Fusion widget style}. -
199 \endtable -
200 -
201 \sa QScrollArea, QSlider, QDial, QSpinBox, {fowler}{GUI Design Handbook: Scroll Bar}, {Sliders Example} -
202*/ -
203 -
204bool QScrollBarPrivate::updateHoverControl(const QPoint &pos) -
205{ -
206 Q_Q(QScrollBar);
never executed (the execution status of this line is deduced): QScrollBar * const q = q_func();
-
207 QRect lastHoverRect = hoverRect;
never executed (the execution status of this line is deduced): QRect lastHoverRect = hoverRect;
-
208 QStyle::SubControl lastHoverControl = hoverControl;
never executed (the execution status of this line is deduced): QStyle::SubControl lastHoverControl = hoverControl;
-
209 bool doesHover = q->testAttribute(Qt::WA_Hover);
never executed (the execution status of this line is deduced): bool doesHover = q->testAttribute(Qt::WA_Hover);
-
210 if (lastHoverControl != newHoverControl(pos) && doesHover) {
never evaluated: lastHoverControl != newHoverControl(pos)
never evaluated: doesHover
0
211 q->update(lastHoverRect);
never executed (the execution status of this line is deduced): q->update(lastHoverRect);
-
212 q->update(hoverRect);
never executed (the execution status of this line is deduced): q->update(hoverRect);
-
213 return true;
never executed: return true;
0
214 } -
215 return !doesHover;
never executed: return !doesHover;
0
216} -
217 -
218QStyle::SubControl QScrollBarPrivate::newHoverControl(const QPoint &pos) -
219{ -
220 Q_Q(QScrollBar);
never executed (the execution status of this line is deduced): QScrollBar * const q = q_func();
-
221 QStyleOptionSlider opt;
never executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
222 q->initStyleOption(&opt);
never executed (the execution status of this line is deduced): q->initStyleOption(&opt);
-
223 opt.subControls = QStyle::SC_All;
never executed (the execution status of this line is deduced): opt.subControls = QStyle::SC_All;
-
224 hoverControl = q->style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, pos, q);
never executed (the execution status of this line is deduced): hoverControl = q->style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, pos, q);
-
225 if (hoverControl == QStyle::SC_None)
never evaluated: hoverControl == QStyle::SC_None
0
226 hoverRect = QRect();
never executed: hoverRect = QRect();
0
227 else -
228 hoverRect = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt, hoverControl, q);
never executed: hoverRect = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt, hoverControl, q);
0
229 return hoverControl;
never executed: return hoverControl;
0
230} -
231 -
232void QScrollBarPrivate::setTransient(bool value) -
233{ -
234 Q_Q(QScrollBar);
executed (the execution status of this line is deduced): QScrollBar * const q = q_func();
-
235 if (transient != value) {
partially evaluated: transient != value
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:790
0-790
236 transient = value;
never executed (the execution status of this line is deduced): transient = value;
-
237 if (q->isVisible()) {
never evaluated: q->isVisible()
0
238 if (q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, q))
never evaluated: q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, q)
0
239 q->update();
never executed: q->update();
0
240 } else if (!transient) {
never executed: }
never evaluated: !transient
0
241 q->show();
never executed (the execution status of this line is deduced): q->show();
-
242 }
never executed: }
0
243 } -
244}
executed: }
Execution Count:790
790
245 -
246void QScrollBarPrivate::flash() -
247{ -
248 Q_Q(QScrollBar);
executed (the execution status of this line is deduced): QScrollBar * const q = q_func();
-
249 if (!flashed && q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, q)) {
partially evaluated: !flashed
TRUEFALSE
yes
Evaluation Count:18026
no
Evaluation Count:0
partially evaluated: q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, q)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:18026
0-18026
250 flashed = true;
never executed (the execution status of this line is deduced): flashed = true;
-
251 q->show();
never executed (the execution status of this line is deduced): q->show();
-
252 }
never executed: }
0
253}
executed: }
Execution Count:18026
18026
254 -
255void QScrollBarPrivate::activateControl(uint control, int threshold) -
256{ -
257 QAbstractSlider::SliderAction action = QAbstractSlider::SliderNoAction;
executed (the execution status of this line is deduced): QAbstractSlider::SliderAction action = QAbstractSlider::SliderNoAction;
-
258 switch (control) { -
259 case QStyle::SC_ScrollBarAddPage: -
260 action = QAbstractSlider::SliderPageStepAdd;
executed (the execution status of this line is deduced): action = QAbstractSlider::SliderPageStepAdd;
-
261 break;
executed: break;
Execution Count:1
1
262 case QStyle::SC_ScrollBarSubPage: -
263 action = QAbstractSlider::SliderPageStepSub;
never executed (the execution status of this line is deduced): action = QAbstractSlider::SliderPageStepSub;
-
264 break;
never executed: break;
0
265 case QStyle::SC_ScrollBarAddLine: -
266 action = QAbstractSlider::SliderSingleStepAdd;
executed (the execution status of this line is deduced): action = QAbstractSlider::SliderSingleStepAdd;
-
267 break;
executed: break;
Execution Count:2
2
268 case QStyle::SC_ScrollBarSubLine: -
269 action = QAbstractSlider::SliderSingleStepSub;
never executed (the execution status of this line is deduced): action = QAbstractSlider::SliderSingleStepSub;
-
270 break;
never executed: break;
0
271 case QStyle::SC_ScrollBarFirst: -
272 action = QAbstractSlider::SliderToMinimum;
never executed (the execution status of this line is deduced): action = QAbstractSlider::SliderToMinimum;
-
273 break;
never executed: break;
0
274 case QStyle::SC_ScrollBarLast: -
275 action = QAbstractSlider::SliderToMaximum;
never executed (the execution status of this line is deduced): action = QAbstractSlider::SliderToMaximum;
-
276 break;
never executed: break;
0
277 default: -
278 break;
executed: break;
Execution Count:1
1
279 } -
280 -
281 if (action) {
evaluated: action
TRUEFALSE
yes
Evaluation Count:3
yes
Evaluation Count:1
1-3
282 q_func()->setRepeatAction(action, threshold);
executed (the execution status of this line is deduced): q_func()->setRepeatAction(action, threshold);
-
283 q_func()->triggerAction(action);
executed (the execution status of this line is deduced): q_func()->triggerAction(action);
-
284 }
executed: }
Execution Count:3
3
285}
executed: }
Execution Count:4
4
286 -
287void QScrollBarPrivate::stopRepeatAction() -
288{ -
289 Q_Q(QScrollBar);
executed (the execution status of this line is deduced): QScrollBar * const q = q_func();
-
290 QStyle::SubControl tmp = pressedControl;
executed (the execution status of this line is deduced): QStyle::SubControl tmp = pressedControl;
-
291 q->setRepeatAction(QAbstractSlider::SliderNoAction);
executed (the execution status of this line is deduced): q->setRepeatAction(QAbstractSlider::SliderNoAction);
-
292 pressedControl = QStyle::SC_None;
executed (the execution status of this line is deduced): pressedControl = QStyle::SC_None;
-
293 -
294 if (tmp == QStyle::SC_ScrollBarSlider)
evaluated: tmp == QStyle::SC_ScrollBarSlider
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:2
1-2
295 q->setSliderDown(false);
executed: q->setSliderDown(false);
Execution Count:1
1
296 -
297 QStyleOptionSlider opt;
executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
298 q->initStyleOption(&opt);
executed (the execution status of this line is deduced): q->initStyleOption(&opt);
-
299 q->repaint(q->style()->subControlRect(QStyle::CC_ScrollBar, &opt, tmp, q));
executed (the execution status of this line is deduced): q->repaint(q->style()->subControlRect(QStyle::CC_ScrollBar, &opt, tmp, q));
-
300}
executed: }
Execution Count:3
3
301 -
302/*! -
303 Initialize \a option with the values from this QScrollBar. This method -
304 is useful for subclasses when they need a QStyleOptionSlider, but don't want -
305 to fill in all the information themselves. -
306 -
307 \sa QStyleOption::initFrom() -
308*/ -
309void QScrollBar::initStyleOption(QStyleOptionSlider *option) const -
310{ -
311 if (!option)
partially evaluated: !option
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:99062
0-99062
312 return;
never executed: return;
0
313 -
314 Q_D(const QScrollBar);
executed (the execution status of this line is deduced): const QScrollBarPrivate * const d = d_func();
-
315 option->initFrom(this);
executed (the execution status of this line is deduced): option->initFrom(this);
-
316 option->subControls = QStyle::SC_None;
executed (the execution status of this line is deduced): option->subControls = QStyle::SC_None;
-
317 option->activeSubControls = QStyle::SC_None;
executed (the execution status of this line is deduced): option->activeSubControls = QStyle::SC_None;
-
318 option->orientation = d->orientation;
executed (the execution status of this line is deduced): option->orientation = d->orientation;
-
319 option->minimum = d->minimum;
executed (the execution status of this line is deduced): option->minimum = d->minimum;
-
320 option->maximum = d->maximum;
executed (the execution status of this line is deduced): option->maximum = d->maximum;
-
321 option->sliderPosition = d->position;
executed (the execution status of this line is deduced): option->sliderPosition = d->position;
-
322 option->sliderValue = d->value;
executed (the execution status of this line is deduced): option->sliderValue = d->value;
-
323 option->singleStep = d->singleStep;
executed (the execution status of this line is deduced): option->singleStep = d->singleStep;
-
324 option->pageStep = d->pageStep;
executed (the execution status of this line is deduced): option->pageStep = d->pageStep;
-
325 option->upsideDown = d->invertedAppearance;
executed (the execution status of this line is deduced): option->upsideDown = d->invertedAppearance;
-
326 if (d->orientation == Qt::Horizontal)
evaluated: d->orientation == Qt::Horizontal
TRUEFALSE
yes
Evaluation Count:48967
yes
Evaluation Count:50095
48967-50095
327 option->state |= QStyle::State_Horizontal;
executed: option->state |= QStyle::State_Horizontal;
Execution Count:48967
48967
328 if ((d->flashed || !d->transient) && style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, this))
partially evaluated: d->flashed
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:99062
partially evaluated: !d->transient
TRUEFALSE
yes
Evaluation Count:99062
no
Evaluation Count:0
partially evaluated: style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, this)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:99062
0-99062
329 option->state |= QStyle::State_On;
never executed: option->state |= QStyle::State_On;
0
330}
executed: }
Execution Count:99062
99062
331 -
332 -
333#define HORIZONTAL (d_func()->orientation == Qt::Horizontal) -
334#define VERTICAL !HORIZONTAL -
335 -
336/*! -
337 Constructs a vertical scroll bar. -
338 -
339 The \a parent argument is sent to the QWidget constructor. -
340 -
341 The \l {QAbstractSlider::minimum} {minimum} defaults to 0, the -
342 \l {QAbstractSlider::maximum} {maximum} to 99, with a -
343 \l {QAbstractSlider::singleStep} {singleStep} size of 1 and a -
344 \l {QAbstractSlider::pageStep} {pageStep} size of 10, and an -
345 initial \l {QAbstractSlider::value} {value} of 0. -
346*/ -
347QScrollBar::QScrollBar(QWidget *parent) -
348 : QAbstractSlider(*new QScrollBarPrivate, parent) -
349{ -
350 d_func()->orientation = Qt::Vertical;
executed (the execution status of this line is deduced): d_func()->orientation = Qt::Vertical;
-
351 d_func()->init();
executed (the execution status of this line is deduced): d_func()->init();
-
352}
executed: }
Execution Count:17
17
353 -
354/*! -
355 Constructs a scroll bar with the given \a orientation. -
356 -
357 The \a parent argument is passed to the QWidget constructor. -
358 -
359 The \l {QAbstractSlider::minimum} {minimum} defaults to 0, the -
360 \l {QAbstractSlider::maximum} {maximum} to 99, with a -
361 \l {QAbstractSlider::singleStep} {singleStep} size of 1 and a -
362 \l {QAbstractSlider::pageStep} {pageStep} size of 10, and an -
363 initial \l {QAbstractSlider::value} {value} of 0. -
364*/ -
365QScrollBar::QScrollBar(Qt::Orientation orientation, QWidget *parent) -
366 : QAbstractSlider(*new QScrollBarPrivate, parent) -
367{ -
368 d_func()->orientation = orientation;
executed (the execution status of this line is deduced): d_func()->orientation = orientation;
-
369 d_func()->init();
executed (the execution status of this line is deduced): d_func()->init();
-
370}
executed: }
Execution Count:10202
10202
371 -
372 -
373 -
374/*! -
375 Destroys the scroll bar. -
376*/ -
377QScrollBar::~QScrollBar() -
378{ -
379} -
380 -
381void QScrollBarPrivate::init() -
382{ -
383 Q_Q(QScrollBar);
executed (the execution status of this line is deduced): QScrollBar * const q = q_func();
-
384 invertedControls = true;
executed (the execution status of this line is deduced): invertedControls = true;
-
385 pressedControl = hoverControl = QStyle::SC_None;
executed (the execution status of this line is deduced): pressedControl = hoverControl = QStyle::SC_None;
-
386 pointerOutsidePressedControl = false;
executed (the execution status of this line is deduced): pointerOutsidePressedControl = false;
-
387 transient = q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, q);
executed (the execution status of this line is deduced): transient = q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, q);
-
388 flashed = false;
executed (the execution status of this line is deduced): flashed = false;
-
389 q->setFocusPolicy(Qt::NoFocus);
executed (the execution status of this line is deduced): q->setFocusPolicy(Qt::NoFocus);
-
390 QSizePolicy sp(QSizePolicy::Minimum, QSizePolicy::Fixed, QSizePolicy::Slider);
executed (the execution status of this line is deduced): QSizePolicy sp(QSizePolicy::Minimum, QSizePolicy::Fixed, QSizePolicy::Slider);
-
391 if (orientation == Qt::Vertical)
evaluated: orientation == Qt::Vertical
TRUEFALSE
yes
Evaluation Count:5117
yes
Evaluation Count:5102
5102-5117
392 sp.transpose();
executed: sp.transpose();
Execution Count:5117
5117
393 q->setSizePolicy(sp);
executed (the execution status of this line is deduced): q->setSizePolicy(sp);
-
394 q->setAttribute(Qt::WA_WState_OwnSizePolicy, false);
executed (the execution status of this line is deduced): q->setAttribute(Qt::WA_WState_OwnSizePolicy, false);
-
395 q->setAttribute(Qt::WA_OpaquePaintEvent);
executed (the execution status of this line is deduced): q->setAttribute(Qt::WA_OpaquePaintEvent);
-
396 -
397#if !defined(QT_NO_CONTEXTMENU) && defined(Q_OS_WINCE) -
398 if (!q->style()->styleHint(QStyle::SH_ScrollBar_ContextMenu, 0, q)) { -
399 q->setContextMenuPolicy(Qt::PreventContextMenu); -
400 } -
401#endif -
402}
executed: }
Execution Count:10219
10219
403 -
404#ifndef QT_NO_CONTEXTMENU -
405/*! \reimp */ -
406void QScrollBar::contextMenuEvent(QContextMenuEvent *event) -
407{ -
408 if (!style()->styleHint(QStyle::SH_ScrollBar_ContextMenu, 0, this)) {
never evaluated: !style()->styleHint(QStyle::SH_ScrollBar_ContextMenu, 0, this)
0
409 QAbstractSlider::contextMenuEvent(event);
never executed (the execution status of this line is deduced): QAbstractSlider::contextMenuEvent(event);
-
410 return ;
never executed: return ;
0
411 } -
412 -
413#ifndef QT_NO_MENU -
414 bool horiz = HORIZONTAL;
never executed (the execution status of this line is deduced): bool horiz = (d_func()->orientation == Qt::Horizontal);
-
415 QPointer<QMenu> menu = new QMenu(this);
never executed (the execution status of this line is deduced): QPointer<QMenu> menu = new QMenu(this);
-
416 QAction *actScrollHere = menu->addAction(tr("Scroll here"));
never executed (the execution status of this line is deduced): QAction *actScrollHere = menu->addAction(tr("Scroll here"));
-
417 menu->addSeparator();
never executed (the execution status of this line is deduced): menu->addSeparator();
-
418 QAction *actScrollTop = menu->addAction(horiz ? tr("Left edge") : tr("Top"));
never executed (the execution status of this line is deduced): QAction *actScrollTop = menu->addAction(horiz ? tr("Left edge") : tr("Top"));
-
419 QAction *actScrollBottom = menu->addAction(horiz ? tr("Right edge") : tr("Bottom"));
never executed (the execution status of this line is deduced): QAction *actScrollBottom = menu->addAction(horiz ? tr("Right edge") : tr("Bottom"));
-
420 menu->addSeparator();
never executed (the execution status of this line is deduced): menu->addSeparator();
-
421 QAction *actPageUp = menu->addAction(horiz ? tr("Page left") : tr("Page up"));
never executed (the execution status of this line is deduced): QAction *actPageUp = menu->addAction(horiz ? tr("Page left") : tr("Page up"));
-
422 QAction *actPageDn = menu->addAction(horiz ? tr("Page right") : tr("Page down"));
never executed (the execution status of this line is deduced): QAction *actPageDn = menu->addAction(horiz ? tr("Page right") : tr("Page down"));
-
423 menu->addSeparator();
never executed (the execution status of this line is deduced): menu->addSeparator();
-
424 QAction *actScrollUp = menu->addAction(horiz ? tr("Scroll left") : tr("Scroll up"));
never executed (the execution status of this line is deduced): QAction *actScrollUp = menu->addAction(horiz ? tr("Scroll left") : tr("Scroll up"));
-
425 QAction *actScrollDn = menu->addAction(horiz ? tr("Scroll right") : tr("Scroll down"));
never executed (the execution status of this line is deduced): QAction *actScrollDn = menu->addAction(horiz ? tr("Scroll right") : tr("Scroll down"));
-
426 QAction *actionSelected = menu->exec(event->globalPos());
never executed (the execution status of this line is deduced): QAction *actionSelected = menu->exec(event->globalPos());
-
427 delete menu;
never executed (the execution status of this line is deduced): delete menu;
-
428 if (actionSelected == 0)
never evaluated: actionSelected == 0
0
429 /* do nothing */ ;
never executed: ;
0
430 else if (actionSelected == actScrollHere)
never evaluated: actionSelected == actScrollHere
0
431 setValue(d_func()->pixelPosToRangeValue(horiz ? event->pos().x() : event->pos().y()));
never executed: setValue(d_func()->pixelPosToRangeValue(horiz ? event->pos().x() : event->pos().y()));
0
432 else if (actionSelected == actScrollTop)
never evaluated: actionSelected == actScrollTop
0
433 triggerAction(QAbstractSlider::SliderToMinimum);
never executed: triggerAction(QAbstractSlider::SliderToMinimum);
0
434 else if (actionSelected == actScrollBottom)
never evaluated: actionSelected == actScrollBottom
0
435 triggerAction(QAbstractSlider::SliderToMaximum);
never executed: triggerAction(QAbstractSlider::SliderToMaximum);
0
436 else if (actionSelected == actPageUp)
never evaluated: actionSelected == actPageUp
0
437 triggerAction(QAbstractSlider::SliderPageStepSub);
never executed: triggerAction(QAbstractSlider::SliderPageStepSub);
0
438 else if (actionSelected == actPageDn)
never evaluated: actionSelected == actPageDn
0
439 triggerAction(QAbstractSlider::SliderPageStepAdd);
never executed: triggerAction(QAbstractSlider::SliderPageStepAdd);
0
440 else if (actionSelected == actScrollUp)
never evaluated: actionSelected == actScrollUp
0
441 triggerAction(QAbstractSlider::SliderSingleStepSub);
never executed: triggerAction(QAbstractSlider::SliderSingleStepSub);
0
442 else if (actionSelected == actScrollDn)
never evaluated: actionSelected == actScrollDn
0
443 triggerAction(QAbstractSlider::SliderSingleStepAdd);
never executed: triggerAction(QAbstractSlider::SliderSingleStepAdd);
0
444#endif // QT_NO_MENU -
445} -
446#endif // QT_NO_CONTEXTMENU -
447 -
448 -
449/*! \reimp */ -
450QSize QScrollBar::sizeHint() const -
451{ -
452 ensurePolished();
executed (the execution status of this line is deduced): ensurePolished();
-
453 QStyleOptionSlider opt;
executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
454 initStyleOption(&opt);
executed (the execution status of this line is deduced): initStyleOption(&opt);
-
455 -
456 int scrollBarExtent = style()->pixelMetric(QStyle::PM_ScrollBarExtent, &opt, this);
executed (the execution status of this line is deduced): int scrollBarExtent = style()->pixelMetric(QStyle::PM_ScrollBarExtent, &opt, this);
-
457 int scrollBarSliderMin = style()->pixelMetric(QStyle::PM_ScrollBarSliderMin, &opt, this);
executed (the execution status of this line is deduced): int scrollBarSliderMin = style()->pixelMetric(QStyle::PM_ScrollBarSliderMin, &opt, this);
-
458 QSize size;
executed (the execution status of this line is deduced): QSize size;
-
459 if (opt.orientation == Qt::Horizontal)
evaluated: opt.orientation == Qt::Horizontal
TRUEFALSE
yes
Evaluation Count:47588
yes
Evaluation Count:48376
47588-48376
460 size = QSize(scrollBarExtent * 2 + scrollBarSliderMin, scrollBarExtent);
executed: size = QSize(scrollBarExtent * 2 + scrollBarSliderMin, scrollBarExtent);
Execution Count:47588
47588
461 else -
462 size = QSize(scrollBarExtent, scrollBarExtent * 2 + scrollBarSliderMin);
executed: size = QSize(scrollBarExtent, scrollBarExtent * 2 + scrollBarSliderMin);
Execution Count:48376
48376
463 -
464 return style()->sizeFromContents(QStyle::CT_ScrollBar, &opt, size, this)
executed: return style()->sizeFromContents(QStyle::CT_ScrollBar, &opt, size, this) .expandedTo(QApplication::globalStrut());
Execution Count:95964
95964
465 .expandedTo(QApplication::globalStrut());
executed: return style()->sizeFromContents(QStyle::CT_ScrollBar, &opt, size, this) .expandedTo(QApplication::globalStrut());
Execution Count:95964
95964
466 } -
467 -
468/*!\reimp */ -
469void QScrollBar::sliderChange(SliderChange change) -
470{ -
471 QAbstractSlider::sliderChange(change);
executed (the execution status of this line is deduced): QAbstractSlider::sliderChange(change);
-
472}
executed: }
Execution Count:30061
30061
473 -
474/*! -
475 \reimp -
476*/ -
477bool QScrollBar::event(QEvent *event) -
478{ -
479 switch(event->type()) { -
480 case QEvent::HoverEnter: -
481 case QEvent::HoverLeave: -
482 case QEvent::HoverMove: -
483 if (const QHoverEvent *he = static_cast<const QHoverEvent *>(event))
never evaluated: const QHoverEvent *he = static_cast<const QHoverEvent *>(event)
0
484 d_func()->updateHoverControl(he->pos());
never executed: d_func()->updateHoverControl(he->pos());
0
485 break;
never executed: break;
0
486 case QEvent::StyleChange: -
487 d_func()->setTransient(style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, this));
executed (the execution status of this line is deduced): d_func()->setTransient(style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, this));
-
488 break;
executed: break;
Execution Count:790
790
489 default: -
490 break;
executed: break;
Execution Count:24747
24747
491 } -
492 return QAbstractSlider::event(event);
executed: return QAbstractSlider::event(event);
Execution Count:25537
25537
493} -
494 -
495/*! -
496 \reimp -
497*/ -
498#ifndef QT_NO_WHEELEVENT -
499void QScrollBar::wheelEvent(QWheelEvent *event) -
500{ -
501 event->ignore();
executed (the execution status of this line is deduced): event->ignore();
-
502 int delta = event->delta();
executed (the execution status of this line is deduced): int delta = event->delta();
-
503 // scrollbar is a special case - in vertical mode it reaches minimum -
504 // value in the upper position, however QSlider's minimum value is on -
505 // the bottom. So we need to invert a value, but since the scrollbar is -
506 // inverted by default, we need to inverse the delta value for the -
507 // horizontal orientation. -
508 if (event->orientation() == Qt::Horizontal)
evaluated: event->orientation() == Qt::Horizontal
TRUEFALSE
yes
Evaluation Count:4
yes
Evaluation Count:5
4-5
509 delta = -delta;
executed: delta = -delta;
Execution Count:4
4
510 Q_D(QScrollBar);
executed (the execution status of this line is deduced): QScrollBarPrivate * const d = d_func();
-
511 if (d->scrollByDelta(event->orientation(), event->modifiers(), delta))
evaluated: d->scrollByDelta(event->orientation(), event->modifiers(), delta)
TRUEFALSE
yes
Evaluation Count:7
yes
Evaluation Count:2
2-7
512 event->accept();
executed: event->accept();
Execution Count:7
7
513}
executed: }
Execution Count:9
9
514#endif -
515 -
516/*! -
517 \reimp -
518*/ -
519void QScrollBar::paintEvent(QPaintEvent *) -
520{ -
521 Q_D(QScrollBar);
executed (the execution status of this line is deduced): QScrollBarPrivate * const d = d_func();
-
522 QPainter p(this);
executed (the execution status of this line is deduced): QPainter p(this);
-
523 QStyleOptionSlider opt;
executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
524 initStyleOption(&opt);
executed (the execution status of this line is deduced): initStyleOption(&opt);
-
525 opt.subControls = QStyle::SC_All;
executed (the execution status of this line is deduced): opt.subControls = QStyle::SC_All;
-
526 if (d->pressedControl) {
evaluated: d->pressedControl
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3081
1-3081
527 opt.activeSubControls = (QStyle::SubControl)d->pressedControl;
executed (the execution status of this line is deduced): opt.activeSubControls = (QStyle::SubControl)d->pressedControl;
-
528 if (!d->pointerOutsidePressedControl)
partially evaluated: !d->pointerOutsidePressedControl
TRUEFALSE
yes
Evaluation Count:1
no
Evaluation Count:0
0-1
529 opt.state |= QStyle::State_Sunken;
executed: opt.state |= QStyle::State_Sunken;
Execution Count:1
1
530 } else {
executed: }
Execution Count:1
1
531 opt.activeSubControls = (QStyle::SubControl)d->hoverControl;
executed (the execution status of this line is deduced): opt.activeSubControls = (QStyle::SubControl)d->hoverControl;
-
532 }
executed: }
Execution Count:3081
3081
533 style()->drawComplexControl(QStyle::CC_ScrollBar, &opt, &p, this);
executed (the execution status of this line is deduced): style()->drawComplexControl(QStyle::CC_ScrollBar, &opt, &p, this);
-
534 if (d->flashed && style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, this)) {
partially evaluated: d->flashed
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:3082
never evaluated: style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, this)
0-3082
535 d->flashed = false;
never executed (the execution status of this line is deduced): d->flashed = false;
-
536 update();
never executed (the execution status of this line is deduced): update();
-
537 }
never executed: }
0
538}
executed: }
Execution Count:3082
3082
539 -
540/*! -
541 \reimp -
542*/ -
543void QScrollBar::mousePressEvent(QMouseEvent *e) -
544{ -
545 Q_D(QScrollBar);
executed (the execution status of this line is deduced): QScrollBarPrivate * const d = d_func();
-
546 -
547 if (d->repeatActionTimer.isActive())
partially evaluated: d->repeatActionTimer.isActive()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
548 d->stopRepeatAction();
never executed: d->stopRepeatAction();
0
549 -
550 bool midButtonAbsPos = style()->styleHint(QStyle::SH_ScrollBar_MiddleClickAbsolutePosition,
executed (the execution status of this line is deduced): bool midButtonAbsPos = style()->styleHint(QStyle::SH_ScrollBar_MiddleClickAbsolutePosition,
-
551 0, this);
executed (the execution status of this line is deduced): 0, this);
-
552 QStyleOptionSlider opt;
executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
553 initStyleOption(&opt);
executed (the execution status of this line is deduced): initStyleOption(&opt);
-
554 -
555 if (d->maximum == d->minimum // no range
partially evaluated: d->maximum == d->minimum
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
556 || (e->buttons() & (~e->button())) // another button was clicked before
partially evaluated: (e->buttons() & (~e->button()))
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
557 || !(e->button() == Qt::LeftButton || (midButtonAbsPos && e->button() == Qt::MidButton)))
partially evaluated: e->button() == Qt::LeftButton
TRUEFALSE
yes
Evaluation Count:4
no
Evaluation Count:0
never evaluated: midButtonAbsPos
never evaluated: e->button() == Qt::MidButton
0-4
558 return;
never executed: return;
0
559 -
560 d->pressedControl = style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, e->pos(), this);
executed (the execution status of this line is deduced): d->pressedControl = style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, e->pos(), this);
-
561 d->pointerOutsidePressedControl = false;
executed (the execution status of this line is deduced): d->pointerOutsidePressedControl = false;
-
562 -
563 QRect sr = style()->subControlRect(QStyle::CC_ScrollBar, &opt,
executed (the execution status of this line is deduced): QRect sr = style()->subControlRect(QStyle::CC_ScrollBar, &opt,
-
564 QStyle::SC_ScrollBarSlider, this);
executed (the execution status of this line is deduced): QStyle::SC_ScrollBarSlider, this);
-
565 QPoint click = e->pos();
executed (the execution status of this line is deduced): QPoint click = e->pos();
-
566 QPoint pressValue = click - sr.center() + sr.topLeft();
executed (the execution status of this line is deduced): QPoint pressValue = click - sr.center() + sr.topLeft();
-
567 d->pressValue = d->orientation == Qt::Horizontal ? d->pixelPosToRangeValue(pressValue.x()) :
evaluated: d->orientation == Qt::Horizontal
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
568 d->pixelPosToRangeValue(pressValue.y());
executed (the execution status of this line is deduced): d->pixelPosToRangeValue(pressValue.y());
-
569 if (d->pressedControl == QStyle::SC_ScrollBarSlider) {
evaluated: d->pressedControl == QStyle::SC_ScrollBarSlider
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
570 d->clickOffset = HORIZONTAL ? (click.x()-sr.x()) : (click.y()-sr.y());
partially evaluated: (d_func()->orientation == Qt::Horizontal)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
571 d->snapBackPosition = d->position;
executed (the execution status of this line is deduced): d->snapBackPosition = d->position;
-
572 }
executed: }
Execution Count:1
1
573 -
574 if ((d->pressedControl == QStyle::SC_ScrollBarAddPage
evaluated: d->pressedControl == QStyle::SC_ScrollBarAddPage
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
575 || d->pressedControl == QStyle::SC_ScrollBarSubPage)
partially evaluated: d->pressedControl == QStyle::SC_ScrollBarSubPage
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:3
0-3
576 && ((midButtonAbsPos && e->button() == Qt::MidButton)
partially evaluated: midButtonAbsPos
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
never evaluated: e->button() == Qt::MidButton
0-1
577 || (style()->styleHint(QStyle::SH_ScrollBar_LeftClickAbsolutePosition, &opt, this)
partially evaluated: style()->styleHint(QStyle::SH_ScrollBar_LeftClickAbsolutePosition, &opt, this)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
578 && e->button() == Qt::LeftButton))) {
never evaluated: e->button() == Qt::LeftButton
0
579 int sliderLength = HORIZONTAL ? sr.width() : sr.height();
never evaluated: (d_func()->orientation == Qt::Horizontal)
0
580 setSliderPosition(d->pixelPosToRangeValue((HORIZONTAL ? e->pos().x()
never executed (the execution status of this line is deduced): setSliderPosition(d->pixelPosToRangeValue(((d_func()->orientation == Qt::Horizontal) ? e->pos().x()
-
581 : e->pos().y()) - sliderLength / 2));
never executed (the execution status of this line is deduced): : e->pos().y()) - sliderLength / 2));
-
582 d->pressedControl = QStyle::SC_ScrollBarSlider;
never executed (the execution status of this line is deduced): d->pressedControl = QStyle::SC_ScrollBarSlider;
-
583 d->clickOffset = sliderLength / 2;
never executed (the execution status of this line is deduced): d->clickOffset = sliderLength / 2;
-
584 }
never executed: }
0
585 const int initialDelay = 500; // default threshold
executed (the execution status of this line is deduced): const int initialDelay = 500;
-
586 d->activateControl(d->pressedControl, initialDelay);
executed (the execution status of this line is deduced): d->activateControl(d->pressedControl, initialDelay);
-
587 QElapsedTimer time;
executed (the execution status of this line is deduced): QElapsedTimer time;
-
588 time.start();
executed (the execution status of this line is deduced): time.start();
-
589 repaint(style()->subControlRect(QStyle::CC_ScrollBar, &opt, d->pressedControl, this));
executed (the execution status of this line is deduced): repaint(style()->subControlRect(QStyle::CC_ScrollBar, &opt, d->pressedControl, this));
-
590 if (time.elapsed() >= initialDelay && d->repeatActionTimer.isActive()) {
evaluated: time.elapsed() >= initialDelay
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
partially evaluated: d->repeatActionTimer.isActive()
TRUEFALSE
yes
Evaluation Count:1
no
Evaluation Count:0
0-3
591 // It took more than 500ms (the initial timer delay) to process the repaint(), we -
592 // therefore need to restart the timer in case we have a pending mouse release event; -
593 // otherwise we'll get a timer event right before the release event, -
594 // causing the repeat action to be invoked twice on a single mouse click. -
595 // 50ms is the default repeat time (see activateControl/setRepeatAction). -
596 d->repeatActionTimer.start(50, this);
executed (the execution status of this line is deduced): d->repeatActionTimer.start(50, this);
-
597 }
executed: }
Execution Count:1
1
598 if (d->pressedControl == QStyle::SC_ScrollBarSlider)
evaluated: d->pressedControl == QStyle::SC_ScrollBarSlider
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
599 setSliderDown(true);
executed: setSliderDown(true);
Execution Count:1
1
600}
executed: }
Execution Count:4
4
601 -
602 -
603/*! -
604 \reimp -
605*/ -
606void QScrollBar::mouseReleaseEvent(QMouseEvent *e) -
607{ -
608 Q_D(QScrollBar);
executed (the execution status of this line is deduced): QScrollBarPrivate * const d = d_func();
-
609 if (!d->pressedControl)
evaluated: !d->pressedControl
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
610 return;
executed: return;
Execution Count:1
1
611 -
612 if (e->buttons() & (~e->button())) // some other button is still pressed
partially evaluated: e->buttons() & (~e->button())
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:3
0-3
613 return;
never executed: return;
0
614 -
615 d->stopRepeatAction();
executed (the execution status of this line is deduced): d->stopRepeatAction();
-
616}
executed: }
Execution Count:3
3
617 -
618 -
619/*! -
620 \reimp -
621*/ -
622void QScrollBar::mouseMoveEvent(QMouseEvent *e) -
623{ -
624 Q_D(QScrollBar);
never executed (the execution status of this line is deduced): QScrollBarPrivate * const d = d_func();
-
625 if (!d->pressedControl)
never evaluated: !d->pressedControl
0
626 return;
never executed: return;
0
627 -
628 QStyleOptionSlider opt;
never executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
629 initStyleOption(&opt);
never executed (the execution status of this line is deduced): initStyleOption(&opt);
-
630 if (!(e->buttons() & Qt::LeftButton
never evaluated: e->buttons() & Qt::LeftButton
0
631 || ((e->buttons() & Qt::MidButton)
never evaluated: (e->buttons() & Qt::MidButton)
0
632 && style()->styleHint(QStyle::SH_ScrollBar_MiddleClickAbsolutePosition, &opt, this))))
never evaluated: style()->styleHint(QStyle::SH_ScrollBar_MiddleClickAbsolutePosition, &opt, this)
0
633 return;
never executed: return;
0
634 -
635 if (d->pressedControl == QStyle::SC_ScrollBarSlider) {
never evaluated: d->pressedControl == QStyle::SC_ScrollBarSlider
0
636 QPoint click = e->pos();
never executed (the execution status of this line is deduced): QPoint click = e->pos();
-
637 int newPosition = d->pixelPosToRangeValue((HORIZONTAL ? click.x() : click.y()) -d->clickOffset);
never executed (the execution status of this line is deduced): int newPosition = d->pixelPosToRangeValue(((d_func()->orientation == Qt::Horizontal) ? click.x() : click.y()) -d->clickOffset);
-
638 int m = style()->pixelMetric(QStyle::PM_MaximumDragDistance, &opt, this);
never executed (the execution status of this line is deduced): int m = style()->pixelMetric(QStyle::PM_MaximumDragDistance, &opt, this);
-
639 if (m >= 0) {
never evaluated: m >= 0
0
640 QRect r = rect();
never executed (the execution status of this line is deduced): QRect r = rect();
-
641 r.adjust(-m, -m, m, m);
never executed (the execution status of this line is deduced): r.adjust(-m, -m, m, m);
-
642 if (! r.contains(e->pos()))
never evaluated: ! r.contains(e->pos())
0
643 newPosition = d->snapBackPosition;
never executed: newPosition = d->snapBackPosition;
0
644 }
never executed: }
0
645 setSliderPosition(newPosition);
never executed (the execution status of this line is deduced): setSliderPosition(newPosition);
-
646 } else if (!style()->styleHint(QStyle::SH_ScrollBar_ScrollWhenPointerLeavesControl, &opt, this)) {
never executed: }
never evaluated: !style()->styleHint(QStyle::SH_ScrollBar_ScrollWhenPointerLeavesControl, &opt, this)
0
647 -
648 if (style()->styleHint(QStyle::SH_ScrollBar_RollBetweenButtons, &opt, this)
never evaluated: style()->styleHint(QStyle::SH_ScrollBar_RollBetweenButtons, &opt, this)
0
649 && d->pressedControl & (QStyle::SC_ScrollBarAddLine | QStyle::SC_ScrollBarSubLine)) {
never evaluated: d->pressedControl & (QStyle::SC_ScrollBarAddLine | QStyle::SC_ScrollBarSubLine)
0
650 QStyle::SubControl newSc = style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, e->pos(), this);
never executed (the execution status of this line is deduced): QStyle::SubControl newSc = style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, e->pos(), this);
-
651 if (newSc == d->pressedControl && !d->pointerOutsidePressedControl)
never evaluated: newSc == d->pressedControl
never evaluated: !d->pointerOutsidePressedControl
0
652 return; // nothing to do
never executed: return;
0
653 if (newSc & (QStyle::SC_ScrollBarAddLine | QStyle::SC_ScrollBarSubLine)) {
never evaluated: newSc & (QStyle::SC_ScrollBarAddLine | QStyle::SC_ScrollBarSubLine)
0
654 d->pointerOutsidePressedControl = false;
never executed (the execution status of this line is deduced): d->pointerOutsidePressedControl = false;
-
655 QRect scRect = style()->subControlRect(QStyle::CC_ScrollBar, &opt, newSc, this);
never executed (the execution status of this line is deduced): QRect scRect = style()->subControlRect(QStyle::CC_ScrollBar, &opt, newSc, this);
-
656 scRect |= style()->subControlRect(QStyle::CC_ScrollBar, &opt, d->pressedControl, this);
never executed (the execution status of this line is deduced): scRect |= style()->subControlRect(QStyle::CC_ScrollBar, &opt, d->pressedControl, this);
-
657 d->pressedControl = newSc;
never executed (the execution status of this line is deduced): d->pressedControl = newSc;
-
658 d->activateControl(d->pressedControl, 0);
never executed (the execution status of this line is deduced): d->activateControl(d->pressedControl, 0);
-
659 update(scRect);
never executed (the execution status of this line is deduced): update(scRect);
-
660 return;
never executed: return;
0
661 } -
662 }
never executed: }
0
663 -
664 // stop scrolling when the mouse pointer leaves a control -
665 // similar to push buttons -
666 QRect pr = style()->subControlRect(QStyle::CC_ScrollBar, &opt, d->pressedControl, this);
never executed (the execution status of this line is deduced): QRect pr = style()->subControlRect(QStyle::CC_ScrollBar, &opt, d->pressedControl, this);
-
667 if (pr.contains(e->pos()) == d->pointerOutsidePressedControl) {
never evaluated: pr.contains(e->pos()) == d->pointerOutsidePressedControl
0
668 if ((d->pointerOutsidePressedControl = !d->pointerOutsidePressedControl)) {
never evaluated: (d->pointerOutsidePressedControl = !d->pointerOutsidePressedControl)
0
669 d->pointerOutsidePressedControl = true;
never executed (the execution status of this line is deduced): d->pointerOutsidePressedControl = true;
-
670 setRepeatAction(SliderNoAction);
never executed (the execution status of this line is deduced): setRepeatAction(SliderNoAction);
-
671 repaint(pr);
never executed (the execution status of this line is deduced): repaint(pr);
-
672 } else {
never executed: }
0
673 d->activateControl(d->pressedControl);
never executed (the execution status of this line is deduced): d->activateControl(d->pressedControl);
-
674 }
never executed: }
0
675 } -
676 }
never executed: }
0
677} -
678 -
679 -
680int QScrollBarPrivate::pixelPosToRangeValue(int pos) const -
681{ -
682 Q_Q(const QScrollBar);
executed (the execution status of this line is deduced): const QScrollBar * const q = q_func();
-
683 QStyleOptionSlider opt;
executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
684 q->initStyleOption(&opt);
executed (the execution status of this line is deduced): q->initStyleOption(&opt);
-
685 QRect gr = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
executed (the execution status of this line is deduced): QRect gr = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
-
686 QStyle::SC_ScrollBarGroove, q);
executed (the execution status of this line is deduced): QStyle::SC_ScrollBarGroove, q);
-
687 QRect sr = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
executed (the execution status of this line is deduced): QRect sr = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
-
688 QStyle::SC_ScrollBarSlider, q);
executed (the execution status of this line is deduced): QStyle::SC_ScrollBarSlider, q);
-
689 int sliderMin, sliderMax, sliderLength;
executed (the execution status of this line is deduced): int sliderMin, sliderMax, sliderLength;
-
690 -
691 if (orientation == Qt::Horizontal) {
evaluated: orientation == Qt::Horizontal
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:3
1-3
692 sliderLength = sr.width();
executed (the execution status of this line is deduced): sliderLength = sr.width();
-
693 sliderMin = gr.x();
executed (the execution status of this line is deduced): sliderMin = gr.x();
-
694 sliderMax = gr.right() - sliderLength + 1;
executed (the execution status of this line is deduced): sliderMax = gr.right() - sliderLength + 1;
-
695 if (q->layoutDirection() == Qt::RightToLeft)
partially evaluated: q->layoutDirection() == Qt::RightToLeft
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
696 opt.upsideDown = !opt.upsideDown;
never executed: opt.upsideDown = !opt.upsideDown;
0
697 } else {
executed: }
Execution Count:1
1
698 sliderLength = sr.height();
executed (the execution status of this line is deduced): sliderLength = sr.height();
-
699 sliderMin = gr.y();
executed (the execution status of this line is deduced): sliderMin = gr.y();
-
700 sliderMax = gr.bottom() - sliderLength + 1;
executed (the execution status of this line is deduced): sliderMax = gr.bottom() - sliderLength + 1;
-
701 }
executed: }
Execution Count:3
3
702 -
703 return QStyle::sliderValueFromPosition(minimum, maximum, pos - sliderMin,
executed: return QStyle::sliderValueFromPosition(minimum, maximum, pos - sliderMin, sliderMax - sliderMin, opt.upsideDown);
Execution Count:4
4
704 sliderMax - sliderMin, opt.upsideDown);
executed: return QStyle::sliderValueFromPosition(minimum, maximum, pos - sliderMin, sliderMax - sliderMin, opt.upsideDown);
Execution Count:4
4
705} -
706 -
707/*! \reimp -
708*/ -
709void QScrollBar::hideEvent(QHideEvent *) -
710{ -
711 Q_D(QScrollBar);
executed (the execution status of this line is deduced): QScrollBarPrivate * const d = d_func();
-
712 if (d->pressedControl) {
evaluated: d->pressedControl
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:1027
1-1027
713 d->pressedControl = QStyle::SC_None;
executed (the execution status of this line is deduced): d->pressedControl = QStyle::SC_None;
-
714 setRepeatAction(SliderNoAction);
executed (the execution status of this line is deduced): setRepeatAction(SliderNoAction);
-
715 }
executed: }
Execution Count:1
1
716}
executed: }
Execution Count:1028
1028
717 -
718/*! \internal -
719 Returns the style option for scroll bar. -
720*/ -
721Q_WIDGETS_EXPORT QStyleOptionSlider qt_qscrollbarStyleOption(QScrollBar *scrollbar) -
722{ -
723 QStyleOptionSlider opt;
executed (the execution status of this line is deduced): QStyleOptionSlider opt;
-
724 scrollbar->initStyleOption(&opt);
executed (the execution status of this line is deduced): scrollbar->initStyleOption(&opt);
-
725 return opt;
executed: return opt;
Execution Count:5
5
726} -
727 -
728QT_END_NAMESPACE -
729 -
730#endif // QT_NO_SCROLLBAR -
731 -
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