widgets/qabstractslider.cpp

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41 -
42#include <qapplication.h> -
43#include "qabstractslider.h" -
44#include "qevent.h" -
45#include "qabstractslider_p.h" -
46#include "qdebug.h" -
47#ifndef QT_NO_ACCESSIBILITY -
48#include "qaccessible.h" -
49#endif -
50#include <limits.h> -
51 -
52QT_BEGIN_NAMESPACE -
53 -
54/*! -
55 \class QAbstractSlider -
56 \brief The QAbstractSlider class provides an integer value within a range. -
57 -
58 \ingroup abstractwidgets -
59 \inmodule QtWidgets -
60 -
61 The class is designed as a common super class for widgets like -
62 QScrollBar, QSlider and QDial. -
63 -
64 Here are the main properties of the class: -
65 -
66 \list 1 -
67 -
68 \li \l value: The bounded integer that QAbstractSlider maintains. -
69 -
70 \li \l minimum: The lowest possible value. -
71 -
72 \li \l maximum: The highest possible value. -
73 -
74 \li \l singleStep: The smaller of two natural steps that an -
75 abstract sliders provides and typically corresponds to the user -
76 pressing an arrow key. -
77 -
78 \li \l pageStep: The larger of two natural steps that an abstract -
79 slider provides and typically corresponds to the user pressing -
80 PageUp or PageDown. -
81 -
82 \li \l tracking: Whether slider tracking is enabled. -
83 -
84 \li \l sliderPosition: The current position of the slider. If \l -
85 tracking is enabled (the default), this is identical to \l value. -
86 -
87 \endlist -
88 -
89 Unity (1) may be viewed as a third step size. setValue() lets you -
90 set the current value to any integer in the allowed range, not -
91 just minimum() + \e n * singleStep() for integer values of \e n. -
92 Some widgets may allow the user to set any value at all; others -
93 may just provide multiples of singleStep() or pageStep(). -
94 -
95 QAbstractSlider emits a comprehensive set of signals: -
96 -
97 \table -
98 \header \li Signal \li Emitted when -
99 \row \li \l valueChanged() -
100 \li the value has changed. The \l tracking -
101 determines whether this signal is emitted during user -
102 interaction. -
103 \row \li \l sliderPressed() -
104 \li the user starts to drag the slider. -
105 \row \li \l sliderMoved() -
106 \li the user drags the slider. -
107 \row \li \l sliderReleased() -
108 \li the user releases the slider. -
109 \row \li \l actionTriggered() -
110 \li a slider action was triggerd. -
111 \row \li \l rangeChanged() -
112 \li a the range has changed. -
113 \endtable -
114 -
115 QAbstractSlider provides a virtual sliderChange() function that is -
116 well suited for updating the on-screen representation of -
117 sliders. By calling triggerAction(), subclasses trigger slider -
118 actions. Two helper functions QStyle::sliderPositionFromValue() and -
119 QStyle::sliderValueFromPosition() help subclasses and styles to map -
120 screen coordinates to logical range values. -
121 -
122 \sa QAbstractSpinBox, QSlider, QDial, QScrollBar, {Sliders Example} -
123*/ -
124 -
125/*! -
126 \enum QAbstractSlider::SliderAction -
127 -
128 \value SliderNoAction -
129 \value SliderSingleStepAdd -
130 \value SliderSingleStepSub -
131 \value SliderPageStepAdd -
132 \value SliderPageStepSub -
133 \value SliderToMinimum -
134 \value SliderToMaximum -
135 \value SliderMove -
136 -
137*/ -
138 -
139/*! -
140 \fn void QAbstractSlider::valueChanged(int value) -
141 -
142 This signal is emitted when the slider value has changed, with the -
143 new slider \a value as argument. -
144*/ -
145 -
146/*! -
147 \fn void QAbstractSlider::sliderPressed() -
148 -
149 This signal is emitted when the user presses the slider with the -
150 mouse, or programmatically when setSliderDown(true) is called. -
151 -
152 \sa sliderReleased(), sliderMoved(), isSliderDown() -
153*/ -
154 -
155/*! -
156 \fn void QAbstractSlider::sliderMoved(int value) -
157 -
158 This signal is emitted when sliderDown is true and the slider moves. This -
159 usually happens when the user is dragging the slider. The \a value -
160 is the new slider position. -
161 -
162 This signal is emitted even when tracking is turned off. -
163 -
164 \sa setTracking(), valueChanged(), isSliderDown(), -
165 sliderPressed(), sliderReleased() -
166*/ -
167 -
168/*! -
169 \fn void QAbstractSlider::sliderReleased() -
170 -
171 This signal is emitted when the user releases the slider with the -
172 mouse, or programmatically when setSliderDown(false) is called. -
173 -
174 \sa sliderPressed(), sliderMoved(), sliderDown -
175*/ -
176 -
177/*! -
178 \fn void QAbstractSlider::rangeChanged(int min, int max) -
179 -
180 This signal is emitted when the slider range has changed, with \a -
181 min being the new minimum, and \a max being the new maximum. -
182 -
183 \sa minimum, maximum -
184*/ -
185 -
186/*! -
187 \fn void QAbstractSlider::actionTriggered(int action) -
188 -
189 This signal is emitted when the slider action \a action is -
190 triggered. Actions are \l SliderSingleStepAdd, \l -
191 SliderSingleStepSub, \l SliderPageStepAdd, \l SliderPageStepSub, -
192 \l SliderToMinimum, \l SliderToMaximum, and \l SliderMove. -
193 -
194 When the signal is emitted, the \l sliderPosition has been -
195 adjusted according to the action, but the \l value has not yet -
196 been propagated (meaning the valueChanged() signal was not yet -
197 emitted), and the visual display has not been updated. In slots -
198 connected to this signal you can thus safely adjust any action by -
199 calling setSliderPosition() yourself, based on both the action and -
200 the slider's value. -
201 -
202 \sa triggerAction() -
203*/ -
204 -
205/*! -
206 \enum QAbstractSlider::SliderChange -
207 -
208 \value SliderRangeChange -
209 \value SliderOrientationChange -
210 \value SliderStepsChange -
211 \value SliderValueChange -
212*/ -
213 -
214QAbstractSliderPrivate::QAbstractSliderPrivate() -
215 : minimum(0), maximum(99), pageStep(10), value(0), position(0), pressValue(-1), -
216 singleStep(1), offset_accumulated(0), tracking(true), -
217 blocktracking(false), pressed(false), -
218 invertedAppearance(false), invertedControls(false), -
219 orientation(Qt::Horizontal), repeatAction(QAbstractSlider::SliderNoAction) -
220#ifdef QT_KEYPAD_NAVIGATION -
221 , isAutoRepeating(false) -
222 , repeatMultiplier(1) -
223{ -
224 firstRepeat.invalidate(); -
225#else -
226{ -
227#endif -
228 -
229}
executed: }
Execution Count:10240
10240
230 -
231QAbstractSliderPrivate::~QAbstractSliderPrivate() -
232{ -
233} -
234 -
235/*! -
236 Sets the slider's minimum to \a min and its maximum to \a max. -
237 -
238 If \a max is smaller than \a min, \a min becomes the only legal -
239 value. -
240 -
241 \sa minimum, maximum -
242*/ -
243void QAbstractSlider::setRange(int min, int max) -
244{ -
245 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
246 int oldMin = d->minimum;
executed (the execution status of this line is deduced): int oldMin = d->minimum;
-
247 int oldMax = d->maximum;
executed (the execution status of this line is deduced): int oldMax = d->maximum;
-
248 d->minimum = min;
executed (the execution status of this line is deduced): d->minimum = min;
-
249 d->maximum = qMax(min, max);
executed (the execution status of this line is deduced): d->maximum = qMax(min, max);
-
250 if (oldMin != d->minimum || oldMax != d->maximum) {
evaluated: oldMin != d->minimum
TRUEFALSE
yes
Evaluation Count:805
yes
Evaluation Count:48877
evaluated: oldMax != d->maximum
TRUEFALSE
yes
Evaluation Count:12794
yes
Evaluation Count:36083
805-48877
251 sliderChange(SliderRangeChange);
executed (the execution status of this line is deduced): sliderChange(SliderRangeChange);
-
252 emit rangeChanged(d->minimum, d->maximum);
executed (the execution status of this line is deduced): rangeChanged(d->minimum, d->maximum);
-
253 setValue(d->value); // re-bound
executed (the execution status of this line is deduced): setValue(d->value);
-
254 }
executed: }
Execution Count:13599
13599
255}
executed: }
Execution Count:49682
49682
256 -
257 -
258void QAbstractSliderPrivate::setSteps(int single, int page) -
259{ -
260 Q_Q(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSlider * const q = q_func();
-
261 singleStep = qAbs(single);
executed (the execution status of this line is deduced): singleStep = qAbs(single);
-
262 pageStep = qAbs(page);
executed (the execution status of this line is deduced): pageStep = qAbs(page);
-
263 q->sliderChange(QAbstractSlider::SliderStepsChange);
executed (the execution status of this line is deduced): q->sliderChange(QAbstractSlider::SliderStepsChange);
-
264}
executed: }
Execution Count:7341
7341
265 -
266/*! -
267 Constructs an abstract slider. -
268 -
269 The \a parent argument is sent to the QWidget constructor. -
270 -
271 The \l minimum defaults to 0, the \l maximum to 99, with a \l -
272 singleStep size of 1 and a \l pageStep size of 10, and an initial -
273 \l value of 0. -
274*/ -
275QAbstractSlider::QAbstractSlider(QWidget *parent) -
276 :QWidget(*new QAbstractSliderPrivate, parent, 0) -
277{ -
278}
executed: }
Execution Count:2
2
279 -
280/*! \internal */ -
281QAbstractSlider::QAbstractSlider(QAbstractSliderPrivate &dd, QWidget *parent) -
282 :QWidget(dd, parent, 0) -
283{ -
284}
executed: }
Execution Count:10238
10238
285 -
286/*! -
287 Destroys the slider. -
288*/ -
289QAbstractSlider::~QAbstractSlider() -
290{ -
291} -
292 -
293/*! -
294 \property QAbstractSlider::orientation -
295 \brief the orientation of the slider -
296 -
297 The orientation must be \l Qt::Vertical (the default) or \l -
298 Qt::Horizontal. -
299*/ -
300void QAbstractSlider::setOrientation(Qt::Orientation orientation) -
301{ -
302 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
303 if (d->orientation == orientation)
evaluated: d->orientation == orientation
TRUEFALSE
yes
Evaluation Count:39
yes
Evaluation Count:28
28-39
304 return;
executed: return;
Execution Count:39
39
305 -
306 d->orientation = orientation;
executed (the execution status of this line is deduced): d->orientation = orientation;
-
307 if (!testAttribute(Qt::WA_WState_OwnSizePolicy)) {
partially evaluated: !testAttribute(Qt::WA_WState_OwnSizePolicy)
TRUEFALSE
yes
Evaluation Count:28
no
Evaluation Count:0
0-28
308 QSizePolicy sp = sizePolicy();
executed (the execution status of this line is deduced): QSizePolicy sp = sizePolicy();
-
309 sp.transpose();
executed (the execution status of this line is deduced): sp.transpose();
-
310 setSizePolicy(sp);
executed (the execution status of this line is deduced): setSizePolicy(sp);
-
311 setAttribute(Qt::WA_WState_OwnSizePolicy, false);
executed (the execution status of this line is deduced): setAttribute(Qt::WA_WState_OwnSizePolicy, false);
-
312 }
executed: }
Execution Count:28
28
313 update();
executed (the execution status of this line is deduced): update();
-
314 updateGeometry();
executed (the execution status of this line is deduced): updateGeometry();
-
315}
executed: }
Execution Count:28
28
316 -
317Qt::Orientation QAbstractSlider::orientation() const -
318{ -
319 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
320 return d->orientation;
executed: return d->orientation;
Execution Count:3934
3934
321} -
322 -
323 -
324/*! -
325 \property QAbstractSlider::minimum -
326 \brief the sliders's minimum value -
327 -
328 When setting this property, the \l maximum is adjusted if -
329 necessary to ensure that the range remains valid. Also the -
330 slider's current value is adjusted to be within the new range. -
331 -
332*/ -
333 -
334void QAbstractSlider::setMinimum(int min) -
335{ -
336 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
337 setRange(min, qMax(d->maximum, min));
executed (the execution status of this line is deduced): setRange(min, qMax(d->maximum, min));
-
338}
executed: }
Execution Count:22
22
339 -
340int QAbstractSlider::minimum() const -
341{ -
342 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
343 return d->minimum;
executed: return d->minimum;
Execution Count:30871
30871
344} -
345 -
346 -
347/*! -
348 \property QAbstractSlider::maximum -
349 \brief the slider's maximum value -
350 -
351 When setting this property, the \l minimum is adjusted if -
352 necessary to ensure that the range remains valid. Also the -
353 slider's current value is adjusted to be within the new range. -
354 -
355 -
356*/ -
357 -
358void QAbstractSlider::setMaximum(int max) -
359{ -
360 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
361 setRange(qMin(d->minimum, max), max);
executed (the execution status of this line is deduced): setRange(qMin(d->minimum, max), max);
-
362}
executed: }
Execution Count:22
22
363 -
364int QAbstractSlider::maximum() const -
365{ -
366 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
367 return d->maximum;
executed: return d->maximum;
Execution Count:48561
48561
368} -
369 -
370 -
371 -
372/*! -
373 \property QAbstractSlider::singleStep -
374 \brief the single step. -
375 -
376 The smaller of two natural steps that an -
377 abstract sliders provides and typically corresponds to the user -
378 pressing an arrow key. -
379 -
380 If the property is modified during an auto repeating key event, behavior -
381 is undefined. -
382 -
383 \sa pageStep -
384*/ -
385 -
386void QAbstractSlider::setSingleStep(int step) -
387{ -
388 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
389 if (step != d->singleStep)
evaluated: step != d->singleStep
TRUEFALSE
yes
Evaluation Count:2247
yes
Evaluation Count:22033
2247-22033
390 d->setSteps(step, d->pageStep);
executed: d->setSteps(step, d->pageStep);
Execution Count:2247
2247
391}
executed: }
Execution Count:24280
24280
392 -
393int QAbstractSlider::singleStep() const -
394{ -
395 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
396 return d->singleStep;
executed: return d->singleStep;
Execution Count:104
104
397} -
398 -
399 -
400/*! -
401 \property QAbstractSlider::pageStep -
402 \brief the page step. -
403 -
404 The larger of two natural steps that an abstract slider provides -
405 and typically corresponds to the user pressing PageUp or PageDown. -
406 -
407 \sa singleStep -
408*/ -
409 -
410void QAbstractSlider::setPageStep(int step) -
411{ -
412 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
413 if (step != d->pageStep)
evaluated: step != d->pageStep
TRUEFALSE
yes
Evaluation Count:5094
yes
Evaluation Count:19841
5094-19841
414 d->setSteps(d->singleStep, step);
executed: d->setSteps(d->singleStep, step);
Execution Count:5094
5094
415}
executed: }
Execution Count:24935
24935
416 -
417int QAbstractSlider::pageStep() const -
418{ -
419 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
420 return d->pageStep;
executed: return d->pageStep;
Execution Count:2952
2952
421} -
422 -
423/*! -
424 \property QAbstractSlider::tracking -
425 \brief whether slider tracking is enabled -
426 -
427 If tracking is enabled (the default), the slider emits the -
428 valueChanged() signal while the slider is being dragged. If -
429 tracking is disabled, the slider emits the valueChanged() signal -
430 only when the user releases the slider. -
431 -
432 \sa sliderDown -
433*/ -
434void QAbstractSlider::setTracking(bool enable) -
435{ -
436 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
437 d->tracking = enable;
executed (the execution status of this line is deduced): d->tracking = enable;
-
438}
executed: }
Execution Count:39
39
439 -
440bool QAbstractSlider::hasTracking() const -
441{ -
442 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
443 return d->tracking;
executed: return d->tracking;
Execution Count:10
10
444} -
445 -
446 -
447/*! -
448 \property QAbstractSlider::sliderDown -
449 \brief whether the slider is pressed down. -
450 -
451 The property is set by subclasses in order to let the abstract -
452 slider know whether or not \l tracking has any effect. -
453 -
454 Changing the slider down property emits the sliderPressed() and -
455 sliderReleased() signals. -
456 -
457*/ -
458void QAbstractSlider::setSliderDown(bool down) -
459{ -
460 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
461 bool doEmit = d->pressed != down;
executed (the execution status of this line is deduced): bool doEmit = d->pressed != down;
-
462 -
463 d->pressed = down;
executed (the execution status of this line is deduced): d->pressed = down;
-
464 -
465 if (doEmit) {
evaluated: doEmit
TRUEFALSE
yes
Evaluation Count:14
yes
Evaluation Count:33
14-33
466 if (down)
evaluated: down
TRUEFALSE
yes
Evaluation Count:8
yes
Evaluation Count:6
6-8
467 emit sliderPressed();
executed: sliderPressed();
Execution Count:8
8
468 else -
469 emit sliderReleased();
executed: sliderReleased();
Execution Count:6
6
470 } -
471 -
472 if (!down && d->position != d->value)
evaluated: !down
TRUEFALSE
yes
Evaluation Count:39
yes
Evaluation Count:8
evaluated: d->position != d->value
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:38
1-39
473 triggerAction(SliderMove);
executed: triggerAction(SliderMove);
Execution Count:1
1
474}
executed: }
Execution Count:47
47
475 -
476bool QAbstractSlider::isSliderDown() const -
477{ -
478 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
479 return d->pressed;
executed: return d->pressed;
Execution Count:8
8
480} -
481 -
482 -
483/*! -
484 \property QAbstractSlider::sliderPosition -
485 \brief the current slider position -
486 -
487 If \l tracking is enabled (the default), this is identical to \l value. -
488*/ -
489void QAbstractSlider::setSliderPosition(int position) -
490{ -
491 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
492 position = d->bound(position);
executed (the execution status of this line is deduced): position = d->bound(position);
-
493 if (position == d->position)
evaluated: position == d->position
TRUEFALSE
yes
Evaluation Count:25
yes
Evaluation Count:227
25-227
494 return;
executed: return;
Execution Count:25
25
495 d->position = position;
executed (the execution status of this line is deduced): d->position = position;
-
496 if (!d->tracking)
evaluated: !d->tracking
TRUEFALSE
yes
Evaluation Count:11
yes
Evaluation Count:216
11-216
497 update();
executed: update();
Execution Count:11
11
498 if (d->pressed)
evaluated: d->pressed
TRUEFALSE
yes
Evaluation Count:6
yes
Evaluation Count:221
6-221
499 emit sliderMoved(position);
executed: sliderMoved(position);
Execution Count:6
6
500 if (d->tracking && !d->blocktracking)
evaluated: d->tracking
TRUEFALSE
yes
Evaluation Count:216
yes
Evaluation Count:11
evaluated: !d->blocktracking
TRUEFALSE
yes
Evaluation Count:91
yes
Evaluation Count:125
11-216
501 triggerAction(SliderMove);
executed: triggerAction(SliderMove);
Execution Count:91
91
502}
executed: }
Execution Count:227
227
503 -
504int QAbstractSlider::sliderPosition() const -
505{ -
506 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
507 return d->position;
executed: return d->position;
Execution Count:178
178
508} -
509 -
510 -
511/*! -
512 \property QAbstractSlider::value -
513 \brief the slider's current value -
514 -
515 The slider forces the value to be within the legal range: \l -
516 minimum <= \c value <= \l maximum. -
517 -
518 Changing the value also changes the \l sliderPosition. -
519*/ -
520 -
521 -
522int QAbstractSlider::value() const -
523{ -
524 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
525 return d->value;
executed: return d->value;
Execution Count:122880
122880
526} -
527 -
528void QAbstractSlider::setValue(int value) -
529{ -
530 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
531 value = d->bound(value);
executed (the execution status of this line is deduced): value = d->bound(value);
-
532 if (d->value == value && d->position == value)
evaluated: d->value == value
TRUEFALSE
yes
Evaluation Count:19224
yes
Evaluation Count:9513
evaluated: d->position == value
TRUEFALSE
yes
Evaluation Count:19222
yes
Evaluation Count:2
2-19224
533 return;
executed: return;
Execution Count:19222
19222
534 d->value = value;
executed (the execution status of this line is deduced): d->value = value;
-
535 if (d->position != value) {
evaluated: d->position != value
TRUEFALSE
yes
Evaluation Count:9272
yes
Evaluation Count:243
243-9272
536 d->position = value;
executed (the execution status of this line is deduced): d->position = value;
-
537 if (d->pressed)
evaluated: d->pressed
TRUEFALSE
yes
Evaluation Count:4
yes
Evaluation Count:9268
4-9268
538 emit sliderMoved((d->position = value));
executed: sliderMoved((d->position = value));
Execution Count:4
4
539 }
executed: }
Execution Count:9272
9272
540#ifndef QT_NO_ACCESSIBILITY -
541 QAccessibleValueChangeEvent event(this, d->value);
executed (the execution status of this line is deduced): QAccessibleValueChangeEvent event(this, d->value);
-
542 QAccessible::updateAccessibility(&event);
executed (the execution status of this line is deduced): QAccessible::updateAccessibility(&event);
-
543#endif -
544 sliderChange(SliderValueChange);
executed (the execution status of this line is deduced): sliderChange(SliderValueChange);
-
545 emit valueChanged(value);
executed (the execution status of this line is deduced): valueChanged(value);
-
546}
executed: }
Execution Count:9515
9515
547 -
548/*! -
549 \property QAbstractSlider::invertedAppearance -
550 \brief whether or not a slider shows its values inverted. -
551 -
552 If this property is false (the default), the minimum and maximum will -
553 be shown in its classic position for the inherited widget. If the -
554 value is true, the minimum and maximum appear at their opposite location. -
555 -
556 Note: This property makes most sense for sliders and dials. For -
557 scroll bars, the visual effect of the scroll bar subcontrols depends on -
558 whether or not the styles understand inverted appearance; most styles -
559 ignore this property for scroll bars. -
560*/ -
561 -
562bool QAbstractSlider::invertedAppearance() const -
563{ -
564 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
565 return d->invertedAppearance;
executed: return d->invertedAppearance;
Execution Count:14
14
566} -
567 -
568void QAbstractSlider::setInvertedAppearance(bool invert) -
569{ -
570 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
571 d->invertedAppearance = invert;
executed (the execution status of this line is deduced): d->invertedAppearance = invert;
-
572 update();
executed (the execution status of this line is deduced): update();
-
573}
executed: }
Execution Count:54
54
574 -
575 -
576/*! -
577 \property QAbstractSlider::invertedControls -
578 \brief whether or not the slider inverts its wheel and key events. -
579 -
580 If this property is false, scrolling the mouse wheel "up" and using keys -
581 like page up will increase the slider's value towards its maximum. Otherwise -
582 pressing page up will move value towards the slider's minimum. -
583*/ -
584 -
585 -
586bool QAbstractSlider::invertedControls() const -
587{ -
588 Q_D(const QAbstractSlider);
executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
589 return d->invertedControls;
executed: return d->invertedControls;
Execution Count:10
10
590} -
591 -
592void QAbstractSlider::setInvertedControls(bool invert) -
593{ -
594 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
595 d->invertedControls = invert;
executed (the execution status of this line is deduced): d->invertedControls = invert;
-
596}
executed: }
Execution Count:62
62
597 -
598/*! Triggers a slider \a action. Possible actions are \l -
599 SliderSingleStepAdd, \l SliderSingleStepSub, \l SliderPageStepAdd, -
600 \l SliderPageStepSub, \l SliderToMinimum, \l SliderToMaximum, and \l -
601 SliderMove. -
602 -
603 \sa actionTriggered() -
604 */ -
605void QAbstractSlider::triggerAction(SliderAction action) -
606{ -
607 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
608 d->blocktracking = true;
executed (the execution status of this line is deduced): d->blocktracking = true;
-
609 switch (action) { -
610 case SliderSingleStepAdd: -
611 setSliderPosition(d->overflowSafeAdd(d->effectiveSingleStep()));
executed (the execution status of this line is deduced): setSliderPosition(d->overflowSafeAdd(d->effectiveSingleStep()));
-
612 break;
executed: break;
Execution Count:41
41
613 case SliderSingleStepSub: -
614 setSliderPosition(d->overflowSafeAdd(-d->effectiveSingleStep()));
executed (the execution status of this line is deduced): setSliderPosition(d->overflowSafeAdd(-d->effectiveSingleStep()));
-
615 break;
executed: break;
Execution Count:40
40
616 case SliderPageStepAdd: -
617 setSliderPosition(d->overflowSafeAdd(d->pageStep));
executed (the execution status of this line is deduced): setSliderPosition(d->overflowSafeAdd(d->pageStep));
-
618 break;
executed: break;
Execution Count:25
25
619 case SliderPageStepSub: -
620 setSliderPosition(d->overflowSafeAdd(-d->pageStep));
executed (the execution status of this line is deduced): setSliderPosition(d->overflowSafeAdd(-d->pageStep));
-
621 break;
executed: break;
Execution Count:17
17
622 case SliderToMinimum: -
623 setSliderPosition(d->minimum);
executed (the execution status of this line is deduced): setSliderPosition(d->minimum);
-
624 break;
executed: break;
Execution Count:9
9
625 case SliderToMaximum: -
626 setSliderPosition(d->maximum);
executed (the execution status of this line is deduced): setSliderPosition(d->maximum);
-
627 break;
executed: break;
Execution Count:9
9
628 case SliderMove: -
629 case SliderNoAction: -
630 break;
executed: break;
Execution Count:119
119
631 }; -
632 emit actionTriggered(action);
executed (the execution status of this line is deduced): actionTriggered(action);
-
633 d->blocktracking = false;
executed (the execution status of this line is deduced): d->blocktracking = false;
-
634 setValue(d->position);
executed (the execution status of this line is deduced): setValue(d->position);
-
635}
executed: }
Execution Count:260
260
636 -
637/*! Sets action \a action to be triggered repetitively in intervals -
638of \a repeatTime, after an initial delay of \a thresholdTime. -
639 -
640\sa triggerAction(), repeatAction() -
641 */ -
642void QAbstractSlider::setRepeatAction(SliderAction action, int thresholdTime, int repeatTime) -
643{ -
644 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
645 if ((d->repeatAction = action) == SliderNoAction) {
evaluated: (d->repeatAction = action) == SliderNoAction
TRUEFALSE
yes
Evaluation Count:8
yes
Evaluation Count:5
5-8
646 d->repeatActionTimer.stop();
executed (the execution status of this line is deduced): d->repeatActionTimer.stop();
-
647 } else {
executed: }
Execution Count:8
8
648 d->repeatActionTime = repeatTime;
executed (the execution status of this line is deduced): d->repeatActionTime = repeatTime;
-
649 d->repeatActionTimer.start(thresholdTime, this);
executed (the execution status of this line is deduced): d->repeatActionTimer.start(thresholdTime, this);
-
650 }
executed: }
Execution Count:5
5
651} -
652 -
653/*! -
654 Returns the current repeat action. -
655 \sa setRepeatAction() -
656 */ -
657QAbstractSlider::SliderAction QAbstractSlider::repeatAction() const -
658{ -
659 Q_D(const QAbstractSlider);
never executed (the execution status of this line is deduced): const QAbstractSliderPrivate * const d = d_func();
-
660 return d->repeatAction;
never executed: return d->repeatAction;
0
661} -
662 -
663/*!\reimp -
664 */ -
665void QAbstractSlider::timerEvent(QTimerEvent *e) -
666{ -
667 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
668 if (e->timerId() == d->repeatActionTimer.timerId()) {
partially evaluated: e->timerId() == d->repeatActionTimer.timerId()
TRUEFALSE
yes
Evaluation Count:6
no
Evaluation Count:0
0-6
669 if (d->repeatActionTime) { // was threshold time, use repeat time next time
evaluated: d->repeatActionTime
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:5
1-5
670 d->repeatActionTimer.start(d->repeatActionTime, this);
executed (the execution status of this line is deduced): d->repeatActionTimer.start(d->repeatActionTime, this);
-
671 d->repeatActionTime = 0;
executed (the execution status of this line is deduced): d->repeatActionTime = 0;
-
672 }
executed: }
Execution Count:1
1
673 if (d->repeatAction == SliderPageStepAdd)
partially evaluated: d->repeatAction == SliderPageStepAdd
TRUEFALSE
yes
Evaluation Count:6
no
Evaluation Count:0
0-6
674 d->setAdjustedSliderPosition(d->overflowSafeAdd(d->pageStep));
executed: d->setAdjustedSliderPosition(d->overflowSafeAdd(d->pageStep));
Execution Count:6
6
675 else if (d->repeatAction == SliderPageStepSub)
never evaluated: d->repeatAction == SliderPageStepSub
0
676 d->setAdjustedSliderPosition(d->overflowSafeAdd(-d->pageStep));
never executed: d->setAdjustedSliderPosition(d->overflowSafeAdd(-d->pageStep));
0
677 else -
678 triggerAction(d->repeatAction);
never executed: triggerAction(d->repeatAction);
0
679 } -
680}
executed: }
Execution Count:6
6
681 -
682/*! -
683 Reimplement this virtual function to track slider changes such as -
684 \l SliderRangeChange, \l SliderOrientationChange, \l -
685 SliderStepsChange, or \l SliderValueChange. The default -
686 implementation only updates the display and ignores the \a change -
687 parameter. -
688 */ -
689void QAbstractSlider::sliderChange(SliderChange) -
690{ -
691 update();
executed (the execution status of this line is deduced): update();
-
692}
executed: }
Execution Count:30455
30455
693 -
694bool QAbstractSliderPrivate::scrollByDelta(Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta) -
695{ -
696 Q_Q(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSlider * const q = q_func();
-
697 int stepsToScroll = 0;
executed (the execution status of this line is deduced): int stepsToScroll = 0;
-
698 // in Qt scrolling to the right gives negative values. -
699 if (orientation == Qt::Horizontal)
evaluated: orientation == Qt::Horizontal
TRUEFALSE
yes
Evaluation Count:12
yes
Evaluation Count:13
12-13
700 delta = -delta;
executed: delta = -delta;
Execution Count:12
12
701 qreal offset = qreal(delta) / 120;
executed (the execution status of this line is deduced): qreal offset = qreal(delta) / 120;
-
702 -
703 if ((modifiers & Qt::ControlModifier) || (modifiers & Qt::ShiftModifier)) {
evaluated: (modifiers & Qt::ControlModifier)
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:24
evaluated: (modifiers & Qt::ShiftModifier)
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:23
1-24
704 // Scroll one page regardless of delta: -
705 stepsToScroll = qBound(-pageStep, int(offset * pageStep), pageStep);
executed (the execution status of this line is deduced): stepsToScroll = qBound(-pageStep, int(offset * pageStep), pageStep);
-
706 offset_accumulated = 0;
executed (the execution status of this line is deduced): offset_accumulated = 0;
-
707 } else {
executed: }
Execution Count:2
2
708 // Calculate how many lines to scroll. Depending on what delta is (and -
709 // offset), we might end up with a fraction (e.g. scroll 1.3 lines). We can -
710 // only scroll whole lines, so we keep the reminder until next event. -
711 qreal stepsToScrollF =
executed (the execution status of this line is deduced): qreal stepsToScrollF =
-
712#ifndef QT_NO_WHEELEVENT
executed (the execution status of this line is deduced):
-
713 QApplication::wheelScrollLines() *
executed (the execution status of this line is deduced): QApplication::wheelScrollLines() *
-
714#endif
executed (the execution status of this line is deduced):
-
715 offset * effectiveSingleStep();
executed (the execution status of this line is deduced): offset * effectiveSingleStep();
-
716 // Check if wheel changed direction since last event: -
717 if (offset_accumulated != 0 && (offset / offset_accumulated) < 0)
partially evaluated: offset_accumulated != 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:23
never evaluated: (offset / offset_accumulated) < 0
0-23
718 offset_accumulated = 0;
never executed: offset_accumulated = 0;
0
719 -
720 offset_accumulated += stepsToScrollF;
executed (the execution status of this line is deduced): offset_accumulated += stepsToScrollF;
-
721#ifndef Q_WS_MAC -
722 // Don't scroll more than one page in any case: -
723 stepsToScroll = qBound(-pageStep, int(offset_accumulated), pageStep);
executed (the execution status of this line is deduced): stepsToScroll = qBound(-pageStep, int(offset_accumulated), pageStep);
-
724#else -
725 // Native UI-elements on Mac can scroll hundreds of lines at a time as -
726 // a result of acceleration. So keep the same behaviour in Qt, and -
727 // don't restrict stepsToScroll to certain maximum (pageStep): -
728 stepsToScroll = int(offset_accumulated); -
729#endif -
730 offset_accumulated -= int(offset_accumulated);
executed (the execution status of this line is deduced): offset_accumulated -= int(offset_accumulated);
-
731 if (stepsToScroll == 0)
partially evaluated: stepsToScroll == 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:23
0-23
732 return false;
never executed: return false;
0
733 }
executed: }
Execution Count:23
23
734 -
735 if (invertedControls)
evaluated: invertedControls
TRUEFALSE
yes
Evaluation Count:11
yes
Evaluation Count:14
11-14
736 stepsToScroll = -stepsToScroll;
executed: stepsToScroll = -stepsToScroll;
Execution Count:11
11
737 -
738 int prevValue = value;
executed (the execution status of this line is deduced): int prevValue = value;
-
739 position = overflowSafeAdd(stepsToScroll); // value will be updated by triggerAction()
executed (the execution status of this line is deduced): position = overflowSafeAdd(stepsToScroll);
-
740 q->triggerAction(QAbstractSlider::SliderMove);
executed (the execution status of this line is deduced): q->triggerAction(QAbstractSlider::SliderMove);
-
741 -
742 if (prevValue == value) {
evaluated: prevValue == value
TRUEFALSE
yes
Evaluation Count:2
yes
Evaluation Count:23
2-23
743 offset_accumulated = 0;
executed (the execution status of this line is deduced): offset_accumulated = 0;
-
744 return false;
executed: return false;
Execution Count:2
2
745 } -
746 return true;
executed: return true;
Execution Count:23
23
747} -
748 -
749/*! -
750 \reimp -
751*/ -
752#ifndef QT_NO_WHEELEVENT -
753void QAbstractSlider::wheelEvent(QWheelEvent * e) -
754{ -
755 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
756 e->ignore();
executed (the execution status of this line is deduced): e->ignore();
-
757 int delta = e->delta();
executed (the execution status of this line is deduced): int delta = e->delta();
-
758 if (d->scrollByDelta(e->orientation(), e->modifiers(), delta))
partially evaluated: d->scrollByDelta(e->orientation(), e->modifiers(), delta)
TRUEFALSE
yes
Evaluation Count:16
no
Evaluation Count:0
0-16
759 e->accept();
executed: e->accept();
Execution Count:16
16
760}
executed: }
Execution Count:16
16
761 -
762#endif -
763 -
764/*! -
765 \reimp -
766*/ -
767void QAbstractSlider::keyPressEvent(QKeyEvent *ev) -
768{ -
769 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
770 SliderAction action = SliderNoAction;
executed (the execution status of this line is deduced): SliderAction action = SliderNoAction;
-
771#ifdef QT_KEYPAD_NAVIGATION -
772 if (ev->isAutoRepeat()) { -
773 if (!d->firstRepeat.isValid()) -
774 d->firstRepeat.start(); -
775 else if (1 == d->repeatMultiplier) { -
776 // This is the interval in milli seconds which one key repetition -
777 // takes. -
778 const int repeatMSecs = d->firstRepeat.elapsed(); -
779 -
780 /** -
781 * The time it takes to currently navigate the whole slider. -
782 */ -
783 const qreal currentTimeElapse = (qreal(maximum()) / singleStep()) * repeatMSecs; -
784 -
785 /** -
786 * This is an arbitrarily determined constant in msecs that -
787 * specifies how long time it should take to navigate from the -
788 * start to the end(excluding starting key auto repeat). -
789 */ -
790 const int SliderRepeatElapse = 2500; -
791 -
792 d->repeatMultiplier = currentTimeElapse / SliderRepeatElapse; -
793 } -
794 -
795 } -
796 else if (d->firstRepeat.isValid()) { -
797 d->firstRepeat.invalidate(); -
798 d->repeatMultiplier = 1; -
799 } -
800 -
801#endif -
802 -
803 switch (ev->key()) { -
804#ifdef QT_KEYPAD_NAVIGATION -
805 case Qt::Key_Select: -
806 if (QApplication::keypadNavigationEnabled()) -
807 setEditFocus(!hasEditFocus()); -
808 else -
809 ev->ignore(); -
810 break; -
811 case Qt::Key_Back: -
812 if (QApplication::keypadNavigationEnabled() && hasEditFocus()) { -
813 setValue(d->origValue); -
814 setEditFocus(false); -
815 } else -
816 ev->ignore(); -
817 break; -
818#endif -
819 -
820 // It seems we need to use invertedAppearance for Left and right, otherwise, things look weird. -
821 case Qt::Key_Left: -
822#ifdef QT_KEYPAD_NAVIGATION -
823 // In QApplication::KeypadNavigationDirectional, we want to change the slider -
824 // value if there is no left/right navigation possible and if this slider is not -
825 // inside a tab widget. -
826 if (QApplication::keypadNavigationEnabled() -
827 && (!hasEditFocus() && QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder -
828 || d->orientation == Qt::Vertical -
829 || !hasEditFocus() -
830 && (QWidgetPrivate::canKeypadNavigate(Qt::Horizontal) || QWidgetPrivate::inTabWidget(this)))) { -
831 ev->ignore(); -
832 return; -
833 } -
834 if (QApplication::keypadNavigationEnabled() && d->orientation == Qt::Vertical) -
835 action = d->invertedControls ? SliderSingleStepSub : SliderSingleStepAdd; -
836 else -
837#endif -
838 if (isRightToLeft())
partially evaluated: isRightToLeft()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:12
0-12
839 action = d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd;
never executed: action = d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd;
never evaluated: d->invertedAppearance
0
840 else -
841 action = !d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd;
executed: action = !d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd;
Execution Count:12
evaluated: !d->invertedAppearance
TRUEFALSE
yes
Evaluation Count:6
yes
Evaluation Count:6
6-12
842 break;
executed: break;
Execution Count:12
12
843 case Qt::Key_Right: -
844#ifdef QT_KEYPAD_NAVIGATION -
845 // Same logic as in Qt::Key_Left -
846 if (QApplication::keypadNavigationEnabled() -
847 && (!hasEditFocus() && QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder -
848 || d->orientation == Qt::Vertical -
849 || !hasEditFocus() -
850 && (QWidgetPrivate::canKeypadNavigate(Qt::Horizontal) || QWidgetPrivate::inTabWidget(this)))) { -
851 ev->ignore(); -
852 return; -
853 } -
854 if (QApplication::keypadNavigationEnabled() && d->orientation == Qt::Vertical) -
855 action = d->invertedControls ? SliderSingleStepAdd : SliderSingleStepSub; -
856 else -
857#endif -
858 if (isRightToLeft())
partially evaluated: isRightToLeft()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:12
0-12
859 action = d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub;
never executed: action = d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub;
never evaluated: d->invertedAppearance
0
860 else -
861 action = !d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub;
executed: action = !d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub;
Execution Count:12
evaluated: !d->invertedAppearance
TRUEFALSE
yes
Evaluation Count:6
yes
Evaluation Count:6
6-12
862 break;
executed: break;
Execution Count:12
12
863 case Qt::Key_Up: -
864#ifdef QT_KEYPAD_NAVIGATION -
865 // In QApplication::KeypadNavigationDirectional, we want to change the slider -
866 // value if there is no up/down navigation possible. -
867 if (QApplication::keypadNavigationEnabled() -
868 && (QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder -
869 || d->orientation == Qt::Horizontal -
870 || !hasEditFocus() && QWidgetPrivate::canKeypadNavigate(Qt::Vertical))) { -
871 ev->ignore(); -
872 break; -
873 } -
874#endif -
875 action = d->invertedControls ? SliderSingleStepSub : SliderSingleStepAdd;
evaluated: d->invertedControls
TRUEFALSE
yes
Evaluation Count:8
yes
Evaluation Count:12
8-12
876 break;
executed: break;
Execution Count:20
20
877 case Qt::Key_Down: -
878#ifdef QT_KEYPAD_NAVIGATION -
879 // Same logic as in Qt::Key_Up -
880 if (QApplication::keypadNavigationEnabled() -
881 && (QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder -
882 || d->orientation == Qt::Horizontal -
883 || !hasEditFocus() && QWidgetPrivate::canKeypadNavigate(Qt::Vertical))) { -
884 ev->ignore(); -
885 break; -
886 } -
887#endif -
888 action = d->invertedControls ? SliderSingleStepAdd : SliderSingleStepSub;
evaluated: d->invertedControls
TRUEFALSE
yes
Evaluation Count:8
yes
Evaluation Count:13
8-13
889 break;
executed: break;
Execution Count:21
21
890 case Qt::Key_PageUp: -
891 action = d->invertedControls ? SliderPageStepSub : SliderPageStepAdd;
evaluated: d->invertedControls
TRUEFALSE
yes
Evaluation Count:6
yes
Evaluation Count:6
6
892 break;
executed: break;
Execution Count:12
12
893 case Qt::Key_PageDown: -
894 action = d->invertedControls ? SliderPageStepAdd : SliderPageStepSub;
evaluated: d->invertedControls
TRUEFALSE
yes
Evaluation Count:6
yes
Evaluation Count:6
6
895 break;
executed: break;
Execution Count:12
12
896 case Qt::Key_Home: -
897 action = SliderToMinimum;
executed (the execution status of this line is deduced): action = SliderToMinimum;
-
898 break;
executed: break;
Execution Count:8
8
899 case Qt::Key_End: -
900 action = SliderToMaximum;
executed (the execution status of this line is deduced): action = SliderToMaximum;
-
901 break;
executed: break;
Execution Count:8
8
902 default: -
903 ev->ignore();
never executed (the execution status of this line is deduced): ev->ignore();
-
904 break;
never executed: break;
0
905 } -
906 if (action)
partially evaluated: action
TRUEFALSE
yes
Evaluation Count:105
no
Evaluation Count:0
0-105
907 triggerAction(action);
executed: triggerAction(action);
Execution Count:105
105
908}
executed: }
Execution Count:105
105
909 -
910/*! -
911 \reimp -
912*/ -
913void QAbstractSlider::changeEvent(QEvent *ev) -
914{ -
915 Q_D(QAbstractSlider);
executed (the execution status of this line is deduced): QAbstractSliderPrivate * const d = d_func();
-
916 switch (ev->type()) { -
917 case QEvent::EnabledChange: -
918 if (!isEnabled()) {
evaluated: !isEnabled()
TRUEFALSE
yes
Evaluation Count:23
yes
Evaluation Count:20
20-23
919 d->repeatActionTimer.stop();
executed (the execution status of this line is deduced): d->repeatActionTimer.stop();
-
920 setSliderDown(false);
executed (the execution status of this line is deduced): setSliderDown(false);
-
921 }
executed: }
Execution Count:23
23
922 // fall through... -
923 default:
code before this statement executed: default:
Execution Count:43
43
924 QWidget::changeEvent(ev);
executed (the execution status of this line is deduced): QWidget::changeEvent(ev);
-
925 }
executed: }
Execution Count:927
927
926}
executed: }
Execution Count:927
927
927 -
928/*! -
929 \reimp -
930*/ -
931bool QAbstractSlider::event(QEvent *e) -
932{ -
933#ifdef QT_KEYPAD_NAVIGATION -
934 Q_D(QAbstractSlider); -
935 switch (e->type()) { -
936 case QEvent::FocusIn: -
937 d->origValue = d->value; -
938 break; -
939 default: -
940 break; -
941 } -
942#endif -
943 -
944 return QWidget::event(e);
executed: return QWidget::event(e);
Execution Count:25885
25885
945} -
946 -
947QT_END_NAMESPACE -
948 -
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