qabstractslider.cpp

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/home/qt/qt5_coco/qt5/qtbase/src/widgets/widgets/qabstractslider.cpp

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Preprocessed file

Line Source Count

1 -

2 -

3 -

4 -

5 QAbstractSliderPrivate::QAbstractSliderPrivate() -

6 : minimum(0), maximum(99), pageStep(10), value(0), position(0), pressValue(-1), -

7 singleStep(1), singleStepFromItemView(-1), viewMayChangeSingleStep(true), offset_accumulated(0), tracking(true), -

8 blocktracking(false), pressed(false), -

9 invertedAppearance(false), invertedControls(false), -

10 orientation(Qt::Horizontal), repeatAction(QAbstractSlider::SliderNoAction) -

11 -

12 -

13 -

14 -

15 -

16 -

17 { -

18 -

19 -

}

never executed: end of block

21 -

22 QAbstractSliderPrivate::~QAbstractSliderPrivate() -

23 { -

24 } -

25 void QAbstractSlider::setRange(int min, int max) -

26 { -

27 QAbstractSliderPrivate * const d = d_func(); -

28 int oldMin = d->minimum; -

29 int oldMax = d->maximum; -

30 d->minimum = min; -

31 d->maximum = qMax(min, max); -

32 if (oldMin != d->minimum || oldMax != d->maximum) { -

33 sliderChange(SliderRangeChange); -

34 rangeChanged(d->minimum, d->maximum); -

35 setValue(d->value); -

36 } -

37 } -

38 -

39 -

40 void QAbstractSliderPrivate::setSteps(int single, int page) -

41 { -

42 QAbstractSlider * const q = q_func(); -

43 singleStep = qAbs(single); -

44 pageStep = qAbs(page); -

45 q->sliderChange(QAbstractSlider::SliderStepsChange); -

46 } -

47 QAbstractSlider::QAbstractSlider(QWidget *parent) -

48 :QWidget(*new QAbstractSliderPrivate, parent, 0) -

49 { -

50 } -

51 -

52 -

53 QAbstractSlider::QAbstractSlider(QAbstractSliderPrivate &dd, QWidget *parent) -

54 :QWidget(dd, parent, 0) -

55 { -

56 } -

57 -

58 -

59 -

60 -

61 QAbstractSlider::~QAbstractSlider() -

62 { -

63 } -

64 void QAbstractSlider::setOrientation(Qt::Orientation orientation) -

65 { -

66 QAbstractSliderPrivate * const d = d_func(); -

67 if (d->orientation == orientation) -

68 return; -

69 -

70 d->orientation = orientation; -

71 if (!testAttribute(Qt::WA_WState_OwnSizePolicy)) { -

72 QSizePolicy sp = sizePolicy(); -

73 sp.transpose(); -

74 setSizePolicy(sp); -

75 setAttribute(Qt::WA_WState_OwnSizePolicy, false); -

76 } -

77 update(); -

78 updateGeometry(); -

79 } -

80 -

81 Qt::Orientation QAbstractSlider::orientation() const -

82 { -

83 const QAbstractSliderPrivate * const d = d_func(); -

84 return d->orientation; -

85 } -

86 void QAbstractSlider::setMinimum(int min) -

87 { -

88 QAbstractSliderPrivate * const d = d_func(); -

89 setRange(min, qMax(d->maximum, min)); -

90 } -

91 -

92 int QAbstractSlider::minimum() const -

93 { -

94 const QAbstractSliderPrivate * const d = d_func(); -

95 return d->minimum; -

96 } -

97 void QAbstractSlider::setMaximum(int max) -

98 { -

99 QAbstractSliderPrivate * const d = d_func(); -

100 setRange(qMin(d->minimum, max), max); -

101 } -

102 -

103 int QAbstractSlider::maximum() const -

104 { -

105 const QAbstractSliderPrivate * const d = d_func(); -

106 return d->maximum; -

107 } -

108 void QAbstractSlider::setSingleStep(int step) -

109 { -

110 QAbstractSliderPrivate * const d = d_func(); -

111 -

112 d->viewMayChangeSingleStep = (step < 0); -

113

if (step < 0

step < 0	Description
TRUE	never evaluated
FALSE	never evaluated

&& d->singleStepFromItemView > 0

d->singleStepFromItemView > 0	Description
TRUE	never evaluated
FALSE	never evaluated

)

114

step = d->singleStepFromItemView;

never executed: step = d->singleStepFromItemView;

115 -

116

if (step != d->singleStep

step != d->singleStep	Description
TRUE	never evaluated
FALSE	never evaluated

)

117

d->setSteps(step, d->pageStep);

never executed: d->setSteps(step, d->pageStep);

118

}

never executed: end of block

119 -

120 int QAbstractSlider::singleStep() const -

121 { -

122 const QAbstractSliderPrivate * const d = d_func(); -

123 return d->singleStep; -

124 } -

125 void QAbstractSlider::setPageStep(int step) -

126 { -

127 QAbstractSliderPrivate * const d = d_func(); -

128 if (step != d->pageStep) -

129 d->setSteps(d->singleStep, step); -

130 } -

131 -

132 int QAbstractSlider::pageStep() const -

133 { -

134 const QAbstractSliderPrivate * const d = d_func(); -

135 return d->pageStep; -

136 } -

137 void QAbstractSlider::setTracking(bool enable) -

138 { -

139 QAbstractSliderPrivate * const d = d_func(); -

140 d->tracking = enable; -

141 } -

142 -

143 bool QAbstractSlider::hasTracking() const -

144 { -

145 const QAbstractSliderPrivate * const d = d_func(); -

146 return d->tracking; -

147 } -

148 void QAbstractSlider::setSliderDown(bool down) -

149 { -

150 QAbstractSliderPrivate * const d = d_func(); -

151 bool doEmit = d->pressed != down; -

152 -

153 d->pressed = down; -

154 -

155 if (doEmit) { -

156 if (down) -

157 sliderPressed(); -

158 else -

159 sliderReleased(); -

160 } -

161 -

162 if (!down && d->position != d->value) -

163 triggerAction(SliderMove); -

164 } -

165 -

166 bool QAbstractSlider::isSliderDown() const -

167 { -

168 const QAbstractSliderPrivate * const d = d_func(); -

169 return d->pressed; -

170 } -

171 void QAbstractSlider::setSliderPosition(int position) -

172 { -

173 QAbstractSliderPrivate * const d = d_func(); -

174 position = d->bound(position); -

175 if (position == d->position) -

176 return; -

177 d->position = position; -

178 if (!d->tracking) -

179 update(); -

180 if (d->pressed) -

181 sliderMoved(position); -

182 if (d->tracking && !d->blocktracking) -

183 triggerAction(SliderMove); -

184 } -

185 -

186 int QAbstractSlider::sliderPosition() const -

187 { -

188 const QAbstractSliderPrivate * const d = d_func(); -

189 return d->position; -

190 } -

191 int QAbstractSlider::value() const -

192 { -

193 const QAbstractSliderPrivate * const d = d_func(); -

194 return d->value; -

195 } -

196 -

197 void QAbstractSlider::setValue(int value) -

198 { -

199 QAbstractSliderPrivate * const d = d_func(); -

200 value = d->bound(value); -

201 if (d->value == value && d->position == value) -

202 return; -

203 d->value = value; -

204 if (d->position != value) { -

205 d->position = value; -

206 if (d->pressed) -

207 sliderMoved((d->position = value)); -

208 } -

209 -

210 QAccessibleValueChangeEvent event(this, d->value); -

211 QAccessible::updateAccessibility(&event); -

212 -

213 sliderChange(SliderValueChange); -

214 valueChanged(value); -

215 } -

216 bool QAbstractSlider::invertedAppearance() const -

217 { -

218 const QAbstractSliderPrivate * const d = d_func(); -

219 return d->invertedAppearance; -

220 } -

221 -

222 void QAbstractSlider::setInvertedAppearance(bool invert) -

223 { -

224 QAbstractSliderPrivate * const d = d_func(); -

225 d->invertedAppearance = invert; -

226 update(); -

227 } -

228 bool QAbstractSlider::invertedControls() const -

229 { -

230 const QAbstractSliderPrivate * const d = d_func(); -

231 return d->invertedControls; -

232 } -

233 -

234 void QAbstractSlider::setInvertedControls(bool invert) -

235 { -

236 QAbstractSliderPrivate * const d = d_func(); -

237 d->invertedControls = invert; -

238 } -

239 void QAbstractSlider::triggerAction(SliderAction action) -

240 { -

241 QAbstractSliderPrivate * const d = d_func(); -

242 d->blocktracking = true; -

243 switch (action) { -

244 case SliderSingleStepAdd: -

245 setSliderPosition(d->overflowSafeAdd(d->effectiveSingleStep())); -

246 break; -

247 case SliderSingleStepSub: -

248 setSliderPosition(d->overflowSafeAdd(-d->effectiveSingleStep())); -

249 break; -

250 case SliderPageStepAdd: -

251 setSliderPosition(d->overflowSafeAdd(d->pageStep)); -

252 break; -

253 case SliderPageStepSub: -

254 setSliderPosition(d->overflowSafeAdd(-d->pageStep)); -

255 break; -

256 case SliderToMinimum: -

257 setSliderPosition(d->minimum); -

258 break; -

259 case SliderToMaximum: -

260 setSliderPosition(d->maximum); -

261 break; -

262 case SliderMove: -

263 case SliderNoAction: -

264 break; -

265 }; -

266 actionTriggered(action); -

267 d->blocktracking = false; -

268 setValue(d->position); -

269 } -

270 -

271 -

272 -

273 -

274 -

275 -

276 void QAbstractSlider::setRepeatAction(SliderAction action, int thresholdTime, int repeatTime) -

277 { -

278 QAbstractSliderPrivate * const d = d_func(); -

279 if ((d->repeatAction = action) == SliderNoAction) { -

280 d->repeatActionTimer.stop(); -

281 } else { -

282 d->repeatActionTime = repeatTime; -

283 d->repeatActionTimer.start(thresholdTime, this); -

284 } -

285 } -

286 -

287 -

288 -

289 -

290 -

291 QAbstractSlider::SliderAction QAbstractSlider::repeatAction() const -

292 { -

293 const QAbstractSliderPrivate * const d = d_func(); -

294 return d->repeatAction; -

295 } -

296 -

297 -

298 -

299 void QAbstractSlider::timerEvent(QTimerEvent *e) -

300 { -

301 QAbstractSliderPrivate * const d = d_func(); -

302 if (e->timerId() == d->repeatActionTimer.timerId()) { -

303 if (d->repeatActionTime) { -

304 d->repeatActionTimer.start(d->repeatActionTime, this); -

305 d->repeatActionTime = 0; -

306 } -

307 if (d->repeatAction == SliderPageStepAdd) -

308 d->setAdjustedSliderPosition(d->overflowSafeAdd(d->pageStep)); -

309 else if (d->repeatAction == SliderPageStepSub) -

310 d->setAdjustedSliderPosition(d->overflowSafeAdd(-d->pageStep)); -

311 else -

312 triggerAction(d->repeatAction); -

313 } -

314 } -

315 void QAbstractSlider::sliderChange(SliderChange) -

316 { -

317 update(); -

318 } -

319 -

320 bool QAbstractSliderPrivate::scrollByDelta(Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta) -

321 { -

322 QAbstractSlider * const q = q_func(); -

323 int stepsToScroll = 0; -

324 -

325 if (orientation == Qt::Horizontal) -

326 delta = -delta; -

327 qreal offset = qreal(delta) / 120; -

328 -

329 if ((modifiers & Qt::ControlModifier) || (modifiers & Qt::ShiftModifier)) { -

330 -

331 stepsToScroll = qBound(-pageStep, int(offset * pageStep), pageStep); -

332 offset_accumulated = 0; -

333 } else { -

334 -

335 -

336 -

337 qreal stepsToScrollF = -

338 -

339 QApplication::wheelScrollLines() * -

340 -

341 offset * effectiveSingleStep(); -

342 -

343 if (offset_accumulated != 0 && (offset / offset_accumulated) < 0) -

344 offset_accumulated = 0; -

345 -

346 offset_accumulated += stepsToScrollF; -

347 -

348 -

349 stepsToScroll = qBound(-pageStep, int(offset_accumulated), pageStep); -

350 -

351 -

352 -

353 -

354 -

355 -

356 offset_accumulated -= int(offset_accumulated); -

357 if (stepsToScroll == 0) { -

358 -

359 -

360 const float effective_offset = invertedControls ? -offset_accumulated : offset_accumulated; -

361 if (effective_offset > 0.f && value < maximum) -

362 return true; -

363 if (effective_offset < 0.f && value > minimum) -

364 return true; -

365 offset_accumulated = 0; -

366 return false; -

367 } -

368 } -

369 -

370 if (invertedControls) -

371 stepsToScroll = -stepsToScroll; -

372 -

373 int prevValue = value; -

374 position = bound(overflowSafeAdd(stepsToScroll)); -

375 q->triggerAction(QAbstractSlider::SliderMove); -

376 -

377 if (prevValue == value) { -

378 offset_accumulated = 0; -

379 return false; -

380 } -

381 return true; -

382 } -

383 -

384 -

385 -

386 -

387 -

388 void QAbstractSlider::wheelEvent(QWheelEvent * e) -

389 { -

390 QAbstractSliderPrivate * const d = d_func(); -

391 e->ignore(); -

392 int delta = e->delta(); -

393

if (e->inverted()

e->inverted()	Description
TRUE	never evaluated
FALSE	never evaluated

)

394

delta = -delta;

never executed: delta = -delta;

395

if (d->scrollByDelta(e->orientation(), e->modifiers(), delta)

d->scrollByDel...iers(), delta)	Description
TRUE	never evaluated
FALSE	never evaluated

)

396

e->accept();

never executed: e->accept();

397

}

never executed: end of block

398 -

399 -

400 -

401 -

402 -

403 -

404 void QAbstractSlider::keyPressEvent(QKeyEvent *ev) -

405 { -

406 QAbstractSliderPrivate * const d = d_func(); -

407 SliderAction action = SliderNoAction; -

408 switch (ev->key()) { -

409 case Qt::Key_Left: -

410 if (isRightToLeft()) -

411 action = d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd; -

412 else -

413 action = !d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd; -

414 break; -

415 case Qt::Key_Right: -

416 if (isRightToLeft()) -

417 action = d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub; -

418 else -

419 action = !d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub; -

420 break; -

421 case Qt::Key_Up: -

422 action = d->invertedControls ? SliderSingleStepSub : SliderSingleStepAdd; -

423 break; -

424 case Qt::Key_Down: -

425 action = d->invertedControls ? SliderSingleStepAdd : SliderSingleStepSub; -

426 break; -

427 case Qt::Key_PageUp: -

428 action = d->invertedControls ? SliderPageStepSub : SliderPageStepAdd; -

429 break; -

430 case Qt::Key_PageDown: -

431 action = d->invertedControls ? SliderPageStepAdd : SliderPageStepSub; -

432 break; -

433 case Qt::Key_Home: -

434 action = SliderToMinimum; -

435 break; -

436 case Qt::Key_End: -

437 action = SliderToMaximum; -

438 break; -

439 default: -

440 ev->ignore(); -

441 break; -

442 } -

443 if (action) -

444 triggerAction(action); -

445 } -

446 -

447 -

448 -

449 -

450 void QAbstractSlider::changeEvent(QEvent *ev) -

451 { -

452 QAbstractSliderPrivate * const d = d_func(); -

453 switch (ev->type()) { -

454 case QEvent::EnabledChange: -

455 if (!isEnabled()) { -

456 d->repeatActionTimer.stop(); -

457 setSliderDown(false); -

458 } -

459 -

460 default: -

461 QWidget::changeEvent(ev); -

462 } -

463 } -

464 -

465 -

466 -

467 -

468 bool QAbstractSlider::event(QEvent *e) -

469 { -

470 return QWidget::event(e); -

471 } -

472 -

473 -

474 -

475 -

476 -

477 -

478 void QAbstractSliderPrivate::itemviewChangeSingleStep(int step) -

479 { -

480 singleStepFromItemView = step; -

481

if (viewMayChangeSingleStep

viewMayChangeSingleStep	Description
TRUE	never evaluated
FALSE	never evaluated

&& singleStep != step

singleStep != step	Description
TRUE	never evaluated
FALSE	never evaluated

)

482

setSteps(step, pageStep

never executed: setSteps(step, pageStep);

);

never executed: setSteps(step, pageStep);

483

}

never executed: end of block

484 -

485 -

486 -

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