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qstatusbar.cpp

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1 /**************************************************************************** -

2 ** -

4 ** Contact: https://www.qt.io/licensing/ -

5 ** -

6 ** This file is part of the QtWidgets module of the Qt Toolkit. -

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL$ -

9 ** Commercial License Usage -

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11 ** accordance with the commercial license agreement provided with the -

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21 ** packaging of this file. Please review the following information to -

22 ** ensure the GNU Lesser General Public License version 3 requirements -

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24 ** -

25 ** GNU General Public License Usage -

26 ** Alternatively, this file may be used under the terms of the GNU -

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28 ** Public license version 3 or any later version approved by the KDE Free -

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35 ** -

36 ** $QT_END_LICENSE$ -

37 ** -

38 ****************************************************************************/ -

39 -

40 #include "qstatusbar.h" -

41 #ifndef QT_NO_STATUSBAR -

42 -

43 #include "qlist.h" -

44 #include "qdebug.h" -

45 #include "qevent.h" -

46 #include "qlayout.h" -

47 #include "qpainter.h" -

48 #include "qtimer.h" -

49 #include "qstyle.h" -

50 #include "qstyleoption.h" -

51 #include "qsizegrip.h" -

52 #include "qmainwindow.h" -

53 -

54 #ifndef QT_NO_ACCESSIBILITY -

55 #include "qaccessible.h" -

56 #endif -

57 -

58 #include <private/qlayoutengine_p.h> -

59 #include <private/qwidget_p.h> -

60 -

61 QT_BEGIN_NAMESPACE -

62 -

63 class QStatusBarPrivate : public QWidgetPrivate -

64 { -

65 Q_DECLARE_PUBLIC(QStatusBar) -

66 public: -

67 QStatusBarPrivate() {} -

68 -

69 struct SBItem { -

70 SBItem(QWidget* widget, int stretch, bool permanent) -

: s(stretch), w(widget), p(permanent) {}

never executed: end of block

72 int s; -

73 QWidget * w; -

74 bool p; -

75 }; -

76 -

77 QList<SBItem *> items; -

78 QString tempItem; -

79 -

80 QBoxLayout * box; -

81 QTimer * timer; -

82 -

83 #ifndef QT_NO_SIZEGRIP -

84 QSizeGrip * resizer; -

85 bool showSizeGrip; -

86 #endif -

87 -

88 int savedStrut; -

89 -

90 #ifdef Q_DEAD_CODE_FROM_QT4_MAC -

91 QPoint dragStart; -

92 #endif -

93 -

94 int indexToLastNonPermanentWidget() const -

95 { -

96 int i = items.size() - 1; -

for (; i >= 0; --i) {

i >= 0	Description
TRUE	never evaluated
FALSE	never evaluated

98 SBItem *item = items.at(i); -

if (!(item && item->p))

item	Description
TRUE	never evaluated
FALSE	never evaluated

item->p	Description
TRUE	never evaluated
FALSE	never evaluated

100

break;

never executed: break;

101

}

never executed: end of block

102

return i;

never executed: return i;

103 } -

104 -

105 #ifndef QT_NO_SIZEGRIP -

106 void tryToShowSizeGrip() -

107 { -

108

if (!showSizeGrip)

!showSizeGrip	Description
TRUE	never evaluated
FALSE	never evaluated

109

return;

never executed: return;

110 showSizeGrip = false; -

111

if (!resizer || resizer->isVisible())

!resizer	Description
TRUE	never evaluated
FALSE	never evaluated

resizer->isVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

112

return;

never executed: return;

113 resizer->setAttribute(Qt::WA_WState_ExplicitShowHide, false); -

114 QMetaObject::invokeMethod(resizer, "_q_showIfNotHidden", Qt::DirectConnection); -

115 resizer->setAttribute(Qt::WA_WState_ExplicitShowHide, false); -

116

}

never executed: end of block

117 #endif -

118 -

119 QRect messageRect() const; -

120 }; -

121 -

122 -

123 QRect QStatusBarPrivate::messageRect() const -

124 { -

125 Q_Q(const QStatusBar); -

126 bool rtl = q->layoutDirection() == Qt::RightToLeft; -

127 -

128 int left = 6; -

129 int right = q->width() - 12; -

130 -

131 #ifndef QT_NO_SIZEGRIP -

132

if (resizer && resizer->isVisible()) {

resizer	Description
TRUE	never evaluated
FALSE	never evaluated

resizer->isVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

133

if (rtl)

rtl	Description
TRUE	never evaluated
FALSE	never evaluated

134

left = resizer->x() + resizer->width();

never executed: left = resizer->x() + resizer->width();

135 else -

136

right = resizer->x();

never executed: right = resizer->x();

137 } -

138 #endif -

139 -

140

for (int i=0; i<items.size(); ++i) {

i<items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

141 QStatusBarPrivate::SBItem* item = items.at(i); -

142

if (!item)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

143

break;

never executed: break;

144

if (item->p && item->w->isVisible()) {

item->p	Description
TRUE	never evaluated
FALSE	never evaluated

item->w->isVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

145

if (item->p) {

item->p	Description
TRUE	never evaluated
FALSE	never evaluated

146

if (rtl)

rtl	Description
TRUE	never evaluated
FALSE	never evaluated

147

left = qMax(left, item->w->x() + item->w->width() + 2);

never executed: left = qMax(left, item->w->x() + item->w->width() + 2);

148 else -

149

right = qMin(right, item->w->x() - 2);

never executed: right = qMin(right, item->w->x() - 2);

150 } -

151

break;

never executed: break;

152 } -

153

}

never executed: end of block

154

return QRect(left, 0, right-left, q->height());

never executed: return QRect(left, 0, right-left, q->height());

155 } -

156 -

157 -

158 /*! -

159 \class QStatusBar -

160 \brief The QStatusBar class provides a horizontal bar suitable for -

161 presenting status information. -

162 -

163 \ingroup mainwindow-classes -

164 \ingroup helpsystem -

165 \inmodule QtWidgets -

166 -

167 Each status indicator falls into one of three categories: -

168 -

169 \list -

170 \li \e Temporary - briefly occupies most of the status bar. Used -

171 to explain tool tip texts or menu entries, for example. -

172 \li \e Normal - occupies part of the status bar and may be hidden -

173 by temporary messages. Used to display the page and line -

174 number in a word processor, for example. -

175 \li \e Permanent - is never hidden. Used for important mode -

176 indications, for example, some applications put a Caps Lock -

177 indicator in the status bar. -

178 \endlist -

179 -

180 QStatusBar lets you display all three types of indicators. -

181 -

182 Typically, a request for the status bar functionality occurs in -

183 relation to a QMainWindow object. QMainWindow provides a main -

184 application window, with a menu bar, tool bars, dock widgets \e -

185 and a status bar around a large central widget. The status bar can -

186 be retrieved using the QMainWindow::statusBar() function, and -

187 replaced using the QMainWindow::setStatusBar() function. -

188 -

189 Use the showMessage() slot to display a \e temporary message: -

190 -

191 \snippet mainwindows/dockwidgets/mainwindow.cpp 8 -

192 -

193 To remove a temporary message, use the clearMessage() slot, or set -

194 a time limit when calling showMessage(). For example: -

195 -

196 \snippet mainwindows/dockwidgets/mainwindow.cpp 3 -

197 -

198 Use the currentMessage() function to retrieve the temporary -

199 message currently shown. The QStatusBar class also provide the -

200 messageChanged() signal which is emitted whenever the temporary -

201 status message changes. -

202 -

203 \target permanent message -

204 \e Normal and \e Permanent messages are displayed by creating a -

205 small widget (QLabel, QProgressBar or even QToolButton) and then -

206 adding it to the status bar using the addWidget() or the -

207 addPermanentWidget() function. Use the removeWidget() function to -

208 remove such messages from the status bar. -

209 -

210 \snippet code/src_gui_widgets_qstatusbar.cpp 0 -

211 -

212 By default QStatusBar provides a QSizeGrip in the lower-right -

213 corner. You can disable it using the setSizeGripEnabled() -

214 function. Use the isSizeGripEnabled() function to determine the -

215 current status of the size grip. -

216 -

217 \image fusion-statusbar-sizegrip.png A status bar shown in the Fusion widget style -

218 -

219 \sa QMainWindow, QStatusTipEvent, {fowler}{GUI Design Handbook: -

220 Status Bar}, {Application Example} -

221 */ -

222 -

223 -

224 /*! -

225 Constructs a status bar with a size grip and the given \a parent. -

226 -

227 \sa setSizeGripEnabled() -

228 */ -

229 QStatusBar::QStatusBar(QWidget * parent) -

230 : QWidget(*new QStatusBarPrivate, parent, 0) -

231 { -

232 Q_D(QStatusBar); -

233 d->box = 0; -

234 d->timer = 0; -

235 -

236 #ifndef QT_NO_SIZEGRIP -

237 d->resizer = 0; -

238 setSizeGripEnabled(true); // causes reformat() -

239 #else -

240 reformat(); -

241 #endif -

242

}

never executed: end of block

243 -

244 /*! -

245 Destroys this status bar and frees any allocated resources and -

246 child widgets. -

247 */ -

248 QStatusBar::~QStatusBar() -

249 { -

250 Q_D(QStatusBar); -

251

while (!d->items.isEmpty())

!d->items.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

252

delete d->items.takeFirst();

never executed: delete d->items.takeFirst();

253

}

never executed: end of block

254 -

255 -

256 /*! -

257 Adds the given \a widget to this status bar, reparenting the -

258 widget if it isn't already a child of this QStatusBar object. The -

259 \a stretch parameter is used to compute a suitable size for the -

260 given \a widget as the status bar grows and shrinks. The default -

261 stretch factor is 0, i.e giving the widget a minimum of space. -

262 -

263 The widget is located to the far left of the first permanent -

264 widget (see addPermanentWidget()) and may be obscured by temporary -

265 messages. -

266 -

267 \sa insertWidget(), removeWidget(), addPermanentWidget() -

268 */ -

269 -

270 void QStatusBar::addWidget(QWidget * widget, int stretch) -

271 { -

272

if (!widget)

!widget	Description
TRUE	never evaluated
FALSE	never evaluated

273

return;

never executed: return;

274 insertWidget(d_func()->indexToLastNonPermanentWidget() + 1, widget, stretch); -

275

}

never executed: end of block

276 -

277 /*! -

278 \since 4.2 -

279 -

280 Inserts the given \a widget at the given \a index to this status bar, -

281 reparenting the widget if it isn't already a child of this -

282 QStatusBar object. If \a index is out of range, the widget is appended -

283 (in which case it is the actual index of the widget that is returned). -

284 -

285 The \a stretch parameter is used to compute a suitable size for -

286 the given \a widget as the status bar grows and shrinks. The -

287 default stretch factor is 0, i.e giving the widget a minimum of -

288 space. -

289 -

290 The widget is located to the far left of the first permanent -

291 widget (see addPermanentWidget()) and may be obscured by temporary -

292 messages. -

293 -

294 \sa addWidget(), removeWidget(), addPermanentWidget() -

295 */ -

296 int QStatusBar::insertWidget(int index, QWidget *widget, int stretch) -

297 { -

298

if (!widget)

!widget	Description
TRUE	never evaluated
FALSE	never evaluated

299

return -1;

never executed: return -1;

300 -

301 Q_D(QStatusBar); -

302 QStatusBarPrivate::SBItem* item = new QStatusBarPrivate::SBItem(widget, stretch, false); -

303 -

304 int idx = d->indexToLastNonPermanentWidget(); -

305

if (Q_UNLIKELY(index < 0 || index > d->items.size() || (idx >= 0 && index > idx + 1))) {

__builtin_expe... + 1)), false)	Description
TRUE	never evaluated
FALSE	never evaluated

306 qWarning("QStatusBar::insertWidget: Index out of range (%d), appending widget", index); -

307 index = idx + 1; -

308

}

never executed: end of block

309 d->items.insert(index, item); -

310 -

311

if (!d->tempItem.isEmpty())

!d->tempItem.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

312

widget->hide();

never executed: widget->hide();

313 -

314 reformat(); -

315

if (!widget->isHidden() || !widget->testAttribute(Qt::WA_WState_ExplicitShowHide))

!widget->isHidden()	Description
TRUE	never evaluated
FALSE	never evaluated

!widget->testA...licitShowHide)	Description
TRUE	never evaluated
FALSE	never evaluated

316

widget->show();

never executed: widget->show();

317 -

318

return index;

never executed: return index;

319 } -

320 -

321 /*! -

322 Adds the given \a widget permanently to this status bar, -

323 reparenting the widget if it isn't already a child of this -

324 QStatusBar object. The \a stretch parameter is used to compute a -

325 suitable size for the given \a widget as the status bar grows and -

326 shrinks. The default stretch factor is 0, i.e giving the widget a -

327 minimum of space. -

328 -

329 Permanently means that the widget may not be obscured by temporary -

330 messages. It is is located at the far right of the status bar. -

331 -

332 \sa insertPermanentWidget(), removeWidget(), addWidget() -

333 */ -

334 -

335 void QStatusBar::addPermanentWidget(QWidget * widget, int stretch) -

336 { -

337

if (!widget)

!widget	Description
TRUE	never evaluated
FALSE	never evaluated

338

return;

never executed: return;

339 insertPermanentWidget(d_func()->items.size(), widget, stretch); -

340

}

never executed: end of block

341 -

342 -

343 /*! -

344 \since 4.2 -

345 -

346 Inserts the given \a widget at the given \a index permanently to this status bar, -

347 reparenting the widget if it isn't already a child of this -

348 QStatusBar object. If \a index is out of range, the widget is appended -

349 (in which case it is the actual index of the widget that is returned). -

350 -

351 The \a stretch parameter is used to compute a -

352 suitable size for the given \a widget as the status bar grows and -

353 shrinks. The default stretch factor is 0, i.e giving the widget a -

354 minimum of space. -

355 -

356 Permanently means that the widget may not be obscured by temporary -

357 messages. It is is located at the far right of the status bar. -

358 -

359 \sa addPermanentWidget(), removeWidget(), addWidget() -

360 */ -

361 int QStatusBar::insertPermanentWidget(int index, QWidget *widget, int stretch) -

362 { -

363

if (!widget)

!widget	Description
TRUE	never evaluated
FALSE	never evaluated

364

return -1;

never executed: return -1;

365 -

366 Q_D(QStatusBar); -

367 QStatusBarPrivate::SBItem* item = new QStatusBarPrivate::SBItem(widget, stretch, true); -

368 -

369 int idx = d->indexToLastNonPermanentWidget(); -

370

if (Q_UNLIKELY(index < 0 || index > d->items.size() || (idx >= 0 && index <= idx))) {

__builtin_expe... idx)), false)	Description
TRUE	never evaluated
FALSE	never evaluated

371 qWarning("QStatusBar::insertPermanentWidget: Index out of range (%d), appending widget", index); -

372 index = d->items.size(); -

373

}

never executed: end of block

374 d->items.insert(index, item); -

375 -

376 reformat(); -

377

if (!widget->isHidden() || !widget->testAttribute(Qt::WA_WState_ExplicitShowHide))

!widget->isHidden()	Description
TRUE	never evaluated
FALSE	never evaluated

!widget->testA...licitShowHide)	Description
TRUE	never evaluated
FALSE	never evaluated

378

widget->show();

never executed: widget->show();

379 -

380

return index;

never executed: return index;

381 } -

382 -

383 /*! -

384 Removes the specified \a widget from the status bar. -

385 -

386 \note This function does not delete the widget but \e hides it. -

387 To add the widget again, you must call both the addWidget() and -

388 show() functions. -

389 -

390 \sa addWidget(), addPermanentWidget(), clearMessage() -

391 */ -

392 -

393 void QStatusBar::removeWidget(QWidget *widget) -

394 { -

395

if (!widget)

!widget	Description
TRUE	never evaluated
FALSE	never evaluated

396

return;

never executed: return;

397 -

398 Q_D(QStatusBar); -

399 bool found = false; -

400 QStatusBarPrivate::SBItem* item; -

401

for (int i=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

402 item = d->items.at(i); -

403

if (!item)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

404

break;

never executed: break;

405

if (item->w == widget) {

item->w == widget	Description
TRUE	never evaluated
FALSE	never evaluated

406 d->items.removeAt(i); -

407 item->w->hide(); -

408 delete item; -

409 found = true; -

410

break;

never executed: break;

411 } -

412

}

never executed: end of block

413 -

414

if (found)

found	Description
TRUE	never evaluated
FALSE	never evaluated

415

reformat();

never executed: reformat();

416 #if defined(QT_DEBUG) -

417 else -

418

qDebug("QStatusBar::removeWidget(): Widget not found.");

never executed: QMessageLogger(__FILE__, 418, __PRETTY_FUNCTION__).debug("QStatusBar::removeWidget(): Widget not found.");

419 #endif -

420 } -

421 -

422 /*! -

423 \property QStatusBar::sizeGripEnabled -

424 -

425 \brief whether the QSizeGrip in the bottom-right corner of the -

426 status bar is enabled -

427 -

428 The size grip is enabled by default. -

429 */ -

430 -

431 bool QStatusBar::isSizeGripEnabled() const -

432 { -

433 #ifdef QT_NO_SIZEGRIP -

434 return false; -

435 #else -

436 Q_D(const QStatusBar); -

437

return !!d->resizer;

never executed: return !!d->resizer;

438 #endif -

439 } -

440 -

441 void QStatusBar::setSizeGripEnabled(bool enabled) -

442 { -

443 #ifdef QT_NO_SIZEGRIP -

444 Q_UNUSED(enabled); -

445 #else -

446 Q_D(QStatusBar); -

447

if (!enabled != !d->resizer) {

!enabled != !d->resizer	Description
TRUE	never evaluated
FALSE	never evaluated

448

if (enabled) {

enabled	Description
TRUE	never evaluated
FALSE	never evaluated

449 d->resizer = new QSizeGrip(this); -

450 d->resizer->hide(); -

451 d->resizer->installEventFilter(this); -

452 d->showSizeGrip = true; -

453

} else {

never executed: end of block

454 delete d->resizer; -

455 d->resizer = 0; -

456 d->showSizeGrip = false; -

457

}

never executed: end of block

458 reformat(); -

459

if (d->resizer && isVisible())

d->resizer	Description
TRUE	never evaluated
FALSE	never evaluated

isVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

460

d->tryToShowSizeGrip();

never executed: d->tryToShowSizeGrip();

461

}

never executed: end of block

462 #endif -

463

}

never executed: end of block

464 -

465 -

466 /*! -

467 Changes the status bar's appearance to account for item changes. -

468 -

469 Special subclasses may need this function, but geometry management -

470 will usually take care of any necessary rearrangements. -

471 */ -

472 void QStatusBar::reformat() -

473 { -

474 Q_D(QStatusBar); -

475

if (d->box)

d->box	Description
TRUE	never evaluated
FALSE	never evaluated

476

delete d->box;

never executed: delete d->box;

477 -

478 QBoxLayout *vbox; -

479 #ifndef QT_NO_SIZEGRIP -

480

if (d->resizer) {

d->resizer	Description
TRUE	never evaluated
FALSE	never evaluated

481 d->box = new QHBoxLayout(this); -

482 d->box->setMargin(0); -

483 vbox = new QVBoxLayout; -

484 d->box->addLayout(vbox); -

485

} else

never executed: end of block

486 #endif -

487 { -

488 vbox = d->box = new QVBoxLayout(this); -

489 d->box->setMargin(0); -

490

}

never executed: end of block

491 vbox->addSpacing(3); -

492 QBoxLayout* l = new QHBoxLayout; -

493 vbox->addLayout(l); -

494 l->addSpacing(2); -

495 l->setSpacing(6); -

496 -

497 int maxH = fontMetrics().height(); -

498 -

499 int i; -

500 QStatusBarPrivate::SBItem* item; -

501

for (i=0,item=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

502 item = d->items.at(i); -

503

if (!item || item->p)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

item->p	Description
TRUE	never evaluated
FALSE	never evaluated

504

break;

never executed: break;

505 l->addWidget(item->w, item->s); -

506 int itemH = qMin(qSmartMinSize(item->w).height(), item->w->maximumHeight()); -

507 maxH = qMax(maxH, itemH); -

508

}

never executed: end of block

509 -

510 l->addStretch(0); -

511 -

512

for (item=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

513 item = d->items.at(i); -

514

if (!item)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

515

break;

never executed: break;

516 l->addWidget(item->w, item->s); -

517 int itemH = qMin(qSmartMinSize(item->w).height(), item->w->maximumHeight()); -

518 maxH = qMax(maxH, itemH); -

519

}

never executed: end of block

520 #ifndef QT_NO_SIZEGRIP -

521

if (d->resizer) {

d->resizer	Description
TRUE	never evaluated
FALSE	never evaluated

522 maxH = qMax(maxH, d->resizer->sizeHint().height()); -

523 d->box->addSpacing(1); -

524 d->box->addWidget(d->resizer, 0, Qt::AlignBottom); -

525

}

never executed: end of block

526 #endif -

527 l->addStrut(maxH); -

528 d->savedStrut = maxH; -

529 vbox->addSpacing(2); -

530 d->box->activate(); -

531 update(); -

532

}

never executed: end of block

533 -

534 /*! -

535 -

536 Hides the normal status indications and displays the given \a -

537 message for the specified number of milli-seconds (\a{timeout}). If -

538 \a{timeout} is 0 (default), the \a {message} remains displayed until -

539 the clearMessage() slot is called or until the showMessage() slot is -

540 called again to change the message. -

541 -

542 Note that showMessage() is called to show temporary explanations of -

543 tool tip texts, so passing a \a{timeout} of 0 is not sufficient to -

544 display a \l{permanent message}{permanent message}. -

545 -

546 \sa messageChanged(), currentMessage(), clearMessage() -

547 */ -

548 void QStatusBar::showMessage(const QString &message, int timeout) -

549 { -

550 Q_D(QStatusBar); -

551 -

552

if (timeout > 0) {

timeout > 0	Description
TRUE	never evaluated
FALSE	never evaluated

553

if (!d->timer) {

!d->timer	Description
TRUE	never evaluated
FALSE	never evaluated

554 d->timer = new QTimer(this); -

555 connect(d->timer, SIGNAL(timeout()), this, SLOT(clearMessage())); -

556

}

never executed: end of block

557 d->timer->start(timeout); -

558

} else if (d->timer) {

never executed: end of block

d->timer	Description
TRUE	never evaluated
FALSE	never evaluated

559 delete d->timer; -

560 d->timer = 0; -

561

}

never executed: end of block

562

if (d->tempItem == message)

d->tempItem == message	Description
TRUE	never evaluated
FALSE	never evaluated

563

return;

never executed: return;

564 d->tempItem = message; -

565 -

566 hideOrShow(); -

567

}

never executed: end of block

568 -

569 /*! -

570 Removes any temporary message being shown. -

571 -

572 \sa currentMessage(), showMessage(), removeWidget() -

573 */ -

574 -

575 void QStatusBar::clearMessage() -

576 { -

577 Q_D(QStatusBar); -

578

if (d->tempItem.isEmpty())

d->tempItem.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

579

return;

never executed: return;

580

if (d->timer) {

d->timer	Description
TRUE	never evaluated
FALSE	never evaluated

581 qDeleteInEventHandler(d->timer); -

582 d->timer = 0; -

583

}

never executed: end of block

584 d->tempItem.clear(); -

585 hideOrShow(); -

586

}

never executed: end of block

587 -

588 /*! -

589 Returns the temporary message currently shown, -

590 or an empty string if there is no such message. -

591 -

592 \sa showMessage() -

593 */ -

594 QString QStatusBar::currentMessage() const -

595 { -

596 Q_D(const QStatusBar); -

597

return d->tempItem;

never executed: return d->tempItem;

598 } -

599 -

600 /*! -

601 \fn QStatusBar::messageChanged(const QString &message) -

602 -

603 This signal is emitted whenever the temporary status message -

604 changes. The new temporary message is passed in the \a message -

605 parameter which is a null-string when the message has been -

606 removed. -

607 -

608 \sa showMessage(), clearMessage() -

609 */ -

610 -

611 /*! -

612 Ensures that the right widgets are visible. -

613 -

614 Used by the showMessage() and clearMessage() functions. -

615 */ -

616 void QStatusBar::hideOrShow() -

617 { -

618 Q_D(QStatusBar); -

619 bool haveMessage = !d->tempItem.isEmpty(); -

620 -

621 QStatusBarPrivate::SBItem* item = 0; -

622

for (int i=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

623 item = d->items.at(i); -

624

if (!item || item->p)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

item->p	Description
TRUE	never evaluated
FALSE	never evaluated

625

break;

never executed: break;

626

if (haveMessage && item->w->isVisible()) {

haveMessage	Description
TRUE	never evaluated
FALSE	never evaluated

item->w->isVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

627 item->w->hide(); -

628 item->w->setAttribute(Qt::WA_WState_ExplicitShowHide, false); -

629

} else if (!haveMessage && !item->w->testAttribute(Qt::WA_WState_ExplicitShowHide)) {

never executed: end of block

!haveMessage	Description
TRUE	never evaluated
FALSE	never evaluated

!item->w->test...licitShowHide)	Description
TRUE	never evaluated
FALSE	never evaluated

630 item->w->show(); -

631

}

never executed: end of block

632

}

never executed: end of block

633 -

634 emit messageChanged(d->tempItem); -

635 -

636 #ifndef QT_NO_ACCESSIBILITY -

637

if (QAccessible::isActive()) {

QAccessible::isActive()	Description
TRUE	never evaluated
FALSE	never evaluated

638 QAccessibleEvent event(this, QAccessible::NameChanged); -

639 QAccessible::updateAccessibility(&event); -

640

}

never executed: end of block

641 #endif -

642 -

643 repaint(d->messageRect()); -

644

}

never executed: end of block

645 -

646 /*! -

647 \reimp -

648 */ -

649 void QStatusBar::showEvent(QShowEvent *) -

650 { -

651 #ifndef QT_NO_SIZEGRIP -

652 Q_D(QStatusBar); -

653

if (d->resizer && d->showSizeGrip)

d->resizer	Description
TRUE	never evaluated
FALSE	never evaluated

d->showSizeGrip	Description
TRUE	never evaluated
FALSE	never evaluated

654

d->tryToShowSizeGrip();

never executed: d->tryToShowSizeGrip();

655 #endif -

656

}

never executed: end of block

657 -

658 /*! -

659 \reimp -

660 \fn void QStatusBar::paintEvent(QPaintEvent *event) -

661 -

662 Shows the temporary message, if appropriate, in response to the -

663 paint \a event. -

664 */ -

665 void QStatusBar::paintEvent(QPaintEvent *event) -

666 { -

667 Q_D(QStatusBar); -

668 bool haveMessage = !d->tempItem.isEmpty(); -

669 -

670 QPainter p(this); -

671 QStyleOption opt; -

672 opt.initFrom(this); -

673 style()->drawPrimitive(QStyle::PE_PanelStatusBar, &opt, &p, this); -

674 -

675

for (int i=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

676 QStatusBarPrivate::SBItem* item = d->items.at(i); -

677

if (item && item->w->isVisible() && (!haveMessage || item->p)) {

item	Description
TRUE	never evaluated
FALSE	never evaluated

item->w->isVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

!haveMessage	Description
TRUE	never evaluated
FALSE	never evaluated

item->p	Description
TRUE	never evaluated
FALSE	never evaluated

678 QRect ir = item->w->geometry().adjusted(-2, -1, 2, 1); -

679

if (event->rect().intersects(ir)) {

event->rect().intersects(ir)	Description
TRUE	never evaluated
FALSE	never evaluated

680 QStyleOption opt(0); -

681 opt.rect = ir; -

682 opt.palette = palette(); -

683 opt.state = QStyle::State_None; -

684 style()->drawPrimitive(QStyle::PE_FrameStatusBarItem, &opt, &p, item->w); -

685

}

never executed: end of block

686

}

never executed: end of block

687

}

never executed: end of block

688

if (haveMessage) {

haveMessage	Description
TRUE	never evaluated
FALSE	never evaluated

689 p.setPen(palette().foreground().color()); -

690 p.drawText(d->messageRect(), Qt::AlignLeading | Qt::AlignVCenter | Qt::TextSingleLine, d->tempItem); -

691

}

never executed: end of block

692

}

never executed: end of block

693 -

694 /*! -

695 \reimp -

696 */ -

697 void QStatusBar::resizeEvent(QResizeEvent * e) -

698 { -

699 QWidget::resizeEvent(e); -

700

}

never executed: end of block

701 -

702 /*! -

703 \reimp -

704 */ -

705 -

706 bool QStatusBar::event(QEvent *e) -

707 { -

708 Q_D(QStatusBar); -

709 -

710

if (e->type() == QEvent::LayoutRequest

e->type() == Q...:LayoutRequest	Description
TRUE	never evaluated
FALSE	never evaluated

711 ) { -

712 // Calculate new strut height and call reformat() if it has changed -

713 int maxH = fontMetrics().height(); -

714 -

715 QStatusBarPrivate::SBItem* item = 0; -

716

for (int i=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

717 item = d->items.at(i); -

718

if (!item)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

719

break;

never executed: break;

720 int itemH = qMin(qSmartMinSize(item->w).height(), item->w->maximumHeight()); -

721 maxH = qMax(maxH, itemH); -

722

}

never executed: end of block

723 -

724 #ifndef QT_NO_SIZEGRIP -

725

if (d->resizer)

d->resizer	Description
TRUE	never evaluated
FALSE	never evaluated

726

maxH = qMax(maxH, d->resizer->sizeHint().height());

never executed: maxH = qMax(maxH, d->resizer->sizeHint().height());

727 #endif -

728 -

729

if (maxH != d->savedStrut)

maxH != d->savedStrut	Description
TRUE	never evaluated
FALSE	never evaluated

730

reformat();

never executed: reformat();

731 else -

732

update();

never executed: update();

733 } -

734

if (e->type() == QEvent::ChildRemoved) {

e->type() == Q...::ChildRemoved	Description
TRUE	never evaluated
FALSE	never evaluated

735 QStatusBarPrivate::SBItem* item = 0; -

736

for (int i=0; i<d->items.size(); ++i) {

i<d->items.size()	Description
TRUE	never evaluated
FALSE	never evaluated

737 item = d->items.at(i); -

738

if (!item)

!item	Description
TRUE	never evaluated
FALSE	never evaluated

739

break;

never executed: break;

740

if (item->w == ((QChildEvent*)e)->child()) {

item->w == ((Q...t*)e)->child()	Description
TRUE	never evaluated
FALSE	never evaluated

741 d->items.removeAt(i); -

742 delete item; -

743

}

never executed: end of block

744

}

never executed: end of block

745

}

never executed: end of block

746 -

747 // On Mac OS X Leopard it is possible to drag the window by clicking -

748 // on the tool bar on most applications. -

749 #ifndef Q_DEAD_CODE_FROM_QT4_MAC -

750

return QWidget::event(e);

never executed: return QWidget::event(e);

751 #else -

752 if (QSysInfo::MacintoshVersion <= QSysInfo::MV_10_4) -

753 return QWidget::event(e); -

754 -

755 // Enable drag-click only if the status bar is the status bar for a -

756 // QMainWindow with a unifed toolbar. -

757 if (parent() == 0 || qobject_cast<QMainWindow *>(parent()) == 0 || -

758 qobject_cast<QMainWindow *>(parent())->unifiedTitleAndToolBarOnMac() == false ) -

759 return QWidget::event(e); -

760 -

761 // Check for mouse events. -

762 QMouseEvent *mouseEvent; -

763 if (e->type() == QEvent::MouseButtonPress || -

764 e->type() == QEvent::MouseMove || -

765 e->type() == QEvent::MouseButtonRelease) { -

766 mouseEvent = static_cast <QMouseEvent*>(e); -

767 } else { -

768 return QWidget::event(e); -

769 } -

770 -

771 // The following is a standard mouse drag handler. -

772 if (e->type() == QEvent::MouseButtonPress && (mouseEvent->button() == Qt::LeftButton)) { -

773 d->dragStart = mouseEvent->pos(); -

774 } else if (e->type() == QEvent::MouseMove){ -

775 if (d->dragStart == QPoint()) -

776 return QWidget::event(e); -

777 QPoint pos = mouseEvent->pos(); -

778 QPoint delta = (pos - d->dragStart); -

779 window()->move(window()->pos() + delta); -

780 } else if (e->type() == QEvent::MouseButtonRelease && (mouseEvent->button() == Qt::LeftButton)){ -

781 d->dragStart = QPoint(); -

782 } else { -

783 return QWidget::event(e); -

784 } -

785 -

786 return true; -

787 #endif -

788 } -

789 -

790 QT_END_NAMESPACE -

791 -

792 #include "moc_qstatusbar.cpp" -

793 -

794 #endif -

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