qstyle.cpp

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39 -

40 #include "qstyle.h" -

41 #include "qapplication.h" -

42 #include "qpainter.h" -

43 #include "qwidget.h" -

44 #include "qbitmap.h" -

45 #include "qpixmapcache.h" -

46 #include "qstyleoption.h" -

47 #include "private/qstyle_p.h" -

48 #include "private/qguiapplication_p.h" -

49 #ifndef QT_NO_DEBUG -

50 #include "qdebug.h" -

51 #endif -

52 -

53 #include <limits.h> -

54 #include <algorithm> -

55 -

56 QT_BEGIN_NAMESPACE -

57 -

58 static const int MaxBits = 8 * sizeof(QSizePolicy::ControlType); -

59 -

60 static int unpackControlTypes(QSizePolicy::ControlTypes controls, QSizePolicy::ControlType *array) -

61 { -

if (!controls)

!controls	Description
TRUE	never evaluated
FALSE	never evaluated

return 0;

never executed: return 0;

64 -

65 // optimization: exactly one bit is set -

if ((controls & (controls - 1)) == 0) {

(controls & (c...ols - 1)) == 0	Description
TRUE	never evaluated
FALSE	never evaluated

67 array[0] = QSizePolicy::ControlType(uint(controls)); -

return 1;

never executed: return 1;

69 } -

70 -

71 int count = 0; -

for (int i = 0; i < MaxBits; ++i) {

i < MaxBits	Description
TRUE	never evaluated
FALSE	never evaluated

if (uint bit = (controls & (0x1 << i)))

uint bit = (co... & (0x1 << i))	Description
TRUE	never evaluated
FALSE	never evaluated

array[count++] = QSizePolicy::ControlType(bit);

never executed: array[count++] = QSizePolicy::ControlType(bit);

}

never executed: end of block

return count;

never executed: return count;

77 } -

78 -

79 /*! -

80 \page qwidget-styling.html -

81 \title Styling -

82 -

83 Qt's built-in widgets use the QStyle class to perform nearly all -

84 of their drawing. QStyle is an abstract base class that -

85 encapsulates the look and feel of a GUI, and can be used to make -

86 the widgets look exactly like the equivalent native widgets or to -

87 give the widgets a custom look. -

88 -

89 Qt provides a set of QStyle subclasses that emulate the native -

90 look of the different platforms supported by Qt (QWindowsStyle, -

91 QMacStyle, etc.). These styles are built into the -

92 Qt GUI module, other styles can be made available using Qt's -

93 plugin mechansim. -

94 -

95 Most functions for drawing style elements take four arguments: -

96 -

97 \list -

98 \li an enum value specifying which graphical element to draw -

99 \li a QStyleOption object specifying how and where to render that element -

100 \li a QPainter object that should be used to draw the element -

101 \li a QWidget object on which the drawing is performed (optional) -

102 \endlist -

103 -

104 The style gets all the information it needs to render the -

105 graphical element from the QStyleOption class. The widget is -

106 passed as the last argument in case the style needs it to perform -

107 special effects (such as animated default buttons on \macos), -

108 but it isn't mandatory. In fact, QStyle can be used to draw on any -

109 paint device (not just widgets), in which case the widget argument -

110 is a zero pointer. -

111 -

112 \image paintsystem-stylepainter.png -

113 -

114 The paint system also provides the QStylePainter class inheriting -

115 from QPainter. QStylePainter is a convenience class for drawing -

116 QStyle elements inside a widget, and extends QPainter with a set -

117 of high-level drawing functions implemented on top of QStyle's -

118 API. The advantage of using QStylePainter is that the parameter -

119 lists get considerably shorter. -

120 -

121 \table 100% -

122 \row -

123 \li \inlineimage paintsystem-icon.png -

124 \li \b QIcon -

125 -

126 The QIcon class provides scalable icons in different modes and states. -

127 -

128 QIcon can generate pixmaps reflecting an icon's state, mode and -

129 size. These pixmaps are generated from the set of pixmaps -

130 made available to the icon, and are used by Qt widgets to show an -

131 icon representing a particular action. -

132 -

133 The rendering of a QIcon object is handled by the QIconEngine -

134 class. Each icon has a corresponding icon engine that is -

135 responsible for drawing the icon with a requested size, mode and -

136 state. -

137 -

138 \endtable -

139 -

140 For more information about widget styling and appearance, see the -

141 \l{Styles and Style Aware Widgets}. -

142 */ -

143 -

144 -

145 /*! -

146 \class QStyle -

147 \brief The QStyle class is an abstract base class that encapsulates the look and feel of a GUI. -

148 -

149 \ingroup appearance -

150 \inmodule QtWidgets -

151 -

152 Qt contains a set of QStyle subclasses that emulate the styles of -

153 the different platforms supported by Qt (QWindowsStyle, -

154 QMacStyle etc.). By default, these styles are built -

155 into the Qt GUI module. Styles can also be made available as -

156 plugins. -

157 -

158 Qt's built-in widgets use QStyle to perform nearly all of their -

159 drawing, ensuring that they look exactly like the equivalent -

160 native widgets. The diagram below shows a QComboBox in nine -

161 different styles. -

162 -

163 \image qstyle-comboboxes.png Nine combo boxes -

164 -

165 Topics: -

166 -

167 \tableofcontents -

168 -

169 \section1 Setting a Style -

170 -

171 The style of the entire application can be set using the -

172 QApplication::setStyle() function. It can also be specified by the -

173 user of the application, using the \c -style command-line option: -

174 -

175 \snippet code/src_gui_styles_qstyle.cpp 0 -

176 -

177 If no style is specified, Qt will choose the most appropriate -

178 style for the user's platform or desktop environment. -

179 -

180 A style can also be set on an individual widget using the -

181 QWidget::setStyle() function. -

182 -

183 \section1 Developing Style-Aware Custom Widgets -

184 -

185 If you are developing custom widgets and want them to look good on -

186 all platforms, you can use QStyle functions to perform parts of -

187 the widget drawing, such as drawItemText(), drawItemPixmap(), -

188 drawPrimitive(), drawControl(), and drawComplexControl(). -

189 -

190 Most QStyle draw functions take four arguments: -

191 \list -

192 \li an enum value specifying which graphical element to draw -

193 \li a QStyleOption specifying how and where to render that element -

194 \li a QPainter that should be used to draw the element -

195 \li a QWidget on which the drawing is performed (optional) -

196 \endlist -

197 -

198 For example, if you want to draw a focus rectangle on your -

199 widget, you can write: -

200 -

201 \snippet styles/styles.cpp 1 -

202 -

203 QStyle gets all the information it needs to render the graphical -

204 element from QStyleOption. The widget is passed as the last -

205 argument in case the style needs it to perform special effects -

206 (such as animated default buttons on \macos), but it isn't -

207 mandatory. In fact, you can use QStyle to draw on any paint -

208 device, not just widgets, by setting the QPainter properly. -

209 -

210 QStyleOption has various subclasses for the various types of -

211 graphical elements that can be drawn. For example, -

212 PE_FrameFocusRect expects a QStyleOptionFocusRect argument. -

213 -

214 To ensure that drawing operations are as fast as possible, -

215 QStyleOption and its subclasses have public data members. See the -

216 QStyleOption class documentation for details on how to use it. -

217 -

218 For convenience, Qt provides the QStylePainter class, which -

219 combines a QStyle, a QPainter, and a QWidget. This makes it -

220 possible to write -

221 -

222 \snippet styles/styles.cpp 5 -

223 \dots -

224 \snippet styles/styles.cpp 7 -

225 -

226 instead of -

227 -

228 \snippet styles/styles.cpp 2 -

229 \dots -

230 \snippet styles/styles.cpp 3 -

231 -

232 \section1 Creating a Custom Style -

233 -

234 You can create a custom look and feel for your application by -

235 creating a custom style. There are two approaches to creating a -

236 custom style. In the static approach, you either choose an -

237 existing QStyle class, subclass it, and reimplement virtual -

238 functions to provide the custom behavior, or you create an entire -

239 QStyle class from scratch. In the dynamic approach, you modify the -

240 behavior of your system style at runtime. The static approach is -

241 described below. The dynamic approach is described in QProxyStyle. -

242 -

243 The first step in the static approach is to pick one of the styles -

244 provided by Qt from which you will build your custom style. Your -

245 choice of QStyle class will depend on which style resembles your -

246 desired style the most. The most general class that you can use as -

247 a base is QCommonStyle (not QStyle). This is because Qt requires -

248 its styles to be \l{QCommonStyle}s. -

249 -

250 Depending on which parts of the base style you want to change, -

251 you must reimplement the functions that are used to draw those -

252 parts of the interface. To illustrate this, we will modify the -

253 look of the spin box arrows drawn by QWindowsStyle. The arrows -

254 are \e{primitive elements} that are drawn by the drawPrimitive() -

255 function, so we need to reimplement that function. We need the -

256 following class declaration: -

257 -

258 \snippet customstyle/customstyle.h 0 -

259 -

260 To draw its up and down arrows, QSpinBox uses the -

261 PE_IndicatorSpinUp and PE_IndicatorSpinDown primitive elements. -

262 Here's how to reimplement the drawPrimitive() function to draw -

263 them differently: -

264 -

265 \snippet customstyle/customstyle.cpp 2 -

266 \snippet customstyle/customstyle.cpp 3 -

267 \snippet customstyle/customstyle.cpp 4 -

268 -

269 Notice that we don't use the \c widget argument, except to pass it -

270 on to the QWindowStyle::drawPrimitive() function. As mentioned -

271 earlier, the information about what is to be drawn and how it -

272 should be drawn is specified by a QStyleOption object, so there is -

273 no need to ask the widget. -

274 -

275 If you need to use the \c widget argument to obtain additional -

276 information, be careful to ensure that it isn't 0 and that it is -

277 of the correct type before using it. For example: -

278 -

279 \snippet customstyle/customstyle.cpp 0 -

280 \dots -

281 \snippet customstyle/customstyle.cpp 1 -

282 -

283 When implementing a custom style, you cannot assume that the -

284 widget is a QSpinBox just because the enum value is called -

285 PE_IndicatorSpinUp or PE_IndicatorSpinDown. -

286 -

287 The documentation for the \l{widgets/styles}{Styles} example -

288 covers this topic in more detail. -

289 -

290 \warning Qt style sheets are currently not supported for custom QStyle -

291 subclasses. We plan to address this in some future release. -

292 -

293 -

294 \section1 Using a Custom Style -

295 -

296 There are several ways of using a custom style in a Qt -

297 application. The simplest way is to pass the custom style to the -

298 QApplication::setStyle() static function before creating the -

299 QApplication object: -

300 -

301 \snippet customstyle/main.cpp using a custom style -

302 -

303 You can call QApplication::setStyle() at any time, but by calling -

304 it before the constructor, you ensure that the user's preference, -

305 set using the \c -style command-line option, is respected. -

306 -

307 You may want to make your custom style available for use in other -

308 applications, which may not be yours and hence not available for -

309 you to recompile. The Qt Plugin system makes it possible to create -

310 styles as plugins. Styles created as plugins are loaded as shared -

311 objects at runtime by Qt itself. Please refer to the \l{How to Create Qt Plugins}{Qt Plugin} -

312 documentation for more information on how to go about creating a style -

313 plugin. -

314 -

315 Compile your plugin and put it into Qt's \c plugins/styles -

316 directory. We now have a pluggable style that Qt can load -

317 automatically. To use your new style with existing applications, -

318 simply start the application with the following argument: -

319 -

320 \snippet code/src_gui_styles_qstyle.cpp 1 -

321 -

322 The application will use the look and feel from the custom style you -

323 implemented. -

324 -

325 \section1 Right-to-Left Desktops -

326 -

327 Languages written from right to left (such as Arabic and Hebrew) -

328 usually also mirror the whole layout of widgets, and require the -

329 light to come from the screen's top-right corner instead of -

330 top-left. -

331 -

332 If you create a custom style, you should take special care when -

333 drawing asymmetric elements to make sure that they also look -

334 correct in a mirrored layout. An easy way to test your styles is -

335 to run applications with the \c -reverse command-line option or -

336 to call QApplication::setLayoutDirection() in your \c main() -

337 function. -

338 -

339 Here are some things to keep in mind when making a style work well in a -

340 right-to-left environment: -

341 -

342 \list -

343 \li subControlRect() and subElementRect() return rectangles in screen coordinates -

344 \li QStyleOption::direction indicates in which direction the item should be drawn in -

345 \li If a style is not right-to-left aware it will display items as if it were left-to-right -

346 \li visualRect(), visualPos(), and visualAlignment() are helpful functions that will -

347 translate from logical to screen representations. -

348 \li alignedRect() will return a logical rect aligned for the current direction -

349 \endlist -

350 -

351 \section1 Styles in Item Views -

352 -

353 The painting of items in views is performed by a delegate. Qt's -

354 default delegate, QStyledItemDelegate, is also used for calculating bounding -

355 rectangles of items, and their sub-elements for the various kind -

356 of item \l{Qt::ItemDataRole}{data roles} -

357 QStyledItemDelegate supports. See the QStyledItemDelegate class -

358 description to find out which datatypes and roles are supported. You -

359 can read more about item data roles in \l{Model/View Programming}. -

360 -

361 When QStyledItemDelegate paints its items, it draws -

362 CE_ItemViewItem, and calculates their size with CT_ItemViewItem. -

363 Note also that it uses SE_ItemViewItemText to set the size of -

364 editors. When implementing a style to customize drawing of item -

365 views, you need to check the implementation of QCommonStyle (and -

366 any other subclasses from which your style -

367 inherits). This way, you find out which and how -

368 other style elements are painted, and you can then reimplement the -

369 painting of elements that should be drawn differently. -

370 -

371 We include a small example where we customize the drawing of item -

372 backgrounds. -

373 -

374 \snippet customviewstyle.cpp 0 -

375 -

376 The primitive element PE_PanelItemViewItem is responsible for -

377 painting the background of items, and is called from -

378 \l{QCommonStyle}'s implementation of CE_ItemViewItem. -

379 -

380 To add support for drawing of new datatypes and item data roles, -

381 it is necessary to create a custom delegate. But if you only -

382 need to support the datatypes implemented by the default -

383 delegate, a custom style does not need an accompanying -

384 delegate. The QStyledItemDelegate class description gives more -

385 information on custom delegates. -

386 -

387 The drawing of item view headers is also done by the style, giving -

388 control over size of header items and row and column sizes. -

389 -

390 \sa QStyleOption, QStylePainter, {Styles Example}, -

391 {Styles and Style Aware Widgets}, QStyledItemDelegate, {Styling} -

392 */ -

393 -

394 /*! -

395 Constructs a style object. -

396 */ -

397 QStyle::QStyle() -

398 : QObject(*new QStylePrivate) -

399 { -

400 Q_D(QStyle); -

401 d->proxyStyle = this; -

402

}

never executed: end of block

403 -

404 /*! -

405 \internal -

406 -

407 Constructs a style object. -

408 */ -

409 QStyle::QStyle(QStylePrivate &dd) -

410 : QObject(dd) -

411 { -

412 Q_D(QStyle); -

413 d->proxyStyle = this; -

414

}

never executed: end of block

415 -

416 /*! -

417 Destroys the style object. -

418 */ -

419 QStyle::~QStyle() -

420 { -

421 } -

422 -

423 /*! -

424 Initializes the appearance of the given \a widget. -

425 -

426 This function is called for every widget at some point after it -

427 has been fully created but just \e before it is shown for the very -

428 first time. -

429 -

430 Note that the default implementation does nothing. Reasonable -

431 actions in this function might be to call the -

432 QWidget::setBackgroundMode() function for the widget. Do not use -

433 the function to set, for example, the geometry. Reimplementing -

434 this function provides a back-door through which the appearance -

435 of a widget can be changed, but with Qt's style engine it is -

436 rarely necessary to implement this function; reimplement -

437 drawItemPixmap(), drawItemText(), drawPrimitive(), etc. instead. -

438 -

439 The QWidget::inherits() function may provide enough information to -

440 allow class-specific customizations. But because new QStyle -

441 subclasses are expected to work reasonably with all current and \e -

442 future widgets, limited use of hard-coded customization is -

443 recommended. -

444 -

445 \sa unpolish() -

446 */ -

447 void QStyle::polish(QWidget * /* widget */) -

448 { -

449 } -

450 -

451 /*! -

452 Uninitialize the given \a{widget}'s appearance. -

453 -

454 This function is the counterpart to polish(). It is called for -

455 every polished widget whenever the style is dynamically changed; -

456 the former style has to unpolish its settings before the new style -

457 can polish them again. -

458 -

459 Note that unpolish() will only be called if the widget is -

460 destroyed. This can cause problems in some cases, e.g, if you -

461 remove a widget from the UI, cache it, and then reinsert it after -

462 the style has changed; some of Qt's classes cache their widgets. -

463 -

464 \sa polish() -

465 */ -

466 void QStyle::unpolish(QWidget * /* widget */) -

467 { -

468 } -

469 -

470 /*! -

471 \fn void QStyle::polish(QApplication * application) -

472 \overload -

473 -

474 Late initialization of the given \a application object. -

475 */ -

476 void QStyle::polish(QApplication * /* app */) -

477 { -

478 } -

479 -

480 /*! -

481 \fn void QStyle::unpolish(QApplication * application) -

482 \overload -

483 -

484 Uninitialize the given \a application. -

485 */ -

486 void QStyle::unpolish(QApplication * /* app */) -

487 { -

488 } -

489 -

490 /*! -

491 \fn void QStyle::polish(QPalette & palette) -

492 \overload -

493 -

494 Changes the \a palette according to style specific requirements -

495 for color palettes (if any). -

496 -

497 \sa QPalette, QApplication::setPalette() -

498 */ -

499 void QStyle::polish(QPalette & /* pal */) -

500 { -

501 } -

502 -

503 /*! -

504 \fn QRect QStyle::itemTextRect(const QFontMetrics &metrics, const QRect &rectangle, int alignment, bool enabled, const QString &text) const -

505 -

506 Returns the area within the given \a rectangle in which to draw -

507 the provided \a text according to the specified font \a metrics -

508 and \a alignment. The \a enabled parameter indicates whether or -

509 not the associated item is enabled. -

510 -

511 If the given \a rectangle is larger than the area needed to render -

512 the \a text, the rectangle that is returned will be offset within -

513 \a rectangle according to the specified \a alignment. For -

514 example, if \a alignment is Qt::AlignCenter, the returned -

515 rectangle will be centered within \a rectangle. If the given \a -

516 rectangle is smaller than the area needed, the returned rectangle -

517 will be the smallest rectangle large enough to render the \a text. -

518 -

519 \sa Qt::Alignment -

520 */ -

521 QRect QStyle::itemTextRect(const QFontMetrics &metrics, const QRect &rect, int alignment, bool enabled, -

522 const QString &text) const -

523 { -

524 QRect result; -

525 int x, y, w, h; -

526 rect.getRect(&x, &y, &w, &h); -

527

if (!text.isEmpty()) {

!text.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

528 result = metrics.boundingRect(x, y, w, h, alignment, text); -

529

if (!enabled && proxy()->styleHint(SH_EtchDisabledText)) {

!enabled	Description
TRUE	never evaluated
FALSE	never evaluated

proxy()->style...hDisabledText)	Description
TRUE	never evaluated
FALSE	never evaluated

530 result.setWidth(result.width()+1); -

531 result.setHeight(result.height()+1); -

532

}

never executed: end of block

533

} else {

never executed: end of block

534 result = QRect(x, y, w, h); -

535

}

never executed: end of block

536

return result;

never executed: return result;

537 } -

538 -

539 /*! -

540 \fn QRect QStyle::itemPixmapRect(const QRect &rectangle, int alignment, const QPixmap &pixmap) const -

541 -

542 Returns the area within the given \a rectangle in which to draw -

543 the specified \a pixmap according to the defined \a alignment. -

544 */ -

545 QRect QStyle::itemPixmapRect(const QRect &rect, int alignment, const QPixmap &pixmap) const -

546 { -

547 QRect result; -

548 int x, y, w, h; -

549 rect.getRect(&x, &y, &w, &h); -

550 -

551 const int pixmapWidth = pixmap.width()/pixmap.devicePixelRatio(); -

552 const int pixmapHeight = pixmap.height()/pixmap.devicePixelRatio(); -

553 -

554

if ((alignment & Qt::AlignVCenter) == Qt::AlignVCenter)

(alignment & Q...::AlignVCenter	Description
TRUE	never evaluated
FALSE	never evaluated

555

y += h/2 - pixmapHeight/2;

never executed: y += h/2 - pixmapHeight/2;

556

else if ((alignment & Qt::AlignBottom) == Qt::AlignBottom)

(alignment & Q...t::AlignBottom	Description
TRUE	never evaluated
FALSE	never evaluated

557

y += h - pixmapHeight;

never executed: y += h - pixmapHeight;

558

if ((alignment & Qt::AlignRight) == Qt::AlignRight)

(alignment & Q...Qt::AlignRight	Description
TRUE	never evaluated
FALSE	never evaluated

559

x += w - pixmapWidth;

never executed: x += w - pixmapWidth;

560

else if ((alignment & Qt::AlignHCenter) == Qt::AlignHCenter)

(alignment & Q...::AlignHCenter	Description
TRUE	never evaluated
FALSE	never evaluated

561

x += w/2 - pixmapWidth/2;

never executed: x += w/2 - pixmapWidth/2;

562

else if ((alignment & Qt::AlignLeft) != Qt::AlignLeft && QApplication::isRightToLeft())

(alignment & Q... Qt::AlignLeft	Description
TRUE	never evaluated
FALSE	never evaluated

QApplication::isRightToLeft()	Description
TRUE	never evaluated
FALSE	never evaluated

563

x += w - pixmapWidth;

never executed: x += w - pixmapWidth;

564 result = QRect(x, y, pixmapWidth, pixmapHeight); -

565

return result;

never executed: return result;

566 } -

567 -

568 /*! -

569 \fn void QStyle::drawItemText(QPainter *painter, const QRect &rectangle, int alignment, const QPalette &palette, bool enabled, const QString& text, QPalette::ColorRole textRole) const -

570 -

571 Draws the given \a text in the specified \a rectangle using the -

572 provided \a painter and \a palette. -

573 -

574 The text is drawn using the painter's pen, and aligned and wrapped -

575 according to the specified \a alignment. If an explicit \a -

576 textRole is specified, the text is drawn using the \a palette's -

577 color for the given role. The \a enabled parameter indicates -

578 whether or not the item is enabled; when reimplementing this -

579 function, the \a enabled parameter should influence how the item is -

580 drawn. -

581 -

582 \sa Qt::Alignment, drawItemPixmap() -

583 */ -

584 void QStyle::drawItemText(QPainter *painter, const QRect &rect, int alignment, const QPalette &pal, -

585 bool enabled, const QString& text, QPalette::ColorRole textRole) const -

586 { -

587

if (text.isEmpty())

text.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

588

return;

never executed: return;

589 QPen savedPen; -

590

if (textRole != QPalette::NoRole) {

textRole != QPalette::NoRole	Description
TRUE	never evaluated
FALSE	never evaluated

591 savedPen = painter->pen(); -

592 painter->setPen(QPen(pal.brush(textRole), savedPen.widthF())); -

593

}

never executed: end of block

594

if (!enabled) {

!enabled	Description
TRUE	never evaluated
FALSE	never evaluated

595

if (proxy()->styleHint(SH_DitherDisabledText)) {

proxy()->style...rDisabledText)	Description
TRUE	never evaluated
FALSE	never evaluated

596 QRect br; -

597 painter->drawText(rect, alignment, text, &br); -

598 painter->fillRect(br, QBrush(painter->background().color(), Qt::Dense5Pattern)); -

599

return;

never executed: return;

600

} else if (proxy()->styleHint(SH_EtchDisabledText)) {

proxy()->style...hDisabledText)	Description
TRUE	never evaluated
FALSE	never evaluated

601 QPen pen = painter->pen(); -

602 painter->setPen(pal.light().color()); -

603 painter->drawText(rect.adjusted(1, 1, 1, 1), alignment, text); -

604 painter->setPen(pen); -

605

}

never executed: end of block

606

}

never executed: end of block

607 painter->drawText(rect, alignment, text); -

608

if (textRole != QPalette::NoRole)

textRole != QPalette::NoRole	Description
TRUE	never evaluated
FALSE	never evaluated

609

painter->setPen(savedPen);

never executed: painter->setPen(savedPen);

610

}

never executed: end of block

611 -

612 /*! -

613 \fn void QStyle::drawItemPixmap(QPainter *painter, const QRect &rectangle, int alignment, -

614 const QPixmap &pixmap) const -

615 -

616 Draws the given \a pixmap in the specified \a rectangle, according -

617 to the specified \a alignment, using the provided \a painter. -

618 -

619 \sa drawItemText() -

620 */ -

621 -

622 void QStyle::drawItemPixmap(QPainter *painter, const QRect &rect, int alignment, -

623 const QPixmap &pixmap) const -

624 { -

625 qreal scale = pixmap.devicePixelRatio(); -

626 QRect aligned = alignedRect(QApplication::layoutDirection(), QFlag(alignment), pixmap.size() / scale, rect); -

627 QRect inter = aligned.intersected(rect); -

628 -

629 painter->drawPixmap(inter.x(), inter.y(), pixmap, inter.x() - aligned.x(), inter.y() - aligned.y(), inter.width() * scale, inter.height() *scale); -

630

}

never executed: end of block

631 -

632 /*! -

633 \enum QStyle::PrimitiveElement -

634 -

635 This enum describes the various primitive elements. A -

636 primitive element is a common GUI element, such as a checkbox -

637 indicator or button bevel. -

638 -

639 \omitvalue PE_IndicatorViewItemCheck -

640 \value PE_FrameStatusBar Obsolete. Use PE_FrameStatusBarItem instead. -

641 -

642 \value PE_PanelButtonCommand Button used to initiate an action, for -

643 example, a QPushButton. -

644 -

645 \value PE_FrameDefaultButton This frame around a default button, e.g. in a dialog. -

646 \value PE_PanelButtonBevel Generic panel with a button bevel. -

647 \value PE_PanelButtonTool Panel for a Tool button, used with QToolButton. -

648 \value PE_PanelLineEdit Panel for a QLineEdit. -

649 \value PE_IndicatorButtonDropDown Indicator for a drop down button, for example, a tool -

650 button that displays a menu. -

651 -

652 \value PE_FrameFocusRect Generic focus indicator. -

653 -

654 \value PE_IndicatorArrowUp Generic Up arrow. -

655 \value PE_IndicatorArrowDown Generic Down arrow. -

656 \value PE_IndicatorArrowRight Generic Right arrow. -

657 \value PE_IndicatorArrowLeft Generic Left arrow. -

658 -

659 \value PE_IndicatorSpinUp Up symbol for a spin widget, for example a QSpinBox. -

660 \value PE_IndicatorSpinDown Down symbol for a spin widget. -

661 \value PE_IndicatorSpinPlus Increase symbol for a spin widget. -

662 \value PE_IndicatorSpinMinus Decrease symbol for a spin widget. -

663 -

664 \value PE_IndicatorItemViewItemCheck On/off indicator for a view item. -

665 -

666 \value PE_IndicatorCheckBox On/off indicator, for example, a QCheckBox. -

667 \value PE_IndicatorRadioButton Exclusive on/off indicator, for example, a QRadioButton. -

668 -

669 \value PE_IndicatorDockWidgetResizeHandle Resize handle for dock windows. -

670 -

671 \value PE_Frame Generic frame -

672 \value PE_FrameMenu Frame for popup windows/menus; see also QMenu. -

673 \value PE_PanelMenuBar Panel for menu bars. -

674 \value PE_PanelScrollAreaCorner Panel at the bottom-right (or -

675 bottom-left) corner of a scroll area. -

676 -

677 \value PE_FrameDockWidget Panel frame for dock windows and toolbars. -

678 \value PE_FrameTabWidget Frame for tab widgets. -

679 \value PE_FrameLineEdit Panel frame for line edits. -

680 \value PE_FrameGroupBox Panel frame around group boxes. -

681 \value PE_FrameButtonBevel Panel frame for a button bevel. -

682 \value PE_FrameButtonTool Panel frame for a tool button. -

683 -

684 \value PE_IndicatorHeaderArrow Arrow used to indicate sorting on a list or table -

685 header. -

686 \value PE_FrameStatusBarItem Frame for an item of a status bar; see also QStatusBar. -

687 -

688 \value PE_FrameWindow Frame around a MDI window or a docking window. -

689 -

690 \value PE_IndicatorMenuCheckMark Check mark used in a menu. -

691 -

692 \value PE_IndicatorProgressChunk Section of a progress bar indicator; see also QProgressBar. -

693 -

694 \value PE_IndicatorBranch Lines used to represent the branch of a tree in a tree view. -

695 \value PE_IndicatorToolBarHandle The handle of a toolbar. -

696 \value PE_IndicatorToolBarSeparator The separator in a toolbar. -

697 \value PE_PanelToolBar The panel for a toolbar. -

698 \value PE_PanelTipLabel The panel for a tip label. -

699 \value PE_FrameTabBarBase The frame that is drawn for a tab bar, ususally drawn for a tab bar that isn't part of a tab widget. -

700 \value PE_IndicatorTabTear Deprecated. Use \l{PE_IndicatorTabTearLeft} instead. -

701 \value PE_IndicatorTabTearLeft An indicator that a tab is partially scrolled out on the left side of the visible tab bar when there are many tabs. -

702 \value PE_IndicatorTabTearRight An indicator that a tab is partially scrolled out on the right side of the visible tab bar when there are many tabs. -

703 \value PE_IndicatorColumnViewArrow An arrow in a QColumnView. -

704 -

705 \value PE_Widget A plain QWidget. -

706 -

707 \value PE_CustomBase Base value for custom primitive elements. -

708 All values above this are reserved for custom use. Custom values -

709 must be greater than this value. -

710 -

711 \value PE_IndicatorItemViewItemDrop An indicator that is drawn to show where an item in an item view is about to be dropped -

712 during a drag-and-drop operation in an item view. -

713 \value PE_PanelItemViewItem The background for an item in an item view. -

714 \value PE_PanelItemViewRow The background of a row in an item view. -

715 -

716 \value PE_PanelStatusBar The panel for a status bar. -

717 -

718 \value PE_IndicatorTabClose The close button on a tab bar. -

719 \value PE_PanelMenu The panel for a menu. -

720 -

721 \sa drawPrimitive() -

722 */ -

723 -

724 -

725 /*! -

726 \enum QStyle::StateFlag -

727 -

728 This enum describes flags that are used when drawing primitive -

729 elements. -

730 -

731 Note that not all primitives use all of these flags, and that the -

732 flags may mean different things to different items. -

733 -

734 \value State_None Indicates that the widget does not have a state. -

735 \value State_Active Indicates that the widget is active. -

736 \value State_AutoRaise Used to indicate if auto-raise appearance should be used on a tool button. -

737 \value State_Children Used to indicate if an item view branch has children. -

738 \value State_DownArrow Used to indicate if a down arrow should be visible on the widget. -

739 \value State_Editing Used to indicate if an editor is opened on the widget. -

740 \value State_Enabled Used to indicate if the widget is enabled. -

741 \value State_HasEditFocus Used to indicate if the widget currently has edit focus. -

742 \value State_HasFocus Used to indicate if the widget has focus. -

743 \value State_Horizontal Used to indicate if the widget is laid out horizontally, for example. a tool bar. -

744 \value State_KeyboardFocusChange Used to indicate if the focus was changed with the keyboard, e.g., tab, backtab or shortcut. -

745 \value State_MouseOver Used to indicate if the widget is under the mouse. -

746 \value State_NoChange Used to indicate a tri-state checkbox. -

747 \value State_Off Used to indicate if the widget is not checked. -

748 \value State_On Used to indicate if the widget is checked. -

749 \value State_Raised Used to indicate if a button is raised. -

750 \value State_ReadOnly Used to indicate if a widget is read-only. -

751 \value State_Selected Used to indicate if a widget is selected. -

752 \value State_Item Used by item views to indicate if a horizontal branch should be drawn. -

753 \value State_Open Used by item views to indicate if the tree branch is open. -

754 \value State_Sibling Used by item views to indicate if a vertical line needs to be drawn (for siblings). -

755 \value State_Sunken Used to indicate if the widget is sunken or pressed. -

756 \value State_UpArrow Used to indicate if an up arrow should be visible on the widget. -

757 \value State_Mini Used to indicate a mini style Mac widget or button. -

758 \value State_Small Used to indicate a small style Mac widget or button. -

759 \omitvalue State_Window -

760 \omitvalue State_Bottom -

761 \omitvalue State_FocusAtBorder -

762 \omitvalue State_Top -

763 -

764 \sa drawPrimitive() -

765 */ -

766 -

767 /*! -

768 \fn void QStyle::drawPrimitive(PrimitiveElement element, const QStyleOption *option, \ -

769 QPainter *painter, const QWidget *widget) const -

770 -

771 Draws the given primitive \a element with the provided \a painter using the style -

772 options specified by \a option. -

773 -

774 The \a widget argument is optional and may contain a widget that may -

775 aid in drawing the primitive element. -

776 -

777 The table below is listing the primitive elements and their -

778 associated style option subclasses. The style options contain all -

779 the parameters required to draw the elements, including -

780 QStyleOption::state which holds the style flags that are used when -

781 drawing. The table also describes which flags that are set when -

782 casting the given option to the appropriate subclass. -

783 -

784 Note that if a primitive element is not listed here, it is because -

785 it uses a plain QStyleOption object. -

786 -

787 \table -

788 \header \li Primitive Element \li QStyleOption Subclass \li Style Flag \li Remark -

789 \row \li \l PE_FrameFocusRect \li \l QStyleOptionFocusRect -

790 \li \l State_FocusAtBorder -

791 \li Whether the focus is is at the border or inside the widget. -

792 \row \li{1,2} \l PE_IndicatorCheckBox \li{1,2} \l QStyleOptionButton -

793 \li \l State_NoChange \li Indicates a "tri-state" checkbox. -

794 \row \li \l State_On \li Indicates the indicator is checked. -

795 \row \li \l PE_IndicatorRadioButton \li \l QStyleOptionButton -

796 \li \l State_On \li Indicates that a radio button is selected. -

797 \row \li \l State_NoChange \li Indicates a "tri-state" controller. -

798 \row \li \l State_Enabled \li Indicates the controller is enabled. -

799 \row \li{1,4} \l PE_IndicatorBranch \li{1,4} \l QStyleOption -

800 \li \l State_Children \li Indicates that the control for expanding the tree to show child items, should be drawn. -

801 \row \li \l State_Item \li Indicates that a horizontal branch (to show a child item), should be drawn. -

802 \row \li \l State_Open \li Indicates that the tree branch is expanded. -

803 \row \li \l State_Sibling \li Indicates that a vertical line (to show a sibling item), should be drawn. -

804 \row \li \l PE_IndicatorHeaderArrow \li \l QStyleOptionHeader -

805 \li \l State_UpArrow \li Indicates that the arrow should be drawn up; -

806 otherwise it should be down. -

807 \row \li \l PE_FrameGroupBox, \l PE_Frame, \l PE_FrameLineEdit, -

808 \l PE_FrameMenu, \l PE_FrameDockWidget, \l PE_FrameWindow -

809 \li \l QStyleOptionFrame \li \l State_Sunken -

810 \li Indicates that the Frame should be sunken. -

811 \row \li \l PE_IndicatorToolBarHandle \li \l QStyleOption -

812 \li \l State_Horizontal \li Indicates that the window handle is horizontal -

813 instead of vertical. -

814 \row \li \l PE_IndicatorSpinPlus, \l PE_IndicatorSpinMinus, \l PE_IndicatorSpinUp, -

815 \l PE_IndicatorSpinDown, -

816 \li \l QStyleOptionSpinBox -

817 \li \l State_Sunken \li Indicates that the button is pressed. -

818 \row \li{1,5} \l PE_PanelButtonCommand -

819 \li{1,5} \l QStyleOptionButton -

820 \li \l State_Enabled \li Set if the button is enabled. -

821 \row \li \l State_HasFocus \li Set if the button has input focus. -

822 \row \li \l State_Raised \li Set if the button is not down, not on and not flat. -

823 \row \li \l State_On \li Set if the button is a toggle button and is toggled on. -

824 \row \li \l State_Sunken -

825 \li Set if the button is down (i.e., the mouse button or the -

826 space bar is pressed on the button). -

827 \endtable -

828 -

829 \sa drawComplexControl(), drawControl() -

830 */ -

831 -

832 /*! -

833 \enum QStyle::ControlElement -

834 -

835 This enum represents a control element. A control element is a -

836 part of a widget that performs some action or displays information -

837 to the user. -

838 -

839 \value CE_PushButton A QPushButton, draws CE_PushButtonBevel, CE_PushButtonLabel and PE_FrameFocusRect. -

840 \value CE_PushButtonBevel The bevel and default indicator of a QPushButton. -

841 \value CE_PushButtonLabel The label (an icon with text or pixmap) of a QPushButton. -

842 -

843 \value CE_DockWidgetTitle Dock window title. -

844 \value CE_Splitter Splitter handle; see also QSplitter. -

845 -

846 -

847 \value CE_CheckBox A QCheckBox, draws a PE_IndicatorCheckBox, a CE_CheckBoxLabel and a PE_FrameFocusRect. -

848 \value CE_CheckBoxLabel The label (text or pixmap) of a QCheckBox. -

849 -

850 \value CE_RadioButton A QRadioButton, draws a PE_IndicatorRadioButton, a CE_RadioButtonLabel and a PE_FrameFocusRect. -

851 \value CE_RadioButtonLabel The label (text or pixmap) of a QRadioButton. -

852 -

853 \value CE_TabBarTab The tab and label within a QTabBar. -

854 \value CE_TabBarTabShape The tab shape within a tab bar. -

855 \value CE_TabBarTabLabel The label within a tab. -

856 -

857 \value CE_ProgressBar A QProgressBar, draws CE_ProgressBarGroove, CE_ProgressBarContents and CE_ProgressBarLabel. -

858 \value CE_ProgressBarGroove The groove where the progress -

859 indicator is drawn in a QProgressBar. -

860 \value CE_ProgressBarContents The progress indicator of a QProgressBar. -

861 \value CE_ProgressBarLabel The text label of a QProgressBar. -

862 -

863 \value CE_ToolButtonLabel A tool button's label. -

864 -

865 \value CE_MenuBarItem A menu item in a QMenuBar. -

866 \value CE_MenuBarEmptyArea The empty area of a QMenuBar. -

867 -

868 \value CE_MenuItem A menu item in a QMenu. -

869 \value CE_MenuScroller Scrolling areas in a QMenu when the -

870 style supports scrolling. -

871 \value CE_MenuTearoff A menu item representing the tear off section of -

872 a QMenu. -

873 \value CE_MenuEmptyArea The area in a menu without menu items. -

874 \value CE_MenuHMargin The horizontal extra space on the left/right of a menu. -

875 \value CE_MenuVMargin The vertical extra space on the top/bottom of a menu. -

876 -

877 \value CE_ToolBoxTab The toolbox's tab and label within a QToolBox. -

878 \value CE_SizeGrip Window resize handle; see also QSizeGrip. -

879 -

880 \value CE_Header A header. -

881 \value CE_HeaderSection A header section. -

882 \value CE_HeaderLabel The header's label. -

883 -

884 \value CE_ScrollBarAddLine Scroll bar line increase indicator. -

885 (i.e., scroll down); see also QScrollBar. -

886 \value CE_ScrollBarSubLine Scroll bar line decrease indicator (i.e., scroll up). -

887 \value CE_ScrollBarAddPage Scolllbar page increase indicator (i.e., page down). -

888 \value CE_ScrollBarSubPage Scroll bar page decrease indicator (i.e., page up). -

889 \value CE_ScrollBarSlider Scroll bar slider. -

890 \value CE_ScrollBarFirst Scroll bar first line indicator (i.e., home). -

891 \value CE_ScrollBarLast Scroll bar last line indicator (i.e., end). -

892 -

893 \value CE_RubberBand Rubber band used in for example an icon view. -

894 -

895 \value CE_FocusFrame Focus frame that is style controlled. -

896 -

897 \value CE_ItemViewItem An item inside an item view. -

898 -

899 \value CE_CustomBase Base value for custom control elements; -

900 custom values must be greater than this value. -

901 \value CE_ComboBoxLabel The label of a non-editable QComboBox. -

902 \value CE_ToolBar A toolbar like QToolBar. -

903 \value CE_ToolBoxTabShape The toolbox's tab shape. -

904 \value CE_ToolBoxTabLabel The toolbox's tab label. -

905 \value CE_HeaderEmptyArea The area of a header view where there are no header sections. -

906 -

907 \value CE_ShapedFrame The frame with the shape specified in the QStyleOptionFrame; see QFrame. -

908 -

909 \omitvalue CE_ColumnViewGrip -

910 -

911 \sa drawControl() -

912 */ -

913 -

914 /*! -

915 \fn void QStyle::drawControl(ControlElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const -

916 -

917 Draws the given \a element with the provided \a painter with the -

918 style options specified by \a option. -

919 -

920 The \a widget argument is optional and can be used as aid in -

921 drawing the control. The \a option parameter is a pointer to a -

922 QStyleOption object that can be cast to the correct subclass -

923 using the qstyleoption_cast() function. -

924 -

925 The table below is listing the control elements and their -

926 associated style option subclass. The style options contain all -

927 the parameters required to draw the controls, including -

928 QStyleOption::state which holds the style flags that are used when -

929 drawing. The table also describes which flags that are set when -

930 casting the given option to the appropriate subclass. -

931 -

932 Note that if a control element is not listed here, it is because -

933 it uses a plain QStyleOption object. -

934 -

935 \table -

936 \header \li Control Element \li QStyleOption Subclass \li Style Flag \li Remark -

937 \row \li{1,5} \l CE_MenuItem, \l CE_MenuBarItem -

938 \li{1,5} \l QStyleOptionMenuItem -

939 \li \l State_Selected \li The menu item is currently selected item. -

940 \row \li \l State_Enabled \li The item is enabled. -

941 \row \li \l State_DownArrow \li Indicates that a scroll down arrow should be drawn. -

942 \row \li \l State_UpArrow \li Indicates that a scroll up arrow should be drawn -

943 \row \li \l State_HasFocus \li Set if the menu bar has input focus. -

944 -

945 \row \li{1,5} \l CE_PushButton, \l CE_PushButtonBevel, \l CE_PushButtonLabel -

946 \li{1,5} \l QStyleOptionButton -

947 \li \l State_Enabled \li Set if the button is enabled. -

948 \row \li \l State_HasFocus \li Set if the button has input focus. -

949 \row \li \l State_Raised \li Set if the button is not down, not on and not flat. -

950 \row \li \l State_On \li Set if the button is a toggle button and is toggled on. -

951 \row \li \l State_Sunken -

952 \li Set if the button is down (i.e., the mouse button or the -

953 space bar is pressed on the button). -

954 -

955 \row \li{1,6} \l CE_RadioButton, \l CE_RadioButtonLabel, -

956 \l CE_CheckBox, \l CE_CheckBoxLabel -

957 \li{1,6} \l QStyleOptionButton -

958 \li \l State_Enabled \li Set if the button is enabled. -

959 \row \li \l State_HasFocus \li Set if the button has input focus. -

960 \row \li \l State_On \li Set if the button is checked. -

961 \row \li \l State_Off \li Set if the button is not checked. -

962 \row \li \l State_NoChange \li Set if the button is in the NoChange state. -

963 \row \li \l State_Sunken -

964 \li Set if the button is down (i.e., the mouse button or -

965 the space bar is pressed on the button). -

966 -

967 \row \li{1,2} \l CE_ProgressBarContents, \l CE_ProgressBarLabel, -

968 \l CE_ProgressBarGroove -

969 \li{1,2} \l QStyleOptionProgressBar -

970 \li \l State_Enabled \li Set if the progress bar is enabled. -

971 \row \li \l State_HasFocus \li Set if the progress bar has input focus. -

972 -

973 \row \li \l CE_Header, \l CE_HeaderSection, \l CE_HeaderLabel \li \l QStyleOptionHeader \li \li -

974 -

975 \row \li{1,3} \l CE_TabBarTab, CE_TabBarTabShape, CE_TabBarTabLabel -

976 \li{1,3} \l QStyleOptionTab -

977 \li \l State_Enabled \li Set if the tab bar is enabled. -

978 \row \li \l State_Selected \li The tab bar is the currently selected tab bar. -

979 \row \li \l State_HasFocus \li Set if the tab bar tab has input focus. -

980 -

981 \row \li{1,7} \l CE_ToolButtonLabel -

982 \li{1,7} \l QStyleOptionToolButton -

983 \li \l State_Enabled \li Set if the tool button is enabled. -

984 \row \li \l State_HasFocus \li Set if the tool button has input focus. -

985 \row \li \l State_Sunken -

986 \li Set if the tool button is down (i.e., a mouse button or -

987 the space bar is pressed). -

988 \row \li \l State_On \li Set if the tool button is a toggle button and is toggled on. -

989 \row \li \l State_AutoRaise \li Set if the tool button has auto-raise enabled. -

990 \row \li \l State_MouseOver \li Set if the mouse pointer is over the tool button. -

991 \row \li \l State_Raised \li Set if the button is not down and is not on. -

992 -

993 \row \li \l CE_ToolBoxTab \li \l QStyleOptionToolBox -

994 \li \l State_Selected \li The tab is the currently selected tab. -

995 \row \li{1,3} \l CE_HeaderSection \li{1,3} \l QStyleOptionHeader -

996 \li \l State_Sunken \li Indicates that the section is pressed. -

997 \row \li \l State_UpArrow \li Indicates that the sort indicator should be pointing up. -

998 \row \li \l State_DownArrow \li Indicates that the sort indicator should be pointing down. -

999 \endtable -

1000 -

1001 \sa drawPrimitive(), drawComplexControl() -

1002 */ -

1003 -

1004 /*! -

1005 \enum QStyle::SubElement -

1006 -

1007 This enum represents a sub-area of a widget. Style implementations -

1008 use these areas to draw the different parts of a widget. -

1009 -

1010 \value SE_PushButtonContents Area containing the label (icon -

1011 with text or pixmap). -

1012 \value SE_PushButtonFocusRect Area for the focus rect (usually -

1013 larger than the contents rect). -

1014 \value SE_PushButtonLayoutItem Area that counts for the parent layout. -

1015 -

1016 \value SE_CheckBoxIndicator Area for the state indicator (e.g., check mark). -

1017 \value SE_CheckBoxContents Area for the label (text or pixmap). -

1018 \value SE_CheckBoxFocusRect Area for the focus indicator. -

1019 \value SE_CheckBoxClickRect Clickable area, defaults to SE_CheckBoxFocusRect. -

1020 \value SE_CheckBoxLayoutItem Area that counts for the parent layout. -

1021 -

1022 \value SE_DateTimeEditLayoutItem Area that counts for the parent layout. -

1023 -

1024 \value SE_RadioButtonIndicator Area for the state indicator. -

1025 \value SE_RadioButtonContents Area for the label. -

1026 \value SE_RadioButtonFocusRect Area for the focus indicator. -

1027 \value SE_RadioButtonClickRect Clickable area, defaults to SE_RadioButtonFocusRect. -

1028 \value SE_RadioButtonLayoutItem Area that counts for the parent layout. -

1029 -

1030 \value SE_ComboBoxFocusRect Area for the focus indicator. -

1031 -

1032 \value SE_SliderFocusRect Area for the focus indicator. -

1033 \value SE_SliderLayoutItem Area that counts for the parent layout. -

1034 -

1035 \value SE_SpinBoxLayoutItem Area that counts for the parent layout. -

1036 -

1037 \value SE_ProgressBarGroove Area for the groove. -

1038 \value SE_ProgressBarContents Area for the progress indicator. -

1039 \value SE_ProgressBarLabel Area for the text label. -

1040 \value SE_ProgressBarLayoutItem Area that counts for the parent layout. -

1041 -

1042 \omitvalue SE_ViewItemCheckIndicator -

1043 -

1044 \value SE_FrameContents Area for a frame's contents. -

1045 \value SE_ShapedFrameContents Area for a frame's contents using the shape in QStyleOptionFrame; see QFrame -

1046 \value SE_FrameLayoutItem Area that counts for the parent layout. -

1047 -

1048 \value SE_HeaderArrow Area for the sort indicator for a header. -

1049 \value SE_HeaderLabel Area for the label in a header. -

1050 -

1051 \value SE_LabelLayoutItem Area that counts for the parent layout. -

1052 -

1053 \value SE_LineEditContents Area for a line edit's contents. -

1054 -

1055 \value SE_TabWidgetLeftCorner Area for the left corner widget in a tab widget. -

1056 \value SE_TabWidgetRightCorner Area for the right corner widget in a tab widget. -

1057 \value SE_TabWidgetTabBar Area for the tab bar widget in a tab widget. -

1058 \value SE_TabWidgetTabContents Area for the contents of the tab widget. -

1059 \value SE_TabWidgetTabPane Area for the pane of a tab widget. -

1060 \value SE_TabWidgetLayoutItem Area that counts for the parent layout. -

1061 -

1062 \value SE_ToolBoxTabContents Area for a toolbox tab's icon and label. -

1063 -

1064 \value SE_ToolButtonLayoutItem Area that counts for the parent layout. -

1065 -

1066 \value SE_ItemViewItemCheckIndicator Area for a view item's check mark. -

1067 -

1068 \value SE_TabBarTearIndicator Deprecated. Use SE_TabBarTearIndicatorLeft instead. -

1069 \value SE_TabBarTearIndicatorLeft Area for the tear indicator on the left side of a tab bar with scroll arrows. -

1070 \value SE_TabBarTearIndicatorRight Area for the tear indicator on the right side of a tab bar with scroll arrows. -

1071 -

1072 \value SE_TabBarScrollLeftButton Area for the scroll left button on a tab bar with scroll buttons. -

1073 \value SE_TabBarScrollRightButton Area for the scroll right button on a tab bar with scroll buttons. -

1074 -

1075 \value SE_TreeViewDisclosureItem Area for the actual disclosure item in a tree branch. -

1076 -

1077 \value SE_DialogButtonBoxLayoutItem Area that counts for the parent layout. -

1078 -

1079 \value SE_GroupBoxLayoutItem Area that counts for the parent layout. -

1080 -

1081 \value SE_CustomBase Base value for custom sub-elements. -

1082 Custom values must be greater than this value. -

1083 -

1084 \value SE_DockWidgetFloatButton The float button of a dock -

1085 widget. -

1086 \value SE_DockWidgetTitleBarText The text bounds of the dock -

1087 widgets title. -

1088 \value SE_DockWidgetCloseButton The close button of a dock -

1089 widget. -

1090 \value SE_DockWidgetIcon The icon of a dock widget. -

1091 \value SE_ComboBoxLayoutItem Area that counts for the parent layout. -

1092 -

1093 -

1094 \value SE_ItemViewItemDecoration Area for a view item's decoration (icon). -

1095 \value SE_ItemViewItemText Area for a view item's text. -

1096 \value SE_ItemViewItemFocusRect Area for a view item's focus rect. -

1097 -

1098 \value SE_TabBarTabLeftButton Area for a widget on the left side of a tab in a tab bar. -

1099 \value SE_TabBarTabRightButton Area for a widget on the right side of a tab in a tab bar. -

1100 \value SE_TabBarTabText Area for the text on a tab in a tab bar. -

1101 -

1102 \value SE_ToolBarHandle Area for the handle of a tool bar. -

1103 -

1104 \sa subElementRect() -

1105 */ -

1106 -

1107 /*! -

1108 \fn QRect QStyle::subElementRect(SubElement element, const QStyleOption *option, const QWidget *widget) const -

1109 -

1110 Returns the sub-area for the given \a element as described in the -

1111 provided style \a option. The returned rectangle is defined in -

1112 screen coordinates. -

1113 -

1114 The \a widget argument is optional and can be used to aid -

1115 determining the area. The QStyleOption object can be cast to the -

1116 appropriate type using the qstyleoption_cast() function. See the -

1117 table below for the appropriate \a option casts: -

1118 -

1119 \table -

1120 \header \li Sub Element \li QStyleOption Subclass -

1121 \row \li \l SE_PushButtonContents \li \l QStyleOptionButton -

1122 \row \li \l SE_PushButtonFocusRect \li \l QStyleOptionButton -

1123 \row \li \l SE_CheckBoxIndicator \li \l QStyleOptionButton -

1124 \row \li \l SE_CheckBoxContents \li \l QStyleOptionButton -

1125 \row \li \l SE_CheckBoxFocusRect \li \l QStyleOptionButton -

1126 \row \li \l SE_RadioButtonIndicator \li \l QStyleOptionButton -

1127 \row \li \l SE_RadioButtonContents \li \l QStyleOptionButton -

1128 \row \li \l SE_RadioButtonFocusRect \li \l QStyleOptionButton -

1129 \row \li \l SE_ComboBoxFocusRect \li \l QStyleOptionComboBox -

1130 \row \li \l SE_ProgressBarGroove \li \l QStyleOptionProgressBar -

1131 \row \li \l SE_ProgressBarContents \li \l QStyleOptionProgressBar -

1132 \row \li \l SE_ProgressBarLabel \li \l QStyleOptionProgressBar -

1133 \endtable -

1134 */ -

1135 -

1136 /*! -

1137 \enum QStyle::ComplexControl -

1138 -

1139 This enum describes the available complex controls. Complex -

1140 controls have different behavior depending upon where the user -

1141 clicks on them or which keys are pressed. -

1142 -

1143 \value CC_SpinBox A spinbox, like QSpinBox. -

1144 \value CC_ComboBox A combobox, like QComboBox. -

1145 \value CC_ScrollBar A scroll bar, like QScrollBar. -

1146 \value CC_Slider A slider, like QSlider. -

1147 \value CC_ToolButton A tool button, like QToolButton. -

1148 \value CC_TitleBar A Title bar, like those used in QMdiSubWindow. -

1149 \value CC_GroupBox A group box, like QGroupBox. -

1150 \value CC_Dial A dial, like QDial. -

1151 \value CC_MdiControls The minimize, close, and normal -

1152 button in the menu bar for a -

1153 maximized MDI subwindow. -

1154 -

1155 \value CC_CustomBase Base value for custom complex controls. Custom -

1156 values must be greater than this value. -

1157 -

1158 \sa SubControl, drawComplexControl() -

1159 */ -

1160 -

1161 /*! -

1162 \enum QStyle::SubControl -

1163 -

1164 This enum describes the available sub controls. A subcontrol is a -

1165 control element within a complex control (ComplexControl). -

1166 -

1167 \value SC_None Special value that matches no other sub control. -

1168 -

1169 \value SC_ScrollBarAddLine Scroll bar add line (i.e., down/right -

1170 arrow); see also QScrollBar. -

1171 \value SC_ScrollBarSubLine Scroll bar sub line (i.e., up/left arrow). -

1172 \value SC_ScrollBarAddPage Scroll bar add page (i.e., page down). -

1173 \value SC_ScrollBarSubPage Scroll bar sub page (i.e., page up). -

1174 \value SC_ScrollBarFirst Scroll bar first line (i.e., home). -

1175 \value SC_ScrollBarLast Scroll bar last line (i.e., end). -

1176 \value SC_ScrollBarSlider Scroll bar slider handle. -

1177 \value SC_ScrollBarGroove Special sub-control which contains the -

1178 area in which the slider handle may move. -

1179 -

1180 \value SC_SpinBoxUp Spin widget up/increase; see also QSpinBox. -

1181 \value SC_SpinBoxDown Spin widget down/decrease. -

1182 \value SC_SpinBoxFrame Spin widget frame. -

1183 \value SC_SpinBoxEditField Spin widget edit field. -

1184 -

1185 \value SC_ComboBoxEditField Combobox edit field; see also QComboBox. -

1186 \value SC_ComboBoxArrow Combobox arrow button. -

1187 \value SC_ComboBoxFrame Combobox frame. -

1188 \value SC_ComboBoxListBoxPopup The reference rectangle for the combobox popup. -

1189 Used to calculate the position of the popup. -

1190 -

1191 \value SC_SliderGroove Special sub-control which contains the area -

1192 in which the slider handle may move. -

1193 \value SC_SliderHandle Slider handle. -

1194 \value SC_SliderTickmarks Slider tickmarks. -

1195 -

1196 \value SC_ToolButton Tool button (see also QToolButton). -

1197 \value SC_ToolButtonMenu Sub-control for opening a popup menu in a -

1198 tool button. -

1199 -

1200 \value SC_TitleBarSysMenu System menu button (i.e., restore, close, etc.). -

1201 \value SC_TitleBarMinButton Minimize button. -

1202 \value SC_TitleBarMaxButton Maximize button. -

1203 \value SC_TitleBarCloseButton Close button. -

1204 \value SC_TitleBarLabel Window title label. -

1205 \value SC_TitleBarNormalButton Normal (restore) button. -

1206 \value SC_TitleBarShadeButton Shade button. -

1207 \value SC_TitleBarUnshadeButton Unshade button. -

1208 \value SC_TitleBarContextHelpButton Context Help button. -

1209 -

1210 \value SC_DialHandle The handle of the dial (i.e. what you use to control the dial). -

1211 \value SC_DialGroove The groove for the dial. -

1212 \value SC_DialTickmarks The tickmarks for the dial. -

1213 -

1214 \value SC_GroupBoxFrame The frame of a group box. -

1215 \value SC_GroupBoxLabel The title of a group box. -

1216 \value SC_GroupBoxCheckBox The optional check box of a group box. -

1217 \value SC_GroupBoxContents The group box contents. -

1218 -

1219 \value SC_MdiNormalButton The normal button for a MDI -

1220 subwindow in the menu bar. -

1221 \value SC_MdiMinButton The minimize button for a MDI -

1222 subwindow in the menu bar. -

1223 \value SC_MdiCloseButton The close button for a MDI subwindow -

1224 in the menu bar. -

1225 -

1226 \value SC_All Special value that matches all sub-controls. -

1227 \omitvalue SC_CustomBase -

1228 -

1229 \sa ComplexControl -

1230 */ -

1231 -

1232 /*! -

1233 \fn void QStyle::drawComplexControl(ComplexControl control, const QStyleOptionComplex *option, QPainter *painter, const QWidget *widget) const -

1234 -

1235 Draws the given \a control using the provided \a painter with the -

1236 style options specified by \a option. -

1237 -

1238 The \a widget argument is optional and can be used as aid in -

1239 drawing the control. -

1240 -

1241 The \a option parameter is a pointer to a QStyleOptionComplex -

1242 object that can be cast to the correct subclass using the -

1243 qstyleoption_cast() function. Note that the \c rect member of the -

1244 specified \a option must be in logical -

1245 coordinates. Reimplementations of this function should use -

1246 visualRect() to change the logical coordinates into screen -

1247 coordinates before calling the drawPrimitive() or drawControl() -

1248 function. -

1249 -

1250 The table below is listing the complex control elements and their -

1251 associated style option subclass. The style options contain all -

1252 the parameters required to draw the controls, including -

1253 QStyleOption::state which holds the \l {QStyle::StateFlag}{style -

1254 flags} that are used when drawing. The table also describes which -

1255 flags that are set when casting the given \a option to the -

1256 appropriate subclass. -

1257 -

1258 \table -

1259 \header \li Complex Control \li QStyleOptionComplex Subclass \li Style Flag \li Remark -

1260 \row \li{1,2} \l{CC_SpinBox} \li{1,2} \l QStyleOptionSpinBox -

1261 \li \l State_Enabled \li Set if the spin box is enabled. -

1262 \row \li \l State_HasFocus \li Set if the spin box has input focus. -

1263 -

1264 \row \li{1,2} \l {CC_ComboBox} \li{1,2} \l QStyleOptionComboBox -

1265 \li \l State_Enabled \li Set if the combobox is enabled. -

1266 \row \li \l State_HasFocus \li Set if the combobox has input focus. -

1267 -

1268 \row \li{1,2} \l {CC_ScrollBar} \li{1,2} \l QStyleOptionSlider -

1269 \li \l State_Enabled \li Set if the scroll bar is enabled. -

1270 \row \li \l State_HasFocus \li Set if the scroll bar has input focus. -

1271 -

1272 \row \li{1,2} \l {CC_Slider} \li{1,2} \l QStyleOptionSlider -

1273 \li \l State_Enabled \li Set if the slider is enabled. -

1274 \row \li \l State_HasFocus \li Set if the slider has input focus. -

1275 -

1276 \row \li{1,2} \l {CC_Dial} \li{1,2} \l QStyleOptionSlider -

1277 \li \l State_Enabled \li Set if the dial is enabled. -

1278 \row \li \l State_HasFocus \li Set if the dial has input focus. -

1279 -

1280 \row \li{1,6} \l {CC_ToolButton} \li{1,6} \l QStyleOptionToolButton -

1281 \li \l State_Enabled \li Set if the tool button is enabled. -

1282 \row \li \l State_HasFocus \li Set if the tool button has input focus. -

1283 \row \li \l State_DownArrow \li Set if the tool button is down (i.e., a mouse -

1284 button or the space bar is pressed). -

1285 \row \li \l State_On \li Set if the tool button is a toggle button -

1286 and is toggled on. -

1287 \row \li \l State_AutoRaise \li Set if the tool button has auto-raise enabled. -

1288 \row \li \l State_Raised \li Set if the button is not down, not on, and doesn't -

1289 contain the mouse when auto-raise is enabled. -

1290 -

1291 \row \li \l{CC_TitleBar} \li \l QStyleOptionTitleBar -

1292 \li \l State_Enabled \li Set if the title bar is enabled. -

1293 -

1294 \endtable -

1295 -

1296 \sa drawPrimitive(), drawControl() -

1297 */ -

1298 -

1299 -

1300 /*! -

1301 \fn QRect QStyle::subControlRect(ComplexControl control, -

1302 const QStyleOptionComplex *option, SubControl subControl, -

1303 const QWidget *widget) const = 0 -

1304 -

1305 Returns the rectangle containing the specified \a subControl of -

1306 the given complex \a control (with the style specified by \a -

1307 option). The rectangle is defined in screen coordinates. -

1308 -

1309 The \a option argument is a pointer to QStyleOptionComplex or -

1310 one of its subclasses, and can be cast to the appropriate type -

1311 using the qstyleoption_cast() function. See drawComplexControl() -

1312 for details. The \a widget is optional and can contain additional -

1313 information for the function. -

1314 -

1315 \sa drawComplexControl() -

1316 */ -

1317 -

1318 /*! -

1319 \fn QStyle::SubControl QStyle::hitTestComplexControl(ComplexControl control, -

1320 const QStyleOptionComplex *option, const QPoint &position, -

1321 const QWidget *widget) const = 0 -

1322 -

1323 Returns the sub control at the given \a position in the given -

1324 complex \a control (with the style options specified by \a -

1325 option). -

1326 -

1327 Note that the \a position is expressed in screen coordinates. -

1328 -

1329 The \a option argument is a pointer to a QStyleOptionComplex -

1330 object (or one of its subclasses). The object can be cast to the -

1331 appropriate type using the qstyleoption_cast() function. See -

1332 drawComplexControl() for details. The \a widget argument is -

1333 optional and can contain additional information for the function. -

1334 -

1335 \sa drawComplexControl(), subControlRect() -

1336 */ -

1337 -

1338 /*! -

1339 \enum QStyle::PixelMetric -

1340 -

1341 This enum describes the various available pixel metrics. A pixel -

1342 metric is a style dependent size represented by a single pixel -

1343 value. -

1344 -

1345 \value PM_ButtonMargin Amount of whitespace between push button -

1346 labels and the frame. -

1347 \value PM_DockWidgetTitleBarButtonMargin Amount of whitespace between dock widget's -

1348 title bar button labels and the frame. -

1349 \value PM_ButtonDefaultIndicator Width of the default-button indicator frame. -

1350 \value PM_MenuButtonIndicator Width of the menu button indicator -

1351 proportional to the widget height. -

1352 \value PM_ButtonShiftHorizontal Horizontal contents shift of a -

1353 button when the button is down. -

1354 \value PM_ButtonShiftVertical Vertical contents shift of a button when the -

1355 button is down. -

1356 -

1357 \value PM_DefaultFrameWidth Default frame width (usually 2). -

1358 \value PM_SpinBoxFrameWidth Frame width of a spin box, defaults to PM_DefaultFrameWidth. -

1359 \value PM_ComboBoxFrameWidth Frame width of a combo box, defaults to PM_DefaultFrameWidth. -

1360 -

1361 \value PM_MDIFrameWidth Obsolete. Use PM_MdiSubWindowFrameWidth instead. -

1362 \value PM_MdiSubWindowFrameWidth Frame width of an MDI window. -

1363 \value PM_MDIMinimizedWidth Obsolete. Use PM_MdiSubWindowMinimizedWidth instead. -

1364 \value PM_MdiSubWindowMinimizedWidth Width of a minimized MDI window. -

1365 -

1366 \value PM_LayoutLeftMargin Default \l{QLayout::setContentsMargins()}{left margin} for a -

1367 QLayout. -

1368 \value PM_LayoutTopMargin Default \l{QLayout::setContentsMargins()}{top margin} for a QLayout. -

1369 \value PM_LayoutRightMargin Default \l{QLayout::setContentsMargins()}{right margin} for a -

1370 QLayout. -

1371 \value PM_LayoutBottomMargin Default \l{QLayout::setContentsMargins()}{bottom margin} for a -

1372 QLayout. -

1373 \value PM_LayoutHorizontalSpacing Default \l{QLayout::spacing}{horizontal spacing} for a -

1374 QLayout. -

1375 \value PM_LayoutVerticalSpacing Default \l{QLayout::spacing}{vertical spacing} for a QLayout. -

1376 -

1377 \value PM_MaximumDragDistance The maximum allowed distance between -

1378 the mouse and a scrollbar when dragging. Exceeding the specified -

1379 distance will cause the slider to jump back to the original -

1380 position; a value of -1 disables this behavior. -

1381 -

1382 \value PM_ScrollBarExtent Width of a vertical scroll bar and the -

1383 height of a horizontal scroll bar. -

1384 \value PM_ScrollBarSliderMin The minimum height of a vertical -

1385 scroll bar's slider and the minimum width of a horizontal -

1386 scroll bar's slider. -

1387 -

1388 \value PM_SliderThickness Total slider thickness. -

1389 \value PM_SliderControlThickness Thickness of the slider handle. -

1390 \value PM_SliderLength Length of the slider. -

1391 \value PM_SliderTickmarkOffset The offset between the tickmarks -

1392 and the slider. -

1393 \value PM_SliderSpaceAvailable The available space for the slider to move. -

1394 -

1395 \value PM_DockWidgetSeparatorExtent Width of a separator in a -

1396 horizontal dock window and the height of a separator in a -

1397 vertical dock window. -

1398 \value PM_DockWidgetHandleExtent Width of the handle in a -

1399 horizontal dock window and the height of the handle in a -

1400 vertical dock window. -

1401 \value PM_DockWidgetFrameWidth Frame width of a dock window. -

1402 \value PM_DockWidgetTitleMargin Margin of the dock window title. -

1403 -

1404 \value PM_MenuBarPanelWidth Frame width of a menu bar, defaults to PM_DefaultFrameWidth. -

1405 \value PM_MenuBarItemSpacing Spacing between menu bar items. -

1406 \value PM_MenuBarHMargin Spacing between menu bar items and left/right of bar. -

1407 \value PM_MenuBarVMargin Spacing between menu bar items and top/bottom of bar. -

1408 -

1409 \value PM_ToolBarFrameWidth Width of the frame around toolbars. -

1410 \value PM_ToolBarHandleExtent Width of a toolbar handle in a -

1411 horizontal toolbar and the height of the handle in a vertical toolbar. -

1412 \value PM_ToolBarItemMargin Spacing between the toolbar frame and the items. -

1413 \value PM_ToolBarItemSpacing Spacing between toolbar items. -

1414 \value PM_ToolBarSeparatorExtent Width of a toolbar separator in a -

1415 horizontal toolbar and the height of a separator in a vertical toolbar. -

1416 \value PM_ToolBarExtensionExtent Width of a toolbar extension -

1417 button in a horizontal toolbar and the height of the button in a -

1418 vertical toolbar. -

1419 -

1420 \value PM_TabBarTabOverlap Number of pixels the tabs should overlap. -

1421 (Currently only used in styles, not inside of QTabBar) -

1422 \value PM_TabBarTabHSpace Extra space added to the tab width. -

1423 \value PM_TabBarTabVSpace Extra space added to the tab height. -

1424 \value PM_TabBarBaseHeight Height of the area between the tab bar -

1425 and the tab pages. -

1426 \value PM_TabBarBaseOverlap Number of pixels the tab bar overlaps -

1427 the tab bar base. -

1428 \value PM_TabBarScrollButtonWidth -

1429 \value PM_TabBarTabShiftHorizontal Horizontal pixel shift when a -

1430 tab is selected. -

1431 \value PM_TabBarTabShiftVertical Vertical pixel shift when a -

1432 tab is selected. -

1433 -

1434 \value PM_ProgressBarChunkWidth Width of a chunk in a progress bar indicator. -

1435 -

1436 \value PM_SplitterWidth Width of a splitter. -

1437 -

1438 \value PM_TitleBarHeight Height of the title bar. -

1439 -

1440 \value PM_IndicatorWidth Width of a check box indicator. -

1441 \value PM_IndicatorHeight Height of a checkbox indicator. -

1442 \value PM_ExclusiveIndicatorWidth Width of a radio button indicator. -

1443 \value PM_ExclusiveIndicatorHeight Height of a radio button indicator. -

1444 -

1445 \value PM_MenuPanelWidth Border width (applied on all sides) for a QMenu. -

1446 \value PM_MenuHMargin Additional border (used on left and right) for a QMenu. -

1447 \value PM_MenuVMargin Additional border (used for bottom and top) for a QMenu. -

1448 \value PM_MenuScrollerHeight Height of the scroller area in a QMenu. -

1449 \value PM_MenuTearoffHeight Height of a tear off area in a QMenu. -

1450 \value PM_MenuDesktopFrameWidth The frame width for the menu on the desktop. -

1451 -

1452 \omitvalue PM_DialogButtonsSeparator -

1453 \omitvalue PM_DialogButtonsButtonWidth -

1454 \omitvalue PM_DialogButtonsButtonHeight -

1455 -

1456 \value PM_HeaderMarkSize The size of the sort indicator in a header. -

1457 \value PM_HeaderGripMargin The size of the resize grip in a header. -

1458 \value PM_HeaderMargin The size of the margin between the sort indicator and the text. -

1459 \value PM_SpinBoxSliderHeight The height of the optional spin box slider. -

1460 -

1461 \value PM_ToolBarIconSize Default tool bar icon size -

1462 \value PM_SmallIconSize Default small icon size -

1463 \value PM_LargeIconSize Default large icon size -

1464 -

1465 \value PM_FocusFrameHMargin Horizontal margin that the focus frame will outset the widget by. -

1466 \value PM_FocusFrameVMargin Vertical margin that the focus frame will outset the widget by. -

1467 \value PM_IconViewIconSize The default size for icons in an icon view. -

1468 \value PM_ListViewIconSize The default size for icons in a list view. -

1469 -

1470 \value PM_ToolTipLabelFrameWidth The frame width for a tool tip label. -

1471 \value PM_CheckBoxLabelSpacing The spacing between a check box indicator and its label. -

1472 \value PM_RadioButtonLabelSpacing The spacing between a radio button indicator and its label. -

1473 \value PM_TabBarIconSize The default icon size for a tab bar. -

1474 \value PM_SizeGripSize The size of a size grip. -

1475 \value PM_MessageBoxIconSize The size of the standard icons in a message box -

1476 \value PM_ButtonIconSize The default size of button icons -

1477 \value PM_TextCursorWidth The width of the cursor in a line edit or text edit -

1478 \value PM_TabBar_ScrollButtonOverlap The distance between the left and right buttons in a tab bar. -

1479 -

1480 \value PM_TabCloseIndicatorWidth The default width of a close button on a tab in a tab bar. -

1481 \value PM_TabCloseIndicatorHeight The default height of a close button on a tab in a tab bar. -

1482 -

1483 \value PM_ScrollView_ScrollBarSpacing Distance between frame and scrollbar -

1484 with SH_ScrollView_FrameOnlyAroundContents set. -

1485 \value PM_ScrollView_ScrollBarOverlap Overlap between scroll bars and scroll content -

1486 -

1487 \value PM_SubMenuOverlap The horizontal overlap between a submenu and its parent. -

1488 -

1489 \value PM_TreeViewIndentation The indentation of items in a tree view. -

1490 This enum value has been introduced in Qt 5.4. -

1491 -

1492 \value PM_HeaderDefaultSectionSizeHorizontal The default size of sections -

1493 in a horizontal header. This enum value has been introduced in Qt 5.5. -

1494 \value PM_HeaderDefaultSectionSizeVertical The default size of sections -

1495 in a vertical header. This enum value has been introduced in Qt 5.5. -

1496 -

1497 \value PM_CustomBase Base value for custom pixel metrics. Custom -

1498 values must be greater than this value. -

1499 -

1500 The following values are obsolete: -

1501 -

1502 \value PM_DefaultTopLevelMargin Use PM_LayoutLeftMargin, -

1503 PM_LayoutTopMargin, -

1504 PM_LayoutRightMargin, and -

1505 PM_LayoutBottomMargin instead. -

1506 \value PM_DefaultChildMargin Use PM_LayoutLeftMargin, -

1507 PM_LayoutTopMargin, -

1508 PM_LayoutRightMargin, and -

1509 PM_LayoutBottomMargin instead. -

1510 \value PM_DefaultLayoutSpacing Use PM_LayoutHorizontalSpacing -

1511 and PM_LayoutVerticalSpacing -

1512 instead. -

1513 -

1514 -

1515 \sa pixelMetric() -

1516 */ -

1517 -

1518 /*! -

1519 \fn int QStyle::pixelMetric(PixelMetric metric, const QStyleOption *option, const QWidget *widget) const; -

1520 -

1521 Returns the value of the given pixel \a metric. -

1522 -

1523 The specified \a option and \a widget can be used for calculating -

1524 the metric. In general, the \a widget argument is not used. The \a -

1525 option can be cast to the appropriate type using the -

1526 qstyleoption_cast() function. Note that the \a option may be zero -

1527 even for PixelMetrics that can make use of it. See the table below -

1528 for the appropriate \a option casts: -

1529 -

1530 \table -

1531 \header \li Pixel Metric \li QStyleOption Subclass -

1532 \row \li \l PM_SliderControlThickness \li \l QStyleOptionSlider -

1533 \row \li \l PM_SliderLength \li \l QStyleOptionSlider -

1534 \row \li \l PM_SliderTickmarkOffset \li \l QStyleOptionSlider -

1535 \row \li \l PM_SliderSpaceAvailable \li \l QStyleOptionSlider -

1536 \row \li \l PM_ScrollBarExtent \li \l QStyleOptionSlider -

1537 \row \li \l PM_TabBarTabOverlap \li \l QStyleOptionTab -

1538 \row \li \l PM_TabBarTabHSpace \li \l QStyleOptionTab -

1539 \row \li \l PM_TabBarTabVSpace \li \l QStyleOptionTab -

1540 \row \li \l PM_TabBarBaseHeight \li \l QStyleOptionTab -

1541 \row \li \l PM_TabBarBaseOverlap \li \l QStyleOptionTab -

1542 \endtable -

1543 -

1544 Some pixel metrics are called from widgets and some are only called -

1545 internally by the style. If the metric is not called by a widget, it is the -

1546 discretion of the style author to make use of it. For some styles, this -

1547 may not be appropriate. -

1548 */ -

1549 -

1550 /*! -

1551 \enum QStyle::ContentsType -

1552 -

1553 This enum describes the available contents types. These are used to -

1554 calculate sizes for the contents of various widgets. -

1555 -

1556 \value CT_CheckBox A check box, like QCheckBox. -

1557 \value CT_ComboBox A combo box, like QComboBox. -

1558 \omitvalue CT_DialogButtons -

1559 \value CT_HeaderSection A header section, like QHeader. -

1560 \value CT_LineEdit A line edit, like QLineEdit. -

1561 \value CT_Menu A menu, like QMenu. -

1562 \value CT_MenuBar A menu bar, like QMenuBar. -

1563 \value CT_MenuBarItem A menu bar item, like the buttons in a QMenuBar. -

1564 \value CT_MenuItem A menu item, like QMenuItem. -

1565 \value CT_ProgressBar A progress bar, like QProgressBar. -

1566 \value CT_PushButton A push button, like QPushButton. -

1567 \value CT_RadioButton A radio button, like QRadioButton. -

1568 \value CT_SizeGrip A size grip, like QSizeGrip. -

1569 \value CT_Slider A slider, like QSlider. -

1570 \value CT_ScrollBar A scroll bar, like QScrollBar. -

1571 \value CT_SpinBox A spin box, like QSpinBox. -

1572 \value CT_Splitter A splitter, like QSplitter. -

1573 \value CT_TabBarTab A tab on a tab bar, like QTabBar. -

1574 \value CT_TabWidget A tab widget, like QTabWidget. -

1575 \value CT_ToolButton A tool button, like QToolButton. -

1576 \value CT_GroupBox A group box, like QGroupBox. -

1577 \value CT_ItemViewItem An item inside an item view. -

1578 -

1579 \value CT_CustomBase Base value for custom contents types. -

1580 Custom values must be greater than this value. -

1581 -

1582 \value CT_MdiControls The minimize, normal, and close button -

1583 in the menu bar for a maximized MDI -

1584 subwindow. -

1585 -

1586 \sa sizeFromContents() -

1587 */ -

1588 -

1589 /*! -

1590 \fn QSize QStyle::sizeFromContents(ContentsType type, const QStyleOption *option, \ -

1591 const QSize &contentsSize, const QWidget *widget) const -

1592 -

1593 Returns the size of the element described by the specified -

1594 \a option and \a type, based on the provided \a contentsSize. -

1595 -

1596 The \a option argument is a pointer to a QStyleOption or one of -

1597 its subclasses. The \a option can be cast to the appropriate type -

1598 using the qstyleoption_cast() function. The \a widget is an -

1599 optional argument and can contain extra information used for -

1600 calculating the size. -

1601 -

1602 See the table below for the appropriate \a option casts: -

1603 -

1604 \table -

1605 \header \li Contents Type \li QStyleOption Subclass -

1606 \row \li \l CT_CheckBox \li \l QStyleOptionButton -

1607 \row \li \l CT_ComboBox \li \l QStyleOptionComboBox -

1608 \row \li \l CT_GroupBox \li \l QStyleOptionGroupBox -

1609 \row \li \l CT_HeaderSection \li \l QStyleOptionHeader -

1610 \row \li \l CT_ItemViewItem \li \l QStyleOptionViewItem -

1611 \row \li \l CT_LineEdit \li \l QStyleOptionFrame -

1612 \row \li \l CT_MdiControls \li \l QStyleOptionComplex -

1613 \row \li \l CT_Menu \li \l QStyleOption -

1614 \row \li \l CT_MenuItem \li \l QStyleOptionMenuItem -

1615 \row \li \l CT_MenuBar \li \l QStyleOptionMenuItem -

1616 \row \li \l CT_MenuBarItem \li \l QStyleOptionMenuItem -

1617 \row \li \l CT_ProgressBar \li \l QStyleOptionProgressBar -

1618 \row \li \l CT_PushButton \li \l QStyleOptionButton -

1619 \row \li \l CT_RadioButton \li \l QStyleOptionButton -

1620 \row \li \l CT_ScrollBar \li \l QStyleOptionSlider -

1621 \row \li \l CT_SizeGrip \li \l QStyleOption -

1622 \row \li \l CT_Slider \li \l QStyleOptionSlider -

1623 \row \li \l CT_SpinBox \li \l QStyleOptionSpinBox -

1624 \row \li \l CT_Splitter \li \l QStyleOption -

1625 \row \li \l CT_TabBarTab \li \l QStyleOptionTab -

1626 \row \li \l CT_TabWidget \li \l QStyleOptionTabWidgetFrame -

1627 \row \li \l CT_ToolButton \li \l QStyleOptionToolButton -

1628 \endtable -

1629 -

1630 \sa ContentsType, QStyleOption -

1631 */ -

1632 -

1633 /*! -

1634 \enum QStyle::RequestSoftwareInputPanel -

1635 -

1636 This enum describes under what circumstances a software input panel will be -

1637 requested by input capable widgets. -

1638 -

1639 \value RSIP_OnMouseClickAndAlreadyFocused Requests an input panel if the user -

1640 clicks on the widget, but only if it is already focused. -

1641 \value RSIP_OnMouseClick Requests an input panel if the user clicks on the -

1642 widget. -

1643 -

1644 \sa QInputMethod -

1645 */ -

1646 -

1647 /*! -

1648 \enum QStyle::StyleHint -

1649 -

1650 This enum describes the available style hints. A style hint is a general look -

1651 and/or feel hint. -

1652 -

1653 \value SH_EtchDisabledText Disabled text is "etched" as it is on Windows. -

1654 -

1655 \value SH_DitherDisabledText Disabled text is dithered as it is on Motif. -

1656 -

1657 \value SH_ScrollBar_ContextMenu Whether or not a scroll bar has a context menu. -

1658 -

1659 \value SH_ScrollBar_MiddleClickAbsolutePosition A boolean value. -

1660 If true, middle clicking on a scroll bar causes the slider to -

1661 jump to that position. If false, middle clicking is -

1662 ignored. -

1663 -

1664 \value SH_ScrollBar_LeftClickAbsolutePosition A boolean value. -

1665 If true, left clicking on a scroll bar causes the slider to -

1666 jump to that position. If false, left clicking will -

1667 behave as appropriate for each control. -

1668 -

1669 \value SH_ScrollBar_ScrollWhenPointerLeavesControl A boolean -

1670 value. If true, when clicking a scroll bar SubControl, holding -

1671 the mouse button down and moving the pointer outside the -

1672 SubControl, the scroll bar continues to scroll. If false, the -

1673 scollbar stops scrolling when the pointer leaves the -

1674 SubControl. -

1675 -

1676 \value SH_ScrollBar_RollBetweenButtons A boolean value. -

1677 If true, when clicking a scroll bar button (SC_ScrollBarAddLine or -

1678 SC_ScrollBarSubLine) and dragging over to the opposite button (rolling) -

1679 will press the new button and release the old one. When it is false, the -

1680 original button is released and nothing happens (like a push button). -

1681 -

1682 \value SH_TabBar_Alignment The alignment for tabs in a -

1683 QTabWidget. Possible values are Qt::AlignLeft, -

1684 Qt::AlignCenter and Qt::AlignRight. -

1685 -

1686 \value SH_Header_ArrowAlignment The placement of the sorting -

1687 indicator may appear in list or table headers. Possible values -

1688 are Qt::Alignment values (that is, an OR combination of -

1689 Qt::AlignmentFlag flags). -

1690 -

1691 \value SH_Slider_SnapToValue Sliders snap to values while moving, -

1692 as they do on Windows. -

1693 -

1694 \value SH_Slider_SloppyKeyEvents Key presses handled in a sloppy -

1695 manner, i.e., left on a vertical slider subtracts a line. -

1696 -

1697 \value SH_ProgressDialog_CenterCancelButton Center button on -

1698 progress dialogs, otherwise right aligned. -

1699 -

1700 \value SH_ProgressDialog_TextLabelAlignment The alignment for text -

1701 labels in progress dialogs; Qt::AlignCenter on Windows, -

1702 Qt::AlignVCenter otherwise. -

1703 -

1704 \value SH_PrintDialog_RightAlignButtons Right align buttons in -

1705 the print dialog, as done on Windows. -

1706 -

1707 \value SH_MainWindow_SpaceBelowMenuBar One or two pixel space between -

1708 the menu bar and the dockarea, as done on Windows. -

1709 -

1710 \value SH_FontDialog_SelectAssociatedText Select the text in the -

1711 line edit, or when selecting an item from the listbox, or when -

1712 the line edit receives focus, as done on Windows. -

1713 -

1714 \value SH_Menu_KeyboardSearch Typing causes a menu to be search -

1715 for relevant items, otherwise only mnemnonic is considered. -

1716 -

1717 \value SH_Menu_AllowActiveAndDisabled Allows disabled menu -

1718 items to be active. -

1719 -

1720 \value SH_Menu_SpaceActivatesItem Pressing the space bar activates -

1721 the item, as done on Motif. -

1722 -

1723 \value SH_Menu_SubMenuPopupDelay The number of milliseconds -

1724 to wait before opening a submenu (256 on Windows, 96 on Motif). -

1725 -

1726 \value SH_Menu_Scrollable Whether popup menus must support scrolling. -

1727 -

1728 \value SH_Menu_SloppySubMenus Whether popup menus must support -

1729 the user moving the mouse cursor to a submenu while crossing -

1730 other items of the menu. This is supported on most modern -

1731 desktop platforms. -

1732 -

1733 \value SH_Menu_SubMenuUniDirection Since Qt 5.5. If the cursor has -

1734 to move towards the submenu (like it is on \macos), or if the -

1735 cursor can move in any direction as long as it reaches the -

1736 submenu before the sloppy timeout. -

1737 -

1738 \value SH_Menu_SubMenuUniDirectionFailCount Since Qt 5.5. When -

1739 SH_Menu_SubMenuUniDirection is defined this enum defines the -

1740 number of failed mouse moves before the sloppy submenu is -

1741 discarded. This can be used to control the "strictness" of the -

1742 uni direction algorithm. -

1743 -

1744 \value SH_Menu_SubMenuSloppySelectOtherActions Since Qt 5.5. Should -

1745 other action items be selected when the mouse moves towards a -

1746 sloppy submenu. -

1747 -

1748 \value SH_Menu_SubMenuSloppyCloseTimeout Since Qt 5.5. The timeout -

1749 used to close sloppy submenus. -

1750 -

1751 \value SH_Menu_SubMenuResetWhenReenteringParent Since Qt 5.5. When -

1752 entering parent from child submenu, should the sloppy state be -

1753 reset, effectively closing the child and making the current -

1754 submenu active. -

1755 -

1756 \value SH_Menu_SubMenuDontStartSloppyOnLeave Since Qt 5.5. Do not -

1757 start sloppy timers when the mouse leaves a sub-menu. -

1758 -

1759 \value SH_ScrollView_FrameOnlyAroundContents Whether scrollviews -

1760 draw their frame only around contents (like Motif), or around -

1761 contents, scroll bars and corner widgets (like Windows). -

1762 -

1763 \value SH_MenuBar_AltKeyNavigation Menu bars items are navigable -

1764 by pressing Alt, followed by using the arrow keys to select -

1765 the desired item. -

1766 -

1767 \value SH_ComboBox_ListMouseTracking Mouse tracking in combobox -

1768 drop-down lists. -

1769 -

1770 \value SH_Menu_MouseTracking Mouse tracking in popup menus. -

1771 -

1772 \value SH_MenuBar_MouseTracking Mouse tracking in menu bars. -

1773 -

1774 \value SH_Menu_FillScreenWithScroll Whether scrolling popups -

1775 should fill the screen as they are scrolled. -

1776 -

1777 \value SH_Menu_SelectionWrap Whether popups should allow the selections -

1778 to wrap, that is when selection should the next item be the first item. -

1779 -

1780 \value SH_ItemView_ChangeHighlightOnFocus Gray out selected items -

1781 when losing focus. -

1782 -

1783 \value SH_Widget_ShareActivation Turn on sharing activation with -

1784 floating modeless dialogs. -

1785 -

1786 \value SH_TabBar_SelectMouseType Which type of mouse event should -

1787 cause a tab to be selected. -

1788 -

1789 \value SH_ListViewExpand_SelectMouseType Which type of mouse event should -

1790 cause a list view expansion to be selected. -

1791 -

1792 \value SH_TabBar_PreferNoArrows Whether a tab bar should suggest a size -

1793 to prevent scoll arrows. -

1794 -

1795 \value SH_ComboBox_Popup Allows popups as a combobox drop-down -

1796 menu. -

1797 -

1798 \omitvalue SH_ComboBox_UseNativePopup -

1799 -

1800 \value SH_Workspace_FillSpaceOnMaximize The workspace should -

1801 maximize the client area. -

1802 -

1803 \value SH_TitleBar_NoBorder The title bar has no border. -

1804 -

1805 \value SH_ScrollBar_StopMouseOverSlider Obsolete. Use -

1806 SH_Slider_StopMouseOverSlider instead. -

1807 -

1808 \value SH_Slider_StopMouseOverSlider Stops auto-repeat when -

1809 the slider reaches the mouse position. -

1810 -

1811 \value SH_BlinkCursorWhenTextSelected Whether cursor should blink -

1812 when text is selected. -

1813 -

1814 \value SH_RichText_FullWidthSelection Whether richtext selections -

1815 should extend to the full width of the document. -

1816 -

1817 \value SH_GroupBox_TextLabelVerticalAlignment How to vertically align a -

1818 group box's text label. -

1819 -

1820 \value SH_GroupBox_TextLabelColor How to paint a group box's text label. -

1821 -

1822 \value SH_DialogButtons_DefaultButton Which button gets the -

1823 default status in a dialog's button widget. -

1824 -

1825 \value SH_ToolBox_SelectedPageTitleBold Boldness of the selected -

1826 page title in a QToolBox. -

1827 -

1828 \value SH_LineEdit_PasswordCharacter The Unicode character to be -

1829 used for passwords. -

1830 -

1831 \value SH_LineEdit_PasswordMaskDelay Determines the delay before visible character is masked -

1832 with password character, in milliseconds. This enum value was added in Qt 5.4. -

1833 -

1834 \value SH_Table_GridLineColor The RGB value of the grid for a table. -

1835 -

1836 \value SH_UnderlineShortcut Whether shortcuts are underlined. -

1837 -

1838 \value SH_SpellCheckUnderlineStyle A -

1839 QTextCharFormat::UnderlineStyle value that specifies the way -

1840 misspelled words should be underlined. -

1841 -

1842 \value SH_SpinBox_AnimateButton Animate a click when up or down is -

1843 pressed in a spin box. -

1844 \value SH_SpinBox_KeyPressAutoRepeatRate Auto-repeat interval for -

1845 spinbox key presses. -

1846 \value SH_SpinBox_ClickAutoRepeatRate Auto-repeat interval for -

1847 spinbox mouse clicks. -

1848 \value SH_SpinBox_ClickAutoRepeatThreshold Auto-repeat threshold for -

1849 spinbox mouse clicks. -

1850 \value SH_ToolTipLabel_Opacity An integer indicating the opacity for -

1851 the tip label, 0 is completely transparent, 255 is completely -

1852 opaque. -

1853 \value SH_DrawMenuBarSeparator Indicates whether or not the menu bar draws separators. -

1854 \value SH_TitleBar_ModifyNotification Indicates if the title bar should show -

1855 a '*' for windows that are modified. -

1856 -

1857 \value SH_Button_FocusPolicy The default focus policy for buttons. -

1858 -

1859 \value SH_CustomBase Base value for custom style hints. -

1860 Custom values must be greater than this value. -

1861 -

1862 \value SH_MessageBox_UseBorderForButtonSpacing A boolean indicating what the to -

1863 use the border of the buttons (computed as half the button height) for the spacing -

1864 of the button in a message box. -

1865 -

1866 \value SH_MessageBox_CenterButtons A boolean indicating whether the buttons in the -

1867 message box should be centered or not (see QDialogButtonBox::setCentered()). -

1868 -

1869 \value SH_MessageBox_TextInteractionFlags A boolean indicating if -

1870 the text in a message box should allow user interfactions (e.g. -

1871 selection) or not. -

1872 -

1873 \value SH_TitleBar_AutoRaise A boolean indicating whether -

1874 controls on a title bar ought to update when the mouse is over them. -

1875 -

1876 \value SH_ToolButton_PopupDelay An int indicating the popup delay in milliseconds -

1877 for menus attached to tool buttons. -

1878 -

1879 \value SH_FocusFrame_Mask The mask of the focus frame. -

1880 -

1881 \value SH_RubberBand_Mask The mask of the rubber band. -

1882 -

1883 \value SH_WindowFrame_Mask The mask of the window frame. -

1884 -

1885 \value SH_SpinControls_DisableOnBounds Determines if the spin controls will shown -

1886 as disabled when reaching the spin range boundary. -

1887 -

1888 \value SH_Dial_BackgroundRole Defines the style's preferred -

1889 background role (as QPalette::ColorRole) for a dial widget. -

1890 -

1891 \value SH_ComboBox_LayoutDirection The layout direction for the -

1892 combo box. By default it should be the same as indicated by the -

1893 QStyleOption::direction variable. -

1894 -

1895 \value SH_ItemView_EllipsisLocation The location where ellipses should be -

1896 added for item text that is too long to fit in an view item. -

1897 -

1898 \value SH_ItemView_ShowDecorationSelected When an item in an item -

1899 view is selected, also highlight the branch or other decoration. -

1900 -

1901 \value SH_ItemView_ActivateItemOnSingleClick Emit the activated signal -

1902 when the user single clicks on an item in an item in an item view. -

1903 Otherwise the signal is emitted when the user double clicks on an item. -

1904 -

1905 \value SH_Slider_AbsoluteSetButtons Which mouse buttons cause a slider -

1906 to set the value to the position clicked on. -

1907 -

1908 \value SH_Slider_PageSetButtons Which mouse buttons cause a slider -

1909 to page step the value. -

1910 -

1911 \value SH_TabBar_ElideMode The default eliding style for a tab bar. -

1912 -

1913 \value SH_DialogButtonLayout Controls how buttons are laid out in a QDialogButtonBox, returns a QDialogButtonBox::ButtonLayout enum. -

1914 -

1915 \value SH_WizardStyle Controls the look and feel of a QWizard. Returns a QWizard::WizardStyle enum. -

1916 -

1917 \value SH_FormLayoutWrapPolicy Provides a default for how rows are wrapped in a QFormLayout. Returns a QFormLayout::RowWrapPolicy enum. -

1918 \value SH_FormLayoutFieldGrowthPolicy Provides a default for how fields can grow in a QFormLayout. Returns a QFormLayout::FieldGrowthPolicy enum. -

1919 \value SH_FormLayoutFormAlignment Provides a default for how a QFormLayout aligns its contents within the available space. Returns a Qt::Alignment enum. -

1920 \value SH_FormLayoutLabelAlignment Provides a default for how a QFormLayout aligns labels within the available space. Returns a Qt::Alignment enum. -

1921 -

1922 \value SH_ItemView_ArrowKeysNavigateIntoChildren Controls whether the tree view will select the first child when it is exapanded and the right arrow key is pressed. -

1923 \value SH_ComboBox_PopupFrameStyle The frame style used when drawing a combobox popup menu. -

1924 -

1925 \value SH_DialogButtonBox_ButtonsHaveIcons Indicates whether or not StandardButtons in QDialogButtonBox should have icons or not. -

1926 \value SH_ItemView_MovementWithoutUpdatingSelection The item view is able to indicate a current item without changing the selection. -

1927 \value SH_ToolTip_Mask The mask of a tool tip. -

1928 -

1929 \value SH_FocusFrame_AboveWidget The FocusFrame is stacked above the widget that it is "focusing on". -

1930 -

1931 \value SH_TextControl_FocusIndicatorTextCharFormat Specifies the text format used to highlight focused anchors in rich text -

1932 documents displayed for example in QTextBrowser. The format has to be a QTextCharFormat returned in the variant of the -

1933 QStyleHintReturnVariant return value. The QTextFormat::OutlinePen property is used for the outline and QTextFormat::BackgroundBrush -

1934 for the background of the highlighted area. -

1935 -

1936 \value SH_Menu_FlashTriggeredItem Flash triggered item. -

1937 \value SH_Menu_FadeOutOnHide Fade out the menu instead of hiding it immediately. -

1938 -

1939 \value SH_TabWidget_DefaultTabPosition Default position of the tab bar in a tab widget. -

1940 -

1941 \value SH_ToolBar_Movable Determines if the tool bar is movable by default. -

1942 -

1943 \value SH_ItemView_PaintAlternatingRowColorsForEmptyArea Whether QTreeView paints alternating row colors for the area that does not have any items. -

1944 -

1945 \value SH_Menu_Mask The mask for a popup menu. -

1946 -

1947 \value SH_ItemView_DrawDelegateFrame Determines if there should be a frame for a delegate widget. -

1948 -

1949 \value SH_TabBar_CloseButtonPosition Determines the position of the close button on a tab in a tab bar. -

1950 -

1951 \value SH_DockWidget_ButtonsHaveFrame Determines if dockwidget buttons should have frames. Default is true. -

1952 -

1953 \value SH_ToolButtonStyle Determines the default system style for tool buttons that uses Qt::ToolButtonFollowStyle. -

1954 -

1955 \value SH_RequestSoftwareInputPanel Determines when a software input panel should -

1956 be requested by input widgets. Returns an enum of type QStyle::RequestSoftwareInputPanel. -

1957 -

1958 \value SH_ScrollBar_Transient Determines if the style supports transient scroll bars. Transient -

1959 scroll bars appear when the content is scrolled and disappear when they are no longer needed. -

1960 -

1961 \value SH_Menu_SupportsSections Determines if the style displays sections in menus or treat them as -

1962 plain separators. Sections are separators with a text and icon hint. -

1963 -

1964 \value SH_ToolTip_WakeUpDelay Determines the delay before a tooltip is shown, in milliseconds. -

1965 -

1966 \value SH_ToolTip_FallAsleepDelay Determines the delay (in milliseconds) before a new wake time is needed when -

1967 a tooltip is shown (notice: shown, not hidden). When a new wake isn't needed, a user-requested tooltip -

1968 will be shown nearly instantly. -

1969 -

1970 \value SH_Widget_Animate Determines if the widget should show animations or not, for example -

1971 a transition between checked and unchecked statuses in a checkbox. -

1972 This enum value has been introduced in Qt 5.2. -

1973 -

1974 \value SH_Splitter_OpaqueResize Determines if resizing is opaque -

1975 This enum value has been introduced in Qt 5.2 -

1976 -

1977 \value SH_TabBar_ChangeCurrentDelay Determines the delay before the current -

1978 tab is changed while dragging over the tabbar, in milliseconds. This -

1979 enum value has been introduced in Qt 5.4 -

1980 -

1981 \value SH_ItemView_ScrollMode The default vertical and horizontal scroll mode as specified -

1982 by the style. Can be overridden with QAbstractItemView::setVerticalScrollMode() and -

1983 QAbstractItemView::setHorizontalScrollMode(). This enum value has been introduced in Qt 5.7. -

1984 -

1985 \sa styleHint() -

1986 */ -

1987 -

1988 /*! -

1989 \fn int QStyle::styleHint(StyleHint hint, const QStyleOption *option, \ -

1990 const QWidget *widget, QStyleHintReturn *returnData) const -

1991 -

1992 Returns an integer representing the specified style \a hint for -

1993 the given \a widget described by the provided style \a option. -

1994 -

1995 \a returnData is used when the querying widget needs more detailed data than -

1996 the integer that styleHint() returns. See the QStyleHintReturn class -

1997 description for details. -

1998 */ -

1999 -

2000 /*! -

2001 \enum QStyle::StandardPixmap -

2002 -

2003 This enum describes the available standard pixmaps. A standard pixmap is a pixmap that -

2004 can follow some existing GUI style or guideline. -

2005 -

2006 \value SP_TitleBarMinButton Minimize button on title bars (e.g., -

2007 in QMdiSubWindow). -

2008 \value SP_TitleBarMenuButton Menu button on a title bar. -

2009 \value SP_TitleBarMaxButton Maximize button on title bars. -

2010 \value SP_TitleBarCloseButton Close button on title bars. -

2011 \value SP_TitleBarNormalButton Normal (restore) button on title bars. -

2012 \value SP_TitleBarShadeButton Shade button on title bars. -

2013 \value SP_TitleBarUnshadeButton Unshade button on title bars. -

2014 \value SP_TitleBarContextHelpButton The Context help button on title bars. -

2015 \value SP_MessageBoxInformation The "information" icon. -

2016 \value SP_MessageBoxWarning The "warning" icon. -

2017 \value SP_MessageBoxCritical The "critical" icon. -

2018 \value SP_MessageBoxQuestion The "question" icon. -

2019 \value SP_DesktopIcon The "desktop" icon. -

2020 \value SP_TrashIcon The "trash" icon. -

2021 \value SP_ComputerIcon The "My computer" icon. -

2022 \value SP_DriveFDIcon The floppy icon. -

2023 \value SP_DriveHDIcon The harddrive icon. -

2024 \value SP_DriveCDIcon The CD icon. -

2025 \value SP_DriveDVDIcon The DVD icon. -

2026 \value SP_DriveNetIcon The network icon. -

2027 \value SP_DirHomeIcon The home directory icon. -

2028 \value SP_DirOpenIcon The open directory icon. -

2029 \value SP_DirClosedIcon The closed directory icon. -

2030 \value SP_DirIcon The directory icon. -

2031 \value SP_DirLinkIcon The link to directory icon. -

2032 \value SP_DirLinkOpenIcon The link to open directory icon. -

2033 \value SP_FileIcon The file icon. -

2034 \value SP_FileLinkIcon The link to file icon. -

2035 \value SP_FileDialogStart The "start" icon in a file dialog. -

2036 \value SP_FileDialogEnd The "end" icon in a file dialog. -

2037 \value SP_FileDialogToParent The "parent directory" icon in a file dialog. -

2038 \value SP_FileDialogNewFolder The "create new folder" icon in a file dialog. -

2039 \value SP_FileDialogDetailedView The detailed view icon in a file dialog. -

2040 \value SP_FileDialogInfoView The file info icon in a file dialog. -

2041 \value SP_FileDialogContentsView The contents view icon in a file dialog. -

2042 \value SP_FileDialogListView The list view icon in a file dialog. -

2043 \value SP_FileDialogBack The back arrow in a file dialog. -

2044 \value SP_DockWidgetCloseButton Close button on dock windows (see also QDockWidget). -

2045 \value SP_ToolBarHorizontalExtensionButton Extension button for horizontal toolbars. -

2046 \value SP_ToolBarVerticalExtensionButton Extension button for vertical toolbars. -

2047 \value SP_DialogOkButton Icon for a standard OK button in a QDialogButtonBox. -

2048 \value SP_DialogCancelButton Icon for a standard Cancel button in a QDialogButtonBox. -

2049 \value SP_DialogHelpButton Icon for a standard Help button in a QDialogButtonBox. -

2050 \value SP_DialogOpenButton Icon for a standard Open button in a QDialogButtonBox. -

2051 \value SP_DialogSaveButton Icon for a standard Save button in a QDialogButtonBox. -

2052 \value SP_DialogCloseButton Icon for a standard Close button in a QDialogButtonBox. -

2053 \value SP_DialogApplyButton Icon for a standard Apply button in a QDialogButtonBox. -

2054 \value SP_DialogResetButton Icon for a standard Reset button in a QDialogButtonBox. -

2055 \value SP_DialogDiscardButton Icon for a standard Discard button in a QDialogButtonBox. -

2056 \value SP_DialogYesButton Icon for a standard Yes button in a QDialogButtonBox. -

2057 \value SP_DialogNoButton Icon for a standard No button in a QDialogButtonBox. -

2058 \value SP_ArrowUp Icon arrow pointing up. -

2059 \value SP_ArrowDown Icon arrow pointing down. -

2060 \value SP_ArrowLeft Icon arrow pointing left. -

2061 \value SP_ArrowRight Icon arrow pointing right. -

2062 \value SP_ArrowBack Equivalent to SP_ArrowLeft when the current layout direction is Qt::LeftToRight, otherwise SP_ArrowRight. -

2063 \value SP_ArrowForward Equivalent to SP_ArrowRight when the current layout direction is Qt::LeftToRight, otherwise SP_ArrowLeft. -

2064 \value SP_CommandLink Icon used to indicate a Vista style command link glyph. -

2065 \value SP_VistaShield Icon used to indicate UAC prompts on Windows Vista. This will return a null pixmap or icon on all other platforms. -

2066 \value SP_BrowserReload Icon indicating that the current page should be reloaded. -

2067 \value SP_BrowserStop Icon indicating that the page loading should stop. -

2068 \value SP_MediaPlay Icon indicating that media should begin playback. -

2069 \value SP_MediaStop Icon indicating that media should stop playback. -

2070 \value SP_MediaPause Icon indicating that media should pause playback. -

2071 \value SP_MediaSkipForward Icon indicating that media should skip forward. -

2072 \value SP_MediaSkipBackward Icon indicating that media should skip backward. -

2073 \value SP_MediaSeekForward Icon indicating that media should seek forward. -

2074 \value SP_MediaSeekBackward Icon indicating that media should seek backward. -

2075 \value SP_MediaVolume Icon indicating a volume control. -

2076 \value SP_MediaVolumeMuted Icon indicating a muted volume control. -

2077 \value SP_LineEditClearButton Icon for a standard clear button in a QLineEdit. This enum value was added in Qt 5.2. -

2078 \value SP_CustomBase Base value for custom standard pixmaps; -

2079 custom values must be greater than this value. -

2080 -

2081 \sa standardIcon() -

2082 */ -

2083 -

2084 /*! -

2085 \fn QPixmap QStyle::generatedIconPixmap(QIcon::Mode iconMode, -

2086 const QPixmap &pixmap, const QStyleOption *option) const -

2087 -

2088 Returns a copy of the given \a pixmap, styled to conform to the -

2089 specified \a iconMode and taking into account the palette -

2090 specified by \a option. -

2091 -

2092 The \a option parameter can pass extra information, but -

2093 it must contain a palette. -

2094 -

2095 Note that not all pixmaps will conform, in which case the returned -

2096 pixmap is a plain copy. -

2097 -

2098 \sa QIcon -

2099 */ -

2100 -

2101 /*! -

2102 \fn QPixmap QStyle::standardPixmap(StandardPixmap standardPixmap, const QStyleOption *option, \ -

2103 const QWidget *widget) const -

2104 -

2105 \obsolete -

2106 Returns a pixmap for the given \a standardPixmap. -

2107 -

2108 A standard pixmap is a pixmap that can follow some existing GUI -

2109 style or guideline. The \a option argument can be used to pass -

2110 extra information required when defining the appropriate -

2111 pixmap. The \a widget argument is optional and can also be used to -

2112 aid the determination of the pixmap. -

2113 -

2114 Developers calling standardPixmap() should instead call standardIcon() -

2115 Developers who re-implemented standardPixmap() should instead re-implement -

2116 standardIcon(). -

2117 -

2118 \sa standardIcon() -

2119 */ -

2120 -

2121 -

2122 /*! -

2123 \fn QRect QStyle::visualRect(Qt::LayoutDirection direction, const QRect &boundingRectangle, const QRect &logicalRectangle) -

2124 -

2125 Returns the given \a logicalRectangle converted to screen -

2126 coordinates based on the specified \a direction. The \a -

2127 boundingRectangle is used when performing the translation. -

2128 -

2129 This function is provided to support right-to-left desktops, and -

2130 is typically used in implementations of the subControlRect() -

2131 function. -

2132 -

2133 \sa QWidget::layoutDirection -

2134 */ -

2135 QRect QStyle::visualRect(Qt::LayoutDirection direction, const QRect &boundingRect, const QRect &logicalRect) -

2136 { -

2137

if (direction == Qt::LeftToRight)

direction == Qt::LeftToRight	Description
TRUE	never evaluated
FALSE	never evaluated

2138

return logicalRect;

never executed: return logicalRect;

2139 QRect rect = logicalRect; -

2140 rect.translate(2 * (boundingRect.right() - logicalRect.right()) + -

2141 logicalRect.width() - boundingRect.width(), 0); -

2142

return rect;

never executed: return rect;

2143 } -

2144 -

2145 /*! -

2146 \fn QPoint QStyle::visualPos(Qt::LayoutDirection direction, const QRect &boundingRectangle, const QPoint &logicalPosition) -

2147 -

2148 Returns the given \a logicalPosition converted to screen -

2149 coordinates based on the specified \a direction. The \a -

2150 boundingRectangle is used when performing the translation. -

2151 -

2152 \sa QWidget::layoutDirection -

2153 */ -

2154 QPoint QStyle::visualPos(Qt::LayoutDirection direction, const QRect &boundingRect, const QPoint &logicalPos) -

2155 { -

2156

if (direction == Qt::LeftToRight)

direction == Qt::LeftToRight	Description
TRUE	never evaluated
FALSE	never evaluated

2157

return logicalPos;

never executed: return logicalPos;

2158

return QPoint(boundingRect.right() - logicalPos.x(), logicalPos.y());

never executed: return QPoint(boundingRect.right() - logicalPos.x(), logicalPos.y());

2159 } -

2160 -

2161 /*! -

2162 Returns a new rectangle of the specified \a size that is aligned to the given \a -

2163 rectangle according to the specified \a alignment and \a direction. -

2164 */ -

2165 QRect QStyle::alignedRect(Qt::LayoutDirection direction, Qt::Alignment alignment, const QSize &size, const QRect &rectangle) -

2166 { -

2167 alignment = visualAlignment(direction, alignment); -

2168 int x = rectangle.x(); -

2169 int y = rectangle.y(); -

2170 int w = size.width(); -

2171 int h = size.height(); -

2172

if ((alignment & Qt::AlignVCenter) == Qt::AlignVCenter)

(alignment & Q...::AlignVCenter	Description
TRUE	never evaluated
FALSE	never evaluated

2173

y += rectangle.size().height()/2 - h/2;

never executed: y += rectangle.size().height()/2 - h/2;

2174

else if ((alignment & Qt::AlignBottom) == Qt::AlignBottom)

(alignment & Q...t::AlignBottom	Description
TRUE	never evaluated
FALSE	never evaluated

2175

y += rectangle.size().height() - h;

never executed: y += rectangle.size().height() - h;

2176

if ((alignment & Qt::AlignRight) == Qt::AlignRight)

(alignment & Q...Qt::AlignRight	Description
TRUE	never evaluated
FALSE	never evaluated

2177

x += rectangle.size().width() - w;

never executed: x += rectangle.size().width() - w;

2178

else if ((alignment & Qt::AlignHCenter) == Qt::AlignHCenter)

(alignment & Q...::AlignHCenter	Description
TRUE	never evaluated
FALSE	never evaluated

2179

x += rectangle.size().width()/2 - w/2;

never executed: x += rectangle.size().width()/2 - w/2;

2180

return QRect(x, y, w, h);

never executed: return QRect(x, y, w, h);

2181 } -

2182 -

2183 /*! -

2184 Transforms an \a alignment of Qt::AlignLeft or Qt::AlignRight -

2185 without Qt::AlignAbsolute into Qt::AlignLeft or Qt::AlignRight with -

2186 Qt::AlignAbsolute according to the layout \a direction. The other -

2187 alignment flags are left untouched. -

2188 -

2189 If no horizontal alignment was specified, the function returns the -

2190 default alignment for the given layout \a direction. -

2191 -

2192 QWidget::layoutDirection -

2193 */ -

2194 Qt::Alignment QStyle::visualAlignment(Qt::LayoutDirection direction, Qt::Alignment alignment) -

2195 { -

2196

return QGuiApplicationPrivate::visualAlignment(direction, alignment);

never executed: return QGuiApplicationPrivate::visualAlignment(direction, alignment);

2197 } -

2198 -

2199 /*! -

2200 Converts the given \a logicalValue to a pixel position. The \a min -

2201 parameter maps to 0, \a max maps to \a span and other values are -

2202 distributed evenly in-between. -

2203 -

2204 This function can handle the entire integer range without -

2205 overflow, providing that \a span is less than 4096. -

2206 -

2207 By default, this function assumes that the maximum value is on the -

2208 right for horizontal items and on the bottom for vertical items. -

2209 Set the \a upsideDown parameter to true to reverse this behavior. -

2210 -

2211 \sa sliderValueFromPosition() -

2212 */ -

2213 -

2214 int QStyle::sliderPositionFromValue(int min, int max, int logicalValue, int span, bool upsideDown) -

2215 { -

2216

if (span <= 0 || logicalValue < min || max <= min)

span <= 0	Description
TRUE	never evaluated
FALSE	never evaluated

logicalValue < min	Description
TRUE	never evaluated
FALSE	never evaluated

max <= min	Description
TRUE	never evaluated
FALSE	never evaluated

2217

return 0;

never executed: return 0;

2218

if (logicalValue > max)

logicalValue > max	Description
TRUE	never evaluated
FALSE	never evaluated

2219

return upsideDown ? span : min;

never executed: return upsideDown ? span : min;

2220 -

2221 uint range = max - min; -

2222

uint p = upsideDown ? max - logicalValue : logicalValue - min;

upsideDown	Description
TRUE	never evaluated
FALSE	never evaluated

2223 -

2224

if (range > (uint)INT_MAX/4096) {

range > (uint)2147483647/4096	Description
TRUE	never evaluated
FALSE	never evaluated

2225 double dpos = (double(p))/(double(range)/span); -

2226

return int(dpos);

never executed: return int(dpos);

2227

} else if (range > (uint)span) {

range > (uint)span	Description
TRUE	never evaluated
FALSE	never evaluated

2228

return (2 * p * span + range) / (2*range);

never executed: return (2 * p * span + range) / (2*range);

2229 } else { -

2230 uint div = span / range; -

2231 uint mod = span % range; -

2232

return p * div + (2 * p * mod + range) / (2 * range);

never executed: return p * div + (2 * p * mod + range) / (2 * range);

2233 } -

2234 // equiv. to (p * span) / range + 0.5 -

2235 // no overflow because of this implicit assumption: -

2236 // span <= 4096 -

2237 } -

2238 -

2239 /*! -

2240 \fn int QStyle::sliderValueFromPosition(int min, int max, int position, int span, bool upsideDown) -

2241 -

2242 Converts the given pixel \a position to a logical value. 0 maps to -

2243 the \a min parameter, \a span maps to \a max and other values are -

2244 distributed evenly in-between. -

2245 -

2246 This function can handle the entire integer range without -

2247 overflow. -

2248 -

2249 By default, this function assumes that the maximum value is on the -

2250 right for horizontal items and on the bottom for vertical -

2251 items. Set the \a upsideDown parameter to true to reverse this -

2252 behavior. -

2253 -

2254 \sa sliderPositionFromValue() -

2255 */ -

2256 -

2257 int QStyle::sliderValueFromPosition(int min, int max, int pos, int span, bool upsideDown) -

2258 { -

2259

if (span <= 0 || pos <= 0)

span <= 0	Description
TRUE	never evaluated
FALSE	never evaluated

pos <= 0	Description
TRUE	never evaluated
FALSE	never evaluated

2260

return upsideDown ? max : min;

never executed: return upsideDown ? max : min;

2261

if (pos >= span)

pos >= span	Description
TRUE	never evaluated
FALSE	never evaluated

2262

return upsideDown ? min : max;

never executed: return upsideDown ? min : max;

2263 -

2264 uint range = max - min; -

2265 -

2266

if ((uint)span > range) {

(uint)span > range	Description
TRUE	never evaluated
FALSE	never evaluated

2267 int tmp = (2 * pos * range + span) / (2 * span); -

2268

return upsideDown ? max - tmp : tmp + min;

never executed: return upsideDown ? max - tmp : tmp + min;

2269 } else { -

2270 uint div = range / span; -

2271 uint mod = range % span; -

2272 int tmp = pos * div + (2 * pos * mod + span) / (2 * span); -

2273

return upsideDown ? max - tmp : tmp + min;

never executed: return upsideDown ? max - tmp : tmp + min;

2274 } -

2275 // equiv. to min + (pos*range)/span + 0.5 -

2276 // no overflow because of this implicit assumption: -

2277 // pos <= span < sqrt(INT_MAX+0.0625)+0.25 ~ sqrt(INT_MAX) -

2278 } -

2279 -

2280 /*! -

2281 Returns the style's standard palette. -

2282 -

2283 Note that on systems that support system colors, the style's -

2284 standard palette is not used. In particular, the Windows XP, -

2285 Vista, and Mac styles do not use the standard palette, but make -

2286 use of native theme engines. With these styles, you should not set -

2287 the palette with QApplication::setPalette(). -

2288 -

2289 \sa QApplication::setPalette() -

2290 */ -

2291 QPalette QStyle::standardPalette() const -

2292 { -

2293 QColor background = QColor(0xd4, 0xd0, 0xc8); // win 2000 grey -

2294 -

2295 QColor light(background.lighter()); -

2296 QColor dark(background.darker()); -

2297 QColor mid(Qt::gray); -

2298 QPalette palette(Qt::black, background, light, dark, mid, Qt::black, Qt::white); -

2299 palette.setBrush(QPalette::Disabled, QPalette::WindowText, dark); -

2300 palette.setBrush(QPalette::Disabled, QPalette::Text, dark); -

2301 palette.setBrush(QPalette::Disabled, QPalette::ButtonText, dark); -

2302 palette.setBrush(QPalette::Disabled, QPalette::Base, background); -

2303

return palette;

never executed: return palette;

2304 } -

2305 -

2306 /*! -

2307 \since 4.1 -

2308 -

2309 \fn QIcon QStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option = 0, -

2310 const QWidget *widget = 0) const = 0; -

2311 -

2312 Returns an icon for the given \a standardIcon. -

2313 -

2314 The \a standardIcon is a standard pixmap which can follow some -

2315 existing GUI style or guideline. The \a option argument can be -

2316 used to pass extra information required when defining the -

2317 appropriate icon. The \a widget argument is optional and can also -

2318 be used to aid the determination of the icon. -

2319 */ -

2320 -

2321 /*! -

2322 \since 4.3 -

2323 -

2324 \fn int QStyle::layoutSpacing(QSizePolicy::ControlType control1, -

2325 QSizePolicy::ControlType control2, Qt::Orientation orientation, -

2326 const QStyleOption *option = 0, const QWidget *widget = 0) const -

2327 -

2328 Returns the spacing that should be used between \a control1 and -

2329 \a control2 in a layout. \a orientation specifies whether the -

2330 controls are laid out side by side or stacked vertically. The \a -

2331 option parameter can be used to pass extra information about the -

2332 parent widget. The \a widget parameter is optional and can also -

2333 be used if \a option is 0. -

2334 -

2335 This function is called by the layout system. It is used only if -

2336 PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a -

2337 negative value. -

2338 -

2339 \sa combinedLayoutSpacing() -

2340 */ -

2341 -

2342 /*! -

2343 \since 4.3 -

2344 -

2345 Returns the spacing that should be used between \a controls1 and -

2346 \a controls2 in a layout. \a orientation specifies whether the -

2347 controls are laid out side by side or stacked vertically. The \a -

2348 option parameter can be used to pass extra information about the -

2349 parent widget. The \a widget parameter is optional and can also -

2350 be used if \a option is 0. -

2351 -

2352 \a controls1 and \a controls2 are OR-combination of zero or more -

2353 \l{QSizePolicy::ControlTypes}{control types}. -

2354 -

2355 This function is called by the layout system. It is used only if -

2356 PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a -

2357 negative value. -

2358 -

2359 \sa layoutSpacing() -

2360 */ -

2361 int QStyle::combinedLayoutSpacing(QSizePolicy::ControlTypes controls1, -

2362 QSizePolicy::ControlTypes controls2, Qt::Orientation orientation, -

2363 QStyleOption *option, QWidget *widget) const -

2364 { -

2365 QSizePolicy::ControlType array1[MaxBits]; -

2366 QSizePolicy::ControlType array2[MaxBits]; -

2367 int count1 = unpackControlTypes(controls1, array1); -

2368 int count2 = unpackControlTypes(controls2, array2); -

2369 int result = -1; -

2370 -

2371

for (int i = 0; i < count1; ++i) {

i < count1	Description
TRUE	never evaluated
FALSE	never evaluated

2372

for (int j = 0; j < count2; ++j) {

j < count2	Description
TRUE	never evaluated
FALSE	never evaluated

2373 int spacing = layoutSpacing(array1[i], array2[j], orientation, option, widget); -

2374 result = qMax(spacing, result); -

2375

}

never executed: end of block

2376

}

never executed: end of block

2377

return result;

never executed: return result;

2378 } -

2379 -

2380 // ### Qt 6: Remove in favor of template<class T> QDebug operator<<(QDebug, const QFlags<T> &). -

2381 #if QT_VERSION < QT_VERSION_CHECK(6,0,0) -

2382 QT_BEGIN_INCLUDE_NAMESPACE -

2383 # include <QDebug> -

2384 QT_END_INCLUDE_NAMESPACE -

2385 -

2386 # if !defined(QT_NO_DEBUG_STREAM) -

2387 QDebug operator<<(QDebug debug, QStyle::State state) -

2388 { -

2389 # if !defined(QT_NO_DEBUG) -

2390

return operator<< <QStyle::StateFlag>(debug, state);

never executed: return operator<< <QStyle::StateFlag>(debug, state);

2391 # else -

2392 Q_UNUSED(state); -

2393 return debug; -

2394 # endif -

2395 } -

2396 # endif // !QT_NO_DEBUG_STREAM -

2397 #endif // QT_VERSION < QT_VERSION_CHECK(6,0,0) -

2398 -

2399 /*! -

2400 \since 4.6 -

2401 -

2402 \fn const QStyle *QStyle::proxy() const -

2403 -

2404 This function returns the current proxy for this style. -

2405 By default most styles will return themselves. However -

2406 when a proxy style is in use, it will allow the style to -

2407 call back into its proxy. -

2408 */ -

2409 const QStyle * QStyle::proxy() const -

2410 { -

2411 Q_D(const QStyle); -

2412

return d->proxyStyle;

never executed: return d->proxyStyle;

2413 } -

2414 -

2415 /* \internal -

2416 -

2417 This function sets the base style that style calls will be -

2418 redirected to. Note that ownership is not transferred. -

2419 */ -

2420 void QStyle::setProxy(QStyle *style) -

2421 { -

2422 Q_D(QStyle); -

2423 d->proxyStyle = style; -

2424

}

never executed: end of block

2425 -

2426 QT_END_NAMESPACE -

2427 -

2428 #include "moc_qstyle.cpp" -

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