qitemdelegate.cpp

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39 -

40 #include "qitemdelegate.h" -

41 -

42 #ifndef QT_NO_ITEMVIEWS -

43 #include <qabstractitemmodel.h> -

44 #include <qapplication.h> -

45 #include <qbrush.h> -

46 #include <qpainter.h> -

47 #include <qpalette.h> -

48 #include <qpoint.h> -

49 #include <qrect.h> -

50 #include <qsize.h> -

51 #include <qstyle.h> -

52 #include <qdatetime.h> -

53 #include <qstyleoption.h> -

54 #include <qevent.h> -

55 #include <qpixmap.h> -

56 #include <qbitmap.h> -

57 #include <qpixmapcache.h> -

58 #include <qitemeditorfactory.h> -

59 #include <qmetaobject.h> -

60 #include <qtextlayout.h> -

61 #include <private/qabstractitemdelegate_p.h> -

62 #include <private/qtextengine_p.h> -

63 #include <qdebug.h> -

64 #include <qlocale.h> -

65 #include <qdialog.h> -

66 #include <qmath.h> -

67 -

68 #include <limits.h> -

69 -

70 // keep in sync with QAbstractItemDelegate::helpEvent() -

71 #ifndef DBL_DIG -

72 # define DBL_DIG 10 -

73 #endif -

74 -

75 QT_BEGIN_NAMESPACE -

76 -

77 class QItemDelegatePrivate : public QAbstractItemDelegatePrivate -

78 { -

79 Q_DECLARE_PUBLIC(QItemDelegate) -

80 -

81 public: -

QItemDelegatePrivate() : f(0), clipPainting(true) {}

never executed: end of block

83 -

84 inline const QItemEditorFactory *editorFactory() const -

{ return f ? f : QItemEditorFactory::defaultFactory(); }

never executed: return f ? f : QItemEditorFactory::defaultFactory();

86 -

87 inline QIcon::Mode iconMode(QStyle::State state) const -

88 { -

if (!(state & QStyle::State_Enabled)) return QIcon::Disabled;

never executed: return QIcon::Disabled;

!(state & QSty...State_Enabled)	Description
TRUE	never evaluated
FALSE	never evaluated

if (state & QStyle::State_Selected) return QIcon::Selected;

never executed: return QIcon::Selected;

state & QStyle::State_Selected	Description
TRUE	never evaluated
FALSE	never evaluated

return QIcon::Normal;

never executed: return QIcon::Normal;

92 } -

93 -

94 inline QIcon::State iconState(QStyle::State state) const -

{ return state & QStyle::State_Open ? QIcon::On : QIcon::Off; }

never executed: return state & QStyle::State_Open ? QIcon::On : QIcon::Off;

96 -

97 inline static QString replaceNewLine(QString text) -

98 { -

99 const QChar nl = QLatin1Char('\n'); -

100

for (int i = 0; i < text.count(); ++i)

i < text.count()	Description
TRUE	never evaluated
FALSE	never evaluated

101

if (text.at(i) == nl)

text.at(i) == nl	Description
TRUE	never evaluated
FALSE	never evaluated

102

text[i] = QChar::LineSeparator;

never executed: text[i] = QChar::LineSeparator;

103

return text;

never executed: return text;

104 } -

105 -

106 QString valueToText(const QVariant &value, const QStyleOptionViewItem &option) const; -

107 -

108 QItemEditorFactory *f; -

109 bool clipPainting; -

110 -

111 QRect textLayoutBounds(const QStyleOptionViewItem &options) const; -

112 QSizeF doTextLayout(int lineWidth) const; -

113 mutable QTextLayout textLayout; -

114 mutable QTextOption textOption; -

115 -

116 const QWidget *widget(const QStyleOptionViewItem &option) const -

117 { -

118

return option.widget;

never executed: return option.widget;

119 } -

120 -

121 // ### temporary hack until we have QStandardItemDelegate -

122 mutable struct Icon { -

123 QIcon icon; -

124 QIcon::Mode mode; -

125 QIcon::State state; -

126 } tmp; -

127 }; -

128 -

129 QRect QItemDelegatePrivate::textLayoutBounds(const QStyleOptionViewItem &option) const -

130 { -

131 QRect rect = option.rect; -

132 const bool wrapText = option.features & QStyleOptionViewItem::WrapText; -

133 switch (option.decorationPosition) { -

134

case QStyleOptionViewItem::Left:

never executed: case QStyleOptionViewItem::Left:

135

case QStyleOptionViewItem::Right:

never executed: case QStyleOptionViewItem::Right:

136 rect.setWidth(wrapText && rect.isValid() ? rect.width() : (QFIXED_MAX)); -

137

break;

never executed: break;

138

case QStyleOptionViewItem::Top:

never executed: case QStyleOptionViewItem::Top:

139

case QStyleOptionViewItem::Bottom:

never executed: case QStyleOptionViewItem::Bottom:

140 rect.setWidth(wrapText ? option.decorationSize.width() : (QFIXED_MAX)); -

141

break;

never executed: break;

142 } -

143 -

144

return rect;

never executed: return rect;

145 } -

146 -

147 QSizeF QItemDelegatePrivate::doTextLayout(int lineWidth) const -

148 { -

149 qreal height = 0; -

150 qreal widthUsed = 0; -

151 textLayout.beginLayout(); -

152 while (true) { -

153 QTextLine line = textLayout.createLine(); -

154

if (!line.isValid())

!line.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

155

break;

never executed: break;

156 line.setLineWidth(lineWidth); -

157 line.setPosition(QPointF(0, height)); -

158 height += line.height(); -

159 widthUsed = qMax(widthUsed, line.naturalTextWidth()); -

160

}

never executed: end of block

161 textLayout.endLayout(); -

162

return QSizeF(widthUsed, height);

never executed: return QSizeF(widthUsed, height);

163 } -

164 -

165 /*! -

166 \class QItemDelegate -

167 -

168 \brief The QItemDelegate class provides display and editing facilities for -

169 data items from a model. -

170 -

171 \ingroup model-view -

172 \inmodule QtWidgets -

173 -

174 QItemDelegate can be used to provide custom display features and editor -

175 widgets for item views based on QAbstractItemView subclasses. Using a -

176 delegate for this purpose allows the display and editing mechanisms to be -

177 customized and developed independently from the model and view. -

178 -

179 The QItemDelegate class is one of the \l{Model/View Classes} and -

180 is part of Qt's \l{Model/View Programming}{model/view framework}. -

181 Note that QStyledItemDelegate has taken over the job of drawing -

182 Qt's item views. We recommend the use of QStyledItemDelegate when -

183 creating new delegates. -

184 -

185 When displaying items from a custom model in a standard view, it is -

186 often sufficient to simply ensure that the model returns appropriate -

187 data for each of the \l{Qt::ItemDataRole}{roles} that determine the -

188 appearance of items in views. The default delegate used by Qt's -

189 standard views uses this role information to display items in most -

190 of the common forms expected by users. However, it is sometimes -

191 necessary to have even more control over the appearance of items than -

192 the default delegate can provide. -

193 -

194 This class provides default implementations of the functions for -

195 painting item data in a view and editing data from item models. -

196 Default implementations of the paint() and sizeHint() virtual -

197 functions, defined in QAbstractItemDelegate, are provided to -

198 ensure that the delegate implements the correct basic behavior -

199 expected by views. You can reimplement these functions in -

200 subclasses to customize the appearance of items. -

201 -

202 When editing data in an item view, QItemDelegate provides an -

203 editor widget, which is a widget that is placed on top of the view -

204 while editing takes place. Editors are created with a -

205 QItemEditorFactory; a default static instance provided by -

206 QItemEditorFactory is installed on all item delegates. You can set -

207 a custom factory using setItemEditorFactory() or set a new default -

208 factory with QItemEditorFactory::setDefaultFactory(). It is the -

209 data stored in the item model with the Qt::EditRole that is edited. -

210 -

211 Only the standard editing functions for widget-based delegates are -

212 reimplemented here: -

213 -

214 \list -

215 \li createEditor() returns the widget used to change data from the model -

216 and can be reimplemented to customize editing behavior. -

217 \li setEditorData() provides the widget with data to manipulate. -

218 \li updateEditorGeometry() ensures that the editor is displayed correctly -

219 with respect to the item view. -

220 \li setModelData() returns updated data to the model. -

221 \endlist -

222 -

223 The closeEditor() signal indicates that the user has completed editing the data, -

224 and that the editor widget can be destroyed. -

225 -

226 \section1 Standard Roles and Data Types -

227 -

228 The default delegate used by the standard views supplied with Qt -

229 associates each standard role (defined by Qt::ItemDataRole) with certain -

230 data types. Models that return data in these types can influence the -

231 appearance of the delegate as described in the following table. -

232 -

233 \table -

234 \header \li Role \li Accepted Types -

235 \omit -

236 \row \li \l Qt::AccessibleDescriptionRole \li QString -

237 \row \li \l Qt::AccessibleTextRole \li QString -

238 \endomit -

239 \row \li \l Qt::BackgroundRole \li QBrush -

240 \row \li \l Qt::BackgroundColorRole \li QColor (obsolete; use Qt::BackgroundRole instead) -

241 \row \li \l Qt::CheckStateRole \li Qt::CheckState -

242 \row \li \l Qt::DecorationRole \li QIcon, QPixmap and QColor -

243 \row \li \l Qt::DisplayRole \li QString and types with a string representation -

244 \row \li \l Qt::EditRole \li See QItemEditorFactory for details -

245 \row \li \l Qt::FontRole \li QFont -

246 \row \li \l Qt::SizeHintRole \li QSize -

247 \omit -

248 \row \li \l Qt::StatusTipRole \li -

249 \endomit -

250 \row \li \l Qt::TextAlignmentRole \li Qt::Alignment -

251 \row \li \l Qt::ForegroundRole \li QBrush -

252 \row \li \l Qt::TextColorRole \li QColor (obsolete; use Qt::ForegroundRole instead) -

253 \omit -

254 \row \li \l Qt::ToolTipRole -

255 \row \li \l Qt::WhatsThisRole -

256 \endomit -

257 \endtable -

258 -

259 If the default delegate does not allow the level of customization that -

260 you need, either for display purposes or for editing data, it is possible to -

261 subclass QItemDelegate to implement the desired behavior. -

262 -

263 \section1 Subclassing -

264 -

265 When subclassing QItemDelegate to create a delegate that displays items -

266 using a custom renderer, it is important to ensure that the delegate can -

267 render items suitably for all the required states; e.g. selected, -

268 disabled, checked. The documentation for the paint() function contains -

269 some hints to show how this can be achieved. -

270 -

271 You can provide custom editors by using a QItemEditorFactory. The -

272 \l{Color Editor Factory Example} shows how a custom editor can be -

273 made available to delegates with the default item editor -

274 factory. This way, there is no need to subclass QItemDelegate. An -

275 alternative is to reimplement createEditor(), setEditorData(), -

276 setModelData(), and updateEditorGeometry(). This process is -

277 described in the \l{Spin Box Delegate Example}. -

278 -

279 \section1 QStyledItemDelegate vs. QItemDelegate -

280 -

281 Since Qt 4.4, there are two delegate classes: QItemDelegate and -

282 QStyledItemDelegate. However, the default delegate is QStyledItemDelegate. -

283 These two classes are independent alternatives to painting and providing -

284 editors for items in views. The difference between them is that -

285 QStyledItemDelegate uses the current style to paint its items. We therefore -

286 recommend using QStyledItemDelegate as the base class when implementing -

287 custom delegates or when working with Qt style sheets. The code required -

288 for either class should be equal unless the custom delegate needs to use -

289 the style for drawing. -

290 -

291 \sa {Delegate Classes}, QStyledItemDelegate, QAbstractItemDelegate, -

292 {Spin Box Delegate Example}, {Settings Editor Example}, -

293 {Icons Example} -

294 */ -

295 -

296 /*! -

297 Constructs an item delegate with the given \a parent. -

298 */ -

299 -

300 QItemDelegate::QItemDelegate(QObject *parent) -

301 : QAbstractItemDelegate(*new QItemDelegatePrivate(), parent) -

302 { -

303 -

304

}

never executed: end of block

305 -

306 /*! -

307 Destroys the item delegate. -

308 */ -

309 -

310 QItemDelegate::~QItemDelegate() -

311 { -

312 } -

313 -

314 /*! -

315 \property QItemDelegate::clipping -

316 \brief if the delegate should clip the paint events -

317 \since 4.2 -

318 -

319 This property will set the paint clip to the size of the item. -

320 The default value is on. It is useful for cases such -

321 as when images are larger than the size of the item. -

322 */ -

323 -

324 bool QItemDelegate::hasClipping() const -

325 { -

326 Q_D(const QItemDelegate); -

327

return d->clipPainting;

never executed: return d->clipPainting;

328 } -

329 -

330 void QItemDelegate::setClipping(bool clip) -

331 { -

332 Q_D(QItemDelegate); -

333 d->clipPainting = clip; -

334

}

never executed: end of block

335 -

336 QString QItemDelegatePrivate::valueToText(const QVariant &value, const QStyleOptionViewItem &option) const -

337 { -

338

return textForRole(Qt::DisplayRole, value, option.locale, DBL_DIG);

never executed: return textForRole(Qt::DisplayRole, value, option.locale, 10);

339 } -

340 -

341 /*! -

342 Renders the delegate using the given \a painter and style \a option for -

343 the item specified by \a index. -

344 -

345 When reimplementing this function in a subclass, you should update the area -

346 held by the option's \l{QStyleOption::rect}{rect} variable, using the -

347 option's \l{QStyleOption::state}{state} variable to determine the state of -

348 the item to be displayed, and adjust the way it is painted accordingly. -

349 -

350 For example, a selected item may need to be displayed differently to -

351 unselected items, as shown in the following code: -

352 -

353 \snippet itemviews/pixelator/pixeldelegate.cpp 2 -

354 \dots -

355 -

356 After painting, you should ensure that the painter is returned to its -

357 the state it was supplied in when this function was called. For example, -

358 it may be useful to call QPainter::save() before painting and -

359 QPainter::restore() afterwards. -

360 -

361 \sa QStyle::State -

362 */ -

363 void QItemDelegate::paint(QPainter *painter, -

364 const QStyleOptionViewItem &option, -

365 const QModelIndex &index) const -

366 { -

367 Q_D(const QItemDelegate); -

368 Q_ASSERT(index.isValid()); -

369 -

370 QStyleOptionViewItem opt = setOptions(index, option); -

371 -

372 // prepare -

373 painter->save(); -

374

if (d->clipPainting)

d->clipPainting	Description
TRUE	never evaluated
FALSE	never evaluated

375

painter->setClipRect(opt.rect);

never executed: painter->setClipRect(opt.rect);

376 -

377 // get the data and the rectangles -

378 -

379 QVariant value; -

380 -

381 QPixmap pixmap; -

382 QRect decorationRect; -

383 value = index.data(Qt::DecorationRole); -

384

if (value.isValid()) {

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

385 // ### we need the pixmap to call the virtual function -

386 pixmap = decoration(opt, value); -

387

if (value.type() == QVariant::Icon) {

value.type() == QVariant::Icon	Description
TRUE	never evaluated
FALSE	never evaluated

388 d->tmp.icon = qvariant_cast<QIcon>(value); -

389 d->tmp.mode = d->iconMode(option.state); -

390 d->tmp.state = d->iconState(option.state); -

391 const QSize size = d->tmp.icon.actualSize(option.decorationSize, -

392 d->tmp.mode, d->tmp.state); -

393 decorationRect = QRect(QPoint(0, 0), size); -

394

} else {

never executed: end of block

395 d->tmp.icon = QIcon(); -

396 decorationRect = QRect(QPoint(0, 0), pixmap.size()); -

397

}

never executed: end of block

398 } else { -

399 d->tmp.icon = QIcon(); -

400 decorationRect = QRect(); -

401

}

never executed: end of block

402 -

403 QString text; -

404 QRect displayRect; -

405 value = index.data(Qt::DisplayRole); -

406

if (value.isValid() && !value.isNull()) {

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

!value.isNull()	Description
TRUE	never evaluated
FALSE	never evaluated

407 text = d->valueToText(value, opt); -

408 displayRect = textRectangle(painter, d->textLayoutBounds(opt), opt.font, text); -

409

}

never executed: end of block

410 -

411 QRect checkRect; -

412 Qt::CheckState checkState = Qt::Unchecked; -

413 value = index.data(Qt::CheckStateRole); -

414

if (value.isValid()) {

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

415 checkState = static_cast<Qt::CheckState>(value.toInt()); -

416 checkRect = doCheck(opt, opt.rect, value); -

417

}

never executed: end of block

418 -

419 // do the layout -

420 -

421 doLayout(opt, &checkRect, &decorationRect, &displayRect, false); -

422 -

423 // draw the item -

424 -

425 drawBackground(painter, opt, index); -

426 drawCheck(painter, opt, checkRect, checkState); -

427 drawDecoration(painter, opt, decorationRect, pixmap); -

428 drawDisplay(painter, opt, displayRect, text); -

429 drawFocus(painter, opt, displayRect); -

430 -

431 // done -

432 painter->restore(); -

433

}

never executed: end of block

434 -

435 /*! -

436 Returns the size needed by the delegate to display the item -

437 specified by \a index, taking into account the style information -

438 provided by \a option. -

439 -

440 When reimplementing this function, note that in case of text -

441 items, QItemDelegate adds a margin (i.e. 2 * -

442 QStyle::PM_FocusFrameHMargin) to the length of the text. -

443 */ -

444 -

445 QSize QItemDelegate::sizeHint(const QStyleOptionViewItem &option, -

446 const QModelIndex &index) const -

447 { -

448 QVariant value = index.data(Qt::SizeHintRole); -

449

if (value.isValid())

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

450

return qvariant_cast<QSize>(value);

never executed: return qvariant_cast<QSize>(value);

451 QRect decorationRect = rect(option, index, Qt::DecorationRole); -

452 QRect displayRect = rect(option, index, Qt::DisplayRole); -

453 QRect checkRect = rect(option, index, Qt::CheckStateRole); -

454 -

455 doLayout(option, &checkRect, &decorationRect, &displayRect, true); -

456 -

457

return (decorationRect|displayRect|checkRect).size();

never executed: return (decorationRect|displayRect|checkRect).size();

458 } -

459 -

460 /*! -

461 Returns the widget used to edit the item specified by \a index -

462 for editing. The \a parent widget and style \a option are used to -

463 control how the editor widget appears. -

464 -

465 \sa QAbstractItemDelegate::createEditor() -

466 */ -

467 -

468 QWidget *QItemDelegate::createEditor(QWidget *parent, -

469 const QStyleOptionViewItem &, -

470 const QModelIndex &index) const -

471 { -

472 Q_D(const QItemDelegate); -

473

if (!index.isValid())

!index.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

474

return 0;

never executed: return 0;

475 const QItemEditorFactory *factory = d->f; -

476

if (factory == 0)

factory == 0	Description
TRUE	never evaluated
FALSE	never evaluated

477

factory = QItemEditorFactory::defaultFactory();

never executed: factory = QItemEditorFactory::defaultFactory();

478 QWidget *w = factory->createEditor(index.data(Qt::EditRole).userType(), parent); -

479

if (w)

w	Description
TRUE	never evaluated
FALSE	never evaluated

480

w->setFocusPolicy(Qt::WheelFocus);

never executed: w->setFocusPolicy(Qt::WheelFocus);

481

return w;

never executed: return w;

482 } -

483 -

484 /*! -

485 Sets the data to be displayed and edited by the \a editor from the -

486 data model item specified by the model \a index. -

487 -

488 The default implementation stores the data in the \a editor -

489 widget's \l {Qt's Property System} {user property}. -

490 -

491 \sa QMetaProperty::isUser() -

492 */ -

493 -

494 void QItemDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const -

495 { -

496 #ifdef QT_NO_PROPERTIES -

497 Q_UNUSED(editor); -

498 Q_UNUSED(index); -

499 #else -

500 QVariant v = index.data(Qt::EditRole); -

501 QByteArray n = editor->metaObject()->userProperty().name(); -

502 -

503

if (!n.isEmpty()) {

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

504

if (!v.isValid())

!v.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

505

v = QVariant(editor->property(n).userType(), (const void *)0);

never executed: v = QVariant(editor->property(n).userType(), (const void *)0);

506 editor->setProperty(n, v); -

507

}

never executed: end of block

508 #endif -

509

}

never executed: end of block

510 -

511 /*! -

512 Gets data from the \a editor widget and stores it in the specified -

513 \a model at the item \a index. -

514 -

515 The default implementation gets the value to be stored in the data -

516 model from the \a editor widget's \l {Qt's Property System} {user -

517 property}. -

518 -

519 \sa QMetaProperty::isUser() -

520 */ -

521 -

522 void QItemDelegate::setModelData(QWidget *editor, -

523 QAbstractItemModel *model, -

524 const QModelIndex &index) const -

525 { -

526 #ifdef QT_NO_PROPERTIES -

527 Q_UNUSED(model); -

528 Q_UNUSED(editor); -

529 Q_UNUSED(index); -

530 #else -

531 Q_D(const QItemDelegate); -

532 Q_ASSERT(model); -

533 Q_ASSERT(editor); -

534 QByteArray n = editor->metaObject()->userProperty().name(); -

535

if (n.isEmpty())

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

536

n = d->editorFactory()->valuePropertyName(

never executed: n = d->editorFactory()->valuePropertyName( model->data(index, Qt::EditRole).userType());

537

model->data(index, Qt::EditRole).userType());

never executed: n = d->editorFactory()->valuePropertyName( model->data(index, Qt::EditRole).userType());

538

if (!n.isEmpty())

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

539

model->setData(index, editor->property(n), Qt::EditRole);

never executed: model->setData(index, editor->property(n), Qt::EditRole);

540 #endif -

541

}

never executed: end of block

542 -

543 /*! -

544 Updates the \a editor for the item specified by \a index -

545 according to the style \a option given. -

546 */ -

547 -

548 void QItemDelegate::updateEditorGeometry(QWidget *editor, -

549 const QStyleOptionViewItem &option, -

550 const QModelIndex &index) const -

551 { -

552

if (!editor)

!editor	Description
TRUE	never evaluated
FALSE	never evaluated

553

return;

never executed: return;

554 Q_ASSERT(index.isValid()); -

555 QPixmap pixmap = decoration(option, index.data(Qt::DecorationRole)); -

556 QString text = QItemDelegatePrivate::replaceNewLine(index.data(Qt::DisplayRole).toString()); -

557 QRect pixmapRect = QRect(QPoint(0, 0), option.decorationSize).intersected(pixmap.rect()); -

558 QRect textRect = textRectangle(0, option.rect, option.font, text); -

559 QRect checkRect = doCheck(option, textRect, index.data(Qt::CheckStateRole)); -

560 QStyleOptionViewItem opt = option; -

561 opt.showDecorationSelected = true; // let the editor take up all available space -

562 doLayout(opt, &checkRect, &pixmapRect, &textRect, false); -

563 editor->setGeometry(textRect); -

564

}

never executed: end of block

565 -

566 /*! -

567 Returns the editor factory used by the item delegate. -

568 If no editor factory is set, the function will return null. -

569 -

570 \sa setItemEditorFactory() -

571 */ -

572 QItemEditorFactory *QItemDelegate::itemEditorFactory() const -

573 { -

574 Q_D(const QItemDelegate); -

575

return d->f;

never executed: return d->f;

576 } -

577 -

578 /*! -

579 Sets the editor factory to be used by the item delegate to be the \a factory -

580 specified. If no editor factory is set, the item delegate will use the -

581 default editor factory. -

582 -

583 \sa itemEditorFactory() -

584 */ -

585 void QItemDelegate::setItemEditorFactory(QItemEditorFactory *factory) -

586 { -

587 Q_D(QItemDelegate); -

588 d->f = factory; -

589

}

never executed: end of block

590 -

591 /*! -

592 Renders the item view \a text within the rectangle specified by \a rect -

593 using the given \a painter and style \a option. -

594 */ -

595 -

596 void QItemDelegate::drawDisplay(QPainter *painter, const QStyleOptionViewItem &option, -

597 const QRect &rect, const QString &text) const -

598 { -

599 Q_D(const QItemDelegate); -

600 -

601

QPalette::ColorGroup cg = option.state & QStyle::State_Enabled

option.state &...:State_Enabled	Description
TRUE	never evaluated
FALSE	never evaluated

602 ? QPalette::Normal : QPalette::Disabled; -

603

if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))

cg == QPalette::Normal	Description
TRUE	never evaluated
FALSE	never evaluated

!(option.state...:State_Active)	Description
TRUE	never evaluated
FALSE	never evaluated

604

cg = QPalette::Inactive;

never executed: cg = QPalette::Inactive;

605

if (option.state & QStyle::State_Selected) {

option.state &...State_Selected	Description
TRUE	never evaluated
FALSE	never evaluated

606 painter->fillRect(rect, option.palette.brush(cg, QPalette::Highlight)); -

607 painter->setPen(option.palette.color(cg, QPalette::HighlightedText)); -

608

} else {

never executed: end of block

609 painter->setPen(option.palette.color(cg, QPalette::Text)); -

610

}

never executed: end of block

611 -

612

if (text.isEmpty())

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

613

return;

never executed: return;

614 -

615

if (option.state & QStyle::State_Editing) {

option.state &...:State_Editing	Description
TRUE	never evaluated
FALSE	never evaluated

616 painter->save(); -

617 painter->setPen(option.palette.color(cg, QPalette::Text)); -

618 painter->drawRect(rect.adjusted(0, 0, -1, -1)); -

619 painter->restore(); -

620

}

never executed: end of block

621 -

622 const QStyleOptionViewItem opt = option; -

623 -

624 const QWidget *widget = d->widget(option); -

625

QStyle *style = widget ? widget->style() : QApplication::style();

widget	Description
TRUE	never evaluated
FALSE	never evaluated

626 const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1; -

627 QRect textRect = rect.adjusted(textMargin, 0, -textMargin, 0); // remove width padding -

628 const bool wrapText = opt.features & QStyleOptionViewItem::WrapText; -

629 d->textOption.setWrapMode(wrapText ? QTextOption::WordWrap : QTextOption::ManualWrap); -

630 d->textOption.setTextDirection(option.direction); -

631 d->textOption.setAlignment(QStyle::visualAlignment(option.direction, option.displayAlignment)); -

632 d->textLayout.setTextOption(d->textOption); -

633 d->textLayout.setFont(option.font); -

634 d->textLayout.setText(QItemDelegatePrivate::replaceNewLine(text)); -

635 -

636 QSizeF textLayoutSize = d->doTextLayout(textRect.width()); -

637 -

638

if (textRect.width() < textLayoutSize.width()

textRect.width...utSize.width()	Description
TRUE	never evaluated
FALSE	never evaluated

639

|| textRect.height() < textLayoutSize.height()) {

textRect.heigh...tSize.height()	Description
TRUE	never evaluated
FALSE	never evaluated

640 QString elided; -

641 int start = 0; -

642 int end = text.indexOf(QChar::LineSeparator, start); -

643

if (end == -1) {

end == -1	Description
TRUE	never evaluated
FALSE	never evaluated

644 elided += option.fontMetrics.elidedText(text, option.textElideMode, textRect.width()); -

645

} else {

never executed: end of block

646

while (end != -1) {

end != -1	Description
TRUE	never evaluated
FALSE	never evaluated

647 elided += option.fontMetrics.elidedText(text.mid(start, end - start), -

648 option.textElideMode, textRect.width()); -

649 elided += QChar::LineSeparator; -

650 start = end + 1; -

651 end = text.indexOf(QChar::LineSeparator, start); -

652

}

never executed: end of block

653 //let's add the last line (after the last QChar::LineSeparator) -

654 elided += option.fontMetrics.elidedText(text.mid(start), -

655 option.textElideMode, textRect.width()); -

656

}

never executed: end of block

657 d->textLayout.setText(elided); -

658 textLayoutSize = d->doTextLayout(textRect.width()); -

659

}

never executed: end of block

660 -

661 const QSize layoutSize(textRect.width(), int(textLayoutSize.height())); -

662 const QRect layoutRect = QStyle::alignedRect(option.direction, option.displayAlignment, -

663 layoutSize, textRect); -

664 // if we still overflow even after eliding the text, enable clipping -

665

if (!hasClipping() && (textRect.width() < textLayoutSize.width()

!hasClipping()	Description
TRUE	never evaluated
FALSE	never evaluated

textRect.width...utSize.width()	Description
TRUE	never evaluated
FALSE	never evaluated

666

|| textRect.height() < textLayoutSize.height())) {

textRect.heigh...tSize.height()	Description
TRUE	never evaluated
FALSE	never evaluated

667 painter->save(); -

668 painter->setClipRect(layoutRect); -

669 d->textLayout.draw(painter, layoutRect.topLeft(), QVector<QTextLayout::FormatRange>(), layoutRect); -

670 painter->restore(); -

671

} else {

never executed: end of block

672 d->textLayout.draw(painter, layoutRect.topLeft(), QVector<QTextLayout::FormatRange>(), layoutRect); -

673

}

never executed: end of block

674 } -

675 -

676 /*! -

677 Renders the decoration \a pixmap within the rectangle specified by -

678 \a rect using the given \a painter and style \a option. -

679 */ -

680 void QItemDelegate::drawDecoration(QPainter *painter, const QStyleOptionViewItem &option, -

681 const QRect &rect, const QPixmap &pixmap) const -

682 { -

683 Q_D(const QItemDelegate); -

684 // if we have an icon, we ignore the pixmap -

685

if (!d->tmp.icon.isNull()) {

!d->tmp.icon.isNull()	Description
TRUE	never evaluated
FALSE	never evaluated

686 d->tmp.icon.paint(painter, rect, option.decorationAlignment, -

687 d->tmp.mode, d->tmp.state); -

688

return;

never executed: return;

689 } -

690 -

691

if (pixmap.isNull() || !rect.isValid())

pixmap.isNull()	Description
TRUE	never evaluated
FALSE	never evaluated

!rect.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

692

return;

never executed: return;

693 QPoint p = QStyle::alignedRect(option.direction, option.decorationAlignment, -

694 pixmap.size(), rect).topLeft(); -

695

if (option.state & QStyle::State_Selected) {

option.state &...State_Selected	Description
TRUE	never evaluated
FALSE	never evaluated

696 QPixmap *pm = selected(pixmap, option.palette, option.state & QStyle::State_Enabled); -

697 painter->drawPixmap(p, *pm); -

698

} else {

never executed: end of block

699 painter->drawPixmap(p, pixmap); -

700

}

never executed: end of block

701 } -

702 -

703 /*! -

704 Renders the region within the rectangle specified by \a rect, indicating -

705 that it has the focus, using the given \a painter and style \a option. -

706 */ -

707 -

708 void QItemDelegate::drawFocus(QPainter *painter, -

709 const QStyleOptionViewItem &option, -

710 const QRect &rect) const -

711 { -

712 Q_D(const QItemDelegate); -

713

if ((option.state & QStyle::State_HasFocus) == 0 || !rect.isValid())

(option.state ...HasFocus) == 0	Description
TRUE	never evaluated
FALSE	never evaluated

!rect.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

714

return;

never executed: return;

715 QStyleOptionFocusRect o; -

716 o.QStyleOption::operator=(option); -

717 o.rect = rect; -

718 o.state |= QStyle::State_KeyboardFocusChange; -

719 o.state |= QStyle::State_Item; -

720

QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled)

(option.state ...State_Enabled)	Description
TRUE	never evaluated
FALSE	never evaluated

721 ? QPalette::Normal : QPalette::Disabled; -

722 o.backgroundColor = option.palette.color(cg, (option.state & QStyle::State_Selected) -

723 ? QPalette::Highlight : QPalette::Window); -

724 const QWidget *widget = d->widget(option); -

725

QStyle *style = widget ? widget->style() : QApplication::style();

widget	Description
TRUE	never evaluated
FALSE	never evaluated

726 style->drawPrimitive(QStyle::PE_FrameFocusRect, &o, painter, widget); -

727

}

never executed: end of block

728 -

729 /*! -

730 Renders a check indicator within the rectangle specified by \a -

731 rect, using the given \a painter and style \a option, using the -

732 given \a state. -

733 */ -

734 -

735 void QItemDelegate::drawCheck(QPainter *painter, -

736 const QStyleOptionViewItem &option, -

737 const QRect &rect, Qt::CheckState state) const -

738 { -

739 Q_D(const QItemDelegate); -

740

if (!rect.isValid())

!rect.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

741

return;

never executed: return;

742 -

743 QStyleOptionViewItem opt(option); -

744 opt.rect = rect; -

745 opt.state = opt.state & ~QStyle::State_HasFocus; -

746 -

747 switch (state) { -

748

case Qt::Unchecked:

never executed: case Qt::Unchecked:

749 opt.state |= QStyle::State_Off; -

750

break;

never executed: break;

751

case Qt::PartiallyChecked:

never executed: case Qt::PartiallyChecked:

752 opt.state |= QStyle::State_NoChange; -

753

break;

never executed: break;

754

case Qt::Checked:

never executed: case Qt::Checked:

755 opt.state |= QStyle::State_On; -

756

break;

never executed: break;

757 } -

758 -

759 const QWidget *widget = d->widget(option); -

760

QStyle *style = widget ? widget->style() : QApplication::style();

widget	Description
TRUE	never evaluated
FALSE	never evaluated

761 style->drawPrimitive(QStyle::PE_IndicatorViewItemCheck, &opt, painter, widget); -

762

}

never executed: end of block

763 -

764 /*! -

765 \since 4.2 -

766 -

767 Renders the item background for the given \a index, -

768 using the given \a painter and style \a option. -

769 */ -

770 -

771 void QItemDelegate::drawBackground(QPainter *painter, -

772 const QStyleOptionViewItem &option, -

773 const QModelIndex &index) const -

774 { -

775

if (option.showDecorationSelected && (option.state & QStyle::State_Selected)) {

option.showDecorationSelected	Description
TRUE	never evaluated
FALSE	never evaluated

(option.state ...tate_Selected)	Description
TRUE	never evaluated
FALSE	never evaluated

776

QPalette::ColorGroup cg = option.state & QStyle::State_Enabled

option.state &...:State_Enabled	Description
TRUE	never evaluated
FALSE	never evaluated

777 ? QPalette::Normal : QPalette::Disabled; -

778

if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))

cg == QPalette::Normal	Description
TRUE	never evaluated
FALSE	never evaluated

!(option.state...:State_Active)	Description
TRUE	never evaluated
FALSE	never evaluated

779

cg = QPalette::Inactive;

never executed: cg = QPalette::Inactive;

780 -

781 painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight)); -

782

} else {

never executed: end of block

783 QVariant value = index.data(Qt::BackgroundRole); -

784

if (value.canConvert<QBrush>()) {

value.canConvert<QBrush>()	Description
TRUE	never evaluated
FALSE	never evaluated

785 QPointF oldBO = painter->brushOrigin(); -

786 painter->setBrushOrigin(option.rect.topLeft()); -

787 painter->fillRect(option.rect, qvariant_cast<QBrush>(value)); -

788 painter->setBrushOrigin(oldBO); -

789

}

never executed: end of block

790

}

never executed: end of block

791 } -

792 -

793 -

794 /*! -

795 \internal -

796 -

797 Code duplicated in QCommonStylePrivate::viewItemLayout -

798 */ -

799 -

800 void QItemDelegate::doLayout(const QStyleOptionViewItem &option, -

801 QRect *checkRect, QRect *pixmapRect, QRect *textRect, -

802 bool hint) const -

803 { -

804 Q_ASSERT(checkRect && pixmapRect && textRect); -

805 Q_D(const QItemDelegate); -

806 const QWidget *widget = d->widget(option); -

807

QStyle *style = widget ? widget->style() : QApplication::style();

widget	Description
TRUE	never evaluated
FALSE	never evaluated

808 const bool hasCheck = checkRect->isValid(); -

809 const bool hasPixmap = pixmapRect->isValid(); -

810 const bool hasText = textRect->isValid(); -

811

const int textMargin = hasText ? style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1 : 0;

hasText	Description
TRUE	never evaluated
FALSE	never evaluated

812

const int pixmapMargin = hasPixmap ? style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1 : 0;

hasPixmap	Description
TRUE	never evaluated
FALSE	never evaluated

813

const int checkMargin = hasCheck ? style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1 : 0;

hasCheck	Description
TRUE	never evaluated
FALSE	never evaluated

814 int x = option.rect.left(); -

815 int y = option.rect.top(); -

816 int w, h; -

817 -

818 textRect->adjust(-textMargin, 0, textMargin, 0); // add width padding -

819

if (textRect->height() == 0 && (!hasPixmap || !hint)) {

textRect->height() == 0	Description
TRUE	never evaluated
FALSE	never evaluated

!hasPixmap	Description
TRUE	never evaluated
FALSE	never evaluated

!hint	Description
TRUE	never evaluated
FALSE	never evaluated

820 //if there is no text, we still want to have a decent height for the item sizeHint and the editor size -

821 textRect->setHeight(option.fontMetrics.height()); -

822

}

never executed: end of block

823 -

824 QSize pm(0, 0); -

825

if (hasPixmap) {

hasPixmap	Description
TRUE	never evaluated
FALSE	never evaluated

826 pm = pixmapRect->size(); -

827 pm.rwidth() += 2 * pixmapMargin; -

828

}

never executed: end of block

829

if (hint) {

hint	Description
TRUE	never evaluated
FALSE	never evaluated

830 h = qMax(checkRect->height(), qMax(textRect->height(), pm.height())); -

831

if (option.decorationPosition == QStyleOptionViewItem::Left

option.decorat...ViewItem::Left	Description
TRUE	never evaluated
FALSE	never evaluated

832

|| option.decorationPosition == QStyleOptionViewItem::Right) {

option.decorat...iewItem::Right	Description
TRUE	never evaluated
FALSE	never evaluated

833 w = textRect->width() + pm.width(); -

834

} else {

never executed: end of block

835 w = qMax(textRect->width(), pm.width()); -

836

}

never executed: end of block

837 } else { -

838 w = option.rect.width(); -

839 h = option.rect.height(); -

840

}

never executed: end of block

841 -

842 int cw = 0; -

843 QRect check; -

844

if (hasCheck) {

hasCheck	Description
TRUE	never evaluated
FALSE	never evaluated

845 cw = checkRect->width() + 2 * checkMargin; -

846

if (hint) w += cw;

never executed: w += cw;

hint	Description
TRUE	never evaluated
FALSE	never evaluated

847

if (option.direction == Qt::RightToLeft) {

option.directi...t::RightToLeft	Description
TRUE	never evaluated
FALSE	never evaluated

848 check.setRect(x + w - cw, y, cw, h); -

849

} else {

never executed: end of block

850 check.setRect(x + checkMargin, y, cw, h); -

851

}

never executed: end of block

852 } -

853 -

854 // at this point w should be the *total* width -

855 -

856 QRect display; -

857 QRect decoration; -

858 switch (option.decorationPosition) { -

859

case QStyleOptionViewItem::Top: {

never executed: case QStyleOptionViewItem::Top:

860

if (hasPixmap)

hasPixmap	Description
TRUE	never evaluated
FALSE	never evaluated

861

pm.setHeight(pm.height() + pixmapMargin); // add space

never executed: pm.setHeight(pm.height() + pixmapMargin);

862

h = hint ? textRect->height() : h - pm.height();

hint	Description
TRUE	never evaluated
FALSE	never evaluated

863 -

864

if (option.direction == Qt::RightToLeft) {

option.directi...t::RightToLeft	Description
TRUE	never evaluated
FALSE	never evaluated

865 decoration.setRect(x, y, w - cw, pm.height()); -

866 display.setRect(x, y + pm.height(), w - cw, h); -

867

} else {

never executed: end of block

868 decoration.setRect(x + cw, y, w - cw, pm.height()); -

869 display.setRect(x + cw, y + pm.height(), w - cw, h); -

870

}

never executed: end of block

871

break; }

never executed: break;

872

case QStyleOptionViewItem::Bottom: {

never executed: case QStyleOptionViewItem::Bottom:

873

if (hasText)

hasText	Description
TRUE	never evaluated
FALSE	never evaluated

874

textRect->setHeight(textRect->height() + textMargin); // add space

never executed: textRect->setHeight(textRect->height() + textMargin);

875

h = hint ? textRect->height() + pm.height() : h;

hint	Description
TRUE	never evaluated
FALSE	never evaluated

876 -

877

if (option.direction == Qt::RightToLeft) {

option.directi...t::RightToLeft	Description
TRUE	never evaluated
FALSE	never evaluated

878 display.setRect(x, y, w - cw, textRect->height()); -

879 decoration.setRect(x, y + textRect->height(), w - cw, h - textRect->height()); -

880

} else {

never executed: end of block

881 display.setRect(x + cw, y, w - cw, textRect->height()); -

882 decoration.setRect(x + cw, y + textRect->height(), w - cw, h - textRect->height()); -

883

}

never executed: end of block

884

break; }

never executed: break;

885

case QStyleOptionViewItem::Left: {

never executed: case QStyleOptionViewItem::Left:

886

if (option.direction == Qt::LeftToRight) {

option.directi...t::LeftToRight	Description
TRUE	never evaluated
FALSE	never evaluated

887 decoration.setRect(x + cw, y, pm.width(), h); -

888 display.setRect(decoration.right() + 1, y, w - pm.width() - cw, h); -

889

} else {

never executed: end of block

890 display.setRect(x, y, w - pm.width() - cw, h); -

891 decoration.setRect(display.right() + 1, y, pm.width(), h); -

892

}

never executed: end of block

893

break; }

never executed: break;

894

case QStyleOptionViewItem::Right: {

never executed: case QStyleOptionViewItem::Right:

895

if (option.direction == Qt::LeftToRight) {

option.directi...t::LeftToRight	Description
TRUE	never evaluated
FALSE	never evaluated

896 display.setRect(x + cw, y, w - pm.width() - cw, h); -

897 decoration.setRect(display.right() + 1, y, pm.width(), h); -

898

} else {

never executed: end of block

899 decoration.setRect(x, y, pm.width(), h); -

900 display.setRect(decoration.right() + 1, y, w - pm.width() - cw, h); -

901

}

never executed: end of block

902

break; }

never executed: break;

903

default:

never executed: default:

904 qWarning("doLayout: decoration position is invalid"); -

905 decoration = *pixmapRect; -

906

break;

never executed: break;

907 } -

908 -

909

if (!hint) { // we only need to do the internal layout if we are going to paint

!hint	Description
TRUE	never evaluated
FALSE	never evaluated

910 *checkRect = QStyle::alignedRect(option.direction, Qt::AlignCenter, -

911 checkRect->size(), check); -

912 *pixmapRect = QStyle::alignedRect(option.direction, option.decorationAlignment, -

913 pixmapRect->size(), decoration); -

914 // the text takes up all available space, unless the decoration is not shown as selected -

915

if (option.showDecorationSelected)

option.showDecorationSelected	Description
TRUE	never evaluated
FALSE	never evaluated

916

*textRect = display;

never executed: *textRect = display;

917 else -

918

*textRect = QStyle::alignedRect(option.direction, option.displayAlignment,

never executed:

*textRect = QStyle::alignedRect(option.direction, option.displayAlignment, textRect->size().boundedTo(display.size()), display);

919

textRect->size().boundedTo(display.size()), display);

never executed:

*textRect = QStyle::alignedRect(option.direction, option.displayAlignment, textRect->size().boundedTo(display.size()), display);

920 } else { -

921 *checkRect = check; -

922 *pixmapRect = decoration; -

923 *textRect = display; -

924

}

never executed: end of block

925 } -

926 -

927 /*! -

928 \internal -

929 -

930 Returns the pixmap used to decorate the root of the item view. -

931 The style \a option controls the appearance of the root; the \a variant -

932 refers to the data associated with an item. -

933 */ -

934 -

935 QPixmap QItemDelegate::decoration(const QStyleOptionViewItem &option, const QVariant &variant) const -

936 { -

937 Q_D(const QItemDelegate); -

938 switch (variant.type()) { -

939

case QVariant::Icon: {

never executed: case QVariant::Icon:

940 QIcon::Mode mode = d->iconMode(option.state); -

941 QIcon::State state = d->iconState(option.state); -

942

return qvariant_cast<QIcon>(variant).pixmap(option.decorationSize, mode, state); }

never executed: return qvariant_cast<QIcon>(variant).pixmap(option.decorationSize, mode, state);

943

case QVariant::Color: {

never executed: case QVariant::Color:

944 static QPixmap pixmap(option.decorationSize); -

945 pixmap.fill(qvariant_cast<QColor>(variant)); -

946

return pixmap; }

never executed: return pixmap;

947

default:

never executed: default:

948

break;

never executed: break;

949 } -

950 -

951

return qvariant_cast<QPixmap>(variant);

never executed: return qvariant_cast<QPixmap>(variant);

952 } -

953 -

954 // hacky but faster version of "QString::asprintf("%d-%d", i, enabled)" -

955 static QString qPixmapSerial(quint64 i, bool enabled) -

956 { -

957 ushort arr[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', ushort('0' + enabled) }; -

958 ushort *ptr = &arr[16]; -

959 -

960

while (i > 0) {

i > 0	Description
TRUE	never evaluated
FALSE	never evaluated

961 // hey - it's our internal representation, so use the ascii character after '9' -

962 // instead of 'a' for hex -

963 *(--ptr) = '0' + i % 16; -

964 i >>= 4; -

965

}

never executed: end of block

966 -

967

return QString((const QChar *)ptr, int(&arr[sizeof(arr) / sizeof(ushort)] - ptr));

never executed: return QString((const QChar *)ptr, int(&arr[sizeof(arr) / sizeof(ushort)] - ptr));

968 } -

969 -

970 /*! -

971 \internal -

972 Returns the selected version of the given \a pixmap using the given \a palette. -

973 The \a enabled argument decides whether the normal or disabled highlight color of -

974 the palette is used. -

975 */ -

976 QPixmap *QItemDelegate::selected(const QPixmap &pixmap, const QPalette &palette, bool enabled) const -

977 { -

978 QString key = qPixmapSerial(pixmap.cacheKey(), enabled); -

979 QPixmap *pm = QPixmapCache::find(key); -

980

if (!pm) {

!pm	Description
TRUE	never evaluated
FALSE	never evaluated

981 QImage img = pixmap.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied); -

982 -

983 QColor color = palette.color(enabled ? QPalette::Normal : QPalette::Disabled, -

984 QPalette::Highlight); -

985 color.setAlphaF((qreal)0.3); -

986 -

987 QPainter painter(&img); -

988 painter.setCompositionMode(QPainter::CompositionMode_SourceAtop); -

989 painter.fillRect(0, 0, img.width(), img.height(), color); -

990 painter.end(); -

991 -

992 QPixmap selected = QPixmap(QPixmap::fromImage(img)); -

993 int n = (img.byteCount() >> 10) + 1; -

994

if (QPixmapCache::cacheLimit() < n)

QPixmapCache::cacheLimit() < n	Description
TRUE	never evaluated
FALSE	never evaluated

995

QPixmapCache::setCacheLimit(n);

never executed: QPixmapCache::setCacheLimit(n);

996 -

997 QPixmapCache::insert(key, selected); -

998 pm = QPixmapCache::find(key); -

999

}

never executed: end of block

1000

return pm;

never executed: return pm;

1001 } -

1002 -

1003 /*! -

1004 \internal -

1005 */ -

1006 -

1007 QRect QItemDelegate::rect(const QStyleOptionViewItem &option, -

1008 const QModelIndex &index, int role) const -

1009 { -

1010 Q_D(const QItemDelegate); -

1011 QVariant value = index.data(role); -

1012

if (role == Qt::CheckStateRole)

role == Qt::CheckStateRole	Description
TRUE	never evaluated
FALSE	never evaluated

1013

return doCheck(option, option.rect, value);

never executed: return doCheck(option, option.rect, value);

1014

if (value.isValid() && !value.isNull()) {

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

!value.isNull()	Description
TRUE	never evaluated
FALSE	never evaluated

1015 switch (value.type()) { -

1016

case QVariant::Invalid:

never executed: case QVariant::Invalid:

1017

break;

never executed: break;

1018

case QVariant::Pixmap: {

never executed: case QVariant::Pixmap:

1019 const QPixmap &pixmap = qvariant_cast<QPixmap>(value); -

1020

return QRect(QPoint(0, 0), pixmap.size() / pixmap.devicePixelRatio() ); }

never executed: return QRect(QPoint(0, 0), pixmap.size() / pixmap.devicePixelRatio() );

1021

case QVariant::Image: {

never executed: case QVariant::Image:

1022 const QImage &image = qvariant_cast<QImage>(value); -

1023

return QRect(QPoint(0, 0), image.size() / image.devicePixelRatio() ); }

never executed: return QRect(QPoint(0, 0), image.size() / image.devicePixelRatio() );

1024

case QVariant::Icon: {

never executed: case QVariant::Icon:

1025 QIcon::Mode mode = d->iconMode(option.state); -

1026 QIcon::State state = d->iconState(option.state); -

1027 QIcon icon = qvariant_cast<QIcon>(value); -

1028 QSize size = icon.actualSize(option.decorationSize, mode, state); -

1029

return QRect(QPoint(0, 0), size); }

never executed: return QRect(QPoint(0, 0), size);

1030

case QVariant::Color:

never executed: case QVariant::Color:

1031

return QRect(QPoint(0, 0), option.decorationSize);

never executed: return QRect(QPoint(0, 0), option.decorationSize);

1032

case QVariant::String:

never executed: case QVariant::String:

1033

default: {

never executed: default:

1034 const QString text = d->valueToText(value, option); -

1035 value = index.data(Qt::FontRole); -

1036 QFont fnt = qvariant_cast<QFont>(value).resolve(option.font); -

1037

return textRectangle(0, d->textLayoutBounds(option), fnt, text); }

never executed: return textRectangle(0, d->textLayoutBounds(option), fnt, text);

1038 } -

1039 } -

1040

return QRect();

never executed: return QRect();

1041 } -

1042 -

1043 /*! -

1044 \internal -

1045 */ -

1046 QRect QItemDelegate::doCheck(const QStyleOptionViewItem &option, -

1047 const QRect &bounding, const QVariant &value) const -

1048 { -

1049

if (value.isValid()) {

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

1050 Q_D(const QItemDelegate); -

1051 QStyleOptionButton opt; -

1052 opt.QStyleOption::operator=(option); -

1053 opt.rect = bounding; -

1054 const QWidget *widget = d->widget(option); // cast -

1055

QStyle *style = widget ? widget->style() : QApplication::style();

widget	Description
TRUE	never evaluated
FALSE	never evaluated

1056

return style->subElementRect(QStyle::SE_ViewItemCheckIndicator, &opt, widget);

never executed: return style->subElementRect(QStyle::SE_ViewItemCheckIndicator, &opt, widget);

1057 } -

1058

return QRect();

never executed: return QRect();

1059 } -

1060 -

1061 /*! -

1062 \internal -

1063 */ -

1064 QRect QItemDelegate::textRectangle(QPainter * /*painter*/, const QRect &rect, -

1065 const QFont &font, const QString &text) const -

1066 { -

1067 Q_D(const QItemDelegate); -

1068 d->textOption.setWrapMode(QTextOption::WordWrap); -

1069 d->textLayout.setTextOption(d->textOption); -

1070 d->textLayout.setFont(font); -

1071 d->textLayout.setText(QItemDelegatePrivate::replaceNewLine(text)); -

1072 QSizeF fpSize = d->doTextLayout(rect.width()); -

1073 const QSize size = QSize(qCeil(fpSize.width()), qCeil(fpSize.height())); -

1074 // ###: textRectangle should take style option as argument -

1075 const int textMargin = QApplication::style()->pixelMetric(QStyle::PM_FocusFrameHMargin) + 1; -

1076

return QRect(0, 0, size.width() + 2 * textMargin, size.height());

never executed: return QRect(0, 0, size.width() + 2 * textMargin, size.height());

1077 } -

1078 -

1079 /*! -

1080 \fn bool QItemDelegate::eventFilter(QObject *editor, QEvent *event) -

1081 -

1082 Returns \c true if the given \a editor is a valid QWidget and the -

1083 given \a event is handled; otherwise returns \c false. The following -

1084 key press events are handled by default: -

1085 -

1086 \list -

1087 \li \uicontrol Tab -

1088 \li \uicontrol Backtab -

1089 \li \uicontrol Enter -

1090 \li \uicontrol Return -

1091 \li \uicontrol Esc -

1092 \endlist -

1093 -

1094 In the case of \uicontrol Tab, \uicontrol Backtab, \uicontrol Enter and \uicontrol Return -

1095 key press events, the \a editor's data is comitted to the model -

1096 and the editor is closed. If the \a event is a \uicontrol Tab key press -

1097 the view will open an editor on the next item in the -

1098 view. Likewise, if the \a event is a \uicontrol Backtab key press the -

1099 view will open an editor on the \e previous item in the view. -

1100 -

1101 If the event is a \uicontrol Esc key press event, the \a editor is -

1102 closed \e without committing its data. -

1103 -

1104 \sa commitData(), closeEditor() -

1105 */ -

1106 -

1107 bool QItemDelegate::eventFilter(QObject *object, QEvent *event) -

1108 { -

1109 Q_D(QItemDelegate); -

1110

return d->editorEventFilter(object, event);

never executed: return d->editorEventFilter(object, event);

1111 } -

1112 -

1113 /*! -

1114 \reimp -

1115 */ -

1116 -

1117 bool QItemDelegate::editorEvent(QEvent *event, -

1118 QAbstractItemModel *model, -

1119 const QStyleOptionViewItem &option, -

1120 const QModelIndex &index) -

1121 { -

1122 Q_ASSERT(event); -

1123 Q_ASSERT(model); -

1124 -

1125 // make sure that the item is checkable -

1126 Qt::ItemFlags flags = model->flags(index); -

1127

if (!(flags & Qt::ItemIsUserCheckable) || !(option.state & QStyle::State_Enabled)

!(flags & Qt::...UserCheckable)	Description
TRUE	never evaluated
FALSE	never evaluated

!(option.state...State_Enabled)	Description
TRUE	never evaluated
FALSE	never evaluated

1128

|| !(flags & Qt::ItemIsEnabled))

!(flags & Qt::ItemIsEnabled)	Description
TRUE	never evaluated
FALSE	never evaluated

1129

return false;

never executed: return false;

1130 -

1131 // make sure that we have a check state -

1132 QVariant value = index.data(Qt::CheckStateRole); -

1133

if (!value.isValid())

!value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

1134

return false;

never executed: return false;

1135 -

1136 // make sure that we have the right event type -

1137

if ((event->type() == QEvent::MouseButtonRelease)

(event->type()...ButtonRelease)	Description
TRUE	never evaluated
FALSE	never evaluated

1138

|| (event->type() == QEvent::MouseButtonDblClick)

(event->type()...uttonDblClick)	Description
TRUE	never evaluated
FALSE	never evaluated

1139

|| (event->type() == QEvent::MouseButtonPress)) {

(event->type()...seButtonPress)	Description
TRUE	never evaluated
FALSE	never evaluated

1140 QRect checkRect = doCheck(option, option.rect, Qt::Checked); -

1141 QRect emptyRect; -

1142 doLayout(option, &checkRect, &emptyRect, &emptyRect, false); -

1143 QMouseEvent *me = static_cast<QMouseEvent*>(event); -

1144

if (me->button() != Qt::LeftButton || !checkRect.contains(me->pos()))

me->button() != Qt::LeftButton	Description
TRUE	never evaluated
FALSE	never evaluated

!checkRect.contains(me->pos())	Description
TRUE	never evaluated
FALSE	never evaluated

1145

return false;

never executed: return false;

1146 -

1147 // eat the double click events inside the check rect -

1148

if ((event->type() == QEvent::MouseButtonPress)

(event->type()...seButtonPress)	Description
TRUE	never evaluated
FALSE	never evaluated

1149

|| (event->type() == QEvent::MouseButtonDblClick))

(event->type()...uttonDblClick)	Description
TRUE	never evaluated
FALSE	never evaluated

1150

return true;

never executed: return true;

1151 -

1152

} else if (event->type() == QEvent::KeyPress) {

never executed: end of block

event->type() ...vent::KeyPress	Description
TRUE	never evaluated
FALSE	never evaluated

1153

if (static_cast<QKeyEvent*>(event)->key() != Qt::Key_Space

static_cast<QK... Qt::Key_Space	Description
TRUE	never evaluated
FALSE	never evaluated

1154

&& static_cast<QKeyEvent*>(event)->key() != Qt::Key_Select)

static_cast<QK...Qt::Key_Select	Description
TRUE	never evaluated
FALSE	never evaluated

1155

return false;

never executed: return false;

1156

} else {

never executed: end of block

1157

return false;

never executed: return false;

1158 } -

1159 -

1160 Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt()); -

1161

if (flags & Qt::ItemIsUserTristate)

flags & Qt::ItemIsUserTristate	Description
TRUE	never evaluated
FALSE	never evaluated

1162

state = ((Qt::CheckState)((state + 1) % 3));

never executed: state = ((Qt::CheckState)((state + 1) % 3));

1163 else -

1164

state = (state == Qt::Checked) ? Qt::Unchecked : Qt::Checked;

never executed: state = (state == Qt::Checked) ? Qt::Unchecked : Qt::Checked;

(state == Qt::Checked)	Description
TRUE	never evaluated
FALSE	never evaluated

1165

return model->setData(index, state, Qt::CheckStateRole);

never executed: return model->setData(index, state, Qt::CheckStateRole);

1166 } -

1167 -

1168 /*! -

1169 \internal -

1170 */ -

1171 -

1172 QStyleOptionViewItem QItemDelegate::setOptions(const QModelIndex &index, -

1173 const QStyleOptionViewItem &option) const -

1174 { -

1175 QStyleOptionViewItem opt = option; -

1176 -

1177 // set font -

1178 QVariant value = index.data(Qt::FontRole); -

1179

if (value.isValid()){

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

1180 opt.font = qvariant_cast<QFont>(value).resolve(opt.font); -

1181 opt.fontMetrics = QFontMetrics(opt.font); -

1182

}

never executed: end of block

1183 -

1184 // set text alignment -

1185 value = index.data(Qt::TextAlignmentRole); -

1186

if (value.isValid())

value.isValid()	Description
TRUE	never evaluated
FALSE	never evaluated

1187

opt.displayAlignment = Qt::Alignment(value.toInt());

never executed: opt.displayAlignment = Qt::Alignment(value.toInt());

1188 -

1189 // set foreground brush -

1190 value = index.data(Qt::ForegroundRole); -

1191

if (value.canConvert<QBrush>())

value.canConvert<QBrush>()	Description
TRUE	never evaluated
FALSE	never evaluated

1192

opt.palette.setBrush(QPalette::Text, qvariant_cast<QBrush>(value));

never executed: opt.palette.setBrush(QPalette::Text, qvariant_cast<QBrush>(value));

1193 -

1194 // disable style animations for checkboxes etc. within itemviews (QTBUG-30146) -

1195 opt.styleObject = 0; -

1196 -

1197

return opt;

never executed: return opt;

1198 } -

1199 -

1200 QT_END_NAMESPACE -

1201 -

1202 #include "moc_qitemdelegate.cpp" -

1203 -

1204 #endif // QT_NO_ITEMVIEWS -

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