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qplatformintegration.cpp

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39 -

40 #include "qplatformintegration.h" -

41 -

42 #include <qpa/qplatformfontdatabase.h> -

43 #include <qpa/qplatformclipboard.h> -

44 #include <qpa/qplatformaccessibility.h> -

45 #include <qpa/qplatformtheme.h> -

46 #include <QtGui/private/qguiapplication_p.h> -

47 #include <QtGui/private/qpixmap_raster_p.h> -

48 #include <private/qdnd_p.h> -

49 #include <private/qsimpledrag_p.h> -

50 -

51 #ifndef QT_NO_SESSIONMANAGER -

52 # include <qpa/qplatformsessionmanager.h> -

53 #endif -

54 -

55 QT_BEGIN_NAMESPACE -

56 -

57 /*! -

58 Accessor for the platform integration's fontdatabase. -

59 -

60 Default implementation returns a default QPlatformFontDatabase. -

61 -

62 \sa QPlatformFontDatabase -

63 */ -

64 QPlatformFontDatabase *QPlatformIntegration::fontDatabase() const -

65 { -

66 static QPlatformFontDatabase *db = 0; -

if (!db) {

!db	Description
TRUE	never evaluated
FALSE	never evaluated

68 db = new QPlatformFontDatabase; -

}

never executed: end of block

return db;

never executed: return db;

71 } -

72 -

73 /*! -

74 Accessor for the platform integration's clipboard. -

75 -

76 Default implementation returns a default QPlatformClipboard. -

77 -

78 \sa QPlatformClipboard -

79 -

80 */ -

81 -

82 #ifndef QT_NO_CLIPBOARD -

83 -

84 QPlatformClipboard *QPlatformIntegration::clipboard() const -

85 { -

86 static QPlatformClipboard *clipboard = 0; -

if (!clipboard) {

!clipboard	Description
TRUE	never evaluated
FALSE	never evaluated

88 clipboard = new QPlatformClipboard; -

}

never executed: end of block

return clipboard;

never executed: return clipboard;

91 } -

92 -

93 #endif -

94 -

95 #ifndef QT_NO_DRAGANDDROP -

96 /*! -

97 Accessor for the platform integration's drag object. -

98 -

99 Default implementation returns 0, implying no drag and drop support. -

100 -

101 */ -

102 QPlatformDrag *QPlatformIntegration::drag() const -

103 { -

104 static QSimpleDrag *drag = 0; -

105

if (!drag) {

!drag	Description
TRUE	never evaluated
FALSE	never evaluated

106 drag = new QSimpleDrag; -

107

}

never executed: end of block

108

return drag;

never executed: return drag;

109 } -

110 #endif -

111 -

112 QPlatformNativeInterface * QPlatformIntegration::nativeInterface() const -

113 { -

114

return 0;

never executed: return 0;

115 } -

116 -

117 QPlatformServices *QPlatformIntegration::services() const -

118 { -

119

return 0;

never executed: return 0;

120 } -

121 -

122 /*! -

123 \class QPlatformIntegration -

124 \since 4.8 -

125 \internal -

126 \preliminary -

127 \ingroup qpa -

128 \brief The QPlatformIntegration class is the entry for WindowSystem specific functionality. -

129 -

130 QPlatformIntegration is the single entry point for windowsystem specific functionality when -

131 using the QPA platform. It has factory functions for creating platform specific pixmaps and -

132 windows. The class also controls the font subsystem. -

133 -

134 QPlatformIntegration is a singleton class which gets instantiated in the QGuiApplication -

135 constructor. The QPlatformIntegration instance do not have ownership of objects it creates in -

136 functions where the name starts with create. However, functions which don't have a name -

137 starting with create acts as accessors to member variables. -

138 -

139 It is not trivial to create or build a platform plugin outside of the Qt source tree. Therefore -

140 the recommended approach for making new platform plugin is to copy an existing plugin inside -

141 the QTSRCTREE/src/plugins/platform and develop the plugin inside the source tree. -

142 -

143 The minimal platform integration is the smallest platform integration it is possible to make, -

144 which makes it an ideal starting point for new plugins. For a slightly more advanced plugin, -

145 consider reviewing the directfb plugin, or the testlite plugin. -

146 */ -

147 -

148 /*! -

149 \fn QPlatformPixmap *QPlatformIntegration::createPlatformPixmap(QPlatformPixmap::PixelType type) const -

150 -

151 Factory function for QPlatformPixmap. PixelType can be either PixmapType or BitmapType. -

152 \sa QPlatformPixmap -

153 */ -

154 -

155 /*! -

156 \fn QPlatformWindow *QPlatformIntegration::createPlatformWindow(QWindow *window) const -

157 -

158 Factory function for QPlatformWindow. The \a window parameter is a pointer to the window -

159 which the QPlatformWindow is supposed to be created for. -

160 -

161 All windows have to have a QPlatformWindow, and it will be created on-demand when the -

162 QWindow is made visible for the first time, or explicitly through calling QWindow::create(). -

163 -

164 In the constructor, of the QPlatformWindow, the window flags, state, title and geometry -

165 of the \a window should be applied to the underlying window. If the resulting flags or state -

166 differs, the resulting values should be set on the \a window using QWindow::setWindowFlags() -

167 or QWindow::setWindowState(), respectively. -

168 -

169 \sa QPlatformWindow, QPlatformWindowFormat -

170 \sa createPlatformBackingStore() -

171 */ -

172 -

173 /*! -

174 \fn QPlatformBackingStore *QPlatformIntegration::createPlatformBackingStore(QWindow *window) const -

175 -

176 Factory function for QPlatformBackingStore. The QWindow parameter is a pointer to the -

177 top level widget(tlw) the window surface is created for. A QPlatformWindow is always created -

178 before the QPlatformBackingStore for tlw where the widget also requires a backing store. -

179 -

180 \sa QBackingStore -

181 \sa createPlatformWindow() -

182 */ -

183 -

184 /*! -

185 \enum QPlatformIntegration::Capability -

186 -

187 Capabilities are used to determing specific features of a platform integration -

188 -

189 \value ThreadedPixmaps The platform uses a pixmap implementation that is reentrant -

190 and can be used from multiple threads, like the raster paint engine and QImage based -

191 pixmaps. -

192 -

193 \value OpenGL The platform supports OpenGL -

194 -

195 \value ThreadedOpenGL The platform supports using OpenGL outside the GUI thread. -

196 -

197 \value SharedGraphicsCache The platform supports a shared graphics cache -

198 -

199 \value BufferQueueingOpenGL The OpenGL implementation on the platform will queue -

200 up buffers when swapBuffers() is called and block only when its buffer pipeline -

201 is full, rather than block immediately. -

202 -

203 \value MultipleWindows The platform supports multiple QWindows, i.e. does some kind -

204 of compositing either client or server side. Some platforms might only support a -

205 single fullscreen window. -

206 -

207 \value ApplicationState The platform handles the application state explicitly. -

208 This means that QEvent::ApplicationActivate and QEvent::ApplicationDeativate -

209 will not be posted automatically. Instead, the platform must handle application -

210 state explicitly by using QWindowSystemInterface::handleApplicationStateChanged(). -

211 If not set, application state will follow window activation, which is the normal -

212 behavior for desktop platforms. -

213 -

214 \value ForeignWindows The platform allows creating QWindows which represent -

215 native windows created by other processes or by using native libraries. -

216 -

217 \value NonFullScreenWindows The platform supports top-level windows which do not -

218 fill the screen. The default implementation returns \c true. Returning false for -

219 this will cause all windows, including dialogs and popups, to be resized to fill the -

220 screen. -

221 -

222 \value WindowManagement The platform is based on a system that performs window -

223 management. This includes the typical desktop platforms. Can be set to false on -

224 platforms where no window management is available, meaning for example that windows -

225 are never repositioned by the window manager. The default implementation returns \c true. -

226 -

227 \value AllGLFunctionsQueryable Deprecated. Used to indicate whether the QOpenGLContext -

228 backend provided by the platform is -

229 able to return function pointers from getProcAddress() even for standard OpenGL -

230 functions, for example OpenGL 1 functions like glClear() or glDrawArrays(). This is -

231 important because the OpenGL specifications do not require this ability from the -

232 getProcAddress implementations of the windowing system interfaces (EGL, WGL, GLX). The -

233 platform plugins may however choose to enhance the behavior in the backend -

234 implementation for QOpenGLContext::getProcAddress() and support returning a function -

235 pointer also for the standard, non-extension functions. This capability is a -

236 prerequisite for dynamic OpenGL loading. Starting with Qt 5.7, the platform plugin -

237 is required to have this capability. -

238 -

239 \value ApplicationIcon The platform supports setting the application icon. (since 5.5) -

240 */ -

241 -

242 /*! -

243 -

244 \fn QAbstractEventDispatcher *QPlatformIntegration::createEventDispatcher() const = 0 -

245 -

246 Factory function for the GUI event dispatcher. The platform plugin should create -

247 and return a QAbstractEventDispatcher subclass when this function is called. -

248 -

249 If the platform plugin for some reason creates the event dispatcher outside of -

250 this function (for example in the constructor), it needs to handle the case -

251 where this function is never called, ensuring that the event dispatcher is -

252 still deleted at some point (typically in the destructor). -

253 -

254 Note that the platform plugin should never explicitly set the event dispatcher -

255 itself, using QCoreApplication::setEventDispatcher(), but let QCoreApplication -

256 decide when and which event dispatcher to create. -

257 -

258 \since 5.2 -

259 */ -

260 -

261 bool QPlatformIntegration::hasCapability(Capability cap) const -

262 { -

263

return cap == NonFullScreenWindows || cap == NativeWidgets || cap == WindowManagement;

never executed: return cap == NonFullScreenWindows || cap == NativeWidgets || cap == WindowManagement;

264 } -

265 -

266 QPlatformPixmap *QPlatformIntegration::createPlatformPixmap(QPlatformPixmap::PixelType type) const -

267 { -

268

return new QRasterPlatformPixmap(type);

never executed: return new QRasterPlatformPixmap(type);

269 } -

270 -

271 #ifndef QT_NO_OPENGL -

272 /*! -

273 Factory function for QPlatformOpenGLContext. The \a context parameter is a pointer to -

274 the context for which a platform-specific context backend needs to be -

275 created. Configuration settings like the format, share context and screen have to be -

276 taken from this QOpenGLContext and the resulting platform context is expected to be -

277 backed by a native context that fulfills these criteria. -

278 -

279 If the context has native handles set, no new native context is expected to be created. -

280 Instead, the provided handles have to be used. In this case the ownership of the handle -

281 must not be taken and the platform implementation is not allowed to destroy the native -

282 context. Configuration parameters like the format are also to be ignored. Instead, the -

283 platform implementation is responsible for querying the configuriation from the provided -

284 native context. -

285 -

286 Returns a pointer to a QPlatformOpenGLContext instance or \c NULL if the context could -

287 not be created. -

288 -

289 \sa QOpenGLContext -

290 */ -

291 QPlatformOpenGLContext *QPlatformIntegration::createPlatformOpenGLContext(QOpenGLContext *context) const -

292 { -

293 Q_UNUSED(context); -

294 qWarning("This plugin does not support createPlatformOpenGLContext!"); -

295

return 0;

never executed: return 0;

296 } -

297 #endif // QT_NO_OPENGL -

298 -

299 /*! -

300 Factory function for QPlatformSharedGraphicsCache. This function will return 0 if the platform -

301 integration does not support any shared graphics cache mechanism for the given \a cacheId. -

302 */ -

303 QPlatformSharedGraphicsCache *QPlatformIntegration::createPlatformSharedGraphicsCache(const char *cacheId) const -

304 { -

305 qWarning("This plugin does not support createPlatformSharedGraphicsBuffer for cacheId: %s!", -

306 cacheId); -

307

return 0;

never executed: return 0;

308 } -

309 -

310 /*! -

311 Factory function for QPaintEngine. This function will return 0 if the platform -

312 integration does not support creating any paint engine the given \a paintDevice. -

313 */ -

314 QPaintEngine *QPlatformIntegration::createImagePaintEngine(QPaintDevice *paintDevice) const -

315 { -

316 Q_UNUSED(paintDevice) -

317

return 0;

never executed: return 0;

318 } -

319 -

320 /*! -

321 Performs initialization steps that depend on having an event dispatcher -

322 available. Called after the event dispatcher has been created. -

323 -

324 Tasks that require an event dispatcher, for example creating socket notifiers, cannot be -

325 performed in the constructor. Instead, they should be performed here. The default -

326 implementation does nothing. -

327 */ -

328 void QPlatformIntegration::initialize() -

329 { -

330 } -

331 -

332 /*! -

333 Called before the platform integration is deleted. Useful when cleanup relies on virtual -

334 functions. -

335 -

336 \since 5.5 -

337 */ -

338 void QPlatformIntegration::destroy() -

339 { -

340 } -

341 -

342 /*! -

343 Returns the platforms input context. -

344 -

345 The default implementation returns 0, implying no input method support. -

346 */ -

347 QPlatformInputContext *QPlatformIntegration::inputContext() const -

348 { -

349

return 0;

never executed: return 0;

350 } -

351 -

352 #ifndef QT_NO_ACCESSIBILITY -

353 -

354 /*! -

355 Returns the platforms accessibility. -

356 -

357 The default implementation returns 0, implying no accessibility support. -

358 */ -

359 QPlatformAccessibility *QPlatformIntegration::accessibility() const -

360 { -

361

return 0;

never executed: return 0;

362 } -

363 -

364 #endif -

365 -

366 QVariant QPlatformIntegration::styleHint(StyleHint hint) const -

367 { -

368 switch (hint) { -

369

case CursorFlashTime:

never executed: case CursorFlashTime:

370

return QPlatformTheme::defaultThemeHint(QPlatformTheme::CursorFlashTime);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::CursorFlashTime);

371

case KeyboardInputInterval:

never executed: case KeyboardInputInterval:

372

return QPlatformTheme::defaultThemeHint(QPlatformTheme::KeyboardInputInterval);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::KeyboardInputInterval);

373

case KeyboardAutoRepeatRate:

never executed: case KeyboardAutoRepeatRate:

374

return QPlatformTheme::defaultThemeHint(QPlatformTheme::KeyboardAutoRepeatRate);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::KeyboardAutoRepeatRate);

375

case MouseDoubleClickInterval:

never executed: case MouseDoubleClickInterval:

376

return QPlatformTheme::defaultThemeHint(QPlatformTheme::MouseDoubleClickInterval);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::MouseDoubleClickInterval);

377

case StartDragDistance:

never executed: case StartDragDistance:

378

return QPlatformTheme::defaultThemeHint(QPlatformTheme::StartDragDistance);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::StartDragDistance);

379

case StartDragTime:

never executed: case StartDragTime:

380

return QPlatformTheme::defaultThemeHint(QPlatformTheme::StartDragTime);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::StartDragTime);

381

case ShowIsFullScreen:

never executed: case ShowIsFullScreen:

382

return false;

never executed: return false;

383

case ShowIsMaximized:

never executed: case ShowIsMaximized:

384

return false;

never executed: return false;

385

case PasswordMaskDelay:

never executed: case PasswordMaskDelay:

386

return QPlatformTheme::defaultThemeHint(QPlatformTheme::PasswordMaskDelay);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::PasswordMaskDelay);

387

case PasswordMaskCharacter:

never executed: case PasswordMaskCharacter:

388

return QPlatformTheme::defaultThemeHint(QPlatformTheme::PasswordMaskCharacter);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::PasswordMaskCharacter);

389

case FontSmoothingGamma:

never executed: case FontSmoothingGamma:

390

return qreal(1.7);

never executed: return qreal(1.7);

391

case StartDragVelocity:

never executed: case StartDragVelocity:

392

return QPlatformTheme::defaultThemeHint(QPlatformTheme::StartDragVelocity);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::StartDragVelocity);

393

case UseRtlExtensions:

never executed: case UseRtlExtensions:

394

return QVariant(false);

never executed: return QVariant(false);

395

case SetFocusOnTouchRelease:

never executed: case SetFocusOnTouchRelease:

396

return QVariant(false);

never executed: return QVariant(false);

397

case MousePressAndHoldInterval:

never executed: case MousePressAndHoldInterval:

398

return QPlatformTheme::defaultThemeHint(QPlatformTheme::MousePressAndHoldInterval);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::MousePressAndHoldInterval);

399

case TabFocusBehavior:

never executed: case TabFocusBehavior:

400

return QPlatformTheme::defaultThemeHint(QPlatformTheme::TabFocusBehavior);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::TabFocusBehavior);

401

case ReplayMousePressOutsidePopup:

never executed: case ReplayMousePressOutsidePopup:

402

return true;

never executed: return true;

403

case ItemViewActivateItemOnSingleClick:

never executed: case ItemViewActivateItemOnSingleClick:

404

return QPlatformTheme::defaultThemeHint(QPlatformTheme::ItemViewActivateItemOnSingleClick);

never executed: return QPlatformTheme::defaultThemeHint(QPlatformTheme::ItemViewActivateItemOnSingleClick);

405 } -

406 -

407

return 0;

never executed: return 0;

408 } -

409 -

410 Qt::WindowState QPlatformIntegration::defaultWindowState(Qt::WindowFlags flags) const -

411 { -

412 // Leave popup-windows as is -

413

if (flags & Qt::Popup & ~Qt::Window)

flags & Qt::Po... & ~Qt::Window	Description
TRUE	never evaluated
FALSE	never evaluated

414

return Qt::WindowNoState;

never executed: return Qt::WindowNoState;

415 -

416

if (styleHint(QPlatformIntegration::ShowIsFullScreen).toBool())

styleHint(QPla...reen).toBool()	Description
TRUE	never evaluated
FALSE	never evaluated

417

return Qt::WindowFullScreen;

never executed: return Qt::WindowFullScreen;

418

else if (styleHint(QPlatformIntegration::ShowIsMaximized).toBool())

styleHint(QPla...ized).toBool()	Description
TRUE	never evaluated
FALSE	never evaluated

419

return Qt::WindowMaximized;

never executed: return Qt::WindowMaximized;

420 -

421

return Qt::WindowNoState;

never executed: return Qt::WindowNoState;

422 } -

423 -

424 Qt::KeyboardModifiers QPlatformIntegration::queryKeyboardModifiers() const -

425 { -

426

return QGuiApplication::keyboardModifiers();

never executed: return QGuiApplication::keyboardModifiers();

427 } -

428 -

429 /*! -

430 Should be used to obtain a list of possible shortcuts for the given key -

431 event. As that needs system functionality it cannot be done in qkeymapper. -

432 -

433 One example for more than 1 possibility is the key combination of Shift+5. -

434 That one might trigger a shortcut which is set as "Shift+5" as well as one -

435 using %. These combinations depend on the currently set keyboard layout -

436 which cannot be obtained by Qt functionality. -

437 */ -

438 QList<int> QPlatformIntegration::possibleKeys(const QKeyEvent *) const -

439 { -

440

return QList<int>();

never executed: return QList<int>();

441 } -

442 -

443 /*! -

444 Should be called by the implementation whenever a new screen is added. -

445 -

446 The first screen added will be the primary screen, used for default-created -

447 windows, GL contexts, and other resources unless otherwise specified. -

448 -

449 This adds the screen to QGuiApplication::screens(), and emits the -

450 QGuiApplication::screenAdded() signal. -

451 -

452 The screen should be deleted by calling QPlatformIntegration::destroyScreen(). -

453 */ -

454 void QPlatformIntegration::screenAdded(QPlatformScreen *ps, bool isPrimary) -

455 { -

456 QScreen *screen = new QScreen(ps); -

457 -

458

if (isPrimary) {

isPrimary	Description
TRUE	never evaluated
FALSE	never evaluated

459 QGuiApplicationPrivate::screen_list.prepend(screen); -

460

} else {

never executed: end of block

461 QGuiApplicationPrivate::screen_list.append(screen); -

462

}

never executed: end of block

463 emit qGuiApp->screenAdded(screen); -

464 -

465

if (isPrimary)

isPrimary	Description
TRUE	never evaluated
FALSE	never evaluated

466

emit qGuiApp->primaryScreenChanged(screen);

never executed: (static_cast<QGuiApplication *>(QCoreApplication::instance()))->primaryScreenChanged(screen);

467

}

never executed: end of block

468 -

469 /*! -

470 Just removes the screen, call destroyScreen instead. -

471 -

472 \sa destroyScreen() -

473 */ -

474 -

475 void QPlatformIntegration::removeScreen(QScreen *screen) -

476 { -

477

const bool wasPrimary = (!QGuiApplicationPrivate::screen_list.isEmpty() && QGuiApplicationPrivate::screen_list.at(0) == screen);

!QGuiApplicati...list.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

QGuiApplicatio...t(0) == screen	Description
TRUE	never evaluated
FALSE	never evaluated

478 QGuiApplicationPrivate::screen_list.removeOne(screen); -

479 -

480

if (wasPrimary && qGuiApp && !QGuiApplicationPrivate::screen_list.isEmpty())

wasPrimary	Description
TRUE	never evaluated
FALSE	never evaluated

(static_cast<Q...::instance()))	Description
TRUE	never evaluated
FALSE	never evaluated

!QGuiApplicati...list.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

481

emit qGuiApp->primaryScreenChanged(QGuiApplicationPrivate::screen_list.at(0));

never executed:

(static_cast<QGuiApplication *>(QCoreApplication::instance()))->primaryScreenChanged(QGuiApplicationPrivate::screen_list.at(0));

482

}

never executed: end of block

483 -

484 /*! -

485 Should be called by the implementation whenever a screen is removed. -

486 -

487 This removes the screen from QGuiApplication::screens(), and deletes it. -

488 -

489 Failing to call this and manually deleting the QPlatformScreen instead may -

490 lead to a crash due to a pure virtual call. -

491 */ -

492 void QPlatformIntegration::destroyScreen(QPlatformScreen *screen) -

493 { -

494 QScreen *qScreen = screen->screen(); -

495 removeScreen(qScreen); -

496 delete qScreen; -

497 delete screen; -

498

}

never executed: end of block

499 -

500 /*! -

501 Should be called whenever the primary screen changes. -

502 -

503 When the screen specified as primary changes, this method will notify -

504 QGuiApplication and emit the QGuiApplication::primaryScreenChanged signal. -

505 */ -

506 -

507 void QPlatformIntegration::setPrimaryScreen(QPlatformScreen *newPrimary) -

508 { -

509 QScreen* newPrimaryScreen = newPrimary->screen(); -

510 int idx = QGuiApplicationPrivate::screen_list.indexOf(newPrimaryScreen); -

511 Q_ASSERT(idx >= 0); -

512

if (idx == 0)

idx == 0	Description
TRUE	never evaluated
FALSE	never evaluated

513

return;

never executed: return;

514 -

515 QGuiApplicationPrivate::screen_list.swap(0, idx); -

516 emit qGuiApp->primaryScreenChanged(newPrimaryScreen); -

517

}

never executed: end of block

518 -

519 QStringList QPlatformIntegration::themeNames() const -

520 { -

521

return QStringList();

never executed: return QStringList();

522 } -

523 -

524 class QPlatformTheme *QPlatformIntegration::createPlatformTheme(const QString &name) const -

525 { -

526 Q_UNUSED(name) -

527

return new QPlatformTheme;

never executed: return new QPlatformTheme;

528 } -

529 -

530 /*! -

531 Factory function for QOffscreenSurface. An offscreen surface will typically be implemented with a -

532 pixel buffer (pbuffer). If the platform doesn't support offscreen surfaces, an invisible window -

533 will be used by QOffscreenSurface instead. -

534 */ -

535 QPlatformOffscreenSurface *QPlatformIntegration::createPlatformOffscreenSurface(QOffscreenSurface *surface) const -

536 { -

537 Q_UNUSED(surface) -

538

return 0;

never executed: return 0;

539 } -

540 -

541 #ifndef QT_NO_SESSIONMANAGER -

542 /*! -

543 \since 5.2 -

544 -

545 Factory function for QPlatformSessionManager. The default QPlatformSessionManager provides the same -

546 functionality as the QSessionManager. -

547 */ -

548 QPlatformSessionManager *QPlatformIntegration::createPlatformSessionManager(const QString &id, const QString &key) const -

549 { -

550

return new QPlatformSessionManager(id, key);

never executed: return new QPlatformSessionManager(id, key);

551 } -

552 #endif -

553 -

554 /*! -

555 \since 5.2 -

556 -

557 Function to sync the platform integrations state with the window system. -

558 -

559 This is often implemented as a roundtrip from the platformintegration to the window system. -

560 -

561 This function should not call QWindowSystemInterface::flushWindowSystemEvents() or -

562 QCoreApplication::processEvents() -

563 */ -

564 void QPlatformIntegration::sync() -

565 { -

566 } -

567 -

568 /*! -

569 \since 5.7 -

570 -

571 Should sound a bell, using the default volume and sound. -

572 -

573 \sa QApplication::beep() -

574 */ -

575 void QPlatformIntegration::beep() const -

576 { -

577 } -

578 -

579 #ifndef QT_NO_OPENGL -

580 /*! -

581 Platform integration function for querying the OpenGL implementation type. -

582 -

583 Used only when dynamic OpenGL implementation loading is enabled. -

584 -

585 Subclasses should reimplement this function and return a value based on -

586 the OpenGL implementation they have chosen to load. -

587 -

588 \note The return value does not indicate or limit the types of -

589 contexts that can be created by a given implementation. For example -

590 a desktop OpenGL implementation may be capable of creating OpenGL -

591 ES-compatible contexts too. -

592 -

593 \sa QOpenGLContext::openGLModuleType(), QOpenGLContext::isOpenGLES() -

594 -

595 \since 5.3 -

596 */ -

597 QOpenGLContext::OpenGLModuleType QPlatformIntegration::openGLModuleType() -

598 { -

599 qWarning("This plugin does not support dynamic OpenGL loading!"); -

600

return QOpenGLContext::LibGL;

never executed: return QOpenGLContext::LibGL;

601 } -

602 #endif -

603 -

604 /*! -

605 \since 5.5 -

606 -

607 Platform integration function for setting the application icon. -

608 -

609 \sa QGuiApplication::setWindowIcon() -

610 */ -

611 void QPlatformIntegration::setApplicationIcon(const QIcon &icon) const -

612 { -

613 Q_UNUSED(icon); -

614

}

never executed: end of block

615 -

616 QT_END_NAMESPACE -

Source code

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