src/widgets/kernel/qwidget_qpa.cpp

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  41
  42 #include "QtWidgets/qwidget.h"
  43 #include "QtGui/qevent.h"
  44 #include "QtWidgets/qapplication.h"
  45 #include "private/qwidgetbackingstore_p.h"
  46 #include "private/qwidget_p.h"
  47 #include "private/qwidgetwindow_qpa_p.h"
  48 #include "private/qapplication_p.h"
  49 #include "QtWidgets/qdesktopwidget.h"
  50 #include <qpa/qplatformwindow.h>
  51 #include "QtGui/qsurfaceformat.h"
  52 #include <qpa/qplatformopenglcontext.h>
  53 #include "QtGui/private/qwindow_p.h"
  54
  55 #include <qpa/qplatformcursor.h>
  56 #include <QtGui/QGuiApplication>
  57 #include <QtGui/QScreen>
  58 #include <QtCore/QMargins>
  59
  60 QT_BEGIN_NAMESPACE
  61
  62 void q_createNativeChildrenAndSetParent(QWindow *parentWindow, const QWidget *parentWidget)
  63 {
  64     QObjectList children = parentWidget->children();
  65     for (int i = 0; i < children.size(); i++) {
  66         if (children.at(i)->isWidgetType()) {
  67             const QWidget *childWidget = qobject_cast<const QWidget *>(children.at(i));
  68             if (childWidget) { // should not be necessary
  69                 if (childWidget->testAttribute(Qt::WA_NativeWindow)) {
  70                     if (!childWidget->windowHandle())
  71                         childWidget->winId();
  72                     if (childWidget->windowHandle()) {
  73                         if (childWidget->isTopLevel())
  74                             childWidget->windowHandle()->setTransientParent(parentWindow);
  75                         else
  76                             childWidget->windowHandle()->setParent(parentWindow);
  77                     }
  78                 } else {
  79                     q_createNativeChildrenAndSetParent(parentWindow,childWidget);
  80                 }
  81             }
  82         }
  83     }
  84
  85 }
  86
  87 void QWidgetPrivate::create_sys(WId window, bool initializeWindow, bool destroyOldWindow)
  88 {
  89     Q_Q(QWidget);
  90
  91     Q_UNUSED(window);
  92     Q_UNUSED(initializeWindow);
  93     Q_UNUSED(destroyOldWindow);
  94
  95     Qt::WindowFlags flags = data.window_flags;
  96
  97     if (!q->testAttribute(Qt::WA_NativeWindow) && !q->isWindow())
  98         return; // we only care about real toplevels
  99
 100     QWindow *win = topData()->window;
 101     // topData() ensures the extra is created but does not ensure 'window' is non-null
 102     // in case the extra was already valid.
 103     if (!win) {
 104         createTLSysExtra();
 105         win = topData()->window;
 106     }
 107
 108     win->setWindowFlags(data.window_flags);
 109     fixPosIncludesFrame();
 110     win->setGeometry(q->geometry());
 111     win->setScreen(QGuiApplication::screens().value(topData()->screenIndex, 0));
 112
 113     if (q->testAttribute(Qt::WA_TranslucentBackground)) {
 114         QSurfaceFormat format;
 115         format.setAlphaBufferSize(8);
 116         win->setFormat(format);
 117     }
 118
 119     if (QWidget *nativeParent = q->nativeParentWidget()) {
 120         if (nativeParent->windowHandle()) {
 121             if (flags & Qt::Window) {
 122                 win->setTransientParent(nativeParent->windowHandle());
 123                 win->setParent(0);
 124             } else {
 125                 win->setTransientParent(0);
 126                 win->setParent(nativeParent->windowHandle());
 127             }
 128         }
 129     }
 130
 131     qt_window_private(win)->positionPolicy = topData()->posIncludesFrame ?
 132         QWindowPrivate::WindowFrameInclusive : QWindowPrivate::WindowFrameExclusive;
 133     win->create();
 134
 135     data.window_flags = win->windowFlags();
 136
 137     QBackingStore *store = q->backingStore();
 138
 139     if (!store) {
 140         if (win && q->windowType() != Qt::Desktop)
 141             q->setBackingStore(new QBackingStore(win));
 142         else
 143             q->setAttribute(Qt::WA_PaintOnScreen, true);
 144     }
 145
 146     setWindowModified_helper();
 147     setWinId(win->winId());
 148
 149     // Check children and create windows for them if necessary
 150     q_createNativeChildrenAndSetParent(q->windowHandle(), q);
 151
 152     // If widget is already shown, set window visible, too
 153     if (q->isVisible())
 154         win->setVisible(true);
 155 }
 156
 157 void QWidget::destroy(bool destroyWindow, bool destroySubWindows)
 158 {
 159     Q_D(QWidget);
 160
 161     d->aboutToDestroy();
 162     if (!isWindow() && parentWidget())
 163         parentWidget()->d_func()->invalidateBuffer(d->effectiveRectFor(geometry()));
 164     d->deactivateWidgetCleanup();
 165
 166     if ((windowType() == Qt::Popup))
 167         qApp->d_func()->closePopup(this);
 168
 169     if (this == QApplicationPrivate::active_window)
 170         QApplication::setActiveWindow(0);
 171
 172     setAttribute(Qt::WA_WState_Created, false);
 173
 174     if (windowType() != Qt::Desktop) {
 175         if (destroySubWindows) {
 176             QObjectList childList(children());
 177             for (int i = 0; i < childList.size(); i++) {
 178                 QWidget *widget = qobject_cast<QWidget *>(childList.at(i));
 179                 if (widget && widget->testAttribute(Qt::WA_NativeWindow)) {
 180                     if (widget->windowHandle()) {
 181                         widget->destroy();
 182                     }
 183                 }
 184             }
 185         }
 186         if (destroyWindow) {
 187             d->deleteTLSysExtra();
 188         } else {
 189             if (parentWidget() && parentWidget()->testAttribute(Qt::WA_WState_Created)) {
 190                 d->hide_sys();
 191             }
 192         }
 193
 194         d->setWinId(0);
 195     }
 196 }
 197
 198 void QWidgetPrivate::setParent_sys(QWidget *newparent, Qt::WindowFlags f)
 199 {
 200     Q_Q(QWidget);
 201
 202     Qt::WindowFlags oldFlags = data.window_flags;
 203     bool wasCreated = q->testAttribute(Qt::WA_WState_Created);
 204
 205     int targetScreen = -1;
 206     // Handle a request to move the widget to a particular screen
 207     if (newparent && newparent->windowType() == Qt::Desktop) {
 208         // make sure the widget is created on the same screen as the
 209         // programmer specified desktop widget
 210
 211         // get the desktop's screen number
 212         targetScreen = newparent->window()->d_func()->topData()->screenIndex;
 213         newparent = 0;
 214     }
 215
 216     setWinId(0);
 217
 218     if (parent != newparent) {
 219         QObjectPrivate::setParent_helper(newparent); //### why does this have to be done in the _sys function???
 220         if (q->windowHandle()) {
 221             q->windowHandle()->setWindowFlags(f);
 222             QWidget *parentWithWindow =
 223                 newparent ? (newparent->windowHandle() ? newparent : newparent->nativeParentWidget()) : 0;
 224             if (parentWithWindow) {
 225                 if (f & Qt::Window) {
 226                     q->windowHandle()->setTransientParent(parentWithWindow->windowHandle());
 227                     q->windowHandle()->setParent(0);
 228                 } else {
 229                     q->windowHandle()->setTransientParent(0);
 230                     q->windowHandle()->setParent(parentWithWindow->windowHandle());
 231                 }
 232             } else {
 233                 q->windowHandle()->setTransientParent(0);
 234                 q->windowHandle()->setParent(0);
 235             }
 236         }
 237     }
 238
 239     if (!newparent) {
 240         f |= Qt::Window;
 241         if (targetScreen == -1) {
 242             if (parent)
 243                 targetScreen = q->parentWidget()->window()->d_func()->topData()->screenIndex;
 244         }
 245     }
 246
 247     bool explicitlyHidden = q->testAttribute(Qt::WA_WState_Hidden) && q->testAttribute(Qt::WA_WState_ExplicitShowHide);
 248
 249     // Reparenting toplevel to child
 250     if (!(f&Qt::Window) && (oldFlags&Qt::Window) && !q->testAttribute(Qt::WA_NativeWindow)) {
 251         //qDebug() << "setParent_sys() change from toplevel";
 252         q->destroy();
 253     } else if (newparent && wasCreated) {
 254         q->createWinId();
 255     }
 256
 257     adjustFlags(f, q);
 258     data.window_flags = f;
 259     q->setAttribute(Qt::WA_WState_Created, false);
 260     q->setAttribute(Qt::WA_WState_Visible, false);
 261     q->setAttribute(Qt::WA_WState_Hidden, false);
 262
 263     if (q->isWindow() || (!newparent || newparent->isVisible()) || explicitlyHidden)
 264         q->setAttribute(Qt::WA_WState_Hidden);
 265     q->setAttribute(Qt::WA_WState_ExplicitShowHide, explicitlyHidden);
 266
 267     // move the window to the selected screen
 268     if (!newparent && targetScreen != -1) {
 269         if (maybeTopData())
 270             maybeTopData()->screenIndex = targetScreen;
 271         // only if it is already created
 272         if (q->testAttribute(Qt::WA_WState_Created)) {
 273             q->windowHandle()->setScreen(QGuiApplication::screens().value(targetScreen, 0));
 274         }
 275     }
 276 }
 277
 278 QPoint QWidget::mapToGlobal(const QPoint &pos) const
 279 {
 280     int x = pos.x(), y = pos.y();
 281     const QWidget *w = this;
 282     while (w) {
 283         x += w->data->crect.x();
 284         y += w->data->crect.y();
 285         w = w->isWindow() ? 0 : w->parentWidget();
 286     }
 287     return QPoint(x, y);
 288 }
 289
 290 QPoint QWidget::mapFromGlobal(const QPoint &pos) const
 291 {
 292     int x = pos.x(), y = pos.y();
 293     const QWidget *w = this;
 294     while (w) {
 295         x -= w->data->crect.x();
 296         y -= w->data->crect.y();
 297         w = w->isWindow() ? 0 : w->parentWidget();
 298     }
 299     return QPoint(x, y);
 300 }
 301
 302 void QWidgetPrivate::updateSystemBackground() {}
 303
 304 #ifndef QT_NO_CURSOR
 305 void QWidgetPrivate::setCursor_sys(const QCursor &cursor)
 306 {
 307     Q_UNUSED(cursor);
 308     Q_Q(QWidget);
 309     qt_qpa_set_cursor(q, false);
 310 }
 311
 312 void QWidgetPrivate::unsetCursor_sys()
 313 {
 314     Q_Q(QWidget);
 315     qt_qpa_set_cursor(q, false);
 316 }
 317
 318 #endif //QT_NO_CURSOR
 319
 320 void QWidgetPrivate::setWindowTitle_sys(const QString &caption)
 321 {
 322     Q_Q(QWidget);
 323     if (!q->isWindow())
 324         return;
 325
 326     if (QWindow *window = q->windowHandle())
 327         window->setWindowTitle(caption);
 328
 329 }
 330
 331 void QWidgetPrivate::setWindowIcon_sys()
 332 {
 333     Q_Q(QWidget);
 334     if (QWindow *window = q->windowHandle())
 335         window->setWindowIcon(q->windowIcon());
 336 }
 337
 338 void QWidgetPrivate::setWindowIconText_sys(const QString &iconText)
 339 {
 340     Q_UNUSED(iconText);
 341 }
 342
 343 QWidget *qt_pressGrab = 0;
 344 QWidget *qt_mouseGrb = 0;
 345 static QWidget *keyboardGrb = 0;
 346
 347 void QWidget::grabMouse()
 348 {
 349     if (qt_mouseGrb)
 350         qt_mouseGrb->releaseMouse();
 351
 352     if (windowHandle())
 353         windowHandle()->setMouseGrabEnabled(true);
 354
 355     qt_mouseGrb = this;
 356     qt_pressGrab = 0;
 357 }
 358
 359 #ifndef QT_NO_CURSOR
 360 void QWidget::grabMouse(const QCursor &cursor)
 361 {
 362     Q_UNUSED(cursor);
 363
 364     if (qt_mouseGrb)
 365         qt_mouseGrb->releaseMouse();
 366
 367     if (windowHandle())
 368         windowHandle()->setMouseGrabEnabled(true);
 369
 370     qt_mouseGrb = this;
 371     qt_pressGrab = 0;
 372 }
 373 #endif
 374
 375 bool QWidgetPrivate::stealMouseGrab(bool grab)
 376 {
 377     // This is like a combination of grab/releaseMouse() but with error checking
 378     // and it has no effect on the result of mouseGrabber().
 379     Q_Q(QWidget);
 380     return q->windowHandle() ? q->windowHandle()->setMouseGrabEnabled(grab) : false;
 381 }
 382
 383 void QWidget::releaseMouse()
 384 {
 385     if (qt_mouseGrb == this) {
 386         if (windowHandle())
 387             windowHandle()->setMouseGrabEnabled(false);
 388         qt_mouseGrb = 0;
 389     }
 390 }
 391
 392 void QWidget::grabKeyboard()
 393 {
 394     if (keyboardGrb)
 395         keyboardGrb->releaseKeyboard();
 396     if (windowHandle())
 397         windowHandle()->setKeyboardGrabEnabled(true);
 398     keyboardGrb = this;
 399 }
 400
 401 bool QWidgetPrivate::stealKeyboardGrab(bool grab)
 402 {
 403     // This is like a combination of grab/releaseKeyboard() but with error
 404     // checking and it has no effect on the result of keyboardGrabber().
 405     Q_Q(QWidget);
 406     return q->windowHandle() ? q->windowHandle()->setKeyboardGrabEnabled(grab) : false;
 407 }
 408
 409 void QWidget::releaseKeyboard()
 410 {
 411     if (keyboardGrb == this) {
 412         if (windowHandle())
 413             windowHandle()->setKeyboardGrabEnabled(false);
 414         keyboardGrb = 0;
 415     }
 416 }
 417
 418 QWidget *QWidget::mouseGrabber()
 419 {
 420     if (qt_mouseGrb)
 421         return qt_mouseGrb;
 422     return qt_pressGrab;
 423 }
 424
 425 QWidget *QWidget::keyboardGrabber()
 426 {
 427     return keyboardGrb;
 428 }
 429
 430 void QWidget::activateWindow()
 431 {
 432     if (windowHandle())
 433         windowHandle()->requestActivateWindow();
 434 }
 435
 436 // Position top level windows at the center, avoid showing
 437 // Windows at the default 0,0 position excluding the frame.
 438 static inline QRect positionTopLevelWindow(QRect geometry, const QScreen *screen)
 439 {
 440     if (screen && geometry.x() == 0 && geometry.y() == 0) {
 441        const QRect availableGeometry = screen->availableGeometry();
 442         if (availableGeometry.width() > geometry.width()
 443             && availableGeometry.height() > geometry.height())
 444             geometry.moveCenter(availableGeometry.center());
 445     }
 446     return geometry;
 447 }
 448
 449 // move() was invoked with Qt::WA_WState_Created not set (frame geometry
 450 // unknown), that is, crect has a position including the frame.
 451 // If we can determine the frame strut, fix that and clear the flag.
 452 void QWidgetPrivate::fixPosIncludesFrame()
 453 {
 454     Q_Q(QWidget);
 455     if (QTLWExtra *te = maybeTopData()) {
 456         if (te->posIncludesFrame) {
 457             // For Qt::WA_DontShowOnScreen, assume a frame of 0 (for
 458             // example, in QGraphicsProxyWidget).
 459             if (q->testAttribute(Qt::WA_DontShowOnScreen)) {
 460                 te->posIncludesFrame = 0;
 461             } else {
 462                 if (q->windowHandle()) {
 463                     updateFrameStrut();
 464                     if (!q->data->fstrut_dirty) {
 465                         data.crect.translate(te->frameStrut.x(), te->frameStrut.y());
 466                         te->posIncludesFrame = 0;
 467                     }
 468                 } // windowHandle()
 469             } // !WA_DontShowOnScreen
 470         } // posIncludesFrame
 471     } // QTLWExtra
 472 }
 473
 474 void QWidgetPrivate::show_sys()
 475 {
 476     Q_Q(QWidget);
 477
 478     QWindow *window = q->windowHandle();
 479
 480     if (q->testAttribute(Qt::WA_DontShowOnScreen)) {
 481         invalidateBuffer(q->rect());
 482         q->setAttribute(Qt::WA_Mapped);
 483         if (q->isWindow() && q->windowModality() != Qt::NonModal && window) {
 484             // add our window to the modal window list
 485             QGuiApplicationPrivate::showModalWindow(window);
 486         }
 487         return;
 488     }
 489
 490     QApplication::postEvent(q, new QUpdateLaterEvent(q->rect()));
 491
 492     if (!q->isWindow() && !q->testAttribute(Qt::WA_NativeWindow))
 493         return;
 494
 495     if (window) {
 496         if (q->isWindow())
 497             fixPosIncludesFrame();
 498         QRect geomRect = q->geometry();
 499         if (q->isWindow()) {
 500             if (!q->testAttribute(Qt::WA_Moved))
 501                 geomRect = positionTopLevelWindow(geomRect, window->screen());
 502         } else {
 503             QPoint topLeftOfWindow = q->mapTo(q->nativeParentWidget(),QPoint());
 504             geomRect.moveTopLeft(topLeftOfWindow);
 505         }
 506         const QRect windowRect = window->geometry();
 507         if (windowRect != geomRect) {
 508             window->setGeometry(geomRect);
 509         }
 510
 511         if (QBackingStore *store = q->backingStore()) {
 512             if (store->size() != geomRect.size()) {
 513                 store->resize(geomRect.size());
 514             }
 515         }
 516
 517         invalidateBuffer(q->rect());
 518         window->setVisible(true);
 519     }
 520 }
 521
 522
 523 void QWidgetPrivate::hide_sys()
 524 {
 525     Q_Q(QWidget);
 526
 527     QWindow *window = q->windowHandle();
 528
 529     if (q->testAttribute(Qt::WA_DontShowOnScreen)) {
 530         q->setAttribute(Qt::WA_Mapped, false);
 531         if (q->isWindow() && q->windowModality() != Qt::NonModal && window) {
 532             // remove our window from the modal window list
 533             QGuiApplicationPrivate::hideModalWindow(window);
 534         }
 535         // do not return here, if window non-zero, we must hide it
 536     }
 537
 538     deactivateWidgetCleanup();
 539
 540     if (!q->isWindow()) {
 541         QWidget *p = q->parentWidget();
 542         if (p &&p->isVisible()) {
 543             invalidateBuffer(q->rect());
 544         }
 545         return;
 546     }
 547
 548     invalidateBuffer(q->rect());
 549
 550     if (window)
 551         window->setVisible(false);
 552 }
 553
 554 void QWidgetPrivate::setMaxWindowState_helper()
 555 {
 556     Q_Q(QWidget);
 557
 558     const uint old_state = data.in_set_window_state;
 559     data.in_set_window_state = 1;
 560
 561     const QRect desktop = qApp->desktop()->availableGeometry(qApp->desktop()->screenNumber(q));
 562     q->setGeometry(desktop);
 563
 564     data.in_set_window_state = old_state;
 565 }
 566
 567 void QWidgetPrivate::setFullScreenSize_helper()
 568 {
 569     Q_Q(QWidget);
 570
 571     const uint old_state = data.in_set_window_state;
 572     data.in_set_window_state = 1;
 573
 574     const QRect screen = qApp->desktop()->screenGeometry(qApp->desktop()->screenNumber(q));
 575     q->move(screen.topLeft());
 576     q->resize(screen.size());
 577
 578     data.in_set_window_state = old_state;
 579 }
 580
 581 Qt::WindowState effectiveState(Qt::WindowStates state)
 582  {
 583      if (state & Qt::WindowMinimized)
 584          return Qt::WindowMinimized;
 585      else if (state & Qt::WindowFullScreen)
 586          return Qt::WindowFullScreen;
 587      else if (state & Qt::WindowMaximized)
 588          return Qt::WindowMaximized;
 589      return Qt::WindowNoState;
 590  }
 591
 592 void QWidget::setWindowState(Qt::WindowStates newstate)
 593 {
 594     Q_D(QWidget);
 595     Qt::WindowStates oldstate = windowState();
 596     if (oldstate == newstate)
 597         return;
 598     if (isWindow() && !testAttribute(Qt::WA_WState_Created))
 599         create();
 600
 601     data->window_state = newstate;
 602     data->in_set_window_state = 1;
 603     bool needShow = false;
 604     Qt::WindowState newEffectiveState = effectiveState(newstate);
 605     Qt::WindowState oldEffectiveState = effectiveState(oldstate);
 606     if (isWindow() && newEffectiveState != oldEffectiveState) {
 607         d->createTLExtra();
 608         if (oldEffectiveState == Qt::WindowNoState)
 609             d->topData()->normalGeometry = geometry();
 610
 611         Q_ASSERT(windowHandle());
 612         windowHandle()->setWindowState(newEffectiveState);
 613         bool supported = windowHandle()->windowState() == newEffectiveState;
 614
 615         if (!supported) {
 616             // undo the effects of the old emulated state
 617             if (oldEffectiveState == Qt::WindowFullScreen) {
 618                 setParent(0, d->topData()->savedFlags);
 619                 needShow = true;
 620             } else if (oldEffectiveState == Qt::WindowMinimized) {
 621                 needShow = true;
 622             }
 623
 624             // emulate the new window state
 625             if (newEffectiveState == Qt::WindowMinimized) {
 626                 //### not ideal...
 627                 hide();
 628                 needShow = false;
 629             } else if (newEffectiveState == Qt::WindowFullScreen) {
 630                 d->topData()->savedFlags = windowFlags();
 631                 setParent(0, Qt::FramelessWindowHint | (windowFlags() & Qt::WindowStaysOnTopHint));
 632                 d->setFullScreenSize_helper();
 633                 raise();
 634                 needShow = true;
 635             } else if (newEffectiveState == Qt::WindowMaximized) {
 636                 createWinId();
 637                 d->setMaxWindowState_helper();
 638             } else if (newEffectiveState == Qt::WindowNoState) {
 639                 // reset old geometry
 640                 QRect r = d->topData()->normalGeometry;
 641                 if (r.width() >= 0) {
 642                     d->topData()->normalGeometry = QRect(0,0,-1,-1);
 643                     setGeometry(r);
 644                 }
 645             }
 646         }
 647     }
 648     data->in_set_window_state = 0;
 649
 650     if (needShow)
 651         show();
 652
 653     if (newstate & Qt::WindowActive)
 654         activateWindow();
 655
 656     QWindowStateChangeEvent e(oldstate);
 657     QApplication::sendEvent(this, &e);
 658 }
 659
 660 void QWidgetPrivate::setFocus_sys()
 661 {
 662
 663 }
 664
 665 void QWidgetPrivate::raise_sys()
 666 {
 667     Q_Q(QWidget);
 668     if (q->isWindow()) {
 669         q->windowHandle()->raise();
 670     }
 671 }
 672
 673 void QWidgetPrivate::lower_sys()
 674 {
 675     Q_Q(QWidget);
 676     if (q->isWindow()) {
 677         Q_ASSERT(q->testAttribute(Qt::WA_WState_Created));
 678         q->windowHandle()->lower();
 679     } else if (QWidget *p = q->parentWidget()) {
 680         setDirtyOpaqueRegion();
 681         p->d_func()->invalidateBuffer(effectiveRectFor(q->geometry()));
 682     }
 683 }
 684
 685 void QWidgetPrivate::stackUnder_sys(QWidget*)
 686 {
 687     Q_Q(QWidget);
 688     if (QWidget *p = q->parentWidget()) {
 689         setDirtyOpaqueRegion();
 690         p->d_func()->invalidateBuffer(effectiveRectFor(q->geometry()));
 691     }
 692 }
 693
 694 void QWidgetPrivate::setGeometry_sys(int x, int y, int w, int h, bool isMove)
 695 {
 696     Q_Q(QWidget);
 697     if (extra) {                                // any size restrictions?
 698         w = qMin(w,extra->maxw);
 699         h = qMin(h,extra->maxh);
 700         w = qMax(w,extra->minw);
 701         h = qMax(h,extra->minh);
 702     }
 703
 704     QPoint oldp = q->geometry().topLeft();
 705     QSize olds = q->size();
 706     QRect r(x, y, w, h);
 707
 708     bool isResize = olds != r.size();
 709     isMove = oldp != r.topLeft(); //### why do we have isMove as a parameter?
 710
 711
 712     // We only care about stuff that changes the geometry, or may
 713     // cause the window manager to change its state
 714     if (r.size() == olds && oldp == r.topLeft())
 715         return;
 716
 717     if (!data.in_set_window_state) {
 718         q->data->window_state &= ~Qt::WindowMaximized;
 719         q->data->window_state &= ~Qt::WindowFullScreen;
 720         if (q->isWindow())
 721             topData()->normalGeometry = QRect(0, 0, -1, -1);
 722     }
 723
 724     QPoint oldPos = q->pos();
 725     data.crect = r;
 726
 727     bool needsShow = false;
 728
 729     if (w == 0 || h == 0) {
 730         q->setAttribute(Qt::WA_OutsideWSRange, true);
 731         if (q->isVisible() && q->testAttribute(Qt::WA_Mapped))
 732             hide_sys();
 733         data.crect = QRect(x, y, w, h);
 734     } else if (q->isVisible() && q->testAttribute(Qt::WA_OutsideWSRange)) {
 735         q->setAttribute(Qt::WA_OutsideWSRange, false);
 736         needsShow = true;
 737     }
 738
 739     if (q->isVisible()) {
 740         if (!q->testAttribute(Qt::WA_DontShowOnScreen) && !q->testAttribute(Qt::WA_OutsideWSRange)) {
 741             if (q->windowHandle()) {
 742                 if (q->isWindow()) {
 743                     q->windowHandle()->setGeometry(q->geometry());
 744                 } else {
 745                     QPoint posInNativeParent =  q->mapTo(q->nativeParentWidget(),QPoint());
 746                     q->windowHandle()->setGeometry(QRect(posInNativeParent,r.size()));
 747                 }
 748                 const QWidgetBackingStore *bs = maybeBackingStore();
 749                 if (bs->store) {
 750                     if (isResize)
 751                         bs->store->resize(r.size());
 752                 }
 753
 754                 if (needsShow)
 755                     show_sys();
 756             } else {
 757                 if (isMove && !isResize)
 758                     moveRect(QRect(oldPos, olds), x - oldPos.x(), y - oldPos.y());
 759                 else
 760                     invalidateBuffer_resizeHelper(oldPos, olds);
 761             }
 762         }
 763
 764         if (isMove) {
 765             QMoveEvent e(q->pos(), oldPos);
 766             QApplication::sendEvent(q, &e);
 767         }
 768         if (isResize) {
 769             QResizeEvent e(r.size(), olds);
 770             QApplication::sendEvent(q, &e);
 771             if (q->windowHandle())
 772                 q->update();
 773         }
 774     } else { // not visible
 775         if (isMove && q->pos() != oldPos)
 776             q->setAttribute(Qt::WA_PendingMoveEvent, true);
 777         if (isResize)
 778             q->setAttribute(Qt::WA_PendingResizeEvent, true);
 779     }
 780
 781 }
 782
 783 void QWidgetPrivate::setConstraints_sys()
 784 {
 785     Q_Q(QWidget);
 786     if (extra && q->windowHandle()) {
 787         QWindow *win = q->windowHandle();
 788         QWindowPrivate *winp = qt_window_private(win);
 789
 790         winp->minimumSize = QSize(extra->minw, extra->minh);
 791         winp->maximumSize = QSize(extra->maxw, extra->maxh);
 792
 793         if (extra->topextra) {
 794             winp->baseSize = QSize(extra->topextra->basew, extra->topextra->baseh);
 795             winp->sizeIncrement = QSize(extra->topextra->incw, extra->topextra->inch);
 796         }
 797
 798         if (winp->platformWindow) {
 799             fixPosIncludesFrame();
 800             winp->platformWindow->propagateSizeHints();
 801         }
 802     }
 803 }
 804
 805 void QWidgetPrivate::scroll_sys(int dx, int dy)
 806 {
 807     Q_Q(QWidget);
 808     scrollChildren(dx, dy);
 809     scrollRect(q->rect(), dx, dy);
 810 }
 811
 812 void QWidgetPrivate::scroll_sys(int dx, int dy, const QRect &r)
 813 {
 814     scrollRect(r, dx, dy);
 815 }
 816
 817 int QWidget::metric(PaintDeviceMetric m) const
 818 {
 819     Q_D(const QWidget);
 820
 821     QScreen *screen = 0;
 822     if (QWidget *topLevel = window())
 823         if (QWindow *topLevelWindow = topLevel->windowHandle()) {
 824             QPlatformScreen *platformScreen = QPlatformScreen::platformScreenForWindow(topLevelWindow);
 825             if (platformScreen)
 826                 screen = platformScreen->screen();
 827         }
 828     if (!screen && QGuiApplication::primaryScreen())
 829         screen = QGuiApplication::primaryScreen();
 830
 831     if (!screen) {
 832         if (m == PdmDpiX || m == PdmDpiY)
 833               return 72;
 834         return QPaintDevice::metric(m);
 835     }
 836     int val;
 837     if (m == PdmWidth) {
 838         val = data->crect.width();
 839     } else if (m == PdmWidthMM) {
 840         val = data->crect.width() * screen->physicalSize().width() / screen->geometry().width();
 841     } else if (m == PdmHeight) {
 842         val = data->crect.height();
 843     } else if (m == PdmHeightMM) {
 844         val = data->crect.height() * screen->physicalSize().height() / screen->geometry().height();
 845     } else if (m == PdmDepth) {
 846         return screen->depth();
 847     } else if (m == PdmDpiX) {
 848         if (d->extra && d->extra->customDpiX)
 849             return d->extra->customDpiX;
 850         else if (d->parent)
 851             return static_cast<QWidget *>(d->parent)->metric(m);
 852         return qRound(screen->logicalDotsPerInchX());
 853     } else if (m == PdmDpiY) {
 854         if (d->extra && d->extra->customDpiY)
 855             return d->extra->customDpiY;
 856         else if (d->parent)
 857             return static_cast<QWidget *>(d->parent)->metric(m);
 858         return qRound(screen->logicalDotsPerInchY());
 859     } else if (m == PdmPhysicalDpiX) {
 860         return qRound(screen->physicalDotsPerInchX());
 861     } else if (m == PdmPhysicalDpiY) {
 862         return qRound(screen->physicalDotsPerInchY());
 863     } else {
 864         val = QPaintDevice::metric(m);// XXX
 865     }
 866     return val;
 867 }
 868
 869 /*!
 870     \preliminary
 871
 872     Returns the QPlatformWindow this widget will be drawn into.
 873 */
 874 QWindow *QWidget::windowHandle() const
 875 {
 876     Q_D(const QWidget);
 877     QTLWExtra *extra = d->maybeTopData();
 878     if (extra)
 879         return extra->window;
 880
 881     return 0;
 882 }
 883
 884 void QWidgetPrivate::createSysExtra()
 885 {
 886 }
 887
 888 void QWidgetPrivate::deleteSysExtra()
 889 {
 890
 891 }
 892
 893 void QWidgetPrivate::createTLSysExtra()
 894 {
 895     Q_Q(QWidget);
 896     extra->topextra->screenIndex = 0;
 897     extra->topextra->window = 0;
 898     if (q->testAttribute(Qt::WA_NativeWindow) || q->isWindow())
 899         extra->topextra->window = new QWidgetWindow(q);
 900 }
 901
 902 void QWidgetPrivate::deleteTLSysExtra()
 903 {
 904     if (extra && extra->topextra) {
 905         //the toplevel might have a context with a "qglcontext associated with it. We need to
 906         //delete the qglcontext before we delete the qplatformopenglcontext.
 907         //One unfortunate thing about this is that we potentially create a glContext just to
 908         //delete it straight afterwards.
 909         if (extra->topextra->window) {
 910             extra->topextra->window->destroy();
 911         }
 912         setWinId(0);
 913         //hmmm. should we delete window..
 914         delete extra->topextra->window;
 915         extra->topextra->window = 0;
 916     }
 917 }
 918
 919 void QWidgetPrivate::registerDropSite(bool on)
 920 {
 921     Q_UNUSED(on);
 922 }
 923
 924 void QWidgetPrivate::setMask_sys(const QRegion &region)
 925 {
 926     Q_UNUSED(region);
 927     // XXX
 928 }
 929
 930 void QWidgetPrivate::updateFrameStrut()
 931 {
 932     Q_Q(QWidget);
 933     if (q->data->fstrut_dirty) {
 934         if (QTLWExtra *te = maybeTopData()) {
 935             if (te->window) {
 936                 if (const QPlatformWindow *pw = te->window->handle()) {
 937                     const QMargins margins = pw->frameMargins();
 938                     if (!margins.isNull()) {
 939                         te->frameStrut.setCoords(margins.left(), margins.top(), margins.right(), margins.bottom());
 940                         q->data->fstrut_dirty = false;
 941                     }
 942                 }
 943             }
 944         }
 945     }
 946 }
 947
 948 void QWidgetPrivate::setWindowOpacity_sys(qreal level)
 949 {
 950     Q_Q(QWidget);
 951     if (q->windowHandle())
 952         q->windowHandle()->setOpacity(level);
 953 }
 954
 955 void QWidgetPrivate::setWSGeometry(bool dontShow, const QRect &oldRect)
 956 {
 957     Q_UNUSED(dontShow);
 958     Q_UNUSED(oldRect);
 959     // XXX
 960 }
 961
 962 QPaintEngine *QWidget::paintEngine() const
 963 {
 964     qWarning("QWidget::paintEngine: Should no longer be called");
 965     return 0; //##### @@@
 966 }
 967
 968 void QWidgetPrivate::setModal_sys()
 969 {
 970     Q_Q(QWidget);
 971     if (q->windowHandle())
 972         q->windowHandle()->setWindowModality(q->windowModality());
 973 }
 974
 975 #ifndef QT_NO_CURSOR
 976 static inline void applyCursor(QWidget *w, QCursor c)
 977 {
 978     if (QWindow *window = w->windowHandle())
 979         if (const QScreen *screen = window->screen())
 980             if (QPlatformCursor *cursor = screen->handle()->cursor())
 981                 cursor->changeCursor(&c, window);
 982 }
 983
 984 void qt_qpa_set_cursor(QWidget *w, bool force)
 985 {
 986     if (!w->testAttribute(Qt::WA_WState_Created))
 987         return;
 988
 989     static QPointer<QWidget> lastUnderMouse = 0;
 990     if (force) {
 991         lastUnderMouse = w;
 992     } else if (lastUnderMouse && lastUnderMouse->effectiveWinId() == w->effectiveWinId()) {
 993         w = lastUnderMouse;
 994     } else if (!w->internalWinId()) {
 995         return; // The mouse is not under this widget, and it's not native, so don't change it.
 996     }
 997
 998     while (!w->internalWinId() && w->parentWidget() && !w->isWindow()
 999            && !w->testAttribute(Qt::WA_SetCursor))
1000         w = w->parentWidget();
1001
1002     QWidget *nativeParent = w;
1003     if (!w->internalWinId())
1004         nativeParent = w->nativeParentWidget();
1005     if (!nativeParent || !nativeParent->internalWinId())
1006         return;
1007
1008     if (w->isWindow() || w->testAttribute(Qt::WA_SetCursor)) {
1009         QCursor *oc = QApplication::overrideCursor();
1010         if (oc)
1011             applyCursor(nativeParent, *oc);
1012         else if (w->isEnabled())
1013             applyCursor(nativeParent, w->cursor());
1014         else
1015             // Enforce the windows behavior of clearing the cursor on
1016             // disabled widgets.
1017             applyCursor(nativeParent, Qt::ArrowCursor);
1018     } else {
1019         applyCursor(nativeParent, Qt::ArrowCursor);
1020     }
1021 }
1022 #endif //QT_NO_CURSOR
1023
1024 QT_END_NAMESPACE