/*!
Destroys the screen.
*/
QScreen::~QScreen()
{
if (!qApp)
return;
// Allow clients to manage windows that are affected by the screen going
// away, before we fall back to moving them to the primary screen.
emit qApp->screenRemoved(this);
if (QGuiApplication::closingDown())
return;
QScreen *primaryScreen = QGuiApplication::primaryScreen();
if (this == primaryScreen)
return;
bool movingFromVirtualSibling = primaryScreen && primaryScreen->handle()->virtualSiblings().contains(handle());
// Move any leftover windows to the primary screen
const auto allWindows = QGuiApplication::allWindows();
for (QWindow *window : allWindows) {
if (!window->isTopLevel() || window->screen() != this)
continue;
const bool wasVisible = window->isVisible();
window->setScreen(primaryScreen);
// Re-show window if moved from a virtual sibling screen. Otherwise
// leave it up to the application developer to show the window.
if (movingFromVirtualSibling)
window->setVisible(wasVisible);
}
}
/*!
Returns the platform screen handle corresponding to this platform window,
or null if the window is not associated with a screen.
*/
QPlatformScreen *QPlatformWindow::screen() const
{
QScreen *scr = window()->screen();
return scr ? scr->handle() : Q_NULLPTR;
}
QKmsScreen *QKmsNativeInterface::qPlatformScreenForWindow(QWindow *window)
{
QScreen *screen = window ? window->screen() : QGuiApplication::primaryScreen();
return static_cast<QKmsScreen *>(screen->handle());
}