Method checkMousePosition

pcsx2-qt/MainWindow.cpp:3058–3104

}

void MainWindow::checkMousePosition(int x, int y)
{
	// This function is called from a different thread on Linux/macOS
	// kaboom can happen when the widget is destroyed after shouldMouseLock is called, so queue everything to the UI thread
	QtHost::RunOnUIThread([this, x, y]() {
		if (!shouldMouseLock())
			return;

		// physical mouse position
		const QPoint physicalPos(x, y);

		const auto* displayWindow = m_display_surface;

		// logical (DIP) frame rect
		const QSize logicalSize = displayWindow->size();
#ifdef DISPLAY_SURFACE_WINDOW
		const QPoint logicalPosition = isRenderingToMain() ? (displayWindow->position() + displayWindow->parent()->position()) : displayWindow->position();
#else
		const QPoint logicalPosition = displayWindow->position() + displayWindow->parent()->position();
#endif

		// The offset to the origin of the current screen is in device-independent pixels while the origin itself is native!
		// The logicalPosition is the sum of these two values, so we need to separate them and only scale the offset
		const QScreen* screen = displayWindow->screen();

		// If we fail to get the screen associated with the window, avoid mouse locking as it's probably in an unexpected position.
		if (!screen)
			return;

		const QPoint screenPosition = screen->geometry().topLeft();

		// physical frame rect
		const qreal scale = displayWindow->devicePixelRatio();
		const QRectF physicalBounds(
			screenPosition.x() + (logicalPosition.x() - screenPosition.x()) * scale,
			screenPosition.y() + (logicalPosition.y() - screenPosition.y()) * scale,
			logicalSize.width() * scale,
			logicalSize.height() * scale);

		if (physicalBounds.contains(physicalPos))
			return;

		Common::SetMousePosition(
			std::clamp(physicalPos.x(), (int)physicalBounds.left(), (int)physicalBounds.right()),
			std::clamp(physicalPos.y(), (int)physicalBounds.top(), (int)physicalBounds.bottom()));
	});
}

void MainWindow::saveDisplayWindowGeometryToConfig()
{