Method startFloating

src/3rdparty/Qt-Advanced-Docking-System/src/DockWidgetTab.cpp:302–353

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bool DockWidgetTabPrivate::startFloating(eDragState DraggingState)
{
	auto dockContainer = DockWidget->dockContainer();
    ADS_PRINT("isFloating " << dockContainer->isFloating());
    ADS_PRINT("areaCount " << dockContainer->dockAreaCount());
    ADS_PRINT("widgetCount " << DockWidget->dockAreaWidget()->dockWidgetsCount());
	// if this is the last dock widget inside of this floating widget,
	// then it does not make any sense, to make it floating because
	// it is already floating
	 if (dockContainer->isFloating()
	 && (dockContainer->visibleDockAreaCount() == 1)
	 && (DockWidget->dockAreaWidget()->dockWidgetsCount() == 1))
	{
		return false;
	}

    ADS_PRINT("startFloating");
	DragState = DraggingState;
	IFloatingWidget* FloatingWidget = nullptr;
	bool CreateContainer = (DraggingFloatingWidget != DraggingState);

	// If section widget has multiple tabs, we take only one tab
	// If it has only one single tab, we can move the complete
	// dock area into floating widget
	QSize Size;
	if (DockArea->dockWidgetsCount() > 1)
	{
		FloatingWidget = createFloatingWidget(DockWidget, CreateContainer);
		Size = DockWidget->size();
	}
	else
	{
		FloatingWidget = createFloatingWidget(DockArea, CreateContainer);
		Size = DockArea->size();
	}

    if (DraggingFloatingWidget == DraggingState)
    {
        FloatingWidget->startFloating(DragStartMousePosition, Size, DraggingFloatingWidget, _this);
        auto DockManager = DockWidget->dockManager();
    	auto Overlay = DockManager->containerOverlay();
    	Overlay->setAllowedAreas(OuterDockAreas);
    	this->FloatingWidget = FloatingWidget;
    	qApp->postEvent(DockWidget, new QEvent((QEvent::Type)internal::DockedWidgetDragStartEvent));
    }
    else
    {
     	FloatingWidget->startFloating(DragStartMousePosition, Size, DraggingInactive, nullptr);
    }

	return true;
}


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