Method closeArea

src/3rdparty/Qt-Advanced-Docking-System/src/DockAreaWidget.cpp:1203–1235

============================================================================

//============================================================================
void CDockAreaWidget::closeArea()
{
	// If there is only one single dock widget and this widget has the
	// DeleteOnClose feature or CustomCloseHandling, then we delete the dock widget now;
	// in the case of CustomCloseHandling, the CDockWidget class will emit its
	// closeRequested signal and not actually delete unless the signal is handled in a way that deletes it
	auto OpenDockWidgets = openedDockWidgets();
    if (OpenDockWidgets.count() == 1 &&
			(OpenDockWidgets[0]->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) || OpenDockWidgets[0]->features().testFlag(CDockWidget::CustomCloseHandling))
			&& !isAutoHide())
	{
		OpenDockWidgets[0]->closeDockWidgetInternal();
	}
    else
	{
        for (auto DockWidget : openedDockWidgets())
        {
			if ((DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) && DockWidget->features().testFlag(CDockWidget::DockWidgetForceCloseWithArea)) ||
				DockWidget->features().testFlag(CDockWidget::CustomCloseHandling))
			{
				DockWidget->closeDockWidgetInternal();
			}
			else if (DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) && isAutoHide())
			{
                DockWidget->closeDockWidgetInternal();
			}
            else
            {
                DockWidget->toggleView(false);
            }
        }
    }
}


enum eBorderLocation