Added new config flag DoubleClickUndocksWidget to configure if double clicking a DockWidget tab or titlebar undocks the widget

examples/emptydockarea/mainwindow.cpp

@@ -37,6 +37,7 @@ CMainWindow::CMainWindow(QWidget *parent)
 	ads::CDockManager::setConfigFlag( ads::CDockManager::DockAreaHasUndockButton, false );
 	ads::CDockManager::setConfigFlag( ads::CDockManager::DockAreaDynamicTabsMenuButtonVisibility, true );
 	ads::CDockManager::setConfigFlag( ads::CDockManager::DisableTabTextEliding, true );
+	ads::CDockManager::setConfigFlag( ads::CDockManager::DoubleClickUndocksWidget, false );
     DockManager = new CDockManager(this);
 
     // Set central widget

src/DockAreaTitleBar.cpp

@@ -733,6 +733,11 @@ void CDockAreaTitleBar::mouseDoubleClickEvent(QMouseEvent *event)
 		return;
 	}
 
+	if (!CDockManager::testConfigFlag(CDockManager::DoubleClickUndocksWidget))
+	{
+		return;
+	}
+
 	d->makeAreaFloating(event->pos(), DraggingInactive);
 }
 

src/DockManager.h

@@ -215,6 +215,8 @@ public:
 		MiddleMouseButtonClosesTab = 0x2000000, //! If the flag is set, the user can use the mouse middle button to close the tab under the mouse
 		DisableTabTextEliding =      0x4000000, //! Set this flag to disable eliding of tab texts in dock area tabs
 		ShowTabTextOnlyForActiveTab =0x8000000, //! Set this flag to show label texts in dock area tabs only for active tabs
+		DoubleClickUndocksWidget = 0x10000000, //!< If the flag is set, a double click on a tab undocks the widget
+
 
         DefaultDockAreaButtons = DockAreaHasCloseButton
 							   | DockAreaHasUndockButton
@@ -223,7 +225,8 @@ public:
 		DefaultBaseConfig = DefaultDockAreaButtons
 		                  | ActiveTabHasCloseButton
 		                  | XmlCompressionEnabled
-		                  | FloatingContainerHasWidgetTitle, ///< default base configuration settings
+		                  | FloatingContainerHasWidgetTitle
+		                  | DoubleClickUndocksWidget, ///< default base configuration settings
 
         DefaultOpaqueConfig = DefaultBaseConfig
 		                    | OpaqueSplitterResize

src/DockWidgetTab.cpp

@@ -699,7 +699,7 @@ QString CDockWidgetTab::text() const
 //============================================================================
 void CDockWidgetTab::mouseDoubleClickEvent(QMouseEvent *event)
 {
-	if (event->button() == Qt::LeftButton) 
+	if (event->button() == Qt::LeftButton && CDockManager::testConfigFlag(CDockManager::DoubleClickUndocksWidget))
 	{
 		// If this is the last dock area in a dock container it does not make
 		// sense to move it to a new floating widget and leave this one