Added setHideSingleWidgetTitleBar to DockWidgetArea

demo/MainWindow.cpp

@@ -399,6 +399,9 @@ void MainWindowPrivate::createContent()
 	// Test custom factory - we inject a help button into the title bar
 	ads::CDockComponentsFactory::setFactory(new CCustomComponentsFactory());
 	auto TopDockArea = DockManager->addDockWidget(ads::TopDockWidgetArea, FileSystemWidget);
+	// Uncomment the next line if you would like to test the
+	// setHideSingleWidgetTitleBar() functionality
+	// TopDockArea->setHideSingleWidgetTitleBar(true);
 	ads::CDockComponentsFactory::resetDefaultFactory();
 
 	// We create a calendar widget and clear all flags to prevent the dock area

src/DockAreaWidget.cpp

@@ -30,8 +30,6 @@
 //============================================================================
 #include "DockAreaWidget.h"
 
-#include <iostream>
-
 #include <QStackedLayout>
 #include <QScrollBar>
 #include <QScrollArea>
@@ -251,6 +249,7 @@ struct DockAreaWidgetPrivate
 	CDockManager*		DockManager		= nullptr;
 	bool UpdateTitleBarButtons = false;
 	DockWidgetAreas		AllowedAreas	= AllDockAreas;
+	bool HideSingleWidgetTitleBar		= false;
 	QSize MinSizeHint;
 
 	/**
@@ -747,6 +746,7 @@ void CDockAreaWidget::updateTitleBarVisibility()
 	{
 		bool Hidden = Container->hasTopLevelDockWidget() && (Container->isFloating()
 			|| CDockManager::testConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar));
+		Hidden |= (d->HideSingleWidgetTitleBar && openDockWidgetsCount() == 1);
 		d->TitleBar->setVisible(!Hidden);
 	}
 }
@@ -850,16 +850,28 @@ void CDockAreaWidget::setVisible(bool Visible)
 	}
 }
 
+
+//============================================================================
 void CDockAreaWidget::setAllowedAreas(DockWidgetAreas areas)
 {
 	d->AllowedAreas = areas;
 }
 
+
+//============================================================================
 DockWidgetAreas CDockAreaWidget::allowedAreas() const
 {
 	return d->AllowedAreas;
 }
 
+//============================================================================
+void CDockAreaWidget::setHideSingleWidgetTitleBar(bool hide)
+{
+	d->HideSingleWidgetTitleBar = hide;
+	updateTitleBarVisibility();
+}
+
+
 //============================================================================
 QAbstractButton* CDockAreaWidget::titleBarButton(TitleBarButton which) const
 {

src/DockAreaWidget.h

@@ -272,6 +272,12 @@ public:
 	 */
 	DockWidgetAreas allowedAreas() const;
 
+	/**
+	 * Will hide the title bar when set to true and there is only one
+	 * dock widget in this area
+	 */
+	void setHideSingleWidgetTitleBar(bool hide);
+
 	/**
 	 * Returns the title bar of this dock area
 	 */