Fixed a bug when dragging a FloatingDragPreview from another floating widget over an empty MainWindow

* Generate Python stubs file for linters

* Sort members of ads namespace in generated __init__.py

* Fix pyi generatation in setup.py if building inplace

* Update sip files and demo

README.md

@@ -13,10 +13,22 @@ integrated development environments (IDEs) such as Visual Studio.
 
 [![Video Advanced Docking](doc/advanced-docking_video.png)](https://www.youtube.com/watch?v=7pdNfafg3Qc)
 
+## New and Noteworthy
+
+The [release 3.5.0](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.5.0)
+adds the new [focus highlighting](doc/user-guide.md#focushighlighting) feature.
+This optional feature enables highlighting of the focused dock widget like you
+know it from Visual Studio.
+
+![FocusHighlighting](doc/cfg_flag_FocusHighlighting.gif)
+
+ [learn more...](doc/user-guide.md#focushighlighting)
+
 ## Features
 
 ### Overview
 
+- [New and Noteworthy](#new-and-noteworthy)
 - [Features](#features)
   - [Overview](#overview)
   - [Docking everywhere - no central widget](#docking-everywhere---no-central-widget)
@@ -129,7 +141,7 @@ Normally clicking the close button of a dock widget will just hide the widget an
 
 ### Python PyQt5 Bindings
 
-<img src="doc/python_logo.png" height="140">
+![Python Logo](doc/python_logo.png)
 
 The Advanced Docking System comes with a complete Python integration based on
 PyQt5 bindings. The package is available via [conda-forge](https://github.com/conda-forge/pyqtads-feedstock). The python integration has been contributed to this project
@@ -139,7 +151,7 @@ by the following people:
 - [Hugo Slepicka](https://github.com/hhslepicka)
 - [K Lauer](https://github.com/klauer)
 
-Latest working version: [3.4.2](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.4.2)
+Latest working version: [3.5.1](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.5.1)
 
 ## Tested Compatible Environments
 

demo/MainWindow.cpp

@@ -78,35 +78,6 @@
 
 
 
-//============================================================================
-static ads::CDockWidget* createLongTextLabelDockWidget(QMenu* ViewMenu)
-{
-	static int LabelCount = 0;
-	QLabel* l = new QLabel();
-	l->setWordWrap(true);
-	l->setAlignment(Qt::AlignTop | Qt::AlignLeft);
-	l->setText(QString("Label %1 %2 - Lorem ipsum dolor sit amet, consectetuer adipiscing elit. "
-		"Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque "
-		"penatibus et magnis dis parturient montes, nascetur ridiculus mus. "
-		"Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. "
-		"Nulla consequat massa quis enim. Donec pede justo, fringilla vel, "
-		"aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, "
-		"imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede "
-		"mollis pretium. Integer tincidunt. Cras dapibus. Vivamus elementum "
-		"semper nisi. Aenean vulputate eleifend tellus. Aenean leo ligula, "
-		"porttitor eu, consequat vitae, eleifend ac, enim. Aliquam lorem ante, "
-		"dapibus in, viverra quis, feugiat a, tellus. Phasellus viverra nulla "
-		"ut metus varius laoreet.")
-		.arg(LabelCount)
-		.arg(QTime::currentTime().toString("hh:mm:ss:zzz")));
-
-	ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Label %1").arg(LabelCount++));
-	DockWidget->setWidget(l);
-	ViewMenu->addAction(DockWidget->toggleViewAction());
-	return DockWidget;
-}
-
-
 /**
  * Function returns a features string with closable (c), movable (m) and floatable (f)
  * features. i.e. The following string is for a not closable but movable and floatable
@@ -164,74 +135,6 @@ public:
 };
 
 
-//============================================================================
-static ads::CDockWidget* createCalendarDockWidget(QMenu* ViewMenu)
-{
-	static int CalendarCount = 0;
-	QCalendarWidget* w = new QCalendarWidget();
-	ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Calendar %1").arg(CalendarCount++));
-	// The following lines are for testing the setWidget() and takeWidget()
-	// functionality
-	DockWidget->setWidget(w);
-	DockWidget->setWidget(w); // what happens if we set a widget if a widget is already set
-	DockWidget->takeWidget(); // we remove the widget
-	DockWidget->setWidget(w); // and set the widget again - there should be no error
-	DockWidget->setToggleViewActionMode(ads::CDockWidget::ActionModeShow);
-	DockWidget->setIcon(svgIcon(":/adsdemo/images/date_range.svg"));
-	ViewMenu->addAction(DockWidget->toggleViewAction());
-	return DockWidget;
-}
-
-
-//============================================================================
-static ads::CDockWidget* createFileSystemTreeDockWidget(QMenu* ViewMenu)
-{
-	static int FileSystemCount = 0;
-	QTreeView* w = new QTreeView();
-	w->setFrameShape(QFrame::NoFrame);
-	QFileSystemModel* m = new QFileSystemModel(w);
-	m->setRootPath(QDir::currentPath());
-	w->setModel(m);
-	ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Filesystem %1")
-		.arg(FileSystemCount++));
-	DockWidget->setWidget(w);
-	ViewMenu->addAction(DockWidget->toggleViewAction());
-	// We disable focus to test focus highlighting if the dock widget content
-	// does not support focus
-	w->setFocusPolicy(Qt::NoFocus);
-    return DockWidget;
-}
-
-//============================================================================
-static ads::CDockWidget* createEditorWidget(QMenu* ViewMenu)
-{
-	static int EditorCount = 0;
-	QPlainTextEdit* w = new QPlainTextEdit();
-	w->setPlaceholderText("This is an editor. If you close the editor, it will be "
-		"deleted. Enter your text here.");
-	w->setStyleSheet("border: none");
-	ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Editor %1").arg(EditorCount++));
-	DockWidget->setWidget(w);
-	DockWidget->setIcon(svgIcon(":/adsdemo/images/edit.svg"));
-	DockWidget->setFeature(ads::CDockWidget::CustomCloseHandling, true);
-	ViewMenu->addAction(DockWidget->toggleViewAction());
-
-	QMenu* OptionsMenu = new QMenu(DockWidget);
-	OptionsMenu->setTitle(QObject::tr("Options"));
-	OptionsMenu->setToolTip(OptionsMenu->title());
-	OptionsMenu->setIcon(svgIcon(":/adsdemo/images/custom-menu-button.svg"));
-	auto MenuAction = OptionsMenu->menuAction();
-	// The object name of the action will be set for the QToolButton that
-	// is created in the dock area title bar. You can use this name for CSS
-	// styling
-	MenuAction->setObjectName("optionsMenu");
-	DockWidget->setTitleBarActions({OptionsMenu->menuAction()});
-	auto a = OptionsMenu->addAction(QObject::tr("Clear Editor"));
-	w->connect(a, SIGNAL(triggered()), SLOT(clear()));
-
-	return DockWidget;
-}
-
 
 //===========================================================================
 /**
@@ -249,58 +152,6 @@ public:
 };
 
 
-//============================================================================
-static ads::CDockWidget* createTableWidget(QMenu* ViewMenu)
-{
-	static int TableCount = 0;
-	auto w = new CMinSizeTableWidget();
-	ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Table %1").arg(TableCount++));
-	static int colCount = 5;
-	static int rowCount = 30;
-	w->setColumnCount(colCount);
-	w->setRowCount(rowCount);
-	for (int col = 0; col < colCount; ++col)
-	{
-	  w->setHorizontalHeaderItem(col, new QTableWidgetItem(QString("Col %1").arg(col+1)));
-	  for (int row = 0; row < rowCount; ++row)
-	  {
-		 w->setItem(row, col, new QTableWidgetItem(QString("T %1-%2").arg(row + 1).arg(col+1)));
-	  }
-	}
-	DockWidget->setWidget(w);
-	DockWidget->setIcon(svgIcon(":/adsdemo/images/grid_on.svg"));
-	DockWidget->setMinimumSizeHintMode(ads::CDockWidget::MinimumSizeHintFromContent);
-	auto ToolBar = DockWidget->createDefaultToolBar();
-	auto Action = ToolBar->addAction(svgIcon(":/adsdemo/images/fullscreen.svg"), "Toggle Fullscreen");
-	QObject::connect(Action, &QAction::triggered, [=]()
-		{
-			if (DockWidget->isFullScreen())
-			{
-				DockWidget->showNormal();
-			}
-			else
-			{
-				DockWidget->showFullScreen();
-			}
-		});
-	ViewMenu->addAction(DockWidget->toggleViewAction());
-	return DockWidget;
-}
-
-
-#ifdef Q_OS_WIN
-//============================================================================
-static ads::CDockWidget* createActiveXWidget(QMenu* ViewMenu, QWidget* parent = nullptr)
-{
-   static int ActiveXCount = 0;
-   QAxWidget* w = new QAxWidget("{6bf52a52-394a-11d3-b153-00c04f79faa6}", parent);
-   ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Active X %1").arg(ActiveXCount++));
-   DockWidget->setWidget(w);
-   ViewMenu->addAction(DockWidget->toggleViewAction());
-   return DockWidget;
-}
-#endif
-
 
 //============================================================================
 /**
@@ -314,6 +165,7 @@ struct MainWindowPrivate
 	QWidgetAction* PerspectiveListAction = nullptr;
 	QComboBox* PerspectiveComboBox = nullptr;
 	ads::CDockManager* DockManager = nullptr;
+	ads::CDockWidget* WindowTitleTestDockWidget = nullptr;
 
 	MainWindowPrivate(CMainWindow* _public) : _this(_public) {}
 
@@ -346,14 +198,181 @@ struct MainWindowPrivate
 	 * Restore the perspective listo of the dock manager
 	 */
 	void restorePerspectives();
+
+	/**
+	 * Creates a dock widget with a file system tree view
+	 */
+	ads::CDockWidget* createFileSystemTreeDockWidget()
+	{
+		static int FileSystemCount = 0;
+		QTreeView* w = new QTreeView();
+		w->setFrameShape(QFrame::NoFrame);
+		QFileSystemModel* m = new QFileSystemModel(w);
+		m->setRootPath(QDir::currentPath());
+		w->setModel(m);
+		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Filesystem %1")
+			.arg(FileSystemCount++));
+		DockWidget->setWidget(w);
+		ui.menuView->addAction(DockWidget->toggleViewAction());
+		// We disable focus to test focus highlighting if the dock widget content
+		// does not support focus
+		w->setFocusPolicy(Qt::NoFocus);
+		auto ToolBar = DockWidget->createDefaultToolBar();
+		ToolBar->addAction(ui.actionSaveState);
+		ToolBar->addAction(ui.actionRestoreState);
+		return DockWidget;
+	}
+
+	/**
+	 * Create a dock widget with a QCalendarWidget
+	 */
+	ads::CDockWidget* createCalendarDockWidget()
+	{
+		static int CalendarCount = 0;
+		QCalendarWidget* w = new QCalendarWidget();
+		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Calendar %1").arg(CalendarCount++));
+		// The following lines are for testing the setWidget() and takeWidget()
+		// functionality
+		DockWidget->setWidget(w);
+		DockWidget->setWidget(w); // what happens if we set a widget if a widget is already set
+		DockWidget->takeWidget(); // we remove the widget
+		DockWidget->setWidget(w); // and set the widget again - there should be no error
+		DockWidget->setToggleViewActionMode(ads::CDockWidget::ActionModeShow);
+		DockWidget->setIcon(svgIcon(":/adsdemo/images/date_range.svg"));
+		ui.menuView->addAction(DockWidget->toggleViewAction());
+		auto ToolBar = DockWidget->createDefaultToolBar();
+		ToolBar->addAction(ui.actionSaveState);
+		ToolBar->addAction(ui.actionRestoreState);
+		return DockWidget;
+	}
+
+
+	/**
+	 * Create dock widget with a text label
+	 */
+	ads::CDockWidget* createLongTextLabelDockWidget()
+	{
+		static int LabelCount = 0;
+		QLabel* l = new QLabel();
+		l->setWordWrap(true);
+		l->setAlignment(Qt::AlignTop | Qt::AlignLeft);
+		l->setText(QString("Label %1 %2 - Lorem ipsum dolor sit amet, consectetuer adipiscing elit. "
+			"Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque "
+			"penatibus et magnis dis parturient montes, nascetur ridiculus mus. "
+			"Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. "
+			"Nulla consequat massa quis enim. Donec pede justo, fringilla vel, "
+			"aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, "
+			"imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede "
+			"mollis pretium. Integer tincidunt. Cras dapibus. Vivamus elementum "
+			"semper nisi. Aenean vulputate eleifend tellus. Aenean leo ligula, "
+			"porttitor eu, consequat vitae, eleifend ac, enim. Aliquam lorem ante, "
+			"dapibus in, viverra quis, feugiat a, tellus. Phasellus viverra nulla "
+			"ut metus varius laoreet.")
+			.arg(LabelCount)
+			.arg(QTime::currentTime().toString("hh:mm:ss:zzz")));
+
+		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Label %1").arg(LabelCount++));
+		DockWidget->setWidget(l);
+		ui.menuView->addAction(DockWidget->toggleViewAction());
+		return DockWidget;
+	}
+
+
+	/**
+	 * Creates as imple editor widget
+	 */
+	ads::CDockWidget* createEditorWidget()
+	{
+		static int EditorCount = 0;
+		QPlainTextEdit* w = new QPlainTextEdit();
+		w->setPlaceholderText("This is an editor. If you close the editor, it will be "
+			"deleted. Enter your text here.");
+		w->setStyleSheet("border: none");
+		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Editor %1").arg(EditorCount++));
+		DockWidget->setWidget(w);
+		DockWidget->setIcon(svgIcon(":/adsdemo/images/edit.svg"));
+		DockWidget->setFeature(ads::CDockWidget::CustomCloseHandling, true);
+		ui.menuView->addAction(DockWidget->toggleViewAction());
+
+		QMenu* OptionsMenu = new QMenu(DockWidget);
+		OptionsMenu->setTitle(QObject::tr("Options"));
+		OptionsMenu->setToolTip(OptionsMenu->title());
+		OptionsMenu->setIcon(svgIcon(":/adsdemo/images/custom-menu-button.svg"));
+		auto MenuAction = OptionsMenu->menuAction();
+		// The object name of the action will be set for the QToolButton that
+		// is created in the dock area title bar. You can use this name for CSS
+		// styling
+		MenuAction->setObjectName("optionsMenu");
+		DockWidget->setTitleBarActions({OptionsMenu->menuAction()});
+		auto a = OptionsMenu->addAction(QObject::tr("Clear Editor"));
+		w->connect(a, SIGNAL(triggered()), SLOT(clear()));
+
+		return DockWidget;
+	}
+
+	/**
+	 * Create a table widget
+	 */
+	ads::CDockWidget* createTableWidget()
+	{
+		static int TableCount = 0;
+		auto w = new CMinSizeTableWidget();
+		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Table %1").arg(TableCount++));
+		static int colCount = 5;
+		static int rowCount = 30;
+		w->setColumnCount(colCount);
+		w->setRowCount(rowCount);
+		for (int col = 0; col < colCount; ++col)
+		{
+		  w->setHorizontalHeaderItem(col, new QTableWidgetItem(QString("Col %1").arg(col+1)));
+		  for (int row = 0; row < rowCount; ++row)
+		  {
+			 w->setItem(row, col, new QTableWidgetItem(QString("T %1-%2").arg(row + 1).arg(col+1)));
+		  }
+		}
+		DockWidget->setWidget(w);
+		DockWidget->setIcon(svgIcon(":/adsdemo/images/grid_on.svg"));
+		DockWidget->setMinimumSizeHintMode(ads::CDockWidget::MinimumSizeHintFromContent);
+		auto ToolBar = DockWidget->createDefaultToolBar();
+		auto Action = ToolBar->addAction(svgIcon(":/adsdemo/images/fullscreen.svg"), "Toggle Fullscreen");
+		QObject::connect(Action, &QAction::triggered, [=]()
+			{
+				if (DockWidget->isFullScreen())
+				{
+					DockWidget->showNormal();
+				}
+				else
+				{
+					DockWidget->showFullScreen();
+				}
+			});
+		ui.menuView->addAction(DockWidget->toggleViewAction());
+		return DockWidget;
+	}
+
+
+#ifdef Q_OS_WIN
+	/**
+	 * Creates an ActiveX widget on windows
+	 */
+	ads::CDockWidget* createActiveXWidget(QWidget* parent = nullptr)
+	{
+	   static int ActiveXCount = 0;
+	   QAxWidget* w = new QAxWidget("{6bf52a52-394a-11d3-b153-00c04f79faa6}", parent);
+	   ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Active X %1").arg(ActiveXCount++));
+	   DockWidget->setWidget(w);
+	   ui.menuView->addAction(DockWidget->toggleViewAction());
+	   return DockWidget;
+	}
+#endif
+
 };
 
 //============================================================================
 void MainWindowPrivate::createContent()
 {
 	// Test container docking
-	QMenu* ViewMenu = ui.menuView;
-	auto DockWidget = createCalendarDockWidget(ViewMenu);
+	auto DockWidget = createCalendarDockWidget();
 	DockWidget->setFeature(ads::CDockWidget::DockWidgetClosable, false);
 	auto SpecialDockArea = DockManager->addDockWidget(ads::LeftDockWidgetArea, DockWidget);
 
@@ -363,19 +382,16 @@ void MainWindowPrivate::createContent()
 		//SpecialDockArea->setAllowedAreas({ads::LeftDockWidgetArea, ads::RightDockWidgetArea}); // just for testing
 	}
 
-	DockManager->addDockWidget(ads::LeftDockWidgetArea, createLongTextLabelDockWidget(ViewMenu));
-	auto FileSystemWidget = createFileSystemTreeDockWidget(ViewMenu);
-	auto ToolBar = FileSystemWidget->createDefaultToolBar();
-	ToolBar->addAction(ui.actionSaveState);
-	ToolBar->addAction(ui.actionRestoreState);
+	DockWidget = createLongTextLabelDockWidget();
+	WindowTitleTestDockWidget = DockWidget;
+	DockWidget->setFeature(ads::CDockWidget::DockWidgetFocusable, false);
+	DockManager->addDockWidget(ads::LeftDockWidgetArea, DockWidget);
+	auto FileSystemWidget = createFileSystemTreeDockWidget();
 	FileSystemWidget->setFeature(ads::CDockWidget::DockWidgetFloatable, false);
 	appendFeaturStringToWindowTitle(FileSystemWidget);
 	DockManager->addDockWidget(ads::BottomDockWidgetArea, FileSystemWidget);
 
-	FileSystemWidget = createFileSystemTreeDockWidget(ViewMenu);
-	ToolBar = FileSystemWidget->createDefaultToolBar();
-	ToolBar->addAction(ui.actionSaveState);
-	ToolBar->addAction(ui.actionRestoreState);
+	FileSystemWidget = createFileSystemTreeDockWidget();
 	FileSystemWidget->setFeature(ads::CDockWidget::DockWidgetMovable, false);
 	FileSystemWidget->setFeature(ads::CDockWidget::DockWidgetFloatable, false);
 	appendFeaturStringToWindowTitle(FileSystemWidget);
@@ -387,7 +403,7 @@ void MainWindowPrivate::createContent()
 
 	// We create a calendar widget and clear all flags to prevent the dock area
 	// from closing
-	DockWidget = createCalendarDockWidget(ViewMenu);
+	DockWidget = createCalendarDockWidget();
 	DockWidget->setTabToolTip(QString("Tab ToolTip\nHodie est dies magna"));
 	auto DockArea = DockManager->addDockWidget(ads::CenterDockWidgetArea, DockWidget, TopDockArea);
 
@@ -403,18 +419,18 @@ void MainWindowPrivate::createContent()
 	TitleBar->insertWidget(Index + 1, CustomButton);
 	QObject::connect(CustomButton, &QToolButton::clicked, [=]()
 	{
-		auto DockWidget = createEditorWidget(ui.menuView);
+		auto DockWidget = createEditorWidget();
 		DockWidget->setFeature(ads::CDockWidget::DockWidgetDeleteOnClose, true);
 		DockManager->addDockWidgetTabToArea(DockWidget, DockArea);
 		_this->connect(DockWidget, SIGNAL(closeRequested()), SLOT(onEditorCloseRequested()));
 	});
 
 	// Test dock area docking
-	auto RighDockArea = DockManager->addDockWidget(ads::RightDockWidgetArea, createLongTextLabelDockWidget(ViewMenu), TopDockArea);
-	DockManager->addDockWidget(ads::TopDockWidgetArea, createLongTextLabelDockWidget(ViewMenu), RighDockArea);
-	auto BottomDockArea = DockManager->addDockWidget(ads::BottomDockWidgetArea, createLongTextLabelDockWidget(ViewMenu), RighDockArea);
-	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(ViewMenu), RighDockArea);
-	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(ViewMenu), BottomDockArea);
+	auto RighDockArea = DockManager->addDockWidget(ads::RightDockWidgetArea, createLongTextLabelDockWidget(), TopDockArea);
+	DockManager->addDockWidget(ads::TopDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
+	auto BottomDockArea = DockManager->addDockWidget(ads::BottomDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
+	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
+	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(), BottomDockArea);
 
     auto Action = ui.menuTests->addAction(QString("Set %1 Floating").arg(DockWidget->windowTitle()));
     DockWidget->connect(Action, SIGNAL(triggered()), SLOT(setFloating()));
@@ -424,9 +440,9 @@ void MainWindowPrivate::createContent()
     DockWidget->connect(Action, SIGNAL(triggered()), SLOT(raise()));
 
 #ifdef Q_OS_WIN
-    if (!DockManager->configFlags().testFlag(ads::CDockManager::OpaqueUndocking))
+    if (!ads::CDockManager::testConfigFlag(ads::CDockManager::OpaqueUndocking))
     {
-    	DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(ViewMenu), RighDockArea);
+    	DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(), RighDockArea);
     }
 #endif
 
@@ -482,6 +498,9 @@ void MainWindowPrivate::createActions()
 	ui.menuTests->addSeparator();
 	a = ui.menuTests->addAction("Show Status Dialog");
 	_this->connect(a, SIGNAL(triggered()), SLOT(showStatusDialog()));
+
+	a = ui.menuTests->addAction("Toggle Label 0 Window Title");
+	_this->connect(a, SIGNAL(triggered()), SLOT(toggleDockWidgetWindowTitle()));
 	ui.menuTests->addSeparator();
 }
 
@@ -576,7 +595,11 @@ CMainWindow::CMainWindow(QWidget *parent) :
 
 	// uncomment the following line to enable focus highlighting of the dock
 	// widget that has the focus
-	// CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+	CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+
+	// uncomment if you would like to enable an equal distribution of the
+	// available size of a splitter to all contained dock widgets
+	// CDockManager::setConfigFlag(CDockManager::EqualSplitOnInsertion, true);
 
 	// Now create the dock manager and its content
 	d->DockManager = new CDockManager(this);
@@ -680,7 +703,7 @@ void CMainWindow::createEditor()
 	QObject* Sender = sender();
 	QVariant vFloating = Sender->property("Floating");
 	bool Floating = vFloating.isValid() ? vFloating.toBool() : true;
-	auto DockWidget = createEditorWidget(d->ui.menuView);
+	auto DockWidget = d->createEditorWidget();
 	DockWidget->setFeature(ads::CDockWidget::DockWidgetDeleteOnClose, true);
     connect(DockWidget, SIGNAL(closeRequested()), SLOT(onEditorCloseRequested()));
 
@@ -713,7 +736,7 @@ void CMainWindow::onEditorCloseRequested()
 //============================================================================
 void CMainWindow::createTable()
 {
-	auto DockWidget = createTableWidget(d->ui.menuView);
+	auto DockWidget = d->createTableWidget();
 	DockWidget->setFeature(ads::CDockWidget::DockWidgetDeleteOnClose, true);
 	auto FloatingWidget = d->DockManager->addDockWidgetFloating(DockWidget);
     FloatingWidget->move(QPoint(40, 40));
@@ -727,3 +750,20 @@ void CMainWindow::showStatusDialog()
 	Dialog.exec();
 }
 
+
+//============================================================================
+void CMainWindow::toggleDockWidgetWindowTitle()
+{
+	QString Title = d->WindowTitleTestDockWidget->windowTitle();
+	int i = Title.indexOf(" (Test)");
+	if (-1 == i)
+	{
+		Title += " (Test)";
+	}
+	else
+	{
+		Title = Title.left(i);
+	}
+	d->WindowTitleTestDockWidget->setWindowTitle(Title);
+}
+

demo/MainWindow.h

@@ -64,6 +64,7 @@ private slots:
 	void createTable();
 	void onEditorCloseRequested();
 	void showStatusDialog();
+	void toggleDockWidgetWindowTitle();
 };
 
 #endif // MAINWINDOW_H

demo/demo.py

@@ -10,11 +10,11 @@ from PyQt5.QtCore import (QCoreApplication, QDir, Qt, QSettings, QSignalBlocker,
                           QtCriticalMsg, QtFatalMsg, QSize)
 from PyQt5.QtGui import (QGuiApplication, QIcon, QCloseEvent)
 from PyQt5.QtWidgets import (QCalendarWidget, QFileSystemModel, QFrame, QLabel,
-                            QMenu, QTreeView, QAction, QWidgetAction,
-                            QComboBox, QStyle, QSizePolicy, QInputDialog, QMenu,
-                            QToolButton, QWidget, QPlainTextEdit,
-                            QTableWidget, QTableWidgetItem, QApplication,
-                            QMessageBox)
+                             QMenu, QTreeView, QAction, QWidgetAction,
+                             QComboBox, QStyle, QSizePolicy, QInputDialog, QMenu,
+                             QToolButton, QWidget, QPlainTextEdit,
+                             QTableWidget, QTableWidgetItem, QApplication,
+                             QMessageBox)
 try:
     from PyQt5.QAxContainer import QAxWidget
 except ImportError:
@@ -48,7 +48,7 @@ def features_string(dock_widget: QtAds.CDockWidget) -> str:
     f = dock_widget.features()
     closable = f & QtAds.CDockWidget.DockWidgetClosable
     movable = f & QtAds.CDockWidget.DockWidgetMovable
-    floatable = f &QtAds.CDockWidget.DockWidgetFloatable
+    floatable = f & QtAds.CDockWidget.DockWidgetFloatable
     
     return "c{} m{} f{}".format("+" if closable else "-",
                                 "+" if movable else "-",
@@ -69,91 +69,7 @@ def svg_icon(filename: str):
     icon = QIcon(filename)
     icon.addPixmap(icon.pixmap(92))
     return icon
-    
 
-def create_long_text_label_dock_widget(view_menu: QMenu) -> QtAds.CDockWidget:
-    label = QLabel()
-    label.setWordWrap(True)
-    label.setAlignment(Qt.AlignTop | Qt.AlignLeft)
-    label.setText('''\
-Label {} {} - Lorem ipsum dolor sit amet, consectetuer
-adipiscing elit.  Aenean commodo ligula eget dolor. Aenean massa. Cum
-sociis natoque penatibus et magnis dis parturient montes, nascetur
-ridiculus mus.  Donec quam felis, ultricies nec, pellentesque eu, pretium
-quis, sem.  Nulla consequat massa quis enim. Donec pede justo, fringilla
-vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut,
-imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis
-pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi.
-Aenean vulputate eleifend tellus. Aenean leo ligula, porttitor eu,
-consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, viverra
-quis, feugiat a, tellus. Phasellus viverra nulla ut metus varius laoreet.
-    '''.format(_State.label_count, datetime.datetime.now().strftime("%H:%M:%S:%f")))
-    dock_widget = QtAds.CDockWidget("Label {}".format(_State.label_count))
-    _State.label_count += 1
-    dock_widget.setWidget(label)
-
-    view_menu.addAction(dock_widget.toggleViewAction())
-    return dock_widget
-
-
-def create_calendar_dock_widget(view_menu: QMenu) -> QtAds.CDockWidget:
-    widget = QCalendarWidget()
-
-    dock_widget = QtAds.CDockWidget("Calendar {}".format(_State.calendar_count))
-    _State.calendar_count += 1
-    # The following lines are for testing the setWidget() and takeWidget()
-    # functionality
-    dock_widget.setWidget(widget)
-    dock_widget.setWidget(widget)  # what happens if we set a widget if a widget is already set
-    dock_widget.takeWidget()  # we remove the widget
-    dock_widget.setWidget(widget)  # and set the widget again - there should be no error
-    dock_widget.setToggleViewActionMode(QtAds.CDockWidget.ActionModeShow)
-    dock_widget.setIcon(svg_icon(":/adsdemo/images/date_range.svg"))
-    view_menu.addAction(dock_widget.toggleViewAction())
-    return dock_widget
-
-
-def create_file_system_tree_dock_widget(view_menu: QMenu) -> QtAds.CDockWidget:
-    widget = QTreeView()
-    widget.setFrameShape(QFrame.NoFrame)
-
-    m = QFileSystemModel(widget)
-    m.setRootPath(QDir.currentPath())
-    widget.setModel(m)
-
-    dock_widget = QtAds.CDockWidget("Filesystem {}".format(_State.file_system_count))
-    _State.file_system_count += 1
-    dock_widget.setWidget(widget)
-    view_menu.addAction(dock_widget.toggleViewAction())
-    return dock_widget
- 
- 
-def create_editor_widget(view_menu: QMenu) -> QtAds.CDockWidget: 
-    widget = QPlainTextEdit()
-    widget.setPlaceholderText("This is an editor. If you close the editor, it will be "
-        "deleted. Enter your text here.")
-    widget.setStyleSheet("border: none")
-    dock_widget = QtAds.CDockWidget("Editor {}".format(_State.editor_count))
-    _State.editor_count += 1
-    dock_widget.setWidget(widget)
-    dock_widget.setIcon(svg_icon(":/adsdemo/images/edit.svg"))
-    dock_widget.setFeature(QtAds.CDockWidget.CustomCloseHandling, True)
-    view_menu.addAction(dock_widget.toggleViewAction())
-
-    options_menu = QMenu(dock_widget)
-    options_menu.setTitle("Options")
-    options_menu.setToolTip(options_menu.title())
-    options_menu.setIcon(svg_icon(":/adsdemo/images/custom-menu-button.svg"))
-    menu_action = options_menu.menuAction()
-    # The object name of the action will be set for the QToolButton that
-    # is created in the dock area title bar. You can use this name for CSS
-    # styling
-    menu_action.setObjectName("options_menu")
-    dock_widget.setTitleBarActions([options_menu.menuAction()])
-    a = options_menu.addAction("Clear Editor")
-    a.triggered.connect(widget.clear)
-
-    return dock_widget
 
 class CMinSizeTableWidget(QTableWidget):
     """Custom QTableWidget with a minimum size hint to test CDockWidget
@@ -162,43 +78,6 @@ class CMinSizeTableWidget(QTableWidget):
     def minimumSizeHint(self) -> QSize:
         return QSize(300, 100)
 
-def create_table_widget(view_menu: QMenu) -> QtAds.CDockWidget: 
-    widget = CMinSizeTableWidget()
-    dock_widget = QtAds.CDockWidget("Table {}".format(_State.table_count))
-    _State.table_count += 1
-    COLCOUNT = 5
-    ROWCOUNT = 30
-    widget.setColumnCount(COLCOUNT)
-    widget.setRowCount(ROWCOUNT)
-    for col in range(ROWCOUNT):
-        widget.setHorizontalHeaderItem(col, QTableWidgetItem("Col {}".format(col+1)))
-        for row in range(ROWCOUNT):
-            widget.setItem(row, col, QTableWidgetItem("T {:}-{:}".format(row+1, col+1)))
-    
-    dock_widget.setWidget(widget)
-    dock_widget.setIcon(svg_icon(":/adsdemo/images/grid_on.svg"))
-    dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromContent)
-    toolbar = dock_widget.createDefaultToolBar()
-    action = toolbar.addAction(svg_icon(":/adsdemo/images/fullscreen.svg"), "Toggle Fullscreen")
-    def on_toggle_fullscreen():
-        if dock_widget.isFullScreen():
-            dock_widget.showNormal()
-        else:
-            dock_widget.showFullScreen()
-    action.triggered.connect(on_toggle_fullscreen)
-    view_menu.addAction(dock_widget.toggleViewAction())
-    return dock_widget
-    
-    
-if ACTIVEX_AVAILABLE:
-    def create_activex_widget(view_menu: QMenu, parent: QWidget = None) -> QtAds.CDockWidget: 
-        widget = QAxWidget("{6bf52a52-394a-11d3-b153-00c04f79faa6}", parent)
-        dock_widget = QtAds.CDockWidget("Active X {}".format(_State.activex_count))
-        _State.activex_count += 1
-        dock_widget.setWidget(widget)
-        view_menu.addAction(dock_widget.toggleViewAction())
-        return dock_widget
-    
     
 class CCustomComponentsFactory(QtAds.CDockComponentsFactory):
 
@@ -235,37 +114,45 @@ class MainWindow(MainWindowUI, MainWindowBase):
         
         # uncomment the following line if you want to use opaque undocking and
         # opaque splitter resizing
-        #QtAds.CDockManager.setConfigFlags(QtAds.CDockManager.DefaultOpaqueConfig);
+        #QtAds.CDockManager.setConfigFlags(QtAds.CDockManager.DefaultOpaqueConfig)
         
         # uncomment the following line if you want a fixed tab width that does
         # not change if the visibility of the close button changes
         #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.RetainTabSizeWhenCloseButtonHidden, True)
 
         # uncomment the following line if you don't want close button on DockArea's title bar
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasCloseButton, false);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasCloseButton, False)
 
         # uncomment the following line if you don't want undock button on DockArea's title bar
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasUndockButton, false);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasUndockButton, False)
 
         # uncomment the following line if you don't want tabs menu button on DockArea's title bar
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasTabsMenuButton, false);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasTabsMenuButton, False)
 
         # uncomment the following line if you don't want disabled buttons to appear on DockArea's title bar
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHideDisabledButtons, true);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHideDisabledButtons, True)
 
         # uncomment the following line if you want to show tabs menu button on DockArea's title bar only when there are more than one tab and at least of them has elided title
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaDynamicTabsMenuButtonVisibility, true);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaDynamicTabsMenuButtonVisibility, True)
 
         # uncomment the following line if you want floating container to always show application title instead of active dock widget's title
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FloatingContainerHasWidgetTitle, false);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FloatingContainerHasWidgetTitle, False)
 
         # uncomment the following line if you want floating container to show active dock widget's icon instead of always showing application icon
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FloatingContainerHasWidgetIcon, true);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FloatingContainerHasWidgetIcon, True)
 
         # uncomment the following line if you want a central widget in the main dock container (the dock manager) without a titlebar
         # If you enable this code, you can test it in the demo with the Calendar 0
         # dock widget.
-        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.HideSingleCentralWidgetTitleBar, true);
+        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.HideSingleCentralWidgetTitleBar, True)
+        
+        # uncomment the following line to enable focus highlighting of the dock
+        # widget that has the focus
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FocusHighlighting, True)
+        
+        # uncomment if you would like to enable an equal distribution of the
+        # available size of a splitter to all contained dock widgets
+        # QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.EqualSplitOnInsertion, True)
 
         # Now create the dock manager and its content
         self.dock_manager = QtAds.CDockManager(self)
@@ -288,8 +175,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
 
     def create_content(self):
         # Test container docking
-        view_menu = self.menuView
-        dock_widget = create_calendar_dock_widget(view_menu)
+        dock_widget = self.create_calendar_dock_widget()
         dock_widget.setFeature(QtAds.CDockWidget.DockWidgetClosable, False)
         special_dock_area = self.dock_manager.addDockWidget(QtAds.LeftDockWidgetArea, dock_widget)
         
@@ -297,8 +183,10 @@ class MainWindow(MainWindowUI, MainWindowBase):
         special_dock_area.setAllowedAreas(QtAds.OuterDockAreas)
         # special_dock_area.setAllowedAreas(QtAds.LeftDockWidgetArea | QtAds.RightDockWidgetArea) # just for testing
         
-        self.dock_manager.addDockWidget(QtAds.LeftDockWidgetArea, create_long_text_label_dock_widget(view_menu))
-        file_system_widget = create_file_system_tree_dock_widget(view_menu)
+        dock_widget = self.create_long_text_label_dock_widget()
+        dock_widget.setFeature(QtAds.CDockWidget.DockWidgetFocusable, False)
+        self.dock_manager.addDockWidget(QtAds.LeftDockWidgetArea, dock_widget)
+        file_system_widget = self.create_file_system_tree_dock_widget()
         tool_bar = file_system_widget.createDefaultToolBar()
         tool_bar.addAction(self.actionSaveState)
         tool_bar.addAction(self.actionRestoreState)
@@ -306,10 +194,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
         append_feature_string_to_window_title(file_system_widget)
         self.dock_manager.addDockWidget(QtAds.BottomDockWidgetArea, file_system_widget)
         
-        file_system_widget = create_file_system_tree_dock_widget(view_menu)
-        tool_bar = file_system_widget.createDefaultToolBar()
-        tool_bar.addAction(self.actionSaveState)
-        tool_bar.addAction(self.actionRestoreState)
+        file_system_widget = self.create_file_system_tree_dock_widget()
         file_system_widget.setFeature(QtAds.CDockWidget.DockWidgetMovable, False)
         file_system_widget.setFeature(QtAds.CDockWidget.DockWidgetFloatable, False)
         append_feature_string_to_window_title(file_system_widget)
@@ -321,7 +206,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
 
         # We create a calendar widget and clear all flags to prevent the dock area
         # from closing
-        dock_widget = create_calendar_dock_widget(view_menu)
+        dock_widget = self.create_calendar_dock_widget()
         dock_widget.setTabToolTip("Tab ToolTip\nHodie est dies magna")
         dock_area = self.dock_manager.addDockWidget(QtAds.CenterDockWidgetArea, dock_widget, top_dock_area)
 
@@ -336,7 +221,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
         index = title_bar.indexOf(title_bar.tabBar())
         title_bar.insertWidget(index + 1, custom_button)
         def on_button_clicked():
-            dock_widget = create_editor_widget(self.menuView)
+            dock_widget = self.create_editor_widget()
             dock_widget.setFeature(QtAds.CDockWidget.DockWidgetDeleteOnClose, True)
             self.dock_manager.addDockWidgetTabToArea(dock_widget, dock_area)
             dock_widget.closeRequested.connect(self.on_editor_close_requested)
@@ -345,21 +230,21 @@ class MainWindow(MainWindowUI, MainWindowBase):
         # Test dock area docking
         right_dock_area = self.dock_manager.addDockWidget(
             QtAds.RightDockWidgetArea,
-            create_long_text_label_dock_widget(view_menu), top_dock_area)
+            self.create_long_text_label_dock_widget(), top_dock_area)
         self.dock_manager.addDockWidget(
             QtAds.TopDockWidgetArea,
-            create_long_text_label_dock_widget(view_menu), right_dock_area)
+            self.create_long_text_label_dock_widget(), right_dock_area)
     
         bottom_dock_area = self.dock_manager.addDockWidget(
             QtAds.BottomDockWidgetArea,
-            create_long_text_label_dock_widget(view_menu), right_dock_area)
+            self.create_long_text_label_dock_widget(), right_dock_area)
 
         self.dock_manager.addDockWidget(
             QtAds.CenterDockWidgetArea,
-            create_long_text_label_dock_widget(view_menu), right_dock_area)
+            self.create_long_text_label_dock_widget(), right_dock_area)
         self.dock_manager.addDockWidget(
             QtAds.CenterDockWidgetArea,
-            create_long_text_label_dock_widget(view_menu), bottom_dock_area)
+            self.create_long_text_label_dock_widget(), bottom_dock_area)
 
         
         action = self.menuTests.addAction("Set {} Floating".format(dock_widget.windowTitle()))
@@ -373,7 +258,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
             flags = self.dock_manager.configFlags()
             if flags & QtAds.CDockManager.OpaqueUndocking:
                 self.dock_manager.addDockWidget(QtAds.CenterDockWidgetArea,
-                    create_activex_widget(view_menu), right_dock_area)
+                                                self.create_activex_widget(), right_dock_area)
                     
         for dock_widget in self.dock_manager.dockWidgetsMap().values():
             dock_widget.viewToggled.connect(self.on_view_toggled)
@@ -460,13 +345,13 @@ class MainWindow(MainWindowUI, MainWindowBase):
         if dock_widget is None:
             return
 
-        qDebug("{} visibility_changed({})".format(dock_widget.objectName(), visible))
+        # qDebug("{} visibility_changed({})".format(dock_widget.objectName(), visible))
             
     def create_editor(self):
         sender = self.sender()
         floating = sender.property("Floating")
         print("Floating:", floating)
-        dock_widget = create_editor_widget(self.menuView)
+        dock_widget = self.create_editor_widget()
         dock_widget.setFeature(QtAds.CDockWidget.DockWidgetDeleteOnClose, True)
         dock_widget.closeRequested.connect(self.on_editor_close_requested)
         
@@ -484,7 +369,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
             dock_widget.closeDockWidget()
             
     def create_table(self):
-        dock_widget = create_table_widget(self.menuView)
+        dock_widget = self.create_table_widget()
         dock_widget.setFeature(QtAds.CDockWidget.DockWidgetDeleteOnClose, True)
         floating_widget = self.dock_manager.addDockWidgetFloating(dock_widget)
         floating_widget.move(QPoint(40, 40))
@@ -545,6 +430,124 @@ class MainWindow(MainWindowUI, MainWindowBase):
             self.perspective_combo_box.setCurrentText(perspective_name)
             self.save_perspectives()
 
+    def create_long_text_label_dock_widget(self) -> QtAds.CDockWidget:
+        label = QLabel()
+        label.setWordWrap(True)
+        label.setAlignment(Qt.AlignTop | Qt.AlignLeft)
+        label.setText('''Label {} {} - Lorem ipsum dolor sit amet, consectetuer
+    adipiscing elit.  Aenean commodo ligula eget dolor. Aenean massa. Cum
+    sociis natoque penatibus et magnis dis parturient montes, nascetur
+    ridiculus mus.  Donec quam felis, ultricies nec, pellentesque eu, pretium
+    quis, sem.  Nulla consequat massa quis enim. Donec pede justo, fringilla
+    vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut,
+    imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis
+    pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi.
+    Aenean vulputate eleifend tellus. Aenean leo ligula, porttitor eu,
+    consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, viverra
+    quis, feugiat a, tellus. Phasellus viverra nulla ut metus varius laoreet.
+        '''.format(_State.label_count, datetime.datetime.now().strftime("%H:%M:%S:%f")))
+        dock_widget = QtAds.CDockWidget("Label {}".format(_State.label_count))
+        _State.label_count += 1
+        dock_widget.setWidget(label)
+
+        self.menuView.addAction(dock_widget.toggleViewAction())
+        return dock_widget
+
+    def create_calendar_dock_widget(self) -> QtAds.CDockWidget:
+        widget = QCalendarWidget()
+
+        dock_widget = QtAds.CDockWidget("Calendar {}".format(_State.calendar_count))
+        _State.calendar_count += 1
+        # The following lines are for testing the setWidget() and takeWidget()
+        # functionality
+        dock_widget.setWidget(widget)
+        dock_widget.setWidget(widget)  # what happens if we set a widget if a widget is already set
+        dock_widget.takeWidget()  # we remove the widget
+        dock_widget.setWidget(widget)  # and set the widget again - there should be no error
+        dock_widget.setToggleViewActionMode(QtAds.CDockWidget.ActionModeShow)
+        dock_widget.setIcon(svg_icon(":/adsdemo/images/date_range.svg"))
+        self.menuView.addAction(dock_widget.toggleViewAction())
+        return dock_widget
+
+    def create_file_system_tree_dock_widget(self) -> QtAds.CDockWidget:
+        widget = QTreeView()
+        widget.setFrameShape(QFrame.NoFrame)
+
+        m = QFileSystemModel(widget)
+        m.setRootPath(QDir.currentPath())
+        widget.setModel(m)
+
+        dock_widget = QtAds.CDockWidget("Filesystem {}".format(_State.file_system_count))
+        _State.file_system_count += 1
+        dock_widget.setWidget(widget)
+        self.menuView.addAction(dock_widget.toggleViewAction())
+        return dock_widget
+
+    def create_editor_widget(self) -> QtAds.CDockWidget:
+        widget = QPlainTextEdit()
+        widget.setPlaceholderText("This is an editor. If you close the editor, it will be "
+                                  "deleted. Enter your text here.")
+        widget.setStyleSheet("border: none")
+        dock_widget = QtAds.CDockWidget("Editor {}".format(_State.editor_count))
+        _State.editor_count += 1
+        dock_widget.setWidget(widget)
+        dock_widget.setIcon(svg_icon(":/adsdemo/images/edit.svg"))
+        dock_widget.setFeature(QtAds.CDockWidget.CustomCloseHandling, True)
+        self.menuView.addAction(dock_widget.toggleViewAction())
+
+        options_menu = QMenu(dock_widget)
+        options_menu.setTitle("Options")
+        options_menu.setToolTip(options_menu.title())
+        options_menu.setIcon(svg_icon(":/adsdemo/images/custom-menu-button.svg"))
+        menu_action = options_menu.menuAction()
+        # The object name of the action will be set for the QToolButton that
+        # is created in the dock area title bar. You can use this name for CSS
+        # styling
+        menu_action.setObjectName("options_menu")
+        dock_widget.setTitleBarActions([options_menu.menuAction()])
+        a = options_menu.addAction("Clear Editor")
+        a.triggered.connect(widget.clear)
+
+        return dock_widget
+
+
+    def create_table_widget(self) -> QtAds.CDockWidget:
+        widget = CMinSizeTableWidget()
+        dock_widget = QtAds.CDockWidget("Table {}".format(_State.table_count))
+        _State.table_count += 1
+        COLCOUNT = 5
+        ROWCOUNT = 30
+        widget.setColumnCount(COLCOUNT)
+        widget.setRowCount(ROWCOUNT)
+        for col in range(ROWCOUNT):
+            widget.setHorizontalHeaderItem(col, QTableWidgetItem("Col {}".format(col + 1)))
+            for row in range(ROWCOUNT):
+                widget.setItem(row, col, QTableWidgetItem("T {:}-{:}".format(row + 1, col + 1)))
+
+        dock_widget.setWidget(widget)
+        dock_widget.setIcon(svg_icon(":/adsdemo/images/grid_on.svg"))
+        dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromContent)
+        toolbar = dock_widget.createDefaultToolBar()
+        action = toolbar.addAction(svg_icon(":/adsdemo/images/fullscreen.svg"), "Toggle Fullscreen")
+
+        def on_toggle_fullscreen():
+            if dock_widget.isFullScreen():
+                dock_widget.showNormal()
+            else:
+                dock_widget.showFullScreen()
+
+        action.triggered.connect(on_toggle_fullscreen)
+        self.menuView.addAction(dock_widget.toggleViewAction())
+        return dock_widget
+
+    def create_activex_widget(self, parent: QWidget = None) -> QtAds.CDockWidget:
+        widget = QAxWidget("{6bf52a52-394a-11d3-b153-00c04f79faa6}", parent)
+        dock_widget = QtAds.CDockWidget("Active X {}".format(_State.activex_count))
+        _State.activex_count += 1
+        dock_widget.setWidget(widget)
+        self.menuView.addAction(dock_widget.toggleViewAction())
+        return dock_widget
+
 
 def my_message_output(type, context, msg):
     if type == QtDebugMsg:

doc/user-guide.md

@@ -30,7 +30,7 @@
 ## Configuration Flags
 
 The Advanced Docking System has a number of global configuration options to
-configure the design and the functionality of the docking system. Each
+configure the design and the functionality of the docking system. Eachs
 configuration will be explained in detail in the following sections.
 
 ### Setting Configuration Flags

examples/deleteonclose/main.cpp

@@ -11,7 +11,13 @@ int main(int argc, char *argv[])
     QMainWindow w;
 
     ads::CDockManager::setConfigFlag(ads::CDockManager::FocusHighlighting, true);
+    ads::CDockManager::setConfigFlag(ads::CDockManager::AllTabsHaveCloseButton, true);
     auto dockManager = new ads::CDockManager(&w);
+    QObject::connect(dockManager, &ads::CDockManager::focusedDockWidgetChanged, [] (ads::CDockWidget* old, ads::CDockWidget* now) {
+        static int Count = 0;
+    	qDebug() << Count++ << " CDockManager::focusedDockWidgetChanged old: " << (old ? old->objectName() : "-") << " now: " << now->objectName() << " visible: " << now->isVisible();
+        now->widget()->setFocus();
+    });
 
     QAction *action = new QAction("New Delete On Close", &w);
     w.menuBar()->addAction(action);

examples/simple/MainWindow.cpp

@@ -3,12 +3,13 @@
 #include "ui_MainWindow.h"
 
 #include <QLabel>
+#include <QTimer>
 
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent),
     ui(new Ui::MainWindow)
 {
-    ui->setupUi(this);
+    /*ui->setupUi(this);
 
     // Create the dock manager. Because the parent parameter is a QMainWindow
     // the dock manager registers itself as the central widget.
@@ -31,7 +32,67 @@ MainWindow::MainWindow(QWidget *parent) :
 	ui->menuView->addAction(DockWidget->toggleViewAction());
 
 	// Add the dock widget to the top dock widget area
-	m_DockManager->addDockWidget(ads::TopDockWidgetArea, DockWidget);
+	m_DockManager->addDockWidget(ads::TopDockWidgetArea, DockWidget);*/
+
+    ui->setupUi(this);
+
+    // Create the dock manager. Because the parent parameter is a QMainWindow
+    // the dock manager registers itself as the central widget.
+	m_DockManager1 = new ads::CDockManager(this);
+
+	// Create example content label - this can be any application specific
+	// widget
+	ads::CDockWidget* DockWidget;
+	{
+		QLabel* l = new QLabel();
+		l->setWordWrap(true);
+		l->setAlignment(Qt::AlignTop | Qt::AlignLeft);
+		l->setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ");
+
+		// Create a dock widget with the title Label 1 and set the created label
+		// as the dock widget content
+		DockWidget = new ads::CDockWidget("Label 1");
+		DockWidget->setWidget(l);
+	}
+
+	ads::CDockWidget* DockWidget2;
+	{
+		QLabel* l = new QLabel();
+		l->setWordWrap(true);
+		l->setAlignment(Qt::AlignTop | Qt::AlignLeft);
+		l->setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ");
+
+		// Create a dock widget with the title Label 1 and set the created label
+		// as the dock widget content
+		DockWidget2 = new ads::CDockWidget("Label 2");
+		DockWidget2->setWidget(l);
+	}
+
+
+	// Add the toggleViewAction of the dock widget to the menu to give
+	// the user the possibility to show the dock widget if it has been closed
+	ui->menuView->addAction(DockWidget->toggleViewAction());
+
+	// Add the dock widget to the top dock widget area
+	m_DockManager1->addDockWidget(ads::TopDockWidgetArea, DockWidget);
+
+
+	auto funcRemoveFirstManager = [=]()
+	{
+		m_DockManager1->removeDockWidget(DockWidget);
+
+		delete m_DockManager1;
+		m_DockManager1 = nullptr;
+	};
+	QTimer::singleShot(3000, funcRemoveFirstManager);
+
+	auto funcAddSecondManager = [=]()
+	{
+		m_DockManager2 = new ads::CDockManager(this);
+
+		m_DockManager2->addDockWidget(ads::TopDockWidgetArea, DockWidget);
+	};
+	QTimer::singleShot(5000, funcAddSecondManager);
 }
 
 MainWindow::~MainWindow()

examples/simple/MainWindow.h

@@ -20,7 +20,8 @@ public:
 
 private:
     Ui::MainWindow *ui;
-    ads::CDockManager* m_DockManager;
+    ads::CDockManager* m_DockManager1;
+    ads::CDockManager* m_DockManager2;
 };
 
 #endif // MAINWINDOW_H

setup.py

@@ -159,8 +159,20 @@ class build_ext(sipdistutils.build_ext):
             return sip_bin
 
         raise SystemExit('Could not find PyQt SIP binary.')
+        
+    def _sip_sipfiles_dir(self):
+        sip_dir = super()._sip_sipfiles_dir()
+        if os.path.exists(sip_dir):
+            return sip_dir
+        
+        return os.path.join(sys.prefix, 'sip', 'PyQt5')
 
     def _sip_compile(self, sip_bin, source, sbf):
+        target_dir = os.path.dirname(__file__) if self.inplace else self.build_lib
+        pyi = os.path.join(target_dir, "PyQtAds", "QtAds", "ads.pyi")
+        if not os.path.exists(os.path.dirname(pyi)):
+            os.makedirs(os.path.dirname(pyi))
+        
         cmd = [sip_bin]
         if hasattr(self, 'sip_opts'):
             cmd += self.sip_opts
@@ -173,11 +185,20 @@ class build_ext(sipdistutils.build_ext):
             "-I", self.inc_dir,
             "-c", self._sip_output_dir(),
             "-b", sbf,
+            "-y", pyi,
             "-w", "-o"]
 
         cmd += shlex.split(self.pyqt_sip_flags)  # use same SIP flags as for PyQt5
         cmd.append(source)
         self.spawn(cmd)
+        
+        if os.path.exists(pyi):
+            with open(pyi) as f:
+                content = f.readlines()
+            with open(pyi, "w") as f:
+                for line in content:
+                    if not line.startswith("class ads"):
+                        f.write(line)
 
     def swig_sources (self, sources, extension=None):
         if not self.extensions:
@@ -210,9 +231,7 @@ class build_ext(sipdistutils.build_ext):
 
         return super().swig_sources(sources, extension)
 
-    def build_extension(self, ext):
-        # /usr/bin/rcc -name ads ../../Qt-Advanced-Docking-System/src/ads.qrc -o release/qrc_ads.cpp
-        
+    def build_extension(self, ext):        
         cppsources = [source for source in ext.sources if source.endswith(".cpp")]
         headersources = ['src/DockAreaTitleBar_p.h']
 
@@ -288,6 +307,17 @@ class build_ext(sipdistutils.build_ext):
                 ext.sources.append(out_file)
 
         sipdistutils.build_ext.build_extension(self, ext)
+        
+        import inspect
+        sys.path.append(os.path.join(self.build_lib, 'PyQtAds', 'QtAds'))
+        import ads
+
+        with open(os.path.join(self.build_lib, 'PyQtAds', 'QtAds', '__init__.py'), 'w') as f:
+            f.write('from .._version import *\n')
+            f.write('from .ads import ads\n')
+            for name, member in sorted(inspect.getmembers(ads.ads)):
+                if not name.startswith('_'):
+                    f.write('{0} = ads.{0}\n'.format(name))
 
 
 class ProcessResourceCommand(cmd.Command):

sip/DockFocusController.sip

@@ -0,0 +1,31 @@
+%Import QtWidgets/QtWidgetsmod.sip
+
+%If (Qt_5_0_0 -)
+
+namespace ads
+{
+
+/**
+ * Manages focus styling of dock widgets and handling of focus changes
+ */
+class CDockFocusController : QObject
+{
+    %TypeHeaderCode
+    #include <DockFocusController.h>
+    %End
+    
+public:
+	CDockFocusController(ads::CDockManager* DockManager);
+	virtual ~CDockFocusController();
+
+	void notifyWidgetOrAreaRelocation(QWidget* RelocatedWidget);
+	void notifyFloatingWidgetDrop(ads::CFloatingDockContainer* FloatingWidget);
+
+public slots:
+	void setDockWidgetFocused(ads::CDockWidget* focusedNow);
+    
+}; // class DockFocusController
+};
+ // namespace ads
+ 
+%End

sip/DockManager.sip

@@ -133,6 +133,8 @@ protected:
 	void removeDockContainer(ads::CDockContainerWidget* DockContainer /TransferBack/);
 	ads::CDockOverlay* containerOverlay() const;
 	ads::CDockOverlay* dockAreaOverlay() const;
+    void notifyWidgetOrAreaRelocation(QWidget* RelocatedWidget);
+    void notifyFloatingWidgetDrop(ads::CFloatingDockContainer* FloatingWidget);
 
     virtual void showEvent(QShowEvent *event);
 
@@ -166,6 +168,8 @@ public:
 		FloatingContainerHasWidgetTitle,
 		FloatingContainerHasWidgetIcon,
 		HideSingleCentralWidgetTitleBar,
+        FocusHighlighting,
+        EqualSplitOnInsertion,
         DefaultDockAreaButtons,
 		DefaultBaseConfig,
         DefaultOpaqueConfig,
@@ -211,6 +215,7 @@ public:
 
 public slots:
 	void openPerspective(const QString& PerspectiveName);
+    void setDockWidgetFocused(ads::CDockWidget* DockWidget);
 
 signals:
 	void perspectiveListChanged();
@@ -223,6 +228,7 @@ signals:
     void dockAreaCreated(ads::CDockAreaWidget* DockArea);
     void dockWidgetAboutToBeRemoved(ads::CDockWidget* DockWidget);
     void dockWidgetRemoved(ads::CDockWidget* DockWidget);
+    void focusedDockWidgetChanged(ads::CDockWidget* old, ads::CDockWidget* now);
 };
 
 };

sip/DockWidget.sip

@@ -31,6 +31,7 @@ public:
 		DockWidgetFloatable,
 		DockWidgetDeleteOnClose,
         CustomCloseHandling,
+        DockWidgetFocusable,
         DefaultDockWidgetFeatures,
         AllDockWidgetFeatures,
 		NoDockWidgetFeatures

sip/DockWidgetTab.sip

@@ -34,6 +34,7 @@ public:
 	bool isClosable() const;
 	virtual bool event(QEvent *e);
 	void setElideMode(Qt::TextElideMode mode);
+    void updateStyle();
 
 public slots:
 	virtual void setVisible(bool visible);

sip/ads.sip

@@ -11,6 +11,7 @@
 %Include DockComponentsFactory.sip
 %Include DockContainerWidget.sip
 %Include DockingStateReader.sip
+%Include DockFocusController.sip
 %Include DockManager.sip
 %Include DockOverlay.sip
 %Include DockSplitter.sip

src/CMakeLists.txt

@@ -25,7 +25,7 @@ set(ads_SRCS
     DockComponentsFactory.cpp
     ads.qrc
 )
-set(ads_INSTALL_INCLUDE 
+set(ads_HEADERS
     ads_globals.h
     DockAreaTabBar.h
     DockAreaTitleBar.h
@@ -47,13 +47,13 @@ set(ads_INSTALL_INCLUDE
 )
 if (UNIX)
     set(ads_SRCS linux/FloatingWidgetTitleBar.cpp ${ads_SRCS})
-    set(ads_INSTALL_INCLUDE linux/FloatingWidgetTitleBar.h ${ads_INSTALL_INCLUDE})
+    set(ads_HEADERS linux/FloatingWidgetTitleBar.h ${ads_HEADERS})
 endif()
 if(BUILD_STATIC)
-    add_library(qtadvanceddocking STATIC ${ads_SRCS})
+    add_library(qtadvanceddocking STATIC ${ads_SRCS} ${ads_HEADERS})
     target_compile_definitions(qtadvanceddocking PUBLIC ADS_STATIC)
 else()
-    add_library(qtadvanceddocking SHARED ${ads_SRCS})
+    add_library(qtadvanceddocking SHARED ${ads_SRCS} ${ads_HEADERS})
     target_compile_definitions(qtadvanceddocking PRIVATE ADS_SHARED_EXPORT)
 endif()
 target_link_libraries(qtadvanceddocking PUBLIC Qt5::Core Qt5::Gui Qt5::Widgets)
@@ -75,7 +75,7 @@ write_basic_package_version_file(
     VERSION ${VERSION_SHORT}
     COMPATIBILITY SameMajorVersion
 )
-install(FILES ${ads_INSTALL_INCLUDE}
+install(FILES ${ads_HEADERS}
     DESTINATION include 
     COMPONENT headers
 )
@@ -104,5 +104,5 @@ install(FILES qtadvanceddockingConfig.cmake "${CMAKE_CURRENT_BINARY_DIR}/qtadvan
 
 target_include_directories(qtadvanceddocking PUBLIC
     $<INSTALL_INTERFACE:include>
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
 )
-

src/DockAreaTabBar.cpp

@@ -138,6 +138,8 @@ CDockAreaTabBar::CDockAreaTabBar(CDockAreaWidget* parent) :
 	d->TabsLayout->addStretch(1);
 	d->TabsContainerWidget->setLayout(d->TabsLayout);
 	setWidget(d->TabsContainerWidget);
+
+    setFocusPolicy(Qt::NoFocus);
 }
 
 
@@ -456,6 +458,11 @@ bool CDockAreaTabBar::eventFilter(QObject *watched, QEvent *event)
 		 updateGeometry();
 		 break;
 
+    // Setting the text of a tab will cause a LayoutRequest event
+    case QEvent::LayoutRequest:
+         updateGeometry();
+         break;
+
 	default:
 		break;
 	}

src/DockAreaTitleBar.cpp

@@ -103,10 +103,11 @@ struct DockAreaTitleBarPrivate
 
 	/**
 	 * Returns true if the given config flag is set
+	 * Convenience function to ease config flag testing
 	 */
 	static bool testConfigFlag(CDockManager::eConfigFlag Flag)
 	{
-		return CDockManager::configFlags().testFlag(Flag);
+		return CDockManager::testConfigFlag(Flag);
 	}
 
 	/**
@@ -162,7 +163,7 @@ void DockAreaTitleBarPrivate::createButtons()
 
 	// Undock button
 	UndockButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasUndockButton));
-	UndockButton->setObjectName("undockButton");
+	UndockButton->setObjectName("detachGroupButton");
 	UndockButton->setAutoRaise(true);
 	internal::setToolTip(UndockButton, QObject::tr("Detach Group"));
 	internal::setButtonIcon(UndockButton, QStyle::SP_TitleBarNormalButton, ads::DockAreaUndockIcon);
@@ -172,7 +173,7 @@ void DockAreaTitleBarPrivate::createButtons()
 
 	// Close button
 	CloseButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasCloseButton));
-	CloseButton->setObjectName("closeButton");
+	CloseButton->setObjectName("dockAreaCloseButton");
 	CloseButton->setAutoRaise(true);
 	internal::setButtonIcon(CloseButton, QStyle::SP_TitleBarCloseButton, ads::DockAreaCloseIcon);
 	if (testConfigFlag(CDockManager::DockAreaCloseButtonClosesTab))
@@ -212,7 +213,7 @@ IFloatingWidget* DockAreaTitleBarPrivate::makeAreaFloating(const QPoint& Offset,
 {
 	QSize Size = DockArea->size();
 	this->DragState = DragState;
-	bool OpaqueUndocking = CDockManager::configFlags().testFlag(CDockManager::OpaqueUndocking) ||
+	bool OpaqueUndocking = CDockManager::testConfigFlag(CDockManager::OpaqueUndocking) ||
 		(DraggingFloatingWidget != DragState);
 	CFloatingDockContainer* FloatingDockContainer = nullptr;
 	IFloatingWidget* FloatingWidget;
@@ -268,6 +269,8 @@ CDockAreaTitleBar::CDockAreaTitleBar(CDockAreaWidget* parent) :
 	d->createTabBar();
 	d->Layout->addWidget(new CSpacerWidget(this));
 	d->createButtons();
+
+    setFocusPolicy(Qt::NoFocus);
 }
 
 
@@ -466,7 +469,7 @@ void CDockAreaTitleBar::mousePressEvent(QMouseEvent* ev)
 		d->DragStartMousePos = ev->pos();
 		d->DragState = DraggingMousePressed;
 
-		if (CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting))
+		if (CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 		{
 			d->TabBar->currentTab()->setFocus(Qt::OtherFocusReason);
 		}
@@ -576,12 +579,12 @@ void CDockAreaTitleBar::contextMenuEvent(QContextMenuEvent* ev)
 	}
 
 	QMenu Menu(this);
-	auto Action = Menu.addAction(tr("Detach Area"), this, SLOT(onUndockButtonClicked()));
+	auto Action = Menu.addAction(tr("Detach Group"), this, SLOT(onUndockButtonClicked()));
 	Action->setEnabled(d->DockArea->features().testFlag(CDockWidget::DockWidgetFloatable));
 	Menu.addSeparator();
-	Action = Menu.addAction(tr("Close Area"), this, SLOT(onCloseButtonClicked()));
+	Action = Menu.addAction(tr("Close Group"), this, SLOT(onCloseButtonClicked()));
 	Action->setEnabled(d->DockArea->features().testFlag(CDockWidget::DockWidgetClosable));
-	Menu.addAction(tr("Close Other Areas"), d->DockArea, SLOT(closeOtherAreas()));
+	Menu.addAction(tr("Close Other Groups"), d->DockArea, SLOT(closeOtherAreas()));
 	Menu.exec(ev->globalPos());
 }
 
@@ -600,11 +603,12 @@ int CDockAreaTitleBar::indexOf(QWidget *widget) const
 }
 
 //============================================================================
-CTitleBarButton::CTitleBarButton(bool visible /*= true*/, QWidget* parent /*= nullptr*/) : tTitleBarButton(parent),
-Visible(visible),
-HideWhenDisabled(DockAreaTitleBarPrivate::testConfigFlag(CDockManager::DockAreaHideDisabledButtons))
+CTitleBarButton::CTitleBarButton(bool visible, QWidget* parent)
+	: tTitleBarButton(parent),
+	  Visible(visible),
+	  HideWhenDisabled(CDockManager::testConfigFlag(CDockManager::DockAreaHideDisabledButtons))
 {
-
+    setFocusPolicy(Qt::NoFocus);
 }
 
 //============================================================================

src/DockAreaWidget.cpp

@@ -136,6 +136,10 @@ public:
 			m_CurrentWidget = nullptr;
 			m_CurrentIndex = -1;
 		}
+		else if (indexOf(Widget) < m_CurrentIndex)
+		{
+			--m_CurrentIndex;
+		}
 		m_Widgets.removeOne(Widget);
 	}
 
@@ -443,12 +447,15 @@ void CDockAreaWidget::insertDockWidget(int index, CDockWidget* DockWidget,
 void CDockAreaWidget::removeDockWidget(CDockWidget* DockWidget)
 {
     ADS_PRINT("CDockAreaWidget::removeDockWidget");
-	auto NextOpenDockWidget = nextOpenDockWidget(DockWidget);
+    auto CurrentDockWidget = currentDockWidget();
+  	auto NextOpenDockWidget = (DockWidget == CurrentDockWidget) ? nextOpenDockWidget(DockWidget) : nullptr;
 
 	d->ContentsLayout->removeWidget(DockWidget);
 	auto TabWidget = DockWidget->tabWidget();
 	TabWidget->hide();
 	d->tabBar()->removeTab(TabWidget);
+	TabWidget->setParent(DockWidget);
+	DockWidget->setDockArea(nullptr);
 	CDockContainerWidget* DockContainer = dockContainer();
 	if (NextOpenDockWidget)
 	{
@@ -460,7 +467,7 @@ void CDockAreaWidget::removeDockWidget(CDockWidget* DockWidget)
 		DockContainer->removeDockArea(this);
 		this->deleteLater();
 	}
-	else
+	else if (DockWidget == CurrentDockWidget)
 	{
 		// if contents layout is not empty but there are no more open dock
 		// widgets, then we need to hide the dock area because it does not
@@ -731,7 +738,7 @@ void CDockAreaWidget::updateTitleBarVisibility()
 		return;
 	}
 
-    if (CDockManager::configFlags().testFlag(CDockManager::AlwaysShowTabs))
+    if (CDockManager::testConfigFlag(CDockManager::AlwaysShowTabs))
     {
         return;
     }
@@ -739,7 +746,7 @@ void CDockAreaWidget::updateTitleBarVisibility()
 	if (d->TitleBar)
 	{
 		bool Hidden = Container->hasTopLevelDockWidget() && (Container->isFloating()
-			|| CDockManager::configFlags().testFlag(CDockManager::HideSingleCentralWidgetTitleBar));
+			|| CDockManager::testConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar));
 		d->TitleBar->setVisible(!Hidden);
 	}
 }

src/DockContainerWidget.cpp

@@ -147,12 +147,12 @@ public:
 	 * Adds dock widget to container and returns the dock area that contains
 	 * the inserted dock widget
 	 */
-	CDockAreaWidget* dockWidgetIntoContainer(DockWidgetArea area, CDockWidget* Dockwidget);
+	CDockAreaWidget* addDockWidgetToContainer(DockWidgetArea area, CDockWidget* Dockwidget);
 
 	/**
 	 * Adds dock widget to a existing DockWidgetArea
 	 */
-	CDockAreaWidget* dockWidgetIntoDockArea(DockWidgetArea area, CDockWidget* Dockwidget,
+	CDockAreaWidget* addDockWidgetToDockArea(DockWidgetArea area, CDockWidget* Dockwidget,
 		CDockAreaWidget* TargetDockArea);
 
 	/**
@@ -299,11 +299,29 @@ public:
 	CDockSplitter* newSplitter(Qt::Orientation orientation, QWidget* parent = nullptr)
 	{
 		CDockSplitter* s = new CDockSplitter(orientation, parent);
-		s->setOpaqueResize(CDockManager::configFlags().testFlag(CDockManager::OpaqueSplitterResize));
+		s->setOpaqueResize(CDockManager::testConfigFlag(CDockManager::OpaqueSplitterResize));
 		s->setChildrenCollapsible(false);
 		return s;
 	}
 
+	/**
+	 * Ensures equal distribution of the sizes of a splitter if an dock widget
+	 * is inserted from code
+	 */
+	void adjustSplitterSizesOnInsertion(QSplitter* Splitter, qreal LastRatio = 1.0)
+	{
+		int AreaSize = (Splitter->orientation() == Qt::Horizontal) ? Splitter->width() : Splitter->height();
+		auto SplitterSizes = Splitter->sizes();
+
+		qreal TotRatio = SplitterSizes.size() - 1.0 + LastRatio;
+		for(int i = 0; i < SplitterSizes.size() -1; i++)
+		{
+			SplitterSizes[i] = AreaSize / TotRatio;
+		}
+		SplitterSizes.back() = AreaSize * LastRatio / TotRatio;
+		Splitter->setSizes(SplitterSizes);
+	}
+
 
 // private slots: ------------------------------------------------------------
 	void onDockAreaViewToggled(bool Visible)
@@ -1013,7 +1031,7 @@ bool DockContainerWidgetPrivate::restoreChildNodes(CDockingStateReader& s,
 
 
 //============================================================================
-CDockAreaWidget* DockContainerWidgetPrivate::dockWidgetIntoContainer(DockWidgetArea area,
+CDockAreaWidget* DockContainerWidgetPrivate::addDockWidgetToContainer(DockWidgetArea area,
 	CDockWidget* Dockwidget)
 {
 	CDockAreaWidget* NewDockArea = new CDockAreaWidget(DockManager, _this);
@@ -1126,7 +1144,7 @@ void DockContainerWidgetPrivate::dumpRecursive(int level, QWidget* widget)
 
 
 //============================================================================
-CDockAreaWidget* DockContainerWidgetPrivate::dockWidgetIntoDockArea(DockWidgetArea area,
+CDockAreaWidget* DockContainerWidgetPrivate::addDockWidgetToDockArea(DockWidgetArea area,
 	CDockWidget* Dockwidget, CDockAreaWidget* TargetDockArea)
 {
 	if (CenterDockWidgetArea == area)
@@ -1144,16 +1162,29 @@ CDockAreaWidget* DockContainerWidgetPrivate::dockWidgetIntoDockArea(DockWidgetAr
 	int index = TargetAreaSplitter ->indexOf(TargetDockArea);
 	if (TargetAreaSplitter->orientation() == InsertParam.orientation())
 	{
-        ADS_PRINT("TargetAreaSplitter->orientation() == InsertParam.orientation()");
+		ADS_PRINT("TargetAreaSplitter->orientation() == InsertParam.orientation()");
 		TargetAreaSplitter->insertWidget(index + InsertParam.insertOffset(), NewDockArea);
+		// do nothing, if flag is not enabled
+		if (CDockManager::testConfigFlag(CDockManager::EqualSplitOnInsertion))
+		{
+			adjustSplitterSizesOnInsertion(TargetAreaSplitter);
+		}
+
 	}
 	else
 	{
-        ADS_PRINT("TargetAreaSplitter->orientation() != InsertParam.orientation()");
+		ADS_PRINT("TargetAreaSplitter->orientation() != InsertParam.orientation()");
+		auto TargetAreaSizes = TargetAreaSplitter->sizes();
 		QSplitter* NewSplitter = newSplitter(InsertParam.orientation());
 		NewSplitter->addWidget(TargetDockArea);
+
 		insertWidgetIntoSplitter(NewSplitter, NewDockArea, InsertParam.append());
 		TargetAreaSplitter->insertWidget(index, NewSplitter);
+		if (CDockManager::testConfigFlag(CDockManager::EqualSplitOnInsertion))
+		{
+			TargetAreaSplitter->setSizes(TargetAreaSizes);
+			adjustSplitterSizesOnInsertion(NewSplitter);
+		}
 	}
 
 	appendDockAreas({NewDockArea});
@@ -1211,11 +1242,11 @@ CDockAreaWidget* CDockContainerWidget::addDockWidget(DockWidgetArea area, CDockW
 	Dockwidget->setDockManager(d->DockManager);
 	if (DockAreaWidget)
 	{
-		return d->dockWidgetIntoDockArea(area, Dockwidget, DockAreaWidget);
+		return d->addDockWidgetToDockArea(area, Dockwidget, DockAreaWidget);
 	}
 	else
 	{
-		return d->dockWidgetIntoContainer(area, Dockwidget);
+		return d->addDockWidgetToContainer(area, Dockwidget);
 	}
 }
 
@@ -1288,9 +1319,9 @@ void CDockContainerWidget::removeDockArea(CDockAreaWidget* area)
 	internal::hideEmptyParentSplitters(Splitter);
 
 	// Remove this area from cached areas
-	const auto& cache = d->LastAddedAreaCache;
-	if (auto p = std::find(cache, cache+sizeof(cache)/sizeof(cache[0]), area)) {
-		d->LastAddedAreaCache[std::distance(cache, p)] = nullptr;
+	auto p = std::find(std::begin(d->LastAddedAreaCache), std::end(d->LastAddedAreaCache), area);
+	if (p != std::end(d->LastAddedAreaCache)) {
+		*p = nullptr;
 	}
 
 	// If splitter has more than 1 widgets, we are finished and can leave
@@ -1485,16 +1516,6 @@ void CDockContainerWidget::dropWidget(QWidget* Widget, DockWidgetArea DropArea,
 	// If there was a top level widget before the drop, then it is not top
 	// level widget anymore
 	CDockWidget::emitTopLevelEventForWidget(SingleDockWidget, false);
-	CDockWidget* DockWidget = qobject_cast<CDockWidget*>(Widget);
-	if (!DockWidget)
-	{
-		CDockAreaWidget* DockArea = qobject_cast<CDockAreaWidget*>(Widget);
-		auto OpenDockWidgets = DockArea->openedDockWidgets();
-		if (OpenDockWidgets.count() == 1)
-		{
-			DockWidget = OpenDockWidgets[0];
-		}
-	}
 
 	window()->activateWindow();
 	d->DockManager->notifyWidgetOrAreaRelocation(Widget);

src/DockFocusController.cpp

@@ -15,6 +15,7 @@
 
 #include <QPointer>
 #include <QApplication>
+#include <QAbstractButton>
 
 #include "DockWidget.h"
 #include "DockAreaWidget.h"
@@ -38,10 +39,12 @@ struct DockFocusControllerPrivate
 	CDockFocusController *_this;
 	QPointer<CDockWidget> FocusedDockWidget = nullptr;
 	QPointer<CDockAreaWidget> FocusedArea = nullptr;
+	CDockWidget* OldFocusedDockWidget = nullptr;
 #ifdef Q_OS_LINUX
-        QPointer<CFloatingDockContainer> FloatingWidget = nullptr;
+     QPointer<CFloatingDockContainer> FloatingWidget = nullptr;
 #endif
 	CDockManager* DockManager;
+    bool ForceFocusChangedSignal = false;
 
 	/**
 	 * Private data constructor
@@ -103,6 +106,11 @@ DockFocusControllerPrivate::DockFocusControllerPrivate(
 //============================================================================
 void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
 {
+	if (!DockWidget->features().testFlag(CDockWidget::DockWidgetFocusable))
+	{
+		return;
+	}
+
 	CDockAreaWidget* NewFocusedDockArea = nullptr;
 	if (FocusedDockWidget)
 	{
@@ -154,14 +162,38 @@ void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
     }
 #endif
 
-    if (old != DockWidget)
+    if (old == DockWidget && !ForceFocusChangedSignal)
+    {
+    	return;
+    }
+
+    ForceFocusChangedSignal = false;
+    if (DockWidget->isVisible())
     {
     	emit DockManager->focusedDockWidgetChanged(old, DockWidget);
     }
+    else
+    {
+    	OldFocusedDockWidget = old;
+    	QObject::connect(DockWidget, SIGNAL(visibilityChanged(bool)), _this, SLOT(onDockWidgetVisibilityChanged(bool)));
+    }
 }
 
 
 
+//============================================================================
+void CDockFocusController::onDockWidgetVisibilityChanged(bool Visible)
+{
+    auto Sender = sender();
+    auto DockWidget = qobject_cast<ads::CDockWidget*>(Sender);
+    disconnect(Sender, SIGNAL(visibilityChanged(bool)), this, SLOT(onDockWidgetVisibilityChanged(bool)));
+    if (DockWidget && Visible)
+	{
+        emit d->DockManager->focusedDockWidgetChanged(d->OldFocusedDockWidget, DockWidget);
+	}
+}
+
+
 //============================================================================
 CDockFocusController::CDockFocusController(CDockManager* DockManager) :
 	Super(DockManager),
@@ -188,17 +220,43 @@ void CDockFocusController::onApplicationFocusChanged(QWidget* focusedOld, QWidge
 		return;
 	}
 
-	Q_UNUSED(focusedOld)
+    ADS_PRINT("CDockFocusController::onApplicationFocusChanged "
+    	<< " old: " << focusedOld << " new: " << focusedNow);
 	if (!focusedNow)
 	{
 		return;
 	}
 
-	CDockWidget* DockWidget = nullptr;
+	// If the close button in another tab steals the focus from the current
+	// active dock widget content, i.e. if the user clicks its close button,
+	// then we immediately give the focus back to the previous focused widget
+	// focusedOld
+	if (CDockManager::testConfigFlag(CDockManager::AllTabsHaveCloseButton))
+	{
+		auto OtherDockWidgetTab = internal::findParent<CDockWidgetTab*>(focusedNow);
+		if (OtherDockWidgetTab && focusedOld)
+		{
+			focusedOld->setFocus();
+			return;
+		}
+	}
+
+    CDockWidget* DockWidget = nullptr;
 	auto DockWidgetTab = qobject_cast<CDockWidgetTab*>(focusedNow);
 	if (DockWidgetTab)
 	{
-		DockWidget = DockWidgetTab->dockWidget();
+		DockWidget = DockWidgetTab->dockWidget();      
+        // If the DockWidgetTab "steals" the focus from a widget in the same
+        // DockWidget, then we immediately give the focus back to the previous
+        // focused widget focusedOld
+        if (focusedOld)
+        {
+            auto OldFocusedDockWidget = internal::findParent<CDockWidget*>(focusedOld);
+            if (OldFocusedDockWidget && OldFocusedDockWidget == DockWidget)
+            {
+                focusedOld->setFocus();
+            }
+        }
 	}
 
 	if (!DockWidget)
@@ -267,20 +325,22 @@ void CDockFocusController::notifyWidgetOrAreaRelocation(QWidget* DroppedWidget)
 	}
 
 	CDockWidget* DockWidget = qobject_cast<CDockWidget*>(DroppedWidget);
-	if (DockWidget)
-	{
-		CDockManager::setWidgetFocus(DockWidget->tabWidget());
-		return;
-	}
+    if (!DockWidget)
+    {
+        CDockAreaWidget* DockArea = qobject_cast<CDockAreaWidget*>(DroppedWidget);
+        if (DockArea)
+        {
+            DockWidget = DockArea->currentDockWidget();
+        }
+    }
 
-	CDockAreaWidget* DockArea = qobject_cast<CDockAreaWidget*>(DroppedWidget);
-	if (!DockArea)
-	{
-		return;
-	}
+    if (!DockWidget)
+    {
+        return;
+    }
 
-	DockWidget = DockArea->currentDockWidget();
-	CDockManager::setWidgetFocus(DockWidget->tabWidget());
+    d->ForceFocusChangedSignal = true;
+    CDockManager::setWidgetFocus(DockWidget->tabWidget());
 }
 
 
@@ -301,6 +361,7 @@ void CDockFocusController::notifyFloatingWidgetDrop(CFloatingDockContainer* Floa
 	auto DockWidget = vDockWidget.value<CDockWidget*>();
 	if (DockWidget)
 	{
+		d->FocusedDockWidget = nullptr;
 		DockWidget->dockAreaWidget()->setCurrentDockWidget(DockWidget);
 		CDockManager::setWidgetFocus(DockWidget->tabWidget());
 	}

src/DockFocusController.h

@@ -34,6 +34,7 @@ private slots:
 	void onApplicationFocusChanged(QWidget *old, QWidget *now);
 	void onFocusedDockAreaViewToggled(bool Open);
 	void onStateRestored();
+	void onDockWidgetVisibilityChanged(bool Visible);
 
 public:
 	using Super = QObject;
@@ -54,7 +55,7 @@ public:
 	template <class QWidgetPtr>
 	static void setWidgetFocus(QWidgetPtr widget)
 	{
-		if (!CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting))
+		if (!CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 		{
 			return;
 		}

src/DockManager.cpp

@@ -181,11 +181,14 @@ void DockManagerPrivate::loadStylesheet()
 {
 	initResource();
 	QString Result;
+	QString FileName = ":ads/stylesheets/";
+	FileName += CDockManager::testConfigFlag(CDockManager::FocusHighlighting)
+		? "focus_highlighting" : "default";
 #ifdef Q_OS_LINUX
-    QFile StyleSheetFile(":ads/stylesheets/default_linux.css");
-#else
-	QFile StyleSheetFile(":ads/stylesheets/default.css");
+    FileName += "_linux";
 #endif
+    FileName += ".css";
+	QFile StyleSheetFile(FileName);
 	StyleSheetFile.open(QIODevice::ReadOnly);
 	QTextStream StyleSheetStream(&StyleSheetFile);
 	Result = StyleSheetStream.readAll();
@@ -467,7 +470,7 @@ CDockManager::CDockManager(QWidget *parent) :
 	d->Containers.append(this);
 	d->loadStylesheet();
 
-	if (CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting))
+	if (CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 	{
 		d->FocusController = new CDockFocusController(this);
 	}
@@ -705,6 +708,7 @@ void CDockManager::removeDockWidget(CDockWidget* Dockwidget)
 	emit dockWidgetAboutToBeRemoved(Dockwidget);
 	d->DockWidgetsMap.remove(Dockwidget->objectName());
 	CDockContainerWidget::removeDockWidget(Dockwidget);
+	Dockwidget->setDockManager(nullptr);
 	emit dockWidgetRemoved(Dockwidget);
 }
 

src/DockManager.h

@@ -179,6 +179,7 @@ public:
 		HideSingleCentralWidgetTitleBar = 0x100000, //!< If there is only one single visible dock widget in the main dock container (the dock manager) and if this flag is set, then the titlebar of this dock widget will be hidden
 		                                            //!< this only makes sense for non draggable and non floatable widgets and enables the creation of some kind of "central" widget
 		FocusHighlighting = 0x200000, //!< enables styling of focused dock widget tabs or floating widget titlebar
+		EqualSplitOnInsertion = 0x400000, ///!< if enabled, the space is equally distributed to all widgets in a  splitter
 
         DefaultDockAreaButtons = DockAreaHasCloseButton
 							   | DockAreaHasUndockButton
@@ -434,7 +435,7 @@ public:
 	template <class QWidgetPtr>
 	static void setWidgetFocus(QWidgetPtr widget)
 	{
-		if (!CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting))
+		if (!CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 		{
 			return;
 		}

src/DockWidget.cpp

@@ -134,6 +134,7 @@ void DockWidgetPrivate::showDockWidget()
 	{
 		CFloatingDockContainer* FloatingWidget = new CFloatingDockContainer(_this);
 		FloatingWidget->resize(_this->size());
+		TabWidget->show();
 		FloatingWidget->show();
 	}
 	else
@@ -236,7 +237,7 @@ CDockWidget::CDockWidget(const QString &title, QWidget *parent) :
 		SLOT(toggleView(bool)));
 	setToolbarFloatingStyle(false);
 
-	if (CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting))
+	if (CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 	{
 		setFocusPolicy(Qt::ClickFocus);
 	}

src/DockWidget.h

@@ -152,7 +152,8 @@ public:
         DockWidgetFloatable = 0x04,
         DockWidgetDeleteOnClose = 0x08, ///< deletes the dock widget when it is closed
         CustomCloseHandling = 0x10,
-        DefaultDockWidgetFeatures = DockWidgetClosable | DockWidgetMovable | DockWidgetFloatable,
+        DockWidgetFocusable = 0x20,
+        DefaultDockWidgetFeatures = DockWidgetClosable | DockWidgetMovable | DockWidgetFloatable | DockWidgetFocusable,
         AllDockWidgetFeatures = DefaultDockWidgetFeatures | DockWidgetDeleteOnClose | CustomCloseHandling,
         NoDockWidgetFeatures = 0x00
     };

src/DockWidgetTab.cpp

@@ -114,7 +114,7 @@ struct DockWidgetTabPrivate
 	 */
 	bool testConfigFlag(CDockManager::eConfigFlag Flag) const
 	{
-		return CDockManager::configFlags().testFlag(Flag);
+		return CDockManager::testConfigFlag(Flag);
 	}
 
 	/**
@@ -243,7 +243,7 @@ bool DockWidgetTabPrivate::startFloating(eDragState DraggingState)
     ADS_PRINT("startFloating");
 	DragState = DraggingState;
 	IFloatingWidget* FloatingWidget = nullptr;
-	bool OpaqueUndocking = CDockManager::configFlags().testFlag(CDockManager::OpaqueUndocking) ||
+	bool OpaqueUndocking = CDockManager::testConfigFlag(CDockManager::OpaqueUndocking) ||
 		(DraggingFloatingWidget != DraggingState);
 
 	// If section widget has multiple tabs, we take only one tab
@@ -285,7 +285,7 @@ CDockWidgetTab::CDockWidgetTab(CDockWidget* DockWidget, QWidget *parent) :
 	setAttribute(Qt::WA_NoMousePropagation, true);
 	d->DockWidget = DockWidget;
 	d->createLayout();
-	if (CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting))
+	if (CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 	{
 		setFocusPolicy(Qt::ClickFocus);
 	}
@@ -399,7 +399,7 @@ void CDockWidgetTab::mouseMoveEvent(QMouseEvent* ev)
         {
         	// If we undock, we need to restore the initial position of this
         	// tab because it looks strange if it remains on its dragged position
-        	if (d->isDraggingState(DraggingTab) && !CDockManager::configFlags().testFlag(CDockManager::OpaqueUndocking))
+        	if (d->isDraggingState(DraggingTab) && !CDockManager::testConfigFlag(CDockManager::OpaqueUndocking))
 			{
         		parentWidget()->layout()->update();
 			}
@@ -468,7 +468,7 @@ void CDockWidgetTab::setActiveTab(bool active)
 	d->CloseButton->setVisible(DockWidgetClosable && TabHasCloseButton);
 
 	// Focus related stuff
-	if (CDockManager::configFlags().testFlag(CDockManager::FocusHighlighting) && !d->DockWidget->dockManager()->isRestoringState())
+	if (CDockManager::testConfigFlag(CDockManager::FocusHighlighting) && !d->DockWidget->dockManager()->isRestoringState())
 	{
 		bool UpdateFocusStyle = false;
 		if (active && !hasFocus())

src/FloatingDockContainer.cpp

@@ -391,7 +391,7 @@ struct FloatingDockContainerPrivate
 	 */
 	static bool testConfigFlag(CDockManager::eConfigFlag Flag)
 	{
-		return CDockManager::configFlags().testFlag(Flag);
+		return CDockManager::testConfigFlag(Flag);
 	}
 
 	/**

src/FloatingDragPreview.cpp

@@ -112,7 +112,7 @@ void FloatingDragPreviewPrivate::updateDropOverlays(const QPoint &GlobalPos)
 	{
 		ContainerOverlay->hideOverlay();
 		DockAreaOverlay->hideOverlay();
-		if (CDockManager::configFlags().testFlag(CDockManager::DragPreviewIsDynamic))
+		if (CDockManager::testConfigFlag(CDockManager::DragPreviewIsDynamic))
 		{
 			setHidden(false);
 		}
@@ -151,7 +151,7 @@ void FloatingDragPreviewPrivate::updateDropOverlays(const QPoint &GlobalPos)
 		// If there is only one single visible dock area in a container, then
 		// it does not make sense to show a dock overlay because the dock area
 		// would be removed and inserted at the same position
-		if (VisibleDockAreas <= 1)
+		if (VisibleDockAreas == 1)
 		{
 			ContainerOverlay->hideOverlay();
 		}
@@ -167,7 +167,7 @@ void FloatingDragPreviewPrivate::updateDropOverlays(const QPoint &GlobalPos)
 		}
 	}
 
-	if (CDockManager::configFlags().testFlag(CDockManager::DragPreviewIsDynamic))
+	if (CDockManager::testConfigFlag(CDockManager::DragPreviewIsDynamic))
 	{
 		setHidden(DockDropArea != InvalidDockWidgetArea || ContainerDropArea != InvalidDockWidgetArea);
 	}
@@ -203,7 +203,7 @@ void FloatingDragPreviewPrivate::createFloatingWidget()
 	{
 		FloatingWidget->setGeometry(_this->geometry());
 		FloatingWidget->show();
-		if (!CDockManager::configFlags().testFlag(CDockManager::DragPreviewHasWindowFrame))
+		if (!CDockManager::testConfigFlag(CDockManager::DragPreviewHasWindowFrame))
 		{
 			QApplication::processEvents();
 			int FrameHeight = FloatingWidget->frameGeometry().height() - FloatingWidget->geometry().height();
@@ -222,7 +222,7 @@ CFloatingDragPreview::CFloatingDragPreview(QWidget* Content, QWidget* parent) :
 {
 	d->Content = Content;
 	setAttribute(Qt::WA_DeleteOnClose);
-	if (CDockManager::configFlags().testFlag(CDockManager::DragPreviewHasWindowFrame))
+	if (CDockManager::testConfigFlag(CDockManager::DragPreviewHasWindowFrame))
 	{
 		setWindowFlags(
 			Qt::Window | Qt::WindowMaximizeButtonHint | Qt::WindowCloseButtonHint);
@@ -245,7 +245,7 @@ CFloatingDragPreview::CFloatingDragPreview(QWidget* Content, QWidget* parent) :
 	// Create a static image of the widget that should get undocked
 	// This is like some kind preview image like it is uses in drag and drop
 	// operations
-	if (CDockManager::configFlags().testFlag(CDockManager::DragPreviewShowsContentPixmap))
+	if (CDockManager::testConfigFlag(CDockManager::DragPreviewShowsContentPixmap))
 	{
 		d->ContentPreviewPixmap = QPixmap(Content->size());
 		Content->render(&d->ContentPreviewPixmap);
@@ -363,14 +363,14 @@ void CFloatingDragPreview::paintEvent(QPaintEvent* event)
 	}
 
 	QPainter painter(this);
-	if (CDockManager::configFlags().testFlag(CDockManager::DragPreviewShowsContentPixmap))
+	if (CDockManager::testConfigFlag(CDockManager::DragPreviewShowsContentPixmap))
 	{
 		painter.drawPixmap(QPoint(0, 0), d->ContentPreviewPixmap);
 	}
 
 	// If we do not have a window frame then we paint a QRubberBand like
 	// frameless window
-	if (!CDockManager::configFlags().testFlag(CDockManager::DragPreviewHasWindowFrame))
+	if (!CDockManager::testConfigFlag(CDockManager::DragPreviewHasWindowFrame))
 	{
 		QColor Color = palette().color(QPalette::Active, QPalette::Highlight);
 		QPen Pen = painter.pen();

src/ads.qrc

@@ -5,5 +5,10 @@
         <file>images/close-button-disabled.svg</file>
         <file>stylesheets/default_linux.css</file>
         <file>images/close-button-focused.svg</file>
+        <file>stylesheets/focus_highlighting.css</file>
+        <file>stylesheets/focus_highlighting_linux.css</file>
+        <file>images/tabs-menu-button.svg</file>
+        <file>images/detach-button.svg</file>
+        <file>images/detach-button-disabled.svg</file>
     </qresource>
 </RCC>

src/images/close-button-disabled.svg

@@ -59,7 +59,7 @@
      inkscape:snap-bbox="true"
      inkscape:window-maximized="1"
      inkscape:window-y="-8"
-     inkscape:window-x="-8"
+     inkscape:window-x="1912"
      inkscape:window-height="1017"
      inkscape:window-width="1920"
      units="px"
@@ -105,7 +105,7 @@
        transform="translate(628,-140.49998)">
       <path
          id="path846"
-         style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-variant-east-asian:normal;font-feature-settings:normal;font-variation-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;shape-margin:0;inline-size:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:0.50196081;fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate;stop-color:#000000;stop-opacity:1;opacity:1"
+         style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-variant-east-asian:normal;font-feature-settings:normal;font-variation-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;shape-margin:0;inline-size:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#a0a0a0;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate;stop-color:#000000;stop-opacity:1;opacity:1"
          d="M 4.4765625 4.0019531 A 0.5 0.5 0 0 0 4.1464844 4.1464844 A 0.5 0.5 0 0 0 4.1464844 4.8535156 L 7.2929688 8 L 4.1464844 11.146484 A 0.5 0.5 0 0 0 4.1464844 11.853516 A 0.5 0.5 0 0 0 4.8535156 11.853516 L 8 8.7070312 L 11.146484 11.853516 A 0.5 0.5 0 0 0 11.853516 11.853516 A 0.5 0.5 0 0 0 11.853516 11.146484 L 8.7070312 8 L 11.853516 4.8535156 A 0.5 0.5 0 0 0 11.853516 4.1464844 A 0.5 0.5 0 0 0 11.476562 4.0019531 A 0.5 0.5 0 0 0 11.146484 4.1464844 L 8 7.2929688 L 4.8535156 4.1464844 A 0.5 0.5 0 0 0 4.4765625 4.0019531 z "
          transform="translate(-628,1176.8622)" />
     </g>
@@ -132,7 +132,7 @@
         <dc:format>image/svg+xml</dc:format>
         <dc:type
            rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
+        <dc:title />
       </cc:Work>
     </rdf:RDF>
   </metadata>

src/images/detach-button-disabled.svg

@@ -0,0 +1,205 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16px"
+   height="16px"
+   viewBox="0 0 16 16"
+   id="svg2"
+   version="1.1"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="detach-button-disabled.svg">
+  <style
+     id="style2"></style>
+  <defs
+     id="defs4">
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-4" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-3" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-8" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-2" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-9" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-4-8" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-3-7" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-8-0" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-41" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-4-5" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-3-0" />
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="EMFhbasepattern-8-2" />
+  </defs>
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+      <rdf:Description
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+         dc:description="Menu, Bar, Lines, Option, List, Hamburger, Web"
+         dc:publisher="Iconscout"
+         dc:date="2016-12-14"
+         dc:format="image/svg+xml"
+         dc:language="en">
+        <dc:creator>
+          <rdf:Bag>
+            <rdf:li>Jemis Mali</rdf:li>
+          </rdf:Bag>
+        </dc:creator>
+      </rdf:Description>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
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+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <style
+     id="style2-3" />
+  <style
+     id="style2-1" />
+</svg>

src/images/detach-button.svg

@@ -0,0 +1,175 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16px"
+   height="16px"
+   viewBox="0 0 16 16"
+   id="svg2"
+   version="1.1"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="detach-button.svg">
+  <style
+     id="style2"></style>
+  <defs
+     id="defs4">
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
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+    <pattern
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+       width="6"
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+       x="0"
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+       width="6"
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+       width="6"
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+         id="path893"
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+         d="m -622,1179.8622 v 0.5 1.5 1 h -2 v 0.5 1.5 4 h 6 v -3 h 2 v -4 -2 z m 1,2 h 4 v 3 h -1 v -2 h -3 z m -2,3 h 4 v 3 h -4 z" />
+    </g>
+  </g>
+  <metadata
+     id="metadata12">
+    <rdf:RDF>
+      <rdf:Description
+         about="https://iconscout.com/legal#licenses"
+         dc:title="Menu, Bar, Lines, Option, List, Hamburger, Web"
+         dc:description="Menu, Bar, Lines, Option, List, Hamburger, Web"
+         dc:publisher="Iconscout"
+         dc:date="2016-12-14"
+         dc:format="image/svg+xml"
+         dc:language="en">
+        <dc:creator>
+          <rdf:Bag>
+            <rdf:li>Jemis Mali</rdf:li>
+          </rdf:Bag>
+        </dc:creator>
+      </rdf:Description>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <style
+     id="style2-3" />
+</svg>

src/images/tabs-menu-button.svg

@@ -0,0 +1,138 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   sodipodi:docname="tabs-menu-button.svg"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   version="1.1"
+   id="svg2"
+   viewBox="0 0 16 16"
+   height="16px"
+   width="16px">
+  <style
+     id="style2"></style>
+  <defs
+     id="defs4">
+    <pattern
+       id="EMFhbasepattern"
+       patternUnits="userSpaceOnUse"
+       width="6"
+       height="6"
+       x="0"
+       y="0" />
+    <pattern
+       id="EMFhbasepattern-4"
+       patternUnits="userSpaceOnUse"
+       width="6"
+       height="6"
+       x="0"
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+    <pattern
+       id="EMFhbasepattern-3"
+       patternUnits="userSpaceOnUse"
+       width="6"
+       height="6"
+       x="0"
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+       id="EMFhbasepattern-8"
+       patternUnits="userSpaceOnUse"
+       width="6"
+       height="6"
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+     inkscape:guide-bbox="true"
+     showguides="true"
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+     inkscape:snap-global="true"
+     inkscape:snap-bbox-midpoints="true"
+     inkscape:snap-bbox-edge-midpoints="true"
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+     inkscape:bbox-paths="true"
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+     inkscape:window-maximized="1"
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+     inkscape:window-x="-8"
+     inkscape:window-height="1017"
+     inkscape:window-width="1920"
+     units="px"
+     showgrid="true"
+     inkscape:current-layer="g5228"
+     inkscape:document-units="px"
+     inkscape:cy="13.17691"
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+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     borderopacity="1.0"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     id="base">
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+       id="grid3336"
+       type="xygrid" />
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+       id="guide883"
+       orientation="1,0"
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+    <sodipodi:guide
+       id="guide885"
+       orientation="0,-1"
+       position="10,12" />
+    <sodipodi:guide
+       id="guide887"
+       orientation="1,0"
+       position="12,2" />
+    <sodipodi:guide
+       id="guide889"
+       orientation="0,-1"
+       position="14,4" />
+  </sodipodi:namedview>
+  <g
+     transform="translate(0,-1036.3622)"
+     id="layer1"
+     inkscape:groupmode="layer"
+     inkscape:label="Layer 1">
+    <g
+       id="g5228"
+       transform="translate(628,-140.49998)">
+      <path
+         id="path842"
+         d="m -624,1182.8622 4,4 4,-4 z"
+         style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
+    </g>
+  </g>
+  <metadata
+     id="metadata12">
+    <rdf:RDF>
+      <rdf:Description
+         dc:language="en"
+         dc:format="image/svg+xml"
+         dc:date="2016-12-14"
+         dc:publisher="Iconscout"
+         dc:description="Menu, Bar, Lines, Option, List, Hamburger, Web"
+         dc:title="Menu, Bar, Lines, Option, List, Hamburger, Web"
+         about="https://iconscout.com/legal#licenses">
+        <dc:creator>
+          <rdf:Bag>
+            <rdf:li>Jemis Mali</rdf:li>
+          </rdf:Bag>
+        </dc:creator>
+      </rdf:Description>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+</svg>

src/linux/FloatingWidgetTitleBar.cpp

@@ -45,7 +45,7 @@ namespace ads
 {
 
 using tTabLabel = CElidingLabel;
-using tCloseButton = QPushButton;
+using tCloseButton = QToolButton;
 
 /**
  * @brief Private data class of public interface CFloatingWidgetTitleBar
@@ -81,7 +81,7 @@ void FloatingWidgetTitleBarPrivate::createLayout()
 
 	CloseButton = new tCloseButton();
 	CloseButton->setObjectName("floatingTitleCloseButton");
-	CloseButton->setFlat(true);
+    CloseButton->setAutoRaise(true);
 
 	// The standard icons do does not look good on high DPI screens
 	QIcon CloseIcon;
@@ -190,8 +190,7 @@ void CFloatingWidgetTitleBar::setTitle(const QString &Text)
 //============================================================================
 void CFloatingWidgetTitleBar::updateStyle()
 {
-    internal::repolishStyle(this);
-    internal::repolishStyle(d->TitleLabel);
+    internal::repolishStyle(this, internal::RepolishDirectChildren);
 }
 
 } // namespace ads

src/stylesheets/default.css

@@ -1,151 +1,93 @@
-
 /*
  * Default style sheet on Windows Platforms
- * Note: Always use CSS-classes with and without "ads--" namespace to support Qt4 & Qt5
  */
-
-ads--CDockContainerWidget
-{
-    background: palette(dark);
+ads--CDockContainerWidget {
+	background: palette(dark);
 }
 
-
-ads--CDockAreaWidget
-{
-    background: palette(window);
-    border: 1px solid white;
+ads--CDockContainerWidget QSplitter::handle {
+	background: palette(dark);
 }
 
-ads--CDockAreaWidget #tabsMenuButton::menu-indicator
-{
-    image: none;
+ads--CDockAreaWidget {
+	background: palette(window);
+	border: 1px solid white;
 }
 
-
-ads--CDockWidgetTab
-{
-    background: palette(window);
-    border-color: palette(light);
-    border-style: solid;
-    border-width: 0 1px 0 0;
-    padding: 0 0px;
+ads--CDockWidgetTab {
+	background: palette(window);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 0 1px 0 0;
+	padding: 0 0px;
 }
 
-ads--CDockWidgetTab[activeTab="true"]
-{
-    background: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:0.5, stop:0 palette(window), stop:1 palette(light));
-    /*background: palette(highlight);*/
+ads--CDockWidgetTab[activeTab="true"] {
+	background: qlineargradient(spread : pad, x1 : 0, y1 : 0, x2 : 0, y2 : 0.5, stop : 0
+		palette(window), stop:1 palette(light));
+	/*background: palette(highlight);*/
 }
 
-ads--CDockWidgetTab QLabel
-{
-    color: palette(dark);
+ads--CDockWidgetTab QLabel {
+	color: palette(dark);
 }
 
-ads--CDockWidgetTab[activeTab="true"] QLabel
-{
-    color: palette(foreground);
+ads--CDockWidgetTab[activeTab="true"] QLabel {
+	color: palette(foreground);
 }
 
-ads--CDockWidget
-{
-    background: palette(light);
-    border-color: palette(light);
-    border-style: solid;
-    border-width: 1px 0 0 0;
+ads--CDockWidget {
+	background: palette(light);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 1px 0 0 0;
 }
 
-ads--CTitleBarButton
-{
+ads--CTitleBarButton {
 	padding: 0px 0px;
 }
 
-
-QScrollArea#dockWidgetScrollArea
-{
+QScrollArea#dockWidgetScrollArea {
 	padding: 0px;
 	border: none;
 }
 
-
-#tabCloseButton
-{
+#tabCloseButton {
 	margin-top: 2px;
 	background: none;
 	border: none;
 	padding: 0px -2px;
-}
-
-#tabCloseButton:hover
-{
-	/*border: 1px solid rgba(0, 0, 0, 32);*/
-	background: rgba(0, 0, 0, 24);
-}
-
-#tabCloseButton:pressed
-{
-	background: rgba(0, 0, 0, 48);
-}
-
-#tabCloseButton
-{
-	qproperty-icon: url(:/ads/images/close-button.svg);
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
 	qproperty-iconSize: 16px;
 }
 
-
-ads--CDockSplitter::handle
-{
-    background-color: palette(dark);
-    /* uncomment the following line if you would like to change the size of
-       the splitter handles */
-    /* height: 1px; */
+#tabCloseButton:hover {
+	border: 1px solid rgba(0, 0, 0, 32);
+	background: rgba(0, 0, 0, 16);
 }
 
-
-/* Focus related styling */
-ads--CDockWidgetTab[focused="true"]
-{
-    background: palette(highlight);
-    border-color: palette(highlight);
+#tabCloseButton:pressed {
+	background: rgba(0, 0, 0, 32);
 }
 
-ads--CDockWidgetTab[focused="true"] > #tabCloseButton
-{
-	qproperty-icon: url(:/ads/images/close-button-focused.svg)
+#tabsMenuButton::menu-indicator {
+	image: none;
 }
 
-
-
-ads--CDockWidgetTab[focused="true"] > #tabCloseButton:hover
-{
-	background: rgba(255, 255, 255, 48);
+#tabsMenuButton {
+	qproperty-icon: url(:/ads/images/tabs-menu-button.svg);
+	qproperty-iconSize: 16px;
 }
 
-
-ads--CDockWidgetTab[focused="true"] > #tabCloseButton:pressed
-{
-	background: rgba(255, 255, 255, 92);
-}
-
-
-ads--CDockWidgetTab[focused="true"] QLabel
-{
-    color: palette(light);
-}
-
-
-ads--CDockAreaTitleBar
-{
-	background: transparent;
-	border-bottom: 2px solid palette(light);
-	padding-bottom: 0px;
-}
-
-ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar
-{
-	background: transparent;
-	border-bottom: 2px solid palette(highlight);
-	padding-bottom: 0px;
+#dockAreaCloseButton {
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
 }
 
+#detachGroupButton {
+	qproperty-icon: url(:/ads/images/detach-button.svg),
+		url(:/ads/images/detach-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;	
+}

src/stylesheets/default_linux.css

@@ -1,157 +1,109 @@
-
 /*
- * Default style sheet on Windows Platforms
- * Note: Always use CSS-classes with and without "ads--" namespace to support Qt4 & Qt5
+ * Default style sheet on Linux Platforms
  */
-
-ads--CDockContainerWidget
-{
-    background: palette(dark);
+ads--CDockContainerWidget {
+	background: palette(dark);
 }
 
-ads--CDockContainerWidget QSplitter::handle
-{
-    background: palette(dark);
+ads--CDockContainerWidget QSplitter::handle {
+	background: palette(dark);
 }
 
-ads--CDockAreaWidget
-{
-    background: palette(window);
-    border: 1px solid white;
+ads--CDockAreaWidget {
+	background: palette(window);
+	border: 1px solid white;
 }
 
-ads--CDockAreaWidget #tabsMenuButton::menu-indicator
-{
-    image: none;
+ads--CDockAreaWidget #tabsMenuButton::menu-indicator {
+	image: none;
 }
 
-
-ads--CDockWidgetTab
-{
-    background: palette(window);
-    border-color: palette(light);
-    border-style: solid;
-    border-width: 0 1px 0 0;
-    padding: 0 0px;
+ads--CDockWidgetTab {
+	background: palette(window);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 0 1px 0 0;
+	padding: 0 0px;
 }
 
-ads--CDockWidgetTab[activeTab="true"]
-{
-    background: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:0.5, stop:0 palette(window), stop:1 palette(light));
-    /*background: palette(highlight);*/
+ads--CDockWidgetTab[activeTab="true"] {
+	background: qlineargradient(spread : pad, x1 : 0, y1 : 0, x2 : 0, y2 : 0.5, stop : 0
+		palette(window), stop:1 palette(light));
+	/*background: palette(highlight);*/
 }
 
-ads--CDockWidgetTab QLabel
-{
-    color: palette(dark);
+ads--CDockWidgetTab QLabel {
+	color: palette(dark);
 }
 
-ads--CDockWidgetTab[activeTab="true"] QLabel
-{
-    color: palette(foreground);
+ads--CDockWidgetTab[activeTab="true"] QLabel {
+	color: palette(foreground);
 }
 
-ads--CDockWidget
-{
-    background: palette(light);
-    border-color: palette(light);
-    border-style: solid;
-    border-width: 1px 0 0 0;
+ads--CDockWidget {
+	background: palette(light);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 1px 0 0 0;
 }
 
-
-ads--CTitleBarButton
-{
+ads--CTitleBarButton {
 	padding: 0px 0px;
 }
 
-
-
-QScrollArea#dockWidgetScrollArea
-{
+QScrollArea#dockWidgetScrollArea {
 	padding: 0px;
 	border: none;
 }
 
-
-#tabCloseButton
-{
-        margin-top: 2px;
-        background: none;
-        border: none;
-        padding: 0px -2px;
+#tabCloseButton {
+	margin-top: 2px;
+	background: none;
+	border: none;
+	padding: 0px -2px;
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
 }
 
-#tabCloseButton:hover
-{
-        /*border: 1px solid rgba(0, 0, 0, 32);*/
-        background: rgba(0, 0, 0, 24);
+#tabCloseButton:hover {
+	border: 1px solid rgba(0, 0, 0, 32);
+	background: rgba(0, 0, 0, 16);
 }
 
-#tabCloseButton:pressed
-{
-        background: rgba(0, 0, 0, 48);
+#tabCloseButton:pressed {
+	background: rgba(0, 0, 0, 32);
 }
 
-#tabCloseButton
-{
-        qproperty-icon: url(:/ads/images/close-button.svg);
+#tabsMenuButton {
+        qproperty-icon: url(:/ads/images/tabs-menu-button.svg);
         qproperty-iconSize: 16px;
 }
 
-/* Focus related styling */
-ads--CDockWidgetTab[focused="true"]
-{
-    background: palette(highlight);
-    border-color: palette(highlight);
+#dockAreaCloseButton {
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
 }
 
-ads--CDockWidgetTab[focused="true"] > #tabCloseButton
-{
-        qproperty-icon: url(:/ads/images/close-button-focused.svg)
+#detachGroupButton {
+	qproperty-icon: url(:/ads/images/detach-button.svg),
+		url(:/ads/images/detach-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;	
 }
 
-
-
-ads--CDockWidgetTab[focused="true"] > #tabCloseButton:hover
-{
-        background: rgba(255, 255, 255, 48);
+#floatingTitleCloseButton {
+   qproperty-icon: url(:/ads/images/close-button.svg);
+   qproperty-iconSize: 16px;
+   border: none;
+   margin: 3px;
 }
 
-
-ads--CDockWidgetTab[focused="true"] > #tabCloseButton:pressed
-{
-        background: rgba(255, 255, 255, 92);
+#floatingTitleCloseButton:hover {
+    background: rgba(0, 0, 0, 24);
+    border: none;
 }
 
-ads--CDockWidgetTab[focused="true"] QLabel
-{
-    color: palette(light);
-}
-
-
-ads--CDockAreaTitleBar
-{
-        background: transparent;
-        border-bottom: 2px solid palette(light);
-        padding-bottom: 0px;
-}
-
-ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar
-{
-        background: transparent;
-        border-bottom: 2px solid palette(highlight);
-        padding-bottom: 0px;
-}
-
-
-ads--CFloatingDockContainer[isActiveWindow="true"] ads--CFloatingWidgetTitleBar
-{
-    background: palette(highlight);
-}
-
-
-ads--CFloatingDockContainer[isActiveWindow="true"] ads--CFloatingWidgetTitleBar > QLabel
-{
-    color: palette(light);
+#floatingTitleCloseButton:pressed {
+    background: rgba(0, 0, 0, 48);
 }

src/stylesheets/focus_highlighting.css

@@ -0,0 +1,125 @@
+/*
+ * Default style sheet on Windows Platforms with focus highlighting flag enabled
+ */
+ads--CDockContainerWidget {
+	background: palette(dark);
+}
+
+ads--CDockAreaWidget {
+	background: palette(window);
+	border: 1px solid white;
+}
+
+ads--CDockWidgetTab {
+	background: palette(window);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 0 1px 0 0;
+	padding: 0 0px;
+}
+
+ads--CDockWidgetTab[activeTab="true"] {
+	background: qlineargradient(spread : pad, x1 : 0, y1 : 0, x2 : 0, y2 : 0.5, stop : 0
+		palette(window), stop:1 palette(light));
+	/*background: palette(highlight);*/
+}
+
+ads--CDockWidgetTab QLabel {
+	color: palette(dark);
+}
+
+ads--CDockWidgetTab[activeTab="true"] QLabel {
+	color: palette(foreground);
+}
+
+ads--CDockWidget {
+	background: palette(light);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 1px 0 0 0;
+}
+
+ads--CTitleBarButton {
+	padding: 0px 0px;
+}
+
+QScrollArea#dockWidgetScrollArea {
+	padding: 0px;
+	border: none;
+}
+
+#tabsMenuButton::menu-indicator {
+	image: none;
+}
+
+#tabCloseButton {
+	margin-top: 2px;
+	background: none;
+	border: none;
+	padding: 0px -2px;
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
+}
+
+#tabCloseButton:hover {
+	/*border: 1px solid rgba(0, 0, 0, 32);*/
+	background: rgba(0, 0, 0, 24);
+}
+
+#tabCloseButton:pressed {
+	background: rgba(0, 0, 0, 48);
+}
+
+#dockAreaCloseButton {
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
+}
+
+#detachGroupButton {
+	qproperty-icon: url(:/ads/images/detach-button.svg),
+		url(:/ads/images/detach-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;	
+}
+
+ads--CDockSplitter::handle {
+	background-color: palette(dark);
+	/* uncomment the following line if you would like to change the size of
+       the splitter handles */
+	/* height: 1px; */
+}
+
+/* Focus related styling */
+ads--CDockWidgetTab[focused="true"] {
+	background: palette(highlight);
+	border-color: palette(highlight);
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton {
+	qproperty-icon: url(:/ads/images/close-button-focused.svg)
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton:hover {
+	background: rgba(255, 255, 255, 48);
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton:pressed {
+	background: rgba(255, 255, 255, 92);
+}
+
+ads--CDockWidgetTab[focused="true"] QLabel {
+	color: palette(light);
+}
+
+ads--CDockAreaTitleBar {
+	background: transparent;
+	border-bottom: 2px solid palette(light);
+	padding-bottom: 0px;
+}
+
+ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar {
+	background: transparent;
+	border-bottom: 2px solid palette(highlight);
+	padding-bottom: 0px;
+}

src/stylesheets/focus_highlighting_linux.css

@@ -0,0 +1,170 @@
+/*
+ * Default style sheet on Linux Platforms with focus highlighting flag enabled
+ */
+ads--CDockContainerWidget {
+	background: palette(dark);
+}
+
+ads--CDockContainerWidget QSplitter::handle {
+	background: palette(dark);
+}
+
+ads--CDockAreaWidget {
+	background: palette(window);
+	border: 1px solid white;
+}
+
+ads--CDockAreaWidget #tabsMenuButton::menu-indicator {
+	image: none;
+}
+
+ads--CDockWidgetTab {
+	background: palette(window);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 0 1px 0 0;
+	padding: 0 0px;
+}
+
+ads--CDockWidgetTab[activeTab="true"] {
+	background: qlineargradient(spread : pad, x1 : 0, y1 : 0, x2 : 0, y2 : 0.5, stop : 0
+		palette(window), stop:1 palette(light));
+	/*background: palette(highlight);*/
+}
+
+ads--CDockWidgetTab QLabel {
+	color: palette(dark);
+}
+
+ads--CDockWidgetTab[activeTab="true"] QLabel {
+	color: palette(foreground);
+}
+
+ads--CDockWidget {
+	background: palette(light);
+	border-color: palette(light);
+	border-style: solid;
+	border-width: 1px 0 0 0;
+}
+
+ads--CTitleBarButton {
+	padding: 0px 0px;
+}
+
+QScrollArea#dockWidgetScrollArea {
+	padding: 0px;
+	border: none;
+}
+
+#dockAreaCloseButton {
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
+}
+
+#detachGroupButton {
+	qproperty-icon: url(:/ads/images/detach-button.svg),
+		url(:/ads/images/detach-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;	
+}
+
+#tabCloseButton {
+	margin-top: 2px;
+	background: none;
+	border: none;
+	padding: 0px -2px;
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
+}
+
+#tabCloseButton:hover {
+	/*border: 1px solid rgba(0, 0, 0, 32);*/
+	background: rgba(0, 0, 0, 24);
+}
+
+#tabCloseButton:pressed {
+	background: rgba(0, 0, 0, 48);
+}
+
+
+#tabsMenuButton {
+        qproperty-icon: url(:/ads/images/tabs-menu-button.svg);
+        qproperty-iconSize: 16px;
+}
+
+
+/* Focus related styling */
+ads--CDockWidgetTab[focused="true"] {
+	background: palette(highlight);
+	border-color: palette(highlight);
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton {
+	qproperty-icon: url(:/ads/images/close-button-focused.svg)
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton:hover {
+	background: rgba(255, 255, 255, 48);
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton:pressed {
+	background: rgba(255, 255, 255, 92);
+}
+
+ads--CDockWidgetTab[focused="true"] QLabel {
+	color: palette(light);
+}
+
+ads--CDockAreaTitleBar {
+	background: transparent;
+	border-bottom: 2px solid palette(light);
+	padding-bottom: 0px;
+}
+
+ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar {
+	background: transparent;
+	border-bottom: 2px solid palette(highlight);
+	padding-bottom: 0px;
+}
+
+
+
+ads--CFloatingDockContainer[isActiveWindow="true"] ads--CFloatingWidgetTitleBar {
+	background: palette(highlight);
+}
+
+ads--CFloatingDockContainer[isActiveWindow="true"] #floatingTitleLabel {
+	color: palette(light);
+}
+
+#floatingTitleCloseButton {
+   qproperty-icon: url(:/ads/images/close-button.svg);
+   qproperty-iconSize: 16px;
+   border: none;
+   margin: 3px;
+}
+
+#floatingTitleCloseButton:hover {
+    background: rgba(0, 0, 0, 24);
+    border: none;
+}
+
+#floatingTitleCloseButton:pressed {
+    background: rgba(0, 0, 0, 48);
+}
+
+
+ads--CFloatingDockContainer[isActiveWindow="true"] #floatingTitleCloseButton {
+    qproperty-icon: url(:/ads/images/close-button-focused.svg);
+    qproperty-iconSize: 16px;
+}
+
+ads--CFloatingDockContainer[isActiveWindow="true"] #floatingTitleCloseButton:hover  {
+    background: rgba(255, 255, 255, 48);
+}
+
+
+ads--CFloatingDockContainer[isActiveWindow="true"] #floatingTitleCloseButton:pressed {
+    background: rgba(255, 255, 255, 92);
+}