Ensure that TabWidget was not deleted by using it as context object (#612)

Co-authored-by: Marcus Venturi <marcus.venturi@visu-it.de>

.clang-format

@@ -0,0 +1,146 @@
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+AlignConsecutiveAssignments: None
+AlignConsecutiveDeclarations: None
+AlignEscapedNewlines: Right
+AlignOperands: Align
+AlignTrailingComments: true
+
+AllowAllArgumentsOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: InlineOnly
+AllowShortIfStatementsOnASingleLine: Never
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+AlwaysBreakTemplateDeclarations: Yes
+
+BinPackArguments: true
+BinPackParameters: true
+
+BraceWrapping:
+  AfterCaseLabel: true
+  AfterClass: true
+  AfterControlStatement: Always
+  AfterEnum: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterStruct: true
+  AfterUnion: true
+  AfterExternBlock: true
+  BeforeCatch: true
+  BeforeElse: true
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+  IndentBraces: false
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+  SplitEmptyNamespace: false
+
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+
+FixNamespaceComments: true
+
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: '^<windows(\.h)?>'  # windows headers
+    Priority: -1
+  - Regex: '^<labbcan[[:alnum:]._/]+'  # labbcan headers
+    Priority: 1
+  - Regex: '^<diag[[:alnum:]._/]+'  # usl headers
+    Priority: 1
+  - Regex: '^<usl[[:alnum:]._/]+'  # usl headers
+    Priority: 1
+  - Regex: '^<qt5compat[[:alnum:]._/]+'  # qtlabb headers
+    Priority: 2
+  - Regex: '^<qtcoreaddons[[:alnum:]._/]+'  # qtlabb headers
+    Priority: 2
+  - Regex: '^<qtlabb[[:alnum:]._/]+'  # qtlabb headers
+    Priority: 2
+  - Regex: '<Q[[:alnum:].]+>'  # Qt headers
+    Priority: 3
+  - Regex: '^<sila_cpp[[:alnum:]._/]+'  # sila_cpp headers
+    Priority: 4
+  - Regex: '<[[:alnum:]._/]+\.h>'  # other headers
+    Priority: 5
+  - Regex: '<[[:alnum:]._/]+>'  # system headers
+    Priority: 6
+  - Regex: '.*'
+    Priority: 7
+
+IncludeIsMainRegex: '(_p)?$'
+
+IndentCaseBlocks: false
+IndentCaseLabels: false
+IndentPPDirectives: AfterHash
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+
+KeepEmptyLinesAtTheStartOfBlocks: false
+MaxEmptyLinesToKeep: 1
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+
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+SortUsingDeclarations: true
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+
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+
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+
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+UseTab: Never

.github/workflows/linux-builds.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-latest, ubuntu-20.04, ubuntu-18.04]
+        os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
     
@@ -16,8 +16,44 @@ jobs:
       run: |
         sudo apt-get update --fix-missing
         sudo apt-get install qt5-default
-        sudo apt-get install qtbase5-private-dev
+        sudo apt-get install qtbase5-private-dev qtdeclarative5-dev
     - name: qmake
       run: qmake
     - name: make
       run: make -j4
+      
+  build_ubuntu_2204:
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Cache Qt
+      id: cache-qt-6-4
+      uses: actions/cache@v1  # not v2!
+      with:
+        path: ../Qt/6.4.2
+        key: ${{ runner.os }}-QtCache-Qt6-4
+
+    - name: Install Qt
+      uses: jurplel/install-qt-action@v2
+      with:
+        version: '6.4.2'
+        host: 'linux'
+        target: 'desktop'
+        install-deps: true
+        cached: ${{ steps.cache-qt-6-4.outputs.cache-hit }}
+        setup-python: true
+        tools: ''
+        tools-only: false
+
+    - name: Install needed xkbcommon symlink
+      run: sudo apt-get install libxkbcommon-dev -y    
+
+    - name: Ubuntu and Qt version
+      run: |
+        cat /etc/issue
+        echo number of processors: $(nproc)
+        qmake -v
+    - name: qmake
+      run: qmake
+    - name: make
+      run: make -j$(nproc)

.gitignore

@@ -1,4 +1,4 @@
-*.pro.user
+*.pro.user*
 /build
 *.o
 *.dylib
@@ -7,6 +7,9 @@ qrc_*
 moc_*
 ui_*
 Makefile
+*.dll
+*.a
+build-*
 
 # IDEs
 .idea

CMakeLists.txt

@@ -1,5 +1,9 @@
 cmake_minimum_required(VERSION 3.5)
 
+if (POLICY CMP0091)
+  cmake_policy(SET CMP0091 NEW)
+endif (POLICY CMP0091)
+
 # By default, the version information is extracted from the git index. However,
 # we can override this behavior by explicitly setting ADS_VERSION and
 # skipping the git checks. This is useful for cases where this project is being

demo/CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.5)
 project(ads_demo VERSION ${VERSION_SHORT}) 
 
 find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
-find_package(Qt${QT_VERSION_MAJOR} 5.5 COMPONENTS Core Gui Widgets REQUIRED)
+find_package(Qt${QT_VERSION_MAJOR} 5.5 COMPONENTS Core Gui Widgets Quick QuickWidgets REQUIRED)
 if(WIN32 AND QT_VERSION_MAJOR LESS 6)
     find_package(Qt${QT_VERSION_MAJOR} COMPONENTS AxContainer REQUIRED)
 endif()
@@ -21,11 +21,13 @@ add_executable(AdvancedDockingSystemDemo WIN32 ${ads_demo_SRCS})
 target_include_directories(AdvancedDockingSystemDemo PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../src")
 target_link_libraries(AdvancedDockingSystemDemo PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                        Qt${QT_VERSION_MAJOR}::Gui 
-                                                       Qt${QT_VERSION_MAJOR}::Widgets)
+                                                       Qt${QT_VERSION_MAJOR}::Widgets
+                                                       Qt${QT_VERSION_MAJOR}::Quick
+                                                       Qt${QT_VERSION_MAJOR}::QuickWidgets)
 if(WIN32 AND QT_VERSION_MAJOR LESS 6)
     target_link_libraries(AdvancedDockingSystemDemo PUBLIC Qt${QT_VERSION_MAJOR}::AxContainer)
 endif()
-target_link_libraries(AdvancedDockingSystemDemo PRIVATE qtadvanceddocking)
+target_link_libraries(AdvancedDockingSystemDemo PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 set_target_properties(AdvancedDockingSystemDemo PROPERTIES 
     AUTOMOC ON
     AUTORCC ON

demo/MainWindow.cpp

@@ -62,6 +62,7 @@
 #include <QPointer>
 #include <QMap>
 #include <QElapsedTimer>
+#include <QQuickWidget>
 
 
 #if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
@@ -270,6 +271,10 @@ struct MainWindowPrivate
 		auto ToolBar = DockWidget->createDefaultToolBar();
 		ToolBar->addAction(ui.actionSaveState);
 		ToolBar->addAction(ui.actionRestoreState);
+		// For testing all calendar dock widgets have a the tool button style
+		// Qt::ToolButtonTextUnderIcon
+		DockWidget->setToolBarStyleSource(ads::CDockWidget::ToolBarStyleFromDockWidget);
+		DockWidget->setToolBarStyle(Qt::ToolButtonTextUnderIcon, ads::CDockWidget::StateFloating);
 		return DockWidget;
 	}
 
@@ -407,6 +412,17 @@ struct MainWindowPrivate
 		return DockWidget;
 	}
 
+	/**
+	 * Create QQuickWidget for test for OpenGL and QQuick
+	 */
+	ads::CDockWidget *createQQuickWidget()
+	{
+		QQuickWidget *widget = new QQuickWidget();
+		ads::CDockWidget *dockWidget = new ads::CDockWidget("Quick");
+		dockWidget->setWidget(widget);
+		return dockWidget;
+	}
+
 
 #ifdef Q_OS_WIN
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
@@ -424,7 +440,6 @@ struct MainWindowPrivate
 	}
 #endif
 #endif
-
 };
 
 //============================================================================
@@ -437,8 +452,8 @@ void MainWindowPrivate::createContent()
 
 	// For this Special Dock Area we want to avoid dropping on the center of it (i.e. we don't want this widget to be ever tabbified):
 	{
-		SpecialDockArea->setAllowedAreas(ads::OuterDockAreas);
-		//SpecialDockArea->setAllowedAreas({ads::LeftDockWidgetArea, ads::RightDockWidgetArea}); // just for testing
+		//SpecialDockArea->setAllowedAreas(ads::OuterDockAreas);
+		SpecialDockArea->setAllowedAreas({ads::LeftDockWidgetArea, ads::RightDockWidgetArea, ads::TopDockWidgetArea}); // just for testing
 	}
 
 	DockWidget = createLongTextLabelDockWidget();
@@ -506,7 +521,9 @@ void MainWindowPrivate::createContent()
 
 	// Test dock area docking
 	auto RighDockArea = DockManager->addDockWidget(ads::RightDockWidgetArea, createLongTextLabelDockWidget(), TopDockArea);
-	DockManager->addDockWidget(ads::TopDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
+	DockWidget = createLongTextLabelDockWidget();
+	DockWidget->setFeature(ads::CDockWidget::DockWidgetPinnable, false);
+	DockManager->addDockWidget(ads::TopDockWidgetArea, DockWidget, RighDockArea);
 	auto BottomDockArea = DockManager->addDockWidget(ads::BottomDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
 	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
 	auto LabelDockWidget = createLongTextLabelDockWidget();
@@ -514,6 +531,7 @@ void MainWindowPrivate::createContent()
 
 	// Tests CustomCloseHandling without DeleteOnClose
 	LabelDockWidget->setFeature(ads::CDockWidget::CustomCloseHandling, true);
+	LabelDockWidget->setWindowTitle(LabelDockWidget->windowTitle() + " [Custom Close]");
 	QObject::connect(LabelDockWidget, &ads::CDockWidget::closeRequested, [LabelDockWidget, this]()
 	{
 		int Result = QMessageBox::question(_this, "Custom Close Request",
@@ -544,13 +562,7 @@ void MainWindowPrivate::createContent()
 
 #ifdef Q_OS_WIN
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
-    // If opaque undocking is active, then undocking of widgets while
-    // active x widget is visible causes jerking while dragging a floating
-    // widget
-    if (!ads::CDockManager::testConfigFlag(ads::CDockManager::OpaqueUndocking))
-    {
-    	DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(), RighDockArea);
-    }
+    DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(), RighDockArea);
 #endif
 #endif
 
@@ -563,6 +575,11 @@ void MainWindowPrivate::createContent()
 	// Create image viewer
 	DockWidget = createImageViewer();
 	DockManager->addDockWidget(ads::LeftDockWidgetArea, DockWidget);
+
+    // Create quick widget
+	DockWidget = createQQuickWidget();
+	DockWidget->setFeature(ads::CDockWidget::DockWidgetClosable, true);
+	DockManager->addDockWidget(ads::LeftDockWidgetArea, DockWidget);
 }
 
 
@@ -575,19 +592,29 @@ void MainWindowPrivate::createActions()
 	ui.toolBar->addAction(ui.actionRestoreState);
 	ui.actionRestoreState->setIcon(svgIcon(":/adsdemo/images/restore.svg"));
 
-	SavePerspectiveAction = new QAction("Create Perspective", _this);
-	SavePerspectiveAction->setIcon(svgIcon(":/adsdemo/images/picture_in_picture.svg"));
-	_this->connect(SavePerspectiveAction, SIGNAL(triggered()), SLOT(savePerspective()));
+	ui.toolBar->addSeparator();
+
+	QAction* a = ui.toolBar->addAction("Lock Workspace");
+	a->setIcon(svgIcon(":/adsdemo/images/lock_outline.svg"));
+	a->setCheckable(true);
+	a->setChecked(false);
+	QObject::connect(a, &QAction::triggered, _this, &CMainWindow::lockWorkspace);
+
 	PerspectiveListAction = new QWidgetAction(_this);
 	PerspectiveComboBox = new QComboBox(_this);
 	PerspectiveComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
-	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	PerspectiveListAction->setDefaultWidget(PerspectiveComboBox);
-	ui.toolBar->addSeparator();
 	ui.toolBar->addAction(PerspectiveListAction);
+
+	a = SavePerspectiveAction = ui.toolBar->addAction("Create Perspective");
+	a->setIcon(svgIcon(":/adsdemo/images/picture_in_picture.svg"));
+	QObject::connect(a, &QAction::triggered, _this, &CMainWindow::savePerspective);
 	ui.toolBar->addAction(SavePerspectiveAction);
 
-	QAction* a = ui.toolBar->addAction("Create Floating Editor");
+	ui.toolBar->addSeparator();
+
+	a = ui.toolBar->addAction("Create Floating Editor");
 	a->setProperty("Floating", true);
 	a->setToolTip("Creates floating dynamic dockable editor windows that are deleted on close");
 	a->setIcon(svgIcon(":/adsdemo/images/note_add.svg"));
@@ -609,6 +636,7 @@ void MainWindowPrivate::createActions()
 	_this->connect(a, SIGNAL(triggered()), SLOT(createEditor()));
 	ui.menuTests->addAction(a);
 
+	ui.toolBar->addSeparator();
 	a = ui.toolBar->addAction("Create Floating Table");
 	a->setToolTip("Creates floating dynamic dockable table with millions of entries");
 	a->setIcon(svgIcon(":/adsdemo/images/grid_on.svg"));
@@ -740,7 +768,7 @@ CMainWindow::CMainWindow(QWidget *parent) :
     CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
 
 	// uncomment if you would like to enable dock widget auto hiding
-    CDockManager::setAutoHideConfigFlags(CDockManager::DefaultAutoHideConfig);
+    CDockManager::setAutoHideConfigFlags({CDockManager::DefaultAutoHideConfig});
 
 	// uncomment if you would like to enable an equal distribution of the
 	// available size of a splitter to all contained dock widgets
@@ -751,6 +779,7 @@ CMainWindow::CMainWindow(QWidget *parent) :
 
 	// Now create the dock manager and its content
 	d->DockManager = new CDockManager(this);
+	d->DockManager->setDockWidgetToolBarStyle(Qt::ToolButtonIconOnly, ads::CDockWidget::StateFloating);
 
  #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
 	connect(d->PerspectiveComboBox, SIGNAL(activated(QString)),
@@ -1012,3 +1041,17 @@ void CMainWindow::createImageViewer()
 	}
 }
 
+
+//============================================================================
+void CMainWindow::lockWorkspace(bool Value)
+{
+	if (Value)
+	{
+		d->DockManager->lockDockWidgetFeaturesGlobally();
+	}
+	else
+	{
+		d->DockManager->lockDockWidgetFeaturesGlobally(ads::CDockWidget::NoDockWidgetFeatures);
+	}
+}
+

demo/MainWindow.h

@@ -68,6 +68,7 @@ private slots:
 	void toggleDockWidgetWindowTitle();
 	void applyVsStyle();
 	void createImageViewer();
+	void lockWorkspace(bool Value);
 };
 
 #endif // MAINWINDOW_H

demo/demo.pro

@@ -2,7 +2,7 @@ ADS_OUT_ROOT = $${OUT_PWD}/..
 
 TARGET = AdvancedDockingSystemDemo
 DESTDIR = $${ADS_OUT_ROOT}/lib
-QT += core gui widgets
+QT += core gui widgets quick quickwidgets
 
 include(../ads.pri)
 

demo/demo.qrc

@@ -36,5 +36,8 @@
         <file>images/panorama.svg</file>
         <file>images/ads_icon2.svg</file>
         <file>images/font_download.svg</file>
+        <file>images/lock_outline.svg</file>
+        <file>images/lock.svg</file>
+        <file>images/lock_open.svg</file>
     </qresource>
 </RCC>

demo/images/lock.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>lock icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M853.33,426.67v426.66c0,46.93 -38.4,85.34 -85.33,85.34h-512c-46.93,0 -85.33,-38.41 -85.33,-85.34v-426.66c0,-46.93 38.4,-85.34 85.33,-85.34h42.67v-85.33c0,-117.76 95.57,-213.33 213.33,-213.33c117.76,0 213.33,95.57 213.33,213.33v85.33h42.67c46.93,0 85.33,38.41 85.33,85.34zM644.27,256c0,-72.96 -59.31,-132.27 -132.27,-132.27c-72.96,0 -132.27,59.31 -132.27,132.27v85.33h264.54zM597.33,640c0,-46.93 -38.4,-85.33 -85.33,-85.33c-46.93,0 -85.33,38.4 -85.33,85.33c0,46.93 38.4,85.33 85.33,85.33c46.93,0 85.33,-38.4 85.33,-85.33z"/>
+	</g>
+</svg>

demo/images/lock_open.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>lock_open icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M853.33,426.67v426.66c0,46.93 -38.4,85.34 -85.33,85.34h-512c-46.93,0 -85.33,-38.41 -85.33,-85.34v-426.66c0,-46.93 38.4,-85.34 85.33,-85.34h388.27v-85.33c0,-72.96 -59.31,-132.27 -132.27,-132.27c-72.96,0 -132.27,59.31 -132.27,132.27h-81.06c0,-117.76 95.57,-213.33 213.33,-213.33c117.76,0 213.33,95.57 213.33,213.33v85.33h42.67c46.93,0 85.33,38.41 85.33,85.34zM768,426.67h-512v426.66h512zM426.67,640c0,-46.93 38.4,-85.33 85.33,-85.33c46.93,0 85.33,38.4 85.33,85.33c0,46.93 -38.4,85.33 -85.33,85.33c-46.93,0 -85.33,-38.4 -85.33,-85.33z"/>
+	</g>
+</svg>

demo/images/lock_outline.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>lock_outline icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M853.33,426.67v426.66c0,46.93 -38.4,85.34 -85.33,85.34h-512c-46.93,0 -85.33,-38.41 -85.33,-85.34v-426.66c0,-46.93 38.4,-85.34 85.33,-85.34h42.67v-85.33c0,-117.76 95.57,-213.33 213.33,-213.33c117.76,0 213.33,95.57 213.33,213.33v85.33h42.67c46.93,0 85.33,38.41 85.33,85.34zM768,426.67h-512v426.66h512zM379.73,341.33h264.54v-85.33c0,-72.96 -59.31,-132.27 -132.27,-132.27c-72.96,0 -132.27,59.31 -132.27,132.27zM426.67,640c0,-46.93 38.4,-85.33 85.33,-85.33c46.93,0 85.33,38.4 85.33,85.33c0,46.93 -38.4,85.33 -85.33,85.33c-46.93,0 -85.33,-38.4 -85.33,-85.33z"/>
+	</g>
+</svg>

demo/status_dialog.py

@@ -2,7 +2,7 @@ import os
 import sys
 
 from PyQt5 import uic
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 UI_FILE = os.path.join(os.path.dirname(__file__), 'StatusDialog.ui')
 StatusDialogUI, StatusDialogBase = uic.loadUiType(UI_FILE)

doc/ads_qt_marketplace_description.md

@@ -12,10 +12,10 @@ styles as much as possible.
 
 ## Features
 
-### Docking everywhere - no central widget
+### Docking everywhere - with or without a central widget
 
-There is no central widget like in the Qt docking system. You can dock on every
-border of the main window or you can dock into each dock area - so you are
+The Advanced Docking System works with or without a central widget.
+You can dock on every border of the main window or you can dock into each dock area - so you are
 free to dock almost everywhere.
 
 ![Dropping widgets](https://raw.githubusercontent.com/githubuser0xFFFF/Qt-Advanced-Docking-System/master/doc/preview-dragndrop.png)
@@ -65,7 +65,7 @@ If this flag is cleared, the widget resizing is deferred until the mouse button
 
 ### Opaque and non-opaque undocking
 
-By default, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediatelly. You can compare this with opaque splitter resizing. If the flag `OpaqueUndocking` is cleared, then non-opaque undocking is active. In this mode, undocking is more like a standard drag and drop operation. That means, the dragged dock widget or dock area is not undocked immediatelly. Instead, a drag preview widget is created and dragged around to indicate the future position of the dock widget or dock area. The actual dock operation is only executed when the mouse button is released. That makes it possible, to cancel an active drag operation with the escape key.
+By default, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediately. You can compare this with opaque splitter resizing. If the flag `OpaqueUndocking` is cleared, then non-opaque undocking is active. In this mode, undocking is more like a standard drag and drop operation. That means, the dragged dock widget or dock area is not undocked immediately. Instead, a drag preview widget is created and dragged around to indicate the future position of the dock widget or dock area. The actual dock operation is only executed when the mouse button is released. That makes it possible, to cancel an active drag operation with the escape key.
 
 The drag preview widget can be configured by a number of global dock manager flags:
 

doc/user-guide.md

@@ -11,7 +11,6 @@
   - [`TabCloseButtonIsToolButton`](#tabclosebuttonistoolbutton)
   - [`AllTabsHaveCloseButton`](#alltabshaveclosebutton)
   - [`RetainTabSizeWhenCloseButtonHidden`](#retaintabsizewhenclosebuttonhidden)
-  - [`OpaqueUndocking`](#opaqueundocking)
   - [`DragPreviewIsDynamic`](#dragpreviewisdynamic)
   - [`DragPreviewShowsContentPixmap`](#dragpreviewshowscontentpixmap)
   - [`DragPreviewHasWindowFrame`](#dragpreviewhaswindowframe)
@@ -28,10 +27,17 @@
   - [`FloatingContainerForceNativeTitleBar` (Linux only)](#floatingcontainerforcenativetitlebar-linux-only)
   - [`FloatingContainerForceQWidgetTitleBar` (Linux only)](#floatingcontainerforceqwidgettitlebar-linux-only)
   - [`MiddleMouseButtonClosesTab`](#middlemousebuttonclosestab)
+  - [`DisableTabTextEliding`](#disabletabtexteliding)
+  - [`ShowTabTextOnlyForActiveTab`](#showtabtextonlyforactivetab)
 - [Auto-Hide Configuration Flags](#auto-hide-configuration-flags)
   - [Auto Hide Dock Widgets](#auto-hide-dock-widgets)
   - [Pinning Auto-Hide Widgets to a certain border](#pinning-auto-hide-widgets-to-a-certain-border)
   - [Show / Hide Auto-Hide Widgets via Mouse Over](#show--hide-auto-hide-widgets-via-mouse-over)
+  - [Drag \& Drop to Auto-Hide](#drag--drop-to-auto-hide)
+  - [Auto-Hide Tab Insertion Order](#auto-hide-tab-insertion-order)
+  - [Auto-Hide Tab Sorting](#auto-hide-tab-sorting)
+  - [Auto-Hide Drag to Float / Dock](#auto-hide-drag-to-float--dock)
+  - [Auto-Hide Context Menu](#auto-hide-context-menu)
   - [Adding Auto Hide Widgets](#adding-auto-hide-widgets)
   - [Setting Auto-Hide Flags](#setting-auto-hide-flags)
   - [`AutoHideFeatureEnabled`](#autohidefeatureenabled)
@@ -40,6 +46,9 @@
   - [`AutoHideButtonCheckable`](#autohidebuttoncheckable)
   - [`AutoHideSideBarsIconOnly`](#autohidesidebarsicononly)
   - [`AutoHideShowOnMouseOver`](#autohideshowonmouseover)
+  - [`AutoHideCloseButtonCollapsesDock`](#autohideclosebuttoncollapsesdock)
+  - [`AutoHideHasCloseButton`](#autohidehasclosebutton)
+  - [`AutoHideHasMinimizeButton`](#autohidehasminimizebutton)
 - [DockWidget Feature Flags](#dockwidget-feature-flags)
   - [`DockWidgetClosable`](#dockwidgetclosable)
   - [`DockWidgetMovable`](#dockwidgetmovable)
@@ -170,37 +179,6 @@ constant, that means, if enabled, the tabs need more space.
 
 ![AllTabsHaveCloseButton false](cfg_flag_RetainTabSizeWhenCloseButtonHidden_true.png)
 
-### `OpaqueUndocking`
-
-If this flag is set, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediately. You can compare this with opaque splitter resizing.
-
-![OpaqueUndocking true](opaque_undocking.gif)
-
-If you would like to test opaque undocking, you should set the predefined config
-flags `CDockManager::DefaultOpaqueConfig`.
-
-```c++
-CDockManager::setConfigFlags(CDockManager::DefaultOpaqueConfig);
-```
-
-If this flag is cleared (default), then non-opaque undocking is active. In this mode, undocking is more like a standard drag and drop operation. That means, the dragged dock widget or dock area is not undocked immediatelly. Instead, a drag preview widget is created and dragged around to indicate the future position of the dock widget or dock area. The actual dock operation is only executed when the mouse button is released. That makes it possible, to cancel an active drag operation with the escape key.
-
-![OpaqueUndocking true](non_opaque_undocking.gif)
-
-The drag preview widget can be configured by a number of global dock manager flags:
-
-- `DragPreviewIsDynamic`
-- `DragPreviewShowsContentPixmap`
-- `DragPreviewHasWindowFrame`
-
-Non-opaque undocking is enabled by default. If you would like to enable it
-explicitely, you can do this by setting the predefined configuration flags
-`CDockManager::DefaultNonOpaqueConfig`.
-
-```c++
-CDockManager::setConfigFlags(CDockManager::DefaultNonOpaqueConfig);
-```
-
 ### `DragPreviewIsDynamic`
 
 If non-opaque undocking is enabled, this flag defines the behavior of the drag 
@@ -325,8 +303,9 @@ or to close it via the close button.
 
 ![HideSingleCentralWidgetTitleBar true](cfg_flag_HideSingleCentralWidgetTitleBar_true.png)
 
-The Advanced Docking System is meant for applications without a static central
-widget and normally does not know anything about a central static widget.
+Unless a central widget explicitly has been set with setCentralWidget, the
+Advanced Docking System is without a static central widget and it wouldn't know
+about a central static widget.
 Therefore this flag is disabled by default and a central single dock widget
 still has a titlebar to drag it out of the main window.
 
@@ -498,6 +477,24 @@ possible in various web browsers.
 
 ![MiddleMouseButtonClosesTab true](cfg_flag_MiddleMouseButtonClosesTab.gif)
 
+### `DisableTabTextEliding`
+
+Set this flag to disable eliding of tab texts in dock area tabs:
+
+![DisableTabTextEliding true](cfg_flag_DisableTabTextEliding_true.png)
+
+The flag is disabled by default and the text in all tabs is elided to show as
+many tabs as possible even if there is not much space:
+
+![DisableTabTextEliding false](cfg_flag_DisableTabTextEliding_false.png)
+
+### `ShowTabTextOnlyForActiveTab`
+
+Set this flag (default = false) to show label texts in dock area tabs only
+for active tabs. Inactive tabs only show their icon:
+
+![MShowTabTextOnlyForActiveTab true](cfg_flag_ShowTabTextOnlyForActiveTab_true.png)
+
 ## Auto-Hide Configuration Flags
 
 ### Auto Hide Dock Widgets
@@ -512,7 +509,7 @@ Enabling this feature adds a button with a pin icon to each dock area.
 ![DockAreaHasAutoHideButton true](cfg_flag_DockAreaHasAutoHideButton.png)
 
 By clicking this button, the current dock widget (or the complete area - depending on the
-configuration flags) will be pinned to a certain border. The border is choosen
+configuration flags) will be pinned to a certain border. The border is chosen
 depending on the location of the dock area. If you click the pin button while
 holding down the **Ctrl** key, the whole dock area will be pinned to a certain
 border.
@@ -534,6 +531,59 @@ the Auto-Hide widget is shown, if the user hovers over the Auto-Hide tab and is
 collapsed if the mouse cursor leaves the Auto-Hide widget. Showing and hiding
 by mouse click still works if this feature is enabled.
 
+### Drag & Drop to Auto-Hide
+
+You can easily drag any dock widget or any floating widget to the
+borders of a window to pin it as a auto-hide tab in one of the 4 sidebars.
+If you drag a dock widget close the one of the four window borders, special
+drop overlays will be shown to indicate the drop area for auto-hide widgets:
+
+![Auo-Hide drag to Sidebar](AutoHide_Drag_to_Sidebar.gif)
+
+Of course, this also works with dock areas:
+
+![Auo-Hide drag Dock Area](AutoHide_Drag_DockArea.gif)
+
+If you drag a dock widget or dock area into a sidebar, then you even have
+control over where tabs are inserted. Simply drag your mouse over a specific
+auto-hide tab, and your dragged dock widget will be inserted before this tab.
+Drag to the sidebar area behind the last tab, and the dragged widget will be
+appended as last tab. In the following screen capture, the **Image Viewer 1** will
+be inserted before the **Table 0** Auto-Hide tab and the **Image Viewer 2**
+is appended behind the last tab:
+
+![Auo-Hide tab insert order](AutoHide_Tab_Insert_Order.gif)
+
+### Auto-Hide Tab Insertion Order
+
+It is also possible to drag Auto-Hide tabs to a new auto-hide position.
+That means, you can drag them to a different border or sidebar:
+
+![Auto-Hide change sidebar](AutoHide_Change_Sidebar.gif)
+
+### Auto-Hide Tab Sorting
+
+You can drag Auto-Hide tabs to a new position in the current sidebar 
+to sort them:
+
+![Auo-Hide sort tabs](AutoHide_Sort_Tabs.gif)
+
+### Auto-Hide Drag to Float / Dock
+
+But that is not all. You can also simply move Auto-Hide tabs to another
+floating widget or dock them via drag and drop:
+
+![Auo-Hide drag to float or dock](AutoHide_Drag_to_Float_or_Dock.gif)
+
+### Auto-Hide Context Menu
+
+All Auto-Hide tabs now have a context menu, that provides all the functionality
+that you know from Dock widget tabs. With the **Pin To...** item from the
+context menu it is very easy to move an Auto-Hide tab to a different Auto-Hide
+sidebar:
+
+![Auo-Hide context menu](AutoHide_Context_Menu.png)
+
 ### Adding Auto Hide Widgets
 
 Adding an auto hide widget is similar to adding a dock widget, simply call
@@ -621,6 +671,39 @@ is shown, if the user hovers over the Auto-Hide tab or if the users moves the
 mouse outside of the Auto-Hide widget. Showing and hiding my mouse click still
 works if this feature is enabled.
 
+### `AutoHideCloseButtonCollapsesDock`
+
+Some users don't understand the distinction between closing an auto hide dock and
+collapsing an auto hide dock. This may lead to situations where they press the
+close button (losing the side tab widget) instead of simply clicking outside
+the auto hide dock (collapsing the dock). 
+
+![AutoHideCloseButtonCollapsesDock false](cfg_flag_AutoHideCloseButtonCollapsesDock_false.gif)
+
+If `AutoHideCloseButtonCollapsesDock` option is active, the
+close button in an auto hide widget collapses the auto hide widget instead of
+closing it.
+
+![AutoHideCloseButtonCollapsesDock true](cfg_flag_AutoHideCloseButtonCollapsesDock_true.gif)
+
+If you enable the `AutoHideHasMinimizeButton` flag, you should disable this
+flag our you will have two buttons with minimize functionality.
+
+### `AutoHideHasCloseButton`
+
+If this flag is set (default), then each auto hide widget has a close button:
+
+![AutoHideHasCloseButton](cfg_flag_AutoHideHasCloseButton.png)
+
+The functionality of the close button (close or minimize) is configured by the
+`AutoHideCloseButtonCollapsesDock` flag.
+
+### `AutoHideHasMinimizeButton`
+
+If this flag is set (disabled by default), then each auto hide widget has a minimize button.
+
+![AutoHideHasMinimizeButton](cfg_flag_AutoHideHasMinimizeButton.png)
+
 ## DockWidget Feature Flags
 
 ### `DockWidgetClosable`
@@ -631,10 +714,7 @@ If set, the dock widget will have a close button.
 
 If a dock widget is movable, then it and can be moved to a new position in the
 current dock container. Disable this flag to prevent moving of a dock widget
-via mouse. If the `OpaqueUndocking` configuration flag is set, then dock widgets
-are immediately undocked into floating widgets. That means, moving is only
-possible in this case, if the dock widget is also floatable (feature flag
-`DockWidgetFloatable` is set).
+via mouse.
 
 ### `DockWidgetFloatable`
 

examples/autohide/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(AutoHideExample WIN32
     mainwindow.ui
 )
 target_include_directories(AutoHideExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(AutoHideExample PRIVATE qtadvanceddocking)
+target_link_libraries(AutoHideExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(AutoHideExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                   Qt${QT_VERSION_MAJOR}::Gui 
                                                   Qt${QT_VERSION_MAJOR}::Widgets)

examples/autohide/main.py

@@ -8,7 +8,7 @@ from PyQt5.QtWidgets import (QApplication, QLabel, QCalendarWidget, QFrame, QTre
                              QTableWidget, QFileSystemModel, QPlainTextEdit, QToolBar,
                              QWidgetAction, QComboBox, QAction, QSizePolicy, QInputDialog)
 
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
 MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)

examples/centralwidget/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(CentralWidgetExample WIN32
     mainwindow.ui
 )
 target_include_directories(CentralWidgetExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(CentralWidgetExample PRIVATE qtadvanceddocking)
+target_link_libraries(CentralWidgetExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(CentralWidgetExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                   Qt${QT_VERSION_MAJOR}::Gui 
                                                   Qt${QT_VERSION_MAJOR}::Widgets)

examples/centralwidget/main.py

@@ -8,7 +8,7 @@ from PyQt5.QtWidgets import (QApplication, QLabel, QCalendarWidget, QFrame, QTre
                              QTableWidget, QFileSystemModel, QPlainTextEdit, QToolBar,
                              QWidgetAction, QComboBox, QAction, QSizePolicy, QInputDialog)
 
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
 MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)

examples/deleteonclose/CMakeLists.txt

@@ -7,7 +7,7 @@ add_executable(DeleteOnCloseTest WIN32
     main.cpp
 )
 target_include_directories(DeleteOnCloseTest PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(DeleteOnCloseTest PRIVATE qtadvanceddocking)
+target_link_libraries(DeleteOnCloseTest PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(DeleteOnCloseTest PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                Qt${QT_VERSION_MAJOR}::Gui 
                                                Qt${QT_VERSION_MAJOR}::Widgets)

examples/deleteonclose/main.py

@@ -1,6 +1,6 @@
 import sys
 
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 from PyQt5.QtGui import QCloseEvent
 from PyQt5.QtCore import (qDebug, pyqtSlot, QObject, pyqtSignal)
 from PyQt5.QtWidgets import (QMainWindow, QAction, QTextEdit, QApplication,
@@ -70,4 +70,4 @@ if __name__ == '__main__':
     action.triggered.connect(on_action2_triggered)
     
     w.show()
-    app.exec_()
+    app.exec_()

examples/dockindock/CMakeLists.txt

@@ -12,7 +12,7 @@ add_executable(DockInDockExample WIN32
     mainframe.cpp
 )
 target_include_directories(DockInDockExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(DockInDockExample PRIVATE qtadvanceddocking)
+target_link_libraries(DockInDockExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(DockInDockExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                            Qt${QT_VERSION_MAJOR}::Gui 
                                            Qt${QT_VERSION_MAJOR}::Widgets)

examples/dockindock/dockindock.py

@@ -3,7 +3,7 @@ import sys
 from PyQt5.QtWidgets import (QApplication, QWidget, QVBoxLayout, QMessageBox,
                              QInputDialog, QMenu, QLineEdit)
 from PyQt5.QtGui import QIcon
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 from dockindockmanager import DockInDockManager
 from perspectiveactions import LoadPerspectiveAction, RemovePerspectiveAction
@@ -200,4 +200,4 @@ class DockInDockWidget(QWidget):
                 
             for closed in self.getManager().dockWidgetsMap().values():
                 if not closed in visible_widgets:
-                    self.dumpStatus(widget=closed, tab=tab, suffix=" (closed)")
+                    self.dumpStatus(widget=closed, tab=tab, suffix=" (closed)")

examples/dockindock/dockindockmanager.py

@@ -1,7 +1,7 @@
 from PyQt5.QtWidgets import QAction, QMenu, QInputDialog, QLineEdit
 from PyQt5.QtCore import QSettings
 
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 CHILD_PREFIX = "Child-"
 
@@ -211,4 +211,4 @@ class MoveDockWidgetAction(QAction):
             widget.dockManager().removeDockWidget(widget)
             move_to.addDockWidget(QtAds.CenterDockWidgetArea, widget, move_to.getInsertDefaultPos())
         else:
-            assert False
+            assert False

examples/dockindock/main.cpp

@@ -1,5 +1,5 @@
 #include <QApplication>
-#include "../../examples/simple/MainWindow.h"
+#include "mainframe.h"
 
 int main(int argc, char *argv[])
 {

examples/dockindock/main.py

@@ -4,7 +4,7 @@ import atexit
 
 from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel
 from PyQt5.QtCore import Qt
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 from perspectives import PerspectivesManager
 from dockindock import DockInDockWidget
@@ -69,4 +69,4 @@ if __name__ == '__main__':
     
     w = MainWindow()
     w.show()
-    app.exec_()
+    app.exec_()

examples/dockindock/perspectives.py

@@ -4,7 +4,7 @@ import shutil
 import atexit
 
 from PyQt5.QtCore import pyqtSignal, QSettings, QObject
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 from dockindockmanager import DockInDockManager
 from dockindock import DockInDockWidget
@@ -200,4 +200,4 @@ class PerspectivesManager(QObject):
                 except FileNotFoundError:
                     pass
                 if not shutil.copy(settings.fileName(), to_save):
-                    assert False
+                    assert False

examples/emptydockarea/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(EmptyDockAreaExample WIN32
     mainwindow.ui
 )
 target_include_directories(EmptyDockAreaExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(EmptyDockAreaExample PRIVATE qtadvanceddocking)
+target_link_libraries(EmptyDockAreaExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(EmptyDockAreaExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                   Qt${QT_VERSION_MAJOR}::Gui 
                                                   Qt${QT_VERSION_MAJOR}::Widgets)

examples/emptydockarea/main.py

@@ -6,7 +6,7 @@ from PyQt5.QtCore import Qt, QSignalBlocker
 from PyQt5.QtWidgets import (QApplication, QMainWindow, QLabel, QComboBox, QTableWidget,
                              QAction, QWidgetAction, QSizePolicy, QInputDialog)
 from PyQt5.QtGui import QCloseEvent
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
     
 UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
@@ -105,4 +105,4 @@ if __name__ == '__main__':
     
     w = CMainWindow()
     w.show()
-    app.exec_()
+    app.exec_()

examples/hideshow/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(HideShowExample WIN32
     MainWindow.ui
 )
 target_include_directories(HideShowExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(HideShowExample PRIVATE qtadvanceddocking)
+target_link_libraries(HideShowExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(HideShowExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                              Qt${QT_VERSION_MAJOR}::Gui 
                                              Qt${QT_VERSION_MAJOR}::Widgets)

examples/sidebar/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(SidebarExample WIN32
     MainWindow.ui
 )
 target_include_directories(SidebarExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(SidebarExample PRIVATE qtadvanceddocking)
+target_link_libraries(SidebarExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(SidebarExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                             Qt${QT_VERSION_MAJOR}::Gui 
                                             Qt${QT_VERSION_MAJOR}::Widgets)

examples/sidebar/main.py

@@ -5,7 +5,7 @@ from PyQt5 import uic
 from PyQt5.QtCore import Qt, QMargins
 from PyQt5.QtWidgets import QApplication, QLabel, QVBoxLayout, QPlainTextEdit
 
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 UI_FILE = os.path.join(os.path.dirname(__file__), 'MainWindow.ui')
 MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)

examples/simple/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(SimpleExample WIN32
     MainWindow.ui
 )
 target_include_directories(SimpleExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(SimpleExample PRIVATE qtadvanceddocking)
+target_link_libraries(SimpleExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(SimpleExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                            Qt${QT_VERSION_MAJOR}::Gui 
                                            Qt${QT_VERSION_MAJOR}::Widgets)

examples/simple/main.py

@@ -6,7 +6,7 @@ from PyQt5.QtCore import Qt, QTimer
 from PyQt5.QtGui import QCloseEvent
 from PyQt5.QtWidgets import QApplication, QLabel
 
-from PyQtAds import QtAds
+import PyQtAds as QtAds
 
 UI_FILE = os.path.join(os.path.dirname(__file__), 'MainWindow.ui')
 MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)

project.py

@@ -1,4 +1,5 @@
 import os
+import sys
 
 from pyqtbuild import PyQtBindings, PyQtProject
 from sipbuild import Option
@@ -16,12 +17,37 @@ class ads(PyQtBindings):
 		""" Initialise the bindings. """
 
 		super().__init__(project, 'ads')
+		
+	def get_options(self):
+		"""Our custom options that a user can pass to sip-build."""
+		options = super().get_options()
+		options += [
+		    Option('ads_incdir',
+				   help='the directory containing the ads header file',
+				   metavar='DIR'),
+		    Option('ads_libdir',
+				   help='the directory containing the ads library',
+				   metavar='DIR'),
+		    Option('ads_lib',
+				   help='the ads library',
+				   metavar='LIB'),
+		]
+		return options
 
 	def apply_user_defaults(self, tool):
 		""" Set default values for user options that haven't been set yet. """
-
+		
 		resource_file = os.path.join(self.project.root_dir,'src','ads.qrc')
 		print("Adding resource file to qmake project: ", resource_file)
 		self.builder_settings.append('RESOURCES += '+resource_file)
 		
+		if self.ads_lib is not None:
+		    self.libraries.append(self.ads_lib)
+		    
+		if self.ads_incdir is not None:
+		    self.include_dirs.append(self.ads_incdir)
+		    
+		if self.ads_libdir is not None:
+		    self.library_dirs.append(self.ads_libdir)
+		
 		super().apply_user_defaults(tool)

pyproject.toml

@@ -1,12 +1,12 @@
 # Specify the build system.
 [build-system]
-requires = ["sip >=6.0.2, <6.6", "PyQt-builder >=1.6, <2", "PyQt5>=5.15.4", "PyQt5-sip<13,>=12.8"]
+requires = ["sip >=6.0.2", "PyQt-builder >=1.6", "PyQt5>=5.15", "PyQt5-sip>=12.8"]
 build-backend = "sipbuild.api"
 
 # Specify the PEP 566 metadata for the project.
 [tool.sip.metadata]
 name = "PyQtAds"
-version = "3.8.2"
+version = "4.4.1"
 summary = "Python bindings for Qt Advanced Docking System"
 home-page = "https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/"
 license = "LGPL v2.1"
@@ -16,13 +16,18 @@ description-content-type = "text/markdown"
 
 [tool.sip.project]
 tag-prefix = "QtAds"
+dunder-init = true
 
 [tool.sip.bindings.ads]
+pep484-pyi = true
 define-macros = ["ADS_SHARED_EXPORT"]
 sip-file = "ads.sip"
 include-dirs = ["src"]
-qmake-QT = ["widgets"]
+qmake-QT = ["widgets", "gui-private; platform_system == 'Linux'"]
 headers = [
+    "src/AutoHideDockContainer.h",
+    "src/AutoHideSideBar.h",
+    "src/AutoHideTab.h",
 	"src/DockAreaTabBar.h",
 	"src/DockAreaTitleBar.h",
 	"src/DockAreaTitleBar_p.h",
@@ -40,10 +45,15 @@ headers = [
 	"src/FloatingDockContainer.h",
 	"src/FloatingDragPreview.h",
 	"src/IconProvider.h",
+    "src/PushButton.h",
+    "src/ResizeHandle.h",
 	"src/ads_globals.h",
-	# "src/linux/FloatingWidgetTitleBar.h",
+	"src/linux/FloatingWidgetTitleBar.h; platform_system == 'Linux'",
 ]
 sources = [
+    "src/AutoHideTab.cpp",
+    "src/AutoHideDockContainer.cpp",
+    "src/AutoHideSideBar.cpp",
 	"src/DockAreaTabBar.cpp",
 	"src/DockAreaTitleBar.cpp",
 	"src/DockAreaWidget.cpp",
@@ -60,6 +70,8 @@ sources = [
 	"src/FloatingDockContainer.cpp",
 	"src/FloatingDragPreview.cpp",
 	"src/IconProvider.cpp",
+	"src/PushButton.cpp",
+	"src/ResizeHandle.cpp",
 	"src/ads_globals.cpp",
-	# "src/linux/FloatingWidgetTitleBar.cpp",
+	"src/linux/FloatingWidgetTitleBar.cpp; platform_system == 'Linux'",
 ]

setup.cfg

@@ -1,7 +0,0 @@
-[versioneer]
-VCS = git
-style = pep440
-versionfile_source = PyQtAds/_version.py
-versionfile_build  = PyQtAds/_version.py
-tag_prefix =
-

setup.py

@@ -1,396 +0,0 @@
-import os
-import sys
-import shlex
-import shutil
-import subprocess
-import glob
-
-import versioneer
-
-from setuptools import setup, find_packages
-from setuptools.command.build_py import build_py
-from setuptools.extension import Extension
-from distutils import sysconfig, dir_util, spawn, log, cmd
-from distutils.dep_util import newer
-import sipdistutils
-import sipconfig
-from PyQt5.QtCore import PYQT_CONFIGURATION
-from PyQt5.pyrcc_main import processResourceFile
-
-MODULE_NAME = "ads"
-SRC_PATH = "PyQtAds"
-
-REQUIRE_PYQT = True
-if "--conda-recipe" in sys.argv:
-    REQUIRE_PYQT = False
-    sys.argv.remove("--conda-recipe")
-
-
-class HostPythonConfiguration(object):
-    def __init__(self):
-        self.platform = sys.platform
-        self.version = sys.hexversion>>8
-
-        self.inc_dir = sysconfig.get_python_inc()
-        self.venv_inc_dir = sysconfig.get_python_inc(prefix=sys.prefix)
-        self.module_dir = sysconfig.get_python_lib(plat_specific=1)
-
-        if sys.platform == 'win32':
-            self.data_dir = sys.prefix
-            self.lib_dir = sys.prefix +'\\libs'
-        else:
-            self.data_dir = sys.prefix + '/share'
-            self.lib_dir = sys.prefix + '/lib'
-
-
-class TargetQtConfiguration(object):
-    def __init__(self, qmake):
-        pipe = os.popen(' '.join([qmake, '-query']))
-
-        for l in pipe:
-            l = l.strip()
-
-            tokens = l.split(':', 1)
-            if isinstance(tokens, list):
-                if len(tokens) != 2:
-                    error("Unexpected output from qmake: '%s'\n" % l)
-
-                name, value = tokens
-            else:
-                name = tokens
-                value = None
-
-            name = name.replace('/', '_')
-            setattr(self, name, value)
-
-        pipe.close()
-
-
-class build_ext(sipdistutils.build_ext):
-
-    description = "Builds the " + MODULE_NAME + " module."
-
-    user_options = sipdistutils.build_ext.user_options + [
-        ('qmake-bin=', None, "Path to qmake binary"),
-        ('sip-bin=', None, "Path to sip binary"),
-        ('qt-include-dir=', None, "Path to Qt headers"),
-        ('pyqt-sip-dir=', None, "Path to PyQt's SIP files"),
-        ('pyqt-sip-flags=', None, "SIP flags used to generate PyQt bindings"),
-        ('sip-dir=', None, "Path to module's SIP files"),
-        ('inc-dir=', None, "Path to module's include files")
-    ]
-
-    def initialize_options (self):
-        super().initialize_options()
-        self.qmake_bin = 'qmake'
-        self.sip_bin = None
-        self.qt_include_dir = None
-        self.qt_libinfix = ''
-        self.pyqt_sip_dir = None
-        self.pyqt_sip_flags = None
-        self.sip_files_dir = None
-        self.sip_inc_dir = None
-        self.inc_dir = None
-        self.pyconfig = HostPythonConfiguration()
-        self.qtconfig = TargetQtConfiguration(self.qmake_bin)
-        self.config = sipconfig.Configuration()
-        self.config.default_mod_dir = ("/usr/local/lib/python%i.%i/dist-packages" %
-                                      (sys.version_info.major, sys.version_info.minor))
-
-    def finalize_options (self):
-        super().finalize_options()
-
-        if not self.qt_include_dir:
-            self.qt_include_dir = self.qtconfig.QT_INSTALL_HEADERS
-
-        if not self.qt_libinfix:
-            try:
-                with open(os.path.join(self.qtconfig.QT_INSTALL_PREFIX, 'mkspecs', 'qconfig.pri'), 'r') as f:
-                    for line in f.readlines():
-                        if line.startswith('QT_LIBINFIX'):
-                            self.qt_libinfix = line.split('=')[1].strip('\n').strip()
-            except (FileNotFoundError, IndexError):
-                pass
-
-        if not self.pyqt_sip_dir:
-            self.pyqt_sip_dir = os.path.join(self.pyconfig.data_dir, 'sip', 'PyQt5')
-
-        if not self.pyqt_sip_flags:
-            self.pyqt_sip_flags = PYQT_CONFIGURATION.get('sip_flags', '')
-
-        if not self.sip_files_dir:
-            self.sip_files_dir = os.path.abspath(os.path.join(".", "sip"))
-
-        if not self.sip_inc_dir:
-            self.sip_inc_dir = self.pyconfig.venv_inc_dir
-
-        if not self.inc_dir:
-            self.inc_dir = os.path.abspath(os.path.join(".", "src"))
-
-        if not self.qt_include_dir:
-            raise SystemExit('Could not find Qt5 headers. '
-                             'Please specify via --qt-include-dir=')
-
-        if not self.pyqt_sip_dir:
-            raise SystemExit('Could not find PyQt SIP files. '
-                             'Please specify containing directory via '
-                             '--pyqt-sip-dir=')
-
-        if not self.pyqt_sip_flags:
-            raise SystemExit('Could not find PyQt SIP flags. '
-                             'Please specify via --pyqt-sip-flags=')
-
-    def _find_sip(self):
-        """override _find_sip to allow for manually speficied sip path."""
-        
-        # 1. Manually specified sip_bin
-        if self.sip_bin:
-            return self.sip_bin
-
-        # 2. Path determined from sipconfig.Configuration()
-        #    This may not exist, depending on conda build configuration.
-        sip_bin = super()._find_sip()
-        if os.path.exists(sip_bin):
-            return sip_bin
-
-        # 3. Finally, fall back to sip binary found in path
-        sip_bin = shutil.which('sip')
-        if sip_bin:
-            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
-        if hasattr(self, '_sip_sipfiles_dir'):
-            cmd += ['-I', self._sip_sipfiles_dir()]
-        cmd += [
-            "-I", self.sip_files_dir,
-            "-I", self.pyqt_sip_dir,
-            "-I", self.sip_inc_dir,
-            "-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:
-            return
-
-        # Add the local include directory to the include path
-        if extension is not None:
-            extension.extra_compile_args += ['-D', 'QT_CORE_LIB',
-                                             '-D', 'QT_GUI_LIB',
-                                             '-D', 'QT_WIDGETS_LIB',
-                                             '-D', 'ADS_SHARED_EXPORT']
-            extension.include_dirs += [self.qt_include_dir, self.inc_dir,
-                            os.path.join(self.qt_include_dir, 'QtCore'),
-                            os.path.join(self.qt_include_dir, 'QtGui'),
-                            os.path.join(self.qt_include_dir, 'QtWidgets')]
-            extension.libraries += ['Qt5Core' + self.qt_libinfix,
-                                    'Qt5Gui' + self.qt_libinfix,
-                                    'Qt5Widgets' + self.qt_libinfix]
-
-            if sys.platform == 'win32':
-                extension.library_dirs += [self.qtconfig.QT_INSTALL_LIBS,
-                                       self.inc_dir, self._sip_output_dir()]
-            elif sys.platform == 'darwin':
-                extension.extra_compile_args += ['-F' + self.qtconfig.QT_INSTALL_LIBS,
-                    '-std=c++11', '-stdlib=libc++', '-mmacosx-version-min=10.9']
-                extension.extra_link_args += ['-F' + self.qtconfig.QT_INSTALL_LIBS,
-                    '-mmacosx-version-min=10.9']
-            elif sys.platform == 'linux':
-                extension.extra_compile_args += ['-std=c++11']
-
-        return super().swig_sources(sources, extension)
-
-    def build_extension(self, ext):        
-        cppsources = [source for source in ext.sources if source.endswith(".cpp")]
-        headersources = ['src/DockAreaTitleBar_p.h']
-
-        dir_util.mkpath(self.build_temp, dry_run=self.dry_run)
-
-        def get_moc_args(out_file, source):
-            if sys.platform.startswith('linux'):
-                return ["moc", "-D", "Q_OS_LINUX=1", "-o", out_file, source]
-            if sys.platform.startswith('darwin'):
-                return ["moc", "-D", "Q_OS_MACOS=1", "-o", out_file, source]
-            if sys.platform.startswith('win'):
-                return ["moc", "-D", "Q_OS_WIN=1", "-o", out_file, source]
-            return ["moc", "-o", out_file, source]
-
-        # Run moc on all header files.
-        for source in cppsources:
-            # *.cpp -> *.moc
-            moc_file = os.path.basename(source).replace(".cpp", ".moc")
-            out_file = os.path.join(self.build_temp, moc_file)
-
-            if newer(source, out_file) or self.force:
-                spawn.spawn(get_moc_args(out_file, source), dry_run=self.dry_run)
-
-            header = source.replace(".cpp", ".h")
-            if os.path.exists(header):
-                # *.h -> moc_*.cpp
-                moc_file = "moc_" + os.path.basename(header).replace(".h", ".cpp")
-                out_file = os.path.join(self.build_temp, moc_file)
-
-                if newer(header, out_file) or self.force:
-                    spawn.spawn(get_moc_args(out_file, header), dry_run=self.dry_run)
-
-                if os.path.getsize(out_file) > 0:
-                    ext.sources.append(out_file)
-
-        # Run moc on all orphan header files.
-        for source in headersources:
-            # *.cpp -> *.moc
-            moc_file = os.path.basename(source).replace(".h", ".moc")
-            out_file = os.path.join(self.build_temp, moc_file)
-
-            if newer(source, out_file) or self.force:
-                spawn.spawn(get_moc_args(out_file, source),
-                            dry_run=self.dry_run)
-
-            header = source
-            if os.path.exists(header):
-                # *.h -> moc_*.cpp
-                moc_file = "moc_" + os.path.basename(header).replace(
-                    ".h", ".cpp")
-                out_file = os.path.join(self.build_temp, moc_file)
-
-                if newer(header, out_file) or self.force:
-                    spawn.spawn(get_moc_args(out_file, header),
-                                dry_run=self.dry_run)
-
-                if os.path.getsize(out_file) > 0:
-                    ext.sources.append(out_file)
-
-        # Add the temp build directory to include path, for compiler to find
-        # the created .moc files
-        ext.include_dirs += [self._sip_output_dir()]
-        
-        # Run rcc on all resource files
-        resources = [source for source in ext.sources if source.endswith(".qrc")]
-        for source in resources:
-            ext.sources.remove(source)
-            out_file = os.path.join(self.build_temp, "qrc_" + os.path.basename(source).replace(".qrc", ".cpp"))
-            if newer(header, out_file) or self.force:
-                spawn.spawn(["rcc", "-name", os.path.splitext(os.path.basename(source))[0], source, "-o", out_file], dry_run=self.dry_run)
-
-            if os.path.getsize(out_file) > 0:
-                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):
-    """A custom command to compile the resource file into a Python file"""
-
-    description = "Compile the qrc file into a python file"
-
-    def initialize_options(self):
-        return
-
-    def finalize_options(self):
-        return
-
-    def run(self):
-        processResourceFile([os.path.join('src', 'ads.qrc')],
-                            os.path.join(SRC_PATH, 'rc.py'), False)
-
-
-class BuildPyCommand(build_py):
-    """Custom build command to include ProcessResource command"""
-
-    def run(self):
-        self.run_command("process_resource")
-        build_py.run(self)
-
-
-setup_requires = ["PyQt5"] if REQUIRE_PYQT else []
-cpp_sources = glob.glob(os.path.join('src', '*.cpp'))
-sip_sources = [os.path.join('sip', MODULE_NAME + '.sip')]
-resources = [os.path.join('src', MODULE_NAME + '.qrc')]
-if sys.platform == 'linux':
-    cpp_sources += glob.glob(os.path.join('src', 'linux', '*.cpp'))
-ext_modules = [Extension('PyQtAds.QtAds.ads', cpp_sources + sip_sources + resources)]
-
-install_requires = ["PyQt5"]
-if sys.platform == 'win32':
-    install_requires.append("pywin32")
-
-
-with open('README.md', 'r') as f:
-    LONG_DESCRIPTION = f.read()
-
-setup(
-    name = SRC_PATH,
-    author = "Nicolas Elie",
-    author_email = "nicolas.elie@cnrs.fr",
-    url = "https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System",
-    version = versioneer.get_version(),
-    description = "Advanced Docking System for Qt",
-    long_description = LONG_DESCRIPTION,
-    keywords = ["qt"],
-    license = "LGPLv2+",
-    classifiers = ["Development Status :: 4 - Beta",
-                   "Intended Audience :: Developers",
-                   "License :: OSI Approved :: GNU Lesser General Public License v2 or later (LGPLv2+)",
-                   "Operating System :: OS Independent",
-                   "Topic :: Software Development :: Libraries :: Python Modules",
-                   "Environment :: Win32 (MS Windows)",
-                   "Environment :: MacOS X",
-                   "Environment :: X11 Applications :: Qt",
-                   "Programming Language :: Python :: 3",
-                   "Programming Language :: Python :: 3.2",
-                   "Programming Language :: Python :: 3.3",
-                   "Programming Language :: Python :: 3.4",
-                   "Programming Language :: Python :: 3.5",
-                   "Programming Language :: Python :: 3.6",
-                   "Programming Language :: Python :: 3.7"],
-    ext_modules = ext_modules,
-    cmdclass = versioneer.get_cmdclass({'process_resource': ProcessResourceCommand,
-                                        'build_py': BuildPyCommand,
-                                        'build_ext': build_ext}),
-    packages = find_packages(),
-    setup_requires = setup_requires,
-    install_requires = install_requires,
-    zip_safe=False
-)

sip/AutoHideDockContainer.sip

@@ -0,0 +1,49 @@
+%Import QtWidgets/QtWidgetsmod.sip
+
+%If (Qt_5_0_0 -)
+
+namespace ads
+{
+
+class CAutoHideDockContainer : QFrame
+{
+
+    %TypeHeaderCode
+    #include <AutoHideDockContainer.h>
+    %End
+
+protected:
+	virtual bool eventFilter(QObject* watched, QEvent* event);
+	virtual void resizeEvent(QResizeEvent* event);
+	virtual void leaveEvent(QEvent *event);
+	virtual bool event(QEvent* event);
+	void updateSize();
+	void saveState(QXmlStreamWriter& Stream);
+
+public:
+	CAutoHideDockContainer(ads::CDockWidget* DockWidget /Transfer/, ads::SideBarLocation area,
+		ads::CDockContainerWidget* parent /TransferThis/);
+	virtual ~CAutoHideDockContainer();
+	ads::CAutoHideSideBar* autoHideSideBar() const;
+	ads::CAutoHideTab* autoHideTab() const;
+	ads::CDockWidget* dockWidget() const;
+    int tabIndex() const;
+	void addDockWidget(ads::CDockWidget* DockWidget /Transfer/);
+	ads::SideBarLocation sideBarLocation() const;
+	void setSideBarLocation(ads::SideBarLocation SideBarLocation);
+	ads::CDockAreaWidget* dockAreaWidget() const;
+	ads::CDockContainerWidget* dockContainer() const;
+    void moveContentsToParent();
+	void cleanupAndDelete();
+	void toggleView(bool Enable);
+	void collapseView(bool Enable);
+	void toggleCollapseState();
+	void setSize(int Size);
+    void resetToInitialDockWidgetSize();
+    Qt::Orientation orientation() const;
+    void moveToNewSideBarLocation(ads::SideBarLocation);
+};
+
+};
+
+%End

sip/AutoHideSideBar.sip

@@ -0,0 +1,46 @@
+%Import QtWidgets/QtWidgetsmod.sip
+
+%If (Qt_5_0_0 -)
+
+namespace ads
+{
+
+
+class CAutoHideSideBar : QScrollArea
+{
+
+    %TypeHeaderCode
+    #include <AutoHideSideBar.h>
+    %End
+
+protected:
+	virtual bool eventFilter(QObject *watched, QEvent *event);
+	void saveState(QXmlStreamWriter& Stream) const;
+	void insertTab(int Index, ads::CAutoHideTab* SideTab /Transfer/);
+
+public:
+    CAutoHideSideBar(ads::CDockContainerWidget* parent /TransferThis/, SideBarLocation area);
+	virtual ~CAutoHideSideBar();
+	void removeTab(ads::CAutoHideTab* SideTab) /TransferBack/;
+	ads::CAutoHideDockContainer* insertDockWidget(int Index, ads::CDockWidget* DockWidget /Transfer/);
+	void removeAutoHideWidget(ads::CAutoHideDockContainer* AutoHideWidget) /TransferBack/;
+	void addAutoHideWidget(ads::CAutoHideDockContainer* AutoHideWidget, int Index);
+	Qt::Orientation orientation() const;
+	ads::CAutoHideTab* tab(int index) const;
+    int tabAt(const QPoint& Pos) const;
+    int tabInsertIndexAt(const QPoint& Pos) const;
+    int indexOfTab(const CAutoHideTab& Tab) const;
+	int count() const;
+    int visibleTabCount() const;
+    bool hasVisibleTabs() const;
+	ads::SideBarLocation sideBarLocation() const;
+	virtual QSize minimumSizeHint() const;
+	virtual QSize sizeHint() const;
+	int spacing() const;
+	void setSpacing(int Spacing);
+	CDockContainerWidget* dockContainer() const;
+};
+
+};
+
+%End

sip/AutoHideTab.sip

@@ -0,0 +1,44 @@
+%Import QtWidgets/QtWidgetsmod.sip
+
+%If (Qt_5_0_0 -)
+
+namespace ads
+{
+
+class CAutoHideTab : CPushButton
+{
+    
+    %TypeHeaderCode
+    #include <AutoHideTab.h>
+    %End
+
+protected:
+	void setSideBar(ads::CAutoHideSideBar *SideTabBar);
+	void removeFromSideBar();
+    virtual bool event(QEvent* event);
+    virtual void contextMenuEvent(QContextMenuEvent* ev);
+	virtual void mousePressEvent(QMouseEvent* ev);
+	virtual void mouseReleaseEvent(QMouseEvent* ev);
+	virtual void mouseMoveEvent(QMouseEvent* ev);
+
+public:
+	CAutoHideTab(QWidget* parent /TransferThis/ = 0);
+	virtual ~CAutoHideTab();
+	void updateStyle();
+	ads::SideBarLocation sideBarLocation() const;
+	void setOrientation(Qt::Orientation Orientation);
+	Qt::Orientation orientation() const;
+	bool isActiveTab() const;
+	ads::CDockWidget* dockWidget() const;
+	void setDockWidget(ads::CDockWidget* DockWidget);
+	bool iconOnly() const;
+	ads::CAutoHideSideBar* sideBar() const;
+    int tabIndex() const;
+    void setDockWidgetFloating();
+    void unpinDockWidget();
+    void requestCloseDockWidget();
+};
+
+};
+
+%End

sip/DockAreaTabBar.sip

@@ -23,6 +23,8 @@ public:
 	int currentIndex() const;
 	ads::CDockWidgetTab* currentTab() const;
 	ads::CDockWidgetTab* tab(int Index) const;
+    int tabAt(const QPoint& Pos) const;
+    int tabInsertIndexAt(const QPoint& Pos) const;
 	virtual bool eventFilter(QObject *watched, QEvent *event);
 	bool isTabOpen(int Index) const;
 	virtual QSize minimumSizeHint() const;

sip/DockAreaTitleBar.sip

@@ -5,6 +5,22 @@
 namespace ads
 {
 
+class CTitleBarButton : QToolButton
+{
+    %TypeHeaderCode
+    #include <DockAreaTitleBar.h>
+    %End
+    
+public:
+	CTitleBarButton(bool visible = true, QWidget* parent /TransferThis/ = Q_NULLPTR );
+	virtual void setVisible(bool);
+	void setShowInTitleBar(bool);
+
+
+protected:
+	bool event(QEvent *ev);
+};
+
 class CDockAreaTitleBar : QFrame
 {
     %TypeHeaderCode
@@ -26,12 +42,15 @@ public:
 	CDockAreaTitleBar(ads::CDockAreaWidget* parent /TransferThis/);
 	virtual ~CDockAreaTitleBar();
 	ads::CDockAreaTabBar* tabBar() const;
-	QAbstractButton* button(ads::TitleBarButton which) const;
+	ads::CTitleBarButton* button(ads::TitleBarButton which) const;
+    ads::CElidingLabel* autoHideTitleLabel() const;
  	void updateDockWidgetActionsButtons();
 	virtual void setVisible(bool Visible);
 	void insertWidget(int index, QWidget *widget /Transfer/ );
 	int indexOf(QWidget *widget) const;
-
+    QString titleBarButtonToolTip(ads::TitleBarButton Button) const;
+    void setAreaFloating();
+    
 
 signals:
 	void tabBarClicked(int index);

sip/DockAreaTitleBar_p.sip

@@ -5,21 +5,6 @@
 namespace ads
 {
 
-class CTitleBarButton : QToolButton
-{
-    %TypeHeaderCode
-    #include <DockAreaTitleBar_p.h>
-    %End
-
-protected:
-    bool event(QEvent *ev);
-
-public:
-    CTitleBarButton(bool visible = true, QWidget* parent /TransferThis/ = Q_NULLPTR );
-    virtual void setVisible(bool visible);
-};
-
-
 class CSpacerWidget : QWidget
 {
     %TypeHeaderCode

sip/DockAreaWidget.sip

@@ -23,6 +23,7 @@ protected:
 	void updateTitleBarVisibility();
 	void internalSetCurrentDockWidget(ads::CDockWidget* DockWidget /Transfer/);
 	void markTitleBarMenuOutdated();
+    void updateTitleBarButtonVisibility(bool IsTopLevel) const;
 
 protected slots:
 	void toggleView(bool Open);
@@ -39,6 +40,9 @@ public:
 	virtual ~CDockAreaWidget();
 	ads::CDockManager* dockManager() const;
 	ads::CDockContainerWidget* dockContainer() const;
+    ads::CAutoHideDockContainer* autoHideDockContainer() const;
+    bool isAutoHide() const;
+    void setAutoHideDockContainer(CAutoHideDockContainer*);
 	virtual QSize minimumSizeHint() const;
 	QRect titleBarGeometry() const;
 	QRect contentAreaGeometry() const;
@@ -52,6 +56,8 @@ public:
 	ads::CDockWidget* currentDockWidget() const;
 	void setCurrentDockWidget(ads::CDockWidget* DockWidget);
 	void saveState(QXmlStreamWriter& Stream) const;
+    static bool restoreState(ads::CDockingStateReader& Stream, ads::CDockAreaWidget*& CreatedWidget,
+		bool Testing, ads::CDockContainerWidget* ParentContainer);
  	ads::CDockWidget::DockWidgetFeatures features(ads::eBitwiseOperator Mode = ads::BitwiseAnd) const;
 	QAbstractButton* titleBarButton(ads::TitleBarButton which) const;
 	virtual void setVisible(bool Visible);
@@ -65,11 +71,16 @@ public:
     void setDockAreaFlag(eDockAreaFlag Flag, bool On);
     
     bool isCentralWidgetArea() const;
+    bool containsCentralWidget() const;
+    bool isTopLevelArea() const;
 
 public slots:
 	void setCurrentIndex(int index);
 	void closeArea();
+    void setAutoHide(bool Enable, SideBarLocation Location = ads::SideBarNone, int TabIndex = -1);
+    void toggleAutoHide(SideBarLocation Location = ads::SideBarNone);
 	void closeOtherAreas();
+    void setFloating();
 
 signals:
 	void tabBarClicked(int index);

sip/DockComponentsFactory.sip

@@ -13,6 +13,7 @@ class CDockComponentsFactory
 public:
 	virtual ~CDockComponentsFactory();
 	virtual CDockWidgetTab* createDockWidgetTab(CDockWidget* DockWidget /Transfer/ ) const;
+    virtual CAutoHideTab* createDockWidgetSideTab(CDockWidget* DockWidget /Transfer/) const;
 	virtual CDockAreaTabBar* createDockAreaTabBar(CDockAreaWidget* DockArea /Transfer/ ) const;
 	virtual CDockAreaTitleBar* createDockAreaTitleBar(CDockAreaWidget* DockArea /Transfer/ ) const;
 	static const CDockComponentsFactory* factory();

sip/DockContainerWidget.sip

@@ -9,8 +9,8 @@ namespace ads
  * Container that manages a number of dock areas with single dock widgets
  * or tabyfied dock widgets in each area.
  * Each window that support docking has a DockContainerWidget. That means
- * the main application window and all floating windows are ore contain
- * an DockContainerWidget.
+ * the main application window and all floating windows contain a
+ * DockContainerWidget.
  */
 class CDockContainerWidget : QFrame
 {
@@ -21,9 +21,10 @@ class CDockContainerWidget : QFrame
 protected:
 	virtual bool event(QEvent *e);
 	QSplitter* rootSplitter() const;
+    ads::CAutoHideDockContainer* createAndSetupAutoHideContainer(ads::SideBarLocation area, ads::CDockWidget* DockWidget /Transfer/, int TabIndex = -1);
 	void createRootSplitter();
 	void dropFloatingWidget(ads::CFloatingDockContainer* FloatingWidget, const QPoint& TargetPos);
-    void dropWidget(QWidget* Widget, DockWidgetArea DropArea, CDockAreaWidget* TargetAreaWidget);
+    void dropWidget(QWidget* Widget, DockWidgetArea DropArea, CDockAreaWidget* TargetAreaWidget, int TabIndex = -1);
 	void addDockArea(ads::CDockAreaWidget* DockAreaWidget /Transfer/, ads::DockWidgetArea area = ads::CenterDockWidgetArea);
 	void removeDockArea(ads::CDockAreaWidget* area /TransferBack/);
 	void saveState(QXmlStreamWriter& Stream) const;
@@ -33,124 +34,44 @@ protected:
 	ads::CDockAreaWidget* topLevelDockArea() const;
     QList<ads::CDockWidget*> dockWidgets() const;
     void updateSplitterHandles(QSplitter* splitter);
+    void registerAutoHideWidget(ads::CAutoHideDockContainer* AutoHideWidget /Transfer/);
+    void removeAutoHideWidget(ads::CAutoHideDockContainer* AutoHideWidget /TransferBack/);
+    void handleAutoHideWidgetEvent(QEvent* e, QWidget* w);
     
 public:
-	/**
-	 * Default Constructor
-	 */
 	CDockContainerWidget(ads::CDockManager* DockManager /TransferThis/, QWidget* parent /TransferThis/ = 0);
-
-	/**
-	 * Virtual Destructor
-	 */
 	virtual ~CDockContainerWidget();
-
-	/**
-	 * Adds dockwidget into the given area.
-	 * If DockAreaWidget is not null, then the area parameter indicates the area
-	 * into the DockAreaWidget. If DockAreaWidget is null, the Dockwidget will
-	 * be dropped into the container.
-	 * \return Returns the dock area widget that contains the new DockWidget
-	 */
 	ads::CDockAreaWidget* addDockWidget(ads::DockWidgetArea area, ads::CDockWidget* Dockwidget /Transfer/,
-		ads::CDockAreaWidget* DockAreaWidget /Transfer/ = 0);
-
-	/**
-	 * Removes dockwidget
-	 */
+    ads::CDockAreaWidget* DockAreaWidget /Transfer/ = 0,
+		int Index = -1);
 	void removeDockWidget(ads::CDockWidget* Dockwidget) /TransferBack/;
-
-	/**
-	 * Returns the current zOrderIndex
-	 */
 	virtual unsigned int zOrderIndex() const;
-
-	/**
-	 * This function returns true if this container widgets z order index is
-	 * higher than the index of the container widget given in Other parameter
-	 */
 	bool isInFrontOf(ads::CDockContainerWidget* Other) const;
-
-	/**
-	 * Returns the dock area at teh given global position or 0 if there is no
-	 * dock area at this position
-	 */
 	ads::CDockAreaWidget* dockAreaAt(const QPoint& GlobalPos) const;
-
-	/**
-	 * Returns the dock area at the given Index or 0 if the index is out of
-	 * range
-	 */
 	ads::CDockAreaWidget* dockArea(int Index) const;
-
-	/**
-	 * Returns the list of dock areas that are not closed
-	 * If all dock widgets in a dock area are closed, the dock area will be closed
-	 */
 	QList<ads::CDockAreaWidget*> openedDockAreas() const;
+    QList<ads::CDockWidget*> openedDockWidgets() const;
 	bool hasTopLevelDockWidget() const;
-
-	/**
-	 * Returns the number of dock areas in this container
-	 */
 	int dockAreaCount() const;
-
-	/**
-	 * Returns the number of visible dock areas
-	 */
 	int visibleDockAreaCount() const;
-
-	/**
-	 * This function returns true, if this container is in a floating widget
-	 */
 	bool isFloating() const;
-
-	/**
-	 * Dumps the layout for debugging purposes
-	 */
 	void dumpLayout();
-
-	/**
-	 * This functions returns the dock widget features of all dock widget in
-	 * this container.
-	 * A bitwise and is used to combine the flags of all dock widgets. That
-	 * means, if only dock widget does not support a certain flag, the whole
-	 * dock are does not support the flag.
-	 */
 	ads::CDockWidget::DockWidgetFeatures features() const;
-
-	/**
-	 * If this dock container is in a floating widget, this function returns
-	 * the floating widget.
-	 * Else, it returns a nullptr.
-	 */
 	ads::CFloatingDockContainer* floatingWidget() const;
-
-	/**
-	 * Call this function to close all dock areas except the KeepOpenArea
-	 */
 	void closeOtherAreas(ads::CDockAreaWidget* KeepOpenArea);
+    ads::CAutoHideSideBar* autoHideSideBar(SideBarLocation area) const;
+	QList<ads::CAutoHideDockContainer*> autoHideWidgets() const;
+	QRect contentRect() const;
+	QRect contentRectGlobal() const;
+	ads::CDockManager* dockManager() const;
 
 signals:
-	/**
-	 * This signal is emitted if one or multiple dock areas has been added to
-	 * the internal list of dock areas.
-	 * If multiple dock areas are inserted, this signal is emitted only once
-	 */
 	void dockAreasAdded();
-
-	/**
-	 * This signal is emitted if one or multiple dock areas has been removed
-	 */
+    void autoHideWidgetCreated(ads::CAutoHideDockContainer* AutoHideWidget);
 	void dockAreasRemoved();
-
-	/**
-	 * This signal is emitted if a dock area is opened or closed via
-	 * toggleView() function
-	 */
 	void dockAreaViewToggled(ads::CDockAreaWidget* DockArea, bool Open);
-}; // class DockContainerWidget
 };
- // namespace ads
+
+};
 
 %End

sip/DockFocusController.sip

@@ -22,6 +22,8 @@ public:
 	void notifyFloatingWidgetDrop(ads::CFloatingDockContainer* FloatingWidget);
     ads::CDockWidget* focusedDockWidget() const;
     void setDockWidgetTabFocused(ads::CDockWidgetTab* Tab);
+    void clearDockWidgetFocus(ads::CDockWidget* dockWidget);
+    void setDockWidgetTabPressed(bool Value);
 
 public slots:
 	void setDockWidgetFocused(ads::CDockWidget* focusedNow);

sip/DockManager.sip

@@ -156,7 +156,6 @@ public:
 		TabCloseButtonIsToolButton,
 		AllTabsHaveCloseButton,
 		RetainTabSizeWhenCloseButtonHidden,
-		OpaqueUndocking,
 		DragPreviewIsDynamic,
 		DragPreviewShowsContentPixmap,
 		DragPreviewHasWindowFrame,
@@ -180,6 +179,18 @@ public:
 		NonOpaqueWithWindowFrame,
 	};
     typedef QFlags<ads::CDockManager::eConfigFlag> ConfigFlags;
+	enum eAutoHideFlag
+	{
+		AutoHideFeatureEnabled,
+		DockAreaHasAutoHideButton,
+		AutoHideButtonTogglesArea,
+		AutoHideButtonCheckable,
+		AutoHideSideBarsIconOnly,
+		AutoHideShowOnMouseOver,
+        AutoHideCloseButtonCollapsesDock,
+		DefaultAutoHideConfig,
+	};
+    typedef QFlags<ads::CDockManager::eAutoHideFlag> AutoHideFlags;
 
 	CDockManager(QWidget* parent /TransferThis/ = 0);
 	virtual ~CDockManager();
@@ -187,13 +198,24 @@ public:
 	static void setConfigFlags(const ads::CDockManager::ConfigFlags Flags);
 	static void setConfigFlag(ads::CDockManager::eConfigFlag Flag, bool On = true);
 	static bool testConfigFlag(eConfigFlag Flag);
+	static ads::CDockManager::AutoHideFlags autoHideConfigFlags();
+	static void setAutoHideConfigFlags(const ads::CDockManager::AutoHideFlags Flags);
+	static void setAutoHideConfigFlag(ads::CDockManager::eAutoHideFlag Flag, bool On = true);
+	static bool testAutoHideConfigFlag(eAutoHideFlag Flag);
     static ads::CIconProvider& iconProvider();
 	ads::CDockAreaWidget* addDockWidget(ads::DockWidgetArea area, ads::CDockWidget* Dockwidget /Transfer/,
-		ads::CDockAreaWidget* DockAreaWidget /Transfer/ = 0);
+        ads::CDockAreaWidget* DockAreaWidget /Transfer/ = 0,
+		int Index = -1);
+	ads::CDockAreaWidget* addDockWidgetToContainer(ads::DockWidgetArea area, ads::CDockWidget* Dockwidget /Transfer/,
+	ads::CDockContainerWidget* DockContainerWidget /Transfer/ = 0);
+    ads::CAutoHideDockContainer* addAutoHideDockWidget(ads::SideBarLocation Location, ads::CDockWidget* Dockwidget /Transfer/);
+	ads::CAutoHideDockContainer* addAutoHideDockWidgetToContainer(SideBarLocation Location,
+		ads::CDockWidget* Dockwidget /Transfer/, ads::CDockContainerWidget* DockContainerWidget);
 	ads::CDockAreaWidget* addDockWidgetTab(ads::DockWidgetArea area,
 		ads::CDockWidget* Dockwidget /Transfer/);
 	ads::CDockAreaWidget* addDockWidgetTabToArea(ads::CDockWidget* Dockwidget /Transfer/,
-		ads::CDockAreaWidget* DockAreaWidget /Transfer/);
+        ads::CDockAreaWidget* DockAreaWidget /Transfer/,
+		int Index = -1);
     ads::CFloatingDockContainer* addDockWidgetFloating(ads::CDockWidget* DockWidget /Transfer/);
 	ads::CDockWidget* findDockWidget(const QString& ObjectName) const;
 	void removeDockWidget(ads::CDockWidget* Dockwidget) /TransferBack/;
@@ -216,12 +238,16 @@ public:
 	QMenu* viewMenu() const;
 	void setViewMenuInsertionOrder(ads::CDockManager::eViewMenuInsertionOrder Order);
 	bool isRestoringState() const;
+    bool isLeavingMinimizedState() const;
 	static int startDragDistance();
     ads::CDockWidget* focusedDockWidget() const;
     QList<int> splitterSizes(ads::CDockAreaWidget *ContainedArea) const;
     void setSplitterSizes(ads::CDockAreaWidget *ContainedArea, const QList<int>& sizes);
+    static void setFloatingContainersTitle(const QString& Title);
+	static QString floatingContainersTitle();
 
 public slots:
+    void endLeavingMinimizedState();
 	void openPerspective(const QString& PerspectiveName);
     void setDockWidgetFocused(ads::CDockWidget* DockWidget);
 

sip/DockOverlay.sip

@@ -22,8 +22,10 @@ public:
 	CDockOverlay(QWidget* parent /TransferThis/, eMode Mode = ads::CDockOverlay::ModeDockAreaOverlay);
 	virtual ~CDockOverlay();
 	void setAllowedAreas(ads::DockWidgetAreas areas);
+    void setAllowedArea(ads::DockWidgetArea area, bool Enable);
 	ads::DockWidgetAreas allowedAreas() const;
 	ads::DockWidgetArea dropAreaUnderCursor() const;
+    int tabIndexUnderCursor() const;
     ads::DockWidgetArea visibleDropAreaUnderCursor() const;
 	ads::DockWidgetArea showOverlay(QWidget* target);
 	void hideOverlay();

sip/DockWidget.sip

@@ -35,6 +35,7 @@ public:
         DockWidgetForceCloseWithArea,
         NoTab,
         DeleteContentOnClose,
+        DockWidgetPinnable,
         DefaultDockWidgetFeatures,
         AllDockWidgetFeatures,
         DockWidgetAlwaysCloseAndDelete,
@@ -59,7 +60,9 @@ public:
     enum eMinimumSizeHintMode
     {
     	MinimumSizeHintFromDockWidget,
-    	MinimumSizeHintFromContent
+    	MinimumSizeHintFromContent,
+        MinimumSizeHintFromDockWidgetMinimumSize,
+    	MinimumSizeHintFromContentMinimumSize,
     };
 
 	enum eToggleViewActionMode
@@ -81,13 +84,20 @@ public:
 	ads::CDockWidget::DockWidgetFeatures features() const;
 	ads::CDockManager* dockManager() const;
 	ads::CDockContainerWidget* dockContainer() const;
+    ads::CFloatingDockContainer* floatingDockContainer() const;
 	ads::CDockAreaWidget* dockAreaWidget() const;
+    ads::CAutoHideTab* sideTabWidget() const;
+    void setSideTabWidget(ads::CAutoHideTab* SideTab /Transfer/) const;
+    bool isAutoHide() const;
+    ads::CAutoHideDockContainer* autoHideDockContainer() const;
+    ads::SideBarLocation autoHideLocation() const;
 	bool isFloating() const;
 	bool isInFloatingContainer() const;
 	bool isClosed() const;
 	QAction* toggleViewAction() const;
 	void setToggleViewActionMode(ads::CDockWidget::eToggleViewActionMode Mode);
 	void setMinimumSizeHintMode(ads::CDockWidget::eMinimumSizeHintMode Mode);
+    ads::CDockWidget::eMinimumSizeHintMode minimumSizeHintMode() const;
     bool isCentralWidget() const;
 	void setIcon(const QIcon& Icon);
 	QIcon icon() const;
@@ -116,8 +126,11 @@ public slots:
     void setFloating();
     void deleteDockWidget();
     void closeDockWidget();
+    void requestCloseDockWidget();
     void showFullScreen();
     void showNormal();
+    void setAutoHide(bool Enable, ads::SideBarLocation Location = ads::SideBarNone, int TabIndex = -1);
+	void toggleAutoHide(ads::SideBarLocation Location = ads::SideBarNone);
 
 signals:
 	void viewToggled(bool Open);

sip/FloatingDockContainer.sip

@@ -64,6 +64,7 @@ protected:
     %If (WS_X11)
     virtual void moveEvent(QMoveEvent *event);
 	virtual void resizeEvent(QResizeEvent *event);
+    virtual bool event(QEvent *e);
     %End
     
 	%If (WS_WIN)

sip/FloatingDragPreview.sip

@@ -27,10 +27,9 @@ public:
 public: // implements IFloatingWidget
     virtual void startFloating(const QPoint& DragStartMousePos, const QSize& Size,
         ads::eDragState DragState, QWidget* MouseEventHandler);
-
     virtual void moveFloating();
-
     virtual void finishDragging();
+    void cleanupAutoHideContainerWidget(ads::DockWidgetArea ContainerDropArea);
 
 signals:
     void draggingCanceled();

sip/PushButton.sip

@@ -0,0 +1,31 @@
+%Import QtWidgets/QtWidgetsmod.sip
+
+%If (Qt_5_0_0 -)
+
+namespace ads
+{
+
+
+class CPushButton : QPushButton
+{
+    %TypeHeaderCode
+    #include <PushButton.h>
+    %End
+    
+public:
+    enum Orientation {
+        Horizontal,
+        VerticalTopToBottom,
+        VerticalBottomToTop
+    };
+    virtual QSize sizeHint() const;
+    
+    ads::CPushButton::Orientation buttonOrientation() const;
+    void setButtonOrientation(ads::CPushButton::Orientation orientation);
+
+};
+
+};
+
+%End
+

sip/ResizeHandle.sip

@@ -0,0 +1,36 @@
+%Import QtWidgets/QtWidgetsmod.sip
+
+%If (Qt_5_0_0 -)
+
+namespace ads
+{
+
+class CResizeHandle : QFrame
+{
+
+    %TypeHeaderCode
+    #include <ResizeHandle.h>
+    %End
+
+protected:
+	void mouseMoveEvent(QMouseEvent *);
+    void mousePressEvent(QMouseEvent *);
+    void mouseReleaseEvent(QMouseEvent *);
+
+public:
+	CResizeHandle(Qt::Edge HandlePosition, QWidget* parent /TransferThis/);
+	virtual ~CResizeHandle();
+	void setHandlePosition(Qt::Edge HandlePosition);
+	Qt::Edge handlePostion() const;
+	Qt::Orientation orientation() const;
+	QSize sizeHint() const;
+	bool isResizing() const;
+	void setMinResizeSize(int MinSize);
+	void setMaxResizeSize(int MaxSize);
+	void setOpaqueResize(bool opaque = true);
+	bool opaqueResize() const;
+};
+
+};
+
+%End

sip/ads.sip

@@ -1,8 +1,13 @@
 %Module(name=PyQtAds, call_super_init=True, keyword_arguments="Optional", use_limited_api=True)
+%HideNamespace(name=ads)
+
 %Import QtCore/QtCoremod.sip
 %DefaultSupertype sip.simplewrapper
 
 %Include ads_globals.sip
+%Include AutoHideDockContainer.sip
+%Include AutoHideSideBar.sip
+%Include AutoHideTab.sip
 %Include DockWidget.sip
 %Include DockAreaTabBar.sip
 %Include DockAreaTitleBar_p.sip
@@ -20,6 +25,8 @@
 %Include FloatingDockContainer.sip
 %Include FloatingDragPreview.sip
 %Include IconProvider.sip
+%Include PushButton.sip
+%Include ResizeHandle.sip
 %If (WS_X11)
     %Include linux/FloatingWidgetTitleBar.sip
 %End

sip/ads_globals.sip

@@ -50,19 +50,30 @@ namespace ads
         TopDockWidgetArea,
         BottomDockWidgetArea,
         CenterDockWidgetArea,
-
+        LeftAutoHideArea,
+        RightAutoHideArea,
+        TopAutoHideArea,
+        BottomAutoHideArea,
         InvalidDockWidgetArea,
         OuterDockAreas,
+        AutoHideDockAreas,
         AllDockAreas
     };
     typedef QFlags<ads::DockWidgetArea> DockWidgetAreas;
 
 
+    enum eTabIndex
+    {
+        TabDefaultInsertIndex,
+        TabInvalidIndex
+    };
+
     enum TitleBarButton
     {
         TitleBarButtonTabsMenu,
         TitleBarButtonUndock,
-        TitleBarButtonClose
+        TitleBarButtonClose,
+        TitleBarButtonAutoHide
     };
 
     enum eDragState
@@ -76,10 +87,10 @@ namespace ads
     enum eIcon
     {
         TabCloseIcon,
+        AutoHideIcon,
         DockAreaMenuIcon,
         DockAreaUndockIcon,
         DockAreaCloseIcon,
-
         IconCount,
     };
 
@@ -89,6 +100,15 @@ namespace ads
         BitwiseOr
     };
     
+    enum SideBarLocation
+    {
+        SideBarTop,
+        SideBarLeft,
+        SideBarRight,
+        SideBarBottom,
+        SideBarNone
+    };
+    
     namespace internal
     {    
         void replaceSplitterWidget(QSplitter* Splitter, QWidget* From, QWidget* To);
@@ -106,6 +126,9 @@ namespace ads
             int insertOffset() const;
         };
         ads::internal::CDockInsertParam dockAreaInsertParameters(ads::DockWidgetArea Area);
+        ads::SideBarLocation toSideBarLocation(ads::DockWidgetArea Area);
+        bool isHorizontalSideBarLocation(ads::SideBarLocation Location);
+        bool isSideBarArea(ads::DockWidgetArea Area);
         
         SIP_PYOBJECT findParent(SIP_PYTYPE type, const QWidget *w) const /TypeHint="QObject"/;
         %MethodCode
@@ -131,6 +154,7 @@ namespace ads
         };
         
        void repolishStyle(QWidget* w, ads::internal::eRepolishChildOptions Options = ads::internal::RepolishIgnoreChildren); 
+       QRect globalGeometry(QWidget* w);
     };
 
 };

src/AutoHideDockContainer.cpp

@@ -117,6 +117,7 @@ struct AutoHideDockContainerPrivate
 	CResizeHandle* ResizeHandle = nullptr;
 	QSize Size; // creates invalid size
 	QPointer<CAutoHideTab> SideTab;
+	QSize SizeCache;
 
 	/**
 	 * Private data constructor
@@ -187,14 +188,7 @@ AutoHideDockContainerPrivate::AutoHideDockContainerPrivate(
 //============================================================================
 CDockContainerWidget* CAutoHideDockContainer::dockContainer() const
 {
-	if (d->DockArea)
-	{
-		return d->DockArea->dockContainer();
-	}
-	else
-	{
-		return internal::findParent<CDockContainerWidget*>(this);
-	}
+	return internal::findParent<CDockContainerWidget*>(this);
 }
 
 
@@ -222,6 +216,7 @@ CAutoHideDockContainer::CAutoHideDockContainer(CDockWidget* DockWidget, SideBarL
 	bool OpaqueResize = CDockManager::testConfigFlag(CDockManager::OpaqueSplitterResize);
 	d->ResizeHandle->setOpaqueResize(OpaqueResize);
 	d->Size = d->DockArea->size();
+	d->SizeCache = DockWidget->size();
 
 	addDockWidget(DockWidget);
 	parent->registerAutoHideWidget(this);
@@ -244,7 +239,6 @@ void CAutoHideDockContainer::updateSize()
 	}
 
 	auto rect = dockContainerParent->contentRect();
-
 	switch (sideBarLocation())
 	{
 	case SideBarLocation::SideBarTop:
@@ -278,6 +272,15 @@ void CAutoHideDockContainer::updateSize()
 	default:
 		break;
 	}
+
+	if (orientation() == Qt::Horizontal)
+	{
+		d->SizeCache.setHeight(this->height());
+	}
+	else
+	{
+		d->SizeCache.setWidth(this->width());
+	}
 }
 
 //============================================================================
@@ -301,10 +304,17 @@ CAutoHideDockContainer::~CAutoHideDockContainer()
 }
 
 //============================================================================
-CAutoHideSideBar* CAutoHideDockContainer::sideBar() const
+CAutoHideSideBar* CAutoHideDockContainer::autoHideSideBar() const
 {
-	auto DockContainer = dockContainer();
-	return DockContainer ? DockContainer->sideTabBar(d->SideTabBarArea) : nullptr;
+	if (d->SideTab)
+	{
+		return d->SideTab->sideBar();
+	}
+	else
+	{
+		auto DockContainer = dockContainer();
+		return DockContainer ? DockContainer->autoHideSideBar(d->SideTabBarArea) : nullptr;
+	}
 }
 
 
@@ -344,6 +354,10 @@ void CAutoHideDockContainer::addDockWidget(CDockWidget* DockWidget)
     }
 	d->DockArea->addDockWidget(DockWidget);
 	updateSize();
+	// The dock area is not visible and will not update the size when updateSize()
+	// is called for this auto hide container. Therefore we explicitly resize
+	// it here. As soon as it will become visible, it will get the right size
+    d->DockArea->resize(size());
 }
 
 
@@ -643,5 +657,56 @@ bool CAutoHideDockContainer::event(QEvent* event)
 	return Super::event(event);
 }
 
+
+//============================================================================
+Qt::Orientation CAutoHideDockContainer::orientation() const
+{
+	return ads::internal::isHorizontalSideBarLocation(d->SideTabBarArea)
+		? Qt::Horizontal : Qt::Vertical;
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::resetToInitialDockWidgetSize()
+{
+	if (orientation() == Qt::Horizontal)
+	{
+		setSize(d->SizeCache.height());
+	}
+	else
+	{
+		setSize(d->SizeCache.width());
+	}
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::moveToNewSideBarLocation(SideBarLocation NewSideBarLocation,
+	int TabIndex)
+{
+	if (NewSideBarLocation == sideBarLocation() && TabIndex == this->tabIndex())
+	{
+		return;
+	}
+
+	auto OldOrientation = orientation();
+	auto SideBar = dockContainer()->autoHideSideBar(NewSideBarLocation);
+	SideBar->addAutoHideWidget(this, TabIndex);
+	// If we move a horizontal auto hide container to a vertical position
+	// then we resize it to the original dock widget size, to avoid
+	// an extremely stretched dock widget after insertion
+	if (SideBar->orientation() != OldOrientation)
+	{
+		resetToInitialDockWidgetSize();
+	}
+}
+
+
+//============================================================================
+int CAutoHideDockContainer::tabIndex() const
+{
+	return d->SideTab->tabIndex();
+}
+
 }
 

src/AutoHideDockContainer.h

@@ -34,7 +34,7 @@
 #include <QSplitter>
 #include "AutoHideTab.h"
 
-class QXmlStreamWriter;
+QT_FORWARD_DECLARE_CLASS(QXmlStreamWriter)
 
 namespace ads
 {
@@ -91,9 +91,9 @@ public:
 	virtual ~CAutoHideDockContainer();
 
 	/**
-	 * Get's the side tab bar
+	 * Gets the side tab bar
 	 */
-	CAutoHideSideBar* sideBar() const;
+	CAutoHideSideBar* autoHideSideBar() const;
 
 	/**
 	 * Returns the side tab
@@ -101,10 +101,15 @@ public:
 	CAutoHideTab* autoHideTab() const;
 
 	/**
-	 * Get's the dock widget in this dock container
+	 * Gets the dock widget in this dock container
 	 */
 	CDockWidget* dockWidget() const;
 
+	/**
+	 * Returns the index of this container in the sidebar
+	 */
+	int tabIndex() const;
+
 	/**
 	 * Adds a dock widget and removes the previous dock widget
 	 */
@@ -162,10 +167,34 @@ public:
 
 	/**
 	 * Use this instead of resize.
-	 * Depending on the sidebar location this will set the width or heigth
+	 * Depending on the sidebar location this will set the width or height
 	 * of this auto hide container.
 	 */
 	void setSize(int Size);
+
+	/**
+	 * Resets the width or height to the initial dock widget size dependinng on
+	 * the orientation.
+	 * If the orientation is Qt::Horizontal, then the height is reset to
+	 * the initial size and if orientation is Qt::Vertical, then the width is
+	 * reset to the initial size
+	 */
+	void resetToInitialDockWidgetSize();
+
+	/**
+	 * Returns orientation of this container.
+	 * Left and right containers have a Qt::Vertical orientation and top / bottom
+	 * containers have a Qt::Horizontal orientation.
+	 * The function returns the orientation of the corresponding auto hide
+	 * side bar.
+	 */
+	Qt::Orientation orientation() const;
+
+	/**
+	 * Removes the AutoHide container from the current side bar and adds
+	 * it to the new side bar given in SideBarLocation
+	 */
+	void moveToNewSideBarLocation(SideBarLocation SideBarLocation, int TabIndex = -1);
 };
 } // namespace ads
 

src/AutoHideSideBar.cpp

@@ -127,27 +127,6 @@ void AutoHideSideBarPrivate::handleViewportEvent(QEvent* e)
 		}
 		break;
 
-	case QEvent::Resize:
-		if (_this->tabCount())
-		{
-			auto ev = static_cast<QResizeEvent*>(e);
-			auto Tab = _this->tabAt(0);
-			int Size = isHorizontal() ? ev->size().height() : ev->size().width();
-			int TabSize = isHorizontal() ? Tab->size().height() : Tab->size().width();
-			// If the size of the side bar is less than the size of the first tab
-			// then there are no visible tabs in this side bar. This check will
-			// fail if someone will force a very big border via CSS!!
-			if (Size < TabSize)
-			{
-				_this->hide();
-			}
-		}
-		else
-		{
-			_this->hide();
-		}
-		break;
-
 	default:
 		break;
 	}
@@ -217,6 +196,7 @@ void CAutoHideSideBar::insertTab(int Index, CAutoHideTab* SideTab)
 {
     SideTab->setSideBar(this);
 	SideTab->installEventFilter(this);
+	// Default insertion is append
     if (Index < 0)
     {
     	d->TabsLayout->insertWidget(d->TabsLayout->count() - 1, SideTab);
@@ -254,12 +234,25 @@ void CAutoHideSideBar::removeAutoHideWidget(CAutoHideDockContainer* AutoHideWidg
 }
 
 //============================================================================
-void CAutoHideSideBar::addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget)
+void CAutoHideSideBar::addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget,
+	int TabIndex)
 {
 	auto SideBar = AutoHideWidget->autoHideTab()->sideBar();
 	if (SideBar == this)
 	{
-		return;
+		// If we move to the same tab index or if we insert before the next
+		// tab index, then we will end at the same tab position and can leave
+		if (AutoHideWidget->tabIndex() == TabIndex || (AutoHideWidget->tabIndex() + 1) == TabIndex)
+		{
+			return;
+		}
+
+		// We remove this auto hide widget from the sidebar in the code below
+		// and therefore need to correct the TabIndex here
+		if (AutoHideWidget->tabIndex() < TabIndex)
+		{
+			--TabIndex;
+		}
 	}
 
 	if (SideBar)
@@ -269,7 +262,7 @@ void CAutoHideSideBar::addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget)
 	AutoHideWidget->setParent(d->ContainerWidget);
 	AutoHideWidget->setSideBarLocation(d->SideTabArea);
 	d->ContainerWidget->registerAutoHideWidget(AutoHideWidget);
-	insertTab(-1, AutoHideWidget->autoHideTab());
+	insertTab(TabIndex, AutoHideWidget->autoHideTab());
 }
 
 
@@ -288,20 +281,33 @@ void CAutoHideSideBar::removeTab(CAutoHideTab* SideTab)
 //============================================================================
 bool CAutoHideSideBar::eventFilter(QObject *watched, QEvent *event)
 {
-	if (event->type() != QEvent::ShowToParent)
+	auto Tab = qobject_cast<CAutoHideTab*>(watched);
+	if (!Tab)
 	{
 		return false;
 	}
 
-	// As soon as on tab is shown, we need to show the side tab bar
-	auto Tab = qobject_cast<CAutoHideTab*>(watched);
-	if (Tab)
+	switch (event->type())
 	{
-		show();
+	case QEvent::ShowToParent:
+		 show();
+	     break;
+
+	case QEvent::HideToParent:
+		 if (!hasVisibleTabs())
+		 {
+			 hide();
+		 }
+		 break;
+
+	default:
+		break;
 	}
+
 	return false;
 }
 
+
 //============================================================================
 Qt::Orientation CAutoHideSideBar::orientation() const
 {
@@ -310,19 +316,67 @@ Qt::Orientation CAutoHideSideBar::orientation() const
 
 
 //============================================================================
-CAutoHideTab* CAutoHideSideBar::tabAt(int index) const
+CAutoHideTab* CAutoHideSideBar::tab(int index) const
 {
     return qobject_cast<CAutoHideTab*>(d->TabsLayout->itemAt(index)->widget());
 }
 
 
 //============================================================================
-int CAutoHideSideBar::tabCount() const
+int CAutoHideSideBar::count() const
 {
     return d->TabsLayout->count() - 1;
 }
 
 
+//============================================================================
+int CAutoHideSideBar::visibleTabCount() const
+{
+	int VisibleTabCount = 0;
+	auto ParentWidget = parentWidget();
+	for (auto i = 0; i < count(); i++)
+	{
+		if (tab(i)->isVisibleTo(ParentWidget))
+		{
+			VisibleTabCount++;
+		}
+	}
+
+	return VisibleTabCount;
+}
+
+
+//============================================================================
+bool CAutoHideSideBar::hasVisibleTabs() const
+{
+	auto ParentWidget = parentWidget();
+	for (auto i = 0; i < count(); i++)
+	{
+		if (tab(i)->isVisibleTo(ParentWidget))
+		{
+			return true;
+		}
+	}
+
+	return false;
+}
+
+
+//============================================================================
+int CAutoHideSideBar::indexOfTab(const CAutoHideTab& Tab) const
+{
+	for (auto i = 0; i < count(); i++)
+	{
+		if (tab(i) == &Tab)
+		{
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+
 //============================================================================
 SideBarLocation CAutoHideSideBar::sideBarLocation() const
 {
@@ -333,18 +387,18 @@ SideBarLocation CAutoHideSideBar::sideBarLocation() const
 //============================================================================
 void CAutoHideSideBar::saveState(QXmlStreamWriter& s) const
 {
-	if (!tabCount())
+	if (!count())
 	{
 		return;
 	}
 
 	s.writeStartElement("SideBar");
 	s.writeAttribute("Area", QString::number(sideBarLocation()));
-	s.writeAttribute("Tabs", QString::number(tabCount()));
+	s.writeAttribute("Tabs", QString::number(count()));
 
-	for (auto i = 0; i < tabCount(); ++i)
+	for (auto i = 0; i < count(); ++i)
 	{
-		auto Tab = tabAt(i);
+		auto Tab = tab(i);
 		if (!Tab)
 		{
 			continue;
@@ -378,11 +432,70 @@ int CAutoHideSideBar::spacing() const
 	return d->TabsLayout->spacing();
 }
 
+
 //===========================================================================
 void CAutoHideSideBar::setSpacing(int Spacing)
 {
 	d->TabsLayout->setSpacing(Spacing);
 }
 
+
+//===========================================================================
+CDockContainerWidget* CAutoHideSideBar::dockContainer() const
+{
+	return d->ContainerWidget;
+}
+
+
+//===========================================================================
+int CAutoHideSideBar::tabAt(const QPoint& Pos) const
+{
+	if (!isVisible())
+	{
+		return TabInvalidIndex;
+	}
+
+	if (orientation() == Qt::Horizontal)
+	{
+		if (Pos.x() < tab(0)->geometry().x())
+		{
+			return -1;
+		}
+	}
+	else
+	{
+		if (Pos.y() < tab(0)->geometry().y())
+		{
+			return -1;
+		}
+	}
+
+
+	for (int i = 0; i < count(); ++i)
+	{
+		if (tab(i)->geometry().contains(Pos))
+		{
+			return i;
+		}
+	}
+
+	return count();
+}
+
+
+//===========================================================================
+int CAutoHideSideBar::tabInsertIndexAt(const QPoint& Pos) const
+{
+	int Index = tabAt(Pos);
+	if (Index == TabInvalidIndex)
+	{
+		return TabDefaultInsertIndex;
+	}
+	else
+	{
+		return (Index < 0) ? 0 : Index;
+	}
+}
+
 } // namespace ads
 

src/AutoHideSideBar.h

@@ -33,7 +33,7 @@
 #include "ads_globals.h"
 #include "AutoHideTab.h"
 
-class QXmlStreamWriter;
+QT_FORWARD_DECLARE_CLASS(QXmlStreamWriter)
 
 namespace ads
 {
@@ -117,7 +117,7 @@ public:
 	 * If the AutoHideWidget is in another sidebar, then it will be removed
 	 * from this sidebar.
 	 */
-	void addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget);
+	void addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget, int Index = TabDefaultInsertIndex);
 
 	/**
 	 * Returns orientation of side tab.
@@ -125,14 +125,45 @@ public:
 	Qt::Orientation orientation() const;
 
 	/*
-	 * get the side tab widget at position, returns nullptr if it's out of bounds
+	 * Get the side tab widget at position, returns nullptr if it's out of bounds
 	 */
-	CAutoHideTab* tabAt(int index) const;
+	CAutoHideTab* tab(int index) const;
+
+	/**
+	 * Returns the tab at the given position.
+	 * Returns -1 if the position is left of the first tab and count() if the
+	 * position is right of the last tab. Returns InvalidTabIndex (-2) to
+	 * indicate an invalid value.
+	 */
+	int tabAt(const QPoint& Pos) const;
+
+	/**
+	 * Returns the tab insertion index for the given mouse cursor position
+	 */
+	int tabInsertIndexAt(const QPoint& Pos) const;
+
+	/**
+	 * Returns the index of the given tab
+	 */
+	int indexOfTab(const CAutoHideTab& Tab) const;
 
 	/*
 	 * Gets the count of the tab widgets
 	 */
-	int tabCount() const;
+	int count() const;
+
+	/**
+	 * Returns the number of visible tabs to its parent widget.
+	 */
+	int visibleTabCount() const;
+
+	/**
+	 * Returns true, if the sidebar contains visible tabs to its parent widget.
+	 * The function returns as soon as it finds the first visible tab.
+	 * That means, if you just want to find out if there are visible tabs
+	 * then this function is quicker than visibleTabCount()
+	 */
+	bool hasVisibleTabs() const;
 
 	/**
 	 * Getter for side tab bar area property
@@ -142,7 +173,7 @@ public:
 	/**
 	 * Overrides the minimumSizeHint() function of QScrollArea
 	 * The minimumSizeHint() is bigger than the sizeHint () for the scroll
-	 * area because even if the scrollbars are invisible, the required speace
+	 * area because even if the scrollbars are invisible, the required space
 	 * is reserved in the minimumSizeHint(). This override simply returns
 	 * sizeHint();
 	 */
@@ -163,6 +194,11 @@ public:
 	 * Setter for spacing property - sets the spacing
 	 */
 	void setSpacing(int Spacing);
+
+	/**
+	 * Returns the dock container that hosts this sideBar()
+	 */
+	CDockContainerWidget* dockContainer() const;
 };
 } // namespace ads
 //-----------------------------------------------------------------------------

src/AutoHideTab.cpp

@@ -32,15 +32,19 @@
 #include <QBoxLayout>
 #include <QApplication>
 #include <QElapsedTimer>
+#include <QMenu>
 
 #include "AutoHideDockContainer.h"
 #include "AutoHideSideBar.h"
 #include "DockAreaWidget.h"
 #include "DockManager.h"
 #include "DockWidget.h"
+#include "FloatingDragPreview.h"
+#include "DockOverlay.h"
 
 namespace ads
 {
+
 /**
  * Private data class of CDockWidgetTab class (pimpl)
  */
@@ -51,6 +55,12 @@ struct AutoHideTabPrivate
     CAutoHideSideBar* SideBar = nullptr;
 	Qt::Orientation Orientation{Qt::Vertical};
 	QElapsedTimer TimeSinceHoverMousePress;
+	bool MousePressed = false;
+	eDragState DragState = DraggingInactive;
+	QPoint GlobalDragStartMousePosition;
+	QPoint DragStartMousePosition;
+	IFloatingWidget* FloatingWidget = nullptr;
+	Qt::Orientation DragStartOrientation;
 
 	/**
 	 * Private data constructor
@@ -82,6 +92,55 @@ struct AutoHideTabPrivate
 			DockContainer->handleAutoHideWidgetEvent(event, _this);
 		}
 	}
+
+	/**
+	 * Helper function to create and initialize the menu entries for
+	 * the "Auto Hide Group To..." menu
+	 */
+	QAction* createAutoHideToAction(const QString& Title, SideBarLocation Location,
+		QMenu* Menu)
+	{
+		auto Action = Menu->addAction(Title);
+		Action->setProperty(internal::LocationProperty, Location);
+		QObject::connect(Action, &QAction::triggered, _this, &CAutoHideTab::onAutoHideToActionClicked);
+		Action->setEnabled(Location != _this->sideBarLocation());
+		return Action;
+	}
+
+	/**
+	 * Test function for current drag state
+	 */
+	bool isDraggingState(eDragState dragState) const
+	{
+		return this->DragState == dragState;
+	}
+
+	/**
+	 * Saves the drag start position in global and local coordinates
+	 */
+	void saveDragStartMousePosition(const QPoint& GlobalPos)
+	{
+		GlobalDragStartMousePosition = GlobalPos;
+		DragStartMousePosition = _this->mapFromGlobal(GlobalPos);
+	}
+
+	/**
+	 * Starts floating of the dock widget that belongs to this title bar
+	 * Returns true, if floating has been started and false if floating
+	 * is not possible for any reason
+	 */
+	bool startFloating(eDragState DraggingState = DraggingFloatingWidget);
+
+	template <typename T>
+	IFloatingWidget* createFloatingWidget(T* Widget)
+	{
+		auto w = new CFloatingDragPreview(Widget);
+		_this->connect(w, &CFloatingDragPreview::draggingCanceled, [=]()
+		{
+			DragState = DraggingInactive;
+		});
+		return w;
+	}
 }; // struct DockWidgetTabPrivate
 
 
@@ -110,6 +169,53 @@ void AutoHideTabPrivate::updateOrientation()
 }
 
 
+//============================================================================
+bool AutoHideTabPrivate::startFloating(eDragState DraggingState)
+{
+	auto DockArea = DockWidget->dockAreaWidget();
+    ADS_PRINT("isFloating " << dockContainer()->isFloating());
+
+    ADS_PRINT("startFloating");
+	DragState = DraggingState;
+	IFloatingWidget* FloatingWidget = nullptr;
+	FloatingWidget = createFloatingWidget(DockArea);
+	auto Size = DockArea->size();
+	auto StartPos = DragStartMousePosition;
+	auto AutoHideContainer = DockWidget->autoHideDockContainer();
+	DragStartOrientation = AutoHideContainer->orientation();
+	switch (SideBar->sideBarLocation())
+	{
+	case SideBarLeft:
+		 StartPos.rx() = AutoHideContainer->rect().left() + 10;
+		 break;
+
+	case SideBarRight:
+		 StartPos.rx() = AutoHideContainer->rect().right() - 10;
+		 break;
+
+	case SideBarTop:
+		 StartPos.ry() = AutoHideContainer->rect().top() + 10;
+		 break;
+
+	case SideBarBottom:
+		 StartPos.ry() = AutoHideContainer->rect().bottom() - 10;
+		 break;
+
+	case SideBarNone:
+		 return false;
+	}
+	FloatingWidget->startFloating(StartPos, Size, DraggingFloatingWidget, _this);
+	auto DockManager = DockWidget->dockManager();
+	auto Overlay = DockManager->containerOverlay();
+	Overlay->setAllowedAreas(OuterDockAreas);
+	this->FloatingWidget = FloatingWidget;
+	qApp->postEvent(DockWidget, new QEvent((QEvent::Type)internal::DockedWidgetDragStartEvent));
+
+	return true;
+}
+
+
+
 //============================================================================
 void CAutoHideTab::setSideBar(CAutoHideSideBar* SideTabBar)
 {
@@ -250,32 +356,205 @@ bool CAutoHideTab::event(QEvent* event)
 		 d->forwardEventToDockContainer(event);
 		 break;
 
-	case QEvent::MouseButtonPress:
-		 // If AutoHideShowOnMouseOver is active, then the showing is triggered
-		 // by a MousePressEvent sent to this tab. To prevent accidental hiding
-		 // of the tab by a mouse click, we wait at least 500 ms before we accept
-		 // the mouse click
-		 if (!event->spontaneous())
-		 {
-			 d->TimeSinceHoverMousePress.restart();
-			 d->forwardEventToDockContainer(event);
-		 }
-		 else if (d->TimeSinceHoverMousePress.hasExpired(500))
-		 {
-			 d->forwardEventToDockContainer(event);
-		 }
-		 break;
-
 	default:
 		break;
 	}
 	return Super::event(event);
 }
 
+
 //============================================================================
 bool CAutoHideTab::iconOnly() const
 {
 	return CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideSideBarsIconOnly) && !icon().isNull();
 }
 
+
+//============================================================================
+void CAutoHideTab::contextMenuEvent(QContextMenuEvent* ev)
+{
+	ev->accept();
+	d->saveDragStartMousePosition(ev->globalPos());
+
+    const bool isFloatable = d->DockWidget->features().testFlag(CDockWidget::DockWidgetFloatable);
+	QAction* Action;
+	QMenu Menu(this);
+
+	Action = Menu.addAction(tr("Detach"), this, SLOT(setDockWidgetFloating()));
+	Action->setEnabled(isFloatable);
+	auto IsPinnable = d->DockWidget->features().testFlag(CDockWidget::DockWidgetPinnable);
+	Action->setEnabled(IsPinnable);
+
+	auto menu = Menu.addMenu(tr("Pin To..."));
+	menu->setEnabled(IsPinnable);
+	d->createAutoHideToAction(tr("Top"), SideBarTop, menu);
+	d->createAutoHideToAction(tr("Left"), SideBarLeft, menu);
+	d->createAutoHideToAction(tr("Right"), SideBarRight, menu);
+	d->createAutoHideToAction(tr("Bottom"), SideBarBottom, menu);
+
+	Action = Menu.addAction(tr("Unpin (Dock)"), this, SLOT(unpinDockWidget()));
+	Menu.addSeparator();
+	Action = Menu.addAction(tr("Close"), this, SLOT(requestCloseDockWidget()));
+	Action->setEnabled(d->DockWidget->features().testFlag(CDockWidget::DockWidgetClosable));
+
+	Menu.exec(ev->globalPos());
+}
+
+
+//============================================================================
+void CAutoHideTab::setDockWidgetFloating()
+{
+	d->DockWidget->setFloating();
+}
+
+
+//============================================================================
+void CAutoHideTab::unpinDockWidget()
+{
+	d->DockWidget->setAutoHide(false);
+}
+
+
+//===========================================================================
+void CAutoHideTab::onAutoHideToActionClicked()
+{
+	int Location = sender()->property(internal::LocationProperty).toInt();
+	d->DockWidget->setAutoHide(true, (SideBarLocation)Location);
+}
+
+
+//============================================================================
+void CAutoHideTab::mousePressEvent(QMouseEvent* ev)
+{
+	 // If AutoHideShowOnMouseOver is active, then the showing is triggered
+	 // by a MousePressEvent sent to this tab. To prevent accidental hiding
+	 // of the tab by a mouse click, we wait at least 500 ms before we accept
+	 // the mouse click
+	 if (!ev->spontaneous())
+	 {
+		 d->TimeSinceHoverMousePress.restart();
+		 d->forwardEventToDockContainer(ev);
+	 }
+	 else if (d->TimeSinceHoverMousePress.hasExpired(500))
+	 {
+		 d->forwardEventToDockContainer(ev);
+	 }
+
+	if (ev->button() == Qt::LeftButton)
+	{
+		ev->accept();
+		d->MousePressed = true;
+        d->saveDragStartMousePosition(internal::globalPositionOf(ev));
+        d->DragState = DraggingMousePressed;
+	}
+	Super::mousePressEvent(ev);
+}
+
+
+
+//============================================================================
+void CAutoHideTab::mouseReleaseEvent(QMouseEvent* ev)
+{
+	if (ev->button() == Qt::LeftButton)
+	{
+		d->MousePressed = false;
+		auto CurrentDragState = d->DragState;
+		d->GlobalDragStartMousePosition = QPoint();
+		d->DragStartMousePosition = QPoint();
+		d->DragState = DraggingInactive;
+
+		switch (CurrentDragState)
+		{
+		case DraggingTab:
+			// End of tab moving, emit signal
+			/*if (d->DockArea)
+			{
+				ev->accept();
+                Q_EMIT moved(internal::globalPositionOf(ev));
+			}*/
+			break;
+
+		case DraggingFloatingWidget:
+			 ev->accept();
+			 d->FloatingWidget->finishDragging();
+			 if (d->DockWidget->autoHideDockContainer() && d->DragStartOrientation != orientation())
+			 {
+				 d->DockWidget->autoHideDockContainer()->resetToInitialDockWidgetSize();
+			 }
+			 break;
+
+		default:
+			break; // do nothing
+		}
+	}
+
+	Super::mouseReleaseEvent(ev);
+}
+
+
+//============================================================================
+void CAutoHideTab::mouseMoveEvent(QMouseEvent* ev)
+{
+    if (!(ev->buttons() & Qt::LeftButton) || d->isDraggingState(DraggingInactive))
+    {
+    	d->DragState = DraggingInactive;
+        Super::mouseMoveEvent(ev);
+        return;
+    }
+
+    // move floating window
+    if (d->isDraggingState(DraggingFloatingWidget))
+    {
+        d->FloatingWidget->moveFloating();
+        Super::mouseMoveEvent(ev);
+        return;
+    }
+
+    // move tab
+    if (d->isDraggingState(DraggingTab))
+    {
+        // Moving the tab is always allowed because it does not mean moving the
+    	// dock widget around
+    	//d->moveTab(ev);
+    }
+
+    auto MappedPos = mapToParent(ev->pos());
+    bool MouseOutsideBar = (MappedPos.x() < 0) || (MappedPos.x() > parentWidget()->rect().right());
+    // Maybe a fixed drag distance is better here ?
+    int DragDistanceY = qAbs(d->GlobalDragStartMousePosition.y() - internal::globalPositionOf(ev).y());
+    if (DragDistanceY >= CDockManager::startDragDistance() || MouseOutsideBar)
+	{
+    	// Floating is only allowed for widgets that are floatable
+		// We can create the drag preview if the widget is movable.
+		auto Features = d->DockWidget->features();
+        if (Features.testFlag(CDockWidget::DockWidgetFloatable) || (Features.testFlag(CDockWidget::DockWidgetMovable)))
+        {
+            d->startFloating();
+        }
+    	return;
+	}
+
+    Super::mouseMoveEvent(ev);
+}
+
+
+//============================================================================
+void CAutoHideTab::requestCloseDockWidget()
+{
+	d->DockWidget->requestCloseDockWidget();
+}
+
+
+//============================================================================
+int CAutoHideTab::tabIndex() const
+{
+	if (!d->SideBar)
+	{
+		return -1;
+	}
+
+	return d->SideBar->indexOfTab(*this);
+}
+
+
 }

src/AutoHideTab.h

@@ -65,11 +65,17 @@ private:
 	friend class CDockContainerWidget;
 	friend DockContainerWidgetPrivate;
 
+private Q_SLOTS:
+	void onAutoHideToActionClicked();
 
 protected:
 	void setSideBar(CAutoHideSideBar *SideTabBar);
 	void removeFromSideBar();
 	virtual bool event(QEvent* event) override;
+	virtual void contextMenuEvent(QContextMenuEvent* ev) override;
+	virtual void mousePressEvent(QMouseEvent* ev) override;
+	virtual void mouseReleaseEvent(QMouseEvent* ev) override;
+	virtual void mouseMoveEvent(QMouseEvent* ev) override;
 
 public:
     using Super = CPushButton;
@@ -133,6 +139,27 @@ public:
 	 * not in a side bar
 	 */
 	CAutoHideSideBar* sideBar() const;
+
+	/**
+	 * Returns the index of this tab in the sideBar
+	 */
+	int tabIndex() const;
+
+public Q_SLOTS:
+	/**
+	 * Set the dock widget floating, if it is floatable
+	 */
+	void setDockWidgetFloating();
+
+	/**
+	 * Unpin and dock the auto hide widget
+	 */
+	void unpinDockWidget();
+
+	/**
+	 * Calls the requestCloseDockWidget() function for the assigned dock widget
+	 */
+	void requestCloseDockWidget();
 }; // class AutoHideTab
 }
  // namespace ads

src/CMakeLists.txt

@@ -1,6 +1,11 @@
 cmake_minimum_required(VERSION 3.5)
 project(QtAdvancedDockingSystem LANGUAGES CXX VERSION ${VERSION_SHORT})
-find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
+if (${QT_VERSION_MAJOR})
+  message(STATUS "Forced to use Qt version ${QT_VERSION_MAJOR}")
+  find_package(QT NAMES Qt${QT_VERSION_MAJOR} COMPONENTS Core REQUIRED)
+else()
+  find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
+endif()
 find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core Gui Widgets REQUIRED)
 if (UNIX AND NOT APPLE)
     include_directories(${Qt${QT_VERSION_MAJOR}Gui_PRIVATE_INCLUDE_DIRS})
@@ -31,7 +36,7 @@ set(ads_SRCS
     AutoHideTab.cpp
     AutoHideDockContainer.cpp
     PushButton.cpp
-	ResizeHandle.cpp
+    ResizeHandle.cpp
     ads.qrc
 )
 set(ads_HEADERS
@@ -57,57 +62,65 @@ set(ads_HEADERS
     AutoHideTab.h
     AutoHideDockContainer.h
     PushButton.h
-	ResizeHandle.h
+    ResizeHandle.h
 )
 add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")
 if (UNIX AND NOT APPLE)
     set(ads_SRCS linux/FloatingWidgetTitleBar.cpp ${ads_SRCS})
     set(ads_HEADERS linux/FloatingWidgetTitleBar.h ${ads_HEADERS})
 endif()
+
+set(library_name "qt${QT_VERSION_MAJOR}advanceddocking")
 if(BUILD_STATIC)
-    add_library(qtadvanceddocking STATIC ${ads_SRCS} ${ads_HEADERS})
-    target_compile_definitions(qtadvanceddocking PUBLIC ADS_STATIC)
+    add_library(${library_name} STATIC ${ads_SRCS} ${ads_HEADERS})
+    target_compile_definitions( ${library_name} PUBLIC ADS_STATIC)
 else()
-    add_library(qtadvanceddocking SHARED ${ads_SRCS} ${ads_HEADERS})
-    target_compile_definitions(qtadvanceddocking PRIVATE ADS_SHARED_EXPORT)
+    add_library( ${library_name} SHARED ${ads_SRCS} ${ads_HEADERS})
+    target_compile_definitions( ${library_name} PRIVATE ADS_SHARED_EXPORT)
 endif()
 
-add_library(ads::qtadvanceddocking ALIAS qtadvanceddocking)
+add_library(ads::${library_name} ALIAS ${library_name})
 
-target_link_libraries(qtadvanceddocking PUBLIC Qt${QT_VERSION_MAJOR}::Core 
+target_link_libraries(${library_name} PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                Qt${QT_VERSION_MAJOR}::Gui 
                                                Qt${QT_VERSION_MAJOR}::Widgets)
 if (UNIX AND NOT APPLE)
-  target_link_libraries(qtadvanceddocking PUBLIC xcb)
+  if (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+      find_package(X11 REQUIRED)
+      target_link_libraries(${library_name} PUBLIC X11::xcb)
+  else()
+    target_link_libraries(${library_name} PUBLIC xcb)
+  endif()
 endif()
-set_target_properties(qtadvanceddocking PROPERTIES
+set_target_properties(${library_name} PROPERTIES
     AUTOMOC ON
     AUTORCC ON
     CXX_EXTENSIONS OFF
     VERSION ${VERSION_SHORT}
-    EXPORT_NAME "qtadvanceddocking"
+    EXPORT_NAME ${library_name}
+    DEBUG_POSTFIX "d"
     ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
     LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/bin"
 )
 if(QT_VERSION_MAJOR STREQUAL "5")
-    set_target_properties(qtadvanceddocking PROPERTIES
+    set_target_properties(${library_name} PROPERTIES
         CXX_STANDARD 14
         CXX_STANDARD_REQUIRED ON)
 elseif(QT_VERSION_MAJOR STREQUAL "6")
-    set_target_properties(qtadvanceddocking PROPERTIES
+    set_target_properties(${library_name} PROPERTIES
         CXX_STANDARD 17
         CXX_STANDARD_REQUIRED ON)
 endif()
 
 include(CMakePackageConfigHelpers)
 write_basic_package_version_file(
-    "qtadvanceddockingConfigVersion.cmake"
+    "${library_name}ConfigVersion.cmake"
     VERSION ${VERSION_SHORT}
     COMPATIBILITY SameMajorVersion
 )
 install(FILES ${ads_HEADERS}
-    DESTINATION include
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${library_name}
     COMPONENT headers
 )
 install(FILES
@@ -116,24 +129,27 @@ install(FILES
     DESTINATION license/ads
     COMPONENT license
 )
-install(TARGETS qtadvanceddocking
+install(TARGETS ${library_name}
     EXPORT adsTargets
-    RUNTIME DESTINATION bin
-    LIBRARY DESTINATION lib
-    ARCHIVE DESTINATION lib
-    INCLUDES DESTINATION include
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${library_name}
 )
 
 install(EXPORT adsTargets
     FILE adsTargets.cmake
     NAMESPACE ads::
-    DESTINATION lib/cmake/qtadvanceddocking
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${library_name}
 )
-install(FILES qtadvanceddockingConfig.cmake "${CMAKE_CURRENT_BINARY_DIR}/qtadvanceddockingConfigVersion.cmake"
-    DESTINATION lib/cmake/qtadvanceddocking
+install(FILES qtadvanceddockingConfig.cmake RENAME ${library_name}Config.cmake
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${library_name}
+)
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${library_name}ConfigVersion.cmake"
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${library_name}
 )
 
-target_include_directories(qtadvanceddocking PUBLIC
-    $<INSTALL_INTERFACE:include>
+target_include_directories(${library_name} PUBLIC
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
 )

src/DockAreaTabBar.cpp

@@ -36,6 +36,7 @@
 #include <QBoxLayout>
 #include <QApplication>
 #include <QtGlobal>
+#include <QTimer>
 
 #include "FloatingDockContainer.h"
 #include "DockAreaWidget.h"
@@ -107,7 +108,13 @@ void DockAreaTabBarPrivate::updateTabs()
 		{
 			TabWidget->show();
 			TabWidget->setActiveTab(true);
-			_this->ensureWidgetVisible(TabWidget);
+			// Sometimes the synchronous calculation of the rectangular area fails
+			// Therefore we use QTimer::singleShot here to execute the call
+			// within the event loop - see #520
+			QTimer::singleShot(0, TabWidget, [&, TabWidget]
+			{
+				_this->ensureWidgetVisible(TabWidget);
+			});
 		}
 		else
 		{
@@ -294,7 +301,7 @@ int CDockAreaTabBar::currentIndex() const
 //===========================================================================
 CDockWidgetTab* CDockAreaTabBar::currentTab() const
 {
-	if (d->CurrentIndex < 0)
+	if (d->CurrentIndex < 0 || d->CurrentIndex >= d->TabsLayout->count())
 	{
 		return nullptr;
 	}
@@ -498,6 +505,46 @@ QSize CDockAreaTabBar::sizeHint() const
 	return d->TabsContainerWidget->sizeHint();
 }
 
+
+//===========================================================================
+int CDockAreaTabBar::tabAt(const QPoint& Pos) const
+{
+	if (!isVisible())
+	{
+		return TabInvalidIndex;
+	}
+
+	if (Pos.x() < tab(0)->geometry().x())
+	{
+		return -1;
+	}
+
+	for (int i = 0; i < count(); ++i)
+	{
+		if (tab(i)->geometry().contains(Pos))
+		{
+			return i;
+		}
+	}
+
+	return count();
+}
+
+
+//===========================================================================
+int CDockAreaTabBar::tabInsertIndexAt(const QPoint& Pos) const
+{
+	int Index = tabAt(Pos);
+	if (Index == TabInvalidIndex)
+	{
+		return TabDefaultInsertIndex;
+	}
+	else
+	{
+		return (Index < 0) ? 0 : Index;
+	}
+}
+
 } // namespace ads
 
 

src/DockAreaTabBar.h

@@ -113,6 +113,19 @@ public:
 	 */
 	CDockWidgetTab* tab(int Index) const;
 
+	/**
+	 * Returns the tab at the given position.
+	 * Returns -1 if the position is left of the first tab and count() if the
+	 * position is right of the last tab. Returns -2 to indicate an invalid
+	 * value.
+	 */
+	int tabAt(const QPoint& Pos) const;
+
+	/**
+	 * Returns the tab insertion index for the given mouse cursor position
+	 */
+	int tabInsertIndexAt(const QPoint& Pos) const;
+
 	/**
 	 * Filters the tab widget events
 	 */
@@ -128,7 +141,7 @@ public:
 	/**
 	 * Overrides the minimumSizeHint() function of QScrollArea
 	 * The minimumSizeHint() is bigger than the sizeHint () for the scroll
-	 * area because even if the scrollbars are invisible, the required speace
+	 * area because even if the scrollbars are invisible, the required space
 	 * is reserved in the minimumSizeHint(). This override simply returns
 	 * sizeHint();
 	 */

src/DockAreaTitleBar.cpp

@@ -60,7 +60,6 @@
 
 namespace ads
 {
-static const char* const LocationProperty = "Location";
 
 /**
  * Private data class of CDockAreaTitleBar class (pimpl)
@@ -68,14 +67,15 @@ static const char* const LocationProperty = "Location";
 struct DockAreaTitleBarPrivate
 {
 	CDockAreaTitleBar* _this;
-	QPointer<tTitleBarButton> TabsMenuButton;
-	QPointer<tTitleBarButton> AutoHideButton;
-	QPointer<tTitleBarButton> UndockButton;
-	QPointer<tTitleBarButton> CloseButton;
+	QPointer<CTitleBarButton> TabsMenuButton;
+	QPointer<CTitleBarButton> AutoHideButton;
+	QPointer<CTitleBarButton> UndockButton;
+	QPointer<CTitleBarButton> CloseButton;
+	QPointer<CTitleBarButton> MinimizeButton;
 	QBoxLayout* Layout;
 	CDockAreaWidget* DockArea;
 	CDockAreaTabBar* TabBar;
-	CElidingLabel* AutoHideTitleLabel;
+	CElidingLabel* AutoHideTitleLabel = nullptr;
 	bool MenuOutdated = true;
 	QMenu* TabsMenu;
 	QList<tTitleBarButton*> DockWidgetActionsButtons;
@@ -158,7 +158,7 @@ struct DockAreaTitleBarPrivate
 		QMenu* Menu)
 	{
 		auto Action = Menu->addAction(Title);
-		Action->setProperty("Location", Location);
+		Action->setProperty(internal::LocationProperty, Location);
 		QObject::connect(Action, &QAction::triggered, _this, &CDockAreaTitleBar::onAutoHideToActionClicked);
 		return Action;
 	}
@@ -178,7 +178,8 @@ void DockAreaTitleBarPrivate::createButtons()
 	QSizePolicy ButtonSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
 
 	// Tabs menu button
-	TabsMenuButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasTabsMenuButton));
+	TabsMenuButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasTabsMenuButton),
+		false, TitleBarButtonTabsMenu);
 	TabsMenuButton->setObjectName("tabsMenuButton");
 	TabsMenuButton->setAutoRaise(true);
 	TabsMenuButton->setPopupMode(QToolButton::InstantPopup);
@@ -196,7 +197,8 @@ void DockAreaTitleBarPrivate::createButtons()
 		SLOT(onTabsMenuActionTriggered(QAction*)));
 
 	// Undock button
-	UndockButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasUndockButton));
+	UndockButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasUndockButton),
+		true, TitleBarButtonUndock);
 	UndockButton->setObjectName("detachGroupButton");
 	UndockButton->setAutoRaise(true);
 	internal::setToolTip(UndockButton, QObject::tr("Detach Group"));
@@ -207,7 +209,8 @@ void DockAreaTitleBarPrivate::createButtons()
 
 	// AutoHide Button
 	const auto autoHideEnabled = testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled);
-	AutoHideButton = new CTitleBarButton(testAutoHideConfigFlag(CDockManager::DockAreaHasAutoHideButton) && autoHideEnabled);
+	AutoHideButton = new CTitleBarButton(testAutoHideConfigFlag(CDockManager::DockAreaHasAutoHideButton) && autoHideEnabled,
+		true, TitleBarButtonAutoHide);
 	AutoHideButton->setObjectName("dockAreaAutoHideButton");
 	AutoHideButton->setAutoRaise(true);
 	internal::setToolTip(AutoHideButton, _this->titleBarButtonToolTip(TitleBarButtonAutoHide));
@@ -218,8 +221,21 @@ void DockAreaTitleBarPrivate::createButtons()
 	Layout->addWidget(AutoHideButton, 0);
 	_this->connect(AutoHideButton, SIGNAL(clicked()),  SLOT(onAutoHideButtonClicked()));
 
+	// Minimize button
+	MinimizeButton = new CTitleBarButton(testAutoHideConfigFlag(CDockManager::AutoHideHasMinimizeButton),
+		false, TitleBarButtonMinimize);
+	MinimizeButton->setObjectName("dockAreaMinimizeButton");
+	MinimizeButton->setAutoRaise(true);
+	MinimizeButton->setVisible(false);
+	internal::setButtonIcon(MinimizeButton, QStyle::SP_TitleBarMinButton, ads::DockAreaMinimizeIcon);
+	internal::setToolTip(MinimizeButton, QObject::tr("Minimize"));
+	MinimizeButton->setSizePolicy(ButtonSizePolicy);
+	Layout->addWidget(MinimizeButton, 0);
+	_this->connect(MinimizeButton, SIGNAL(clicked()), SLOT(minimizeAutoHideContainer()));
+
 	// Close button
-	CloseButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasCloseButton));
+	CloseButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasCloseButton),
+		true, TitleBarButtonClose);
 	CloseButton->setObjectName("dockAreaCloseButton");
 	CloseButton->setAutoRaise(true);
 	internal::setButtonIcon(CloseButton, QStyle::SP_TitleBarCloseButton, ads::DockAreaCloseIcon);
@@ -236,7 +252,10 @@ void DockAreaTitleBarPrivate::createAutoHideTitleLabel()
 {
 	AutoHideTitleLabel = new CElidingLabel("");
 	AutoHideTitleLabel->setObjectName("autoHideTitleLabel");
-	Layout->addWidget(AutoHideTitleLabel);
+	// At position 0 is the tab bar - insert behind tab bar
+	Layout->insertWidget(1, AutoHideTitleLabel);
+	AutoHideTitleLabel->setVisible(false); // Default hidden
+	Layout->insertWidget(2 ,new CSpacerWidget(_this));
 }
 
 
@@ -262,12 +281,15 @@ IFloatingWidget* DockAreaTitleBarPrivate::makeAreaFloating(const QPoint& Offset,
 {
 	QSize Size = DockArea->size();
 	this->DragState = DragState;
-	bool OpaqueUndocking = CDockManager::testConfigFlag(CDockManager::OpaqueUndocking) ||
-		(DraggingFloatingWidget != DragState);
+	bool CreateFloatingDockContainer = (DraggingFloatingWidget != DragState);
 	CFloatingDockContainer* FloatingDockContainer = nullptr;
 	IFloatingWidget* FloatingWidget;
-	if (OpaqueUndocking)
+	if (CreateFloatingDockContainer)
 	{
+		if (DockArea->autoHideDockContainer())
+        {
+            DockArea->autoHideDockContainer()->cleanupAndDelete();
+        }
 		FloatingWidget = FloatingDockContainer = new CFloatingDockContainer(DockArea);
 	}
 	else
@@ -297,7 +319,7 @@ IFloatingWidget* DockAreaTitleBarPrivate::makeAreaFloating(const QPoint& Offset,
 //============================================================================
 void DockAreaTitleBarPrivate::startFloating(const QPoint& Offset)
 {
-	if (DockArea->autoHideDockContainer() != nullptr)
+	if (DockArea->autoHideDockContainer())
 	{
 		DockArea->autoHideDockContainer()->hide();
 	}
@@ -321,10 +343,8 @@ CDockAreaTitleBar::CDockAreaTitleBar(CDockAreaWidget* parent) :
 	setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 
 	d->createTabBar();
-	d->createAutoHideTitleLabel();
-	d->AutoHideTitleLabel->setVisible(false); // Default hidden
-	d->Layout->addWidget(new CSpacerWidget(this));
 	d->createButtons();
+	d->createAutoHideTitleLabel();
 
     setFocusPolicy(Qt::NoFocus);
 }
@@ -412,7 +432,12 @@ void CDockAreaTitleBar::onTabsMenuAboutToShow()
 void CDockAreaTitleBar::onCloseButtonClicked()
 {
     ADS_PRINT("CDockAreaTitleBar::onCloseButtonClicked");
-	if (d->testConfigFlag(CDockManager::DockAreaCloseButtonClosesTab))
+	if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideCloseButtonCollapsesDock) &&
+		d->DockArea->autoHideDockContainer())
+	{
+		d->DockArea->autoHideDockContainer()->collapseView(true);
+	}
+	else if (d->testConfigFlag(CDockManager::DockAreaCloseButtonClosesTab))
 	{
 		d->TabBar->closeTab(d->TabBar->currentIndex());
 	}
@@ -423,16 +448,29 @@ void CDockAreaTitleBar::onCloseButtonClicked()
 }
 
 
+//============================================================================
+void CDockAreaTitleBar::onAutoHideCloseActionTriggered()
+{
+	d->DockArea->closeArea();
+}
+
+
+//============================================================================
+void CDockAreaTitleBar::minimizeAutoHideContainer()
+{
+	auto AutoHideContainer = d->DockArea->autoHideDockContainer();
+	if (AutoHideContainer)
+	{
+		AutoHideContainer->collapseView(true);
+	}
+}
+
+
 //============================================================================
 void CDockAreaTitleBar::onUndockButtonClicked()
 {
 	if (d->DockArea->features().testFlag(CDockWidget::DockWidgetFloatable))
 	{
-        if (d->DockArea->autoHideDockContainer())
-        {
-            d->DockArea->autoHideDockContainer()->cleanupAndDelete();
-        }
-
 		d->makeAreaFloating(mapFromGlobal(QCursor::pos()), DraggingInactive);
 	}
 }
@@ -476,7 +514,7 @@ void CDockAreaTitleBar::updateDockWidgetActionsButtons()
 	int InsertIndex = indexOf(d->TabsMenuButton);
 	for (auto Action : Actions)
 	{
-		auto Button = new CTitleBarButton(true, this);
+		auto Button = new CTitleBarButton(true, false, TitleBarButtonTabsMenu, this);
 		Button->setDefaultAction(Action);
 		Button->setAutoRaise(true);
 		Button->setPopupMode(QToolButton::InstantPopup);
@@ -530,13 +568,13 @@ void CDockAreaTitleBar::onAutoHideDockAreaActionClicked()
 //============================================================================
 void CDockAreaTitleBar::onAutoHideToActionClicked()
 {
-	int Location = sender()->property(LocationProperty).toInt();
+	int Location = sender()->property(internal::LocationProperty).toInt();
 	d->DockArea->toggleAutoHide((SideBarLocation)Location);
 }
 
 
 //============================================================================
-QAbstractButton* CDockAreaTitleBar::button(TitleBarButton which) const
+CTitleBarButton* CDockAreaTitleBar::button(TitleBarButton which) const
 {
 	switch (which)
 	{
@@ -544,6 +582,7 @@ QAbstractButton* CDockAreaTitleBar::button(TitleBarButton which) const
 	case TitleBarButtonUndock: return d->UndockButton;
 	case TitleBarButtonClose: return d->CloseButton;
 	case TitleBarButtonAutoHide: return d->AutoHideButton;
+	case TitleBarButtonMinimize: return d->MinimizeButton;
 	default:
 		return nullptr;
 	}
@@ -634,11 +673,9 @@ void CDockAreaTitleBar::mouseMoveEvent(QMouseEvent* ev)
 
 	// If one single dock widget in this area is not floatable then the whole
 	// area is not floatable
-	// If we do non opaque undocking, then we can create the floating drag
-	// preview if the dock widget is movable
+	// We can create the floating drag preview if the dock widget is movable
 	auto Features = d->DockArea->features();
-    if (!Features.testFlag(CDockWidget::DockWidgetFloatable)
-    && !(Features.testFlag(CDockWidget::DockWidgetMovable) && !CDockManager::testConfigFlag(CDockManager::OpaqueUndocking)))
+    if (!Features.testFlag(CDockWidget::DockWidgetFloatable) && !(Features.testFlag(CDockWidget::DockWidgetMovable)))
 	{
 		return;
 	}
@@ -671,15 +708,33 @@ void CDockAreaTitleBar::mouseDoubleClickEvent(QMouseEvent *event)
 	{
 		return;
 	}
-	if (d->DockArea->autoHideDockContainer())
-	{
-		d->DockArea->autoHideDockContainer()->cleanupAndDelete();
-	}
 
 	d->makeAreaFloating(event->pos(), DraggingInactive);
 }
 
 
+//============================================================================
+void CDockAreaTitleBar::setAreaFloating()
+{
+	// If this is the last dock area in a dock container it does not make
+	// sense to move it to a new floating widget and leave this one
+	// empty.
+	auto DockContainer = d->DockArea->dockContainer();
+	if (DockContainer->isFloating() && DockContainer->dockAreaCount() == 1
+	 && !d->DockArea->isAutoHide())
+	{
+		return;
+	}
+
+	if (!d->DockArea->features().testFlag(CDockWidget::DockWidgetFloatable))
+	{
+		return;
+	}
+
+	d->makeAreaFloating(mapFromGlobal(QCursor::pos()), DraggingInactive);
+}
+
+
 //============================================================================
 void CDockAreaTitleBar::contextMenuEvent(QContextMenuEvent* ev)
 {
@@ -716,7 +771,17 @@ void CDockAreaTitleBar::contextMenuEvent(QContextMenuEvent* ev)
 		}
 		Menu.addSeparator();
 	}
-	Action = Menu.addAction(isAutoHide ? tr("Close") : tr("Close Group"), this, SLOT(onCloseButtonClicked()));
+
+	if (isAutoHide)
+	{
+		Action = Menu.addAction(tr("Minimize"), this, SLOT(minimizeAutoHideContainer()));
+		Action = Menu.addAction(tr("Close"), this, SLOT(onAutoHideCloseActionTriggered()));
+	}
+	else
+	{
+		Action = Menu.addAction(isAutoHide ? tr("Close") : tr("Close Group"), this, SLOT(onCloseButtonClicked()));
+	}
+
 	Action->setEnabled(d->DockArea->features().testFlag(CDockWidget::DockWidgetClosable));
 	if (!isAutoHide && !isTopLevelArea)
 	{
@@ -763,7 +828,8 @@ QString CDockAreaTitleBar::titleBarButtonToolTip(TitleBarButton Button) const
 	case TitleBarButtonClose:
 		if (d->DockArea->isAutoHide())
 		{
-			return tr("Close");
+			bool Minimize = CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideCloseButtonCollapsesDock);
+			return Minimize ? tr("Minimize") : tr("Close");
 		}
 
 		if (CDockManager::testConfigFlag(CDockManager::DockAreaCloseButtonClosesTab))
@@ -783,11 +849,36 @@ QString CDockAreaTitleBar::titleBarButtonToolTip(TitleBarButton Button) const
 	return QString();
 }
 
+
 //============================================================================
-CTitleBarButton::CTitleBarButton(bool visible, QWidget* parent)
+void CDockAreaTitleBar::showAutoHideControls(bool Show)
+{
+	d->TabBar->setVisible(!Show); // Auto hide toolbar never has tabs
+	d->MinimizeButton->setVisible(Show);
+	d->AutoHideTitleLabel->setVisible(Show);
+}
+
+
+//============================================================================
+bool CDockAreaTitleBar::isAutoHide() const
+{
+	return d->DockArea && d->DockArea->isAutoHide();
+}
+
+
+//============================================================================
+CDockAreaWidget* CDockAreaTitleBar::dockAreaWidget() const
+{
+	return d->DockArea;
+}
+
+
+//============================================================================
+CTitleBarButton::CTitleBarButton(bool showInTitleBar, bool hideWhenDisabled, TitleBarButton ButtonId, QWidget* parent)
 	: tTitleBarButton(parent),
-	  Visible(visible),
-	  HideWhenDisabled(CDockManager::testConfigFlag(CDockManager::DockAreaHideDisabledButtons))
+	  ShowInTitleBar(showInTitleBar),
+	  HideWhenDisabled(CDockManager::testConfigFlag(CDockManager::DockAreaHideDisabledButtons) && hideWhenDisabled),
+	  TitleBarButtonId(ButtonId)
 {
     setFocusPolicy(Qt::NoFocus);
 }
@@ -795,8 +886,8 @@ CTitleBarButton::CTitleBarButton(bool visible, QWidget* parent)
 //============================================================================
 void CTitleBarButton::setVisible(bool visible)
 {
-	// 'visible' can stay 'true' if and only if this button is configured to generaly visible:
-	visible = visible && this->Visible;
+	// 'visible' can stay 'true' if and only if this button is configured to generally visible:
+	visible = visible && this->ShowInTitleBar;
 
 	// 'visible' can stay 'true' unless: this button is configured to be invisible when it is disabled and it is currently disabled:
 	if (visible && HideWhenDisabled)
@@ -807,19 +898,62 @@ void CTitleBarButton::setVisible(bool visible)
 	Super::setVisible(visible);
 }
 
+
+//============================================================================
+void CTitleBarButton::setShowInTitleBar(bool Show)
+{
+	this->ShowInTitleBar = Show;
+	if (!Show)
+	{
+		setVisible(false);
+	}
+}
+
+
 //============================================================================
 bool CTitleBarButton::event(QEvent *ev)
 {
-	if (QEvent::EnabledChange == ev->type() && HideWhenDisabled)
+	if (QEvent::EnabledChange != ev->type() || !HideWhenDisabled || !ShowInTitleBar)
 	{
-		// force setVisible() call 
-		// Calling setVisible() directly here doesn't work well when button is expected to be shown first time
-		QMetaObject::invokeMethod(this, "setVisible", Qt::QueuedConnection, Q_ARG(bool, isEnabled()));
+		return Super::event(ev);
 	}
 
+	bool Show = true;
+	if (isInAutoHideArea())
+	{
+		switch (TitleBarButtonId)
+        {
+		case TitleBarButtonClose: Show = CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideHasCloseButton); break;
+		case TitleBarButtonUndock: Show = false; break;
+		default:
+			break;
+        }
+	}
+
+	// force setVisible() call - Calling setVisible() directly here doesn't
+	// work well when button is expected to be shown first time
+	QMetaObject::invokeMethod(this, "setVisible", Qt::QueuedConnection,
+		Q_ARG(bool, isEnabledTo(this->parentWidget()) & Show));
+
 	return Super::event(ev);
 }
 
+
+//============================================================================
+CDockAreaTitleBar* CTitleBarButton::titleBar() const
+{
+	return qobject_cast<CDockAreaTitleBar*>(parentWidget());
+}
+
+
+//============================================================================
+bool CTitleBarButton::isInAutoHideArea() const
+{
+	auto TitleBar = titleBar();
+    return TitleBar && TitleBar->isAutoHide();
+}
+
+
 //============================================================================
 CSpacerWidget::CSpacerWidget(QWidget* Parent /*= 0*/) : Super(Parent)
 {
@@ -827,6 +961,7 @@ CSpacerWidget::CSpacerWidget(QWidget* Parent /*= 0*/) : Super(Parent)
 	setStyleSheet("border: none; background: none;");
 }
 
+
 } // namespace ads
 
 //---------------------------------------------------------------------------

src/DockAreaTitleBar.h

@@ -30,6 +30,7 @@
 //============================================================================
 //                                   INCLUDES
 //============================================================================
+#include <QToolButton>
 #include <QFrame>
 
 #include "ads_globals.h"
@@ -42,6 +43,63 @@ class CDockAreaTabBar;
 class CDockAreaWidget;
 struct DockAreaTitleBarPrivate;
 class CElidingLabel;
+class CDockAreaTitleBar;
+
+using tTitleBarButton = QToolButton;
+
+/**
+* Title bar button of a dock area that customizes tTitleBarButton appearance/behaviour
+* according to various config flags such as:
+* CDockManager::DockAreaHas_xxx_Button - if set to 'false' keeps the button always invisible
+* CDockManager::DockAreaHideDisabledButtons - if set to 'true' hides button when it is disabled
+*/
+class CTitleBarButton : public tTitleBarButton
+{
+	Q_OBJECT
+
+private:
+	bool ShowInTitleBar = true;
+	bool HideWhenDisabled = false;
+	TitleBarButton TitleBarButtonId;
+
+public:
+	using Super = tTitleBarButton;
+	CTitleBarButton(bool ShowInTitleBar, bool HideWhenDisabled, TitleBarButton ButtonId,
+		QWidget* parent = nullptr);
+
+	/**
+	* Adjust this visibility change request with our internal settings:
+	*/
+	virtual void setVisible(bool visible) override;
+
+	/**
+	 * Configures, if the title bar button should be shown in title bar
+	 */
+	void setShowInTitleBar(bool Show);
+
+	/**
+	 * Identifier for the title bar button
+	 */
+	TitleBarButton buttonId() const {return TitleBarButtonId;}
+
+	/**
+	 * Return the title bar that contains this button
+     */
+	CDockAreaTitleBar* titleBar() const;
+
+	/**
+	 * Returns true, if the button is in a title bar in an auto hide area
+	 */
+	bool isInAutoHideArea() const;
+
+
+protected:
+	/**
+	* Handle EnabledChanged signal to set button invisible if the configured
+	*/
+	bool event(QEvent *ev) override;
+};
+
 
 /**
  * Title bar of a dock area.
@@ -58,6 +116,8 @@ private:
 private Q_SLOTS:
 	void onTabsMenuAboutToShow();
 	void onCloseButtonClicked();
+	void onAutoHideCloseActionTriggered();
+	void minimizeAutoHideContainer();
 	void onUndockButtonClicked();
 	void onTabsMenuActionTriggered(QAction* Action);
 	void onCurrentTabChanged(int Index);
@@ -121,13 +181,18 @@ public:
 	/**
 	 * Returns the button corresponding to the given title bar button identifier
 	 */
-	QAbstractButton* button(TitleBarButton which) const;
+	CTitleBarButton* button(TitleBarButton which) const;
 
 	/**
 	 * Returns the auto hide title label, used when the dock area is expanded and auto hidden
 	 */
 	CElidingLabel* autoHideTitleLabel() const;
 
+	/**
+     * Returns the dock area widget that contains this title bar
+     */
+	CDockAreaWidget* dockAreaWidget() const;
+
 	/**
 	 * Updates the visibility of the dock widget actions in the title bar
 	 */
@@ -163,6 +228,22 @@ public:
 	 */
 	QString titleBarButtonToolTip(TitleBarButton Button) const;
 
+	/**
+	 * Moves the dock area into its own floating widget if the area
+	 * DockWidgetFloatable flag is true
+	 */
+	void setAreaFloating();
+
+	/**
+	 * Call this function, to create all the required auto hide controls
+	 */
+	void showAutoHideControls(bool Show);
+
+	/**
+	 * Returns true, if the auto hide controls are visible
+	 */
+	bool isAutoHide() const;
+
 Q_SIGNALS:
 	/**
 	 * This signal is emitted if a tab in the tab bar is clicked by the user

src/DockAreaTitleBar_p.h

@@ -31,43 +31,12 @@
 //                                   INCLUDES
 //============================================================================
 #include <QFrame>
-#include <QToolButton>
 
 #include "ads_globals.h"
 
 namespace ads
 {
-using tTitleBarButton = QToolButton;
 
-/**
-* Title bar button of a dock area that customizes tTitleBarButton appearance/behaviour
-* according to various config flags such as:
-* CDockManager::DockAreaHas_xxx_Button - if set to 'false' keeps the button always invisible
-* CDockManager::DockAreaHideDisabledButtons - if set to 'true' hides button when it is disabled
-*/
-class CTitleBarButton : public tTitleBarButton
-{
-	Q_OBJECT
-		
-private:
-	bool Visible = true;
-	bool HideWhenDisabled = false;
-
-public:
-	using Super = tTitleBarButton;
-	CTitleBarButton(bool visible = true, QWidget* parent = nullptr);
-
-	/**
-	* Adjust this visibility change request with our internal settings:
-	*/
-	virtual void setVisible(bool visible) override;
-
-protected:
-	/**
-	* Handle EnabledChanged signal to set button invisible if the configured
-	*/
-	bool event(QEvent *ev) override;
-};
 
 
 /**
@@ -83,7 +52,7 @@ class CSpacerWidget : public QWidget
 	Q_OBJECT
 public:
 	using Super = QWidget;
-	CSpacerWidget(QWidget* Parent = 0);
+	CSpacerWidget(QWidget* Parent = nullptr);
 	virtual QSize sizeHint() const override {return QSize(0, 0);}
 	virtual QSize minimumSizeHint() const override {return QSize(0, 0);}
 };

src/DockAreaWidget.cpp

@@ -81,7 +81,7 @@ class CDockAreaLayout
 {
 private:
 	QBoxLayout* m_ParentLayout;
-	QList<QWidget*> m_Widgets;
+	QList<QPointer<QWidget>> m_Widgets;
 	int m_CurrentIndex = -1;
 	QWidget* m_CurrentWidget = nullptr;
 
@@ -140,6 +140,7 @@ public:
 			{
 				LayoutItem->widget()->setParent(nullptr);
 			}
+			delete LayoutItem;
 			m_CurrentWidget = nullptr;
 			m_CurrentIndex = -1;
 		}
@@ -316,12 +317,12 @@ struct DockAreaWidgetPrivate
 	}
 
 	/**
-	 * Udpates the enable state of the close and detach button
+	 * Updates the enable state of the close and detach button
 	 */
 	void updateTitleBarButtonStates();
 
 	/**
-	 * Udpates the enable state of the close and detach button
+	 * Updates the enable state of the close and detach button
 	 */
 	void updateTitleBarButtonVisibility(bool isTopLevel);
 
@@ -369,10 +370,21 @@ void DockAreaWidgetPrivate::updateTitleBarButtonStates()
 		return;
 	}
 
-	TitleBar->button(TitleBarButtonClose)->setEnabled(
-		_this->features().testFlag(CDockWidget::DockWidgetClosable));
-	TitleBar->button(TitleBarButtonUndock)->setEnabled(
-		_this->features().testFlag(CDockWidget::DockWidgetFloatable));
+	if (_this->isAutoHide())
+	{
+		if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideHasCloseButton))
+        {
+			TitleBar->button(TitleBarButtonClose)->setEnabled(
+				_this->features().testFlag(CDockWidget::DockWidgetClosable));
+        }
+	}
+	else
+	{
+		TitleBar->button(TitleBarButtonUndock)->setEnabled(
+			_this->features().testFlag(CDockWidget::DockWidgetFloatable));
+		TitleBar->button(TitleBarButtonClose)->setEnabled(
+			_this->features().testFlag(CDockWidget::DockWidgetClosable));
+	}
 	TitleBar->button(TitleBarButtonAutoHide)->setEnabled(
 		_this->features().testFlag(CDockWidget::DockWidgetPinnable));
 	TitleBar->updateDockWidgetActionsButtons();
@@ -389,20 +401,30 @@ void DockAreaWidgetPrivate::updateTitleBarButtonVisibility(bool IsTopLevel)
 		return;
 	}
 
-	if (IsTopLevel)
+	bool IsAutoHide = _this->isAutoHide();
+	if (IsAutoHide)
+	{
+		bool ShowCloseButton = CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideHasCloseButton);
+		TitleBar->button(TitleBarButtonClose)->setVisible(ShowCloseButton);
+		TitleBar->button(TitleBarButtonAutoHide)->setVisible(true);
+		TitleBar->button(TitleBarButtonUndock)->setVisible(false);
+        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(false);
+	}
+	else if (IsTopLevel)
 	{
 		TitleBar->button(TitleBarButtonClose)->setVisible(!container->isFloating());
 		TitleBar->button(TitleBarButtonAutoHide)->setVisible(!container->isFloating());
         // Undock and tabs should never show when auto hidden
-		TitleBar->button(TitleBarButtonUndock)->setVisible(!container->isFloating() && !_this->isAutoHide());
-        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(!_this->isAutoHide());
+		TitleBar->button(TitleBarButtonUndock)->setVisible(!container->isFloating());
+        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(true);
 	}
 	else
 	{
 		TitleBar->button(TitleBarButtonClose)->setVisible(true);
-		TitleBar->button(TitleBarButtonAutoHide)->setVisible(true);
-		TitleBar->button(TitleBarButtonUndock)->setVisible(!_this->isAutoHide());
-        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(!_this->isAutoHide());
+		bool ShowAutoHideButton = CDockManager::testAutoHideConfigFlag(CDockManager::DockAreaHasAutoHideButton);
+		TitleBar->button(TitleBarButtonAutoHide)->setVisible(ShowAutoHideButton);
+		TitleBar->button(TitleBarButtonUndock)->setVisible(true);
+        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(true);
 	}
 }
 
@@ -454,6 +476,13 @@ CAutoHideDockContainer* CDockAreaWidget::autoHideDockContainer() const
 	return d->AutoHideDockContainer;
 }
 
+
+//============================================================================
+CDockSplitter* CDockAreaWidget::parentSplitter() const
+{
+	return internal::findParent<CDockSplitter*>(this);
+}
+
 //============================================================================
 bool CDockAreaWidget::isAutoHide() const
 {
@@ -466,6 +495,7 @@ void CDockAreaWidget::setAutoHideDockContainer(CAutoHideDockContainer* AutoHideD
 	d->AutoHideDockContainer = AutoHideDockContainer;
 	updateAutoHideButtonCheckState();
 	updateTitleBarButtonsToolTips();
+	d->TitleBar->button(TitleBarButtonAutoHide)->setShowInTitleBar(true);
 }
 
 
@@ -589,7 +619,7 @@ void CDockAreaWidget::hideAreaWithNoVisibleContent()
 	this->toggleView(false);
 
 	// Hide empty parent splitters
-	auto Splitter = internal::findParent<CDockSplitter*>(this);
+	auto Splitter = parentSplitter();
 	internal::hideEmptyParentSplitters(Splitter);
 
 	//Hide empty floating widget
@@ -625,15 +655,7 @@ void CDockAreaWidget::hideAreaWithNoVisibleContent()
 void CDockAreaWidget::onTabCloseRequested(int Index)
 {
     ADS_PRINT("CDockAreaWidget::onTabCloseRequested " << Index);
-    auto* DockWidget = dockWidget(Index);
-    if (DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) || DockWidget->features().testFlag(CDockWidget::CustomCloseHandling))
-    {
-    	DockWidget->closeDockWidgetInternal();
-    }
-    else
-    {
-    	DockWidget->toggleView(false);
-    }
+    dockWidget(Index)->requestCloseDockWidget();
 }
 
 
@@ -746,7 +768,7 @@ int CDockAreaWidget::openDockWidgetsCount() const
 	int Count = 0;
 	for (int i = 0; i < d->ContentsLayout->count(); ++i)
 	{
-		if (!dockWidget(i)->isClosed())
+		if (dockWidget(i) && !dockWidget(i)->isClosed())
 		{
 			++Count;
 		}
@@ -762,7 +784,7 @@ QList<CDockWidget*> CDockAreaWidget::openedDockWidgets() const
 	for (int i = 0; i < d->ContentsLayout->count(); ++i)
 	{
 		CDockWidget* DockWidget = dockWidget(i);
-		if (!DockWidget->isClosed())
+		if (DockWidget && !DockWidget->isClosed())
 		{
 			DockWidgetList.append(dockWidget(i));
 		}
@@ -776,7 +798,7 @@ int CDockAreaWidget::indexOfFirstOpenDockWidget() const
 {
 	for (int i = 0; i < d->ContentsLayout->count(); ++i)
 	{
-		if (!dockWidget(i)->isClosed())
+		if (dockWidget(i) && !dockWidget(i)->isClosed())
 		{
 			return i;
 		}
@@ -799,7 +821,6 @@ CDockWidget* CDockAreaWidget::dockWidget(int Index) const
 	return qobject_cast<CDockWidget*>(d->ContentsLayout->widget(Index));
 }
 
-
 //============================================================================
 void CDockAreaWidget::reorderDockWidget(int fromIndex, int toIndex)
 {
@@ -853,9 +874,7 @@ void CDockAreaWidget::updateTitleBarVisibility()
 
 	if (isAutoHideFeatureEnabled())
 	{
-		auto tabBar = d->TitleBar->tabBar();
-		tabBar->setVisible(!IsAutoHide);  // Never show tab bar when auto hidden
-		d->TitleBar->autoHideTitleLabel()->setVisible(IsAutoHide);  // Always show when auto hidden, never otherwise
+		d->TitleBar->showAutoHideControls(IsAutoHide);
 		updateTitleBarButtonVisibility(Container->topLevelDockArea() == this);
 	}
 }
@@ -1289,17 +1308,17 @@ SideBarLocation CDockAreaWidget::calculateSideTabBarArea() const
 	case BorderHorizontalLeft: SideTab = SideBarLocation::SideBarLeft; break;
 	case BorderHorizontalRight: SideTab = SideBarLocation::SideBarRight; break;
 
-	// 3. Its touching horizontal or vertical borders
+	// 3. It's touching horizontal or vertical borders
 	case BorderVertical : SideTab = SideBarLocation::SideBarBottom; break;
 	case BorderHorizontal: SideTab = SideBarLocation::SideBarRight; break;
 
-	// 4. Its in a corner
+	// 4. It's in a corner
 	case BorderTopLeft : SideTab = HorizontalOrientation ? SideBarLocation::SideBarTop : SideBarLocation::SideBarLeft; break;
 	case BorderTopRight : SideTab = HorizontalOrientation ? SideBarLocation::SideBarTop : SideBarLocation::SideBarRight; break;
 	case BorderBottomLeft : SideTab = HorizontalOrientation ? SideBarLocation::SideBarBottom : SideBarLocation::SideBarLeft; break;
 	case BorderBottomRight : SideTab = HorizontalOrientation ? SideBarLocation::SideBarBottom : SideBarLocation::SideBarRight; break;
 
-	// 5 Ists touching only one border
+	// 5. It's touching only one border
 	case BorderLeft: SideTab = SideBarLocation::SideBarLeft; break;
 	case BorderRight: SideTab = SideBarLocation::SideBarRight; break;
 	case BorderTop: SideTab = SideBarLocation::SideBarTop; break;
@@ -1311,7 +1330,7 @@ SideBarLocation CDockAreaWidget::calculateSideTabBarArea() const
 
 
 //============================================================================
-void CDockAreaWidget::setAutoHide(bool Enable, SideBarLocation Location)
+void CDockAreaWidget::setAutoHide(bool Enable, SideBarLocation Location, int TabIndex)
 {
 	if (!isAutoHideFeatureEnabled())
 	{
@@ -1322,11 +1341,18 @@ void CDockAreaWidget::setAutoHide(bool Enable, SideBarLocation Location)
 	{
 		if (isAutoHide())
 		{
-			autoHideDockContainer()->moveContentsToParent();
+			d->AutoHideDockContainer->moveContentsToParent();
 		}
 		return;
 	}
 
+	// If this is already an auto hide container, then move it to new location
+	if (isAutoHide())
+	{
+		d->AutoHideDockContainer->moveToNewSideBarLocation(Location, TabIndex);
+		return;
+	}
+
 	auto area = (SideBarNone == Location) ? calculateSideTabBarArea() : Location;
 	for (const auto DockWidget : openedDockWidgets())
 	{
@@ -1340,7 +1366,7 @@ void CDockAreaWidget::setAutoHide(bool Enable, SideBarLocation Location)
 			continue;
 		}
 
-		dockContainer()->createAndSetupAutoHideContainer(area, DockWidget);
+		dockContainer()->createAndSetupAutoHideContainer(area, DockWidget, TabIndex++);
 	}
 }
 
@@ -1441,6 +1467,13 @@ bool CDockAreaWidget::isTopLevelArea() const
 }
 
 
+//============================================================================
+void CDockAreaWidget::setFloating()
+{
+	d->TitleBar->setAreaFloating();
+}
+
+
 #ifdef Q_OS_WIN
 //============================================================================
 bool CDockAreaWidget::event(QEvent *e)

src/DockAreaWidget.h

@@ -47,6 +47,7 @@ class CDockContainerWidget;
 class DockContainerWidgetPrivate;
 class CDockAreaTitleBar;
 class CDockingStateReader;
+class CDockSplitter;
 
 
 /**
@@ -216,12 +217,16 @@ public:
 	 */
 	CAutoHideDockContainer* autoHideDockContainer() const; 
 
+	/**
+	 * Returns the parent splitter that contains this dock area
+	 */
+	CDockSplitter* parentSplitter() const;
+
 	/**
 	 * Returns true if the dock area is in an auto hide container
 	 */
 	bool isAutoHide() const;
 
-
 	/**
 	 * Sets the current auto hide dock container
 	 */
@@ -401,7 +406,7 @@ public Q_SLOTS:
 	 * If the dock area is switched to auto hide mode, then all dock widgets
 	 * that are pinable will be added to the sidebar
 	 */
-	void setAutoHide(bool Enable, SideBarLocation Location = SideBarNone);
+	void setAutoHide(bool Enable, SideBarLocation Location = SideBarNone, int TabIndex = -1);
 
 	/**
 	 * Switches the dock area to auto hide mode or vice versa depending on its
@@ -414,6 +419,12 @@ public Q_SLOTS:
 	 */
 	void closeOtherAreas();
 
+	/**
+	 * Moves the dock area into its own floating widget if the area
+	 * DockWidgetFloatable flag is true
+	 */
+	void setFloating();
+
 Q_SIGNALS:
 	/**
 	 * This signal is emitted when user clicks on a tab at an index.

src/DockContainerWidget.cpp

@@ -141,11 +141,11 @@ public:
 	CDockContainerWidget* _this;
 	QPointer<CDockManager> DockManager;
 	unsigned int zOrderIndex = 0;
-	QList<CDockAreaWidget*> DockAreas;
+	QList<QPointer<CDockAreaWidget>> DockAreas;
 	QList<CAutoHideDockContainer*> AutoHideWidgets;
 	QMap<SideBarLocation, CAutoHideSideBar*> SideTabBarWidgets;
 	QGridLayout* Layout = nullptr;
-	QSplitter* RootSplitter = nullptr;
+	CDockSplitter* RootSplitter = nullptr;
 	bool isFloating = false;
 	CDockAreaWidget* LastAddedAreaCache[5];
 	int VisibleDockAreaCount = -1;
@@ -181,17 +181,29 @@ public:
 	 */
 	void dropIntoContainer(CFloatingDockContainer* FloatingWidget, DockWidgetArea area);
 
+	/**
+	 * Drop floating widget into auto hide side bar
+	 */
+	void dropIntoAutoHideSideBar(CFloatingDockContainer* FloatingWidget, DockWidgetArea area);
+
+	/**
+	 * Creates a new tab for a widget dropped into the center of a section
+	 */
+	void dropIntoCenterOfSection(CFloatingDockContainer* FloatingWidget,
+		CDockAreaWidget* TargetArea, int TabIndex = 0);
+
 	/**
 	 * Drop floating widget into dock area
 	 */
 	void dropIntoSection(CFloatingDockContainer* FloatingWidget,
-		CDockAreaWidget* TargetArea, DockWidgetArea area);
+		CDockAreaWidget* TargetArea, DockWidgetArea area, int TabIndex = 0);
 
 	/**
 	 * Moves the dock widget or dock area given in Widget parameter to a
 	 * new dock widget area
 	 */
-	void moveToNewSection(QWidget* Widget, CDockAreaWidget* TargetArea, DockWidgetArea area);
+	void moveToNewSection(QWidget* Widget, CDockAreaWidget* TargetArea, DockWidgetArea area,
+		int TabIndex = 0);
 
 	/**
 	 * Moves the dock widget or dock area given in Widget parameter to a
@@ -202,13 +214,13 @@ public:
 	/**
 	 * Creates a new tab for a widget dropped into the center of a section
 	 */
-	void dropIntoCenterOfSection(CFloatingDockContainer* FloatingWidget,
-		CDockAreaWidget* TargetArea);
+	void moveIntoCenterOfSection(QWidget* Widget, CDockAreaWidget* TargetArea, int TabIndex = 0);
 
 	/**
-	 * Creates a new tab for a widget dropped into the center of a section
+	 * Moves the dock widget or dock area given in Widget parameter to
+	 * a auto hide sidebar area
 	 */
-	void moveIntoCenterOfSection(QWidget* Widget, CDockAreaWidget* TargetArea);
+	void moveToAutoHideSideBar(QWidget* Widget, DockWidgetArea area, int TabIndex = TabDefaultInsertIndex);
 
 
 	/**
@@ -238,7 +250,7 @@ public:
 	 * \param[out] CreatedWidget The widget created from parsed data or 0 if
 	 * the parsed widget was an empty splitter
 	 * \param[in] Testing If Testing is true, only the stream data is
-	 * parsed without modifiying anything.
+	 * parsed without modifying anything.
 	 */
 	bool restoreChildNodes(CDockingStateReader& Stream, QWidget*& CreatedWidget,
 		bool Testing);
@@ -287,7 +299,11 @@ public:
 		VisibleDockAreaCount = 0;
 		for (auto DockArea : DockAreas)
 		{
-			VisibleDockAreaCount += DockArea->isHidden() ? 0 : 1;
+			if (!DockArea)
+			{
+				continue;
+			}
+			VisibleDockAreaCount += (DockArea->isHidden() ? 0 : 1);
 		}
 	}
 
@@ -454,7 +470,7 @@ void DockContainerWidgetPrivate::dropIntoContainer(CFloatingDockContainer* Float
 	CDockContainerWidget* FloatingDockContainer = FloatingWidget->dockContainer();
 	auto NewDockAreas = FloatingDockContainer->findChildren<CDockAreaWidget*>(
 		QString(), Qt::FindChildrenRecursively);
-	QSplitter* Splitter = RootSplitter;
+	auto Splitter = RootSplitter;
 
 	if (DockAreas.count() <= 1)
 	{
@@ -462,7 +478,7 @@ void DockContainerWidgetPrivate::dropIntoContainer(CFloatingDockContainer* Float
 	}
 	else if (Splitter->orientation() != InsertParam.orientation())
 	{
-		QSplitter* NewSplitter = newSplitter(InsertParam.orientation());
+		auto NewSplitter = newSplitter(InsertParam.orientation());
 		QLayoutItem* li = Layout->replaceWidget(Splitter, NewSplitter);
 		NewSplitter->addWidget(Splitter);
         updateSplitterHandles(NewSplitter);
@@ -505,14 +521,33 @@ void DockContainerWidgetPrivate::dropIntoContainer(CFloatingDockContainer* Float
 }
 
 
+//============================================================================
+void DockContainerWidgetPrivate::dropIntoAutoHideSideBar(CFloatingDockContainer* FloatingWidget, DockWidgetArea area)
+{
+	auto SideBarLocation = internal::toSideBarLocation(area);
+	auto NewDockAreas = FloatingWidget->findChildren<CDockAreaWidget*>(
+		QString(), Qt::FindChildrenRecursively);
+	int TabIndex = DockManager->containerOverlay()->tabIndexUnderCursor();
+	for (auto DockArea : NewDockAreas)
+	{
+		auto DockWidgets = DockArea->dockWidgets();
+		for (auto DockWidget : DockWidgets)
+		{
+			_this->createAndSetupAutoHideContainer(SideBarLocation, DockWidget, TabIndex++);
+		}
+	}
+}
+
+
 //============================================================================
 void DockContainerWidgetPrivate::dropIntoCenterOfSection(
-	CFloatingDockContainer* FloatingWidget, CDockAreaWidget* TargetArea)
+	CFloatingDockContainer* FloatingWidget, CDockAreaWidget* TargetArea, int TabIndex)
 {
 	CDockContainerWidget* FloatingContainer = FloatingWidget->dockContainer();
 	auto NewDockWidgets = FloatingContainer->dockWidgets();
 	auto TopLevelDockArea = FloatingContainer->topLevelDockArea();
 	int NewCurrentIndex = -1;
+	TabIndex = qMax(0, TabIndex);
 
 	// If the floating widget contains only one single dock are, then the
 	// current dock widget of the dock area will also be the future current
@@ -525,7 +560,7 @@ void DockContainerWidgetPrivate::dropIntoCenterOfSection(
 	for (int i = 0; i < NewDockWidgets.count(); ++i)
 	{
 		CDockWidget* DockWidget = NewDockWidgets[i];
-		TargetArea->insertDockWidget(i, DockWidget, false);
+		TargetArea->insertDockWidget(TabIndex + i, DockWidget, false);
 		// If the floating widget contains multiple visible dock areas, then we
 		// simply pick the first visible open dock widget and make it
 		// the current one.
@@ -534,7 +569,7 @@ void DockContainerWidgetPrivate::dropIntoCenterOfSection(
 			NewCurrentIndex = i;
 		}
 	}
-	TargetArea->setCurrentIndex(NewCurrentIndex);
+	TargetArea->setCurrentIndex(NewCurrentIndex + TabIndex);
 	TargetArea->updateTitleBarVisibility();
 	return;
 }
@@ -542,13 +577,13 @@ void DockContainerWidgetPrivate::dropIntoCenterOfSection(
 
 //============================================================================
 void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* FloatingWidget,
-		CDockAreaWidget* TargetArea, DockWidgetArea area)
+		CDockAreaWidget* TargetArea, DockWidgetArea area, int TabIndex)
 {
 	// Dropping into center means all dock widgets in the dropped floating
 	// widget will become tabs of the drop area
 	if (CenterDockWidgetArea == area)
 	{
-		dropIntoCenterOfSection(FloatingWidget, TargetArea);
+		dropIntoCenterOfSection(FloatingWidget, TargetArea, TabIndex);
 		return;
 	}
 
@@ -556,16 +591,7 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
 	auto InsertParam = internal::dockAreaInsertParameters(area);
 	auto NewDockAreas = FloatingContainer->findChildren<CDockAreaWidget*>(
 		QString(), Qt::FindChildrenRecursively);
-	QSplitter* TargetAreaSplitter = internal::findParent<QSplitter*>(TargetArea);
-
-	if (!TargetAreaSplitter)
-	{
-		QSplitter* Splitter = newSplitter(InsertParam.orientation());
-		Layout->replaceWidget(TargetArea, Splitter);
-		Splitter->addWidget(TargetArea);
-        updateSplitterHandles(Splitter);
-        TargetAreaSplitter = Splitter;
-	}
+	auto TargetAreaSplitter = TargetArea->parentSplitter();
 	int AreaIndex = TargetAreaSplitter->indexOf(TargetArea);
 	auto FloatingSplitter = FloatingContainer->rootSplitter();
 	if (TargetAreaSplitter->orientation() == InsertParam.orientation())
@@ -638,11 +664,13 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
 
 
 //============================================================================
-void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockAreaWidget* TargetArea)
+void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockAreaWidget* TargetArea,
+	int TabIndex)
 {
 	auto DroppedDockWidget = qobject_cast<CDockWidget*>(Widget);
 	auto DroppedArea = qobject_cast<CDockAreaWidget*>(Widget);
 
+	TabIndex = qMax(0, TabIndex);
 	if (DroppedDockWidget)
 	{
 		CDockAreaWidget* OldDockArea = DroppedDockWidget->dockAreaWidget();
@@ -655,7 +683,7 @@ void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockA
 		{
 			OldDockArea->removeDockWidget(DroppedDockWidget);
 		}
-		TargetArea->insertDockWidget(0, DroppedDockWidget, true);
+		TargetArea->insertDockWidget(TabIndex, DroppedDockWidget, true);
 	}
 	else
 	{
@@ -664,9 +692,9 @@ void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockA
 		for (int i = 0; i < NewDockWidgets.count(); ++i)
 		{
 			CDockWidget* DockWidget = NewDockWidgets[i];
-			TargetArea->insertDockWidget(i, DockWidget, false);
+			TargetArea->insertDockWidget(TabIndex + i, DockWidget, false);
 		}
-		TargetArea->setCurrentIndex(NewCurrentIndex);
+		TargetArea->setCurrentIndex(TabIndex + NewCurrentIndex);
 		DroppedArea->dockContainer()->removeDockArea(DroppedArea);
 		DroppedArea->deleteLater();
 	}
@@ -677,13 +705,14 @@ void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockA
 
 
 //============================================================================
-void DockContainerWidgetPrivate::moveToNewSection(QWidget* Widget, CDockAreaWidget* TargetArea, DockWidgetArea area)
+void DockContainerWidgetPrivate::moveToNewSection(QWidget* Widget, CDockAreaWidget* TargetArea, DockWidgetArea area,
+	int TabIndex)
 {
 	// Dropping into center means all dock widgets in the dropped floating
 	// widget will become tabs of the drop area
 	if (CenterDockWidgetArea == area)
 	{
-		moveIntoCenterOfSection(Widget, TargetArea);
+		moveIntoCenterOfSection(Widget, TargetArea, TabIndex);
 		return;
 	}
 
@@ -708,7 +737,7 @@ void DockContainerWidgetPrivate::moveToNewSection(QWidget* Widget, CDockAreaWidg
 	}
 
 	auto InsertParam = internal::dockAreaInsertParameters(area);
-	QSplitter* TargetAreaSplitter = internal::findParent<QSplitter*>(TargetArea);
+	auto TargetAreaSplitter = TargetArea->parentSplitter();
 	int AreaIndex = TargetAreaSplitter->indexOf(TargetArea);
 	auto Sizes = TargetAreaSplitter->sizes();
 	if (TargetAreaSplitter->orientation() == InsertParam.orientation())
@@ -738,6 +767,48 @@ void DockContainerWidgetPrivate::moveToNewSection(QWidget* Widget, CDockAreaWidg
 }
 
 
+//============================================================================
+void DockContainerWidgetPrivate::moveToAutoHideSideBar(QWidget* Widget, DockWidgetArea area, int TabIndex)
+{
+	CDockWidget* DroppedDockWidget = qobject_cast<CDockWidget*>(Widget);
+	CDockAreaWidget* DroppedDockArea = qobject_cast<CDockAreaWidget*>(Widget);
+	auto SideBarLocation = internal::toSideBarLocation(area);
+
+	if (DroppedDockWidget)
+	{
+		if (_this == DroppedDockWidget->dockContainer())
+		{
+			DroppedDockWidget->setAutoHide(true, SideBarLocation, TabIndex);
+		}
+		else
+		{
+			_this->createAndSetupAutoHideContainer(SideBarLocation, DroppedDockWidget, TabIndex);
+		}
+	}
+	else
+	{
+		if (_this == DroppedDockArea->dockContainer())
+		{
+			DroppedDockArea->setAutoHide(true, SideBarLocation, TabIndex);
+		}
+		else
+		{
+			for (const auto DockWidget : DroppedDockArea->openedDockWidgets())
+			{
+				if (!DockWidget->features().testFlag(
+				    CDockWidget::DockWidgetPinnable))
+				{
+					continue;
+				}
+
+				_this->createAndSetupAutoHideContainer(SideBarLocation,
+				    DockWidget, TabIndex++);
+			}
+		}
+	}
+}
+
+
 //============================================================================
 void DockContainerWidgetPrivate::updateSplitterHandles( QSplitter* splitter )
 {
@@ -801,7 +872,7 @@ void DockContainerWidgetPrivate::moveToContainer(QWidget* Widget, DockWidgetArea
 		// it already has and do nothing, if it is the same place. It would
 		// also work without this check, but it looks nicer with the check
 		// because there will be no layout updates
-		auto Splitter = internal::findParent<CDockSplitter*>(DroppedDockArea);
+		auto Splitter = DroppedDockArea->parentSplitter();
 		auto InsertParam = internal::dockAreaInsertParameters(area);
 		if (Splitter == RootSplitter && InsertParam.orientation() == Splitter->orientation())
 		{
@@ -857,7 +928,10 @@ void DockContainerWidgetPrivate::addDockAreasToList(const QList<CDockAreaWidget*
 //============================================================================
 void DockContainerWidgetPrivate::appendDockAreas(const QList<CDockAreaWidget*> NewDockAreas)
 {
-	DockAreas.append(NewDockAreas);
+	for (auto *newDockArea : NewDockAreas)
+	{
+		DockAreas.append(newDockArea);
+	}
 	for (auto DockArea : NewDockAreas)
 	{
 		QObject::connect(DockArea,
@@ -908,7 +982,7 @@ void DockContainerWidgetPrivate::saveAutoHideWidgetsState(QXmlStreamWriter& s)
 {
 	for (const auto sideTabBar : SideTabBarWidgets.values())
     {
-		if (!sideTabBar->tabCount())
+		if (!sideTabBar->count())
 		{
 			continue;
 		}
@@ -1101,12 +1175,12 @@ bool DockContainerWidgetPrivate::restoreSideBar(CDockingStateReader& s,
 			continue;
 		}
 
-		auto SideBar = _this->sideTabBar(Area);
+		auto SideBar = _this->autoHideSideBar(Area);
 		CAutoHideDockContainer* AutoHideContainer;
 		if (DockWidget->isAutoHide())
 		{
 			AutoHideContainer = DockWidget->autoHideDockContainer();
-			if (AutoHideContainer->sideBar() != SideBar)
+			if (AutoHideContainer->autoHideSideBar() != SideBar)
 			{
 				SideBar->addAutoHideWidget(AutoHideContainer);
 			}
@@ -1193,7 +1267,7 @@ void DockContainerWidgetPrivate::addDockArea(CDockAreaWidget* NewDockArea, DockW
 	}
 	else
 	{
-		QSplitter* NewSplitter = newSplitter(InsertParam.orientation());
+		auto NewSplitter = newSplitter(InsertParam.orientation());
 		if (InsertParam.append())
 		{
 			QLayoutItem* li = Layout->replaceWidget(Splitter, NewSplitter);
@@ -1288,7 +1362,7 @@ CDockAreaWidget* DockContainerWidgetPrivate::addDockWidgetToDockArea(DockWidgetA
 	NewDockArea->addDockWidget(Dockwidget);
 	auto InsertParam = internal::dockAreaInsertParameters(area);
 
-	QSplitter* TargetAreaSplitter = internal::findParent<QSplitter*>(TargetDockArea);
+	auto TargetAreaSplitter = TargetDockArea->parentSplitter();
 	int index = TargetAreaSplitter ->indexOf(TargetDockArea);
 	if (TargetAreaSplitter->orientation() == InsertParam.orientation())
 	{
@@ -1305,7 +1379,7 @@ CDockAreaWidget* DockContainerWidgetPrivate::addDockWidgetToDockArea(DockWidgetA
 	{
 		ADS_PRINT("TargetAreaSplitter->orientation() != InsertParam.orientation()");
 		auto TargetAreaSizes = TargetAreaSplitter->sizes();
-		QSplitter* NewSplitter = newSplitter(InsertParam.orientation());
+		auto NewSplitter = newSplitter(InsertParam.orientation());
 		NewSplitter->addWidget(TargetDockArea);
 
 		insertWidgetIntoSplitter(NewSplitter, NewDockArea, InsertParam.append());
@@ -1404,7 +1478,7 @@ CDockAreaWidget* CDockContainerWidget::addDockWidget(DockWidgetArea area, CDockW
 
 //============================================================================
 CAutoHideDockContainer* CDockContainerWidget::createAndSetupAutoHideContainer(
-	SideBarLocation area, CDockWidget* DockWidget)
+	SideBarLocation area, CDockWidget* DockWidget, int TabIndex)
 {
 	if (!CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled))
 	{
@@ -1417,7 +1491,7 @@ CAutoHideDockContainer* CDockContainerWidget::createAndSetupAutoHideContainer(
         DockWidget->setDockManager(d->DockManager); // Auto hide Dock Container needs a valid dock manager
 	}
 
-	return sideTabBar(area)->insertDockWidget(-1, DockWidget);
+	return autoHideSideBar(area)->insertDockWidget(TabIndex, DockWidget);
 }
 
 
@@ -1496,7 +1570,7 @@ void CDockContainerWidget::removeDockArea(CDockAreaWidget* area)
 
 	area->disconnect(this);
 	d->DockAreas.removeAll(area);
-	CDockSplitter* Splitter = internal::findParent<CDockSplitter*>(area);
+	auto Splitter = area->parentSplitter();
 
 	// Remove are from parent splitter and recursively hide tree of parent
 	// splitters if it has no visible content
@@ -1528,7 +1602,7 @@ void CDockContainerWidget::removeDockArea(CDockAreaWidget* area)
 		}
 
 		QWidget* widget = Splitter->widget(0);
-		QSplitter* ChildSplitter = qobject_cast<QSplitter*>(widget);
+		auto ChildSplitter = qobject_cast<CDockSplitter*>(widget);
 		// If the one and only content widget of the splitter is not a splitter
 		// then we are finished
 		if (!ChildSplitter)
@@ -1569,12 +1643,21 @@ emitAndExit:
 }
 
 
+//============================================================================
+QList<QPointer<CDockAreaWidget>> CDockContainerWidget::removeAllDockAreas()
+{
+	auto Result = d->DockAreas;
+	d->DockAreas.clear();
+	return Result;
+}
+
+
 //============================================================================
 CDockAreaWidget* CDockContainerWidget::dockAreaAt(const QPoint& GlobalPos) const
 {
 	for (const auto& DockArea : d->DockAreas)
 	{
-		if (DockArea->isVisible() && DockArea->rect().contains(DockArea->mapFromGlobal(GlobalPos)))
+		if (DockArea && DockArea->isVisible() && DockArea->rect().contains(DockArea->mapFromGlobal(GlobalPos)))
 		{
 			return DockArea;
 		}
@@ -1611,7 +1694,7 @@ int CDockContainerWidget::visibleDockAreaCount() const
 	int Result = 0;
 	for (auto DockArea : d->DockAreas)
 	{
-		Result += DockArea->isHidden() ? 0 : 1;
+		Result += (!DockArea || DockArea->isHidden()) ? 0 : 1;
 	}
 
 	return Result;
@@ -1629,11 +1712,12 @@ void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWi
     ADS_PRINT("CDockContainerWidget::dropFloatingWidget");
 	CDockWidget* SingleDroppedDockWidget = FloatingWidget->topLevelDockWidget();
 	CDockWidget* SingleDockWidget = topLevelDockWidget();
-	CDockAreaWidget* DockArea = dockAreaAt(TargetPos);
 	auto dropArea = InvalidDockWidgetArea;
 	auto ContainerDropArea = d->DockManager->containerOverlay()->dropAreaUnderCursor();
 	bool Dropped = false;
 
+	CDockAreaWidget* DockArea = dockAreaAt(TargetPos);
+	// mouse is over dock area
 	if (DockArea)
 	{
 		auto dropOverlay = d->DockManager->dockAreaOverlay();
@@ -1648,35 +1732,40 @@ void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWi
 		if (dropArea != InvalidDockWidgetArea)
 		{
             ADS_PRINT("Dock Area Drop Content: " << dropArea);
-			d->dropIntoSection(FloatingWidget, DockArea, dropArea);
+            int TabIndex = d->DockManager->dockAreaOverlay()->tabIndexUnderCursor();
+			d->dropIntoSection(FloatingWidget, DockArea, dropArea, TabIndex);
 			Dropped = true;
 		}
 	}
 
-	// mouse is over container
-	if (InvalidDockWidgetArea == dropArea)
+	// mouse is over container or auto hide side bar
+	if (InvalidDockWidgetArea == dropArea && InvalidDockWidgetArea != ContainerDropArea)
 	{
-		dropArea = ContainerDropArea;
-        ADS_PRINT("Container Drop Content: " << dropArea);
-		if (dropArea != InvalidDockWidgetArea)
-		{
-			d->dropIntoContainer(FloatingWidget, dropArea);
-			Dropped = true;
-		}
+        if (internal::isSideBarArea(ContainerDropArea))
+        {
+        	ADS_PRINT("Container Drop Content: " << ContainerDropArea);
+        	d->dropIntoAutoHideSideBar(FloatingWidget, ContainerDropArea);
+        }
+        else
+        {
+        	ADS_PRINT("Container Drop Content: " << ContainerDropArea);
+        	d->dropIntoContainer(FloatingWidget, ContainerDropArea);
+        }
+		Dropped = true;
 	}
 
     // Remove the auto hide widgets from the FloatingWidget and insert
 	// them into this widget
 	for (auto AutohideWidget : FloatingWidget->dockContainer()->autoHideWidgets())
 	{
-		auto SideBar = sideTabBar(AutohideWidget->sideBarLocation());
+		auto SideBar = autoHideSideBar(AutohideWidget->sideBarLocation());
 		SideBar->addAutoHideWidget(AutohideWidget);
 	}
 
 	if (Dropped)
 	{ 
 		// Fix https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/issues/351
-		FloatingWidget->hideAndDeleteLater();
+		FloatingWidget->finishDropOperation();
 
 		// If we dropped a floating widget with only one single dock widget, then we
 		// drop a top level widget that changes from floating to docked now
@@ -1697,12 +1786,17 @@ void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWi
 
 
 //============================================================================
-void CDockContainerWidget::dropWidget(QWidget* Widget, DockWidgetArea DropArea, CDockAreaWidget* TargetAreaWidget)
+void CDockContainerWidget::dropWidget(QWidget* Widget, DockWidgetArea DropArea, CDockAreaWidget* TargetAreaWidget,
+	int TabIndex)
 {
     CDockWidget* SingleDockWidget = topLevelDockWidget();
 	if (TargetAreaWidget)
 	{
-		d->moveToNewSection(Widget, TargetAreaWidget, DropArea);
+		d->moveToNewSection(Widget, TargetAreaWidget, DropArea, TabIndex);
+	}
+	else if (internal::isSideBarArea(DropArea))
+	{
+		d->moveToAutoHideSideBar(Widget, DropArea, TabIndex);
 	}
 	else
 	{
@@ -1724,7 +1818,7 @@ QList<CDockAreaWidget*> CDockContainerWidget::openedDockAreas() const
 	QList<CDockAreaWidget*> Result;
 	for (auto DockArea : d->DockAreas)
 	{
-		if (!DockArea->isHidden())
+		if (DockArea && !DockArea->isHidden())
 		{
 			Result.append(DockArea);
 		}
@@ -1740,7 +1834,7 @@ QList<CDockWidget*> CDockContainerWidget::openedDockWidgets() const
 	QList<CDockWidget*> DockWidgetList;
 	for (auto DockArea : d->DockAreas)
 	{
-		if (!DockArea->isHidden())
+		if (DockArea && !DockArea->isHidden())
 		{
 			DockWidgetList.append(DockArea->openedDockWidgets());
 		}
@@ -1755,7 +1849,7 @@ bool CDockContainerWidget::hasOpenDockAreas() const
 {
 	for (auto DockArea : d->DockAreas)
 	{
-		if (!DockArea->isHidden())
+		if (DockArea && !DockArea->isHidden())
 		{
 			return true;
 		}
@@ -1845,17 +1939,18 @@ bool CDockContainerWidget::restoreState(CDockingStateReader& s, bool Testing)
 		NewRootSplitter = d->newSplitter(Qt::Horizontal);
 	}
 
-	d->Layout->replaceWidget(d->RootSplitter, NewRootSplitter);
-	QSplitter* OldRoot = d->RootSplitter;
-	d->RootSplitter = qobject_cast<QSplitter*>(NewRootSplitter);
+	QLayoutItem* li = d->Layout->replaceWidget(d->RootSplitter, NewRootSplitter);
+	auto OldRoot = d->RootSplitter;
+	d->RootSplitter = qobject_cast<CDockSplitter*>(NewRootSplitter);
 	OldRoot->deleteLater();
+	delete li;
 
 	return true;
 }
 
 
 //============================================================================
-QSplitter* CDockContainerWidget::rootSplitter() const
+CDockSplitter* CDockContainerWidget::rootSplitter() const
 {
 	return d->RootSplitter;
 }
@@ -1977,8 +2072,12 @@ CDockAreaWidget* CDockContainerWidget::topLevelDockArea() const
 QList<CDockWidget*> CDockContainerWidget::dockWidgets() const
 {
 	QList<CDockWidget*> Result;
-	for (const auto DockArea : d->DockAreas)
+    for (const auto& DockArea : d->DockAreas)
 	{
+		if (!DockArea)
+		{
+			continue;
+		}
 		Result.append(DockArea->dockWidgets());
 	}
 
@@ -2009,8 +2108,12 @@ void CDockContainerWidget::removeAutoHideWidget(CAutoHideDockContainer* Autohide
 CDockWidget::DockWidgetFeatures CDockContainerWidget::features() const
 {
 	CDockWidget::DockWidgetFeatures Features(CDockWidget::AllDockWidgetFeatures);
-	for (const auto DockArea : d->DockAreas)
+    for (const auto& DockArea : d->DockAreas)
 	{
+		if (!DockArea)
+		{
+			continue;
+		}
 		Features &= DockArea->features();
 	}
 
@@ -2028,9 +2131,9 @@ CFloatingDockContainer* CDockContainerWidget::floatingWidget() const
 //============================================================================
 void CDockContainerWidget::closeOtherAreas(CDockAreaWidget* KeepOpenArea)
 {
-	for (const auto DockArea : d->DockAreas)
+    for (const auto& DockArea : d->DockAreas)
 	{
-		if (DockArea == KeepOpenArea)
+		if (!DockArea || DockArea == KeepOpenArea)
 		{
 			continue;
 		}
@@ -2051,7 +2154,7 @@ void CDockContainerWidget::closeOtherAreas(CDockAreaWidget* KeepOpenArea)
 }
 
 //============================================================================
-CAutoHideSideBar* CDockContainerWidget::sideTabBar(SideBarLocation area) const
+CAutoHideSideBar* CDockContainerWidget::autoHideSideBar(SideBarLocation area) const
 {
 	return d->SideTabBarWidgets[area];
 }
@@ -2065,7 +2168,21 @@ QRect CDockContainerWidget::contentRect() const
 		return QRect();
 	}
 
-	return d->RootSplitter->geometry();
+	if (d->RootSplitter->hasVisibleContent())
+	{
+		return d->RootSplitter->geometry();
+	}
+	else
+	{
+		auto ContentRect = this->rect();
+		ContentRect.adjust(
+			autoHideSideBar(SideBarLeft)->sizeHint().width(),
+			autoHideSideBar(SideBarTop)->sizeHint().height(),
+			-autoHideSideBar(SideBarRight)->sizeHint().width(),
+			-autoHideSideBar(SideBarBottom)->sizeHint().height());
+
+		return ContentRect;
+	}
 }
 
 

src/DockContainerWidget.h

@@ -53,6 +53,7 @@ struct FloatingDragPreviewPrivate;
 class CDockingStateReader;
 class CAutoHideSideBar;
 class CAutoHideTab;
+class CDockSplitter;
 struct AutoHideTabPrivate;
 struct AutoHideDockContainerPrivate;
 
@@ -94,14 +95,14 @@ protected:
 	/**
 	 * Access function for the internal root splitter
 	 */
-	QSplitter* rootSplitter() const;
+	CDockSplitter* rootSplitter() const;
 
 	/**
 	 * Creates and initializes a dockwidget auto hide container into the given area.
 	 * Initializing inserts the tabs into the side tab widget and hides it
 	 * Returns nullptr if you try and insert into an area where the configuration is not enabled
 	 */
-	CAutoHideDockContainer* createAndSetupAutoHideContainer(SideBarLocation area, CDockWidget* DockWidget);
+	CAutoHideDockContainer* createAndSetupAutoHideContainer(SideBarLocation area, CDockWidget* DockWidget, int TabIndex = -1);
 
 	/**
 	 * Helper function for creation of the root splitter
@@ -125,18 +126,24 @@ protected:
 	 * a nullptr, then the DropArea indicates the drop area in the given
 	 * TargetAreaWidget
 	 */
-	void dropWidget(QWidget* Widget, DockWidgetArea DropArea, CDockAreaWidget* TargetAreaWidget);
+	void dropWidget(QWidget* Widget, DockWidgetArea DropArea, CDockAreaWidget* TargetAreaWidget,
+		int TabIndex = -1);
 
 	/**
 	 * Adds the given dock area to this container widget
 	 */
-	void addDockArea(CDockAreaWidget* DockAreaWidget, DockWidgetArea area = CenterDockWidgetArea);
+	void addDockArea(CDockAreaWidget* DockAreaWidget, DockWidgetArea area = ads::CenterDockWidgetArea);
 
 	/**
 	 * Removes the given dock area from this container
 	 */
 	void removeDockArea(CDockAreaWidget* area);
 
+	/**
+	 * Remove all dock areas and returns the list of removed dock areas
+	 */
+	QList<QPointer<CDockAreaWidget>> removeAllDockAreas();
+
 	/**
 	 * Saves the state into the given stream
 	 */
@@ -322,7 +329,7 @@ public:
 	/**
 	 * Returns the side tab widget for the given area
 	 */
-	CAutoHideSideBar* sideTabBar(SideBarLocation area) const;
+	CAutoHideSideBar* autoHideSideBar(SideBarLocation area) const;
 
 
 	/**

src/DockFocusController.cpp

@@ -27,7 +27,7 @@
 #include "DockManager.h"
 #include "DockAreaTitleBar.h"
 
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
 #include "linux/FloatingWidgetTitleBar.h"
 #endif
 
@@ -44,11 +44,12 @@ struct DockFocusControllerPrivate
 	QPointer<CDockWidget> FocusedDockWidget = nullptr;
 	QPointer<CDockAreaWidget> FocusedArea = nullptr;
 	QPointer<CDockWidget> OldFocusedDockWidget = nullptr;
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
      QPointer<CFloatingDockContainer> FloatingWidget = nullptr;
 #endif
 	CDockManager* DockManager;
     bool ForceFocusChangedSignal = false;
+    bool TabPressed = false;
 
 	/**
 	 * Private data constructor
@@ -84,7 +85,7 @@ static void updateDockAreaFocusStyle(CDockAreaWidget* DockArea, bool Focused)
 
 
 //===========================================================================
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
 static void updateFloatingWidgetFocusStyle(CFloatingDockContainer* FloatingWidget, bool Focused)
 {
 	if (FloatingWidget->hasNativeTitleBar())
@@ -114,6 +115,7 @@ DockFocusControllerPrivate::DockFocusControllerPrivate(
 //============================================================================
 void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
 {
+	if (!DockWidget) return;
 	if (!DockWidget->features().testFlag(CDockWidget::DockWidgetFocusable))
 	{
 		return;
@@ -168,7 +170,7 @@ void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
     }
 
 
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
 	// This code is required for styling the floating widget titlebar for linux
 	// depending on the current focus state
 	if (FloatingWidget != NewFloatingWidget)
@@ -267,7 +269,9 @@ void CDockFocusController::onApplicationFocusChanged(QWidget* focusedOld, QWidge
 {
     Q_UNUSED(focusedOld);
 
-	if (d->DockManager->isRestoringState())
+    // Ignore focus changes if we are restoring state, or if user clicked
+    // a tab which in turn caused the focus change
+	if (d->DockManager->isRestoringState() || d->TabPressed)
 	{
 		return;
 	}
@@ -285,7 +289,7 @@ void CDockFocusController::onApplicationFocusChanged(QWidget* focusedOld, QWidge
 		DockWidget = internal::findParent<CDockWidget*>(focusedNow);
 	}
 
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
     if (!DockWidget)
 	{
 		return;
@@ -418,6 +422,12 @@ CDockWidget* CDockFocusController::focusedDockWidget() const
 	return d->FocusedDockWidget.data();
 }
 
+
+//==========================================================================
+void CDockFocusController::setDockWidgetTabPressed(bool Value)
+{
+	d->TabPressed = Value;
+}
 } // namespace ads
 
 //---------------------------------------------------------------------------

src/DockFocusController.h

@@ -80,6 +80,12 @@ public:
 	 */
 	void clearDockWidgetFocus(CDockWidget* dockWidget);
 
+	/**
+	 * Notifies the dock focus controller, that a the mouse is pressed or
+	 * released
+	 */
+	void setDockWidgetTabPressed(bool Value);
+
 public Q_SLOTS:
 	/**
 	 * Request a focus change to the given dock widget