Added all build* subfolders to .gitignore

.gitignore

@@ -9,7 +9,7 @@ ui_*
 Makefile
 *.dll
 *.a
-build-*
+build*
 
 # IDEs
 .idea

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.5)
-
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 if (POLICY CMP0091)
   cmake_policy(SET CMP0091 NEW)
 endif (POLICY CMP0091)

doc/user-guide.md

@@ -49,6 +49,7 @@
   - [`AutoHideCloseButtonCollapsesDock`](#autohideclosebuttoncollapsesdock)
   - [`AutoHideHasCloseButton`](#autohidehasclosebutton)
   - [`AutoHideHasMinimizeButton`](#autohidehasminimizebutton)
+  - [`AutoHideOpenOnDragHover`](#autohideopenondraghover)
 - [DockWidget Feature Flags](#dockwidget-feature-flags)
   - [`DockWidgetClosable`](#dockwidgetclosable)
   - [`DockWidgetMovable`](#dockwidgetmovable)
@@ -150,7 +151,7 @@ This ie enabled by default to minimize the size of the saved data.
 
 ### `TabCloseButtonIsToolButton`
 
-If enabled the tab close buttons will be `QToolButtons` instead of `QPushButtons` - 
+If enabled the tab close buttons will be `QToolButtons` instead of `QPushButtons` -
 disabled by default. Normally the default configuration should be ok but if your
 application requires `QToolButtons` instead of `QPushButtons` for styling reasons
 or for any other reasons, then you can enable this flag.
@@ -181,7 +182,7 @@ constant, that means, if enabled, the tabs need more space.
 
 ### `DragPreviewIsDynamic`
 
-If non-opaque undocking is enabled, this flag defines the behavior of the drag 
+If non-opaque undocking is enabled, this flag defines the behavior of the drag
 preview window. If this flag is enabled, then it will give the user the
 impression, that the floating drag preview is dynamically adjusted to the drop
 area. In order to give the perfect impression, you should disable the flags
@@ -197,7 +198,7 @@ CDockManager::setConfigFlag(CDockManager::DragPreviewHasWindowFrame, false);
 
 ### `DragPreviewShowsContentPixmap`
 
-If non-opaque undocking is enabled, the created drag preview window shows a 
+If non-opaque undocking is enabled, the created drag preview window shows a
 copy of the content of the dock widget / dock are that is dragged, if this
 flag is enabled (default).
 
@@ -210,7 +211,7 @@ like window without any content.
 
 ### `DragPreviewHasWindowFrame`
 
-If non-opaque undocking is enabled, then this flag configures if the drag 
+If non-opaque undocking is enabled, then this flag configures if the drag
 preview is frameless (default) or looks like a real window. If it is enabled,
 then the drag preview is a transparent window with a system window frame.
 
@@ -378,7 +379,7 @@ ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar
 
 If you have a content widget that does not support focussing for some reason
 (like `QVTKOpenGLStereoWidget` from the [VTK library](https://github.com/Kitware/VTK)),
-then you can manually switch the focus by reacting on mouse events. The 
+then you can manually switch the focus by reacting on mouse events. The
 following code shows, how to install en event filter on the `QVTKOpenGLStereoWidget`
 to properly switch the focus on `QEvent::MouseButtonPress`:
 
@@ -422,7 +423,7 @@ bool CMainWindow::eventFilter(QObject *watched, QEvent *event)
 ### `EqualSplitOnInsertion`
 
 This flag configures how the space is distributed if a new dock widget is
-inserted into an existing dock area. The flag is disabled by default. If 3 
+inserted into an existing dock area. The flag is disabled by default. If 3
 dock widgets are inserted with the following code
 
 ```c++
@@ -433,7 +434,7 @@ then this is the result, if the flag is disabled:
 
 ![EqualSplitOnInsertion false](cfg_flag_EqualSplitOnInsertion_false.png)
 
-If the flag is enabled, then the space is equally distributed to all widgets 
+If the flag is enabled, then the space is equally distributed to all widgets
 in a  splitter:
 
 ![EqualSplitOnInsertion true](cfg_flag_EqualSplitOnInsertion_true.png)
@@ -501,7 +502,7 @@ for active tabs. Inactive tabs only show their icon:
 
 The Advanced Docking System supports "Auto-Hide" functionality for **all**
 dock containers. The "Auto Hide" feature allows to display more information
-using less screen space by hiding or showing windows pinned to one of the 
+using less screen space by hiding or showing windows pinned to one of the
 four dock container borders.
 
 Enabling this feature adds a button with a pin icon to each dock area.
@@ -563,7 +564,7 @@ That means, you can drag them to a different border or sidebar:
 
 ### Auto-Hide Tab Sorting
 
-You can drag Auto-Hide tabs to a new position in the current sidebar 
+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)
@@ -632,7 +633,7 @@ the other Auto-Hide flags will be evaluated.
 
 ### `DockAreaHasAutoHideButton`
 
-If this flag is set (default), then each dock area has a pin button in the title 
+If this flag is set (default), then each dock area has a pin button in the title
 bar to toggle Auto-Hide state.
 
 ![DockAreaHasAutoHideButton true](cfg_flag_DockAreaHasAutoHideButton.png)
@@ -676,7 +677,7 @@ works if this feature is enabled.
 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). 
+the auto hide dock (collapsing the dock).
 
 ![AutoHideCloseButtonCollapsesDock false](cfg_flag_AutoHideCloseButtonCollapsesDock_false.gif)
 
@@ -704,6 +705,15 @@ If this flag is set (disabled by default), then each auto hide widget has a mini
 
 ![AutoHideHasMinimizeButton](cfg_flag_AutoHideHasMinimizeButton.png)
 
+
+### `AutoHideOpenOnDragHover`
+
+If this flag is set (disabled by default), then holding a dragging cursor hover an auto-hide collapsed dock's tab will open said dock:
+
+![AutoHideOpenOnDragHover](cfg_flag_AutoHideOpenOnDragHover.gif)
+
+Said dock must be set to accept drops to hide when cursor leaves its scope. See `AutoHideDragNDropExample` for more details.
+
 ## DockWidget Feature Flags
 
 ### `DockWidgetClosable`

examples/CMakeLists.txt

@@ -6,5 +6,6 @@ add_subdirectory(sidebar)
 add_subdirectory(deleteonclose)
 add_subdirectory(centralwidget)
 add_subdirectory(autohide)
+add_subdirectory(autohidedragndrop)
 add_subdirectory(emptydockarea)
-add_subdirectory(dockindock)
+add_subdirectory(dockindock)

examples/autohidedragndrop/CMakeLists.txt

@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.5)
+project(ads_example_autohide_dragndrop 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)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+add_executable(AutoHideDragNDropExample WIN32
+    main.cpp
+    mainwindow.cpp
+    mainwindow.ui
+    droppableitem.cpp
+)
+target_include_directories(AutoHideDragNDropExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
+target_link_libraries(AutoHideDragNDropExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
+target_link_libraries(AutoHideDragNDropExample PUBLIC Qt${QT_VERSION_MAJOR}::Core
+                                                  Qt${QT_VERSION_MAJOR}::Gui
+                                                  Qt${QT_VERSION_MAJOR}::Widgets)
+set_target_properties(AutoHideDragNDropExample PROPERTIES
+    AUTOMOC ON
+    AUTORCC ON
+    AUTOUIC ON
+    CXX_STANDARD 14
+    CXX_STANDARD_REQUIRED ON
+    CXX_EXTENSIONS OFF
+    VERSION ${VERSION_SHORT}
+    EXPORT_NAME "Qt Advanced Docking System Auto Hide With Drag N Drop Example"
+    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/bin"
+)

examples/autohidedragndrop/autohidedragndrop.pro

@@ -0,0 +1,36 @@
+ADS_OUT_ROOT = $${OUT_PWD}/../..
+
+QT       += core gui widgets
+
+TARGET = AutoHideDragNDropExample
+DESTDIR = $${ADS_OUT_ROOT}/lib
+TEMPLATE = app
+CONFIG += c++14
+CONFIG += debug_and_release
+adsBuildStatic {
+    DEFINES += ADS_STATIC
+}
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+SOURCES += \
+    main.cpp \
+    mainwindow.cpp \
+    droppableitem.cpp
+
+HEADERS += \
+    mainwindow.h \
+    droppableitem.h
+
+FORMS += \
+    mainwindow.ui
+
+LIBS += -L$${ADS_OUT_ROOT}/lib
+include(../../ads.pri)
+INCLUDEPATH += ../../src
+DEPENDPATH += ../../src
+

examples/autohidedragndrop/droppableitem.cpp

@@ -0,0 +1,38 @@
+#include "droppableitem.h"
+
+#include <QDragEnterEvent>
+#include <QDragLeaveEvent>
+#include <QDropEvent>
+#include <QMimeData>
+#include <qsizepolicy.h>
+
+DroppableItem::DroppableItem(const QString& text, QWidget* parent)
+    : QPushButton(text, parent)
+{
+    setAcceptDrops(true);
+    setSizePolicy(QSizePolicy::Policy::Expanding, QSizePolicy::Policy::Expanding);
+}
+
+void DroppableItem::dragEnterEvent(QDragEnterEvent* event)
+{
+    if (event->mimeData()->hasText())
+    {
+        event->acceptProposedAction();
+        setCursor(Qt::DragMoveCursor);
+    }
+}
+
+void DroppableItem::dragLeaveEvent(QDragLeaveEvent* event)
+{
+	Q_UNUSED(event);
+    unsetCursor();
+}
+
+void DroppableItem::dropEvent(QDropEvent* event)
+{
+    if (event->mimeData()->hasText())
+    {
+        event->acceptProposedAction();
+        setText(event->mimeData()->text());
+    }
+}

examples/autohidedragndrop/droppableitem.h

@@ -0,0 +1,19 @@
+#include <QObject>
+#include <QPushButton>
+
+class QDragEnterEvent;
+class QDragLeaveEvent;
+class QDropEvent;
+
+class DroppableItem : public QPushButton
+{
+    Q_OBJECT;
+
+public:
+    DroppableItem(const QString& text = QString(), QWidget* parent = nullptr);
+
+protected:
+    void dragEnterEvent(QDragEnterEvent* event) override;
+    void dragLeaveEvent(QDragLeaveEvent* event) override;
+    void dropEvent(QDropEvent* event) override;
+};

examples/autohidedragndrop/main.cpp

@@ -0,0 +1,10 @@
+#include <mainwindow.h>
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    CMainWindow w;
+    w.show();
+    return a.exec();
+}

examples/autohidedragndrop/main.py

@@ -0,0 +1,84 @@
+import os
+import sys
+
+from PyQt5 import uic
+from PyQt5.QtCore import Qt, QTimer, QDir, QSignalBlocker
+from PyQt5.QtGui import QCloseEvent, QIcon
+from PyQt5.QtWidgets import (QApplication, QLabel, QCalendarWidget, QFrame, QTreeView,
+                             QTableWidget, QFileSystemModel, QPlainTextEdit, QToolBar,
+                             QWidgetAction, QComboBox, QAction, QSizePolicy, QInputDialog)
+
+import PyQtAds as QtAds
+
+UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
+MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)
+
+class MainWindow(MainWindowUI, MainWindowBase):
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.setupUi(self)
+
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.OpaqueSplitterResize, True)
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.XmlCompressionEnabled, False)
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FocusHighlighting, True)
+        QtAds.CDockManager.setAutoHideConfigFlag(QtAds.CDockManager.AutoHideOpenOnDragHover, True);
+        self.dock_manager = QtAds.CDockManager(self)
+
+        # Set central widget
+        text_edit = QPlainTextEdit()
+        text_edit.setPlaceholderText("This is the central editor. Enter your text here.")
+        central_dock_widget = QtAds.CDockWidget("CentralWidget")
+        central_dock_widget.setWidget(text_edit)
+        central_dock_area = self.dock_manager.setCentralWidget(central_dock_widget)
+        central_dock_area.setAllowedAreas(QtAds.DockWidgetArea.OuterDockAreas)
+
+
+        droppable_item = DroppableItem("Drop text here.")
+        drop_dock_widget = QtAds.CDockWidget("Tab")
+        drop_dock_widget.setWidget(droppable_item)
+        drop_dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromDockWidget)
+        drop_dock_widget.setMinimumSize(200, 150)
+        drop_dock_widget.setAcceptDrops(True)
+        drop_area = self.dock_manager.addDockWidget(QtAds.DockWidgetArea.LeftDockWidgetArea, drop_dock_widget)
+        drop_area.setAcceptDrops(True)
+        self.menuView.addAction(drop_dock_widget.toggleViewAction())
+
+        self.create_perspective_ui()
+
+    def create_perspective_ui(self):
+        save_perspective_action = QAction("Create Perspective", self)
+        save_perspective_action.triggered.connect(self.save_perspective)
+        perspective_list_action = QWidgetAction(self)
+        self.perspective_combobox = QComboBox(self)
+        self.perspective_combobox.setSizeAdjustPolicy(QComboBox.AdjustToContents)
+        self.perspective_combobox.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
+        self.perspective_combobox.activated[str].connect(self.dock_manager.openPerspective)
+        perspective_list_action.setDefaultWidget(self.perspective_combobox)
+        self.toolBar.addSeparator()
+        self.toolBar.addAction(perspective_list_action)
+        self.toolBar.addAction(save_perspective_action)
+
+    def save_perspective(self):
+        perspective_name, ok = QInputDialog.getText(self, "Save Perspective", "Enter Unique name:")
+        if not ok or not perspective_name:
+            return
+
+        self.dock_manager.addPerspective(perspective_name)
+        blocker = QSignalBlocker(self.perspective_combobox)
+        self.perspective_combobox.clear()
+        self.perspective_combobox.addItems(self.dock_manager.perspectiveNames())
+        self.perspective_combobox.setCurrentText(perspective_name)
+
+    def closeEvent(self, event: QCloseEvent):
+        self.dock_manager.deleteLater()
+        super().closeEvent(event)
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+
+    w = MainWindow()
+    w.show()
+    app.exec_()

examples/autohidedragndrop/mainwindow.cpp

@@ -0,0 +1,131 @@
+#include "mainwindow.h"
+#include "droppableitem.h"
+
+#include "ui_mainwindow.h"
+
+#include <QWidgetAction>
+#include <QFileSystemModel>
+#include <QTableWidget>
+#include <QHBoxLayout>
+#include <QInputDialog>
+#include <QFileDialog>
+#include <QSettings>
+#include <QPlainTextEdit>
+#include <QToolBar>
+
+#include "AutoHideDockContainer.h"
+#include "DockAreaWidget.h"
+#include "DockAreaTitleBar.h"
+
+using namespace ads;
+
+CMainWindow::CMainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::CMainWindow)
+{
+    ui->setupUi(this);
+    CDockManager::setConfigFlag(CDockManager::OpaqueSplitterResize, true);
+    CDockManager::setConfigFlag(CDockManager::XmlCompressionEnabled, false);
+    CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+    CDockManager::setAutoHideConfigFlags(CDockManager::DefaultAutoHideConfig);
+    CDockManager::setAutoHideConfigFlag(CDockManager::AutoHideOpenOnDragHover, true);
+    CDockManager::setConfigParam(CDockManager::AutoHideOpenOnDragHoverDelay_ms, 500);
+    DockManager = new CDockManager(this);
+
+    // Set central widget
+    QPlainTextEdit* w = new QPlainTextEdit();
+	w->setPlaceholderText("This is the central editor. Enter your text here.");
+    CDockWidget* CentralDockWidget = new CDockWidget("CentralWidget");
+    CentralDockWidget->setWidget(w);
+    auto* CentralDockArea = DockManager->setCentralWidget(CentralDockWidget);
+    CentralDockArea->setAllowedAreas(DockWidgetArea::OuterDockAreas);
+
+    {
+    	DroppableItem* droppableItem = new DroppableItem("Drop text here.");
+		CDockWidget* dropDockWidget = new CDockWidget("Tab 1");
+		dropDockWidget->setWidget(droppableItem);
+		dropDockWidget->setMinimumSizeHintMode(CDockWidget::MinimumSizeHintFromDockWidget);
+		dropDockWidget->setMinimumSize(200,150);
+		dropDockWidget->setAcceptDrops(true);
+		const auto autoHideContainer = DockManager->addAutoHideDockWidget(SideBarLocation::SideBarLeft, dropDockWidget);
+		autoHideContainer->setSize(480);
+		autoHideContainer->setAcceptDrops(true);
+		ui->menuView->addAction(dropDockWidget->toggleViewAction());
+    }
+    {
+    	DroppableItem* droppableItem = new DroppableItem("Drop text here.");
+		CDockWidget* dropDockWidget = new CDockWidget("Tab 2");
+		dropDockWidget->setWidget(droppableItem);
+		dropDockWidget->setMinimumSizeHintMode(CDockWidget::MinimumSizeHintFromDockWidget);
+		dropDockWidget->setMinimumSize(200,150);
+		dropDockWidget->setAcceptDrops(true);
+		const auto autoHideContainer = DockManager->addAutoHideDockWidget(SideBarLocation::SideBarRight, dropDockWidget);
+		autoHideContainer->setSize(480);
+		autoHideContainer->setAcceptDrops(true);
+		ui->menuView->addAction(dropDockWidget->toggleViewAction());
+    }
+
+    QTableWidget* propertiesTable = new QTableWidget();
+    propertiesTable->setColumnCount(3);
+    propertiesTable->setRowCount(10);
+    CDockWidget* PropertiesDockWidget = new CDockWidget("Properties");
+    PropertiesDockWidget->setWidget(propertiesTable);
+    PropertiesDockWidget->setMinimumSizeHintMode(CDockWidget::MinimumSizeHintFromDockWidget);
+    PropertiesDockWidget->resize(250, 150);
+    PropertiesDockWidget->setMinimumSize(200,150);
+    DockManager->addDockWidget(DockWidgetArea::RightDockWidgetArea, PropertiesDockWidget, CentralDockArea);
+    ui->menuView->addAction(PropertiesDockWidget->toggleViewAction());
+
+    createPerspectiveUi();
+}
+
+CMainWindow::~CMainWindow()
+{
+    delete ui;
+}
+
+
+void CMainWindow::createPerspectiveUi()
+{
+	SavePerspectiveAction = new QAction("Create Perspective", this);
+	connect(SavePerspectiveAction, SIGNAL(triggered()), SLOT(savePerspective()));
+	PerspectiveListAction = new QWidgetAction(this);
+	PerspectiveComboBox = new QComboBox(this);
+	PerspectiveComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
+	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+	connect(PerspectiveComboBox, SIGNAL(currentTextChanged(const QString&)),
+		DockManager, SLOT(openPerspective(const QString&)));
+	PerspectiveListAction->setDefaultWidget(PerspectiveComboBox);
+	ui->toolBar->addSeparator();
+	ui->toolBar->addAction(PerspectiveListAction);
+	ui->toolBar->addAction(SavePerspectiveAction);
+}
+
+
+void CMainWindow::savePerspective()
+{
+	QString PerspectiveName = QInputDialog::getText(this, "Save Perspective", "Enter unique name:");
+	if (PerspectiveName.isEmpty())
+	{
+		return;
+	}
+
+	DockManager->addPerspective(PerspectiveName);
+	QSignalBlocker Blocker(PerspectiveComboBox);
+	PerspectiveComboBox->clear();
+	PerspectiveComboBox->addItems(DockManager->perspectiveNames());
+	PerspectiveComboBox->setCurrentText(PerspectiveName);
+}
+
+
+//============================================================================
+void CMainWindow::closeEvent(QCloseEvent* event)
+{
+    // Delete dock manager here to delete all floating widgets. This ensures
+    // that all top level windows of the dock manager are properly closed
+    DockManager->deleteLater();
+	QMainWindow::closeEvent(event);
+}
+
+
+

examples/autohidedragndrop/mainwindow.h

@@ -0,0 +1,43 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QComboBox>
+#include <QWidgetAction>
+
+#include "DockManager.h"
+#include "DockAreaWidget.h"
+#include "DockWidget.h"
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class CMainWindow; }
+QT_END_NAMESPACE
+
+class CMainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    CMainWindow(QWidget *parent = nullptr);
+    ~CMainWindow();
+
+protected:
+	virtual void closeEvent(QCloseEvent* event) override;
+
+private:
+	QAction* SavePerspectiveAction = nullptr;
+	QWidgetAction* PerspectiveListAction = nullptr;
+	QComboBox* PerspectiveComboBox = nullptr;
+
+    Ui::CMainWindow *ui;
+
+    ads::CDockManager* DockManager;
+    ads::CDockAreaWidget* StatusDockArea;
+    ads::CDockWidget* TimelineDockWidget;
+
+    void createPerspectiveUi();
+
+private slots:
+	void savePerspective();
+};
+#endif // MAINWINDOW_H

examples/autohidedragndrop/mainwindow.ui

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CMainWindow</class>
+ <widget class="QMainWindow" name="CMainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1284</width>
+    <height>757</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget"/>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1284</width>
+     <height>21</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuView">
+    <property name="title">
+     <string>View</string>
+    </property>
+   </widget>
+   <addaction name="menuView"/>
+  </widget>
+  <widget class="QToolBar" name="toolBar">
+   <property name="windowTitle">
+    <string>toolBar</string>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

examples/examples.pro

@@ -2,6 +2,7 @@ TEMPLATE = subdirs
 
 SUBDIRS = \
     autohide \
+	autohidedragndrop \
     centralwidget \
 	simple \
 	hideshow \

src/AutoHideDockContainer.cpp

@@ -657,6 +657,14 @@ bool CAutoHideDockContainer::event(QEvent* event)
 	return Super::event(event);
 }
 
+//============================================================================
+void CAutoHideDockContainer::dragLeaveEvent(QDragLeaveEvent*)
+{
+    if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideOpenOnDragHover))
+    {
+        collapseView(true);
+    }
+}
 
 //============================================================================
 Qt::Orientation CAutoHideDockContainer::orientation() const
@@ -709,4 +717,3 @@ int CAutoHideDockContainer::tabIndex() const
 }
 
 }
-

src/AutoHideDockContainer.h

@@ -65,6 +65,7 @@ protected:
 	virtual void resizeEvent(QResizeEvent* event) override;
 	virtual void leaveEvent(QEvent *event) override;
 	virtual bool event(QEvent* event) override;
+    virtual void dragLeaveEvent(QDragLeaveEvent* ev) override;
 
 	/**
 	 * Updates the size considering the size limits and the resize margins
@@ -139,7 +140,7 @@ public:
 
 	/**
 	 * Moves the contents to the parent container widget
-	 * Used before removing this Auto Hide dock container 
+	 * Used before removing this Auto Hide dock container
 	 */
     void moveContentsToParent();
 

src/AutoHideTab.cpp

@@ -33,6 +33,8 @@
 #include <QApplication>
 #include <QElapsedTimer>
 #include <QMenu>
+#include <QEvent>
+#include <QTimer>
 
 #include "AutoHideDockContainer.h"
 #include "AutoHideSideBar.h"
@@ -41,6 +43,7 @@
 #include "DockWidget.h"
 #include "FloatingDragPreview.h"
 #include "DockOverlay.h"
+#include "ads_globals.h"
 
 namespace ads
 {
@@ -55,6 +58,7 @@ struct AutoHideTabPrivate
     CAutoHideSideBar* SideBar = nullptr;
 	Qt::Orientation Orientation{Qt::Vertical};
 	QElapsedTimer TimeSinceHoverMousePress;
+	QTimer DragOverTimer;
 	bool MousePressed = false;
 	eDragState DragState = DraggingInactive;
 	QPoint GlobalDragStartMousePosition;
@@ -252,6 +256,14 @@ CAutoHideTab::CAutoHideTab(QWidget* parent) :
 {
 	setAttribute(Qt::WA_NoMousePropagation);
 	setFocusPolicy(Qt::NoFocus);
+    if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideOpenOnDragHover)) {
+        setAcceptDrops(true);
+    }
+
+    d->DragOverTimer.setInterval(CDockManager::configParam(
+    	CDockManager::AutoHideOpenOnDragHoverDelay_ms, 500).toInt());
+    d->DragOverTimer.setSingleShot(true);
+	connect(&d->DragOverTimer, &QTimer::timeout, this, &CAutoHideTab::onDragHoverDelayExpired);
 }
 
 
@@ -355,7 +367,6 @@ bool CAutoHideTab::event(QEvent* event)
 	case QEvent::Leave:
 		 d->forwardEventToDockContainer(event);
 		 break;
-
 	default:
 		break;
 	}
@@ -493,48 +504,74 @@ void CAutoHideTab::mouseReleaseEvent(QMouseEvent* ev)
 
 
 //============================================================================
-void CAutoHideTab::mouseMoveEvent(QMouseEvent* 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)
+	if (!(ev->buttons() & Qt::LeftButton)
+	    || d->isDraggingState(DraggingInactive))
 	{
-    	// 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;
+		d->DragState = DraggingInactive;
+		Super::mouseMoveEvent(ev);
+		return;
 	}
 
-    Super::mouseMoveEvent(ev);
+	// 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::dragEnterEvent(QDragEnterEvent *ev)
+{
+	Q_UNUSED(ev);
+	if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideOpenOnDragHover))
+	{
+		d->DragOverTimer.start();
+		ev->accept();
+	}
+}
+
+//============================================================================
+void CAutoHideTab::dragLeaveEvent(QDragLeaveEvent *ev)
+{
+	Q_UNUSED(ev);
+	if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideOpenOnDragHover))
+	{
+		d->DragOverTimer.stop();
+	}
 }
 
 
@@ -544,7 +581,6 @@ void CAutoHideTab::requestCloseDockWidget()
 	d->DockWidget->requestCloseDockWidget();
 }
 
-
 //============================================================================
 int CAutoHideTab::tabIndex() const
 {
@@ -557,4 +593,28 @@ int CAutoHideTab::tabIndex() const
 }
 
 
+//============================================================================
+void CAutoHideTab::onDragHoverDelayExpired()
+{
+	static const char* const PropertyId = "ActiveDragOverAutoHideContainer";
+
+	// First we check if there is an active auto hide container that is visible
+	// In this case, we collapse it before we open the new one
+	auto v = d->DockWidget->dockManager()->property(PropertyId);
+	if (v.isValid())
+	{
+		auto ActiveAutoHideContainer = v.value<QPointer<CAutoHideDockContainer>>();
+		if (ActiveAutoHideContainer)
+		{
+			ActiveAutoHideContainer->collapseView(true);
+		}
+	}
+
+	auto AutoHideContainer = d->DockWidget->autoHideDockContainer();
+	AutoHideContainer->collapseView(false);
+	d->DockWidget->dockManager()->setProperty(PropertyId,
+		QVariant::fromValue(QPointer(AutoHideContainer)));
+}
+
+
 }

src/AutoHideTab.h

@@ -55,7 +55,7 @@ class ADS_EXPORT CAutoHideTab : public CPushButton
 	Q_PROPERTY(bool activeTab READ isActiveTab)
 	Q_PROPERTY(bool iconOnly READ iconOnly)
 
-private:    
+private:
 	AutoHideTabPrivate* d; ///< private data (pimpl)
     friend struct AutoHideTabPrivate;
 	friend class CDockWidget;
@@ -67,6 +67,7 @@ private:
 
 private Q_SLOTS:
 	void onAutoHideToActionClicked();
+	void onDragHoverDelayExpired();
 
 protected:
 	void setSideBar(CAutoHideSideBar *SideTabBar);
@@ -76,6 +77,8 @@ protected:
 	virtual void mousePressEvent(QMouseEvent* ev) override;
 	virtual void mouseReleaseEvent(QMouseEvent* ev) override;
 	virtual void mouseMoveEvent(QMouseEvent* ev) override;
+    virtual void dragEnterEvent(QDragEnterEvent* ev) override;
+    virtual void dragLeaveEvent(QDragLeaveEvent* ev) override;
 
 public:
     using Super = CPushButton;

src/DockAreaTabBar.cpp

@@ -473,6 +473,15 @@ bool CDockAreaTabBar::eventFilter(QObject *watched, QEvent *event)
          updateGeometry();
          break;
 
+    // Manage wheel event
+    case QEvent::Wheel:
+    	// Ignore wheel events if tab is currently dragged
+    	if (Tab->dragState() == DraggingInactive)
+    	{
+    		wheelEvent((QWheelEvent* )event);
+    	}
+        break;
+
 	default:
 		break;
 	}

src/DockAreaWidget.cpp

@@ -34,7 +34,6 @@
 
 #include <QStackedLayout>
 #include <QScrollBar>
-#include <QWheelEvent>
 #include <QStyle>
 #include <QPushButton>
 #include <QDebug>

src/DockManager.cpp

@@ -48,6 +48,7 @@
 #include <QApplication>
 #include <QWindow>
 #include <QWindowStateChangeEvent>
+#include <QVector>
 
 #include "FloatingDockContainer.h"
 #include "DockOverlay.h"
@@ -94,6 +95,7 @@ enum eStateFileVersion
 
 static CDockManager::ConfigFlags StaticConfigFlags = CDockManager::DefaultNonOpaqueConfig;
 static CDockManager::AutoHideFlags StaticAutoHideConfigFlags; // auto hide feature is disabled by default
+static QVector<QVariant> StaticConfigParams(CDockManager::ConfigParamCount);
 
 static QString FloatingContainersTitle;
 
@@ -1475,6 +1477,20 @@ CDockWidget::DockWidgetFeatures CDockManager::globallyLockedDockWidgetFeatures()
 }
 
 
+//===========================================================================
+void CDockManager::setConfigParam(CDockManager::eConfigParam Param, QVariant Value)
+{
+	StaticConfigParams[Param] = Value;
+}
+
+
+//===========================================================================
+QVariant CDockManager::configParam(eConfigParam Param, QVariant Default)
+{
+	return StaticConfigParams[Param].isValid() ? StaticConfigParams[Param] : Default;
+}
+
+
 } // namespace ads
 
 //---------------------------------------------------------------------------

src/DockManager.h

@@ -254,6 +254,7 @@ public:
 		AutoHideCloseButtonCollapsesDock = 0x40, ///< Close button of an auto hide container collapses the dock instead of hiding it completely
 		AutoHideHasCloseButton = 0x80, //< If the flag is set an auto hide title bar has a close button
 		AutoHideHasMinimizeButton = 0x100, ///< if this flag is set, the auto hide title bar has a minimize button to collapse the dock widget
+        AutoHideOpenOnDragHover = 0x200,  ///< if this flag is set, dragging hover the tab bar will open the dock
 
 		DefaultAutoHideConfig = AutoHideFeatureEnabled
 			                  | DockAreaHasAutoHideButton
@@ -262,6 +263,15 @@ public:
 	};
     Q_DECLARE_FLAGS(AutoHideFlags, eAutoHideFlag)
 
+	/**
+	 * Global configuration parameters that you can set via setConfigParam()
+	 */
+	enum eConfigParam
+	{
+    	AutoHideOpenOnDragHoverDelay_ms, ///< Delay in ms before the dock opens on drag hover if AutoHideOpenOnDragHover flag is set
+    	ConfigParamCount // just a delimiter to count number of config params
+	};
+
 
 	/**
 	 * Default Constructor.
@@ -323,6 +333,17 @@ public:
 	 */
 	static bool testAutoHideConfigFlag(eAutoHideFlag Flag);
 
+	/**
+	 * Sets the value for the given config parameter
+	 */
+	static void setConfigParam(eConfigParam Param, QVariant Value);
+
+	/**
+	 * Returns the value for the given config parameter or the default value
+	 * if the parameter is not set.
+	 */
+	static QVariant configParam(eConfigParam Param, QVariant Default);
+
 	/**
 	 * Returns the global icon provider.
 	 * The icon provider enables the use of custom icons in case using

src/DockWidgetTab.cpp

@@ -789,6 +789,13 @@ bool CDockWidgetTab::event(QEvent *e)
 }
 
 
+//============================================================================
+eDragState CDockWidgetTab::dragState() const
+{
+	return d->DragState;
+}
+
+
 //============================================================================
 void CDockWidgetTab::onDockWidgetFeaturesChanged()
 {

src/DockWidgetTab.h

@@ -178,6 +178,12 @@ public:
 	 */
 	void setIconSize(const QSize& Size);
 
+	/**
+	 * Returns the current drag state of this tab.
+	 * Use this function to determine if the tab is currently being dragged
+	 */
+	eDragState dragState() const;
+
 public Q_SLOTS:
 	virtual void setVisible(bool visible) override;
 

src/FloatingDockContainer.h

@@ -131,15 +131,6 @@ protected:
 	virtual void startFloating(const QPoint& DragStartMousePos, const QSize& Size,
         eDragState DragState, QWidget* MouseEventHandler) override;
 
-	/**
-	 * Call this function to start dragging the floating widget
-	 */
-    void startDragging(const QPoint& DragStartMousePos, const QSize& Size,
-        QWidget* MouseEventHandler)
-	{
-        startFloating(DragStartMousePos, Size, DraggingFloatingWidget, MouseEventHandler);
-	}
-
 	/**
 	 * Call this function if you explicitly want to signal that dragging has
 	 * finished
@@ -149,7 +140,7 @@ protected:
 	/**
 	 * This function deletes all dock widgets in it.
 	 * This functions should be called only from dock manager in its
-	 * destructor before deleting the floating widget
+	 * destructor before deleting the floating widget
      */
 	void deleteContent();
 
@@ -236,6 +227,15 @@ public:
 	 */
 	CDockContainerWidget* dockContainer() const;
 
+	/**
+	 * Call this function to start dragging the floating widget
+	 */
+    void startDragging(const QPoint& DragStartMousePos, const QSize& Size,
+        QWidget* MouseEventHandler)
+	{
+        startFloating(DragStartMousePos, Size, DraggingFloatingWidget, MouseEventHandler);
+	}
+
 	/**
 	 * This function returns true, if it can be closed.
 	 * It can be closed, if all dock widgets in all dock areas can be closed