Fixed tab insertion when dragging side tab

src/AutoHideDockContainer.cpp

@@ -232,7 +232,6 @@ CAutoHideDockContainer::CAutoHideDockContainer(CDockWidget* DockWidget, SideBarL
 //============================================================================
 void CAutoHideDockContainer::updateSize()
 {
-	qDebug() << "CAutoHideDockContainer::updateSize()";
 	auto dockContainerParent = dockContainer();
 	if (!dockContainerParent)
 	{
@@ -692,7 +691,9 @@ void CAutoHideDockContainer::resetToInitialDockWidgetSize()
 void CAutoHideDockContainer::moveToNewSideBarLocation(SideBarLocation NewSideBarLocation,
 	int TabIndex)
 {
-	if (NewSideBarLocation == sideBarLocation())
+	qDebug() << "CAutoHideDockContainer::moveToNewSideBarLocation TabIndex " <<
+		TabIndex << " this->tabIndex: " << this->tabIndex();
+	if (NewSideBarLocation == sideBarLocation() && TabIndex == this->tabIndex())
 	{
 		return;
 	}
@@ -709,5 +710,12 @@ void CAutoHideDockContainer::moveToNewSideBarLocation(SideBarLocation NewSideBar
 	}
 }
 
+
+//============================================================================
+int CAutoHideDockContainer::tabIndex() const
+{
+	return d->SideTab->tabIndex();
+}
+
 }
 

src/AutoHideDockContainer.h

@@ -105,6 +105,11 @@ public:
 	 */
 	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
 	 */

src/AutoHideSideBar.cpp

@@ -234,12 +234,24 @@ void CAutoHideSideBar::removeAutoHideWidget(CAutoHideDockContainer* AutoHideWidg
 
 //============================================================================
 void CAutoHideSideBar::addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget,
-	int Index)
+	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)
@@ -249,7 +261,7 @@ void CAutoHideSideBar::addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget,
 	AutoHideWidget->setParent(d->ContainerWidget);
 	AutoHideWidget->setSideBarLocation(d->SideTabArea);
 	d->ContainerWidget->registerAutoHideWidget(AutoHideWidget);
-	insertTab(Index, AutoHideWidget->autoHideTab());
+	insertTab(TabIndex, AutoHideWidget->autoHideTab());
 }
 
 
@@ -349,6 +361,21 @@ bool CAutoHideSideBar::hasVisibleTabs() const
 }
 
 
+//============================================================================
+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
 {
@@ -424,13 +451,24 @@ int CAutoHideSideBar::tabAt(const QPoint& Pos) const
 {
 	if (!isVisible())
 	{
-		return -2;
+		return InvalidTabIndex;
 	}
 
-	if (Pos.x() < tab(0)->geometry().x())
+	if (orientation() == Qt::Horizontal)
 	{
-		return -1;
+		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)
 	{
@@ -448,7 +486,14 @@ int CAutoHideSideBar::tabAt(const QPoint& Pos) const
 int CAutoHideSideBar::tabInsertIndexAt(const QPoint& Pos) const
 {
 	int Index = tabAt(Pos);
-	return (Index < 0) ? -1 : Index;
+	if (Index == InvalidTabIndex)
+	{
+		return Append;
+	}
+	else
+	{
+		return (Index < 0) ? 0 : Index;
+	}
 }
 
 } // namespace ads

src/AutoHideSideBar.h

@@ -84,6 +84,8 @@ protected:
 
 public:
     using Super = QScrollArea;
+    static constexpr int Append = -1;
+    static constexpr int InvalidTabIndex = -2;
 
 	/**
 	 * Default Constructor
@@ -117,7 +119,7 @@ public:
 	 * If the AutoHideWidget is in another sidebar, then it will be removed
 	 * from this sidebar.
 	 */
-	void addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget, int Index = -1);
+	void addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget, int Index = Append);
 
 	/**
 	 * Returns orientation of side tab.
@@ -125,15 +127,15 @@ 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* 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.
+	 * position is right of the last tab. Returns InvalidTabIndex (-2) to
+	 * indicate an invalid value.
 	 */
 	int tabAt(const QPoint& Pos) const;
 
@@ -142,6 +144,11 @@ public:
 	 */
 	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
 	 */

src/AutoHideTab.cpp

@@ -546,4 +546,16 @@ void CAutoHideTab::requestCloseDockWidget()
 }
 
 
+//============================================================================
+int CAutoHideTab::tabIndex() const
+{
+	if (!d->SideBar)
+	{
+		return -1;
+	}
+
+	return d->SideBar->indexOfTab(*this);
+}
+
+
 }

src/AutoHideTab.h

@@ -140,6 +140,11 @@ public:
 	 */
 	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

src/DockAreaTitleBar.cpp

@@ -260,7 +260,6 @@ void DockAreaTitleBarPrivate::createTabBar()
 //============================================================================
 IFloatingWidget* DockAreaTitleBarPrivate::makeAreaFloating(const QPoint& Offset, eDragState DragState)
 {
-	qDebug() << "DockAreaTitleBarPrivate::makeAreaFloating " <<  DockArea->size();
 	QSize Size = DockArea->size();
 	this->DragState = DragState;
 	bool CreateFloatingDockContainer = (DraggingFloatingWidget != DragState);

src/DockContainerWidget.cpp

@@ -523,12 +523,13 @@ void DockContainerWidgetPrivate::dropIntoAutoHideSideBar(CFloatingDockContainer*
 	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);
+			_this->createAndSetupAutoHideContainer(SideBarLocation, DockWidget, TabIndex++);
 		}
 	}
 }
@@ -574,7 +575,6 @@ void DockContainerWidgetPrivate::dropIntoCenterOfSection(
 void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* FloatingWidget,
 		CDockAreaWidget* TargetArea, DockWidgetArea area, int TabIndex)
 {
-	qDebug() << "DockContainerWidgetPrivate::dropIntoSection TabIndex: " << TabIndex;
 	// Dropping into center means all dock widgets in the dropped floating
 	// widget will become tabs of the drop area
 	if (CenterDockWidgetArea == area)
@@ -672,8 +672,6 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
 void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockAreaWidget* TargetArea,
 	int TabIndex)
 {
-	qDebug() << "DockContainerWidgetPrivate::moveIntoCenterOfSection TabIndex: "
-		<< TabIndex;
 	auto DroppedDockWidget = qobject_cast<CDockWidget*>(Widget);
 	auto DroppedArea = qobject_cast<CDockAreaWidget*>(Widget);
 
@@ -715,8 +713,6 @@ void DockContainerWidgetPrivate::moveIntoCenterOfSection(QWidget* Widget, CDockA
 void DockContainerWidgetPrivate::moveToNewSection(QWidget* Widget, CDockAreaWidget* TargetArea, DockWidgetArea area,
 	int TabIndex)
 {
-	qDebug() << "DockContainerWidgetPrivate::moveToNewSection TabIndex: "
-		<< TabIndex;
 	// Dropping into center means all dock widgets in the dropped floating
 	// widget will become tabs of the drop area
 	if (CenterDockWidgetArea == area)
@@ -1707,7 +1703,6 @@ int CDockContainerWidget::visibleDockAreaCount() const
 void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWidget,
 	const QPoint& TargetPos)
 {
-	//dockContainer()->createAndSetupAutoHideContainer(area, this);
     ADS_PRINT("CDockContainerWidget::dropFloatingWidget");
 	CDockWidget* SingleDroppedDockWidget = FloatingWidget->topLevelDockWidget();
 	CDockWidget* SingleDockWidget = topLevelDockWidget();
@@ -1716,6 +1711,7 @@ void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWi
 	bool Dropped = false;
 
 	CDockAreaWidget* DockArea = dockAreaAt(TargetPos);
+	// mouse is over dock area
 	if (DockArea)
 	{
 		auto dropOverlay = d->DockManager->dockAreaOverlay();
@@ -1736,7 +1732,7 @@ void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWi
 		}
 	}
 
-	// mouse is over container
+	// mouse is over container or auto hide side bar
 	if (InvalidDockWidgetArea == dropArea && InvalidDockWidgetArea != ContainerDropArea)
 	{
         if (internal::isSideBarArea(ContainerDropArea))

src/DockOverlay.cpp

@@ -506,7 +506,6 @@ DockWidgetArea CDockOverlay::dropAreaUnderCursor() const
 			if (SideBar->isVisible())
 			{
 				d->TabIndex = SideBar->tabInsertIndexAt(SideBar->mapFromGlobal(CursorPos));
-				qDebug() << "TabIndex " << d->TabIndex;
 			}
 		}
 		return Result;
@@ -522,7 +521,6 @@ DockWidgetArea CDockOverlay::dropAreaUnderCursor() const
 	{
 		auto TabBar = DockArea->titleBar()->tabBar();
 		d->TabIndex = TabBar->tabAt(TabBar->mapFromGlobal(CursorPos));
-		qDebug() << "TabIndex " << d->TabIndex;
 		return CenterDockWidgetArea;
 	}