Add Bottom side bar

src/DockContainerWidget.cpp

@@ -1444,6 +1444,7 @@ CDockContainerWidget::CDockContainerWidget(CDockManager* DockManager, QWidget *p
 	d->Layout->setContentsMargins(0, 0, 0, 0);
 	d->Layout->setSpacing(0);
 	d->Layout->setColumnStretch(1, 1);
+	d->Layout->setRowStretch(0, 1);
 	setLayout(d->Layout);
 
 	// The function d->newSplitter() accesses the config flags from dock
@@ -1524,8 +1525,24 @@ COverlayDockContainer* CDockContainerWidget::createAndInitializeDockWidgetOverla
 //============================================================================
 CDockWidgetSideTab::SideTabBarArea CDockContainerWidget::getDockAreaPosition(CDockAreaWidget* DockAreaWidget)
 {
-	const auto dockWidgetCenter = DockAreaWidget->mapToGlobal(DockAreaWidget->frameGeometry().center());
+	// Handle bottom case
+	// It's bottom if the width is wider than the height, and if it's below 50% of the window
+	const auto dockWidgetFrameGeometry = DockAreaWidget->frameGeometry();
 	const auto splitterCenter = rootSplitter()->mapToGlobal(rootSplitter()->frameGeometry().center());
+	const auto a = dockWidgetFrameGeometry.width();
+    const auto b = dockWidgetFrameGeometry.height();
+	const auto c = DockAreaWidget->mapToGlobal(dockWidgetFrameGeometry.topLeft()).y();
+    const auto d = splitterCenter.y();
+	const auto e =  CDockManager::testConfigFlag(CDockManager::DockContainerHasBottomSideBar);
+	if (dockWidgetFrameGeometry.width() > dockWidgetFrameGeometry.height() 
+		&& DockAreaWidget->mapToGlobal(dockWidgetFrameGeometry.topLeft()).y() > splitterCenter.y()
+		&& CDockManager::testConfigFlag(CDockManager::DockContainerHasBottomSideBar))
+	{
+        return CDockWidgetSideTab::Bottom;
+	}
+
+	// Then handle left and right
+	const auto dockWidgetCenter = DockAreaWidget->mapToGlobal(dockWidgetFrameGeometry.center());
 	const auto calculatedPosition = dockWidgetCenter.x() <= splitterCenter.x() ? CDockWidgetSideTab::Left : CDockWidgetSideTab::Right;
 	if (calculatedPosition == CDockWidgetSideTab::Right)
 	{
@@ -1534,7 +1551,12 @@ CDockWidgetSideTab::SideTabBarArea CDockContainerWidget::getDockAreaPosition(CDo
             return CDockWidgetSideTab::Right;
         }
 
-		return CDockWidgetSideTab::Left;
+		if (CDockManager::testConfigFlag(CDockManager::DockContainerHasLeftSideBar))
+		{
+            return CDockWidgetSideTab::Left;
+		}
+
+		return CDockWidgetSideTab::Bottom;
 	}
 
     if (calculatedPosition == CDockWidgetSideTab::Left)
@@ -1543,9 +1565,16 @@ CDockWidgetSideTab::SideTabBarArea CDockContainerWidget::getDockAreaPosition(CDo
 		{
             return CDockWidgetSideTab::Left;
 		}
-		return CDockWidgetSideTab::Right;
+
+		if (CDockManager::testConfigFlag(CDockManager::DockContainerHasRightSideBar))
+		{
+            return CDockWidgetSideTab::Right;
+		}
+
+		return CDockWidgetSideTab::Bottom;
 	}
 
+	Q_ASSERT_X(false, "CDockContainerWidget::getDockAreaPosition", "Unhandled branch. All positions should be accounted for.");
 	return CDockWidgetSideTab::Left;
 
 }
@@ -2026,15 +2055,21 @@ void CDockContainerWidget::createSideTabBarWidgets()
 {
 	if (CDockManager::testConfigFlag(CDockManager::DockContainerHasLeftSideBar))
 	{
-        d->SideTabBarWidgets[CDockWidgetSideTab::Left] = new CSideTabBar(this);
+        d->SideTabBarWidgets[CDockWidgetSideTab::Left] = new CSideTabBar(this, Qt::Vertical);
         d->Layout->addWidget(d->SideTabBarWidgets[CDockWidgetSideTab::Left], 0, 0);
 	}
 
 	if (CDockManager::testConfigFlag(CDockManager::DockContainerHasRightSideBar))
 	{
-        d->SideTabBarWidgets[CDockWidgetSideTab::Right] = new CSideTabBar(this);
+        d->SideTabBarWidgets[CDockWidgetSideTab::Right] = new CSideTabBar(this, Qt::Vertical);
         d->Layout->addWidget(d->SideTabBarWidgets[CDockWidgetSideTab::Right], 0, 2);
 	}
+
+	if (CDockManager::testConfigFlag(CDockManager::DockContainerHasBottomSideBar))
+	{
+        d->SideTabBarWidgets[CDockWidgetSideTab::Bottom] = new CSideTabBar(this, Qt::Horizontal);
+        d->Layout->addWidget(d->SideTabBarWidgets[CDockWidgetSideTab::Bottom], 1, 1);
+	}
 }
 
 

src/DockManager.h

@@ -228,13 +228,16 @@ public:
 	{
 		DockContainerHasLeftSideBar = 0x01, //!< If the flag is set left side bar will prioritize showing icons only over text
 		DockContainerHasRightSideBar = 0x02, //!< If the flag is set right side bar will prioritize showing icons only over text
-		DockAreaHasAutoHideButton = 0x04,     //!< If the flag is set each dock area has a auto hide menu button
+		DockContainerHasBottomSideBar = 0x04, //!< If the flag is set right side bar will prioritize showing icons only over text
-		LeftSideBarPrioritizeIconOnly = 0x08,     //!< If the flag is set each container will have a left side bar
+		DockAreaHasAutoHideButton = 0x08,     //!< If the flag is set each dock area has a auto hide menu button
-		RightSideBarPrioritizeIconOnly = 0x10,     //!< If the flag is set each container will have a right side bar
+		LeftSideBarPrioritizeIconOnly = 0x10,     //!< If the flag is set each container will have a left side bar
-		DockAreaOverlayHasTitle = 0x20, //!< If the flag is set overlay dock area title bar will show the window title
+		RightSideBarPrioritizeIconOnly = 0x20,     //!< If the flag is set each container will have a right side bar
+		BottomSideBarPrioritizeIconOnly = 0x40, //!< If the flag is set right side bar will prioritize showing icons only over text
+		DockAreaOverlayHasTitle = 0x80, //!< If the flag is set overlay dock area title bar will show the window title
 
 		DefaultAutoHideConfig = DockContainerHasLeftSideBar 
                               | DockContainerHasRightSideBar
+                              | DockContainerHasBottomSideBar
                               | DockAreaHasAutoHideButton
                               | DockAreaOverlayHasTitle, ///< the default configuration for left and right side bars
 	};

src/DockWidgetSideTab.cpp

@@ -56,6 +56,7 @@ struct DockWidgetSideTabPrivate
 	QBoxLayout* TitleLayout; // To have independent spacing from the icon
 	CSideTabBar* SideTabBar;
 	QSize IconSize;
+	Qt::Orientation Orientation{Qt::Vertical};
 	SideTabIconLabel* IconLabel = nullptr;
 	QIcon Icon;
 
@@ -89,6 +90,29 @@ struct DockWidgetSideTabPrivate
 		}
 		IconLabel->setVisible(true);
 	}
+
+	void updateContentsMargins()
+	{
+        QFontMetrics fm(TitleLabel->font());
+        int Spacing = qRound(fm.height() / 2.0);
+
+		if (Orientation == Qt::Vertical)
+		{
+            TitleLayout->setContentsMargins(Spacing, Spacing, 0, Spacing);
+			if (IconLabel)
+			{
+                IconLabel->setContentsMargins(Spacing / 2, Spacing / 2, Spacing / 2, 0);
+			}
+		}
+		else if (Orientation == Qt::Horizontal)
+		{
+            TitleLayout->setContentsMargins(Spacing,Spacing / 2,Spacing,Spacing);
+			if (IconLabel)
+			{
+                IconLabel->setContentsMargins(Spacing / 2, Spacing / 2, Spacing / 2, 0);
+			}
+		}
+	}
 }; // struct DockWidgetTabPrivate
 
 
@@ -115,7 +139,6 @@ void DockWidgetSideTabPrivate::createLayout()
 	// Fill the layout
     // Purely for spacing on the text without messing up spacing on the icon
 	TitleLayout = new QBoxLayout(QBoxLayout::TopToBottom); 
-	TitleLayout->setContentsMargins(Spacing,Spacing,0,Spacing);
 	TitleLayout->addWidget(TitleLabel);
 	TitleLayout->setSpacing(0);
 
@@ -125,6 +148,8 @@ void DockWidgetSideTabPrivate::createLayout()
 	_this->setLayout(Layout);
 	Layout->addLayout(TitleLayout, 1);
 
+	updateContentsMargins();
+
 	TitleLabel->setVisible(true);
 }
 
@@ -241,8 +266,22 @@ void CDockWidgetSideTab::setIconSize(const QSize& Size)
 
 
 //============================================================================
-void CDockWidgetSideTab::updateTitleAndIconVisibility(SideTabBarArea area)
+void CDockWidgetSideTab::setOrientation(Qt::Orientation Orientation)
 {
+	d->Orientation = Orientation;
+	d->Layout->setDirection(Orientation == Qt::Vertical ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight);
+	d->TitleLabel->setOrientation(Orientation);
+}
+
+
+//============================================================================
+void CDockWidgetSideTab::updateOrientationAndSpacing(SideTabBarArea area)
+{
+	setOrientation(area == Bottom ? Qt::Horizontal : Qt::Vertical);
+
+	d->updateContentsMargins();
+
+	// Handle Icon changes
     if (d->Icon.isNull())
     {
 		return;
@@ -251,17 +290,20 @@ void CDockWidgetSideTab::updateTitleAndIconVisibility(SideTabBarArea area)
     QFontMetrics fm(d->TitleLabel->font());
     int Spacing = qRound(fm.height() / 2.0);
 
-	if (CDockManager::testConfigFlag(CDockManager::LeftSideBarPrioritizeIconOnly) && area == Left
+	if (CDockManager::testConfigFlag(CDockManager::LeftSideBarPrioritizeIconOnly) && area == Left)
-		|| CDockManager::testConfigFlag(CDockManager::RightSideBarPrioritizeIconOnly) && area == Right)
 	{
 		d->TitleLabel->hide();
 		d->TitleLayout->setContentsMargins(0, 0, 0, 0);
         d->IconLabel->setContentsMargins(Spacing / 2, Spacing / 2, Spacing / 2, Spacing / 2);
 		return;
 	}
-
+	if (CDockManager::testConfigFlag(CDockManager::RightSideBarPrioritizeIconOnly) && area == Right)
-    d->TitleLayout->setContentsMargins(Spacing, Spacing, 0, Spacing);
+	{
-    d->IconLabel->setContentsMargins(Spacing / 2, Spacing / 2, Spacing / 2, 0);
+		d->TitleLabel->hide();
+		d->TitleLayout->setContentsMargins(0, 0, 0, 0);
+        d->IconLabel->setContentsMargins(Spacing / 2, Spacing / 2, Spacing, Spacing / 2);
+		return;
+	}
 
 	d->TitleLabel->show();
 }

src/DockWidgetSideTab.h

@@ -78,7 +78,8 @@ public:
     enum SideTabBarArea
     {
         Left,
-        Right
+        Right,
+		Bottom
     };
 
 	Q_ENUM(SideTabBarArea)
@@ -120,15 +121,20 @@ public:
 
 	/**
 	 * Set an explicit icon size.
-	 * If no icon size has been set explicitely, than the tab sets the icon size
+	 * If no icon size has been set explicitly, than the tab sets the icon size
 	 * depending on the style
 	 */
 	void setIconSize(const QSize& Size);
 
 	/**
-	 * Update the title and icon visibility based on the area and the config
+	 * Set orientation vertical or horizontal
 	 */
-	void updateTitleAndIconVisibility(SideTabBarArea area);
+	void setOrientation(Qt::Orientation Orientation);
+
+	/**
+	 * Update the orientation, visibility and spacing based on the area and the config
+	 */
+	void updateOrientationAndSpacing(SideTabBarArea area);
 
 Q_SIGNALS:
 	void elidedChanged(bool elided);

src/ElidingLabel.cpp

@@ -241,44 +241,95 @@ QString CElidingLabel::text() const
 	return d->Text;
 }
 
+/**
+ * Private data of public CVerticalElidingLabel
+ */
+struct VerticalElidingLabelPrivate
+{
+	CVerticalElidingLabel* _this;
+	Qt::Orientation Orientation {Qt::Horizontal};
+
+	VerticalElidingLabelPrivate(CVerticalElidingLabel* _public);
+};
+
+
+//============================================================================
+VerticalElidingLabelPrivate::VerticalElidingLabelPrivate(CVerticalElidingLabel* _public)
+{
+}
+
 //============================================================================
 CVerticalElidingLabel::CVerticalElidingLabel(QWidget* parent, Qt::WindowFlags f) :
-	CElidingLabel(parent, f)
+	CElidingLabel(parent, f),
+	d(new VerticalElidingLabelPrivate(this))
 {
 }
 
+//============================================================================
+void CVerticalElidingLabel::setOrientation(Qt::Orientation orientation)
+{
+	d->Orientation = orientation;
+	updateGeometry();
+}
+
 //============================================================================
 void CVerticalElidingLabel::paintEvent(QPaintEvent* event)
 {
-	QPainter painter(this);
+	if (d->Orientation == Qt::Vertical)
-	painter.rotate(90);
+	{
-	painter.drawText(0,0, QLabel::text());
+        QPainter painter(this);
+        painter.rotate(90);
+        painter.drawText(0,0, QLabel::text());
+		return;
+	}
+
+    CElidingLabel::paintEvent(event);
 }
 
 //============================================================================
 QSize CVerticalElidingLabel::sizeHint() const
 {
-	QSize s = CElidingLabel::minimumSizeHint();
+	if (d->Orientation == Qt::Vertical)
-	return QSize(s.height(), s.width());
+	{
+        QSize s = CElidingLabel::minimumSizeHint();
+        return QSize(s.height(), s.width());
+	}
+
+	return CElidingLabel::sizeHint();
 }
 
 //============================================================================
 QSize CVerticalElidingLabel::minimumSizeHint() const
 {
-	QSize s = CElidingLabel::sizeHint();
+	if (d->Orientation == Qt::Vertical)
-	return QSize(s.height(), s.width());
+	{
+        QSize s = CElidingLabel::sizeHint();
+        return QSize(s.height(), s.width());
+	}
+	
+	return CElidingLabel::minimumSizeHint();
 }
 
 //============================================================================
 int CVerticalElidingLabel::availableWidthForText() const
 {
-	return size().height();
+	if (d->Orientation == Qt::Vertical)
+	{
+        return size().height();
+	}
+
+	return CElidingLabel::availableWidthForText();
 }
 
 //============================================================================
 int CVerticalElidingLabel::availableWidthForText(QResizeEvent* event) const
 {
-	return event->size().height();
+	if (d->Orientation == Qt::Vertical)
+	{
+        return event->size().height();
+	}
+
+	return CElidingLabel::availableWidthForText(event);
 }
 } // namespace QtLabb
 

src/ElidingLabel.h

@@ -36,7 +36,7 @@
 namespace ads
 {
 struct ElidingLabelPrivate;
-
+struct VerticalElidingLabelPrivate;
 /**
  * A QLabel that supports eliding text.
  * Because the functions setText() and text() are no virtual functions setting
@@ -108,6 +108,9 @@ Q_SIGNALS:
 
 class CVerticalElidingLabel : public CElidingLabel
 {
+private:
+	VerticalElidingLabelPrivate* d;
+
 protected:
 	void paintEvent(QPaintEvent* event) override;
 	QSize sizeHint() const override;
@@ -117,6 +120,8 @@ protected:
 
 public:
 	CVerticalElidingLabel(QWidget* parent = 0, Qt::WindowFlags f = Qt::WindowFlags ());
+
+	void setOrientation(Qt::Orientation orientation);
 }; // class CVerticalElidingLabel
 
 } // namespace QtLabb

src/OverlayDockContainer.cpp

@@ -58,6 +58,30 @@ struct OverlayDockContainerPrivate
 	 * Private data constructor
 	 */
 	OverlayDockContainerPrivate(COverlayDockContainer *_public);
+
+	/**
+	 * Convenience function to get a dock widget area
+	 */
+	DockWidgetArea getArea(CDockWidgetSideTab::SideTabBarArea area)
+	{
+        switch (area)
+        {
+            case CDockWidgetSideTab::Left:
+            {
+				return LeftDockWidgetArea;
+            }
+            case CDockWidgetSideTab::Right:
+            {
+				return RightDockWidgetArea;
+            }
+            case CDockWidgetSideTab::Bottom: 
+            {
+				return BottomDockWidgetArea;
+            }
+        }
+
+		return LeftDockWidgetArea;
+	}
 }; // struct OverlayDockContainerPrivate
 
 //============================================================================
@@ -87,23 +111,35 @@ COverlayDockContainer::COverlayDockContainer(CDockManager* DockManager, CDockWid
 	d->DockArea->updateTitleBarButtonToolTip();
 
 	QBoxLayout* l = new QBoxLayout(QBoxLayout::LeftToRight);
-	d->Splitter = new QSplitter(Qt::Orientation::Horizontal);
+	d->Splitter = new QSplitter(area == CDockWidgetSideTab::Bottom ? Qt::Orientation::Vertical : Qt::Orientation::Horizontal);
 	d->Splitter->setObjectName("overlaySplitter");
 	d->Splitter->setChildrenCollapsible(false);
 
 	const auto emptyWidget = new QWidget();
-	emptyWidget->setMinimumWidth(50); // Prevents you from dragging the splitter too far
+	emptyWidget->setMinimumWidth(50); 
+	emptyWidget->setMinimumHeight(50); // Prevents you from dragging the splitter too far
 
-	if (area == CDockWidgetSideTab::SideTabBarArea::Left)
+    switch (area)
-	{
+    {
-        d->Splitter->addWidget(d->DockArea);
+        case CDockWidgetSideTab::Left:
-        d->Splitter->addWidget(emptyWidget);
+        {
-	}
+            d->Splitter->addWidget(d->DockArea);
-	else
+            d->Splitter->addWidget(emptyWidget);
-	{
+            break;
-        d->Splitter->addWidget(emptyWidget);
+        }
-        d->Splitter->addWidget(d->DockArea);
+        case CDockWidgetSideTab::Right: 
-	}
+        {
+            d->Splitter->addWidget(emptyWidget);
+            d->Splitter->addWidget(d->DockArea);
+            break;
+        }
+        case CDockWidgetSideTab::Bottom: 
+        {
+            d->Splitter->addWidget(emptyWidget);
+            d->Splitter->addWidget(d->DockArea);
+			break;
+        }
+    }
 
 	l->setContentsMargins(QMargins());
 	l->setSpacing(0);
@@ -122,11 +158,19 @@ COverlayDockContainer::COverlayDockContainer(CDockManager* DockManager, CDockWid
 //============================================================================
 void COverlayDockContainer::updateMask()
 {
-	const auto rect = d->DockArea->frameGeometry();
+    const auto rect = d->DockArea->frameGeometry();
-	const auto topLeft = rect.topLeft();
+    const auto topLeft = rect.topLeft();
-	const auto handleSize = d->Splitter->handleWidth();
+    const auto handleSize = d->Splitter->handleWidth();
-	const auto offset = d->Area == CDockWidgetSideTab::SideTabBarArea::Left ? 0 : handleSize;
+
-    setMask(QRect(QPoint(topLeft.x() - offset, topLeft.y()), QSize(rect.size().width() + handleSize, rect.size().height())));
+	if (d->Area == CDockWidgetSideTab::Bottom)
+	{
+        setMask(QRect(QPoint(topLeft.x(), topLeft.y() - handleSize), QSize(rect.size().width(), rect.size().height() + handleSize)));
+	}
+	else
+	{
+        const auto offset = d->Area == CDockWidgetSideTab::SideTabBarArea::Left ? 0 : handleSize;
+        setMask(QRect(QPoint(topLeft.x() - offset, topLeft.y()), QSize(rect.size().width() + handleSize, rect.size().height())));
+	}
 }
 
 //============================================================================
@@ -194,17 +238,27 @@ void COverlayDockContainer::addDockWidget(CDockWidget* DockWidget)
     const auto dockContainerParent = parentContainer();
     const auto rootSplitter = dockContainerParent->rootSplitter();
     const auto rect = rootSplitter->frameGeometry();
-    const auto dockWidth = DockWidget->size().width();
+    const auto dockWidth = DockWidget->sizeHint().width();
-	if (d->Area == CDockWidgetSideTab::SideTabBarArea::Left)
+    switch (d->Area)
-	{
+    {
-        d->Splitter->setSizes({ dockWidth, rect.width() - dockWidth });
+        case CDockWidgetSideTab::Left:
-	}
+        {
-	else
+            d->Splitter->setSizes({ dockWidth, rect.width() - dockWidth });
-	{
+			break;
-        d->Splitter->setSizes({ rect.width() - dockWidth, dockWidth });
+        }
-	}
+        case CDockWidgetSideTab::Right: 
+        {
+            d->Splitter->setSizes({ rect.width() - dockWidth, dockWidth });
+			break;
+        }
+        case CDockWidgetSideTab::Bottom:
+        { 
+            d->Splitter->setSizes({ rect.width() - dockWidth, dockWidth });
+			break;
+        }
+    }
 
-	d->DockWidget->sideTabWidget()->updateTitleAndIconVisibility(d->Area);
+	d->DockWidget->sideTabWidget()->updateOrientationAndSpacing(d->Area);
 
 	updateSize();
 	updateMask();
@@ -235,7 +289,7 @@ void COverlayDockContainer::moveContentsToParent()
 	}
 	else
 	{
-        parentContainer()->addDockWidget(d->Area == CDockWidgetSideTab::Left ? LeftDockWidgetArea : RightDockWidgetArea, d->DockWidget);
+        parentContainer()->addDockWidget(d->getArea(d->Area), d->DockWidget);
 	}
 	cleanupAndDelete();
 }
@@ -338,14 +392,21 @@ void COverlayDockContainer::collapseView(bool Enable)
 //============================================================================
 bool COverlayDockContainer::areaExistsInConfig(CDockWidgetSideTab::SideTabBarArea area)
 {
-	if (area == CDockWidgetSideTab::Left && !CDockManager::testConfigFlag(CDockManager::DockContainerHasLeftSideBar))
+    switch (area)
-	{
+    {
-		return false;
+        case CDockWidgetSideTab::Left:
-	}
+        {
-	if (area == CDockWidgetSideTab::Right && !CDockManager::testConfigFlag(CDockManager::DockContainerHasRightSideBar))
+			return CDockManager::testConfigFlag(CDockManager::DockContainerHasLeftSideBar);
-	{
+        }
-		return false;
+        case CDockWidgetSideTab::Right:
-	}
+        {
+			return CDockManager::testConfigFlag(CDockManager::DockContainerHasRightSideBar);
+        }
+        case CDockWidgetSideTab::Bottom: 
+        {
+			return CDockManager::testConfigFlag(CDockManager::DockContainerHasBottomSideBar);
+        }
+    }
 
 	return true;
 }

src/SideTabBar.cpp

@@ -51,6 +51,7 @@ struct SideTabBarPrivate
     CSideTabBar* _this;
     CDockContainerWidget* ContainerWidget;
     QBoxLayout* TabsLayout;
+    Qt::Orientation Orientation;
 }; // struct SideTabBarPrivate
 
 //============================================================================
@@ -61,13 +62,14 @@ SideTabBarPrivate::SideTabBarPrivate(CSideTabBar* _public) :
 
 
 //============================================================================
-CSideTabBar::CSideTabBar(CDockContainerWidget* parent) :
+CSideTabBar::CSideTabBar(CDockContainerWidget* parent, Qt::Orientation orientation) :
     QWidget(parent),
     d(new SideTabBarPrivate(this))
 {
     d->ContainerWidget = parent;
+    d->Orientation = orientation;
 
-    d->TabsLayout = new QBoxLayout(QBoxLayout::TopToBottom);
+    d->TabsLayout = new QBoxLayout(d->Orientation == Qt::Vertical ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight);
     d->TabsLayout->setContentsMargins(0, 0, 0, 0);
     d->TabsLayout->setSpacing(0);
     d->TabsLayout->addStretch(1);
@@ -95,7 +97,6 @@ void CSideTabBar::insertSideTab(int Index, CDockWidgetSideTab* SideTab)
 //============================================================================
 void CSideTabBar::removeSideTab(CDockWidgetSideTab* SideTab)
 {
-    const auto index = d->TabsLayout->indexOf(SideTab);
     d->TabsLayout->removeWidget(SideTab);
 }
 }

src/SideTabBar.h

@@ -56,7 +56,7 @@ public:
 	/**
 	 * Default Constructor
 	 */
-    CSideTabBar(CDockContainerWidget* parent);
+    CSideTabBar(CDockContainerWidget* parent, Qt::Orientation orientation);
 
 	/**
 	 * Virtual Destructor

src/stylesheets/focus_highlighting.css

@@ -37,6 +37,11 @@ ads--CDockWidgetSideTab[sideTabBarArea="Right"] {
 	border-bottom: 1px solid white;
 }
 
+ads--CDockWidgetSideTab[sideTabBarArea="Bottom"] {
+	border-bottom: 3px solid grey;
+	border-right: 1px solid white;
+}
+
 ads--CDockWidgetTab[activeTab="true"] {
 	background: qlineargradient(spread : pad, x1 : 0, y1 : 0, x2 : 0, y2 : 0.5, stop : 0
 		palette(window), stop:1 palette(light));
@@ -123,6 +128,11 @@ ads--CDockWidgetSideTab:hover[sideTabBarArea="Left"] {
 	border-left: 3px solid palette(highlight);
 }
 
+ads--CDockWidgetSideTab:hover[sideTabBarArea="Bottom"] {
+	border-bottom: 3px solid palette(highlight);
+}
+
+
 ads--CDockWidgetSideTab[sideTabBarArea="Right"][focused="true"] {
 	border-right: 3px solid palette(highlight);
 }
@@ -131,6 +141,10 @@ ads--CDockWidgetSideTab[sideTabBarArea="Left"][focused="true"] {
 	border-left: 3px solid palette(highlight);
 }
 
+ads--CDockWidgetSideTab[sideTabBarArea="Bottom"][focused="true"] {
+	border-bottom: 3px solid palette(highlight);
+}
+
 ads--CDockWidgetTab[focused="true"] {
 	background: palette(highlight);
 	border-color: palette(highlight);