Implemented support for dragging a complete dock area including all dock widgets

AdvancedDockingSystem/src/v2/DockAreaWidget.cpp

@@ -42,6 +42,7 @@
 #include "DockContainerWidget.h"
 #include "DockWidget.h"
 #include "DockWidgetTitleBar.h"
+#include "FloatingDockContainer.h"
 
 #include <iostream>
 
@@ -52,12 +53,19 @@ static const char* const ACTION_PROPERTY = "action";
 
 /**
  * Custom scroll bar implementation for dock area tab bar
+ * This scroll area enables floating of a whole dock area including all
+ * dock widgets
  */
 class CTabsScrollArea : public QScrollArea
 {
+private:
+	QPoint m_DragStartMousePos;
+	CDockAreaWidget* DockArea;
+
 public:
-	CTabsScrollArea(QWidget* parent = nullptr)
+	CTabsScrollArea(CDockAreaWidget* parent)
-		: QScrollArea(parent)
+		: QScrollArea(parent),
+		  DockArea(parent)
 	{
 		setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Ignored);
 		setFrameStyle(QFrame::NoFrame);
@@ -80,6 +88,40 @@ protected:
 			horizontalScrollBar()->setValue(horizontalScrollBar()->value() - 20);
 		}
 	}
+
+	/**
+	 * Stores mouse position to detect dragging
+	 */
+	void mousePressEvent(QMouseEvent* ev)
+	{
+		if (ev->button() == Qt::LeftButton)
+		{
+			ev->accept();
+			m_DragStartMousePos = ev->pos();
+			return;
+		}
+		QScrollArea::mousePressEvent(ev);
+	}
+
+	/**
+	 * Starts floating the complete docking area including all dock widgets
+	 */
+	void mouseMoveEvent(QMouseEvent* ev)
+	{
+		QScrollArea::mouseMoveEvent(ev);
+		if (ev->buttons() != Qt::LeftButton)
+		{
+			return;
+		}
+		if (!this->geometry().contains(ev->pos()))
+		{
+			QSize Size = DockArea->size();
+			CFloatingDockContainer* FloatingWidget = new CFloatingDockContainer(DockArea);
+			FloatingWidget->startFloating(m_DragStartMousePos, Size);
+		}
+
+		return;
+	}
 }; // class CTabsScrollArea
 
 

AdvancedDockingSystem/src/v2/DockWidgetTitleBar.cpp

@@ -172,9 +172,7 @@ void DockWidgetTitleBarPrivate::startFloating(const QPoint& GlobalPos)
 		FloatingWidget = new CFloatingDockContainer(DockArea);
 	}
 
-	FloatingWidget->resize(Size);
+    FloatingWidget->startFloating(DragStartMousePosition, Size);
-    FloatingWidget->setObjectName("FloatingWidget");
-    FloatingWidget->startFloating(DragStartMousePosition);
 
     /*
      *     DropOverlay* ContainerDropOverlay = cw->dropOverlay();

AdvancedDockingSystem/src/v2/FloatingDockContainer.cpp

@@ -279,6 +279,7 @@ bool CFloatingDockContainer::event(QEvent *e)
 		std::cout << "FloatingWidget::event QEvent::NonClientAreaMouseButtonRelease" << std::endl;
 		d->titleMouseReleaseEvent();
 	}
+
 	return QWidget::event(e);
 }
 
@@ -286,7 +287,7 @@ bool CFloatingDockContainer::event(QEvent *e)
 //============================================================================
 bool CFloatingDockContainer::eventFilter(QObject *watched, QEvent *event)
 {
-	if (event->type() == QEvent::MouseButtonRelease)
+	if (event->type() == QEvent::MouseButtonRelease && d->DraggingActive)
 	{
 		std::cout << "FloatingWidget::eventFilter QEvent::MouseButtonRelease" << std::endl;
 		d->titleMouseReleaseEvent();
@@ -304,8 +305,9 @@ bool CFloatingDockContainer::eventFilter(QObject *watched, QEvent *event)
 
 
 //============================================================================
-void CFloatingDockContainer::startFloating(const QPoint& Pos)
+void CFloatingDockContainer::startFloating(const QPoint& Pos, const QSize& Size)
 {
+	resize(Size);
 	d->setDraggingActive(true);
 	QPoint TargetPos = QCursor::pos() - Pos;
 	move(TargetPos);

AdvancedDockingSystem/src/v2/FloatingDockContainer.h

@@ -86,7 +86,7 @@ public:
 	/**
 	 * Starts floating at the given global position
 	 */
-	void startFloating(const QPoint& Pos);
+	void startFloating(const QPoint& Pos, const QSize& Size = QSize());
 }; // class FloatingDockContainer
 }
  // namespace ads