From 5d380708e107c67bfb66040bb7a444b976b18888 Mon Sep 17 00:00:00 2001
From: Uwe Kindler <uwe.kindler@cetoni.de>
Date: Fri, 7 Sep 2018 13:13:44 +0200
Subject: [PATCH] Added support for make a single tab floating via double click

---
 src/DockWidgetTab.cpp | 16 ++++++++++++++++
 src/DockWidgetTab.h   |  6 ++++++
 2 files changed, 22 insertions(+)

diff --git a/src/DockWidgetTab.cpp b/src/DockWidgetTab.cpp
index 486fd4f..5040c60 100644
--- a/src/DockWidgetTab.cpp
+++ b/src/DockWidgetTab.cpp
@@ -373,6 +373,22 @@ const QIcon& CDockWidgetTab::icon() const
 {
 	return d->Icon;
 }
+
+
+//============================================================================
+void CDockWidgetTab::mouseDoubleClickEvent(QMouseEvent *event)
+{
+	// 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
+	if (!d->DockArea->dockContainer()->isFloating() || d->DockArea->count() > 1)
+	{
+		d->startFloating();
+	}
+
+	Super::mouseDoubleClickEvent(event);
+}
+
 } // namespace ads
 
 //---------------------------------------------------------------------------
diff --git a/src/DockWidgetTab.h b/src/DockWidgetTab.h
index b81d85d..dd2c07e 100644
--- a/src/DockWidgetTab.h
+++ b/src/DockWidgetTab.h
@@ -59,7 +59,13 @@ protected:
 	virtual void mouseReleaseEvent(QMouseEvent* ev) override;
 	virtual void mouseMoveEvent(QMouseEvent* ev) override;
 
+	/**
+	 * Double clicking the tab widget makes the assigned dock widget floating
+	 */
+	virtual void mouseDoubleClickEvent(QMouseEvent *event) override;
+
 public:
+	using Super = QFrame;
 	/**
 	 * Default Constructor
 	 * param[in] DockWidget The dock widget this title bar belongs to