Moved private classes into dedicated header

src/DockAreaTitleBar.cpp

@@ -39,6 +39,7 @@
 #include <QDebug>
 #include <QPointer>
 
+#include "DockAreaTitleBar_p.h"
 #include "ads_globals.h"
 #include "FloatingDockContainer.h"
 #include "FloatingDragPreview.h"

src/DockAreaTitleBar.h

@@ -31,7 +31,6 @@
 //                                   INCLUDES
 //============================================================================
 #include <QFrame>
-#include <QToolButton>
 
 #include "ads_globals.h"
 
@@ -157,56 +156,6 @@ signals:
 	void tabBarClicked(int index);
 }; // class name
 
-using tTitleBarButton = QToolButton;
-
-   /**
-   * Title bar button of a dock area that customizes tTitleBarButton appearance/behaviour
-   * according to various config flags such as:
-   * CDockManager::DockAreaHas_xxx_Button - if set to 'false' keeps the button always invisible
-   * CDockManager::DockAreaHideDisabledButtons - if set to 'true' hides button when it is disabled
-   */
-class CTitleBarButton : public tTitleBarButton
-{
-	Q_OBJECT
-		
-	bool Visible = true;
-	bool HideWhenDisabled = false;
-
-public:
-	using Super = tTitleBarButton;
-	CTitleBarButton(bool visible = true, QWidget* parent = nullptr);
-
-	/**
-	* Adjust this visibility change request with our internal settings:
-	*/
-	virtual void setVisible(bool visible) override;
-
-protected:
-	/**
-	* Handle EnabledChanged signal to set button invisible if the configured
-	*/
-	bool event(QEvent *ev) override;
-};
-
-
-/**
-* This spacer widget is here because of the following problem.
-* The dock area title bar handles mouse dragging and moving the floating widget.
-* The  problem is, that if the title bar becomes invisible, i.e. if the dock
-* area contains only one single dock widget and the dock area is moved
-* into a floating widget, then mouse events are not handled anymore and dragging
-* of the floating widget stops.
-*/
-class CSpacerWidget : public QWidget
-{
-	Q_OBJECT
-public:
-	using Super = QWidget;
-	CSpacerWidget(QWidget* Parent = 0);
-	virtual QSize sizeHint() const override {return QSize(0, 0);}
-	virtual QSize minimumSizeHint() const override {return QSize(0, 0);}
-};
-
 }
  // namespace ads
 //-----------------------------------------------------------------------------

src/DockAreaTitleBar_p.h

@@ -0,0 +1,93 @@
+#ifndef DockAreaTitleBarPH
+#define DockAreaTitleBarPH
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   DockAreaTitleBar_p.h
+/// \author Uwe Kindler
+/// \date   12.10.2018
+/// \brief  Declaration of classes CTitleBarButton and CSpacerWidget
+//============================================================================
+
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include <QFrame>
+#include <QToolButton>
+
+#include "ads_globals.h"
+
+namespace ads
+{
+using tTitleBarButton = QToolButton;
+
+   /**
+   * Title bar button of a dock area that customizes tTitleBarButton appearance/behaviour
+   * according to various config flags such as:
+   * CDockManager::DockAreaHas_xxx_Button - if set to 'false' keeps the button always invisible
+   * CDockManager::DockAreaHideDisabledButtons - if set to 'true' hides button when it is disabled
+   */
+class CTitleBarButton : public tTitleBarButton
+{
+	Q_OBJECT
+		
+	bool Visible = true;
+	bool HideWhenDisabled = false;
+
+public:
+	using Super = tTitleBarButton;
+	CTitleBarButton(bool visible = true, QWidget* parent = nullptr);
+
+	/**
+	* Adjust this visibility change request with our internal settings:
+	*/
+	virtual void setVisible(bool visible) override;
+
+protected:
+	/**
+	* Handle EnabledChanged signal to set button invisible if the configured
+	*/
+	bool event(QEvent *ev) override;
+};
+
+
+/**
+* This spacer widget is here because of the following problem.
+* The dock area title bar handles mouse dragging and moving the floating widget.
+* The  problem is, that if the title bar becomes invisible, i.e. if the dock
+* area contains only one single dock widget and the dock area is moved
+* into a floating widget, then mouse events are not handled anymore and dragging
+* of the floating widget stops.
+*/
+class CSpacerWidget : public QWidget
+{
+	Q_OBJECT
+public:
+	using Super = QWidget;
+	CSpacerWidget(QWidget* Parent = 0);
+	virtual QSize sizeHint() const override {return QSize(0, 0);}
+	virtual QSize minimumSizeHint() const override {return QSize(0, 0);}
+};
+
+}
+ // namespace ads
+//-----------------------------------------------------------------------------
+#endif // DockAreaTitleBarPH