ADS: Remove struct from DockManager

We do not use struct in Qt Creator.

Change-Id: I7755d66bc7b77825ab17ed333b23cbe36e52ff72
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/libs/advanceddockingsystem/dockareawidget.h

@@ -69,7 +69,7 @@ private:
     friend class DockWidgetTab;
     friend class DockWidgetPrivate;
     friend class DockWidget;
-    friend struct DockManagerPrivate;
+    friend class DockManagerPrivate;
     friend class DockManager;
 
     void onTabCloseRequested(int index);

src/libs/advanceddockingsystem/dockcontainerwidget.h

@@ -50,7 +50,7 @@ class DockContainerWidgetPrivate;
 class DockAreaWidget;
 class DockWidget;
 class DockManager;
-struct DockManagerPrivate;
+class DockManagerPrivate;
 class FloatingDockContainer;
 class FloatingDockContainerPrivate;
 class FloatingDragPreview;
@@ -71,7 +71,7 @@ private:
     DockContainerWidgetPrivate *d; ///< private data (pimpl)
     friend class DockContainerWidgetPrivate;
     friend class DockManager;
-    friend struct DockManagerPrivate;
+    friend class DockManagerPrivate;
     friend class DockAreaWidget;
     friend struct DockAreaWidgetPrivate;
     friend class FloatingDockContainer;

src/libs/advanceddockingsystem/dockmanager.cpp

@@ -77,8 +77,9 @@ namespace ADS
     /**
      * Private data class of DockManager class (pimpl)
      */
-    struct DockManagerPrivate
+    class DockManagerPrivate
     {
+    public:
         DockManager *q;
         QList<FloatingDockContainer *> m_floatingWidgets;
         QList<DockContainerWidget *> m_containers;
@@ -144,8 +145,7 @@ namespace ADS
         bool restoreContainer(int index, DockingStateReader &stream, bool testing);
 
         void workspaceLoadingProgress();
-    };
-    // struct DockManagerPrivate
+    }; // class DockManagerPrivate
 
     DockManagerPrivate::DockManagerPrivate(DockManager *parent)
         : q(parent)

src/libs/advanceddockingsystem/dockmanager.h

@@ -66,7 +66,7 @@ const char STARTUP_WORKSPACE_SETTINGS_KEY[] = "QML/Designer/StartupWorkspace";
 const char AUTO_RESTORE_WORKSPACE_SETTINGS_KEY[] = "QML/Designer/AutoRestoreLastWorkspace";
 } // namespace Constants
 
-struct DockManagerPrivate;
+class DockManagerPrivate;
 class FloatingDockContainer;
 class FloatingDockContainerPrivate;
 class DockComponentsFactory;
@@ -96,7 +96,7 @@ class ADS_EXPORT DockManager : public DockContainerWidget
     Q_OBJECT
 private:
     DockManagerPrivate *d; ///< private data (pimpl)
-    friend struct DockManagerPrivate;
+    friend class DockManagerPrivate;
     friend class FloatingDockContainer;
     friend class FloatingDockContainerPrivate;
     friend class DockContainerWidget;

src/libs/advanceddockingsystem/dockwidget.h

@@ -75,7 +75,7 @@ protected:
     friend class DockAreaWidget;
     friend class FloatingDockContainer;
     friend class DockManager;
-    friend struct DockManagerPrivate;
+    friend class DockManagerPrivate;
     friend class DockContainerWidgetPrivate;
     friend class DockAreaTabBar;
     friend class DockWidgetTab;

src/libs/advanceddockingsystem/floatingdockcontainer.h

@@ -50,7 +50,7 @@ namespace ADS {
 
 class FloatingDockContainerPrivate;
 class DockManager;
-struct DockManagerPrivate;
+class DockManagerPrivate;
 class DockAreaWidget;
 class DockContainerWidget;
 class DockWidget;
@@ -113,7 +113,7 @@ private:
     FloatingDockContainerPrivate *d; ///< private data (pimpl)
     friend class FloatingDockContainerPrivate;
     friend class DockManager;
-    friend struct DockManagerPrivate;
+    friend class DockManagerPrivate;
     friend class DockAreaTabBar;
     friend struct DockWidgetTabPrivate;
     friend class DockWidgetTab;