QmlDesigner: Refactor NavigatorWidget::treeView

Change-Id: If5e1c5dbd8dd6f52bcf43d88256201a4a3c4aa9a
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

src/plugins/qmldesigner/components/navigator/navigatorwidget.cpp

@@ -77,6 +77,11 @@ void NavigatorWidget::setTreeModel(QAbstractItemModel* model)
     m_treeView->setModel(model);
 }
 
+QTreeView *NavigatorWidget::treeView() const
+{
+    return m_treeView;
+}
+
 QList<QToolButton *> NavigatorWidget::createToolBarWidgets()
 {
     QList<QToolButton *> buttons;

src/plugins/qmldesigner/components/navigator/navigatorwidget.h

@@ -50,7 +50,7 @@ public:
     virtual ~NavigatorWidget();
 
     void setTreeModel(QAbstractItemModel *model);
-    QTreeView *treeView() const { return m_treeView; }
+    QTreeView *treeView() const;
     QList<QToolButton *> createToolBarWidgets();
     QString contextHelpId() const;