Made translation between PdmUiItem and QModelIndex available in PdmUiTreeView

After considering the different options, I concluded that it is important to
support the Qt way of doing things.
If the App programmer wants to do things the Qt way, it should be possible.

Fwk/AppFwk/cafUserInterface/cafPdmUiTreeView.cpp

@@ -155,5 +155,21 @@ void PdmUiTreeView::setExpanded(const PdmUiItem* uiItem, bool doExpand) const
     m_treeViewEditor->setExpanded(uiItem, doExpand);
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+PdmUiItem* PdmUiTreeView::uiItemFromModelIndex(const QModelIndex& index) const
+{
+    return m_treeViewEditor->uiItemFromModelIndex(index);
+}
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+QModelIndex PdmUiTreeView::findModelIndex(const PdmUiItem* object) const
+{
+    return m_treeViewEditor->findModelIndex(object);
+}
+
 } //End of namespace caf
 

Fwk/AppFwk/cafUserInterface/cafPdmUiTreeView.h

@@ -43,6 +43,7 @@ class QVBoxLayout;
 class QTreeView;
 class QItemSelection;
 class QMenu;
+class QModelIndex;
 
 namespace caf
 {
@@ -73,6 +74,10 @@ public:
     void        selectAsCurrentItem(PdmUiItem* uiItem);
     void        setExpanded(const PdmUiItem* uiItem, bool doExpand) const ;
 
+    PdmUiItem*  uiItemFromModelIndex(const QModelIndex& index) const;
+    QModelIndex findModelIndex(const PdmUiItem* object) const;
+
+
 signals:
     void        selectionChanged();
 

Fwk/AppFwk/cafUserInterface/cafPdmUiTreeViewEditor.cpp

@@ -274,5 +274,21 @@ void PdmUiTreeViewEditor::setExpanded(const PdmUiItem* uiItem, bool doExpand) co
     m_treeView->setExpanded(index, doExpand);
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+PdmUiItem* PdmUiTreeViewEditor::uiItemFromModelIndex(const QModelIndex& index) const
+{
+    return m_treeViewModel->uiItemFromModelIndex(index);
+}
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+QModelIndex PdmUiTreeViewEditor::findModelIndex(const PdmUiItem* object) const
+{
+    return m_treeViewModel->findModelIndex(object);
+}
+
 
 } // end namespace caf

Fwk/AppFwk/cafUserInterface/cafPdmUiTreeViewEditor.h

@@ -91,6 +91,9 @@ public:
     void                selectedUiItems(std::vector<PdmUiItem*>& objects);
     void                setExpanded(const PdmUiItem* uiItem, bool doExpand) const;
 
+    PdmUiItem*          uiItemFromModelIndex(const QModelIndex& index) const;
+    QModelIndex         findModelIndex(const PdmUiItem* object) const;
+
     QWidget*            createWidget(QWidget* parent);
 
 signals: