+void wxDataViewMainWindow::OnLeftKey()
+{
+ if (IsList())
+ return;
+
+ wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
+ if (!node)
+ return;
+
+ if (node->HasChildren() && node->IsOpen())
+ {
+ Collapse(m_currentRow);
+ }
+ else // if the node is already closed we move the selection to its parent
+ {
+ wxDataViewTreeNode *parent_node = node->GetParent();
+
+ if (parent_node)
+ {
+ int parent = GetRowByItem( parent_node->GetItem() );
+ if ( parent >= 0 )
+ {
+ unsigned int row = m_currentRow;
+ SelectRow( row, false);
+ SelectRow( parent, true );
+ ChangeCurrentRow( parent );
+ GetOwner()->EnsureVisible( parent, -1 );
+ SendSelectionChangedEvent( parent_node->GetItem() );
+ }
+ }
+ }
+}
+
+void wxDataViewMainWindow::OnRightKey()
+{
+ if (!IsExpanded( m_currentRow ))
+ Expand( m_currentRow );
+ else
+ {
+ unsigned int row = m_currentRow;
+ SelectRow( row, false );
+ SelectRow( row + 1, true );
+ ChangeCurrentRow( row + 1 );
+ GetOwner()->EnsureVisible( row + 1, -1 );
+ SendSelectionChangedEvent( GetItemByRow(row+1) );
+ }
+}
+