wxDataViewItem ProjectViewModel::GetParent( const wxDataViewItem& item ) const
{
if ( !item.IsOk() )
{
return wxDataViewItem( 0 );
}
ProjectViewModelNode *node = static_cast< ProjectViewModelNode* >( item.GetID() );
if ( !node
|| node == m_RootNode.Ptr()
|| !node->GetParent()
|| node->GetParent() == m_RootNode.Ptr() )
{
return wxDataViewItem( 0 );
}
return wxDataViewItem( (void*) node->GetParent() );
}
void ProjectViewModel::RemoveItem( const wxDataViewItem& item )
{
ProjectViewModelNode *node = static_cast< ProjectViewModelNode* >( item.GetID() );
if ( !node )
{
return;
}
// remove all of childNode's children
while( node->GetChildren().size() > 0 )
{
RemoveItem( wxDataViewItem( (void*)( *node->GetChildren().begin() ) ) );
}
// remove it from the multimap
for ( MM_ProjectViewModelNodesByPath::iterator lower = m_MM_ProjectViewModelNodesByPath.lower_bound( node->GetPath() ),
upper = m_MM_ProjectViewModelNodesByPath.upper_bound( node->GetPath() );
lower != upper && lower != m_MM_ProjectViewModelNodesByPath.end();
++lower )
{
if ( lower->second == node )
{
m_MM_ProjectViewModelNodesByPath.erase( lower );
break;
}
}
if ( node == m_RootNode )
{
return;
}
// Remove from the parent's childern
// this should free the node if there are no more references to it
ProjectViewModelNode *parentNode = node->GetParent();
if ( parentNode )
{
parentNode->GetChildren().erase( node );
}
if ( parentNode == m_RootNode.Ptr() )
{
parentNode = NULL;
}
ItemDeleted( wxDataViewItem( (void*) parentNode ), item );
}