QModelIndex QgsLayerTreeModel::symnode2index( QgsLayerTreeModelLegendNode* legendNode )
{
QModelIndex parentIndex = node2index( legendNode->parent() );
Q_ASSERT( parentIndex.isValid() );
int row = mSymbologyNodes[legendNode->parent()].indexOf( legendNode );
Q_ASSERT( row >= 0 );
return index( row, 0, parentIndex );
}
QModelIndex QgsLayerTreeModel::legendNode2index( QgsLayerTreeModelLegendNode* legendNode )
{
QModelIndex parentIndex = node2index( legendNode->layerNode() );
Q_ASSERT( parentIndex.isValid() );
int row = mLegendNodes[legendNode->layerNode()].indexOf( legendNode );
if ( row < 0 ) // legend node may be filtered (exists within the list of original nodes, but not in active nodes)
return QModelIndex();
return index( row, 0, parentIndex );
}
QModelIndex QgsLayerTreeModel::node2index( QgsLayerTreeNode* node ) const
{
if ( !node->parent() )
return QModelIndex(); // this is the only root item -> invalid index
QModelIndex parentIndex = node2index( node->parent() );
int row = node->parent()->children().indexOf( node );
Q_ASSERT( row >= 0 );
return index( row, 0, parentIndex );
}
