public void initalizeTreeState ( ) { _lastNodeExpandedImage = IMAGE_NODE_EXPAND_LAST ; _nodeExpandedImage = IMAGE_NODE_EXPAND ; _lastNodeCollapsedImage = IMAGE_NODE_COLLAPSE_LAST ; _nodeCollapsedImage = IMAGE_NODE_COLLAPSE ; _lastLineJoinImage = IMAGE_LINE_JOIN_LAST ; _lineJoinImage = IMAGE_LINE_JOIN ; _verticalLineImage = IMAGE_LINE_VERTICAL ; _imageSpacer = IMAGE_SPACER ; _defaultIcon = DEFAULT_ICON ; _imageRoot = null ; _selectionAction = null ; _expansionAction = null ; }
This method initalizes the state of the properties to their default values used by the tree tag to create the tree markup .