y.layout.grouping
Class GroupNodeHider

java.lang.Object
  |
  +--y.layout.AbstractLayoutStage
        |
        +--y.layout.grouping.GroupNodeHider

All Implemented Interfaces:

Layouter, LayoutStage

public class GroupNodeHider

extends AbstractLayoutStage

A layout stage for hierarchically grouped graphs. Activating this stage removes all group nodes and adjacent edges from the graph before passing it on to its core layouter. After the core layouter has arranged the graph, the hidden eleemnts will be reinserted in the graph again.

Field Summary

Fields inherited from interface y.layout.Layouter

EDGE_ID_DPKEY, NODE_ID_DPKEY, SELECTED_EDGES, SELECTED_NODES

Constructor Summary

GroupNodeHider()
Creates a new instance of GroupNodeHider

GroupNodeHider(Layouter coreLayouter)
Creates a new instance of GroupNodeHider.

Method Summary

boolean	canLayout(LayoutGraph graph) Returns true iff the given graph can be layed out by this algorithm.
void	doLayout(LayoutGraph graph) Assigns a new graph layout to the given layout graph.

Methods inherited from class y.layout.AbstractLayoutStage

canLayoutCore, doLayoutCore, getCoreLayouter, setCoreLayouter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GroupNodeHider

public GroupNodeHider()

Creates a new instance of GroupNodeHider

GroupNodeHider

public GroupNodeHider(Layouter coreLayouter)

Creates a new instance of GroupNodeHider.

Parameters:

coreLayouter - the core layouter used by this layout stage.

Method Detail

canLayout

public boolean canLayout(LayoutGraph graph)

Description copied from interface: Layouter

Returns true iff the given graph can be layed out by this algorithm. Calling doLayout with the given graph as it's argument will only success if this method returns true.

doLayout

public void doLayout(LayoutGraph graph)

Description copied from interface: Layouter

Assigns a new graph layout to the given layout graph.