y.layout.hierarchic.incremental
Class PartitionGridLayoutStage

java.lang.Object
  y.layout.AbstractLayoutStage
      y.layout.hierarchic.incremental.PartitionGridLayoutStage

All Implemented Interfaces:

Layouter, LayoutStage

public class PartitionGridLayoutStage
extends AbstractLayoutStage

This class implements a layout stage that handles a given partition grid structure.

Information about the partition grid structure are held by a DataProvider registered with the graph with key PartitionGrid.PARTITION_GRID_DPKEY.

This stage is automatically added by the IncrementalHierarchicLayouter, if required.

See Also:

PartitionGrid, IncrementalHierarchicLayouter

Field Summary

Fields inherited from interface y.layout.Layouter

EDGE_ID_DPKEY, NODE_ID_DPKEY, NODE_TYPE_DPKEY, SELECTED_EDGES, SELECTED_NODES

Constructor Summary

PartitionGridLayoutStage()
Creates a new instance of PartitionGridLayoutStage.

Method Summary

boolean	canLayout(LayoutGraph graph) Accepts all graphs that are accepted by the specified core layout algorithm.
void	doLayout(LayoutGraph graph) Calculates the layout based on a PartitionGrid structure.

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

PartitionGridLayoutStage

public PartitionGridLayoutStage()

Creates a new instance of PartitionGridLayoutStage.

Method Detail

canLayout

public boolean canLayout(LayoutGraph graph)

Accepts all graphs that are accepted by the specified core layout algorithm.

Parameters:

graph - the input graph

Returns:

true if the core layout algorithm accepts this graph or is null, false otherwise.

See Also:

Layouter.doLayout(LayoutGraph)

doLayout

public void doLayout(LayoutGraph graph)

Calculates the layout based on a PartitionGrid structure.

If no PartitionGrid structure exists, the core layouter will be called immediately.

The given graph will not be copied during the layout process and the layout will be immediately applied to the given graph.

Parameters:

graph - the input graph

See Also:

Layouter.canLayout(LayoutGraph)