y.layout
Class SequentialLayouter

java.lang.Object
  y.layout.SequentialLayouter

All Implemented Interfaces:

Layouter

public class SequentialLayouter
extends Object
implements Layouter

This Layouter will take several Layouter implementations and will run these layout algorithms one after the other in the order in which they were added.

This class can for example be used to bundle several layout steps and handover a single layouter to a BufferedLayouter.

Field Summary

Fields inherited from interface y.layout.Layouter

EDGE_ID_DPKEY, NODE_ID_DPKEY, SELECTED_EDGES, SELECTED_NODES

Constructor Summary

SequentialLayouter()

Method Summary

void	appendLayouter(Layouter layouter) Appends the given layouter to the end of the layouter chain.
void	appendLayouters(List layouters) Appends the specified layouters to the end of the layouter chain.
boolean	canLayout(LayoutGraph graph) Returns true iff the given graph can be laid out by this algorithm.
void	clearLayouterChain() Clears the layouter chain and therefore removes all layouters.
void	doLayout(LayoutGraph graph) Main layout routine that assigns new layout information to the given graph.
List	getLayouters() Returns a list of the layouters that are currently in the layout chain.
void	setLayouters(List layouters) Sets the given list of layouters as the layouter chain.

Methods inherited from class java.lang.Object

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

Constructor Detail

SequentialLayouter

public SequentialLayouter()

Method Detail

canLayout

public boolean canLayout(LayoutGraph graph)

Description copied from interface: Layouter

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

Specified by:

canLayout in interface Layouter

doLayout

public void doLayout(LayoutGraph graph)

Description copied from interface: Layouter

Main layout routine that assigns new layout information to the given graph.

Specified by:

doLayout in interface Layouter

appendLayouter

public void appendLayouter(Layouter layouter)

Appends the given layouter to the end of the layouter chain.

Parameters:

layouter - the layouter that should be appended to the chain.

appendLayouters

public void appendLayouters(List layouters)

Appends the specified layouters to the end of the layouter chain.

Parameters:

layouters - the layouters that should be appended to the chain.

getLayouters

public List getLayouters()

Returns a list of the layouters that are currently in the layout chain.

Returns:

a list of the layouters that are currently in the layout chain or an empty list.

setLayouters

public void setLayouters(List layouters)

Sets the given list of layouters as the layouter chain. Note: this will overwrite the current chain.

Parameters:

layouters - a list of layouters that shall be run one after the other.

clearLayouterChain

public void clearLayouterChain()

Clears the layouter chain and therefore removes all layouters.