charger.layout

Class GraphLayout

Object

charger.layout.GraphLayout

Direct Known Subclasses:

SimpleGraphLayout, SpringGraphLayout

public abstract class GraphLayout
extends Object

Abstract class to specify the basics of a layout class. Perhaps it should be an interface, but this will do for the present.

Author:

Harry S. Delugach (delugach@uah.edu)

Field Summary

Fields

Modifier and Type	Field and Description
protected Graph	graph
protected boolean	verbose

Constructor Summary

Constructors

Constructor and Description
GraphLayout(Graph g) Create an instance of a layout manager.

Method Summary

Modifier and Type	Method and Description
abstract void	copyToGraph() Use the results of the layout procedure and update the graph to reflect the new positions.
boolean	isVerbose() Whether to display debugging and tracing output on the console.
abstract boolean	performLayout() Execute whatever layout procedure is implemented by the class.
void	setVerbose(boolean verbose)

Methods inherited from class Object

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

Field Detail

graph

protected Graph graph

verbose

protected boolean verbose

Constructor Detail

GraphLayout

public GraphLayout(Graph g)

Create an instance of a layout manager.

Parameters:

g - the graph to be laid out.

Method Detail

isVerbose

public boolean isVerbose()

Whether to display debugging and tracing output on the console.

Returns:

true if verbose is turned on; false otherwise

setVerbose

public void setVerbose(boolean verbose)

performLayout

public abstract boolean performLayout()

Execute whatever layout procedure is implemented by the class. This procedure is responsible for performing the layout only.

Returns:

true if all went well; false if something went wrong.

See Also:

copyToGraph()

copyToGraph

public abstract void copyToGraph()

Use the results of the layout procedure and update the graph to reflect the new positions. If no layout has been performed, then do nothing.