edu.uci.ics.jung.visualization

Class DefaultVisualizationModel<V,E>

java.lang.Object

edu.uci.ics.jung.visualization.DefaultVisualizationModel<V,E>

All Implemented Interfaces:

ChangeEventSupport, VisualizationModel<V,E>

public class DefaultVisualizationModel<V,E>
extends Object
implements VisualizationModel<V,E>, ChangeEventSupport

The model containing state values for visualizations of graphs. Refactored and extracted from the 1.6.0 version of VisualizationViewer

Author:

Tom Nelson

Field Summary

Fields

Modifier and Type	Field and Description
protected ChangeListener	changeListener listens for changes in the layout, forwards to the viewer
protected Layout<V,E>	layout the layout algorithm currently in use
protected Relaxer	relaxer manages the thread that applies the current layout algorithm

Constructor Summary

Constructors

Constructor and Description
DefaultVisualizationModel(Layout<V,E> layout)
DefaultVisualizationModel(Layout<V,E> layout, Dimension d) Create an instance with the specified layout and dimension.

Method Summary

Modifier and Type	Method and Description
void	addChangeListener(ChangeListener l) Adds a ChangeListener.
void	fireStateChanged() Notifies all listeners that have registered interest for notification on this event type.
ChangeListener[]	getChangeListeners() Returns an array of all the ChangeListeners added with addChangeListener().
Layout<V,E>	getGraphLayout() Returns the current graph layout.
Relaxer	getRelaxer()
void	removeChangeListener(ChangeListener l) Removes a ChangeListener.
void	setGraphLayout(Layout<V,E> layout) set the graph Layout and if it is not already initialized, initialize it to the default VisualizationViewer preferred size of 600x600
void	setGraphLayout(Layout<V,E> layout, Dimension viewSize) Removes the current graph layout, and adds a new one.
void	setRelaxer(VisRunner relaxer)

Methods inherited from class java.lang.Object

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

Field Detail

relaxer

protected Relaxer relaxer

manages the thread that applies the current layout algorithm

layout

protected Layout<V,E> layout

the layout algorithm currently in use

changeListener

protected ChangeListener changeListener

listens for changes in the layout, forwards to the viewer

Constructor Detail

DefaultVisualizationModel

public DefaultVisualizationModel(Layout<V,E> layout)

Parameters:

layout - The Layout to apply, with its associated Graph

DefaultVisualizationModel

public DefaultVisualizationModel(Layout<V,E> layout,
                                 Dimension d)

Create an instance with the specified layout and dimension.

Parameters:

layout - the layout to use

d - The preferred size of the View that will display this graph

Method Detail

setGraphLayout

public void setGraphLayout(Layout<V,E> layout,
                           Dimension viewSize)

Removes the current graph layout, and adds a new one.

Specified by:

setGraphLayout in interface VisualizationModel<V,E>

Parameters:

layout - the new layout to use

viewSize - the size of the View that will display this layout

setGraphLayout

public void setGraphLayout(Layout<V,E> layout)

set the graph Layout and if it is not already initialized, initialize it to the default VisualizationViewer preferred size of 600x600

Specified by:

setGraphLayout in interface VisualizationModel<V,E>

Parameters:

layout - the layout to use

getGraphLayout

public Layout<V,E> getGraphLayout()

Returns the current graph layout.

Specified by:

getGraphLayout in interface VisualizationModel<V,E>

Returns:

the current graph layout

getRelaxer

public Relaxer getRelaxer()

Specified by:

getRelaxer in interface VisualizationModel<V,E>

Returns:

the relaxer

setRelaxer

public void setRelaxer(VisRunner relaxer)

Parameters:

relaxer - the relaxer to set

addChangeListener

public void addChangeListener(ChangeListener l)

Adds a ChangeListener.

Specified by:

addChangeListener in interface ChangeEventSupport

Specified by:

addChangeListener in interface VisualizationModel<V,E>

Parameters:

l - the listener to be added

removeChangeListener

public void removeChangeListener(ChangeListener l)

Removes a ChangeListener.

Specified by:

removeChangeListener in interface ChangeEventSupport

Specified by:

removeChangeListener in interface VisualizationModel<V,E>

Parameters:

l - the listener to be removed

getChangeListeners

public ChangeListener[] getChangeListeners()

Returns an array of all the ChangeListeners added with addChangeListener().

Specified by:

getChangeListeners in interface ChangeEventSupport

Specified by:

getChangeListeners in interface VisualizationModel<V,E>

Returns:

all of the ChangeListeners added or an empty array if no listeners have been added

fireStateChanged

public void fireStateChanged()

Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created. The primary listeners will be views that need to be repainted because of changes in this model instance

Specified by:

fireStateChanged in interface ChangeEventSupport

See Also:

EventListenerList