java.lang.Object

edu.uci.ics.jung.visualization.BasicTransformer

All Implemented Interfaces:: MultiLayerTransformer, BidirectionalTransformer, ShapeTransformer, ChangeEventSupport, EventListener, ChangeListener

public class BasicTransformer extends Object implements MultiLayerTransformer, ShapeTransformer, ChangeListener, ChangeEventSupport

A basic implementation of the MultiLayerTransformer interface that provides two Layers: VIEW and LAYOUT. It also provides ChangeEventSupport

Author:: Tom Nelson - tomnelson@dev.java.net

Field Summary

Fields

Modifier and Type

Field

Description

protected ChangeEventSupport

changeSupport

protected MutableTransformer

layoutTransformer

protected MutableTransformer

viewTransformer
Constructor Summary

Constructors

Constructor

Description

BasicTransformer()

Creates an instance and notifies the view and layout Functions to listen to changes published by this instance.
Method Summary

Modifier and Type

Method

Description

void

addChangeListener(ChangeListener l)

void

fireStateChanged()

ChangeListener[]

getChangeListeners()

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

protected MutableTransformer

getLayoutTransformer()

MutableTransformer

getTransformer(Layer layer)

protected MutableTransformer

getViewTransformer()

protected Point2D

inverseLayoutTransform(Point2D p)

protected Shape

inverseLayoutTransform(Shape shape)

Point2D

inverseTransform(Layer layer, Point2D p)

Shape

inverseTransform(Layer layer, Shape shape)

Point2D

inverseTransform(Point2D p)

convert the supplied screen coordinate to the graph coordinate.

Shape

inverseTransform(Shape shape)

protected Point2D

inverseViewTransform(Point2D p)

protected Shape

inverseViewTransform(Shape shape)

protected Point2D

layoutTransform(Point2D p)

protected Shape

layoutTransform(Shape shape)

void

removeChangeListener(ChangeListener l)

Removes a ChangeListener.

protected void

setLayoutTransformer(MutableTransformer Function)

void

setToIdentity()

void

setTransformer(Layer layer, MutableTransformer Function)

protected void

setViewTransformer(MutableTransformer Function)

void

stateChanged(ChangeEvent e)

Point2D

transform(Layer layer, Point2D p)

Shape

transform(Layer layer, Shape shape)

Point2D

transform(Point2D p)

convert the supplied graph coordinate to the screen coordinate

Shape

transform(Shape shape)

map a shape from graph coordinate system to the screen coordinate system

protected Point2D

viewTransform(Point2D p)

protected Shape

viewTransform(Shape shape)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- changeSupport
  
  protected ChangeEventSupport changeSupport
- viewTransformer
  
  protected MutableTransformer viewTransformer
- layoutTransformer
  
  protected MutableTransformer layoutTransformer
Constructor Details
- BasicTransformer
  
  public BasicTransformer()
  
  Creates an instance and notifies the view and layout Functions to listen to changes published by this instance.
Method Details
- setViewTransformer
  
  protected void setViewTransformer(MutableTransformer Function)
- setLayoutTransformer
  
  protected void setLayoutTransformer(MutableTransformer Function)
- getLayoutTransformer
  
  protected MutableTransformer getLayoutTransformer()
- getViewTransformer
  
  protected MutableTransformer getViewTransformer()
- inverseTransform
  
  public Point2D inverseTransform(Point2D p)
  
  Description copied from interface: BidirectionalTransformer
  
  convert the supplied screen coordinate to the graph coordinate.
  
  Specified by:
  
  inverseTransform in interface BidirectionalTransformer
  
  Parameters:
  
  p - screen point to convert
  
  Returns:
  
  the graph point
- inverseViewTransform
  
  protected Point2D inverseViewTransform(Point2D p)
- inverseLayoutTransform
  
  protected Point2D inverseLayoutTransform(Point2D p)
- transform
  
  public Point2D transform(Point2D p)
  
  Description copied from interface: BidirectionalTransformer
  
  convert the supplied graph coordinate to the screen coordinate
  
  Specified by:
  
  transform in interface BidirectionalTransformer
  
  Parameters:
  
  p - graph point to convert
  
  Returns:
  
  screen point
- viewTransform
  
  protected Point2D viewTransform(Point2D p)
- layoutTransform
  
  protected Point2D layoutTransform(Point2D p)
- inverseTransform
  
  public Shape inverseTransform(Shape shape)
  
  Specified by:
  
  inverseTransform in interface ShapeTransformer
- inverseViewTransform
  
  protected Shape inverseViewTransform(Shape shape)
- inverseLayoutTransform
  
  protected Shape inverseLayoutTransform(Shape shape)
- transform
  
  public Shape transform(Shape shape)
  
  Description copied from interface: ShapeTransformer
  
  map a shape from graph coordinate system to the screen coordinate system
  
  Specified by:
  
  transform in interface ShapeTransformer
  
  Parameters:
  
  shape - the Shape to transform
  
  Returns:
  
  a GeneralPath (Shape) representing the screen points of the shape
- viewTransform
  
  protected Shape viewTransform(Shape shape)
- layoutTransform
  
  protected Shape layoutTransform(Shape shape)
- setToIdentity
  
  public void setToIdentity()
  
  Specified by:
  
  setToIdentity in interface MultiLayerTransformer
- addChangeListener
  
  public void addChangeListener(ChangeListener l)
  
  Specified by:
  
  addChangeListener in interface ChangeEventSupport
- removeChangeListener
  
  public void removeChangeListener(ChangeListener l)
  
  Description copied from interface: ChangeEventSupport
  
  Removes a ChangeListener.
  
  Specified by:
  
  removeChangeListener in interface ChangeEventSupport
  
  Parameters:
  
  l - the listener to be removed
- getChangeListeners
  
  public ChangeListener[] getChangeListeners()
  
  Description copied from interface: ChangeEventSupport
  
  Returns an array of all the ChangeListeners added with addChangeListener().
  
  Specified by:
  
  getChangeListeners in interface ChangeEventSupport
  
  Returns:
  
  all of the ChangeListeners added or an empty array if no listeners have been added
- fireStateChanged
  
  public void fireStateChanged()
  
  Specified by:
  
  fireStateChanged in interface ChangeEventSupport
- stateChanged
  
  public void stateChanged(ChangeEvent e)
  
  Specified by:
  
  stateChanged in interface ChangeListener
- getTransformer
  
  public MutableTransformer getTransformer(Layer layer)
  
  Specified by:
  
  getTransformer in interface MultiLayerTransformer
- inverseTransform
  
  public Point2D inverseTransform(Layer layer, Point2D p)
  
  Specified by:
  
  inverseTransform in interface MultiLayerTransformer
- setTransformer
  
  public void setTransformer(Layer layer, MutableTransformer Function)
  
  Specified by:
  
  setTransformer in interface MultiLayerTransformer
- transform
  
  public Point2D transform(Layer layer, Point2D p)
  
  Specified by:
  
  transform in interface MultiLayerTransformer
- transform
  
  public Shape transform(Layer layer, Shape shape)
  
  Specified by:
  
  transform in interface MultiLayerTransformer
- inverseTransform
  
  public Shape inverseTransform(Layer layer, Shape shape)
  
  Specified by:
  
  inverseTransform in interface MultiLayerTransformer

Class BasicTransformer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Details

changeSupport

viewTransformer

layoutTransformer

Constructor Details

BasicTransformer

Method Details

setViewTransformer

setLayoutTransformer

getLayoutTransformer

getViewTransformer

inverseTransform

inverseViewTransform

inverseLayoutTransform

transform

viewTransform

layoutTransform

inverseTransform

inverseViewTransform

inverseLayoutTransform

transform

viewTransform

layoutTransform

setToIdentity

addChangeListener

removeChangeListener

getChangeListeners

fireStateChanged

stateChanged

getTransformer

inverseTransform

setTransformer

transform

transform

inverseTransform