BasicTransformer

java.lang.Object
- edu.uci.ics.jung.visualization.BasicTransformer

All Implemented Interfaces:

MultiLayerTransformer, BidirectionalTransformer, ShapeTransformer, ChangeEventSupport, java.util.EventListener, javax.swing.event.ChangeListener
```
public class BasicTransformer
extends java.lang.Object
implements MultiLayerTransformer, ShapeTransformer, javax.swing.event.ChangeListener, ChangeEventSupport
```
A basic implementation of the MultiLayerTransformer interface that provides two Layers: VIEW and LAYOUT. It also provides ChangeEventSupport

Field Summary

Fields
Modifier and Type Field and Description

protected ChangeEventSupport changeSupport

protected MutableTransformer layoutTransformer

protected MutableTransformer viewTransformer

Fields
Modifier and Type	Field and Description
`protected ChangeEventSupport`	`changeSupport`
`protected MutableTransformer`	`layoutTransformer`
`protected MutableTransformer`	`viewTransformer`

Constructor Summary

Constructors
Constructor and Description

BasicTransformer()
Creates an instance and notifies the view and layout transformers to listen to changes published by this instance.

Constructors
Constructor and Description
`BasicTransformer()` Creates an instance and notifies the view and layout transformers to listen to changes published by this instance.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addChangeListener(javax.swing.event.ChangeListener l)`
`void`	`fireStateChanged()`
`javax.swing.event.ChangeListener[]`	`getChangeListeners()` Returns an array of all the `ChangeListener`s added with addChangeListener().
`protected MutableTransformer`	`getLayoutTransformer()`
`MutableTransformer`	`getTransformer(Layer layer)`
`protected MutableTransformer`	`getViewTransformer()`
`protected java.awt.geom.Point2D`	`inverseLayoutTransform(java.awt.geom.Point2D p)`
`protected java.awt.Shape`	`inverseLayoutTransform(java.awt.Shape shape)`
`java.awt.geom.Point2D`	`inverseTransform(Layer layer, java.awt.geom.Point2D p)`
`java.awt.Shape`	`inverseTransform(Layer layer, java.awt.Shape shape)`
`java.awt.geom.Point2D`	`inverseTransform(java.awt.geom.Point2D p)` convert the supplied screen coordinate to the graph coordinate.
`java.awt.Shape`	`inverseTransform(java.awt.Shape shape)`
`protected java.awt.geom.Point2D`	`inverseViewTransform(java.awt.geom.Point2D p)`
`protected java.awt.Shape`	`inverseViewTransform(java.awt.Shape shape)`
`protected java.awt.geom.Point2D`	`layoutTransform(java.awt.geom.Point2D p)`
`protected java.awt.Shape`	`layoutTransform(java.awt.Shape shape)`
`void`	`removeChangeListener(javax.swing.event.ChangeListener l)` Removes a ChangeListener.
`protected void`	`setLayoutTransformer(MutableTransformer transformer)`
`void`	`setToIdentity()`
`void`	`setTransformer(Layer layer, MutableTransformer transformer)`
`protected void`	`setViewTransformer(MutableTransformer transformer)`
`void`	`stateChanged(javax.swing.event.ChangeEvent e)`
`java.awt.geom.Point2D`	`transform(Layer layer, java.awt.geom.Point2D p)`
`java.awt.Shape`	`transform(Layer layer, java.awt.Shape shape)`
`java.awt.geom.Point2D`	`transform(java.awt.geom.Point2D p)` convert the supplied graph coordinate to the screen coordinate
`java.awt.Shape`	`transform(java.awt.Shape shape)` map a shape from graph coordinate system to the screen coordinate system
`protected java.awt.geom.Point2D`	`viewTransform(java.awt.geom.Point2D p)`
`protected java.awt.Shape`	`viewTransform(java.awt.Shape shape)`

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

- Field Detail
  - changeSupport
```
protected ChangeEventSupport changeSupport
```
  - viewTransformer
```
protected MutableTransformer viewTransformer
```
  - layoutTransformer
```
protected MutableTransformer layoutTransformer
```
- Constructor Detail
  - BasicTransformer
```
public BasicTransformer()
```
    Creates an instance and notifies the view and layout transformers to listen to changes published by this instance.
- Method Detail
  - setViewTransformer
```
protected void setViewTransformer(MutableTransformer transformer)
```
    See Also:
    edu.uci.ics.jung.visualization.MultiLayerTransformer#setViewTransformer(edu.uci.ics.jung.visualization.transform.MutableTransformer)
  - setLayoutTransformer
```
protected void setLayoutTransformer(MutableTransformer transformer)
```
  - getLayoutTransformer
```
protected MutableTransformer getLayoutTransformer()
```
  - getViewTransformer
```
protected MutableTransformer getViewTransformer()
```
  - inverseTransform
```
public java.awt.geom.Point2D inverseTransform(java.awt.geom.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 java.awt.geom.Point2D inverseViewTransform(java.awt.geom.Point2D p)
```
  - inverseLayoutTransform
```
protected java.awt.geom.Point2D inverseLayoutTransform(java.awt.geom.Point2D p)
```
  - transform
```
public java.awt.geom.Point2D transform(java.awt.geom.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 java.awt.geom.Point2D viewTransform(java.awt.geom.Point2D p)
```
  - layoutTransform
```
protected java.awt.geom.Point2D layoutTransform(java.awt.geom.Point2D p)
```
  - inverseTransform
```
public java.awt.Shape inverseTransform(java.awt.Shape shape)
```
    Specified by:
    
    inverseTransform in interface BidirectionalTransformer
    
    Specified by:
    
    inverseTransform in interface ShapeTransformer
    
    Returns:
  - inverseViewTransform
```
protected java.awt.Shape inverseViewTransform(java.awt.Shape shape)
```
  - inverseLayoutTransform
```
protected java.awt.Shape inverseLayoutTransform(java.awt.Shape shape)
```
  - transform
```
public java.awt.Shape transform(java.awt.Shape shape)
```
    Description copied from interface: ShapeTransformer
    
    map a shape from graph coordinate system to the screen coordinate system
    
    Specified by:
    
    transform in interface BidirectionalTransformer
    
    Specified by:
    
    transform in interface ShapeTransformer
    
    Returns:
    a GeneralPath (Shape) representing the screen points of the shape
  - viewTransform
```
protected java.awt.Shape viewTransform(java.awt.Shape shape)
```
  - layoutTransform
```
protected java.awt.Shape layoutTransform(java.awt.Shape shape)
```
  - setToIdentity
```
public void setToIdentity()
```
    Specified by:
    
    setToIdentity in interface MultiLayerTransformer
  - addChangeListener
```
public void addChangeListener(javax.swing.event.ChangeListener l)
```
    Specified by:
    
    addChangeListener in interface ChangeEventSupport
  - removeChangeListener
```
public void removeChangeListener(javax.swing.event.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 javax.swing.event.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(javax.swing.event.ChangeEvent e)
```
    Specified by:
    
    stateChanged in interface javax.swing.event.ChangeListener
  - getTransformer
```
public MutableTransformer getTransformer(Layer layer)
```
    Specified by:
    
    getTransformer in interface MultiLayerTransformer
    
    Returns:
    the layoutTransformer
  - inverseTransform
```
public java.awt.geom.Point2D inverseTransform(Layer layer,
                                     java.awt.geom.Point2D p)
```
    Specified by:
    
    inverseTransform in interface MultiLayerTransformer
  - setTransformer
```
public void setTransformer(Layer layer,
                  MutableTransformer transformer)
```
    Specified by:
    
    setTransformer in interface MultiLayerTransformer
    
    See Also:
    edu.uci.ics.jung.visualization.VisualizationServer#setViewTransformer(edu.uci.ics.jung.visualization.transform.MutableTransformer)
  - transform
```
public java.awt.geom.Point2D transform(Layer layer,
                              java.awt.geom.Point2D p)
```
    Specified by:
    
    transform in interface MultiLayerTransformer
  - transform
```
public java.awt.Shape transform(Layer layer,
                       java.awt.Shape shape)
```
    Specified by:
    
    transform in interface MultiLayerTransformer
  - inverseTransform
```
public java.awt.Shape inverseTransform(Layer layer,
                              java.awt.Shape shape)
```
    Specified by:
    
    inverseTransform in interface MultiLayerTransformer

Class BasicTransformer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

changeSupport

viewTransformer

layoutTransformer

Constructor Detail

BasicTransformer

Method Detail

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