edu.uci.ics.jung.visualization.transform
Class MutableAffineTransformer

java.lang.Object
  edu.uci.ics.jung.visualization.transform.AffineTransformer
      edu.uci.ics.jung.visualization.transform.MutableAffineTransformer

All Implemented Interfaces:

BidirectionalTransformer, MutableTransformer, ShapeTransformer, ChangeEventSupport

public class MutableAffineTransformer
extends AffineTransformer
implements MutableTransformer, ShapeTransformer, ChangeEventSupport

Provides methods to mutate the AffineTransform used by AffineTransformer base class to map points from one coordinate system to another.

Author:

Tom Nelson

Field Summary

protected ChangeEventSupport

changeSupport

Fields inherited from class edu.uci.ics.jung.visualization.transform.AffineTransformer

inverse, transform

Constructor Summary

MutableAffineTransformer()
create an instance that does not transform points

MutableAffineTransformer(AffineTransform transform)
Create an instance with the supplied transform

Method Summary

void	addChangeListener(ChangeListener l) Adds a ChangeListener.
void	concatenate(AffineTransform xform)
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().
void	preConcatenate(AffineTransform xform)
void	removeChangeListener(ChangeListener l) Removes a ChangeListener.
void	rotate(double radians, double x, double y) rotates the current transform at the supplied points
void	rotate(double theta, Point2D from) preconcatenates the rotation at the supplied point with the current transform
void	scale(double scalex, double scaley, Point2D from) setter for the scale fires a PropertyChangeEvent with the AffineTransforms representing the previous and new values for scale and offset
void	setScale(double scalex, double scaley, Point2D from) setter for the scale fires a PropertyChangeEvent with the AffineTransforms representing the previous and new values for scale and offset
void	setToIdentity()
void	setTranslate(double tx, double ty) replace the Transform's translate x and y values with the passed values, leaving the scale values unchanged
void	shear(double shx, double shy, Point2D from) shears the transform by passed parameters
String	toString()
void	translate(double offsetx, double offsety) Apply the passed values to the current Transform

Methods inherited from class edu.uci.ics.jung.visualization.transform.AffineTransformer

getInverse, getRotation, getScale, getScaleX, getScaleY, getShearX, getShearY, getTransform, getTranslateX, getTranslateY, inverseTransform, inverseTransform, setTransform, transform, transform

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.uci.ics.jung.visualization.transform.MutableTransformer

getRotation, getScale, getScaleX, getScaleY, getShearX, getShearY, getTransform, getTranslateX, getTranslateY

Methods inherited from interface edu.uci.ics.jung.visualization.transform.shape.ShapeTransformer

inverseTransform, transform

Methods inherited from interface edu.uci.ics.jung.visualization.transform.BidirectionalTransformer

inverseTransform, transform

Field Detail

changeSupport

protected ChangeEventSupport changeSupport

Constructor Detail

MutableAffineTransformer

public MutableAffineTransformer()

create an instance that does not transform points

MutableAffineTransformer

public MutableAffineTransformer(AffineTransform transform)

Create an instance with the supplied transform

Method Detail

toString

public String toString()

Overrides:

toString in class AffineTransformer

scale

public void scale(double scalex,
                  double scaley,
                  Point2D from)

setter for the scale fires a PropertyChangeEvent with the AffineTransforms representing the previous and new values for scale and offset

Specified by:

scale in interface MutableTransformer

Parameters:

scalex -

scaley -

setScale

public void setScale(double scalex,
                     double scaley,
                     Point2D from)

setter for the scale fires a PropertyChangeEvent with the AffineTransforms representing the previous and new values for scale and offset

Specified by:

setScale in interface MutableTransformer

Parameters:

scalex -

scaley -

shear

public void shear(double shx,
                  double shy,
                  Point2D from)

shears the transform by passed parameters

Specified by:

shear in interface MutableTransformer

Parameters:

shx - x value to shear

shy - y value to shear

setTranslate

public void setTranslate(double tx,
                         double ty)

replace the Transform's translate x and y values with the passed values, leaving the scale values unchanged

Specified by:

setTranslate in interface MutableTransformer

Parameters:

tx - the x value

ty - the y value

translate

public void translate(double offsetx,
                      double offsety)

Apply the passed values to the current Transform

Specified by:

translate in interface MutableTransformer

Parameters:

offsetx - the x-value

offsety - the y-value

rotate

public void rotate(double theta,
                   Point2D from)

preconcatenates the rotation at the supplied point with the current transform

Specified by:

rotate in interface MutableTransformer

rotate

public void rotate(double radians,
                   double x,
                   double y)

rotates the current transform at the supplied points

Specified by:

rotate in interface MutableTransformer

concatenate

public void concatenate(AffineTransform xform)

Specified by:

concatenate in interface MutableTransformer

preConcatenate

public void preConcatenate(AffineTransform xform)

Specified by:

preConcatenate in interface MutableTransformer

addChangeListener

public void addChangeListener(ChangeListener l)

Adds a ChangeListener.

Specified by:

addChangeListener in interface ChangeEventSupport

Parameters:

l - the listener to be added

removeChangeListener

public void removeChangeListener(ChangeListener l)

Removes a ChangeListener.

Specified by:

removeChangeListener in interface ChangeEventSupport

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

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.

Specified by:

fireStateChanged in interface ChangeEventSupport

See Also:

EventListenerList

setToIdentity

public void setToIdentity()

Specified by:

setToIdentity in interface MutableTransformer