org.pbjar.jxlayer.plaf.ext.transform
Interface TransformModel

All Known Implementing Classes:

DefaultTransformModel

public interface TransformModel

The TransformModel interface specifies the methods the TransformUI will use to interrogate a transformation model.

Author:

Piet Blok

Method Summary

void	addChangeListener(ChangeListener listener) Add a ChangeListener that will be notified when the internal state of this model changes.
AffineTransform	getPreferredTransform(Dimension size, org.jdesktop.jxlayer.JXLayer<?> layer) Get a preferred AffineTransform.
AffineTransform	getTransform(org.jdesktop.jxlayer.JXLayer<?> layer) Get a AffineTransform.
void	removeChangeListener(ChangeListener listener) Remove a ChangeListener.

Method Detail

addChangeListener

void addChangeListener(ChangeListener listener)

Add a ChangeListener that will be notified when the internal state of this model changes.

Parameters:

listener - a ChangeListener

See Also:

removeChangeListener(ChangeListener)

getPreferredTransform

AffineTransform getPreferredTransform(Dimension size,
                                      org.jdesktop.jxlayer.JXLayer<?> layer)

Get a preferred AffineTransform. This method will typically be invoked by programs that calculate a preferred size.

The size argument will be used to compute anchor values for some types of transformations. If the size argument is null a value of (0,0) is used for the anchor.

Parameters:

size - a Dimension instance to be used for an anchor or null

layer - the JXLayer.

Returns:

a AffineTransform instance or null

getTransform

AffineTransform getTransform(org.jdesktop.jxlayer.JXLayer<?> layer)

Get a AffineTransform. This method will typically be invoked by programs that are about to prepare a Graphics object.

Parameters:

layer - the JXLayer

Returns:

a AffineTransform or null

removeChangeListener

void removeChangeListener(ChangeListener listener)

Remove a ChangeListener.

Parameters:

listener - a ChangeListener

See Also:

addChangeListener(ChangeListener)