org.pbjar.jxlayer.plaf.ext.transform
Class DefaultTransformModel

java.lang.Object
  org.pbjar.jxlayer.plaf.ext.transform.DefaultTransformModel

All Implemented Interfaces:

TransformModel

public class DefaultTransformModel
extends Object
implements TransformModel

This is an implementation of TransformModel with methods to explicitly set transformation values.

Author:

Piet Blok

Constructor Summary

DefaultTransformModel()

Method Summary

void	addChangeListener(ChangeListener listener) Add a ChangeListener that will be notified when the internal state of this model changes.
protected void	fireChangeEvent(Object oldValue, Object newValue) If {!
AffineTransform	getPreferredTransform(Dimension size, org.jdesktop.jxlayer.JXLayer<?> layer) Get a preferred AffineTransform.
int	getQuadrantRotation() Get the quadrant rotation value.
double	getRotation() Get the rotation value in radians as set by setRotation(double).
double	getScale() Get the scale.
double	getShearX() Get the shearX value as set by setShearX(double); The default value is 0.
double	getShearY() Get the shearY value as set by setShearY(double); The default value is 0.
AffineTransform	getTransform(org.jdesktop.jxlayer.JXLayer<?> layer) Return the currently active AffineTransform.
boolean	isMirror() Get the mirror property.
boolean	isPreserveAspectRatio() Get the preserve aspect ratio value.
boolean	isScaleToPreferredSize() Get the scale to preferred size value.
void	removeChangeListener(ChangeListener listener) Remove a ChangeListener.
void	setMirror(boolean newValue) Set the mirror property.
void	setPreserveAspectRatio(boolean newValue) Set preserve aspect ratio.
void	setQuadrantRotation(int newValue) Set the rotation in quadrants.
void	setRotation(double newValue) Set the rotation in radians.
void	setScale(double newValue) Set a scale.
void	setScaleToPreferredSize(boolean newValue) Set scaleToPreferredSize.
void	setShearX(double newValue) Set the shearX value.
void	setShearY(double newValue) Set the shearY value.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultTransformModel

public DefaultTransformModel()

Method Detail

addChangeListener

public void addChangeListener(ChangeListener listener)

Description copied from interface: TransformModel

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

Specified by:

addChangeListener in interface TransformModel

Parameters:

listener - a ChangeListener

See Also:

TransformModel.removeChangeListener(ChangeListener)

getScale

public double getScale()

Get the scale.

Returns:

the scale

See Also:

setScale(double)

getPreferredTransform

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

Description copied from interface: TransformModel

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.

Specified by:

getPreferredTransform in interface TransformModel

Parameters:

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

layer - the JXLayer.

Returns:

a AffineTransform instance or null

getQuadrantRotation

public int getQuadrantRotation()

Get the quadrant rotation value. The default value is 0.

Returns:

the quadrant rotation value

See Also:

setQuadrantRotation(int)

getRotation

public double getRotation()

Get the rotation value in radians as set by setRotation(double). The default value is 0.

Returns:

the rotation value.

See Also:

setRotation(double)

getShearX

public double getShearX()

Get the shearX value as set by setShearX(double); The default value is 0.

Returns:

the shear x value

See Also:

setShearX(double)

getShearY

public double getShearY()

Get the shearY value as set by setShearY(double); The default value is 0.

Returns:

the shear y value

See Also:

setShearY(double)

getTransform

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

Return the currently active AffineTransform. Recalculate if needed.

Specified by:

getTransform in interface TransformModel

Parameters:

layer - the JXLayer

Returns:

the currently active AffineTransform

isMirror

public boolean isMirror()

Get the mirror property.

The default value is false.

Returns:

true if the transformation will mirror the view.

See Also:

setMirror(boolean)

isPreserveAspectRatio

public boolean isPreserveAspectRatio()

Get the preserve aspect ratio value.

The default value is true.

Returns:

true if preserving aspect ratio, false otherwise

See Also:

setPreserveAspectRatio(boolean)

isScaleToPreferredSize

public boolean isScaleToPreferredSize()

Get the scale to preferred size value.

The default value is false.

When true, the view is scaled according to the preferred scale, regardless of the size of the JXLayer.

When false, the view is scaled to occupy as much as possible of the size of the JXLayer.

Returns:

true if scale to preferred size, false otherwise

See Also:

setScaleToPreferredSize(boolean)

removeChangeListener

public void removeChangeListener(ChangeListener listener)

Description copied from interface: TransformModel

Remove a ChangeListener.

Specified by:

removeChangeListener in interface TransformModel

Parameters:

listener - a ChangeListener

See Also:

TransformModel.addChangeListener(ChangeListener)

setMirror

public void setMirror(boolean newValue)

Set the mirror property.

The default value is false

Parameters:

newValue - the new value

See Also:

isMirror()

setScale

public void setScale(double newValue)
              throws IllegalArgumentException

Set a scale.

The scale is primarily used to calculate a preferred size. Unless ScaleToPreferredSize is set to true (see setScaleToPreferredSize(boolean) and isScaleToPreferredSize()), actual scaling itself is calculated such that the view occupies as much space as possible on the JXLayer.

The default value is 1.

Parameters:

newValue - the preferred scale

Throws:

IllegalArgumentException - when the argument value is 0

See Also:

getScale()

setPreserveAspectRatio

public void setPreserveAspectRatio(boolean newValue)

Set preserve aspect ratio.

The default value is true.

Parameters:

newValue - the new value

See Also:

isPreserveAspectRatio()

setQuadrantRotation

public void setQuadrantRotation(int newValue)

Set the rotation in quadrants. The default value is 0.

Parameters:

newValue - the number of quadrants

See Also:

getQuadrantRotation()

setRotation

public void setRotation(double newValue)

Set the rotation in radians. The default value is 0.

Parameters:

newValue - the rotation in radians

See Also:

getRotation()

setScaleToPreferredSize

public void setScaleToPreferredSize(boolean newValue)

Set scaleToPreferredSize.

The default value is false.

When true, the view is scaled according to the preferred scale, regardless of the size of the JXLayer.

When false, the view is scaled to occupy as much as possible of the size of the JXLayer.

Parameters:

newValue - the new value

See Also:

isScaleToPreferredSize()

setShearX

public void setShearX(double newValue)

Set the shearX value. The default value is 0.

Parameters:

newValue - the shear x

See Also:

getShearX()

setShearY

public void setShearY(double newValue)

Set the shearY value. The default value is 0.

Parameters:

newValue - the shear y

See Also:

getShearY()

fireChangeEvent

protected void fireChangeEvent(Object oldValue,
                               Object newValue)

If {!oldValue.equals(newValue)}, a ChangeEvent will be fired.

Parameters:

oldValue - an old value

newValue - a new value