com.jhlabs.image
Class TransitionFilter

java.lang.Object
  com.jhlabs.image.AbstractBufferedImageOp
      com.jhlabs.image.TransitionFilter

All Implemented Interfaces:

BufferedImageOp, Cloneable

public class TransitionFilter
extends AbstractBufferedImageOp

A filter which uses another filter to perform a transition. e.g. to create a blur transition, you could write: new TransitionFilter( new BoxBlurFilter(), "radius", 0, 100 );

Field Summary

protected BufferedImageOp	filter The filter used for the transition.
protected float	maxValue The end value for the filter property.
protected float	minValue The start value for the filter property.

Constructor Summary

TransitionFilter(BufferedImageOp filter, String property, float minValue, float maxValue)
Construct a TransitionFilter.

Method Summary

BufferedImage	filter(BufferedImage src, BufferedImage dst)
BufferedImage	getDestination() Get the destination image.
float	getTransition() Get the transition of the image.
void	prepareFilter(float transition) Prepare the filter for the transiton at a given time.
void	setDestination(BufferedImage destination) Set the destination image.
void	setTransition(float transition) Set the transition of the image in the range 0..1.
String	toString()

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB

Methods inherited from class java.lang.Object

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

Field Detail

filter

protected BufferedImageOp filter

The filter used for the transition.

minValue

protected float minValue

The start value for the filter property.

maxValue

protected float maxValue

The end value for the filter property.

Constructor Detail

TransitionFilter

public TransitionFilter(BufferedImageOp filter,
                        String property,
                        float minValue,
                        float maxValue)

Construct a TransitionFilter.

Parameters:

filter - the filter to use

property - the filter property which is changed over the transition

minValue - the start value for the filter property

maxValue - the end value for the filter property

Method Detail

setTransition

public void setTransition(float transition)

Set the transition of the image in the range 0..1.

Parameters:

transition - the transition

See Also:

getTransition()

getTransition

public float getTransition()

Get the transition of the image.

Returns:

the transition

See Also:

setTransition(float)

setDestination

public void setDestination(BufferedImage destination)

Set the destination image.

Parameters:

destination - the destination image

See Also:

getDestination()

getDestination

public BufferedImage getDestination()

Get the destination image.

Returns:

the destination image

See Also:

setDestination(java.awt.image.BufferedImage)

prepareFilter

public void prepareFilter(float transition)

Prepare the filter for the transiton at a given time. The default implementation sets the given filter property, but you could override this method to make other changes.

Parameters:

transition - the transition time in the range 0 - 1

filter

public BufferedImage filter(BufferedImage src,
                            BufferedImage dst)

toString

public String toString()

Overrides:

toString in class Object