com.jhlabs.image

Class OpacityFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.PointFilter

com.jhlabs.image.OpacityFilter

All Implemented Interfaces:

java.awt.image.BufferedImageOp, java.lang.Cloneable

public class OpacityFilter
extends PointFilter

Sets the opacity (alpha) of every pixel in an image to a constant value.

Field Summary

Fields inherited from class com.jhlabs.image.PointFilter

canFilterIndexColorModel

Constructor Summary

Constructors

Constructor and Description
OpacityFilter() Construct an OpacityFilter with 50% opacity.
OpacityFilter(int opacity) Construct an OpacityFilter with the given opacity (alpha).

Method Summary

Modifier and Type	Method and Description
int	filterRGB(int x, int y, int rgb)
int	getOpacity() Get the opacity setting.
void	setOpacity(int opacity) Set the opacity.
java.lang.String	toString()

Methods inherited from class com.jhlabs.image.PointFilter

filter, setDimensions

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

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

Methods inherited from class java.lang.Object

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

Constructor Detail

OpacityFilter

public OpacityFilter()

Construct an OpacityFilter with 50% opacity.

OpacityFilter

public OpacityFilter(int opacity)

Construct an OpacityFilter with the given opacity (alpha).

Parameters:

opacity - the opacity (alpha) in the range 0..255

Method Detail

setOpacity

public void setOpacity(int opacity)

Set the opacity.

Parameters:

opacity - the opacity (alpha) in the range 0..255

See Also:

getOpacity()

getOpacity

public int getOpacity()

Get the opacity setting.

Returns:

the opacity

See Also:

setOpacity(int)

filterRGB

public int filterRGB(int x,
                     int y,
                     int rgb)

Specified by:

filterRGB in class PointFilter

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object