com.alee.graphics.filters
Class OpacityFilter

java.lang.Object
  com.alee.graphics.filters.AbstractBufferedImageOp
      com.alee.graphics.filters.PointFilter
          com.alee.graphics.filters.OpacityFilter

All Implemented Interfaces:

java.awt.image.BufferedImageOp

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.alee.graphics.filters.PointFilter

canFilterIndexColorModel

Constructor Summary

OpacityFilter()
Construct an OpacityFilter with 50% opacity.

OpacityFilter(int opacity)
Construct an OpacityFilter with the given opacity (alpha).

Method Summary

int	filterRGB(int x, int y, int rgb)
int	getOpacity() Get the opacity setting.
void	setOpacity(int opacity) Set the opacity.

Methods inherited from class com.alee.graphics.filters.PointFilter

filter, setDimensions

Methods inherited from class com.alee.graphics.filters.AbstractBufferedImageOp

createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB

Methods inherited from class java.lang.Object

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