org.pushingpixels.flamingo.internal.utils
Class AbstractFilter

java.lang.Object
  org.pushingpixels.flamingo.internal.utils.AbstractFilter

All Implemented Interfaces:

BufferedImageOp

Direct Known Subclasses:

ColorShiftFilter

public abstract class AbstractFilter
extends Object
implements BufferedImageOp

Provides an abstract implementation of the BufferedImageOp interface. This class can be used to created new image filters based on BufferedImageOp.

Constructor Summary

AbstractFilter()

Method Summary

BufferedImage	createCompatibleDestImage(BufferedImage src, ColorModel destCM)
Rectangle2D	getBounds2D(BufferedImage src)
protected int[]	getPixels(BufferedImage img, int x, int y, int w, int h, int[] pixels) Returns an array of integer pixels in the default RGB color model (TYPE_INT_ARGB) and default sRGB color space, from a portion of the image data.
Point2D	getPoint2D(Point2D srcPt, Point2D dstPt)
RenderingHints	getRenderingHints()
protected void	setPixels(BufferedImage img, int x, int y, int w, int h, int[] pixels) Writes a rectangular area of pixels in the destination BufferedImage.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.awt.image.BufferedImageOp

filter

Constructor Detail

AbstractFilter

public AbstractFilter()

Method Detail

getBounds2D

public Rectangle2D getBounds2D(BufferedImage src)

Specified by:

getBounds2D in interface BufferedImageOp

createCompatibleDestImage

public BufferedImage createCompatibleDestImage(BufferedImage src,
                                               ColorModel destCM)

Specified by:

createCompatibleDestImage in interface BufferedImageOp

getPoint2D

public Point2D getPoint2D(Point2D srcPt,
                          Point2D dstPt)

Specified by:

getPoint2D in interface BufferedImageOp

getRenderingHints

public RenderingHints getRenderingHints()

Specified by:

getRenderingHints in interface BufferedImageOp

getPixels

protected int[] getPixels(BufferedImage img,
                          int x,
                          int y,
                          int w,
                          int h,
                          int[] pixels)

Returns an array of integer pixels in the default RGB color model (TYPE_INT_ARGB) and default sRGB color space, from a portion of the image data.

Parameters:

img - Image.

x - The starting X coordinate

y - The starting Y coordinate

w - Width of region.

h - Height of region.

pixels - If not null, the pixels are written here.

Returns:

Array or RGB pixels.

setPixels

protected void setPixels(BufferedImage img,
                         int x,
                         int y,
                         int w,
                         int h,
                         int[] pixels)

Writes a rectangular area of pixels in the destination BufferedImage. Calling this method on an image of type different from BufferedImage.TYPE_INT_ARGB and BufferedImage.TYPE_INT_RGB will unmanage the image.

Parameters:

img - the destination image

x - the x location at which to start storing pixels

y - the y location at which to start storing pixels

w - the width of the rectangle of pixels to store

h - the height of the rectangle of pixels to store

pixels - an array of pixels, stored as integers

Throws:

IllegalArgumentException - is pixels is non-null and of length < w*h