org.jemmy.image.pixel

Class PixelImageComparator

java.lang.Object

org.jemmy.image.pixel.PixelImageComparator

All Implemented Interfaces:

ImageComparator

public abstract class PixelImageComparator
extends Object
implements ImageComparator

Author:

shura

Constructor Summary

Constructors

Constructor and Description
PixelImageComparator(Environment env)
PixelImageComparator(RasterComparator comparator)

Method Summary

Modifier and Type	Method and Description
static int	arrayIndexOf(Raster.Component[] comps, Raster.Component comp)
protected void	calcDiffColor(Raster.Component[] comps1, double[] colors1, Raster.Component[] comps2, double[] colors2, Raster.Component[] compsRes, double[] colorsRes)
Image	compare(Image image1, Image image2) Checks if images are the same according to whatever comparison logic is used.
WriteableRaster	computeDifference(Raster image1, Raster image2)
static Dimension	computeDiffSize(Raster one, Raster two)
protected abstract WriteableRaster	createDiffRaster(Raster r1, Raster r2)
protected double	getComponentValue(Raster.Component[] components, double[] colors, Raster.Component comp) Returns color component value using its alpha information
String	getID() A string qualifying an image comparison algorithm.
RasterComparator	getRasterComparator()
protected abstract Image	toImage(Raster image)
protected abstract Raster	toRaster(Image image)

Methods inherited from class java.lang.Object

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

Constructor Detail

PixelImageComparator

public PixelImageComparator(RasterComparator comparator)

PixelImageComparator

public PixelImageComparator(Environment env)

Method Detail

getRasterComparator

public RasterComparator getRasterComparator()

computeDiffSize

public static Dimension computeDiffSize(Raster one,
                                        Raster two)

compare

public Image compare(Image image1,
                     Image image2)

Description copied from interface: ImageComparator

Checks if images are the same according to whatever comparison logic is used.

Specified by:

compare in interface ImageComparator

Parameters:

image1 - an image to compare.

image2 - an image to compare.

Returns:

null if images match each other; difference otherwise

computeDifference

public WriteableRaster computeDifference(Raster image1,
                                         Raster image2)

calcDiffColor

protected void calcDiffColor(Raster.Component[] comps1,
                             double[] colors1,
                             Raster.Component[] comps2,
                             double[] colors2,
                             Raster.Component[] compsRes,
                             double[] colorsRes)

getID

public String getID()

Description copied from interface: ImageComparator

A string qualifying an image comparison algorithm. To be used in logs and tools.

Specified by:

getID in interface ImageComparator

Returns:

todo document

toImage

protected abstract Image toImage(Raster image)

toRaster

protected abstract Raster toRaster(Image image)

createDiffRaster

protected abstract WriteableRaster createDiffRaster(Raster r1,
                                                    Raster r2)

arrayIndexOf

public static int arrayIndexOf(Raster.Component[] comps,
                               Raster.Component comp)

getComponentValue

protected double getComponentValue(Raster.Component[] components,
                                   double[] colors,
                                   Raster.Component comp)

Returns color component value using its alpha information

Parameters:

components - available color components

colors - color components values

comp - required color component

Returns:

value of the required color component. If pixel is not opaque, then it is blended with white opaque background