com.hfg.svg.filtereffect

Enum ImageBlendingMode

java.lang.Object

java.lang.Enum<ImageBlendingMode>

com.hfg.svg.filtereffect.ImageBlendingMode

All Implemented Interfaces:

Serializable, Comparable<ImageBlendingMode>

public enum ImageBlendingMode
extends Enum<ImageBlendingMode>

Enumeration of SVG (Scalable Vector Graphics) filter effect image blending modes. From http://www.w3.org/TR/2003/REC-SVG11-20030114/filters.html#feBlend:

For all feBlend modes, the result opacity is computed as follows: qr = 1 - (1-qa)*(1-qb) For the compositing formulas below, the following definitions apply: cr = Result color (RGB) - premultiplied qa = Opacity value at a given pixel for image A qb = Opacity value at a given pixel for image B ca = Color (RGB) at a given pixel for image A - premultiplied cb = Color (RGB) at a given pixel for image B - premultiplied The following table provides the list of available image blending modes: Image Blending Mode Formula for computing result color

Image Blending Mode Formula for computing result color

normal	cr = (1 - qa) * cb + ca
multiply	cr = (1-qa)*cb + (1-qb)*ca + ca*cb
screen	cr = cb + ca - ca * cb
darken	cr = Min ((1 - qa) * cb + ca, (1 - qb) * ca + cb)
lighten	cr = Max ((1 - qa) * cb + ca, (1 - qb) * ca + cb)

Enum Constant Summary

Enum Constants

Enum Constant and Description
darken
lighten
multiply
normal
screen

Method Summary

Modifier and Type	Method and Description
static ImageBlendingMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static ImageBlendingMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

normal

public static final ImageBlendingMode normal

multiply

public static final ImageBlendingMode multiply

screen

public static final ImageBlendingMode screen

darken

public static final ImageBlendingMode darken

lighten

public static final ImageBlendingMode lighten

Method Detail

values

public static ImageBlendingMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ImageBlendingMode c : ImageBlendingMode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ImageBlendingMode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null