Package org.apache.pdfbox.pdmodel.graphics.blend

Class BlendComposite

java.lang.Object

org.apache.pdfbox.pdmodel.graphics.blend.BlendComposite

All Implemented Interfaces:

Composite

public final class BlendComposite
extends Object
implements Composite

AWT composite for blend modes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	BlendComposite.BlendCompositeContext

Field Summary

Fields

Modifier and Type	Field	Description
private final BlendMode	blendMode
private final float	constantAlpha
private static final org.apache.commons.logging.Log	LOG	Log instance.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BlendComposite(BlendMode blendMode, float constantAlpha)

Method Summary

Modifier and Type	Method	Description
CompositeContext	createContext(ColorModel srcColorModel, ColorModel dstColorModel, RenderingHints hints)
static Composite	getInstance(BlendMode blendMode, float constantAlpha)	Creates a blend composite

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.apache.commons.logging.Log LOG

Log instance.

blendMode

private final BlendMode blendMode

constantAlpha

private final float constantAlpha

Constructor Details

BlendComposite

private BlendComposite(BlendMode blendMode,
 float constantAlpha)

Method Details

getInstance

public static Composite getInstance(BlendMode blendMode,
 float constantAlpha)

Creates a blend composite

Parameters:

blendMode - Desired blend mode

constantAlpha - Constant alpha, must be in the inclusive range [0.0...1.0] or it will be clipped.

Returns:

a blend composite.

Throws:

IllegalArgumentException - if blendMode is null.

createContext

public CompositeContext createContext(ColorModel srcColorModel,
 ColorModel dstColorModel,
 RenderingHints hints)

Specified by:

createContext in interface Composite