java.awt.Composite Maven / Gradle / Ivy
/*
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This work corresponds to the API signatures of JSR 217: Personal Basis
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JSR 217 specification, which is available at
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*/
package java.awt;
import java.awt.image.ColorModel;
// PBP/PP
/**
* The Composite interface defines the methods to compose a draw
* primitive with the underlying graphics area.
* After the Composite is set in the
* {@link Graphics2D} context, it combines a shape, text, or an image
* being rendered with the colors that have already been rendered
* according to pre-defined rules.
*
* The composition rules are provided by the classes implementing
* this interface.
*
*
* Instances of classes implementing Composite must be
* immutable because the Graphics2D does not clone
* these objects when they are set as an attribute with the
* setComposite method or when the Graphics2D
* object is cloned. This is to avoid undefined rendering behavior of
* Graphics2D, resulting from the modification of
* the Composite object after it has been set in the
* Graphics2D context.
*
*
* Note that use of Composite is
* {@link Graphics2D#setComposite restricted} in this
* Profile; only instances {@link AlphaComposite} may be used to set
* the Composite of {@link Graphics2D}.
* @see AlphaComposite
*
* @see Graphics2D#setComposite
* @version 10 Feb 1997
*/
public interface Composite
{
// /**
// * Creates a context containing state that is used to perform
// * the compositing operation. In a multi-threaded environment,
// * several contexts can exist simultaneously for a single
// * Composite object.
// * @param srcColorModel the {@link ColorModel} of the source
// * @param dstColorModel the ColorModel of the destination
// * @param hints the hint that the context object uses to choose between
// * rendering alternatives
// * @return the CompositeContext object used to perform the
// * compositing operation.
// */
// public CompositeContext createContext(ColorModel srcColorModel, ColorModel
// dstColorModel, RenderingHints hints);
}