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package java.awt;

import java.awt.image.Raster;
import java.awt.image.ColorModel;

The PaintContext interface defines the encapsulated and optimized environment to generate color patterns in device space for fill or stroke operations on a Graphics2D. The PaintContext provides
the necessary colors for Graphics2D operations in the form of a Raster associated with a ColorModel. The PaintContext maintains state for a particular paint operation. In a multi-threaded environment, several contexts can exist simultaneously for a single Paint object. 
See Also:
Paint/**
 * The <code>PaintContext</code> interface defines the encapsulated
 * and optimized environment to generate color patterns in device
 * space for fill or stroke operations on a
 * {@link Graphics2D}.  The <code>PaintContext</code> provides
 * the necessary colors for <code>Graphics2D</code> operations in the
 * form of a {@link Raster} associated with a {@link ColorModel}.
 * The <code>PaintContext</code> maintains state for a particular paint
 * operation.  In a multi-threaded environment, several
 * contexts can exist simultaneously for a single {@link Paint} object.
 * @see Paint
 */

public interface PaintContext {
    
Releases the resources allocated for the operation.
/**
     * Releases the resources allocated for the operation.
     */
    public void dispose();

    
Returns the ColorModel of the output.  Note that
this ColorModel might be different from the hint specified in the createContext method of Paint.  Not all PaintContext objects are
capable of generating color patterns in an arbitrary
ColorModel.
Returns:
the ColorModel of the output./**
     * Returns the <code>ColorModel</code> of the output.  Note that
     * this <code>ColorModel</code> might be different from the hint
     * specified in the
     * {@link Paint#createContext(ColorModel, Rectangle, Rectangle2D,
AffineTransform, RenderingHints) createContext} method of
     * <code>Paint</code>.  Not all <code>PaintContext</code> objects are
     * capable of generating color patterns in an arbitrary
     * <code>ColorModel</code>.
     * @return the <code>ColorModel</code> of the output.
     */
    ColorModel getColorModel();

    
Returns a Raster containing the colors generated for
the graphics operation.
Params:
x – the x coordinate of the area in device space
for which colors are generated.
y – the y coordinate of the area in device space
for which colors are generated.
w – the width of the area in device space
h – the height of the area in device space
Returns:
a Raster representing the specified
rectangular area and containing the colors generated for
the graphics operation./**
     * Returns a <code>Raster</code> containing the colors generated for
     * the graphics operation.
     * @param x the x coordinate of the area in device space
     * for which colors are generated.
     * @param y the y coordinate of the area in device space
     * for which colors are generated.
     * @param w the width of the area in device space
     * @param h the height of the area in device space
     * @return a <code>Raster</code> representing the specified
     * rectangular area and containing the colors generated for
     * the graphics operation.
     */
    Raster getRaster(int x,
                     int y,
                     int w,
                     int h);

}