001/* PaintContext.java -- the environment for performing a paint operation
002   Copyright (C) 2000, 2002 Free Software Foundation
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package java.awt;
040
041import java.awt.image.ColorModel;
042import java.awt.image.Raster;
043
044/**
045 * @author Warren Levy (warrenl@cygnus.com)
046 * @see Paint
047 * @since 1.1
048 * @status updated to 1.4
049 */
050public interface PaintContext
051{
052  /**
053   * Release the resources allocated for the paint.
054   */
055  void dispose();
056
057  /**
058   * Return the color model of this context. It may be different from the
059   * hint specified during createContext, as not all contexts can generate
060   * color patterns in an arbitrary model.
061   *
062   * @return the context color model
063   */
064  ColorModel getColorModel();
065
066  /**
067   * Return a raster containing the colors for the graphics operation.
068   *
069   * @param x the x-coordinate, in device space
070   * @param y the y-coordinate, in device space
071   * @param w the width, in device space
072   * @param h the height, in device space
073   * @return a raster for the given area and color
074   */
075  Raster getRaster(int x, int y, int w, int h);
076} // interface PaintContext