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/* RasterGraphics.java -- A Graphics2D impl for Rasters

   Copyright (C) 2006 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.java.awt.java2d;

import java.awt.GraphicsConfiguration;

import java.awt.Rectangle;

import java.awt.image.ColorModel;

import java.awt.image.WritableRaster;

/**

 * A Graphics2D implementation that operates on Raster objects. This is

 * primarily used for BufferedImages, but can theoretically be used on

 * arbitrary WritableRasters.

 *

 * @author Roman Kennke (kennke@aicas.com)

 */

public class RasterGraphics

  extends AbstractGraphics2D

{

  /**

   * The raster on which we operate.

   */

  private WritableRaster raster;

  /**

   * The color model of this Graphics instance.

   */

  private ColorModel colorModel;

  public RasterGraphics(WritableRaster r, ColorModel cm)

  {

    super();

    raster = r;

    colorModel = cm;

    init();

  }

  @Override

  public void renderScanline(int y, ScanlineCoverage c)

  {

    if (y >= getDeviceBounds().width)

      return;

    super.renderScanline(y, c);

  }

  /**

   * Returns the color model of this Graphics object.

   *

   * @return the color model of this Graphics object

   */

  protected ColorModel getColorModel()

  {

    return colorModel;

  }

  /**

   * Returns a WritableRaster that is used by this class to perform the

   * rendering in. It is not necessary that the target surface immediately

   * reflects changes in the raster. Updates to the raster are notified via

   * {@link AbstractGraphics2D#updateRaster}.

   *

   * @return the destination raster

   */

  protected WritableRaster getDestinationRaster()

  {

    return raster;

  }

  public GraphicsConfiguration getDeviceConfiguration()

  {

    // TODO Auto-generated method stub

    return null;

  }

  @Override

  protected Rectangle getDeviceBounds()

  {

    return this.raster.getBounds();

  }

}