Subversion Repositories scarts

/* Copyright (C) 2000, 2002, 2003  Free Software Foundation

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 java.awt.image;

import java.awt.Point;

import java.awt.Rectangle;

/**

 * @author Rolf W. Rasmussen (rolfwr@ii.uib.no)

 */

public class WritableRaster extends Raster

{

  protected WritableRaster(SampleModel sampleModel, Point origin)

  {

    this(sampleModel, sampleModel.createDataBuffer(), origin);

  }

  protected WritableRaster(SampleModel sampleModel,

                           DataBuffer dataBuffer, Point origin)

  {

    this(sampleModel, dataBuffer,

         new Rectangle(origin != null ? origin.x : 0,

                       origin != null ? origin.y : 0,

                       sampleModel.getWidth(), sampleModel.getHeight()),

         origin,

         null);

  }

  protected WritableRaster(SampleModel sampleModel,

                           DataBuffer dataBuffer,

                           Rectangle aRegion,

                           Point sampleModelTranslate,

                           WritableRaster parent)

  {

    super(sampleModel, dataBuffer, aRegion, sampleModelTranslate,

          parent);

  }

  public WritableRaster getWritableParent()

  {

    return (WritableRaster) getParent();

  }

  public WritableRaster createWritableTranslatedChild(int childMinX,

                                                      int childMinY)

  {

    // This mirrors the code from the super class

    int tcx = sampleModelTranslateX - minX + childMinX;

    int tcy = sampleModelTranslateY - minY + childMinY;

    return new WritableRaster(sampleModel, dataBuffer,

                              new Rectangle(childMinX, childMinY,

                                            width, height),

                              new Point(tcx, tcy),

                              this);

  }

  public WritableRaster createWritableChild(int parentX,

                                            int parentY,

                                            int w, int h,

                                            int childMinX,

                                            int childMinY,

                                            int[] bandList)

  {

    // This mirrors the code from the super class

    // FIXME: Throw RasterFormatException if child bounds extends

    // beyond the bounds of this raster.

    SampleModel sm = (bandList == null) ?

      sampleModel :

      sampleModel.createSubsetSampleModel(bandList);

    return new

      WritableRaster(sm, dataBuffer,

                     new Rectangle(childMinX, childMinY,

                                   w, h),

                     new Point(sampleModelTranslateX+childMinX-parentX,

                               sampleModelTranslateY+childMinY-parentY),

                     this);

  }

  public void setDataElements(int x, int y, Object inData)

  {

    sampleModel.setDataElements(x-sampleModelTranslateX,

                                y-sampleModelTranslateY,

                                inData, dataBuffer);

  }

  public void setDataElements(int x, int y, Raster inRaster)

  {

    Object dataElements = getDataElements(0, 0,

                                          inRaster.getWidth(),

                                          inRaster.getHeight(),

                                          null);

    setDataElements(x, y, dataElements);

  }

  public void setDataElements(int x, int y, int w, int h,

                              Object inData)

  {

    sampleModel.setDataElements(x-sampleModelTranslateX,

                                y-sampleModelTranslateY,

                                w, h, inData, dataBuffer);

  }

  public void setRect(Raster srcRaster)

  {

    setRect(0, 0, srcRaster);

  }

  public void setRect(int dx, int dy, Raster srcRaster)

  {

    Rectangle targetUnclipped = new Rectangle(srcRaster.getMinX()+dx,

                                              srcRaster.getMinY()+dy,

                                              srcRaster.getWidth(),

                                              srcRaster.getHeight());

    Rectangle target = getBounds().intersection(targetUnclipped);

    if (target.isEmpty()) return;

    int sx = target.x - dx;

    int sy = target.y - dy;

    // FIXME: Do tests on rasters and use get/set data instead.

    /* The JDK documentation seems to imply this implementation.

       (the trucation of higher bits), but an implementation using

       get/setDataElements would be more efficient. None of the

       implementations would do anything sensible when the sample

       models don't match.

       But this is probably not the place to consider such

       optimizations.*/

    int[] pixels = srcRaster.getPixels(sx, sy,

                                       target.width, target.height,

                                       (int[]) null);

    setPixels(target.x, target.y, target.width, target.height, pixels);

  }

  public void setPixel(int x, int y, int[] iArray)

  {

    sampleModel.setPixel(x-sampleModelTranslateX,

                         y-sampleModelTranslateY,

                         iArray, dataBuffer);

  }

  public void setPixel(int x, int y, float[] fArray)

  {

    sampleModel.setPixel(x-sampleModelTranslateX,

                         y-sampleModelTranslateY,

                         fArray, dataBuffer);

  }

  public void setPixel(int x, int y, double[] dArray)

  {

    sampleModel.setPixel(x-sampleModelTranslateX,

                         y-sampleModelTranslateY,

                         dArray, dataBuffer);

  }

  public void setPixels(int x, int y, int w, int h, int[] iArray)

  {

    sampleModel.setPixels(x-sampleModelTranslateX,

                          y-sampleModelTranslateY,

                          w, h, iArray, dataBuffer);

  }

  public void setPixels(int x, int y, int w, int h, float[] fArray)

  {

    sampleModel.setPixels(x-sampleModelTranslateX,

                          y-sampleModelTranslateY,

                          w, h, fArray, dataBuffer);

  }

  public void setPixels(int x, int y, int w, int h, double[] dArray)

  {

    sampleModel.setPixels(x-sampleModelTranslateX,

                          y-sampleModelTranslateY,

                          w, h, dArray, dataBuffer);

  }

  public void setSample(int x, int y, int b, int s)

  {

    sampleModel.setSample(x-sampleModelTranslateX,

                          y-sampleModelTranslateY,

                          b, s, dataBuffer);

  }

  public void setSample(int x, int y, int b, float s)

  {

    sampleModel.setSample(x-sampleModelTranslateX,

                          y-sampleModelTranslateY,

                          b, s, dataBuffer);

  }

  public void setSample(int x, int y, int b, double s)

  {

    sampleModel.setSample(x-sampleModelTranslateX,

                          y-sampleModelTranslateY,

                          b, s, dataBuffer);

  }

  public void setSamples(int x, int y, int w, int h, int b,

                         int[] iArray)

  {

    sampleModel.setSamples(x-sampleModelTranslateX,

                           y-sampleModelTranslateY,

                           w, h, b, iArray, dataBuffer);

  }

  public void setSamples(int x, int y, int w, int h, int b,

                         float[] fArray)

  {

    sampleModel.setSamples(x-sampleModelTranslateX,

                           y-sampleModelTranslateY,

                           w, h, b, fArray, dataBuffer);

  }

  public void setSamples(int x, int y, int w, int h, int b,

                         double[] dArray)

  {

    sampleModel.setSamples(x-sampleModelTranslateX,

                           y-sampleModelTranslateY,

                           w, h, b, dArray, dataBuffer);

  }

}