gcc/libjava/javax/imageio/ImageReadParam.java

/* ImageReadParam.java --
   Copyright (C) 2004  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
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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.

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along with GNU Classpath; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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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
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terms of your choice, provided that you also meet, for each linked
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package javax.imageio;

import java.awt.Dimension;
import java.awt.image.BufferedImage;

/**
 * @author Michel Koch (konqueror@gmx.de)
 */
public class ImageReadParam extends IIOParam
{
  protected boolean canSetSourceRenderSize;
  protected BufferedImage destination;
  protected int[] destinationBands;
  protected int minProgressivePass;
  protected int numProgressivePasses = Integer.MAX_VALUE;
  protected Dimension sourceRenderSize;

  public ImageReadParam()
  {
  }

  public boolean canSetSourceRenderSize()
  {
    return canSetSourceRenderSize;
  }

  public BufferedImage getDestination()
  {
    return destination;
  }

  public int[] getDestinationBands()
  {
    return destinationBands;
  }

  public int getSourceMaxProgressivePass()
  {
    if (getSourceNumProgressivePasses() == Integer.MAX_VALUE)
      return Integer.MAX_VALUE;

    return getSourceMinProgressivePass() + getSourceNumProgressivePasses() - 1;
  }

  public int getSourceMinProgressivePass()
  {
    return minProgressivePass;
  }

  public int getSourceNumProgressivePasses()
  {
    return numProgressivePasses;
  }

  public Dimension getSourceRenderSize()
  {
    return sourceRenderSize;
  }

  public void setDestination(BufferedImage destination)
  {
    this.destination = destination;
  }

  public void setDestinationBands(int[] destinationBands)
  {
    this.destinationBands = destinationBands;
  }

  public void setSourceProgressivePasses(int minPass, int numPasses)
  {
    this.minProgressivePass = minPass;
    this.numProgressivePasses = numPasses;
  }
  
  public void setSourceRenderSize(Dimension size)
    throws UnsupportedOperationException
  {
    if (! canSetSourceRenderSize())
      throw new UnsupportedOperationException
	("setting source render size not supported");
    
    if (size.width <= 0 || size.height <= 0)
      throw new IllegalArgumentException("negative dimension not allowed");
    
    sourceRenderSize = size;
  }
}