001/* ImageReadParam.java --
002   Copyright (C) 2004  Free Software Foundation, Inc.
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 javax.imageio;
040
041import java.awt.Dimension;
042import java.awt.image.BufferedImage;
043
044/**
045 * DOCUMENT ME
046 *
047 * @author Michel Koch (konqueror@gmx.de)
048 */
049public class ImageReadParam extends IIOParam
050{
051  protected boolean canSetSourceRenderSize;
052  protected BufferedImage destination;
053  protected int[] destinationBands;
054  protected int minProgressivePass;
055  protected int numProgressivePasses = Integer.MAX_VALUE;
056  protected Dimension sourceRenderSize;
057
058  public ImageReadParam()
059  {
060  }
061
062  public boolean canSetSourceRenderSize()
063  {
064    return canSetSourceRenderSize;
065  }
066
067  public BufferedImage getDestination()
068  {
069    return destination;
070  }
071
072  public int[] getDestinationBands()
073  {
074    return destinationBands;
075  }
076
077  public int getSourceMaxProgressivePass()
078  {
079    if (getSourceNumProgressivePasses() == Integer.MAX_VALUE)
080      return Integer.MAX_VALUE;
081
082    return getSourceMinProgressivePass() + getSourceNumProgressivePasses() - 1;
083  }
084
085  public int getSourceMinProgressivePass()
086  {
087    return minProgressivePass;
088  }
089
090  public int getSourceNumProgressivePasses()
091  {
092    return numProgressivePasses;
093  }
094
095  public Dimension getSourceRenderSize()
096  {
097    return sourceRenderSize;
098  }
099
100  public void setDestination(BufferedImage destination)
101  {
102    this.destination = destination;
103  }
104
105  public void setDestinationBands(int[] destinationBands)
106  {
107    this.destinationBands = destinationBands;
108  }
109
110  public void setSourceProgressivePasses(int minPass, int numPasses)
111  {
112    this.minProgressivePass = minPass;
113    this.numProgressivePasses = numPasses;
114  }
115  
116  public void setSourceRenderSize(Dimension size)
117    throws UnsupportedOperationException
118  {
119    if (! canSetSourceRenderSize())
120      throw new UnsupportedOperationException
121        ("setting source render size not supported");
122    
123    if (size.width <= 0 || size.height <= 0)
124      throw new IllegalArgumentException("negative dimension not allowed");
125    
126    sourceRenderSize = size;
127  }
128}