001    /* ImageReadParam.java --
002       Copyright (C) 2004  Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    
039    package javax.imageio;
040    
041    import java.awt.Dimension;
042    import java.awt.image.BufferedImage;
043    
044    /**
045     * DOCUMENT ME
046     *
047     * @author Michel Koch (konqueror@gmx.de)
048     */
049    public 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    }