Source for javax.imageio.ImageReadParam

   1: /* ImageReadParam.java --
   2:    Copyright (C) 2004  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package javax.imageio;
  40: 
  41: import java.awt.Dimension;
  42: import java.awt.image.BufferedImage;
  43: 
  44: /**
  45:  * DOCUMENT ME
  46:  *
  47:  * @author Michel Koch (konqueror@gmx.de)
  48:  */
  49: public class ImageReadParam extends IIOParam
  50: {
  51:   protected boolean canSetSourceRenderSize;
  52:   protected BufferedImage destination;
  53:   protected int[] destinationBands;
  54:   protected int minProgressivePass;
  55:   protected int numProgressivePasses = Integer.MAX_VALUE;
  56:   protected Dimension sourceRenderSize;
  57: 
  58:   public ImageReadParam()
  59:   {
  60:   }
  61: 
  62:   public boolean canSetSourceRenderSize()
  63:   {
  64:     return canSetSourceRenderSize;
  65:   }
  66: 
  67:   public BufferedImage getDestination()
  68:   {
  69:     return destination;
  70:   }
  71: 
  72:   public int[] getDestinationBands()
  73:   {
  74:     return destinationBands;
  75:   }
  76: 
  77:   public int getSourceMaxProgressivePass()
  78:   {
  79:     if (getSourceNumProgressivePasses() == Integer.MAX_VALUE)
  80:       return Integer.MAX_VALUE;
  81: 
  82:     return getSourceMinProgressivePass() + getSourceNumProgressivePasses() - 1;
  83:   }
  84: 
  85:   public int getSourceMinProgressivePass()
  86:   {
  87:     return minProgressivePass;
  88:   }
  89: 
  90:   public int getSourceNumProgressivePasses()
  91:   {
  92:     return numProgressivePasses;
  93:   }
  94: 
  95:   public Dimension getSourceRenderSize()
  96:   {
  97:     return sourceRenderSize;
  98:   }
  99: 
 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: }