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 }