Source for javax.imageio.ImageTypeSpecifier

   1: /* ImageTypeSpecifier.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.image.ColorModel;
  42: import java.awt.image.RenderedImage;
  43: import java.awt.image.SampleModel;
  44: 
  45: public class ImageTypeSpecifier
  46: {
  47:   protected ColorModel colorModel;
  48:   protected SampleModel sampleModel;
  49: 
  50:   public ImageTypeSpecifier(ColorModel colorModel, SampleModel sampleModel)
  51:   {
  52:     if (colorModel == null)
  53:       throw new IllegalArgumentException("colorModel may not be null");
  54: 
  55:     if (sampleModel == null)
  56:       throw new IllegalArgumentException("sampleModel may not be null");
  57: 
  58:     if (!colorModel.isCompatibleSampleModel(sampleModel))
  59:       throw new IllegalArgumentException
  60:         ("sample Model not compatible with colorModel");
  61:     
  62:     this.colorModel = colorModel;
  63:     this.sampleModel = sampleModel;
  64:   }
  65: 
  66:   public ImageTypeSpecifier(RenderedImage image)
  67:   {
  68:     if (image == null)
  69:       throw new IllegalArgumentException("image may not be null");
  70:     
  71:     this.colorModel = image.getColorModel();
  72:     this.sampleModel = image.getSampleModel();
  73:   }
  74: 
  75:   public ColorModel getColorModel()
  76:   {
  77:     return colorModel;
  78:   }
  79: 
  80:   public int getNumBands()
  81:   {
  82:     return sampleModel.getNumBands();
  83:   }
  84: 
  85:   public int getNumComponents()
  86:   {
  87:     return colorModel.getNumComponents();
  88:   }
  89: 
  90:   public SampleModel getSampleModel()
  91:   {
  92:     return sampleModel;
  93:   }
  94: }