SetGraphicsStateParameters


1   /**
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3    * All rights reserved.
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5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions are met:
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9    *    this list of conditions and the following disclaimer.
10   * 2. Redistributions in binary form must reproduce the above copyright notice,
11   *    this list of conditions and the following disclaimer in the documentation
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14   *    contributors may be used to endorse or promote products derived from this
15   *    software without specific prior written permission.
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31  package org.pdfbox.util.operator;
32  
33  import java.util.List  ;
34  import org.pdfbox.cos.COSName;
35  import org.pdfbox.pdmodel.graphics.PDExtendedGraphicsState;
36  import org.pdfbox.util.PDFOperator;
37  
38  import java.io.IOException  ;
39  
40  /**
41   * <p>Structal modification of the PDFEngine class :
42   * the long sequence of conditions in processOperator is remplaced by
43   * this strategy pattern.</p>
44   * 
45   * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
46   * @version $Revision: 1.5 $
47   */
48  
49  public class SetGraphicsStateParameters extends OperatorProcessor 
50  {
51      /**
52       * gs Set parameters from graphics state parameter dictionary.
53       * @param operator The operator that is being executed.
54       * @param arguments List
55       * @throws IOException If an error occurs while processing the font.
56       */
57      public void process(PDFOperator operator, List   arguments) throws IOException  
58      {
59          //set parameters from graphics state parameter dictionary
60          COSName graphicsName = (COSName)arguments.get( 0 );
61          PDExtendedGraphicsState gs = (PDExtendedGraphicsState)context.getGraphicsStates().get( graphicsName.getName() );
62          gs.copyIntoGraphicsState( context.getGraphicsState() );
63      }
64  }
65
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