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Java > Open Source Codes > org > pdfbox > util > operator > SetNonStrokingColorSpace


1 /**
2  * Copyright (c) 2005, www.pdfbox.org
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
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
12  * and/or other materials provided with the distribution.
13  * 3. Neither the name of pdfbox; nor the names of its
14  * contributors may be used to endorse or promote products derived from this
15  * software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * http://www.pdfbox.org
29  *
30  */

31 package org.pdfbox.util.operator;
32
33 import java.util.List JavaDoc;
34 import java.util.Map JavaDoc;
35
36 import org.pdfbox.cos.COSName;
37 import org.pdfbox.pdmodel.graphics.color.PDColorSpace;
38 import org.pdfbox.pdmodel.graphics.color.PDColorSpaceFactory;
39 import org.pdfbox.pdmodel.graphics.color.PDColorSpaceInstance;
40 import org.pdfbox.pdmodel.graphics.color.PDDeviceCMYK;
41 import org.pdfbox.util.PDFOperator;
42
43 import java.io.IOException JavaDoc;
44
45 /**
46  * <p>Set the non stroking color space.</p>
47  *
48  * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
49  * @version $Revision: 1.4 $
50  */

51 public class SetNonStrokingColorSpace extends OperatorProcessor
52 {
53     private static final float[] EMPTY_FLOAT_ARRAY = new float[0];
54
55     /**
56      * cs Set color space for non stroking operations.
57      * @param operator The operator that is being executed.
58      * @param arguments List
59      * @throws IOException If an error occurs while processing the font.
60      */

61     public void process(PDFOperator operator, List JavaDoc arguments) throws IOException JavaDoc
62     {
63 // (PDF 1.1) Set color space for stroking operations
64
COSName name = (COSName)arguments.get( 0 );
65         PDColorSpace cs = null;
66         Map JavaDoc colorSpaces = context.getColorSpaces();
67         if( colorSpaces != null )
68         {
69              cs = (PDColorSpace)colorSpaces.get( name.getName() );
70         }
71         if( cs == null )
72         {
73             cs = PDColorSpaceFactory.createColorSpace( name );
74         }
75         PDColorSpaceInstance colorInstance = context.getGraphicsState().getNonStrokingColorSpace();
76         colorInstance.setColorSpace( cs );
77         int numComponents = cs.getNumberOfComponents();
78         float[] values = EMPTY_FLOAT_ARRAY;
79         if( numComponents >= 0 )
80         {
81             values = new float[numComponents];
82             for( int i=0; i<numComponents; i++ )
83             {
84                 values[i] = 0f;
85             }
86             if( cs instanceof PDDeviceCMYK )
87             {
88                 values[3] = 1f;
89             }
90         }
91         colorInstance.setColorSpaceValue( values );
92     }
93 }
94
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