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


1 /**
2  * Copyright (c) 2004, 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 org.pdfbox.cos.COSNumber;
35 import org.pdfbox.util.Matrix;
36 import org.pdfbox.util.PDFOperator;
37
38 /**
39  * <p>Titre : PDFEngine Modification.</p>
40  * <p>Description : Structal modification of the PDFEngine class : the long sequence of conditions
41  * in processOperator is remplaced by this strategy pattern</p>
42  * <p>Copyright : Copyright (c) 2004</p>
43  * <p>Société : DBGS</p>
44  * @author Huault : huault@free.fr
45  * @version $Revision: 1.4 $
46  */
47
48 public class SetMatrix extends OperatorProcessor
49 {
50
51     /**
52      * Tm Set text matrix and text line matrix.
53      * @param operator The operator that is being executed.
54      * @param arguments List
55      */
56     public void process(PDFOperator operator, List JavaDoc arguments)
57     {
58         //Set text matrix and text line matrix
59 COSNumber a = (COSNumber)arguments.get( 0 );
60         COSNumber b = (COSNumber)arguments.get( 1 );
61         COSNumber c = (COSNumber)arguments.get( 2 );
62         COSNumber d = (COSNumber)arguments.get( 3 );
63         COSNumber e = (COSNumber)arguments.get( 4 );
64         COSNumber f = (COSNumber)arguments.get( 5 );
65
66         Matrix textMatrix = new Matrix();
67         textMatrix.setValue( 0, 0, a.floatValue() );
68         textMatrix.setValue( 0, 1, b.floatValue() );
69         textMatrix.setValue( 1, 0, c.floatValue() );
70         textMatrix.setValue( 1, 1, d.floatValue() );
71         textMatrix.setValue( 2, 0, e.floatValue() );
72         textMatrix.setValue( 2, 1, f.floatValue() );
73         context.setTextMatrix( textMatrix );
74         context.setTextLineMatrix( textMatrix.copy() );
75     }
76 }
77
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