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


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.io.IOException JavaDoc;
34 import java.util.ArrayList JavaDoc;
35 import java.util.List JavaDoc;
36
37 import org.pdfbox.cos.COSFloat;
38 import org.pdfbox.util.PDFOperator;
39
40 /**
41  *
42  * <p>Titre : PDFEngine Modification.</p>
43  * <p>Description : Structal modification of the PDFEngine class : the long sequence of
44  * conditions in processOperator is remplaced by this strategy pattern</p>
45  * <p>Copyright : Copyright (c) 2004</p>
46  * <p>Société : DBGS</p>
47  * @author Huault : huault@free.fr
48  * @version $Revision: 1.5 $
49  */

50 public class NextLine extends OperatorProcessor
51 {
52     /**
53      * process : T* Move to start of next text line.
54      * @param operator The operator that is being executed.
55      * @param arguments List
56      *
57      * @throws IOException If there is an error during processing.
58      */

59     public void process(PDFOperator operator, List JavaDoc arguments) throws IOException JavaDoc
60     {
61         //move to start of next text line
62
ArrayList JavaDoc args = new ArrayList JavaDoc();
63         args.add(new COSFloat(0.0f));
64         // this must be -leading instead of just leading as written in the
65
// specification (p.369) the acrobat reader seems to implement it the same way
66
args.add(new COSFloat(-1*context.getGraphicsState().getTextState().getLeading()));
67         // use Td instead of repeating code
68
context.processOperator("Td", args);
69         
70     }
71 }
72
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