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Java > Open Source Codes > com > lowagie > text > pdf > PdfTransparencyGroup


1 /*
2  * Copyright 2003 Paulo Soares
3  *
4  * The contents of this file are subject to the Mozilla Public License Version 1.1
5  * (the "License"); you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the License.
11  *
12  * The Original Code is 'iText, a free JAVA-PDF library'.
13  *
14  * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
15  * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
16  * All Rights Reserved.
17  * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
18  * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
19  *
20  * Contributor(s): all the names of the contributors are added in the source code
21  * where applicable.
22  *
23  * Alternatively, the contents of this file may be used under the terms of the
24  * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
25  * provisions of LGPL are applicable instead of those above. If you wish to
26  * allow use of your version of this file only under the terms of the LGPL
27  * License and not to allow others to use your version of this file under
28  * the MPL, indicate your decision by deleting the provisions above and
29  * replace them with the notice and other provisions required by the LGPL.
30  * If you do not delete the provisions above, a recipient may use your version
31  * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
32  *
33  * This library is free software; you can redistribute it and/or modify it
34  * under the terms of the MPL as stated above or under the terms of the GNU
35  * Library General Public License as published by the Free Software Foundation;
36  * either version 2 of the License, or any later version.
37  *
38  * This library is distributed in the hope that it will be useful, but WITHOUT
39  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
40  * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
41  * details.
42  *
43  * If you didn't download this code from the following link, you should check if
44  * you aren't using an obsolete version:
45  * http://www.lowagie.com/iText/
46  */
47 package com.lowagie.text.pdf;
48
49 /** The transparency group dictionary.
50  *
51  * @author Paulo Soares (psoares@consiste.pt)
52  */
53 public class PdfTransparencyGroup extends PdfDictionary {
54     
55     /**
56      * Constructs a transparencyGroup.
57      */
58     public PdfTransparencyGroup() {
59         super();
60         put(PdfName.S, PdfName.TRANSPARENCY);
61     }
62  
63     /**
64      * Determining the initial backdrop against which its stack is composited.
65      * @param isolated
66      */
67     public void setIsolated(boolean isolated) {
68         if (isolated)
69             put(PdfName.I, PdfBoolean.PDFTRUE);
70         else
71             remove(PdfName.I);
72     }
73     
74     /**
75      * Determining whether the objects within the stack are composited with one another or only with the group's backdrop.
76      * @param knockout
77      */
78     public void setKnockout(boolean knockout) {
79         if (knockout)
80             put(PdfName.K, PdfBoolean.PDFTRUE);
81         else
82             remove(PdfName.K);
83     }
84
85 }
86
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