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


1 /*
2  * $Id: PdfDashPattern.java 2671 2007-04-03 16:08:04Z psoares33 $
3  * $Name$
4  *
5  * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
6  *
7  * The contents of this file are subject to the Mozilla Public License Version 1.1
8  * (the "License"); you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the License.
14  *
15  * The Original Code is 'iText, a free JAVA-PDF library'.
16  *
17  * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
18  * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
19  * All Rights Reserved.
20  * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
21  * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
22  *
23  * Contributor(s): all the names of the contributors are added in the source code
24  * where applicable.
25  *
26  * Alternatively, the contents of this file may be used under the terms of the
27  * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
28  * provisions of LGPL are applicable instead of those above. If you wish to
29  * allow use of your version of this file only under the terms of the LGPL
30  * License and not to allow others to use your version of this file under
31  * the MPL, indicate your decision by deleting the provisions above and
32  * replace them with the notice and other provisions required by the LGPL.
33  * If you do not delete the provisions above, a recipient may use your version
34  * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Library General Public License as published by the Free Software Foundation;
39  * either version 2 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
43  * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
44  * details.
45  *
46  * If you didn't download this code from the following link, you should check if
47  * you aren't using an obsolete version:
48  * http://www.lowagie.com/iText/
49  */
50
51 package com.lowagie.text.pdf;
52
53 import java.io.IOException JavaDoc;
54 import java.io.OutputStream JavaDoc;
55
56 /**
57  * A <CODE>PdfDashPattern</CODE> defines a dash pattern as described in
58  * the PDF Reference Manual version 1.3 p 325 (section 8.4.3).
59  *
60  * @see PdfArray
61  */
62
63 public class PdfDashPattern extends PdfArray {
64     
65     // membervariables
66
67 /** This is the length of a dash. */
68     private float dash = -1;
69     
70 /** This is the length of a gap. */
71     private float gap = -1;
72     
73 /** This is the phase. */
74     private float phase = -1;
75     
76     // constructors
77
78 /**
79  * Constructs a new <CODE>PdfDashPattern</CODE>.
80  */
81     
82     public PdfDashPattern() {
83         super();
84     }
85     
86 /**
87  * Constructs a new <CODE>PdfDashPattern</CODE>.
88  */
89     
90     public PdfDashPattern(float dash) {
91         super(new PdfNumber(dash));
92         this.dash = dash;
93     }
94     
95 /**
96  * Constructs a new <CODE>PdfDashPattern</CODE>.
97  */
98     
99     public PdfDashPattern(float dash, float gap) {
100         super(new PdfNumber(dash));
101         add(new PdfNumber(gap));
102         this.dash = dash;
103         this.gap = gap;
104     }
105     
106 /**
107  * Constructs a new <CODE>PdfDashPattern</CODE>.
108  */
109     
110     public PdfDashPattern(float dash, float gap, float phase) {
111         super(new PdfNumber(dash));
112         add(new PdfNumber(gap));
113         this.dash = dash;
114         this.gap = gap;
115         this.phase = phase;
116     }
117     
118     public void add(float n) {
119         add(new PdfNumber(n));
120     }
121     
122 /**
123  * Returns the PDF representation of this <CODE>PdfArray</CODE>.
124  */
125     
126     public void toPdf(PdfWriter writer, OutputStream JavaDoc os) throws IOException JavaDoc {
127         os.write('[');
128
129         if (dash >= 0) {
130             new PdfNumber(dash).toPdf(writer, os);
131             if (gap >= 0) {
132                 os.write(' ');
133                 new PdfNumber(gap).toPdf(writer, os);
134             }
135         }
136         os.write(']');
137         if (phase >=0) {
138             os.write(' ');
139             new PdfNumber(phase).toPdf(writer, os);
140         }
141     }
142 }
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