001/* 002 * $Id: PdfDashPattern.java 4784 2011-03-15 08:33:00Z blowagie $ 003 * 004 * This file is part of the iText (R) project. 005 * Copyright (c) 1998-2011 1T3XT BVBA 006 * Authors: Bruno Lowagie, Paulo Soares, et al. 007 * 008 * This program is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Affero General Public License version 3 010 * as published by the Free Software Foundation with the addition of the 011 * following permission added to Section 15 as permitted in Section 7(a): 012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT, 013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. 014 * 015 * This program is distributed in the hope that it will be useful, but 016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 017 * or FITNESS FOR A PARTICULAR PURPOSE. 018 * See the GNU Affero General Public License for more details. 019 * You should have received a copy of the GNU Affero General Public License 020 * along with this program; if not, see http://www.gnu.org/licenses or write to 021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 022 * Boston, MA, 02110-1301 USA, or download the license from the following URL: 023 * http://itextpdf.com/terms-of-use/ 024 * 025 * The interactive user interfaces in modified source and object code versions 026 * of this program must display Appropriate Legal Notices, as required under 027 * Section 5 of the GNU Affero General Public License. 028 * 029 * In accordance with Section 7(b) of the GNU Affero General Public License, 030 * a covered work must retain the producer line in every PDF that is created 031 * or manipulated using iText. 032 * 033 * You can be released from the requirements of the license by purchasing 034 * a commercial license. Buying such a license is mandatory as soon as you 035 * develop commercial activities involving the iText software without 036 * disclosing the source code of your own applications. 037 * These activities include: offering paid services to customers as an ASP, 038 * serving PDFs on the fly in a web application, shipping iText with a closed 039 * source product. 040 * 041 * For more information, please contact iText Software Corp. at this 042 * address: sales@itextpdf.com 043 */ 044package com.itextpdf.text.pdf; 045 046import java.io.IOException; 047import java.io.OutputStream; 048 049/** 050 * A <CODE>PdfDashPattern</CODE> defines a dash pattern as described in 051 * the PDF Reference Manual version 1.3 p 325 (section 8.4.3). 052 * 053 * @see PdfArray 054 */ 055 056public class PdfDashPattern extends PdfArray { 057 058 // membervariables 059 060/** This is the length of a dash. */ 061 private float dash = -1; 062 063/** This is the length of a gap. */ 064 private float gap = -1; 065 066/** This is the phase. */ 067 private float phase = -1; 068 069 // constructors 070 071/** 072 * Constructs a new <CODE>PdfDashPattern</CODE>. 073 */ 074 075 public PdfDashPattern() { 076 super(); 077 } 078 079/** 080 * Constructs a new <CODE>PdfDashPattern</CODE>. 081 */ 082 083 public PdfDashPattern(float dash) { 084 super(new PdfNumber(dash)); 085 this.dash = dash; 086 } 087 088/** 089 * Constructs a new <CODE>PdfDashPattern</CODE>. 090 */ 091 092 public PdfDashPattern(float dash, float gap) { 093 super(new PdfNumber(dash)); 094 add(new PdfNumber(gap)); 095 this.dash = dash; 096 this.gap = gap; 097 } 098 099/** 100 * Constructs a new <CODE>PdfDashPattern</CODE>. 101 */ 102 103 public PdfDashPattern(float dash, float gap, float phase) { 104 super(new PdfNumber(dash)); 105 add(new PdfNumber(gap)); 106 this.dash = dash; 107 this.gap = gap; 108 this.phase = phase; 109 } 110 111 public void add(float n) { 112 add(new PdfNumber(n)); 113 } 114 115/** 116 * Returns the PDF representation of this <CODE>PdfArray</CODE>. 117 */ 118 119 public void toPdf(PdfWriter writer, OutputStream os) throws IOException { 120 os.write('['); 121 122 if (dash >= 0) { 123 new PdfNumber(dash).toPdf(writer, os); 124 if (gap >= 0) { 125 os.write(' '); 126 new PdfNumber(gap).toPdf(writer, os); 127 } 128 } 129 os.write(']'); 130 if (phase >=0) { 131 os.write(' '); 132 new PdfNumber(phase).toPdf(writer, os); 133 } 134 } 135}