001/* 002 * $Id: SplitCharacter.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; 045 046import com.itextpdf.text.pdf.PdfChunk; 047 048/** Interface for customizing the split character. 049 * 050 * @author Paulo Soares 051 */ 052 053public interface SplitCharacter { 054 055 /** 056 * Returns <CODE>true</CODE> if the character can split a line. The splitting implementation 057 * is free to look ahead or look behind characters to make a decision. 058 * <p> 059 * The default implementation is: 060 * <p> 061 * <pre> 062 * public boolean isSplitCharacter(int start, int current, int end, char[] cc, PdfChunk[] ck) { 063 * char c; 064 * if (ck == null) 065 * c = cc[current]; 066 * else 067 * c = (char) ck[Math.min(current, ck.length - 1)].getUnicodeEquivalent(cc[current]); 068 * if (c <= ' ' || c == '-') { 069 * return true; 070 * } 071 * if (c < 0x2e80) 072 * return false; 073 * return ((c >= 0x2e80 && c < 0xd7a0) 074 * || (c >= 0xf900 && c < 0xfb00) 075 * || (c >= 0xfe30 && c < 0xfe50) 076 * || (c >= 0xff61 && c < 0xffa0)); 077 * } 078 * </pre> 079 * @param start the lower limit of <CODE>cc</CODE> inclusive 080 * @param current the pointer to the character in <CODE>cc</CODE> 081 * @param end the upper limit of <CODE>cc</CODE> exclusive 082 * @param cc an array of characters at least <CODE>end</CODE> sized 083 * @param ck an array of <CODE>PdfChunk</CODE>. The main use is to be able to call 084 * {@link PdfChunk#getUnicodeEquivalent(int)}. It may be <CODE>null</CODE> 085 * or shorter than <CODE>end</CODE>. If <CODE>null</CODE> no conversion takes place. 086 * If shorter than <CODE>end</CODE> the last element is used 087 * @return <CODE>true</CODE> if the character(s) can split a line 088 */ 089 public boolean isSplitCharacter(int start, int current, int end, char cc[], PdfChunk ck[]); 090}