com.itextpdf.text.SplitCharacter Maven / Gradle / Ivy
/*
* $Id: 02d4ef2009035f35e48979bf282b8876b0792fa8 $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2016 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
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* or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
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* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
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* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
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*/
package com.itextpdf.text;
import com.itextpdf.text.pdf.PdfChunk;
/** Interface for customizing the split character.
*
* @author Paulo Soares
*/
public interface SplitCharacter {
/**
* Returns true if the character can split a line. The splitting implementation
* is free to look ahead or look behind characters to make a decision.
*
* The default implementation is:
*
*
* public boolean isSplitCharacter(int start, int current, int end, char[] cc, PdfChunk[] ck) {
* char c;
* if (ck == null)
* c = cc[current];
* else
* c = (char) ck[Math.min(current, ck.length - 1)].getUnicodeEquivalent(cc[current]);
* if (c <= ' ' || c == '-') {
* return true;
* }
* if (c < 0x2e80)
* return false;
* return ((c >= 0x2e80 && c < 0xd7a0)
* || (c >= 0xf900 && c < 0xfb00)
* || (c >= 0xfe30 && c < 0xfe50)
* || (c >= 0xff61 && c < 0xffa0));
* }
*
* @param start the lower limit of cc inclusive
* @param current the pointer to the character in cc
* @param end the upper limit of cc exclusive
* @param cc an array of characters at least end sized
* @param ck an array of PdfChunk. The main use is to be able to call
* {@link PdfChunk#getUnicodeEquivalent(int)}. It may be null
* or shorter than end. If null no conversion takes place.
* If shorter than end the last element is used
* @return true if the character(s) can split a line
*/
public boolean isSplitCharacter(int start, int current, int end, char cc[], PdfChunk ck[]);
}