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+/*
+ * Copyright 2002 Paulo Soares
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above. If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+package com.lowagie.text.pdf;
+
+import com.lowagie.text.pdf.hyphenation.Hyphenator;
+import com.lowagie.text.pdf.hyphenation.Hyphenation;
+
+/** Hyphenates words automatically accordingly to the language and country.
+ * The hyphenator engine was taken from FOP and uses the TEX patterns. If a language
+ * is not provided and a TEX pattern for it exists, it can be easily adapted.
+ *
+ * @author Paulo Soares (psoares@consiste.pt)
+ */
+public class HyphenationAuto implements HyphenationEvent {
+
+ /** The hyphenator engine.
+ */
+ protected Hyphenator hyphenator;
+ /** The second part of the hyphenated word.
+ */
+ protected String post;
+
+ /** Creates a new hyphenation instance usable in <CODE>Chunk</CODE>.
+ * @param lang the language ("en" for english, for example)
+ * @param country the country ("GB" for Great-Britain or "none" for no country, for example)
+ * @param leftMin the minimun number of letters before the hyphen
+ * @param rightMin the minimun number of letters after the hyphen
+ */
+ public HyphenationAuto(String lang, String country, int leftMin, int rightMin) {
+ hyphenator = new Hyphenator(lang, country, leftMin, rightMin);
+ }
+
+ /** Gets the hyphen symbol.
+ * @return the hyphen symbol
+ */
+ public String getHyphenSymbol() {
+ return "-";
+ }
+
+ /** Hyphenates a word and returns the first part of it. To get
+ * the second part of the hyphenated word call <CODE>getHyphenatedWordPost()</CODE>.
+ * @param word the word to hyphenate
+ * @param font the font used by this word
+ * @param fontSize the font size used by this word
+ * @param remainingWidth the width available to fit this word in
+ * @return the first part of the hyphenated word including
+ * the hyphen symbol, if any
+ */
+ public String getHyphenatedWordPre(String word, BaseFont font, float fontSize, float remainingWidth) {
+ post = word;
+ String hyphen = getHyphenSymbol();
+ float hyphenWidth = font.getWidthPoint(hyphen, fontSize);
+ if (hyphenWidth > remainingWidth)
+ return "";
+ Hyphenation hyphenation = hyphenator.hyphenate(word);
+ if (hyphenation == null) {
+ return "";
+ }
+ int len = hyphenation.length();
+ int k;
+ for (k = 0; k < len; ++k) {
+ if (font.getWidthPoint(hyphenation.getPreHyphenText(k), fontSize) + hyphenWidth > remainingWidth)
+ break;
+ }
+ --k;
+ if (k < 0)
+ return "";
+ post = hyphenation.getPostHyphenText(k);
+ return hyphenation.getPreHyphenText(k) + hyphen;
+ }
+
+ /** Gets the second part of the hyphenated word. Must be called
+ * after <CODE>getHyphenatedWordPre()</CODE>.
+ * @return the second part of the hyphenated word
+ */
+ public String getHyphenatedWordPost() {
+ return post;
+ }
+
+}