001: /*
002: * $Id: RtfListItem.java 2811 2007-05-31 18:51:52Z hallm $
003: * $Name: $
004: *
005: * Copyright 2001, 2002, 2003, 2004, 2005 by Mark Hall
006: *
007: * The contents of this file are subject to the Mozilla Public License Version 1.1
008: * (the "License"); you may not use this file except in compliance with the License.
009: * You may obtain a copy of the License at http://www.mozilla.org/MPL/
010: *
011: * Software distributed under the License is distributed on an "AS IS" basis,
012: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
013: * for the specific language governing rights and limitations under the License.
014: *
015: * The Original Code is 'iText, a free JAVA-PDF library'.
016: *
017: * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
018: * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
019: * All Rights Reserved.
020: * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
021: * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
022: *
023: * Contributor(s): all the names of the contributors are added in the source code
024: * where applicable.
025: *
026: * Alternatively, the contents of this file may be used under the terms of the
027: * LGPL license (the ?GNU LIBRARY GENERAL PUBLIC LICENSE?), in which case the
028: * provisions of LGPL are applicable instead of those above. If you wish to
029: * allow use of your version of this file only under the terms of the LGPL
030: * License and not to allow others to use your version of this file under
031: * the MPL, indicate your decision by deleting the provisions above and
032: * replace them with the notice and other provisions required by the LGPL.
033: * If you do not delete the provisions above, a recipient may use your version
034: * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
035: *
036: * This library is free software; you can redistribute it and/or modify it
037: * under the terms of the MPL as stated above or under the terms of the GNU
038: * Library General Public License as published by the Free Software Foundation;
039: * either version 2 of the License, or any later version.
040: *
041: * This library is distributed in the hope that it will be useful, but WITHOUT
042: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
043: * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
044: * details.
045: *
046: * If you didn't download this code from the following link, you should check if
047: * you aren't using an obsolete version:
048: * http://www.lowagie.com/iText/
049: */
050:
051: package com.lowagie.text.rtf.list;
052:
053: import java.io.ByteArrayOutputStream;
054: import java.io.IOException;
055: import java.io.OutputStream;
056:
057: import com.lowagie.text.ListItem;
058: import com.lowagie.text.rtf.RtfBasicElement;
059: import com.lowagie.text.rtf.document.RtfDocument;
060: import com.lowagie.text.rtf.style.RtfParagraphStyle;
061: import com.lowagie.text.rtf.text.RtfChunk;
062: import com.lowagie.text.rtf.text.RtfParagraph;
063:
064: /**
065: * The RtfListItem acts as a wrapper for a ListItem.
066: *
067: * @version $Id: RtfListItem.java 2811 2007-05-31 18:51:52Z hallm $
068: * @author Mark Hall (mhall@edu.uni-klu.ac.at)
069: * @author Thomas Bickel (tmb99@inode.at)
070: */
071: public class RtfListItem extends RtfParagraph {
072:
073: /**
074: * The RtfList this RtfListItem belongs to.
075: */
076: private RtfList parentList = null;
077: /**
078: * Whether this RtfListItem contains further RtfLists.
079: */
080: private boolean containsInnerList = false;
081:
082: /**
083: * Constructs a RtfListItem for a ListItem belonging to a RtfDocument.
084: *
085: * @param doc The RtfDocument this RtfListItem belongs to.
086: * @param listItem The ListItem this RtfListItem is based on.
087: */
088: public RtfListItem(RtfDocument doc, ListItem listItem) {
089: super (doc, listItem);
090: }
091:
092: /**
093: * Writes the content of this RtfListItem.
094: *
095: * @return A byte array with the content of this RtfListItem.
096: * @deprecated replaced by {@link #writeContent(OutputStream)}
097: */
098: public byte[] write() {
099: ByteArrayOutputStream result = new ByteArrayOutputStream();
100: try {
101: writeContent(result);
102: } catch (IOException ioe) {
103: ioe.printStackTrace();
104: }
105: return result.toByteArray();
106: }
107:
108: /**
109: * Writes the content of this RtfListItem.
110: */
111: public void writeContent(final OutputStream result)
112: throws IOException {
113: if (this .paragraphStyle.getSpacingBefore() > 0) {
114: result.write(RtfParagraphStyle.SPACING_BEFORE);
115: result.write(intToByteArray(paragraphStyle
116: .getSpacingBefore()));
117: }
118: if (this .paragraphStyle.getSpacingAfter() > 0) {
119: result.write(RtfParagraphStyle.SPACING_AFTER);
120: result.write(intToByteArray(this .paragraphStyle
121: .getSpacingAfter()));
122: }
123: for (int i = 0; i < chunks.size(); i++) {
124: RtfBasicElement rtfElement = (RtfBasicElement) chunks
125: .get(i);
126: if (rtfElement instanceof RtfChunk) {
127: ((RtfChunk) rtfElement).setSoftLineBreaks(true);
128: } else if (rtfElement instanceof RtfList) {
129: result.write(RtfParagraph.PARAGRAPH);
130: this .containsInnerList = true;
131: }
132: //.result.write(rtfElement.write());
133: rtfElement.writeContent(result);
134: if (rtfElement instanceof RtfList) {
135: result.write(this .parentList.writeListBeginning());
136: result.write("\\tab".getBytes());
137: }
138: }
139: }
140:
141: /**
142: * Returns the definition of the first list contained in this RtfListItem or
143: * an empty byte array if no inner RtfLists exist.
144: *
145: * @return The definition of the first inner RtfList or an empty byte array.
146: * @deprecated replaced by {@link #writeDefinition(OutputStream)}
147: */
148: public byte[] writeDefinition() {
149: for (int i = 0; i < chunks.size(); i++) {
150: RtfBasicElement rtfElement = (RtfBasicElement) chunks
151: .get(i);
152: if (rtfElement instanceof RtfList) {
153: return ((RtfList) rtfElement).writeDefinition();
154: }
155: }
156: return new byte[0];
157: }
158:
159: /**
160: * Writes the definition of the first element in this RtfListItem that is
161: * an instanceof {@link RtfList} to the given stream.<br>
162: * If this item does not contain a {@link RtfList} element nothing is written
163: * and the method returns <code>false</code>.
164: *
165: * @param out destination stream
166: * @return <code>true</code> if a RtfList definition was written, <code>false</code> otherwise
167: * @throws IOException
168: */
169: public boolean writeDefinition(OutputStream out) throws IOException {
170: for (int i = 0; i < chunks.size(); i++) {
171: RtfBasicElement rtfElement = (RtfBasicElement) chunks
172: .get(i);
173: if (rtfElement instanceof RtfList) {
174: RtfList rl = (RtfList) rtfElement;
175: rl.writeDefinition(out);
176: return (true);
177: }
178: }
179: return (false);
180: }
181:
182: /**
183: * Inherit the list settings from the parent list to RtfLists that
184: * are contained in this RtfListItem.
185: *
186: * @param listNumber The list number to inherit.
187: * @param listLevel The list level to inherit.
188: */
189: public void inheritListSettings(int listNumber, int listLevel) {
190: for (int i = 0; i < chunks.size(); i++) {
191: RtfBasicElement rtfElement = (RtfBasicElement) chunks
192: .get(i);
193: if (rtfElement instanceof RtfList) {
194: ((RtfList) rtfElement).setListNumber(listNumber);
195: ((RtfList) rtfElement).setListLevel(listLevel);
196: ((RtfList) rtfElement).setParent(this .parentList);
197: }
198: }
199: }
200:
201: /**
202: * Correct the indentation of RtfLists in this RtfListItem by adding left/first line indentation
203: * from the parent RtfList. Also calls correctIndentation on all child RtfLists.
204: */
205: protected void correctIndentation() {
206: for (int i = 0; i < chunks.size(); i++) {
207: RtfBasicElement rtfElement = (RtfBasicElement) chunks
208: .get(i);
209: if (rtfElement instanceof RtfList) {
210: ((RtfList) rtfElement).correctIndentation();
211: }
212: }
213: }
214:
215: /**
216: * Set the parent RtfList.
217: *
218: * @param parentList The parent RtfList to use.
219: */
220: public void setParent(RtfList parentList) {
221: this .parentList = parentList;
222: }
223:
224: /**
225: * Gets whether this RtfListItem contains further RtfLists.
226: *
227: * @return Whether this RtfListItem contains further RtfLists.
228: */
229: public boolean isContainsInnerList() {
230: return this.containsInnerList;
231: }
232: }
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