001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.editor.ext.html;
043:
044: import javax.swing.text.Document;
045: import javax.swing.text.JTextComponent;
046: import javax.swing.text.BadLocationException;
047:
048: import org.netbeans.editor.*;
049: import org.netbeans.editor.Settings;
050: import org.netbeans.editor.ext.*;
051:
052: /**
053: * Simple formatter that will break the line on the nearest previous space
054: * after passing the text limit marker.
055: *
056: * @author Petr Nejedly
057: * @version 1.00
058: */
059: public class LineWrapFormatter extends ExtFormatter {
060:
061: int textLimit;
062: Class kitClass;
063:
064: public LineWrapFormatter(Class kitClass) {
065: super (kitClass);
066: this .kitClass = kitClass;
067: textLimit = getTextLimit();
068: }
069:
070: /** Gets text limit int value. If the value is not found in local map,
071: * then it is retrieving from Setting map. The default value is used if the
072: * value from settings is also null. */
073: private int getTextLimit() {
074: Object localValue = getSettingValue(SettingsNames.TEXT_LIMIT_WIDTH);
075: if (localValue != null && localValue instanceof Integer) {
076: return ((Integer) localValue).intValue();
077: } else {
078: synchronized (Settings.class) {
079: Object settingsValue = Settings.getValue(kitClass,
080: SettingsNames.TEXT_LIMIT_WIDTH);
081: if (settingsValue != null
082: && settingsValue instanceof Integer)
083: return ((Integer) settingsValue).intValue();
084: }
085: }
086:
087: return ((Integer) SettingsDefaults.defaultTextLimitWidth)
088: .intValue();
089: }
090:
091: public void settingsChange(SettingsChangeEvent evt) {
092: super .settingsChange(evt);
093: String name = (evt != null) ? evt.getSettingName() : null;
094: if (name == null || SettingsNames.TEXT_LIMIT_WIDTH.equals(name)) {
095: textLimit = getTextLimit();
096: }
097: }
098:
099: protected boolean acceptSyntax(Syntax syntax) {
100: return (syntax instanceof HTMLSyntax);
101: }
102:
103: public int[] getReformatBlock(JTextComponent target,
104: String typedText) {
105: BaseDocument doc = Utilities.getDocument(target);
106: int dotPos = target.getCaret().getDot();
107:
108: // don't reformat for DEL/BKSPC
109: if (typedText.length() == 0 || typedText.charAt(0) == 8
110: || typedText.charAt(0) == 127)
111: return null;
112:
113: if (doc != null) {
114: try {
115: int rstart = Utilities.getRowStart(doc, dotPos);
116: if (dotPos - rstart > textLimit) {
117: String preText = doc.getText(rstart, dotPos
118: - rstart);
119: int lastSpace = preText.lastIndexOf(' ');
120: if (lastSpace > 0) {
121: doc.remove(rstart + lastSpace, 1);
122: doc
123: .insertString(rstart + lastSpace, "\n",
124: null); // NOI18N
125: }
126: }
127: } catch (BadLocationException e) {
128: e.printStackTrace();
129: }
130: }
131:
132: return null;
133: }
134:
135: /** Returns offset of EOL for the white line */
136: protected int getEOLOffset(BaseDocument bdoc, int offset)
137: throws BadLocationException {
138: return offset;
139: }
140:
141: protected void initFormatLayers() { /* No layers */
142: }
143:
144: }
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