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 1997-2007 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.modules.cnd.editor.cplusplus;
043:
044: import javax.swing.text.BadLocationException;
045: import javax.swing.text.Document;
046: import org.netbeans.editor.BaseDocument;
047: import org.netbeans.editor.SyntaxSupport;
048: import org.netbeans.editor.ext.ExtSyntaxSupport;
049: import org.netbeans.spi.editor.bracesmatching.BracesMatcher;
050: import org.netbeans.spi.editor.bracesmatching.BracesMatcherFactory;
051: import org.netbeans.spi.editor.bracesmatching.MatcherContext;
052:
053: /**
054: * This is the org.netbeans.modules.editor.bracesmatching.LegacyEssMatcher
055: * with IZ118206 fixed to have consistency with Java matcher.
056: *
057: * @author sg155630
058: */
059: public class CppBracesMatcher implements BracesMatcher,
060: BracesMatcherFactory {
061:
062: private final MatcherContext context;
063: private final ExtSyntaxSupport ess;
064: private int[] block;
065:
066: public CppBracesMatcher() {
067: this (null, null);
068: }
069:
070: private CppBracesMatcher(MatcherContext context,
071: ExtSyntaxSupport ess) {
072: this .context = context;
073: this .ess = ess;
074: }
075:
076: // -----------------------------------------------------
077: // BracesMatcher implementation
078: // -----------------------------------------------------
079:
080: public int[] findOrigin() throws BadLocationException {
081: int offset;
082:
083: if (context.isSearchingBackward()) {
084: offset = context.getSearchOffset() - 1;
085: } else {
086: offset = context.getSearchOffset();
087: }
088:
089: block = ess.findMatchingBlock(offset, false);
090: return block == null ? null : new int[] { offset, offset + 1 };
091: }
092:
093: public int[] findMatches() throws InterruptedException {
094: return block;
095: }
096:
097: // -----------------------------------------------------
098: // BracesMatcherFactory implementation
099: // -----------------------------------------------------
100:
101: public BracesMatcher createMatcher(MatcherContext context) {
102: Document d = context.getDocument();
103:
104: if (d instanceof BaseDocument) {
105: SyntaxSupport ss = ((BaseDocument) d).getSyntaxSupport();
106: if (ss instanceof ExtSyntaxSupport
107: && ss.getClass() != ExtSyntaxSupport.class) {
108: return new CppBracesMatcher(context,
109: (ExtSyntaxSupport) ss);
110: }
111: }
112:
113: return null;
114: }
115: }
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