AntxrDocumentProvider.java

/*******************************************************************************
 * Copyright (c) 2008 Scott Stanchfield, based on ANTLR-Eclipse plugin
 *   by Torsten Juergeleit.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors
 *    Torsten Juergeleit - original ANTLR Eclipse plugin
 *    Scott Stanchfield - modifications for ANTXR
 *******************************************************************************/
package com.javadude.antxr.eclipse.ui.editor;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentPartitioner;
import org.eclipse.jface.text.rules.FastPartitioner;
import org.eclipse.ui.editors.text.FileDocumentProvider;

import com.javadude.antxr.eclipse.ui.editor.text.PartitionScanner;

/**
 * This class provides the IDocuments used by ANTXR editors.
 * These IDocuments have an ANTXR-aware partition scanner (multi-line comments)
 * attached.
 */
public class AntxrDocumentProvider extends FileDocumentProvider {

    /* (non-Javadoc)
     * @see org.eclipse.ui.texteditor.AbstractDocumentProvider#createDocument(java.lang.Object)
     */
    protected IDocument createDocument(Object anElement) throws CoreException {
        IDocument document = super.createDocument(anElement);
        if (document != null) {
            IDocumentPartitioner partitioner = new FastPartitioner(
                     new PartitionScanner(), PartitionScanner.PARTITION_TYPES);
            partitioner.connect(document);
            document.setDocumentPartitioner(partitioner);
        }
        return document;
    }
}