/*******************************************************************************
* Copyright (c) 2000, 2008 QNX Software Systems and others.
* 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:
* QNX Software Systems - Initial API and implementation
* Anton Leherbauer (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.text;
import java.util.LinkedList;
import java.util.Map;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.TextUtilities;
import org.eclipse.jface.text.TypedPosition;
import org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy;
import org.eclipse.jface.text.formatter.FormattingContextProperties;
import org.eclipse.jface.text.formatter.IFormattingContext;
import org.eclipse.text.edits.MalformedTreeException;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.cdt.core.formatter.CodeFormatter;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.internal.corext.util.CodeFormatterUtil;
/**
* @author AChapiro
*/
public class CFormattingStrategy extends ContextBasedFormattingStrategy {
/** Documents to be formatted by this strategy */
private final LinkedList<IDocument> fDocuments= new LinkedList<IDocument>();
/** Partitions to be formatted by this strategy */
private final LinkedList<TypedPosition> fPartitions= new LinkedList<TypedPosition>();
/**
* Creates a new java formatting strategy.
*/
public CFormattingStrategy() {
super();
}
/*
* @see org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy#format()
*/
@Override
public void format() {
super.format();
final IDocument document= fDocuments.removeFirst();
final TypedPosition partition= fPartitions.removeFirst();
if (document != null && partition != null) {
try {
@SuppressWarnings("unchecked")
final Map<String, String> preferences = getPreferences();
final TextEdit edit = CodeFormatterUtil.format(
CodeFormatter.K_TRANSLATION_UNIT, document.get(),
partition.getOffset(), partition.getLength(), 0,
TextUtilities.getDefaultLineDelimiter(document),
preferences);
if (edit != null)
edit.apply(document);
} catch (MalformedTreeException e) {
CUIPlugin.log(e);
} catch (BadLocationException e) {
// Can only happen on concurrent document modification - log and
// bail out
CUIPlugin.log(e);
}
}
}
/*
* @see org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy#formatterStarts(org.eclipse.jface.text.formatter.IFormattingContext)
*/
@Override
public void formatterStarts(final IFormattingContext context) {
super.formatterStarts(context);
Object property = context.getProperty(FormattingContextProperties.CONTEXT_PARTITION);
if (property instanceof TypedPosition) {
fPartitions.addLast((TypedPosition) property);
}
property= context.getProperty(FormattingContextProperties.CONTEXT_MEDIUM);
if (property instanceof IDocument) {
fDocuments.addLast((IDocument) property);
}
}
/*
* @see org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy#formatterStops()
*/
@Override
public void formatterStops() {
super.formatterStops();
fPartitions.clear();
fDocuments.clear();
}
}