/*******************************************************************************
* Copyright (c) 2006, 2012 Wind River Systems, Inc. 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:
* Anton Leherbauer (Wind River Systems) - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.ui.text;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITypedRegion;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.presentation.IPresentationDamager;
/**
* A simple presentation damager always damaging the whole partition.
* This is necessary if the partition contains multiline highlight regions.
*
* @since 4.0
*/
public class PartitionDamager implements IPresentationDamager {
/*
* @see org.eclipse.jface.text.presentation.IPresentationDamager#getDamageRegion(org.eclipse.jface.text.ITypedRegion, org.eclipse.jface.text.DocumentEvent, boolean)
*/
@Override
public IRegion getDamageRegion(ITypedRegion partition, DocumentEvent event,
boolean documentPartitioningChanged) {
if (!documentPartitioningChanged && event.getOffset() == partition.getOffset() + partition.getLength()) {
IRegion lineRegion;
try {
lineRegion = event.fDocument.getLineInformationOfOffset(event.getOffset());
int start= partition.getOffset();
int end= lineRegion.getOffset() + lineRegion.getLength();
return new Region(start, end - start);
} catch (BadLocationException exc) {
// ignore
}
}
return partition;
}
/*
* @see org.eclipse.jface.text.presentation.IPresentationDamager#setDocument(org.eclipse.jface.text.IDocument)
*/
@Override
public void setDocument(IDocument document) {
}
}