/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.ui.compare;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.text.IDocumentPartitioner;
import org.eclipse.jface.text.TextViewer;
import org.eclipse.jface.text.rules.FastPartitioner;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.contentmergeviewer.TextMergeViewer;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.propertiesfileeditor.IPropertiesFilePartitions;
import org.eclipse.jdt.internal.ui.propertiesfileeditor.PropertiesFilePartitionScanner;
import org.eclipse.jdt.internal.ui.propertiesfileeditor.PropertiesFileSourceViewerConfiguration;
/**
* Properties file merge viewer.
*
* @since 3.1
*/
public class PropertiesFileMergeViewer extends TextMergeViewer {
private List<SourceViewerConfiguration> fSourceViewerConfigurations;
private IPropertyChangeListener fPreferenceChangeListener;
private IPreferenceStore fPreferenceStore;
/**
* Creates a properties file merge viewer under the given parent control.
*
* @param parent the parent control
* @param configuration the configuration object
*/
public PropertiesFileMergeViewer(Composite parent, CompareConfiguration configuration) {
super(parent, SWT.LEFT_TO_RIGHT, configuration);
}
/*
* @see org.eclipse.compare.contentmergeviewer.TextMergeViewer#configureTextViewer(org.eclipse.jface.text.TextViewer)
*/
@Override
protected void configureTextViewer(TextViewer textViewer) {
if (!(textViewer instanceof SourceViewer))
return;
if (fPreferenceStore == null) {
fSourceViewerConfigurations= new ArrayList<SourceViewerConfiguration>(3);
fPreferenceStore= JavaPlugin.getDefault().getCombinedPreferenceStore();
fPreferenceChangeListener= new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
Iterator<SourceViewerConfiguration> iter= fSourceViewerConfigurations.iterator();
while (iter.hasNext())
((PropertiesFileSourceViewerConfiguration)iter.next()).handlePropertyChangeEvent(event);
invalidateTextPresentation();
}
};
fPreferenceStore.addPropertyChangeListener(fPreferenceChangeListener);
}
SourceViewerConfiguration sourceViewerConfiguration= new PropertiesFileSourceViewerConfiguration(JavaPlugin.getDefault().getJavaTextTools().getColorManager(), fPreferenceStore, null,
getDocumentPartitioning());
fSourceViewerConfigurations.add(sourceViewerConfiguration);
((SourceViewer)textViewer).configure(sourceViewerConfiguration);
}
/*
* @see org.eclipse.compare.contentmergeviewer.TextMergeViewer#getDocumentPartitioner()
*/
@Override
protected IDocumentPartitioner getDocumentPartitioner() {
return new FastPartitioner(new PropertiesFilePartitionScanner(), IPropertiesFilePartitions.PARTITIONS);
}
/*
* @see org.eclipse.compare.contentmergeviewer.TextMergeViewer#getDocumentPartitioning()
* @since 3.3
*/
@Override
protected String getDocumentPartitioning() {
return IPropertiesFilePartitions.PROPERTIES_FILE_PARTITIONING;
}
/*
* @see org.eclipse.compare.contentmergeviewer.ContentMergeViewer#getTitle()
*/
@Override
public String getTitle() {
return CompareMessages.PropertiesFileMergeViewer_title;
}
/*
* @see org.eclipse.compare.contentmergeviewer.TextMergeViewer#handleDispose(org.eclipse.swt.events.DisposeEvent)
* @since 3.5
*/
@Override
protected void handleDispose(DisposeEvent event) {
if (fPreferenceStore != null) {
fPreferenceStore.removePropertyChangeListener(fPreferenceChangeListener);
fPreferenceStore= null;
fPreferenceChangeListener= null;
fSourceViewerConfigurations= null;
}
super.handleDispose(event);
}
}