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The source code/******************************************************************************* * Copyright (c) 2005, 2006 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.pde.internal.ui.compare; import org.eclipse.compare.CompareConfiguration; import org.eclipse.compare.contentmergeviewer.TextMergeViewer; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.resource.JFaceResources; 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.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.pde.internal.ui.PDEPlugin; import org.eclipse.pde.internal.ui.PDEUIMessages; import org.eclipse.pde.internal.ui.editor.context.XMLDocumentSetupParticpant; import org.eclipse.pde.internal.ui.editor.text.*; import org.eclipse.swt.events.DisposeEvent; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.widgets.Composite; public class PluginContentMergeViewer extends TextMergeViewer { private IColorManager fColorManager; public PluginContentMergeViewer(Composite parent, CompareConfiguration config) { super(parent, config); } protected void configureTextViewer(final TextViewer textViewer) { if (textViewer instanceof SourceViewer) { if (fColorManager == null) fColorManager = ColorManager.getDefault(); final XMLConfiguration configuration = new XMLConfiguration(fColorManager); textViewer.getControl().addDisposeListener(new DisposeListener() { public void widgetDisposed(DisposeEvent e) { configuration.dispose(); } }); IPreferenceStore store = PDEPlugin.getDefault().getPreferenceStore(); store.addPropertyChangeListener(new IPropertyChangeListener() { public void propertyChange(PropertyChangeEvent event) { // the configuration will test if the properties affect the presentation also, // but checking it here allows us to prevent the viewer from being invalidated // and saves some unnecessary work if (configuration.affectsColorPresentation(event) || configuration.affectsTextPresentation(event)) { configuration.adaptToPreferenceChange(event); textViewer.invalidateTextPresentation(); } } }); ((SourceViewer) textViewer).configure(configuration); Font font = JFaceResources.getFont(PluginContentMergeViewer.class.getName()); if (font != null) ((SourceViewer) textViewer).getTextWidget().setFont(font); } } protected IDocumentPartitioner getDocumentPartitioner() { return new FastPartitioner(new XMLPartitionScanner(), XMLPartitionScanner.PARTITIONS); } protected String getDocumentPartitioning() { return XMLDocumentSetupParticpant.XML_PARTITIONING; } public String getTitle() { return PDEUIMessages.PluginContentMergeViewer_title; } protected void handleDispose(DisposeEvent event) { if (fColorManager != null) fColorManager.dispose(); super.handleDispose(event); } } |
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