| /******************************************************************************* |
| * Copyright (c) 2005, 2015 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 java.util.ArrayList; |
| import java.util.Iterator; |
| import org.eclipse.compare.CompareConfiguration; |
| import org.eclipse.compare.contentmergeviewer.TextMergeViewer; |
| 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.SWT; |
| 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; |
| private ArrayList<IPropertyChangeListener> fPropertyChangedListeners; |
| |
| public PluginContentMergeViewer(Composite parent, CompareConfiguration config) { |
| super(parent, SWT.LEFT_TO_RIGHT, config); |
| } |
| |
| @Override |
| 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() { |
| @Override |
| public void widgetDisposed(DisposeEvent e) { |
| configuration.dispose(); |
| } |
| }); |
| IPropertyChangeListener propertyChangedListener = new IPropertyChangeListener() { |
| @Override |
| 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(); |
| } |
| } |
| }; |
| PDEPlugin.getDefault().getPreferenceStore().addPropertyChangeListener(propertyChangedListener); |
| |
| if (fPropertyChangedListeners == null) |
| fPropertyChangedListeners = new ArrayList<>(3); |
| fPropertyChangedListeners.add(propertyChangedListener); |
| ((SourceViewer) textViewer).configure(configuration); |
| Font font = JFaceResources.getFont(PluginContentMergeViewer.class.getName()); |
| if (font != null) |
| ((SourceViewer) textViewer).getTextWidget().setFont(font); |
| } |
| } |
| |
| @Override |
| protected IDocumentPartitioner getDocumentPartitioner() { |
| return new FastPartitioner(new XMLPartitionScanner(), XMLPartitionScanner.PARTITIONS); |
| } |
| |
| @Override |
| protected String getDocumentPartitioning() { |
| return XMLDocumentSetupParticpant.XML_PARTITIONING; |
| } |
| |
| @Override |
| public String getTitle() { |
| return PDEUIMessages.PluginContentMergeViewer_title; |
| } |
| |
| @Override |
| protected void handleDispose(DisposeEvent event) { |
| super.handleDispose(event); |
| if (fColorManager != null) |
| fColorManager.dispose(); |
| if (fPropertyChangedListeners != null) { |
| Iterator<IPropertyChangeListener> iter = fPropertyChangedListeners.iterator(); |
| while (iter.hasNext()) |
| PDEPlugin.getDefault().getPreferenceStore().removePropertyChangeListener(iter.next()); |
| fPropertyChangedListeners = null; |
| } |
| } |
| } |