--- /dev/null
+/*
+ * Copyright (c) 2002-2004 Widespace, OU and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * Igor Malinin - initial contribution
+ *
+ * $Id: DTDMergeViewer.java,v 1.1 2004-09-02 18:28:05 jsurfer Exp $
+ */
+
+package net.sourceforge.phpeclipse.xml.ui.internal.compare;
+
+import org.eclipse.compare.CompareConfiguration;
+import org.eclipse.compare.contentmergeviewer.TextMergeViewer;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.preference.PreferenceConverter;
+import org.eclipse.jface.text.IDocumentPartitioner;
+import org.eclipse.jface.text.TextViewer;
+import org.eclipse.jface.text.source.SourceViewer;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.graphics.RGB;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.texteditor.AbstractTextEditor;
+
+import net.sourceforge.phpeclipse.xml.ui.XMLPlugin;
+import net.sourceforge.phpeclipse.xml.ui.internal.text.DTDConfiguration;
+import net.sourceforge.phpeclipse.xml.ui.text.DTDTextTools;
+
+/**
+ * @author Igor Malinin
+ */
+public class DTDMergeViewer extends TextMergeViewer {
+
+ /**
+ * The preference store.
+ */
+ private IPreferenceStore preferenceStore;
+
+ /**
+ * The listener for changes to the preference store.
+ */
+ private IPropertyChangeListener propertyChangeListener;
+
+ /**
+ * The DTD text tools.
+ */
+ private DTDTextTools textTools;
+
+ /*
+ * @see TextMergeViewer#TextMergeViewer(Composite, int, CompareConfiguration)
+ */
+ public DTDMergeViewer(
+ Composite parent, int style, CompareConfiguration configuration
+ ) {
+ super(parent, style, configuration);
+ }
+
+ // TextMergeViewer Implementation ------------------------------------------
+
+ /*
+ * @see TextMergeViewer#configureTextViewer()
+ */
+ protected void configureTextViewer(TextViewer textViewer) {
+ XMLPlugin plugin = XMLPlugin.getDefault();
+
+ preferenceStore = plugin.getPreferenceStore();
+ if (preferenceStore != null) {
+ propertyChangeListener = new IPropertyChangeListener() {
+ public void propertyChange(PropertyChangeEvent event) {
+ handlePreferenceStoreChanged(event);
+ }
+ };
+ preferenceStore.addPropertyChangeListener(propertyChangeListener);
+ }
+
+ textTools = plugin.getDTDTextTools();
+
+ if (textViewer instanceof SourceViewer) {
+ SourceViewer sourceViewer = (SourceViewer) textViewer;
+ sourceViewer.configure(new DTDConfiguration(textTools));
+ }
+
+ updateBackgroundColor();
+ }
+
+ /*
+ * @see TextMergeViewer#getDocumentPartitioner()
+ */
+ protected IDocumentPartitioner getDocumentPartitioner() {
+ return textTools.createDTDPartitioner();
+ }
+
+ /*
+ * @see org.eclipse.compare.contentmergeviewer.ContentMergeViewer#getTitle()
+ */
+ public String getTitle() {
+ return XMLPlugin.getResourceString("DTDMergeViewer.title"); //$NON-NLS-1$
+ }
+
+ /*
+ * @see org.eclipse.jface.viewers.ContentViewer#handleDispose(org.eclipse.swt.events.DisposeEvent)
+ */
+ protected void handleDispose(DisposeEvent event) {
+ if (propertyChangeListener != null) {
+ if (preferenceStore != null) {
+ preferenceStore
+ .removePropertyChangeListener(propertyChangeListener);
+ }
+
+ propertyChangeListener = null;
+ }
+
+ super.handleDispose(event);
+ }
+
+ protected void handlePreferenceStoreChanged(PropertyChangeEvent event) {
+ String p = event.getProperty();
+
+ if (p.equals(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND) ||
+ p.equals(AbstractTextEditor
+ .PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT)
+ ) {
+ updateBackgroundColor();
+ } else if (textTools.affectsBehavior(event)) {
+ invalidateTextPresentation();
+ }
+ }
+
+ private void updateBackgroundColor() {
+ boolean defaultBackgroundColor = preferenceStore.getBoolean(
+ AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT);
+
+ if (defaultBackgroundColor) {
+ setBackgroundColor(null);
+ } else {
+ RGB backgroundColor = PreferenceConverter
+ .getColor(preferenceStore,
+ AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND);
+ setBackgroundColor(backgroundColor);
+ }
+ }
+}