--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/tracebuilder/com.nokia.tracebuilder/src/com/nokia/tracebuilder/engine/source/SourceEngineModelExtensionListener.java	Wed Jun 23 14:35:40 2010 +0300
@@ -0,0 +1,90 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+* Trace model extension listener implementation for SourceEngine
+*
+*/
+package com.nokia.tracebuilder.engine.source;
+
+import com.nokia.tracebuilder.model.TraceModel;
+import com.nokia.tracebuilder.model.TraceModelExtension;
+import com.nokia.tracebuilder.model.TraceModelExtensionListener;
+import com.nokia.tracebuilder.model.TraceObject;
+
+/**
+ * Trace model extension listener implementation for SourceEngine
+ * 
+ */
+final class SourceEngineModelExtensionListener implements
+		TraceModelExtensionListener {
+
+	/**
+	 * Source engine
+	 */
+	private final SourceEngine sourceEngine;
+
+	/**
+	 * Constructor
+	 * 
+	 * @param engine
+	 *            the source engine
+	 */
+	SourceEngineModelExtensionListener(SourceEngine engine) {
+		sourceEngine = engine;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.model.TraceModelListener#
+	 *      extensionAdded(com.nokia.tracebuilder.model.TraceObject,
+	 *      com.nokia.tracebuilder.model.TraceModelExtension)
+	 */
+	public void extensionAdded(TraceObject object, TraceModelExtension extension) {
+		// Parser rules that are added to model are taken into use
+		if (object instanceof TraceModel
+				&& extension instanceof SourceParserRule) {
+			sourceEngine.parserAdded((SourceParserRule) extension);
+		} else if (extension instanceof TraceFormattingRule) {
+			sourceEngine.ruleUpdated(object);
+		} else if (extension instanceof TraceParameterFormattingRule) {
+			sourceEngine.ruleUpdated(object);
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.nokia.tracebuilder.model.TraceModelListener#
+	 *      extensionRemoved(com.nokia.tracebuilder.model.TraceObject,
+	 *      com.nokia.tracebuilder.model.TraceModelExtension)
+	 */
+	public void extensionRemoved(TraceObject object,
+			TraceModelExtension extension) {
+		// Parser rules that are removed from model are removed from sources
+		if (object instanceof TraceModel
+				&& extension instanceof SourceParserRule) {
+			sourceEngine.parserRemoved((SourceParserRule) extension);
+		} else if (extension instanceof TraceFormattingRule) {
+			// When changing formatting, the existing formatting rule will
+			// be removed and a new one added. When formatting rule is
+			// removed, the trace must not be updated since it would
+			// disappear from the source
+		} else if (extension instanceof TraceParameterFormattingRule) {
+			sourceEngine.ruleUpdated(object);
+		}
+	}
+
+}
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