diff -r 86af6c333601 -r 0446eb7b28aa smf/inc/common/smfmusic/smfmusicrating.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smf/inc/common/smfmusic/smfmusicrating.h	Thu Apr 15 15:35:36 2010 +0530
@@ -0,0 +1,124 @@
+/**
+ * Copyright (c) 2010 Sasken Communication Technologies Ltd.
+ * All rights reserved.
+ * This component 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 the URL "http://www.eclipse.org/legal/epl-v10.html"
+ *
+ * Initial Contributors:
+ * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution
+ *
+ * Contributors:
+ * Manasij Roy, Nalina Hariharan
+ * 
+ * Description:
+ * The music rating class represents an instance of rating 
+ * about a music track
+ *
+ */
+
+#ifndef SMFMUSICRATING_H_
+#define SMFMUSICRATING_H_
+
+#include <QObject>
+#include <QSharedData>
+#include <smfclientglobal.h>
+
+class SmfTrackInfo;
+class SmfMusicRatingPrivate;
+
+/**
+ * Indicates range of values to represent ratings,
+ * SP should normalize their rating value to this scale
+ */
+const int SMF_MAX_RATING = 10;
+const int SMF_MIN_RATING = 0;
+
+/**
+ * @ingroup smf_common_group
+ * The music rating class represents an instance of rating 
+ * about a music track 
+ */
+class SMFCLIENT_EXPORT SmfMusicRating : public QObject
+	{
+	Q_OBJECT
+public:
+	/**
+	 * Constructor with default argument
+	 * @param aParent The parent object
+	 * (parent should be of type SmfTrackInfo)
+	 */
+	SmfMusicRating(SmfTrackInfo *aParent = 0);
+	
+	/**
+	 * Copy Constructor
+	 * @param aOther The reference object
+	 */
+	SmfMusicRating( const SmfMusicRating &aOther );
+	
+	/**
+	 * Overloaded = operator 
+	 * @param aOther The reference object
+	 */
+	SmfMusicRating& operator=( const SmfMusicRating &aOther );
+	
+	/**
+	 * Destructor
+	 */
+	~SmfMusicRating( );
+	
+	/**
+	 * Method to get the rating
+	 * @return The rating value
+	 */
+	int rating( ) const;
+
+	/**
+	 * Method to get the max rating
+	 * @return The max rating value
+	 */
+	int maxRating( ) const;
+	
+	/**
+	 * Method to get the min rating
+	 * @return The min rating value
+	 */
+	int minRating( ) const;
+	
+private:
+	QSharedDataPointer<SmfMusicRatingPrivate> d;
+	
+	friend QDataStream &operator<<( QDataStream &aDataStream, 
+			const SmfMusicRating &aMusicRating );
+
+	friend QDataStream &operator>>( QDataStream &aDataStream, 
+			SmfMusicRating &aMusicRating );
+	
+	};
+
+
+/**
+ * Method for Externalization. Writes the SmfMusicRating object to 
+ * the stream and returns a reference to the stream.
+ * @param aDataStream Stream to be written
+ * @param aMusicRating The SmfMusicRating object to be externalized
+ * @return reference to the written stream
+ */
+QDataStream &operator<<( QDataStream &aDataStream, 
+		const SmfMusicRating &aMusicRating );
+
+/**
+ * Method for Internalization. Reads a SmfMusicRating object from 
+ * the stream and returns a reference to the stream.
+ * @param aDataStream Stream to be read
+ * @param aMusicRating The SmfMusicRating object to be internalized
+ * @return reference to the stream
+ */
+QDataStream &operator>>( QDataStream &aDataStream, 
+		SmfMusicRating &aMusicRating);
+
+// Make the class SmfMusicRating known to QMetaType, so that as to register it.
+Q_DECLARE_METATYPE(SmfMusicRating)
+
+#endif /* SMFMUSICRATING_H_ */