--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappfw_plat/mpx_common_api/inc/mpxmediabase.h	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,229 @@
+/*
+* Copyright (c) 2006, 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:  Encapsulates media base class
+*
+*/
+
+
+
+#ifndef CMPXMEDIABASE_H
+#define CMPXMEDIABASE_H
+
+// INCLUDES
+#include <s32strm.h>
+#include <mpxdata.h>
+#include <e32hashtab.h>
+
+//  FORWARD DECLARATIONS
+
+/**
+*  Base class of global data classes.
+*
+*  @lib mpxcommon.lib
+*/
+NONSHARABLE_CLASS(CMPXMediaBase) : public CBase
+    {
+protected:
+    /**
+    * Encapsulates a local value, uid and corresponding attribute type.
+    *
+    * @lib mpxcommon.lib
+    */
+    class TValue
+        {
+    public:
+        /**
+         * C++ constuctor.
+         *
+         * @since S60 3.2.3
+         * @param aValue pointer to the object of the media attribute
+         * @param aUid uid of the object
+         * @param aType type of the media attribute
+         */
+        inline TValue(TAny* aValue,TInt aUid,TMPXAttributeType aType);
+        
+    public:
+        TAny* iValue;
+        TInt iUid;
+        TMPXAttributeType iType;
+        };
+protected:
+     /**
+     * C++ default constructor.
+     *
+     * @since S60 3.2.3
+     */
+    CMPXMediaBase();
+
+    /**
+     * Destructor.
+     *
+     * @since S60 3.2.3
+     */
+    ~CMPXMediaBase();
+
+    /**
+    *  2nd phase contructor.
+    *
+    *  @since S60 3.2.3
+    */
+    void ConstructL();
+
+    /**
+    *  2nd phase contructor.
+    *
+    *  @since S60 3.2.3
+    *  @param aBase media base object to be copied
+    */
+    void ConstructL(const CMPXMediaBase& aBase);
+
+    /**
+    *  2nd phase contructor.
+    *
+    *  @since S60 3.2.3
+    *  @param aDataHandle data handle to the global object to be copied
+    */
+    void ConstructL(TInt aDataHandle);
+
+    /**
+    *  2nd phase contructor.
+    *
+    *  @since S60 3.2.3
+    *  @param aDataHandle data handle to the global oject to be copied
+    *  @param aData data object to be copied
+    *  @leave KErrArgument DataHandle is zero
+    */
+    void ConstructL(TInt aDataHandle,MMPXData& aData);
+
+    /**
+    *  2nd phase contructor.
+    *
+    *  @since S60 3.2.3
+    *  @param aBase media base object to be copied. Deep copy.
+    */
+    void CopyConstructL(const CMPXMediaBase& aBase);
+
+protected:
+    /**
+    * Clears all data associated with this object; ready to
+    * be assigned new data.
+    *
+    * @since S60 3.2.3
+    */
+    void Clear();
+
+    /**
+    * Clears locally cached contents.
+    *
+    * @since S60 3.2.3
+    */
+    virtual void ResetLocal();
+
+    /**
+    * Locally stored value, or NULL if not stored locally.
+    *
+    * @since S60 3.2.3
+    * @param aUid uid of the media attribute
+    * @return TValue object which holds local copy of the object
+    */
+    const TValue* LocalValue(TInt aUid) const;
+    
+    /**
+    * Set locally held data.
+    * 
+    * @since S60 3.2.3
+    * @param aValue value to be held
+    * @return KErrNone or KErrNoMemory
+    */
+    int SetLocal(const TValue& aValue);
+
+    /**
+     * Delete locally by index.
+     *
+     * @since S60 3.2.3
+     * @param aIndex index to the values array
+     */
+    void DeleteLocal(TInt aIndex);
+
+    /**
+    * Delete a pointer.
+    *
+    * @since S60 3.2.3
+    * @param aValue value to be deleted
+    * @aType media attribute type
+    */
+    void DeletePtr(TAny* aValue,TMPXAttributeType aType);
+
+    /**
+    * Externalize media object.
+    *
+    * @since S60 3.2.3
+    * @param aStream reference to the stream object
+    * @param aType object type
+    */
+    void DoExternalizeL(RWriteStream& aStream,MMPXData::TMPXObjectType aType) const;
+
+    /**
+    * Internalize media object.
+    *
+    * @since S60 3.2.3
+    * @param aStream reference to the stream object
+    * @param aType object type
+    * @leave KErrArgument aType is invalid
+    */
+    void DoInternalizeL(RReadStream& aStream,MMPXData::TMPXObjectType aType);
+
+    /**
+    * Number of values.
+    *
+    * @since S60 3.2.3
+    * @return number of media attributes in the global data
+    */
+    inline TInt Count() const;
+
+    /**
+    *  Lock heap and push UnlockHeap into cleanupstack.
+    *
+    * @since S60 3.2.3
+    */
+    void LockHeapLC() const;
+
+    /**
+    *  Cleanup operation which will be invoked by the CleanupStack::PopAndDestroy().
+    *
+    *  @since S60 3.2.3
+    *  @param aMediaBase a media based object
+    */
+    static void UnlockHeap(TAny* aMediaBase);
+
+private:
+    /**
+    * Delete locally held data.
+    * 
+    * @since S60 3.2.3
+    * @param aUid Uid of the value to be deleted
+    */
+    void DeleteLocalByUid(const TInt aUid);
+
+protected:
+    TUint iClientHandle; // Thread relative
+    TUint iDataHandle; // Global
+    MMPXData* iData; // Thread relative
+private:    
+    RHashMap<TInt, TValue> iValues;
+    };
+
+#include "mpxmediabase.inl"
+
+#endif // CMPXMEDIABASE_H