mtpfws/mtpfw/src/tmtptypeobjecthandle.cpp
changeset 0 d0791faffa3f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/src/tmtptypeobjecthandle.cpp	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,85 @@
+// Copyright (c) 2006-2009 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:
+//
+
+
+#include "tmtptypeobjecthandle.h"
+#include <mtp/tmtptypeuint32.h>
+
+/**
+Constructor.
+@param aId The data provider unique object identifier.
+@param aDp The ID of the data provider responsible for the object.
+*/
+TMTPTypeObjectHandle::TMTPTypeObjectHandle(TUint32 aId, TUint8 aDp) : 
+    TMTPTypeUint32(aId)
+    {
+    __ASSERT_DEBUG((aId <= KObjectIdMax), User::Invariant());
+    SetDPHandle(aDp);
+    }
+    
+/**
+Destructor.
+*/
+TMTPTypeObjectHandle::~TMTPTypeObjectHandle()
+    {
+    }
+
+/**
+Constructor.
+@param aId The data provider unique object identifier.
+@param aDp The ID of the data provider responsible for the object.
+*/
+TMTPTypeObjectHandle::TMTPTypeObjectHandle(TMTPTypeUint32 aId, TUint8 aDp) : TMTPTypeUint32(aId)
+    {
+    __ASSERT_DEBUG((aId.Value() <= KObjectIdMax), User::Invariant());
+    SetDPHandle(aDp);
+    }
+
+/**
+Constructor.
+@param aHandle A valid encoded 32-bit MTP object handle.
+*/
+TMTPTypeObjectHandle::TMTPTypeObjectHandle(TMTPTypeUint32 aHandle) : 
+    TMTPTypeUint32(aHandle)
+    {   
+    }
+    
+/**
+Provides the ID of the data provider responsible for the object.
+@return The ID of the data provider responsible for the object.
+*/
+TUint8 TMTPTypeObjectHandle::DpId() const
+    {
+    return (Value() & KDpMask) >> KObjectIdWidth;
+    }
+
+/**
+Provides the DP's unique object ID for the object.
+@return The object's unique DP ID.
+*/
+TUint32 TMTPTypeObjectHandle::DPObjectId() const
+    {
+    return Value() & ~KDpMask;
+    }
+
+/**
+Encodes the given data provider ID into the top eight bits of this data type
+
+@param aDp The ID of the data provider responsible for the object.
+*/
+void TMTPTypeObjectHandle::SetDPHandle(TUint8 aDp)
+    {
+    Set(Value() | (aDp << KObjectIdWidth));
+    }