--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpx/commonframework/common/src/mpxmediaarray.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,291 @@
+/*
+* Copyright (c) 2006 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:  Implementation of array of media objects
+*
+*/
+
+
+#include "mpxmediaarray.h"
+#include "mpxmedia.h"
+#include "mpxcmn.h"
+
+// CONSTANTS
+//
+// Media attribute for the media object added to array
+//
+const TMPXAttributeData KMPXMediaArrayItem= {0x101FFC12, 0X01};
+
+// -----------------------------------------------------------------------------
+// CMPXMediaArray::NewL
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CMPXMediaArray* CMPXMediaArray::NewL()
+    {
+    CMPXMediaArray* a=new(ELeave)CMPXMediaArray();
+    CleanupStack::PushL(a);
+    a->ConstructL();
+    CleanupStack::Pop(a);
+    return a;
+    }
+
+// -----------------------------------------------------------------------------
+// CMPXMediaArray::NewL
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CMPXMediaArray* CMPXMediaArray::NewL(const CMPXMediaArray& aArray)
+    {
+    CMPXMediaArray* a=new(ELeave)CMPXMediaArray();
+    CleanupStack::PushL(a);
+    a->ConstructL(aArray);
+    CleanupStack::Pop(a);
+    return a;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CMPXMediaArray::~CMPXMediaArray()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Externalize
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::ExternalizeL(RWriteStream& aStream) const
+    {
+    DoExternalizeL(aStream,MMPXData::EMediaArray);
+    }
+
+// -----------------------------------------------------------------------------
+// Internalize. ConstructL() will have been called prior to this so there
+// will definitely be a iClientHandle, iDataHandle and iData, though there may or
+// may not be any data added. Either way, the data should be reset.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::InternalizeL(RReadStream& aStream)
+    {
+    DoInternalizeL(aStream,MMPXData::EMediaArray);
+    }
+
+// -----------------------------------------------------------------------------
+// Total number of objects contained in array
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CMPXMediaArray::Count() const
+    {
+    return CMPXMediaBase::Count();
+    }
+
+// -----------------------------------------------------------------------------
+// Array assessor
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CMPXMedia* CMPXMediaArray::operator[](TInt aIndex) const
+    {
+    return Value(aIndex);
+    }
+
+// -----------------------------------------------------------------------------
+// Get a pointer to the media object at the specified position within the array
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CMPXMedia* CMPXMediaArray::AtL(TInt aIndex) const
+    {
+    return ValueL(aIndex);
+    }
+
+// -----------------------------------------------------------------------------
+// Appends media object to array
+// Takes the ownship of aMedia
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::AppendL(const CMPXMedia* aMedia)
+    {
+    AppendL(*aMedia);
+    delete const_cast<CMPXMedia*>(aMedia);
+    }
+
+// -----------------------------------------------------------------------------
+// Appends media object to array
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::AppendL(const CMPXMedia& aMedia)
+    {
+    User::LeaveIfError(AddToArray(aMedia,CMPXMediaBase::Count()));
+    }
+
+// -----------------------------------------------------------------------------
+// Resets the media array
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::Reset()
+    {
+    MPX_ASSERT(iClientHandle&&iData);
+    //
+    ResetLocal(); // Local data
+    iData->Reset(iClientHandle); // Clears heap data for this object
+    }
+
+// -----------------------------------------------------------------------------
+// Removes the specified media from the array
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::Remove(TInt aIndex)
+    {
+    MPX_ASSERT(iData&&iClientHandle&&aIndex>=0&&aIndex<Count());
+    DeleteLocal(aIndex);
+    iData->Delete(iClientHandle,aIndex); // And data for this object
+    }
+
+// -----------------------------------------------------------------------------
+// Inserts the specified media into the array at the specified position
+// Takes the ownership of aMedia
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CMPXMediaArray::Insert(const CMPXMedia *aMedia, TInt aPos)
+    {
+    TInt r=AddToArray(*aMedia,aPos);
+    if (r==KErrNone)
+        {
+        delete const_cast<CMPXMedia*>(aMedia);
+        }
+    return r;
+    }
+
+// -----------------------------------------------------------------------------
+// Inserts the specified media into the array at the specified position
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CMPXMediaArray::Insert(const CMPXMedia& aMedia, TInt aPos)
+    {
+    return AddToArray(aMedia,aPos);
+    }
+
+// -----------------------------------------------------------------------------
+// Sets the specified media into the array at the specified position
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::Set(const CMPXMedia& aMedia, TInt aPos)
+    {
+    MMPXData::LockHeap( iClientHandle );
+    DeleteLocal(aPos);
+    (void)AddToArray(aMedia,aPos,ETrue);
+    MMPXData::UnlockHeap( iClientHandle );
+    }
+
+// -----------------------------------------------------------------------------
+// Inserts the specified media into the array at the specified position and
+// leave if an error is encountered
+// Takes ownership of the aMedia
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::InsertL(const CMPXMedia *aMedia, TInt aPos)
+    {
+    User::LeaveIfError(Insert(aMedia,aPos));
+    }
+
+// -----------------------------------------------------------------------------
+// Inserts the specified media into the array at the specified position and
+// leave if an error is encountered
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXMediaArray::InsertL(const CMPXMedia& aMedia, TInt aPos)
+    {
+    User::LeaveIfError(AddToArray(aMedia,aPos));
+    }
+
+
+// -----------------------------------------------------------------------------
+// The value for a specific index
+// -----------------------------------------------------------------------------
+//
+CMPXMedia* CMPXMediaArray::Value(TInt aIndex) const
+    {
+    CMPXMedia* m=NULL;
+    TRAP_IGNORE(m=ValueL(aIndex));
+    return m;
+    }
+
+// -----------------------------------------------------------------------------
+// The value for a specific index
+// -----------------------------------------------------------------------------
+//
+CMPXMedia* CMPXMediaArray::ValueL(TInt aIndex) const
+    {
+    MPX_ASSERT(iData&&iClientHandle&&aIndex>=0&&aIndex<Count());
+    //
+    CMPXMedia* obj=NULL;
+    //
+    // Check local values to see if there and current
+    //
+    LockHeapLC();
+    TInt uid=iData->Uid(iClientHandle,aIndex);
+    const TValue* v=LocalValue(uid);
+    if (!v)
+        {
+        TPtrC8 data=iData->Value(iClientHandle,aIndex);
+        TUint* ptr=(TUint*)data.Ptr();
+        //
+        // Check that it's really a media object
+        //
+        MPX_ASSERT(*(MMPXData::TMPXObjectType*)ptr==MMPXData::EMedia);
+        MPX_ASSERT(sizeof(TUint)+sizeof(TInt)==data.Size());
+        //
+        ++ptr; // Actual data offset
+        obj=CMPXMedia::NewL(*ptr); // new media object from the data
+        CleanupStack::PushL(obj);
+        CMPXMediaArray& theArray=*const_cast<CMPXMediaArray*>(this);
+        User::LeaveIfError(theArray.SetLocal(TValue(obj,uid,EMPXTypeCObject)));
+        CleanupStack::Pop(obj);
+        }
+    else
+        {
+        obj=static_cast<CMPXMedia*>(v->iValue);
+        }
+    CleanupStack::PopAndDestroy(); // unlock the heap
+    return obj;
+    }
+
+// -----------------------------------------------------------------------------
+// Inserts the specified media into the array at the specified position
+// -----------------------------------------------------------------------------
+//
+TInt CMPXMediaArray::AddToArray(const CMPXMedia& aMedia,TInt aPos,TBool aReplace)
+    {
+    MPX_ASSERT(iData&&iDataHandle&&iClientHandle);
+    const TInt KMediaStreamLen=sizeof(MMPXData::TMPXObjectType)+sizeof(TUint);
+    TBuf8<KMediaStreamLen> buf;
+    TUint* p=(TUint*)buf.Ptr();
+    *p=MMPXData::EMedia;
+    *++p=aMedia.Data();
+    buf.SetLength(KMediaStreamLen);
+    TInt r(KErrNone);
+    if (aReplace)
+        {
+        iData->Set(iClientHandle,KMPXMediaArrayItem,EMPXTypeCObject,buf,aPos);
+        }
+    else if (aPos==CMPXMediaBase::Count())
+        {
+        r=iData->Append(iClientHandle,KMPXMediaArrayItem,EMPXTypeCObject,buf);
+        }
+    else
+        {
+        r=iData->Insert(iClientHandle,KMPXMediaArrayItem,EMPXTypeCObject,buf,aPos);
+        }
+    return r;
+    }
+
+// END OF FILE