// Copyright (c) 2005-2009 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 "imageframebody.h"

#include "ImageClientMain.h"

/**

Destructor for CImageFrame::CBody class.

*/	

CImageFrame::CBody::~CBody()

	{

	delete iFormat;

	delete iLayout;	

	}

/**

Returns the format of the CImageFrame::CBody.

@return A const reference to the TFrameFormatBase object which describes the CImageFrame::CBody object format.

*/	    

const TFrameFormatBase& CImageFrame::CBody::FrameFormat() const

	{

	return *iFormat;

	}	

/**

Set the format of the CImageFrame::CBody.

@param aFormat

	   A const reference to TFrameFormatBase object used to set CImageFrame::CBody format.

*/	

void CImageFrame::CBody::SetFrameFormatL(const TFrameFormatBase& aFormat)

	{

	if (iFormat!=NULL)

		{

		delete iFormat;

		iFormat = NULL;

		}

	iFormat = static_cast<TFrameFormatBase*>(aFormat.DuplicateL());	

	}

/**

Returns the layout of the CImageFrame::CBody associated image data.

@return A const reference to TFrameLayoutBase which describes CImageFrame::CBody object particular layout.

*/

const TFrameLayoutBase& CImageFrame::CBody::FrameLayout() const

	{

	return *iLayout;

	}

/**

Set the layout of the CImageFrame::CBody associated image data.

@param aFrameLayout

	   A const reference to TFrameLayoutBase object used to set CImageFrame::CBody layout.

@leave KErrNoMemory.

*/		

void CImageFrame::CBody::SetFrameLayoutL(const TFrameLayoutBase& aFrameLayout)

	{

	if (iLayout!=NULL)

		{

		delete iLayout;

		iLayout = NULL;

		}

	iLayout = static_cast<TFrameLayoutBase*>(aFrameLayout.DuplicateL());

	}

/**

Returns the size in pixels of the image the CImageFrame::CBody refers to.

@return image size in pixels.

*/

const TSize& CImageFrame::CBody::FrameSizeInPixels() const

	{

	return iFrameSize;

	}

/**

Set the size in pixels of the image CImageFrame::CBody refers to.

@param aFrameSize

	   A const reference to TSize used to set CImageFrame::CBody format.

*/	

void CImageFrame::CBody::SetFrameSizeInPixels(const TSize& aFrameSize)

	{

	iFrameSize = aFrameSize;

	}

/**

Provides a writable TDes8 reference to the data buffer. 

Suitable both for reading and writing.

@return writable TDes8 reference.

*/	

TDes8& CImageFrame::CBody::Data()

	{

	return iBufferPtr;

	}

/**

Provides a TDesC8 reference to the data buffer. 

Suitable for reading of the data only.

@return const TDesC8 reference.

*/	

const TDesC8& CImageFrame::CBody::Data() const

	{

	return iBufferPtr;

	}

/**

Provides a RChunk reference. It will panic if the frame does not contain a chunk.

@return RChunk reference.

*/	

RChunk& CImageFrame::CBody::DataChunk()

	{

	__ASSERT_ALWAYS((iDataChunk!=NULL), Panic(EInvalidValue));

	return *iDataChunk;

	}

/**

Returns the offset of the CImageFrame::CBody specific data within the buffer object.

@return  data offset from CimageFrame buffer start.

*/

TInt CImageFrame::CBody::DataOffset() const

	{

	return iDataOffset;

	}

/**

Returns whether the specific CImageFrame object contains a Chunk or not. 

@return ETrue if the buffer is a chuk and EFalse of not. 

*/

TBool CImageFrame::CBody::IsChunk() const

	{

	return iIsChunk;

	}

/**

Returns the maximum buffer size as specified by the constructing entity.

@return the maximum buffer size. 

*/

TInt CImageFrame::CBody::MaxBufferSize() const

	{

	return iMaxBufferSize;

	}

/**

Static factory function used to create a CImageFrame::CBody object.

@param aHandle

       a reference to the owning CImageFrame object.

@param aBuffer

       a reference to the TDesc8 object the CImageFrame::CBody wraps around

@param aMaxBufferSize

	   the maximum buffer size. 

@return a pointer to a valid CImageFrame::CBody object.

@leave  KErrArgument

@leave  KErrNoMemory or other system wide error codes. 

*/

CImageFrame::CBody* CImageFrame::CBody::NewL(CImageFrame& aHandle, 

 											 const TDes8& aBuffer,

 											 TInt aMaxBufferSize)

	{

	CImageFrame::CBody* self =  new(ELeave) CImageFrame::CBody(aHandle, aBuffer); 

	CleanupStack::PushL(self);

	self->SetMaxSizeL(aMaxBufferSize);

	self->SetDefaultFormatL();

	CleanupStack::Pop();

	return self;	

	}

/**

Static factory function used to create a CImageFrame::CBody object.

@param aHandle

       a reference to the owning CImageFrame object.

@param aBuffer

       a reference to the TDesc8 object the CImageFrame::CBody wraps around.

@param aMaxBufferSize

	   the maximum buffer size. 

@param aFrameSize

       a reference to the TSize object to initialise the CImageFrame::CBody object.      

@param aFrameFormat

       a reference to the TFrameFormatBase to initialise the CImageFrame::CBody object.    

@param aFrameLayout

       a reference to the TFrameLayoutBase to initialise the CImageFrame::CBody object.

@return a pointer to a valid CImageFrame::CBody object.       

@leave  KErrArgument

@leave  KErrNoMemory or other system wide error code.

*/						  

CImageFrame::CBody* CImageFrame::CBody::NewL(CImageFrame& aHandle, 

										 	 const TDes8& aBuffer, TInt aMaxBufferSize,

						   					 const TSize& aFrameSize, 

										 	 const TFrameFormatBase& aFrameFormat,

											 const TFrameLayoutBase& aFrameLayout)

	{

	CImageFrame::CBody* self =  new(ELeave) CImageFrame::CBody(aHandle, aBuffer); 

	CleanupStack::PushL(self);

	self->SetMaxSizeL(aMaxBufferSize);

	self->StoreAddParamL(aFrameSize, aFrameFormat, aFrameLayout);

	CleanupStack::Pop();

	return self;

	}

/**

Static factory function used to create a CImageFrameRChunk object.

@param aHandle

       a reference to the owning CImageFrame object.

@param aBuffer

       a reference to the RChunk object the CImageFrameRChunk wraps around.

@param aMaxBufferSize

	   the maximum buffer size.       

@param aDataOffset

       The offset at which the data for this frame starts.       

@return a pointer to a valid CImageFrame::CBody object.

@leave  KErrArgument

@leave  KErrNoMemory or other system wide error code.

*/

CImageFrame::CBody* CImageFrame::CBody::NewL(CImageFrame& aHandle, 

											const RChunk* aBuffer, 

											TInt aMaxBufferSize, 

											TInt aDataOffset)

	{

	CImageFrame::CBody* self = new(ELeave) CImageFrame::CBody(aHandle); 

	CleanupStack::PushL(self);

	self->StoreChunkL(aBuffer, aMaxBufferSize, aDataOffset);

	self->SetDefaultFormatL();

	CleanupStack::Pop();

	return self;	

	}

/**

Static factory function used to create a CImageFrameRChunk object.

@param aHandle

       a reference to the owning CImageFrame object.

@param aBuffer

       a reference to the RChunk object the CImageFrameRChunk wraps around.

@param aMaxBufferSize

	   the maximum buffer size.            

@param aDataOffset

       The offset at which the data for this frame starts. 

@param aFrameSize

       a reference to the TSize object to initialise the CImageFrameRChunk object.

@param aFrameFormat

       a reference to the TFrameFormatBase to initialise the CImageFrameRChunk object. 

@param aFrameLayout

       a reference to the TFrameLayoutBase to initialise the CImageFrameRChunk object.      

@return a pointer to a valid CImageFrame::CBody object.

@leave  KErrArgument

@leave  KErrNoMemory or other system wide error code.

*/

CImageFrame::CBody* CImageFrame::CBody::NewL(CImageFrame& aHandle,const RChunk* aBuffer, 

											TInt aMaxBufferSize,

											TInt aDataOffset, 

											const TSize& aFrameSize,

											const TFrameFormatBase& aFrameFormat,																	    	

											const TFrameLayoutBase& aFrameLayout)

	{

	CImageFrame::CBody* self = new(ELeave) CImageFrame::CBody(aHandle); 

	CleanupStack::PushL(self);

	self->StoreChunkL(aBuffer, aMaxBufferSize, aDataOffset);

	self->StoreAddParamL(aFrameSize, aFrameFormat, aFrameLayout);

	CleanupStack::Pop();

	return self;

	}

/**

CImageFrame::CBody constructor.

@param aHandle

       a reference to the owning CImageFrame object.      

*/			

CImageFrame::CBody::CBody(CImageFrame& aHandle) : 

						iHandle(aHandle),

	  					iBufferPtr(0,0),

	  					iIsChunk(ETrue)							

	{

	}

/**

CImageFrame::CBody constructor.

@param aHandle

       a reference to the owning CImageFrame object.

@param aBuffer

       a reference to the TDes8 object the CImageFrame::Body object contains.      

*/	

CImageFrame::CBody::CBody(CImageFrame& aHandle, const TDes8& aBuffer) : 

												iHandle(aHandle),			   

												iBufferPtr((TUint8*)(aBuffer.Ptr()), aBuffer.Size(), aBuffer.MaxLength()),

												iIsChunk(EFalse)

	{

	}

/**

Stores the maximum size of the buffer

@param aMaxBufferSize

       buffer maximum size.

@leave KErrArgument.      

*/	

void CImageFrame::CBody::SetMaxSizeL(TInt aMaxBufferSize)

	{

	if (aMaxBufferSize <= 0)

		{

		User::Leave(KErrArgument);

		}

	iMaxBufferSize = aMaxBufferSize;

	}

/** 

Function used to store the chunk relevant information.

@param aBuffer

	   a pointer to a valid RChunk object.

@param aMaxBufferSize

		buffer maximum size.

@param aDataOffset

	   The offset of the data in the CImageFrame::CBody object from the start of the chunk. 

@leave KErrArgument

*/

void CImageFrame::CBody::StoreChunkL(const RChunk* aBuffer, TInt aMaxBufferSize, TInt aDataOffset)

	{

	if (aBuffer == NULL)

		{

		User::Leave(KErrArgument);

		}

	if (aDataOffset < 0)

		{

		User::Leave(KErrArgument);

		}

	SetMaxSizeL(aMaxBufferSize);	

	iDataOffset = aDataOffset;

	iDataChunk = (RChunk*)aBuffer;

	iBufferPtr.Set((iDataChunk->Base() + iDataOffset), iDataChunk->Size(), iDataChunk->MaxSize());

	}

/**

Initialise CImageFrame::CBody object.

@param aSize

	   a reference to a TSize object containing image size in pixels. 

@param aFormat

	   a reference to a TFrameFormatBase object containing image format information. 	

@param aLayout

	   a reference to FrameLayoutBase object containing image layout information.

@leave KErrNoMemory

*/	

void CImageFrame::CBody::StoreAddParamL( const TSize& aSize, 

					 				     const TFrameFormatBase& aFormat,								   

									     const TFrameLayoutBase& aLayout)

	{

	iFrameSize = aSize;

	if (iFormat!=NULL)

		{

		delete iFormat;

		iFormat = NULL;

		}

	iFormat = (TFrameFormatBase*)aFormat.DuplicateL();

	if (iLayout!=NULL)

		{

		delete iLayout;

		iLayout = NULL;

		}

	iLayout = (TFrameLayoutBase*)aLayout.DuplicateL();

	}

/**

Sets default Frame Format and Frame Layout for this version of Image Frame

@leave KErrNoMemory

*/	

void CImageFrame::CBody::SetDefaultFormatL()

	{

	iFormat = new (ELeave) TFrameFormat(KNullUid);

	iLayout = new (ELeave) TFrameLayout(0);

	}

/*

Used for padding the BWINS def file.

*/

#ifdef __WINS__

EXPORT_C void Reserved1()

	{

	}

#endif // __WINS__