// Copyright (c) 2000-2009 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 "scrdevextension.h"

#include "../SERVER/w32cmd.h"

#include <graphics/displaycontrolbase.h>

#include "CLIENT.H"

#include "w32comm.h"

CWsScreenDevice::CScrDevExtension::CScrDevExtension(RWsBuffer *aBuffer,TInt32 aWsHandle):	MWsClientClass(aBuffer)

	{

	iWsHandle=aWsHandle;

	__ASSERT_DEBUG(aBuffer,Panic(EW32PanicBadClientInterface));

	__ASSERT_DEBUG(aWsHandle,Panic(EW32PanicBadClientInterface));

	}

CWsScreenDevice::CScrDevExtension::~CScrDevExtension()

	{

	//typeface store is not owned by this class, and is created/destroyed in CWsScreenDevice

	}

/** Interface Extension capability

 * 	Use of this interface going forward will allow the published client interface to be dynamically extended.

 * 	Note that the pointer returned is only good for the lifetime of the called CBase derived object.

 * 	@pre	caller has already checked that the implementation is initialised using RepeatableConstruct

 *	@param  aInterfaceId	uniqueid or well known id of interface

 * 	@return	pointer to interface object matching this ID or NULL if no match.

 **/

void* CWsScreenDevice::CScrDevExtension::GetInterface(TUint aInterfaceId)

	{

	__ASSERT_DEBUG(this!=NULL,Panic(EW32PanicBadClientInterface));

	__ASSERT_DEBUG(iBuffer,Panic(EW32PanicBadClientInterface));

	__ASSERT_DEBUG(iWsHandle!=NULL,Panic(EW32PanicBadClientInterface));

	switch (aInterfaceId)

		{

		case MTestScreenCapture::ETypeId:

			{

				return static_cast<MTestScreenCapture*>(this);

			}

		default:

			break;

		}

	return NULL;

}

//Accessor to typeface store instance

CFbsTypefaceStore* CWsScreenDevice::CScrDevExtension::TypefaceStore()

	{

	return iTypefaceStore;

	}

//Accessor to typeface store instance

void  CWsScreenDevice::CScrDevExtension::SetTypefaceStore(CFbsTypefaceStore* aTypeFaceStore)

	{

	iTypefaceStore=aTypeFaceStore;

	}

TInt CWsScreenDevice::CScrDevExtension::TranslateExtent(const TRect& aInitial, TRect& aTarget) const

	{

  	// Current screen mode scale

	TPckgBuf<TSize> pntPkg;

	TInt err = WriteReplyP(&pntPkg,EWsSdOpGetCurrentScreenModeScale);

	TSize scale = pntPkg();	

	// Current screen mode offset

	TPckgBuf<TPoint> soPkg;

	err = WriteReplyP(&soPkg,EWsSdOpGetCurrentScreenModeScaledOrigin);

	TPoint offset = soPkg();

	// Calculate the top left point taking into account scale and offset

	TInt startingPointWidth = (scale.iWidth * aInitial.iTl.iX) + offset.iX;

	TInt startingPointHeight = (scale.iHeight * aInitial.iTl.iY) + offset.iY;	

	TPoint targetXY(startingPointWidth,startingPointHeight);

	// Calculate the extent size taking into account scale

	TInt targetWidth = (scale.iWidth * aInitial.Width());

	TInt targetHeight = (scale.iHeight * aInitial.Height());

	TSize targetSize(targetWidth,targetHeight);

	aTarget.SetRect(targetXY,targetSize);

	return err;

	}

/** Gets the size of the screen device area in pixels.

This function always causes a flush of the window server buffer.

@return The x and y dimensions of the screen device area, in pixels. 

@see CGraphicsDevice::SizeInPixels() */

TInt CWsScreenDevice::CScrDevExtension::GetCompositedSize(TSize& aSize) const

	{

	TPckgBuf<TSize> sizePkg;

  	TInt err = WriteReplyP(&sizePkg,EWsSdOpPixelSize);

  	aSize = sizePkg();

	return err;

	}

/** Saves the entire screen to a bitmap.

This function always causes a flush of the window server buffer.

@param aBitmap Bitmap to be filled with the screen image. 

@return KErrNone if successful, otherwise one of the system-wide error codes. */

TInt CWsScreenDevice::CScrDevExtension::ComposeScreen(const CFbsBitmap& aBitmap) const

	{

	TInt bitmapHandle = aBitmap.Handle();

	AddToBitmapArray(bitmapHandle);

	TWsSdCmdCopyScreenToBitmap rectCompare(bitmapHandle);

	return(WriteReply(&rectCompare,sizeof(rectCompare),EWsSdOpCopyScreenToBitmap));

	}