sl@0: // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Shells for window server bitmap class
sl@0: // Note: Note: A pointer to CWsBitmap must have the same pointer value as a pointer
sl@0: // to the associated CFbsBitmap, otherwise code in BitGdi component will be
sl@0: // Broken.
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include "../SERVER/w32cmd.h"
sl@0: #include "CLIENT.H"
sl@0: 
sl@0: 
sl@0: EXPORT_C CWsBitmap::CWsBitmap()
sl@0: /** Default constructor. Developers should use the other constructor overload. */
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CWsBitmap::CWsBitmap(RWsSession &aWs) : MWsClientClass(aWs.iBuffer)
sl@0: /** Constructor which takes a window server session as an argument.
sl@0: 
sl@0: @param aWs Handle to window server session. */
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: EXPORT_C CWsBitmap::~CWsBitmap()
sl@0: /** Destructor. */
sl@0: 	{
sl@0: 	Reset();
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CWsBitmap::Reset()
sl@0: /** Releases the bitmap's handle from the font and bitmap server.
sl@0: 
sl@0: The function also decrements the bitmap's access count in the font and bitmap 
sl@0: server. The server-side bitmap is deleted only if the access count for the 
sl@0: bitmap decrements to zero. */
sl@0: 	{
sl@0: 	if (iBuffer && iWsHandle)
sl@0: 		Write(EWsBitmapOpFree);
sl@0: 	iWsHandle=NULL;
sl@0: 	CFbsBitmap::Reset();
sl@0: 	}
sl@0: 
sl@0: TInt CWsBitmap::createWsBitmap(TInt aErr)
sl@0: 	{
sl@0: 	if (aErr==KErrNone)
sl@0: 		{
sl@0: 		TWsClCmdCreateBitmap createBitmap;
sl@0: 		createBitmap.handle=Handle();
sl@0: 		TInt ret;
sl@0: 		if ((ret=iBuffer->WriteReplyWs(&createBitmap,sizeof(createBitmap),EWsClOpCreateBitmap))<0)
sl@0: 			{
sl@0: 			CFbsBitmap::Reset();
sl@0: 			aErr=ret;
sl@0: 			}
sl@0: 		else
sl@0: 			iWsHandle=ret;
sl@0: 		}
sl@0: 	return(aErr);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt CWsBitmap::Create(const TSize& aSizeInPixels,TDisplayMode aDispMode)
sl@0: /** Creates a bitmap, specifying the size and display mode.
sl@0: 
sl@0: This function, if successful, always causes a flush of the window server buffer.
sl@0: 
sl@0: @param aSizeInPixels The size of the bitmap to be created. 
sl@0: @param aDispMode The display-mode of the bitmap to be created. 
sl@0: @return KErrNone if successful, KErrCouldNotConnect if no connection to the 
sl@0: font and bitmap server could be made, KErrArgument if aSizeInPixels is illegal.
sl@0: @see CFbsBitmap::Create() */
sl@0: 	{
sl@0: 	Reset();
sl@0: 	return(createWsBitmap(CFbsBitmap::Create(aSizeInPixels,aDispMode)));
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt CWsBitmap::Duplicate(TInt aHandle)
sl@0: /** Makes this bitmap a duplicate of the specified bitmap.
sl@0: 
sl@0: This function, if successful, always causes a flush of the window server buffer.
sl@0: 
sl@0: @param aHandle The handle of the bitmap to be duplicated. 
sl@0: @return KErrNone if successful, KErrCouldNotConnect if no connection to the 
sl@0: font and bitmap server could be made, or KErrUnknown if no bitmap could be 
sl@0: found whose handle is aHandle. 
sl@0: @see CFbsBitmap::Duplicate() */
sl@0: 	{
sl@0: 	Reset();
sl@0: 	return(createWsBitmap(CFbsBitmap::Duplicate(aHandle)));
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt CWsBitmap::Load(const TDesC& aFileName,TInt32 aId,TBool aShareIfLoaded)
sl@0: /** Loads a bitmap from a file.
sl@0: 
sl@0: If aShareIfLoaded is ETrue the bitmap will be allowed to be shared by a number 
sl@0: of font and bitmap server clients.
sl@0: 
sl@0: This function, if successful, always causes a flush of the window server buffer.
sl@0: 
sl@0: @param aFileName The filename of the multibitmap (.mbm) file containing the 
sl@0: bitmap to be loaded. 
sl@0: @param aId The identifier of the bitmap in the .mbm file which should be loaded.
sl@0: @param aShareIfLoaded Specifies whether or not the loaded bitmap will be made 
sl@0: available for sharing between font and bitmap server clients. 
sl@0: @return KErrNone if successful, otherwise KErrCouldNotConnect, KErrEof, or 
sl@0: an error specific to the font and bitmap server.
sl@0: @see CFbsBitmap::Load() */
sl@0: 	{
sl@0: 	Reset();
sl@0: 	return(createWsBitmap(CFbsBitmap::Load(aFileName,aId,aShareIfLoaded)));
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CWsBitmap::InternalizeL(RReadStream& aStream)
sl@0: /** Internalises a CWsBitmap from the read stream.
sl@0: 
sl@0: The presence of this function means that the standard templated operator>>() 
sl@0: can be used to internalise objects of this class.
sl@0: 
sl@0: This function always causes a flush of the window server buffer.
sl@0: 
sl@0: @param aStream The stream from which to internalise the bitmap. */
sl@0: 	{
sl@0: 	Reset();
sl@0: 	CFbsBitmap::InternalizeL(aStream);
sl@0: 	User::LeaveIfError(createWsBitmap(KErrNone));
sl@0: 	}
sl@0: