graphicsdeviceinterface/directgdiadaptation/cmnsrc/directgdiimageref.cpp
changeset 0 5d03bc08d59c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/directgdiadaptation/cmnsrc/directgdiimageref.cpp	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,67 @@
+// Copyright (c) 2007-2009 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 "directgdiimageref.h"
+#include <graphics/sgresourceinternal.h>
+
+CDirectGdiImageRef::CDirectGdiImageRef()
+	{
+	}
+
+/**
+Second phase construction. If the object has not been opened before,
+the passed RSgImage handle is shared with the member RSgImage and the size of the 
+shared RSgImage is stored.
+
+@return KErrNone if successful, otherwise an error from RSgDrawable::Open() or 
+RSgImage::GetInfo()
+ */
+TInt CDirectGdiImageRef::Construct(const RSgImage& aSgImage)
+	{		
+	TInt err = KErrNone;	
+	
+	// Share the passed RSgImage handle with our own RSgImage
+	err = iSgImage.Open(aSgImage.Id(), ESgDoNotRestrictUsage);
+	
+	if (err == KErrNone)
+		{
+		// Save our image size, only need to do this the first time we are created
+		TSgImageInfo info;
+		err = iSgImage.GetInfo(info);
+		if (err == KErrNone)
+			{
+			iImageSize = info.iSizeInPixels;
+			iImagePixelFormat = info.iPixelFormat;
+			iSgImageOpen = ETrue;
+			}
+		else
+			{
+			iSgImage.Close();
+			}
+		}
+	
+	return err;
+	}
+
+/**
+Destructor, close the RSgImage being held open if it had been opened it successfully.
+ */
+CDirectGdiImageRef::~CDirectGdiImageRef()
+	{
+	if (iSgImageOpen)
+		{
+		iSgImage.Close();
+		}
+	}