windowing/windowserver/nonnga/SERVER/BITMAP.CPP
changeset 0 5d03bc08d59c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nonnga/SERVER/BITMAP.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,79 @@
+// Copyright (c) 1996-2009 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:
+// Window server side bitmap class
+// All this class does is actually give the window server ownership of the bitmap
+// 
+//
+
+#include "ScrDev.H"
+
+DWsBitmap::DWsBitmap(CWsClient *aOwner) : CWsObject(aOwner, WS_HANDLE_BITMAP)
+	{
+	}
+
+DWsBitmap::~DWsBitmap()
+	{
+	delete iFbsBitmap;
+	}
+
+void DWsBitmap::ConstructL(const TWsClCmdCreateBitmap &aParams)
+	{
+	NewObjL();
+	iFbsBitmap=new(ELeave) CFbsBitmap();
+	TInt ret = iFbsBitmap->Duplicate(aParams.handle);
+	if(ret == KErrNoMemory)
+		{
+		User::Leave(ret);
+		}
+	if (ret !=KErrNone)
+		OwnerPanic(EWservPanicBitmap);
+	IncRefCount();
+	}
+
+void DWsBitmap::CommandL(TInt aOpcode, const TAny *)
+	{
+	switch(aOpcode)
+		{
+		case EWsBitmapOpFree:
+			iFlags |= EWsBitmapClientObjectFreed;
+			DecRefCount();
+			break;
+		default:
+			OwnerPanic(EWservPanicOpcode);
+			break;
+		}
+	}
+
+/*
+DWsBitmap is a reference couting object so we cannot simply close the object as somebody else may have a reference to it
+*/
+void DWsBitmap::CloseObject()
+	{
+	RemoveFromIndex();
+	if (!(iFlags & EWsBitmapClientObjectFreed))
+		{
+		DecRefCount();
+		}
+	}
+
+void DWsBitmap::IncRefCount()
+	{
+	iRefCount++;
+	}
+
+void DWsBitmap::DecRefCount()
+	{
+	if (--iRefCount <= 0)
+		delete this;
+	}