--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/cameracontroller/camflagutility.inl	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,77 @@
+/*
+* Copyright (c) 2007 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:  Inline utility methods for flag variables
+*
+*/
+
+
+#ifndef CAM_FLAGUTILITY_INL
+#define CAM_FLAGUTILITY_INL
+
+
+// ===========================================================================
+namespace NCamCameraController
+  {
+  inline TBool IsFlagOn( TUint aState, TUint aFlag )
+    {
+    return (aState & aFlag);
+    };
+
+  inline TBool IsFlagOff( TUint aState, TUint aFlag )
+    {
+    return !IsFlagOn( aState, aFlag );
+    };
+
+  inline void CheckFlagOnL( TUint aState, TUint aFlag, TInt aLeave )
+    {
+    if( IsFlagOff( aState, aFlag ) )
+      {
+      User::Leave( aLeave );
+      }
+    }
+  inline void CheckFlagOffL( TUint aState, TUint aFlag, TInt aLeave )
+    {
+    if( IsFlagOn( aState , aFlag ) )
+      {
+      User::Leave( aLeave );
+      }
+    }
+
+  inline void CheckEqualsL( TUint aState, TUint aCheck, TInt aLeave )
+    {
+    if( aState != aCheck )
+      {
+      User::Leave( aLeave );
+      }
+    }
+  
+  // SetFlags and ClearFlags defined to aid readability.
+  // "ClearFlags( flags, someflags )" should be more readable than "flags &= ~someFlags".
+  // Also using these methods is less error prone. 
+  // Consider "flags &= ~someFlags" changed to "flags &= someFlags" by mistake..
+  inline void SetFlags( TUint& aOldFlags, TUint aSetFlags )
+    {
+    aOldFlags |= aSetFlags;
+    }
+  
+  inline void ClearFlags( TUint& aOldFlags, TUint aClearFlags )
+    {
+    aOldFlags &= ~aClearFlags;
+    }
+  }
+
+// ===========================================================================
+#endif // CAM_FLAGUTILITY_INL
+
+// end of file