--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mulwidgets/gesturehelper/src/utils.cpp	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 2008 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:  Gesture recognition utilities
+*
+*/
+
+#include "utils.h"
+
+#include <coemain.h> // for CCoeEnv
+#include <eikappui.h>  // for CEikAppUi
+
+#include "gesturedefs.h"
+
+namespace GestureHelper
+    {
+    /** @return the longer edge of the size */
+    inline TInt LongerEdge( const TSize& aSize ) 
+        {
+        return Max( aSize.iHeight, aSize.iWidth );
+        }
+    
+    // for documentation, see header file
+    TRect ToleranceRect( const TPoint& aCenterPoint ) 
+        {
+        TSize screenSize = static_cast<CEikAppUi*>( CCoeEnv::Static()->AppUi() )
+            ->ApplicationRect().Size(); 
+        // multiplication has to be done first, to avoid rounding integer to 0 with division
+        int toleranceLength = ( KGestureTolerancePercent * LongerEdge( screenSize ) ) / 100; 
+        TRect toleranceRect( aCenterPoint, TSize() );
+        // grow by the tolerance length, while keeping the center point
+        toleranceRect.Shrink( -toleranceLength, -toleranceLength );
+        return toleranceRect;
+        }
+ 
+     // for documentation, see header file
+    TRect ToleranceRect( const TPoint& aCenterPoint, MGestureEvent::TAxis aRelevantAxis ) 
+        {
+        TRect toleranceRect = ToleranceRect(aCenterPoint);
+
+		TSize screenSize = static_cast<CEikAppUi*>( CCoeEnv::Static()->AppUi() )
+            ->ApplicationRect().Size();
+            
+		if(aRelevantAxis == MGestureEvent::EAxisHorizontal)
+			{
+			toleranceRect.iTl.iY = 0;
+        	toleranceRect.iBr.iY = screenSize.iHeight;	
+			}
+		else if(aRelevantAxis == MGestureEvent::EAxisVertical)
+			{
+			toleranceRect.iTl.iX = 0;
+        	toleranceRect.iBr.iX = screenSize.iWidth;	
+			}
+		else // EAxisBoth
+			{
+			// nothing to be done	
+			}                   
+
+        return toleranceRect;
+        }
+           
+    } // namespace GestureHelper