--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiCurvePathLayout.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,137 @@
+/*
+* Copyright (c) 2006-2007 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:   Definition for CHuiCurvePathLayout. Combines a layout visual 
+*                and a curve path. The path is rescaled as the layout's size changes.
+*
+*/
+
+
+
+#ifndef __HUICURVEPATHLAYOUT_H__
+#define __HUICURVEPATHLAYOUT_H__
+
+
+#include <e32base.h>
+#include <uiacceltk/HuiCurvePath.h>
+#include <uiacceltk/HuiLayout.h>
+#include <uiacceltk/HuiTimedValue.h>
+
+
+/* Forward declarations */
+class CHuiEnv;
+class CHuiLayout;
+
+
+/**
+ * CHuiCurvePathLayout combines a layout visual and a curve path instance. 
+ * Using a curve path layout it is easy to create a curve path that scales
+ * to the size of the layout.
+ *
+ * The curve path layout itself can be used as a mapping function, because it 
+ * implements the MHuiMappingFunction interface. 
+ 
+ * To support legacy applications, if the metrics unit type is EHuiUnitPixel, 
+ * the curve path owned by the layout is scaled to the size of the layout visual.
+ * The path itself should be defined using relative coordinates in the range 0...1000.
+ *
+ * For example, to make the positions of child visuals (or any other visuals)
+ * follow the layout's curve path, call the THuiTimedValue::SetFunction() method
+ * for the position of the visual(s):
+ *
+ * <pre>iChild->Pos().SetFunction(iCurvePathLayout);</pre>
+ */
+NONSHARABLE_CLASS(CHuiCurvePathLayout): public CHuiLayout, public MHuiMappingFunction
+    {
+public:
+
+    /* Constructors and destructor. */
+
+    /**
+     * Construct a new curve path layout and give its ownership to a control.
+     *
+     * @param aOwnerControl  Owner control.
+     * @param aParentLayout  Parent layout for the new curve path layout.
+     */
+    IMPORT_C static CHuiCurvePathLayout* AddNewL(CHuiControl& aOwnerControl, 
+                                                 CHuiLayout* aParentLayout = 0);
+
+    /**
+     * Constructor.
+     *
+     * @param aOwner  Owner control.
+     */
+    CHuiCurvePathLayout(MHuiVisualOwner& aOwner);
+
+    /**
+     * Second-phase constructor.
+     */
+    void ConstructL();
+
+    /**
+     * Destructor.
+     */
+    ~CHuiCurvePathLayout();
+
+
+    /* Methods. */
+
+    /**
+     * Returns the curve path instance of the layout.
+     *
+     * @return Curve path.
+     */
+    IMPORT_C CHuiCurvePath& CurvePath();
+    
+    /**
+     * Overridden version of size changing updates the layout of child visuals.
+     *
+     * @param aSize  New size for the layout.
+     * @param aTransitionTime  Time for the transition to new size to take 
+     *               place.
+     */
+    void SetSize(const THuiRealSize& aSize, TInt aTransitionTime=0);
+    
+    TBool ChildSize(TInt aOrdinal, TSize& aSize);
+    
+    TBool ChildPos(TInt aOrdinal, TPoint& aPos);
+
+    TInt ChildRect(TInt aOrdinal, THuiRealRect& aRect);
+    
+    void GetClassName(TDes& aName) const
+        {
+        aName = _L("CHuiCurvePathLayout");
+        }
+    
+    
+    /* Mapping function impl. */
+    
+    TReal32 MapValue(TReal32 aValue, TInt aMode) const __SOFTFP;
+    
+    TBool MappingFunctionChanged() const;
+    
+    void MappingFunctionClearChanged();
+    
+private:    
+
+    /* Private types. */
+    
+
+private:
+
+    CHuiCurvePath* iPath;
+    
+    };
+
+
+#endif  // __HUICURVEPATHLAYOUT_H__