--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiMappingFunctions.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,203 @@
+/*
+* 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:   General-purpose mapping functions.
+*
+*/
+
+
+ 
+#ifndef __HUIMAPPINGFUNCTIONS_H__
+#define __HUIMAPPINGFUNCTIONS_H__
+
+
+#include <uiacceltk/HuiTimedValue.h>
+
+/**
+* The parameters of each mapping function are declared and 
+* accessed as public for convenience.  To preserve binary 
+* compatiblity, avoid making changes to these classes.
+*/
+
+/**
+ * Constant value mapping function. 
+ *
+ * Does not implement change flags, which means that if iValue is changed 
+ * while the mapping function is in use, timed values will not notify the 
+ * change.
+ */
+class THuiConstantMappingFunction : public MHuiMappingFunction
+    {
+public:
+
+    /**
+     * Constructor.
+     */
+    IMPORT_C THuiConstantMappingFunction(TReal32 aValue = 0.0) __SOFTFP;
+    
+    /* implements MHuiMappingFunction */
+    IMPORT_C TReal32 MapValue(TReal32 aValue, TInt aComponent) const __SOFTFP;
+    
+
+public:
+
+    /* Parameters. */
+    
+    TReal32 iValue;
+    
+    };
+
+
+/**
+ * Linear mapping function.
+ *
+ * Does not implement change flags, which means that if iFactor or iOffset 
+ * is changed while the mapping function is in use, timed values will 
+ * not notify the change.
+ */
+class THuiLinearMappingFunction : public MHuiMappingFunction
+    {
+public:
+
+    /**
+     * Constructor.
+     */
+    IMPORT_C THuiLinearMappingFunction(TReal32 aFactor = 1.0, TReal32 aOffset = 0.0) __SOFTFP;
+    
+    /* implements MHuiMappingFunction */
+    IMPORT_C TReal32 MapValue(TReal32 aValue, TInt aComponent) const __SOFTFP;
+        
+    
+public:
+
+    /* Parameters. */
+    
+    /** Multiply by a factor. */
+    TReal32 iFactor;
+    
+    /** Apply offset after multiplication. */
+    TReal32 iOffset;    
+    
+    };
+
+
+/**
+ * Sine mapping function.
+ *
+ * Does not implement change flags, which means that if iFactor or iOffset 
+ * is changed while the mapping function is in use, timed values will 
+ * not notify the change.
+ */
+class THuiSineMappingFunction : public MHuiMappingFunction
+    {
+public:    
+
+    /**
+     * Constructor.
+     */
+    IMPORT_C THuiSineMappingFunction(TReal32 aFactor = 1.0, TReal32 aOffset = 0.0) __SOFTFP;
+
+    /* implements MHuiMappingFunction */
+    IMPORT_C TReal32 MapValue(TReal32 aValue, TInt aComponent) const __SOFTFP;
+
+
+public:
+
+    /* Parameters. */
+    
+    TReal32 iFactor;
+    
+    TReal32 iOffset;            
+    
+    };
+    
+    
+/**
+ * Cosine mapping function.
+ * 
+ * Does not implement change flags, which means that if iFactor or iOffset 
+ * is changed while the mapping function is in use, timed values will 
+ * not notify the change.
+ */    
+class THuiCosineMappingFunction : public MHuiMappingFunction
+    {
+public:
+    
+    /**
+     * Constructor.
+     */
+    IMPORT_C THuiCosineMappingFunction(TReal32 aFactor = 1.0, TReal32 aOffset = 0.0) __SOFTFP;
+
+    /* implements MHuiMappingFunction */
+    IMPORT_C TReal32 MapValue(TReal32 aValue, TInt aComponent) const __SOFTFP;
+    
+
+public:    
+        
+    /* Parameters. */
+    
+    TReal32 iFactor;
+    
+    TReal32 iOffset;            
+        
+    };
+    
+    
+/**
+ * Weighted average function between two other mapping functions.
+ * By default calculates the average of the two functions.
+ */    
+class THuiAverageMappingFunction : public MHuiMappingFunction
+    {
+public:
+    
+    /**
+     * Constructor. 
+     *
+     * @param aFunc1  Function 1.
+     * @param aFunc2  Function 2.
+     */
+    IMPORT_C THuiAverageMappingFunction(MHuiMappingFunction* aFunc1 = 0, MHuiMappingFunction* aFunc2 = 0);
+
+
+    /* Implements MHuiMappingFunction. */
+    
+    IMPORT_C TReal32 MapValue(TReal32 aValue, TInt aComponent) const __SOFTFP;
+    
+    IMPORT_C TBool MappingFunctionChanged() const;
+    
+    IMPORT_C void MappingFunctionClearChanged();
+
+
+public:
+
+    /* Parameters. */
+    
+    /** First mapping function to average with. */
+    MHuiMappingFunction* iFunc1;
+    
+    /** Second mapping function to average with. */    
+    MHuiMappingFunction* iFunc2;
+            
+    /** Defaults to 0.5. Applied to the sum of the functions 1 and 2. */            
+    THuiTimedValue iFactor;                
+            
+    /** Weight. 0.0 means function 2 does not contribute to the result, 1.0 
+        means that function 1 does not contribute to the result. The default
+        is 0.5, which means both functions contribute equally. */
+    THuiTimedValue iWeight;        
+            
+    };
+
+
+#endif