--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailcontacts/contactactionmenu/src/tfsccontactactionmenutimedvalue.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,218 @@
+/*
+* 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:  Implementation of the class TFscContactActionMenuTimedValue.
+*
+*/
+
+
+// INCUDES
+#include "emailtrace.h"
+#include "tfsccontactactionmenutimedvalue.h"
+
+// CONSTS
+const TReal KMilliSecondsInSecond = 1000.0;
+
+// ======== LOCAL FUNCTIONS ========
+
+// ======== MEMBER FUNCTIONS ========
+
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::TFscContactActionMenuTimedValue
+// ---------------------------------------------------------------------------
+//
+TFscContactActionMenuTimedValue::TFscContactActionMenuTimedValue(
+    TReal32 aInitialValue ) : iStartValue( aInitialValue )
+    {
+    FUNC_LOG;
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::TFscContactActionMenuTimedValue
+// ---------------------------------------------------------------------------
+//
+void TFscContactActionMenuTimedValue::Set( 
+    TReal32 aTargetValue, TInt aTimeMs )
+    {
+    FUNC_LOG;
+    if( aTimeMs <= 0 )
+        {
+        iInternalState &= ~EFlagInterpolating;
+        iInternalState |= EFlagChanged;
+        iStartValue = aTargetValue;
+        iTargetValue = aTargetValue;
+        return;
+        }
+        
+    if( iInternalState & EFlagInterpolating )
+        {
+        iStartValue = Now();
+        }
+    else
+        {
+        if( iStartValue == aTargetValue )
+            {
+            // This is the current value of the timed value, and it won't
+            // change, so we are already at the target.
+            return;
+            }
+        }        
+
+    // If the difference between the current value and the target value
+    // is insignificant, no interpolation is done (it would be subject
+    // to round-off problems).
+    const TReal32 KEpsilon = .0001;
+    TReal32 delta = aTargetValue - iStartValue;
+    if( Abs(delta) < KEpsilon )
+        {
+        iStartValue = aTargetValue;
+        iTargetValue = aTargetValue;
+        iInternalState &= ~EFlagInterpolating;
+        iInternalState |= EFlagChanged;
+        return;
+        }
+
+    iStartTime = Time();
+    
+    // Target time is an offset to the current time.
+    iEndTime = iStartTime + aTimeMs;
+    iTargetValue = aTargetValue;
+    iInternalState |= EFlagChanged | EFlagInterpolating;
+
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::SetWithSpeed
+// ---------------------------------------------------------------------------
+//
+ void TFscContactActionMenuTimedValue::SetWithSpeed( 
+    TReal32 aTargetValue, TInt aUnitsPerSecond )
+    {
+    FUNC_LOG;
+    TReal32 delta = Now() - aTargetValue;
+    if( delta == 0 || aUnitsPerSecond <= 0 )
+        {
+        // Already there.
+        Set( aTargetValue );
+        return;
+        }
+    
+    delta = Abs(delta);
+    Set( aTargetValue, ( TInt ) ( ( delta / aUnitsPerSecond ) * KMilliSecondsInSecond ) );
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::Now
+// ---------------------------------------------------------------------------
+//
+ TReal TFscContactActionMenuTimedValue::Now()
+    {
+    FUNC_LOG;
+    
+    if( ( iInternalState & EFlagInterpolating ) && iEndTime > iStartTime )
+        {
+        iInternalState |= EFlagChanged;
+        
+        TInt duration = iEndTime - iStartTime; // Convert from TInt64 -> TInt
+        TInt elapsed = Time() - iStartTime; // Convert from TInt64 -> TInt
+        
+        if( elapsed > duration )
+            {
+            // We have reached the destination.
+            iStartValue = iTargetValue;
+            iStartTime = iEndTime;
+            iInternalState &= ~EFlagInterpolating;
+            return iStartValue;
+            }
+        
+        const TInt fixt = FixDiv( elapsed, duration );
+        TReal32 t = FixToFloat( fixt );
+        TReal result = ( iStartValue * ( 1 - t ) + iTargetValue * t );
+        return result;
+        }
+    else
+        {
+        if( iInternalState & EFlagInterpolating )
+            {
+            iInternalState |= EFlagChanged;
+            iInternalState &= ~EFlagInterpolating;
+            }
+        return iStartValue;
+        }
+
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::Target
+// ---------------------------------------------------------------------------
+//
+TReal TFscContactActionMenuTimedValue::Target()
+    {
+    FUNC_LOG;
+    return iTargetValue;
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::Interpolating
+// ---------------------------------------------------------------------------
+//
+TBool TFscContactActionMenuTimedValue::Interpolating()
+    {
+    FUNC_LOG;
+    return ( ( iInternalState & EFlagInterpolating ) != 0 );
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::FixDiv
+// ---------------------------------------------------------------------------
+//
+TInt TFscContactActionMenuTimedValue::FixDiv( TInt aVal1, TInt aVal2 )
+    {
+    FUNC_LOG;
+    TUint64 temp = aVal1;
+    temp <<= 16;
+    TInt result = 0;
+    if ( aVal2 != 0 )
+        {
+        result = TInt( temp / aVal2 );
+        }
+    return result;
+    };
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::FixToFloat
+// ---------------------------------------------------------------------------
+//
+TReal32 TFscContactActionMenuTimedValue::FixToFloat( TInt aVal )
+    {
+    FUNC_LOG;
+    TReal result = TReal32( ( TReal32( aVal ) ) / 65536.0f );
+    return result;
+    }
+
+// ---------------------------------------------------------------------------
+// TFscContactActionMenuTimedValue::Time
+// ---------------------------------------------------------------------------
+//
+TInt64 TFscContactActionMenuTimedValue::Time() const
+    {
+    FUNC_LOG;
+    TTime curTime;
+    curTime.UniversalTime();
+    TTimeIntervalMicroSeconds interval = 
+        curTime.MicroSecondsFrom( TTime( 0 ) );
+        
+    return interval.Int64() / KMilliSecondsInSecond;
+    }
+