--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/menufwui/mmwidgets/src/mmfloatingitem.cpp	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,197 @@
+/*
+* 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:  floating item
+*
+*/
+
+#include <e32math.h>
+#include <eiklbv.h>
+#include "mmfloatingitem.h"
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+TMmFloatingItem::TMmFloatingItem( TInt aDrawnIndex, TPoint aStartPosition,
+        TMmFloatingItemType aType, TInt aAnimationFrames, CListBoxView* aView ) 
+    {
+    iView = aView;
+    iSizeStep = 0;
+    iZoomRatio = 1;
+    iManualDelete = EFalse;
+    
+    if ( iView )
+        {
+        // item position is relative
+        iItemPosition = aStartPosition - iView->ItemPos( 0 );
+        }
+    else
+        {
+        // item position is absolute
+        iItemPosition = aStartPosition;
+        }
+
+    iDrawnItemIndex = aDrawnIndex;
+    iType = aType;
+    iFrames = aAnimationFrames;
+    iFrameCounter = 0;
+    CalculateSteps(TPoint(0,0));
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+void TMmFloatingItem::SetPositionStep( TPoint aDiffetenceVector  )
+     {
+     ASSERT( iFrames );
+     iFrameCounter = 0;
+     CalculateSteps( aDiffetenceVector );
+     }
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+void TMmFloatingItem::CalculateSteps(TPoint aVector) 
+    {
+    iPositionStep.Reset();
+
+    TReal x = aVector.iX;
+    TReal y = aVector.iY;
+    
+    TReal sx = 0.0;
+    TReal sy = 0.0;
+    
+    for( TInt i = 0; i < iFrames; i++ )
+    	{
+    	TReal sin;
+    	Math::Sin( sin, (i+1) * KPi/iFrames + KPi * 3./2.  );
+    	TReal xx = x * (0.5*( sin + 1.0 ) ) - sx;
+    	TReal yy = y * (0.5*( sin + 1.0 ) ) - sy;
+    	
+    	sx += xx;
+    	sy += yy;
+    	
+    	iPositionStep.At(i) = TPoint( xx, yy );
+    	}
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+void TMmFloatingItem::SetSizeStep( TReal aStartSize, TReal aFinalSize )
+    {
+    ASSERT( iFrames );
+    iFrameCounter = 0;
+    iZoomRatio = aStartSize;
+    iSizeStep = (aFinalSize - aStartSize) / iFrames;
+    }
+
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//   
+TBool TMmFloatingItem::MakeStep() 
+    {
+    TBool ret(EFalse);
+    
+    if(iFrameCounter >= iFrames && iManualDelete == EFalse)
+        {
+        InvalidateFloatingItem();
+        }
+    else if (iFrameCounter < iFrames)
+        {
+        iItemPosition += iPositionStep[iFrameCounter];
+        iZoomRatio += iSizeStep;
+        ret = Abs(iPositionStep[iFrameCounter].iX) > 0 
+			|| Abs(iPositionStep[iFrameCounter].iY > 0)
+			|| Abs(iSizeStep) > 0;
+		iFrameCounter++;
+        }
+    
+    return ret;
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+void TMmFloatingItem::SetManualDelete(TBool aManual)
+    {
+    iManualDelete = aManual;
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+TReal TMmFloatingItem::GetCurrentZoomRatio() const
+    {
+    return iZoomRatio;
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+// 
+TMmFloatingItemType TMmFloatingItem::GetFloatingItemType() const
+    {
+    return iType;
+    }
+
+TInt TMmFloatingItem::GetDrawnItemIndex() const
+    {
+    return iDrawnItemIndex;
+    }
+
+TPoint TMmFloatingItem::GetItemPosition() const
+    {
+    TPoint ret;
+    if ( iView )
+        {
+        // item position is relative
+        ret = iItemPosition + iView->ItemPos( 0 );
+        }
+    else
+        {
+        // item position is absolute
+        ret = iItemPosition;
+        }
+    return ret;
+    }
+
+void TMmFloatingItem::InvalidateFloatingItem()
+    {
+    iDrawnItemIndex = KErrNotFound;
+    }
+
+TBool TMmFloatingItem::IsFloatingItemValid() const
+    {
+    return GetDrawnItemIndex() != KErrNotFound 
+		&& iType != EPostDragRefreshItem 
+		&& iType != EPostHighlightChangeRefreshItem;
+    }
+
+TBool TMmFloatingItem::IsManualDelete()
+    {
+    return iManualDelete;
+    }
+
+TInt TMmFloatingItem::GetZoomingStatus()
+    {
+    return iSizeStep;
+    }
+// End of file