--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/coretoolkit/inc/HuiFxFilter.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,80 @@
+/*
+* 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:   
+*
+*/
+
+
+
+#ifndef HUIFXFILTER_H_
+#define HUIFXFILTER_H_
+
+class CHuiFxParameterManager;
+
+#include "HuiFxEngine.h"
+#include "HuiFxRenderbuffer.h"
+#include "HuiFxParameter.h"
+#include "HuiFxConstants.h"
+#include "HuiFxParameterCollection.h"
+
+class CHuiFxFilter: public CBase, public MHuiFxParameterCollection
+    {
+public:
+    IMPORT_C virtual ~CHuiFxFilter();
+    IMPORT_C virtual TBool PrepareDrawL(CHuiFxEngine& aEngine);
+    IMPORT_C virtual TBool Draw(CHuiFxEngine& aEngine, CHuiGc& aGc, CHuiFxRenderbuffer& aTarget, CHuiFxRenderbuffer& aSource,
+                               const TRect& aTargetRect, const TRect& aSourceRect) = 0;
+    // CalculateMargin will be called before PrepareDrawL(), so 
+    // parameters are not ready, so margin calculation need to use 
+    // either previous frame parameter values, or should be independent 
+    // of parameters. Should do nothing else than set value for aMargin.
+    IMPORT_C virtual void CalculateMargin(TMargins &aMargin) const;
+
+    // TODO: which of these are really needed?
+    IMPORT_C void SetMargin(const TSize& aMargin);
+    IMPORT_C const TSize& Margin() const;
+    IMPORT_C const TMargins &Margin2() const;
+    IMPORT_C void SetFreeForm(TBool aEnable);
+    IMPORT_C TBool IsFreeForm() const;
+    IMPORT_C void AdvanceTime(TReal32 aElapsedTime);
+    IMPORT_C TBool Changed() const;
+    IMPORT_C void SetVisualRect(const TRect& aVisualRect);
+    IMPORT_C const TRect& VisualRect() const;
+
+    IMPORT_C MHuiFxParameter* Parameter(const TDesC& aName);
+    IMPORT_C virtual CHuiFxFilter *CloneL() const=0;
+
+protected:
+    IMPORT_C void ConstructL();
+    IMPORT_C void RegisterParameterL(const TDesC& aName, TRgb* aValue);
+    IMPORT_C void RegisterParameterL(const TDesC& aName, TReal32* aValue);
+    IMPORT_C void CopyParameterL(const TDesC& aName, TRgb* aValue, const CHuiFxFilter *aOldFilter);
+    IMPORT_C void CopyParameterL(const TDesC& aName, TReal32* aValue, const CHuiFxFilter *aOldFilter);
+    IMPORT_C void CopyFromL(const CHuiFxFilter *aOldFilter); // copies all baseclass CHuiFxFilter parameters
+    IMPORT_C TBool ParameterChanged();
+    
+    TReal32 iOpacity;
+
+private:
+    CHuiFxParameterManager* iParameterManager;
+    TSize               iMargin; // not used
+    TBool               iIsFreeForm;
+    TBool               iParameterChanged;
+    TBool               iFirstParameterCheck;
+    TBool               iFrameCount;
+    TRect               iVisualRect;
+    mutable TMargins            iMargin2;
+    };
+
+#endif /*HUIFXFILTER_H_*/