/*

* 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:   

*

*/

#include "HuiFxFilter.h"

#include "HuiFxScalarParameter.h"

#include "HuiFxColorParameter.h"

#include "HuiFxParameterManager.h"

#include "HuiFxConstants.h"

EXPORT_C void CHuiFxFilter::ConstructL()

    {

#ifdef HUIFX_TRACE    

    RDebug::Print(_L("CHuiFxFilter::ConstructL - 0x%x "), this);

#endif

    iMargin = TSize(0, 0);

    iIsFreeForm = EFalse;

    iOpacity = 1.0f;

    iParameterChanged = EFalse;

    iFirstParameterCheck = ETrue;

    iFrameCount = ETrue;

    iParameterManager = CHuiFxParameterManager::NewL();

    RegisterParameterL(KLitOpacityParameter, &iOpacity);

    }

EXPORT_C void CHuiFxFilter::CopyFromL(const CHuiFxFilter *aOldFilter)

    {

    iMargin = aOldFilter->iMargin;

    iIsFreeForm = aOldFilter->iIsFreeForm;

    iOpacity = aOldFilter->iOpacity;

    iParameterChanged = aOldFilter->iParameterChanged;

    iFirstParameterCheck = aOldFilter->iFirstParameterCheck;

    iFrameCount = aOldFilter->iFrameCount;

    iParameterManager = aOldFilter->iParameterManager->CloneL();

    CopyParameterL(KLitOpacityParameter, &iOpacity, aOldFilter);

    }

EXPORT_C CHuiFxFilter::~CHuiFxFilter()

    {

    delete iParameterManager;

    iParameterManager = NULL;

#ifdef HUIFX_TRACE    

    RDebug::Print(_L("CHuiFxFilter::~CHuiFxFilter - 0x%x "), this);

#endif

    }

EXPORT_C TBool CHuiFxFilter::Changed() const

    {

    return iParameterManager->HasAnimatedParameters();

    }

EXPORT_C TBool CHuiFxFilter::PrepareDrawL(CHuiFxEngine& aEngine)

    {

#ifdef HUIFX_TRACE    

    RDebug::Print(_L("CHuiFxFilter::PrepareDrawL - 0x%x "), this);

#endif

    iFrameCount++;

    iParameterChanged = iParameterManager->Update(aEngine, VisualRect());

    return ETrue;

    }

EXPORT_C void CHuiFxFilter::CalculateMargin(TMargins &aMargin) const

    {

    aMargin.iLeft = 0;

    aMargin.iRight = 0;

    aMargin.iTop = 0;

    aMargin.iBottom = 0;

    }

EXPORT_C void CHuiFxFilter::AdvanceTime(TReal32 aElapsedTime)

    {

    iParameterManager->AdvanceTime(aElapsedTime);

    }

EXPORT_C void CHuiFxFilter::SetMargin(const TSize& aMargin)

    {

    iMargin = aMargin;

    }

EXPORT_C const TSize& CHuiFxFilter::Margin() const

    {

    return iMargin;

    }

EXPORT_C const TMargins &CHuiFxFilter::Margin2() const

    {

    CalculateMargin(iMargin2);

    return iMargin2;

    }

EXPORT_C void CHuiFxFilter::SetFreeForm(TBool aEnable)

    {

    iIsFreeForm = aEnable;

    }

EXPORT_C TBool CHuiFxFilter::IsFreeForm() const

    {

    return iIsFreeForm;

    }

EXPORT_C MHuiFxParameter* CHuiFxFilter::Parameter(const TDesC& aName)

    {

    return iParameterManager->Parameter(aName);

    }

EXPORT_C void CHuiFxFilter::RegisterParameterL(const TDesC& aName, TReal32* aValue)

    {

    iParameterManager->RegisterParameterL(aName, aValue);

    }

EXPORT_C void CHuiFxFilter::RegisterParameterL(const TDesC& aName, TRgb* aValue)

    {

    iParameterManager->RegisterParameterL(aName, aValue);

    }

EXPORT_C void CHuiFxFilter::CopyParameterL(const TDesC& aName, TRgb* aValue, const CHuiFxFilter *aOldFilter)

    {

    iParameterManager->CopyParameterL(aName, aValue, aOldFilter->iParameterManager);

    }

EXPORT_C void CHuiFxFilter::CopyParameterL(const TDesC& aName, TReal32* aValue, const CHuiFxFilter *aOldFilter)

    {

    iParameterManager->CopyParameterL(aName, aValue, aOldFilter->iParameterManager);    

    }

EXPORT_C TBool CHuiFxFilter::ParameterChanged()

    {

    if(iFirstParameterCheck)

        {

        iFirstParameterCheck = EFalse;

        return ETrue;

        }

    else

        {

        return iParameterChanged || (iFrameCount <= 1);

        }

    }

EXPORT_C void CHuiFxFilter::SetVisualRect(const TRect& aRect)

    {

#ifdef HUIFX_TRACE    

    RDebug::Print(_L("CHuiFxFilter::SetVisualRect - 0x%x (%d,%d,%d,%d))"), this, aRect.iTl.iX, aRect.iTl.iY, aRect.iBr.iX, aRect.iBr.iY);

#endif

    iVisualRect = aRect;

    }

EXPORT_C const TRect& CHuiFxFilter::VisualRect() const

    {

    return iVisualRect;

    }