/*

* Copyright (c) 2002-2009 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 <AknUtils.h>

#include <AknsUtils.h>

#include <AknIconUtils.h>

#include <bautils.h>

#include "AknSmileyImage.h"

const TInt KFrameMaxInterval = 3*1000*1000; // 3s

const TInt KFrameMonitorStep = 5;           // monitor once per 5 call, for increase performence 

const TInt KMaxSameFrameRepeat = 6;         // 5 * 6, animation whose frame keep the same for 6 times call back, it will be stopped

#define DELZ(ptr) {delete (ptr); (ptr)=NULL;}

///////////////////////////////////////////////////////////////////////////////////////////////

// BmpUtils

///////////////////////////////////////////////////////////////////////////////////////////////

class BmpUtils

    {

public:

    static void CopyBitmpL(CFbsBitmap* aDesBmp, const CFbsBitmap* aSrcBmp);

    static TBool BitmpIsSame(const CFbsBitmap* aDesBmp, const CFbsBitmap* aSrcBmp);

    };

void BmpUtils::CopyBitmpL(CFbsBitmap* aDesBmp, const CFbsBitmap* aSrcBmp)

    {

    if(!aDesBmp || !aSrcBmp) return;

    TSize size(aSrcBmp->SizeInPixels());

    if(aDesBmp->SizeInPixels() != size)

        {

        aDesBmp->Reset();

        aDesBmp->Create(size, aSrcBmp->DisplayMode());

        }

    CFbsBitmapDevice* device = CFbsBitmapDevice::NewL(aDesBmp);

    CleanupStack::PushL(device);

    CFbsBitGc* gc = NULL;

    User::LeaveIfError(device->CreateContext(gc));

    CleanupStack::PushL(gc);

    gc->BitBlt(TPoint(), aSrcBmp);

    CleanupStack::PopAndDestroy(2);

    }

TBool BmpUtils::BitmpIsSame(const CFbsBitmap* aDesBmp, const CFbsBitmap* aSrcBmp)

    {

    if(!aDesBmp || !aSrcBmp) return EFalse;

    if(aDesBmp->SizeInPixels() == aSrcBmp->SizeInPixels())

        {

        TSize size(aSrcBmp->SizeInPixels());

        TInt scanLineLength = CFbsBitmap::ScanLineLength(size.iWidth, aSrcBmp->DisplayMode());

        TInt length = scanLineLength*size.iHeight;

        aDesBmp->BeginDataAccess();

        aSrcBmp->BeginDataAccess();

        TInt result = Mem::Compare((TUint8*)aDesBmp->DataAddress(), length, (TUint8*)aSrcBmp->DataAddress(), length);

        aSrcBmp->EndDataAccess(ETrue);

        aDesBmp->EndDataAccess(ETrue);

        if(result == KErrNone) return ETrue;

        }

    return EFalse;

    }

///////////////////////////////////////////////////////////////////////////////////////////////

// SmileyUtils

///////////////////////////////////////////////////////////////////////////////////////////////

void SmileyUtils::GetCustomizableResPath(TDes& aResPath, const TDesC& aDefaultResPath)

    {

    aResPath = aDefaultResPath;

    aResPath[0] = 'c';

    if(!BaflUtils::FileExists(CCoeEnv::Static()->FsSession(), aResPath))

        {

        aResPath[0] = aDefaultResPath[0];

        }

    };

///////////////////////////////////////////////////////////////////////////////////////////////

// CSmileyImage

///////////////////////////////////////////////////////////////////////////////////////////////

CSmileyImage* CSmileyImage::NewL(const TAknsItemID& aSkinImage, TInt aPkgImage, TBool aIsAnimation, MSmileyImageObserver* aObserver)

    {

    CSmileyImage* self = new (ELeave) CSmileyImage(aSkinImage, aPkgImage, aIsAnimation, aObserver);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(); // self;

    return self;

    }

void CSmileyImage::ConstructL()

    {

    iFrameSnap = new (ELeave) CFbsBitmap;

    iAsynchronousTaskTimer = CPeriodic::NewL(CActive::EPriorityStandard);

    }

CSmileyImage::CSmileyImage(const TAknsItemID& aSkinImage, TInt aPkgImage, TBool aIsAnimation, MSmileyImageObserver* aObserver) : 

iImageMifPkgItemId(aPkgImage), 

iIsAnimation(aIsAnimation), 

iImageObserver(aObserver)

    {

    iImageSkinItemId.Set(aSkinImage);

    }

CSmileyImage::~CSmileyImage()

    {

    DoRelease();

    DELZ(iFrameSnap);

    DELZ(iAsynchronousTaskTimer);

    }

void CSmileyImage::LoadL(TInt aRepeat, TInt aDelay)

    {

    iRepeatCount = aRepeat;

    if(aDelay > 0)

        {

        StartLoadAsynchronousL(aDelay);

        }

    else

        {

        DoLoadL();

        }

    }

void CSmileyImage::Release()

    {

    DoRelease();

    }

void CSmileyImage::SetSize(const TSize& aSize)

    {

    if(iSize != aSize)

        {

        iSize = aSize;

        if(iFrame)

            {

            AknIconUtils::SetSize(iFrame, aSize);

            }

        }

    }

const TSize& CSmileyImage::Size() const

    {

    return iSize;

    }

TBool CSmileyImage::ReadyToDraw() const

    {

    return iReadyToDraw;

    }

const CFbsBitmap* CSmileyImage::Image() const

    {

    return iFrame;

    }

const CFbsBitmap* CSmileyImage::Mask() const

    {

    return iFrameMask;

    }

void CSmileyImage::BitmapChanged(CFbsBitmap* aBitmap)

    {

    iReadyToDraw = ETrue; // animation is ready

    if(iImageObserver) iImageObserver->BitmapChanged(this, aBitmap);

    TRAP_IGNORE(MonitorAnimationEndedL());

    }

void CSmileyImage::MonitorAnimationEndedL()

    {

    // for animation doesn't call back

    StopAnimationAsynchronousL(KFrameMaxInterval);

    // for reduce the times of animation monitor

    iFrameCounter++;

    if(iFrameCounter % KFrameMonitorStep) return;

    // for not call back any more

    StopAnimationAsynchronousL(KFrameMaxInterval);

    // monitor the end of animation clip, replay or stop animation if ended

    if(BmpUtils::BitmpIsSame(iFrameSnap, iFrame))

        {

        iSameFrameCounter++;

        if(iSameFrameCounter > KMaxSameFrameRepeat)

            {

            StopAnimationAsynchronousL(); // can not stop animation synchronously

            }

        }

    else

        {

        iSameFrameCounter = 0;

        BmpUtils::CopyBitmpL(iFrameSnap, iFrame);

        }

    }

void CSmileyImage::DoLoadL()

    {

    StopAsynchronousTaskTimer();

    if(iFrame) return;

    TFileName smileyMifName;

    SmileyUtils::GetCustomizableResPath(smileyMifName, KSmileyMif);

    if(iImageSkinItemId.iMinor > 0)

        {

        MAknsSkinInstance* skin = AknsUtils::SkinInstance();

        }

    else

        {

        }

    if(iIsAnimation) // the first frame of animation svg is blank without correct content

        {

        iReadyToDraw = EFalse;

        AknIconUtils::SetObserver(iFrame, this);

        StopAnimationAsynchronousL(KFrameMaxInterval); // monitor for no callback

        }

    else // the first frame of static svg has correct content

        {

        iReadyToDraw = ETrue;

        if(iImageObserver) iImageObserver->BitmapChanged(this, iFrame);

        }

    AknIconUtils::SetSize(iFrame, iSize);

    }

void CSmileyImage::DoRelease()

    {

    StopAsynchronousTaskTimer();

    if(!iFrame) return;

    DELZ(iFrame);

    DELZ(iFrameMask);

    iFrameSnap->Reset();

    iReadyToDraw = EFalse;

    }

void CSmileyImage::DoHandleEndedL()

    {

    DoRelease();

    if(iRepeatCount != 0)

        {

        iRepeatCount--;

        DoLoadL();

        }

    }

void CSmileyImage::StopAsynchronousTaskTimer()

    {

    iAsynchronousTaskTimer->Cancel();

    }

void CSmileyImage::StartLoadAsynchronousL(TInt aDelayMicroSeconds)

    {

    StopAsynchronousTaskTimer();

    iAsynchronousTaskTimer->Start(aDelayMicroSeconds, 1, TCallBack(StartLoadAsynchronousCallBackL,this));

    }

TInt CSmileyImage::StartLoadAsynchronousCallBackL(TAny* aPtr)

    {

    CSmileyImage* self = (CSmileyImage*)aPtr;

    self->StopAsynchronousTaskTimer();

    self->DoLoadL();

    return KErrNone;

    }

void CSmileyImage::StopAnimationAsynchronousL(TInt aDelayMicroSeconds)

    {

    StopAsynchronousTaskTimer();

    iAsynchronousTaskTimer->Start(aDelayMicroSeconds, 1, TCallBack(StopAnimationAsynchronousCallBackL,this));

    }

TInt CSmileyImage::StopAnimationAsynchronousCallBackL(TAny* aPtr)

    {

    CSmileyImage* self = (CSmileyImage*)aPtr;

    self->StopAsynchronousTaskTimer();

    self->DoHandleEndedL();

    return KErrNone;

    }

// end of file