// Copyright (c) 2008-2009 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:

//

/**

 @file

 @internalComponent

*/

#include "mmdirectviewfinder.h"

#include <graphics/surfaceconfiguration.h>

#include "w32std.h"

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include <ecamdef.h>

#endif

CMMDirectViewFinder* CMMDirectViewFinder::NewL(CMMCameraClientSession& aOwner)

	{

	CMMDirectViewFinder* self = new (ELeave) CMMDirectViewFinder(aOwner);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

void CMMDirectViewFinder::ConstructL()

	{

	}

CMMDirectViewFinder::CMMDirectViewFinder(CMMCameraClientSession& aOwner)

	: iOwner(aOwner), iDirectViewFinderObserver(NULL), iPrepareCompleted(EFalse)

	{

	iReferenceCount++;

	}

CMMDirectViewFinder::~CMMDirectViewFinder()

	{

	}

void CMMDirectViewFinder::Release(CCamera::CCameraV2DirectViewFinder* aDirectViewFinderHandle)

	{

	THashMapIter<TInt, CCamera::CCameraV2DirectViewFinder*> iter(iOwner.iHashMap);

	for (CCamera::CCameraV2DirectViewFinder* const* vF = iter.NextValue(); vF; vF = iter.NextValue())

		{

		if (*vF == aDirectViewFinderHandle)

			{

			iOwner.iHashMap.Remove(*iter.CurrentKey());

			break;

			}

		}

	}

void CMMDirectViewFinder::CreateHistogramImplFactoryL(MImplementationFactory*& /*aImplFactoryPtr*/) const

	{

	User::Leave(KErrNotSupported);

	}

void CMMDirectViewFinder::GetImageProcessingImplFactoryL(MImplementationFactory*& /*aImplFactoryPtr*/) const

	{

	User::Leave(KErrNotSupported);

	}

TAny* CMMDirectViewFinder::GetDirectSnapshotImpl(TUid /*aInterface*/) const

	{

	return NULL;

	}

void CMMDirectViewFinder::SetDirectViewFinderObserver(MDirectViewFinderObserver& aDirectViewFinderObserver)

	{

	iDirectViewFinderObserver = &aDirectViewFinderObserver;

	}

void CMMDirectViewFinder::SetDirectViewFinderHandle(CCamera::CCameraV2DirectViewFinder* aDirectViewFinderHandle)

	{

	TInt position = iOwner.iHashMap.Count();

	iDirectViewFinderHandle = aDirectViewFinderHandle;

	iOwner.iHashMap.Insert(position, iDirectViewFinderHandle);

	}

void CMMDirectViewFinder::StartViewFinderDirectL(RWsSession& aWs, CWsScreenDevice& aScreenDevice, RWindowBase& aWindow, TRect& aScreenRect)

	{

	TRect clip;

	clip.SetWidth(0);

	clip.SetHeight(0);

	StartViewFinderDirectL(aWs, aScreenDevice, aWindow, aScreenRect, clip);

	}

void CMMDirectViewFinder::StartViewFinderDirectL(RWsSession& /*aWs*/, CWsScreenDevice& aScreenDevice,

											RWindowBase& aWindow, TRect& aScreenRect, TRect& aClipRect)

	{

	// Make sure device is powered up (implies it has been reserved)

	if (!iOwner.iPoweredUp)

		{

		User::Leave(KErrNotReady);

		}

	// Ensure start is not called twice

	CCamera::CCameraV2DirectViewFinder::TViewFinderState state;

	GetViewFinderStateL(state);

	if (state != CCamera::CCameraV2DirectViewFinder::EViewFinderInActive)

		{

		User::Leave(KErrNotReady);

		}

	TInt error = KErrNone;

	if (!iPrepareCompleted)

		{

		TDirectViewFinderInfo directViewFinderInfo;

		// Retrieve screen number from the screen device

		directViewFinderInfo.iScreenNum = aScreenDevice.GetScreenNumber();

		directViewFinderInfo.iScreenRect = aScreenRect;

		directViewFinderInfo.iClipRect = aClipRect;

		TDirectViewFinderInfoPckg directViewFinderInfoPckg(directViewFinderInfo);

		// Prepare viewfinder for playback and retrieve the surface id from the graphics sink

		error = iOwner.iCameraSession.SendMessage(ECamPrepareDirectViewFinder, directViewFinderInfoPckg);

		if (error == KErrNone)

			{

			TSurfaceConfiguration surfaceConfig;

			directViewFinderInfo = directViewFinderInfoPckg();

			error = surfaceConfig.SetSurfaceId(directViewFinderInfo.iSurfaceId);

			if (error == KErrNone)

				{

				//	User::LeaveIfError(surfaceConfig.SetOrientation(CFbsBitGc::EGraphicsOrientationRotated90));

				error = surfaceConfig.SetExtent(aScreenRect);

				if (error == KErrNone)

					{

					//	User::LeaveIfError(aWindow.SetRequiredDisplayMode(EColor64K));

					error = aWindow.SetBackgroundSurface(surfaceConfig, ETrue);

					if (error == KErrNone)

						{

						iPrepareCompleted = ETrue;

						}

					}

				}

			}

		}

	if (error != KErrNone)

		{

		User::Leave(error);

		}

	// Start the viewfinder

	error = iOwner.iCameraSession.SendMessage(ECamStartDirectViewFinder);

	if (error != KErrNone)

		{

		User::Leave(error);

		}

	// HACK!!! HACK!!! HACK!!! HACK!!! HACK!!! HACK!!! HACK!!! HACK!!!

	// TODO: Here to let tests run. Will be removed once foundation provide event registration/notification APIs

	iDirectViewFinderObserver->DirectViewFinderFirstFrameDisplayed(*iDirectViewFinderHandle, KErrNone);

	}

void CMMDirectViewFinder::GetDirectViewFinderPropertiesL(TInt& aScreenNumber, TRect& aScreenRect, TRect& aClipRect) const

	{

	if (!iPrepareCompleted)

		{

		User::Leave(KErrNotReady);

		}

	TDirectViewFinderInfo info;

	TDirectViewFinderInfoPckg pckg(info);

	iOwner.iCameraSession.SendRxMessage(ECamDirectViewFinderProperties, pckg);

	info = pckg();

	aScreenNumber = info.iScreenNum;

	aScreenRect = info.iScreenRect;

	aClipRect = info.iClipRect;

	}

void CMMDirectViewFinder::PauseViewFinderDirect()

	{

	iOwner.iCameraSession.SendMessage(ECamPauseDirectViewFinder);

	}

void CMMDirectViewFinder::ResumeViewFinderDirect()

	{

	iOwner.iCameraSession.SendMessage(ECamResumeDirectViewFinder);

	// HACK!!! HACK!!! HACK!!! HACK!!! HACK!!! HACK!!! HACK!!! HACK!!!

	// TODO: Here to let tests run. Will be removed once foundation provide event registration/notification APIs

	iDirectViewFinderObserver->DirectViewFinderFirstFrameDisplayed(*iDirectViewFinderHandle, KErrNone);	

	}

void CMMDirectViewFinder::GetViewFinderStateL(CCamera::CCameraV2DirectViewFinder::TViewFinderState& aViewFinderState) const

	{

	TDirectViewFinderState state;

	TDirectViewFinderStatePckg pckg(state);

	User::LeaveIfError(iOwner.iCameraSession.SendRxMessage(ECamDirectViewFinderState, pckg));

	state = pckg();

	aViewFinderState = state.iState;

	}

void CMMDirectViewFinder::StopDirectViewFinder()

	{

	iOwner.iCameraSession.SendMessage(ECamStopDirectViewFinder);

	}

void CMMDirectViewFinder::Release()

	{

	iReferenceCount--;

	if (iReferenceCount == 0)

		{

		delete this;

		}

	}

void CMMDirectViewFinder::GetViewFinderFadingCapabilitiesL(CCameraViewFinder::TViewFinderFadingCapabilities& /*aVFFadingCapabilities*/) const

	{

	User::Leave(KErrNotSupported);

	}

void CMMDirectViewFinder::GetViewFinderFadingEffectL(CCameraViewFinder::TViewFinderFadingEffect& /*aCurrentVFFadingEffect*/) const

	{

	User::Leave(KErrNotSupported);

	}

void CMMDirectViewFinder::SetViewFinderFadingEffect(const CCameraViewFinder::TViewFinderFadingEffect& /*aVFFadingEffect*/)

	{

	TECAMEvent event(KUidECamEvent2ViewFinderFadingEffect, KErrNotSupported);

	iOwner.iCameraObserver2->HandleEvent(event);

	}

void CMMDirectViewFinder::GetViewFinderHandleL(TInt& aVFHandle) const

	{

	THashMapIter<TInt, CCamera::CCameraV2DirectViewFinder*> iter(iOwner.iHashMap);

	for (CCamera::CCameraV2DirectViewFinder* const* vF = iter.NextValue(); vF; vF = iter.NextValue())

		{

		if (*vF == iDirectViewFinderHandle)

			{

			// Handle returned is position within the hash table + 100 (arbitrary value to show uniquenness of handle)

			aVFHandle = *iter.CurrentKey() + 100;

			return;

			}

		}

	User::Leave(KErrNotFound);

	}