/*

* 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:   Screen class

*

*/

#include "alfscreen.h"

#include <aknenv.h>

#include <AknsConstants.h>

#include <s32mem.h>

#include <uiacceltk/HuiEnv.h>

#include <uiacceltk/HuiSkin.h>

#include <uiacceltk/HuiDisplay.h>

#include <uiacceltk/HuiControl.h>

#include <uiacceltk/HuiControlGroup.h>

#include <uiacceltk/HuiEvent.h>

#include <uiacceltk/HuiDeckLayout.h>

#include <uiacceltk/HuiImageVisual.h>

#include <uiacceltk/HuiTransformation.h>

#include <uiacceltk/HuiBorderBrush.h>

#include <uiacceltk/HuiUtil.h>

#include <uiacceltk/HuiTextVisual.h>

#include <uiacceltk/HuiGradientBrush.h>

#include <uiacceltk/HuiImageBrush.h>

#include <uiacceltk/HuiCanvasVisual.h>

#ifdef SYMBIAN_BUILD_GCE

#include <bautils.h>

#endif

//_LIT8(KAlfSessionContainerControlTag, "Session container");

_LIT8(KAlfWindowFloatingSpriteContainerControlTag, "FSPRITE");

_LIT8(KAlfFullScreenEffectContainerControlTag, "EFFECT");

//_LIT8(KAlfWindowGroupTemporaryRemoveControlTag, "WGTEMP");

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

CAlfScreen::CAlfScreen() 

	{

	};

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

void CAlfScreen::ConstructL(TInt aScreenNum, MHuiDisplayRefreshObserver& aObserver, CHuiEnv& aHuiEnv, CAlfSharedDisplayCoeControl* aSharedCoeControl)

	{

	iScreenNum = aScreenNum;

	CAlfSharedDisplayCoeControl* coeControl = aSharedCoeControl;

	if (!coeControl)

		{

		// Create own coe control

		// \todo: This works only if the screen is created to screen 0. Do *not* work

		//        for external screens.

		iCoeControl = new (ELeave) CAlfSharedDisplayCoeControl();

		iCoeControl->ConstructL();

		iCoeControl->DrawableWindow()->EnableVisibilityChangeEvents();

		iCoeControl->DrawableWindow()->SetPosition(TPoint(0, 0)); 

		// This is not the main ALF native control, put it back

		iCoeControl->DrawableWindow()->SetOrdinalPosition(-2000);

		coeControl = iCoeControl;

		}

	// Resolve screen buffer uid

	// \todo currently only screen 0 and 1 are supported 

	TUid screenBufferUid;

	switch(iScreenNum)

		{

		case 0: 

			screenBufferUid = KHuiUidBackBufferScreen0;	

			break;

		case 1: 

		default: 

			screenBufferUid = KHuiUidBackBufferScreen1;	

			break;		

		}

	// create display

	iDisplay = &aHuiEnv.NewDisplayL(coeControl->Rect(), coeControl, 0, NULL,CHuiDisplay::EDisplayNormal, screenBufferUid);

	CommonConstructL(aObserver, aHuiEnv);

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

void CAlfScreen::ConstructL(TInt aScreenNum, MHuiDisplayRefreshObserver& aObserver, CHuiEnv& aHuiEnv, RWindow* aWindow)

	{

	iScreenNum = aScreenNum;

	TUid screenBufferUid;

	switch(iScreenNum)

		{

		case 0: 

			screenBufferUid = KHuiUidBackBufferScreen0;	

			break;

		case 1: 

		default: 

			screenBufferUid = KHuiUidBackBufferScreen1;	

			break;		

		}

	// create display

	iDisplay = &aHuiEnv.NewDisplayL(aWindow, 0, NULL,CHuiDisplay::EDisplayNormal, screenBufferUid);

	CommonConstructL(aObserver, aHuiEnv);

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

void CAlfScreen::CommonConstructL( MHuiDisplayRefreshObserver& aObserver, CHuiEnv& aHuiEnv)

    {	

	iDisplay->iRefreshObservers.AppendL(aObserver);	

	// Create special control group for floating sprites

	iFloatingSpriteControlGroup = &aHuiEnv.NewControlGroupL(0xDEADBEEF + iScreenNum); // TODO

	CHuiControl* cntrl = new (ELeave) CHuiControl(aHuiEnv);

	CleanupStack::PushL(cntrl); 

	cntrl->ConstructL();

	cntrl->SetRole(EAlfWindowFloatingSpriteContainer);

	iFloatingSpriteControlGroup->AppendL(cntrl);

	CleanupStack::Pop(cntrl);

	CHuiCanvasVisual* layout = CHuiCanvasVisual::AddNewL(*cntrl);            

	layout->SetTagL(KAlfWindowFloatingSpriteContainerControlTag);	

	// Create special control group for full screen effects

	iFullscreenEffectControlGroup = &aHuiEnv.NewControlGroupL(0xDEADBEEF + 10 + iScreenNum ); // TODO

	CHuiControl* effectCntrl = new (ELeave) CHuiControl(aHuiEnv);		    

	CleanupStack::PushL(effectCntrl); 

	effectCntrl->ConstructL();

	effectCntrl->SetRole(EAlfFullScreenEffectContainer);

	iFullscreenEffectControlGroup->AppendL(effectCntrl);

	CleanupStack::Pop(effectCntrl);

	CHuiCanvasVisual* effectLayout = CHuiCanvasVisual::AddNewL(*effectCntrl);            

	effectLayout->SetTagL(KAlfFullScreenEffectContainerControlTag);

#ifdef SYMBIAN_BUILD_GCE

#ifndef __WINSCW__

    _LIT(KRDSupport, "c:\\resource\\errrd" );

    if (CHuiStatic::FsSession().Handle() && BaflUtils::FileExists( CHuiStatic::FsSession(), KRDSupport ))

        {

        // FPS Counter with hitchcock drawing

        iFPSText = CHuiTextVisual::AddNewL(*effectCntrl, effectLayout);

        iFPSText->SetColor(KRgbBlue);

        iFPSText->SetFlag(EHuiVisualFlagManualLayout);

        iFPSText->SetPos(THuiRealPoint(300,20)); // could be adjusted

        iFPSText->SetSize(THuiRealSize(50,50));

        }

#endif

#endif

	}

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

TSize CAlfScreen::Size() const

    {

    return iDisplay->VisibleArea().Size();    

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

CAlfScreen::~CAlfScreen() 

	{

	// this deletes also control and layout

	delete iFullscreenEffectControlGroup; 

	// this deletes also control and layout

	delete iFloatingSpriteControlGroup;

	delete iDisplay;

	iControlGroups.Close();

	delete iCoeControl;

	delete iSwRenderingTarget;

	};

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

void CAlfScreen::SetVisualTreeVisibilityChanged(TBool aChanged)

    {

    if (aChanged && iDisplay)

        {

        iDisplay->SetDirty();

        }

    iVisualTreeVisibilityChanged = aChanged;    

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

// 

TBool CAlfScreen::IsVisualTreeVisibilityChanged()

    {

    return iVisualTreeVisibilityChanged;    

    }