// Copyright (c) 2004-2009 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:

// Defines the screen class (was in scrdev.h)

// 

//

#ifndef __SCREEN_H__

#define __SCREEN_H__

#include <e32std.h>

#include <e32base.h>

#include <graphics/surface.h>

#include <hal_data.h>

#include <graphics/wsscene.h>

#include <graphics/wsdisplaypolicy.h>

#include "W32STD.H"

#include "w32cmd.h"

#include "wstypes.h"

#include <Graphics/WSGRAPHICDRAWERINTERFACE.H>

#include "panics.h"

#include "wsdisplaychangeao.h"

class CWsDirectScreenAccess;

class CWsWindowGroup;

class CWsWindow;

class CWsRootWindow;

class CWsClientWindow;

class CDebugBar;

class CScreenRedraw;

class CWsSpriteManager;

class CWindowElementSet;

class CActiveComposer;

class CRegisteredSurfaceMap;

class MWsScene;

class MWsElement;

class MWsScreenDevice;

class MWsDisplayMapping;

class MWsDisplayControl;

class MWsTextCursor;

class CGraphicsDeviceMap;

class TDisplayConfiguration;

#if defined(__WINS__) && defined(_DEBUG)

class CDebugOsbWin;

#endif

enum TAnimType

	{

	EWindowAnim			= 0x01,

	ESpriteAnim			= 0x02,

	ETextCursor			= 0x04,

	EWindowSprite   	= 0x08,

	EFloatingSprite 	= 0x10,

	EFloatingSpriteAnim = 0x20,

	ECrpAnim			= 0x40,

	};

_LIT(KWSERVIniFileVarChangeTracking, "CHANGETRACKING");

class CScreen : public CBase, public MWsScreen, public MWsScreenConfigList, public MWsScreenConfig, public MWsWindowTree

	{

public:

	enum {EGetScanLineBufLen=0x100};	// Buffer of for returning result of GetScanLine

	enum TDisplayScreen

		{

		EBlankScreenOnRotation = 0x1,

 		EAutoClear = 0x2,

 		EHasDynamicSizeModes = 0x04,

		EChangeTracking = 0x8,

		};

	/**

	The fallback map is an array of 32 bit integers sufficiently large to store a single bit for any

	possible orientation and size of the screen, with the pixel rows padded to the end of the int.

	*/

	class CFallbackMap : public CBase

		{

	public:

		static CFallbackMap * NewL(CScreen* aScreen);

		~CFallbackMap();

		void Prepare();

		TBool FillRegion(const TRegion& aRegion);

		TBool FillRect(const TRect& aRect);

		TInt Count() const;

		const TRect * Rect() const;

		const RRegion * Region() const;

		TInt Resize(const TSize& aSize);

	private:	

		CFallbackMap(CScreen* aScreen);

		void ConstructL();

	public:

		CScreen* iScreen;

		RRegionBuf<1> iRegion;

		TInt iCount;

		TInt iMapSize; // size in padded TInts

		TInt * iMap;

		};

public:

	CScreen();

	~CScreen();

	void ConstructL( const TRect& aDigitiserArea, TInt aScreenNumber);

	void AbortAllDirectDrawing(RDirectScreenAccess::TTerminationReasons aReason);

	void AddDirect(CWsDirectScreenAccess& aDirect);

	void RemoveDirect(CWsDirectScreenAccess& aDirect);

	void AbortDSAs(RDirectScreenAccess::TTerminationReasons aReason,TSglQue<CWsDirectScreenAccess>& aDirects);

	void ReleaseDsaScreenDevice();

	void AcquireDsaScreenDeviceL();

	void CreateDsaScreenDeviceIfSupportedL(TDisplayMode aScreenMode);

	TBool DoCreateDsaScreenDevice(TDisplayMode aScreenMode);

#if defined(_DEBUG)

	TBool IsDirectOnQueue(const CWsDirectScreenAccess* aDirect);

#endif

	inline CWsWindowGroup* FocusWindowGroup();

	void KillForegroundSession();

	void ResetFocus(CWsWindowGroup *aClosingWindow);

	inline TBool BlankScreenOnRotation();

	inline TBool AutoClear();

	void RemoveFromDefaultOwningList(CWsWindowGroup *aDestroyedGroup);

	void SetDefaultOwningWindow(CWsWindowGroup *aGroup);

	inline CWsWindowGroup *DefaultOwningWindowGroup();

	const MWsScreenDevice& ScreenDevice() const;

	const CGraphicsDeviceMap& DeviceMap() const;	

	inline const TSurfaceId& DsaSurface() const;

	inline CWsRootWindow* RootWindow() const;

	inline TInt ScreenNumber() const;

	void UpdateDsa();

	inline TDisplayMode DefaultDisplayMode(const TInt aMode) const;

	TDisplayMode FirstDefaultDisplayMode() const;

	void MaxNumColors(TInt& aColors,TInt& aGrays);

	TInt ColorModesFlag();

	inline void GetFadingParams(TUint8& aBlackMap,TUint8& aWhiteMap) const;

	inline void SetFadingParams(TUint8 aBlackMap,TUint8 aWhiteMap);

	void GetScanLine(const TWsSdCmdGetScanLine *aGetScanLine);

	TBool SetScreenModeEnforcement(TInt aMode);

	inline TInt ScreenSizeMode() const;

	void SetPointerCursorArea(TInt aMode,const TRect& aRect);

	inline TRect GetPointerCursorArea(TInt aMode) const;

	CFbsBitGc::TGraphicsOrientation Orientation() const;

	void CycleDisplaySize();

	TBool UpdateOrientation(MWsScene::TSceneRotation* aOldRotation = NULL);

	void doSetScreenMode(TInt aMode,TBool aInsideStartup=EFalse);

	inline TSize CurrentScreenSize() const;

	TRect DrawableArea() const;

	void CycleOrientation();

	TClientPanic SetModeRotation(TInt aMode,CFbsBitGc::TGraphicsOrientation aRotation);

	void LoadScreenSizesL(TSize aScreenSize);

	void LoadScreenSizeProperties(TDisplayMode aDefaultDisplayMode);

	void SetDigitiserAreas(const TSize& aUiSize);

	inline TInt NumScreenSizeModes() const;

	inline const TSizeMode& ScreenSizeModeData() const;

	inline const TSizeMode& ScreenSizeModeData(TInt aMode) const;

	inline TScreenModeEnforcement SizeEnforcementMode() const;

	void GetScreenSizeAndRotation(TPixelsTwipsAndRotation &aSar, TInt aScreenMode);

	void GetScreenSizeAndRotation(TPixelsAndRotation &aSar, TInt aScreenMode);

	void SetCurrentScreenModeAttributes(const TSizeMode &aModeData);

	TPoint PhysicalToLogical(TPoint aPhysicalPt);

	void IncContrast();

	void DecContrast();

	void IncBrightness();

	void DecBrightness();

	inline TBool IsValidScreenSizeMode(TInt aMode) const;

	TInt GetScreenSizeModeListL();

	// called by CWsGc when it is implementing MWsGc

	const TTime& Now() const;

	void ScheduleAnimation(TAnimType aType, const TRect& aRect,const TTimeIntervalMicroSeconds& aFromNow,const TTimeIntervalMicroSeconds& aFreq,const TTimeIntervalMicroSeconds& aStop, CWsWindow* aWindow);

	TBool IsScheduled(TAnimType aType, const TRect& aRect, CWsWindow* aWindow) const;

	// redraw scheduling code

	void AddRedrawRegion(const TRegion& aRegion, TBool aSchedule = ETrue, TRedrawDepth aDepth = ERedrawAll);

	void ScheduleRender(const TTimeIntervalMicroSeconds& aFromNow);

	void DoRedrawNow();

	void RedrawNowIfPending();

	void ScheduleRegionUpdate(const TRegion* aDefinitelyDirty);

// implementing MWsScreen

	void OnAnimation(TRequestStatus* aFinished);

	void Redraw();

	TBool RedrawInvalid(const TArray<TGraphicDrawerId>& aInvalid);

	inline TBool BackLightFlag();

// implementing interface extension

	TAny* ResolveObjectInterface(TUint aTypeId);

// implementing MWsScreenConfig... this might be better as RS interface, but half methods are in here!

	TSize ScreenModeSizeInPixels() const;

	TInt Stride() const;

	TInt SizeMode() const;

	TSize ScalingFactor() const;

	TPoint Origin() const;

	TPoint ScaledOrigin() const;

// implementing MWsScreenConfigList

	TInt	GetScreenSizeModeList(RArray<TInt>&aList) const;

	TDisplayMode DisplayModeL(TInt aIndex) const;

	TSize ScreenModeSizeInPixelsL(TInt aIndex) const;

	/** Get screen size in twips for current screen size mode as defined in wsini */

	TSize ScreenModeSizeInTwipsL(TInt aIndex) const;

	CFbsBitGc::TGraphicsOrientation OrientationL(TInt aIndex) const;

	TInt AvailableOrientationsL(TInt aIndex) const;

	TSize ScalingFactorL(TInt aIndex) const;

	TPoint OriginL(TInt aIndex) const;

	TPoint ScaledOriginL(TInt aIndex) const;

	TInt ModeFlagsL(TInt aIndex) const;

//implementing MWsWindowTree

	void SendTree() const;

// other public methods

	TDisplayMode DisplayMode() const;

	TSize SizeInPixels() const;

	TSize SizeInTwips() const;

	TSize DSASizeInPixels() const;

	inline CWindowElementSet& WindowElements() const;

 	inline MWsElement& UiElement() const;

	void ElementAdded();

	void ElementRemoved();

	//check if the current display mode has alpha

	inline TBool HasAlpha() const;

	//list of session and surface id

	CRegisteredSurfaceMap* SurfaceMap();

	void DiscardAllSchedules();

	inline CDebugBar * DebugBar();

	inline CFallbackMap * FallbackMap();

	inline CWsSpriteManager* SpriteManager() const;

	TBool IsQuickFadeScheduled( CWsWindow* aWin ) const;

	void RemoveFromQuickFadeList( CWsWindow* aWin );

	void AcceptFadeRequest( CWsWindow* aWin, TBool	aFadeOn );

	TBool HasVisibleDirectOnQueue();

	TBool IsDSAClientWindow( const CWsClientWindow* aWin ) const;

	MWsTextCursor* RenderStageTextCursor() const;

	void ClearDsaSurface(const TRect& area, const TRgb& color);

	void PositionUiElements(const TRect& aExtent,	const TRect& aViewport);

	TInt SetConfiguration(const TDisplayConfiguration& aConfig);

	void UpdateDynamicScreenModes();

	void RecalculateModeTwips(const TDisplayConfiguration* aConfig = NULL);

	inline void IncreaseDisplaySpinner();

	inline void IncreaseConfigSpinner();

	inline TInt DisplaySpinner();

	inline TInt ConfigSpinner();

	TInt AddNotificationClient(CWsClient *aClient);

	void RemoveNotificationClient(CWsClient *aClient);

	TInt FindNotificationClient (CWsClient *aClient);

	TInt GetNotificationClients(RPointerArray<CWsClient>& aClientsArray);

	inline MWsDisplayPolicy* DisplayPolicy();

	inline MWsDisplayMapping* DisplayMapping();

	//CR1577

	inline TBool ChangeTracking() const;

	inline MWsWindowTreeObserver* WindowTreeObserver() const;

	inline MWsDrawAnnotationObserver* DrawAnnotationObserver() const;

	inline MWsWindowVisibilityNotifier* WindowVisibilityNotifier() const;

	void ScheduleWindow(CWsWindow* aWindow);

	void RemoveFromScheduledList(CWsWindow* aWindow);

	void RemoveFromTimedDrawList(CWsWindow* aWindow);

	void SetupVisibleRegionTracking(CWsWindow& aWindow, TBool aRegister) const;

	TBool IsAnimating() const;

private:

	class TInternalSizeMode: public TSizeMode

		{

	public:

		inline TInternalSizeMode(){}

		inline TInternalSizeMode(TSize& aSize)

			:	TSizeMode(aSize), iFlags(0)

			{	}

		TInt iFlags;

		};

	enum TSyncConsts

		{

		KDSAAbortingImmediateRespAwaitFrameMicrosec = 80000		// 0.08 sec

		};

	void SetInitialScreenSizeModeAndRotation();

	CWsWindowGroup* FindNewFocus(CWsRootWindow* aRootWindow);

	void UpdateCompositionMode();

	void InitializeSceneL();

	void InitializeUiElementsL();

	TInt InitializeDsaSurface();

	void LoadScreenRotationProperties(TInternalSizeMode& aMode, const TInt aModeIndex);

	void LoadScreenTwipsProperties(TInternalSizeMode& aMode, const TInt aModeIndex);

	void CreateFallbackMapL();

	MWsElement* CreateUiElementL(const TRect& aExtent);

	const TInternalSizeMode* ModePtrL(TInt aIndex) const;

	void ApplyRemainingWsiniSettingsL();

private:

	enum

		{

		eTimerCreated=0x1,

		};

	enum TDsaDrawState

		{

		EDsaDrawStateIdle,

		EDsaDrawStateDrawing

		};

private:

	TSglQue<CWsDirectScreenAccess> iDirects;

	RTimer iTimer;

	TRequestStatus iTimerStatus;

	TUint iFlags;

	CScreenRedraw* iRedraw;

	CWsRootWindow* iRootWindow;

	CWsWindowGroup *iCurrentFocus;

	CWsWindowGroup *iDefaultOwningWindow;

	MWsScreenDevice* iScreenDevice;

	CFbsScreenDevice* iDsaDevice;

	CFbsBitGc* iDsaGc;

	CGraphicsDeviceMap* iDeviceMap;

// Size and rotation members

	RPointerArray<TInternalSizeMode> *iModes;

	TInt iScreenSizeMode;

	TScreenModeEnforcement iSizeEnforcementMode;

	TInt iScreenNumber;

	TInt iMaxContrast;

	TInt iMaxBrightness;

	TInt iNumScreenSizeModes;

	TInt iNumSupportedScreenSizeModes;

	TInt iNumberDrawingDsa;

	TBool iBackLightFlag;

	TDsaDrawState iDsaDrawState;

	MWsDisplayMapping* iDisplayMapping;

	MWsDisplayControl* iDisplayControl;

	MWsDisplayPolicy* iDisplayPolicy;

	MWsScene* iScene;

	CWindowElementSet* iWindowElementSet;

	MWsElement* iUiElement;

	TSurfaceId iDsaSurface;

	CRegisteredSurfaceMap* iSurfaceMap;

	CDebugBar* iDebugBar;

	CFallbackMap* iFallbackMap;

	TUint8 iBlackMap;

	TUint8 iWhiteMap;

	CWsSpriteManager* iSpriteManager;

	//The next three interfaces should be provided by renderstages if the screen is to be used in CHANGETRACKING mode

	MWsWindowTreeObserver* iWindowTreeObserver;

	MWsDrawAnnotationObserver* iDrawAnnotationObserver;

	MWsWindowVisibilityNotifier* iWindowVisibilityNotifier;

#if defined(__WINS__) && defined(_DEBUG)

	CDebugOsbWin* iDebugWin;

#endif

	CWsDisplayChangeNotifier* iDisplayChangeNotifier;

	CWsConfigChangeNotifier* iConfigChangeNotifier;

	TInt iDisplayChangeSpinner;

	TInt iConfigChangeSpinner;

	RPointerArray<CWsClient> iWsClientList; 

	TRect iDigitiserArea;

	};

//

// inlines			//

//

//

// CScreen

//

inline CWsWindowGroup* CScreen::FocusWindowGroup()

	{return(iCurrentFocus);}

inline TBool CScreen::BlankScreenOnRotation()

	{return(iFlags&EBlankScreenOnRotation);}

inline TBool CScreen::AutoClear()

	{return(iFlags&EAutoClear);}

inline CWsWindowGroup* CScreen::DefaultOwningWindowGroup()

	{return(iDefaultOwningWindow);}

inline const TSurfaceId& CScreen::DsaSurface() const

	{return iDsaSurface;}

inline CWsRootWindow* CScreen::RootWindow() const

	{return iRootWindow;}

inline TInt CScreen::ScreenNumber() const

	{return iScreenNumber;}

//

inline TInt CScreen::ScreenSizeMode() const

	{return(iScreenSizeMode);}

inline TRect CScreen::GetPointerCursorArea(TInt aMode) const

	{return (*iModes)[aMode]->iPointerCursorArea;}

inline TSize CScreen::CurrentScreenSize() const

	{return (*iModes)[iScreenSizeMode]->iScreenSize;}

inline TInt CScreen::NumScreenSizeModes() const

	{return iNumScreenSizeModes;}

inline const TSizeMode& CScreen::ScreenSizeModeData() const

	{return *(*iModes)[iScreenSizeMode];}

inline const TSizeMode& CScreen::ScreenSizeModeData(TInt aMode) const

	{return *(*iModes)[aMode];}

inline TDisplayMode CScreen::DefaultDisplayMode(const TInt aMode) const

	{return (*iModes)[aMode]->iDefaultDisplayMode;}

inline TScreenModeEnforcement CScreen::SizeEnforcementMode() const

	{return iSizeEnforcementMode;}

inline TBool CScreen::IsValidScreenSizeMode(TInt aMode) const

	{return (aMode>=0 && aMode<iModes->Count() && (*iModes)[aMode]!=NULL);}

inline TBool CScreen::BackLightFlag()

	{return iBackLightFlag;}

inline TBool CScreen::HasAlpha() const

	{return (0x3 & (0x1 << (EColor16MAP - DisplayMode())));} //currently it is just EColor16MA Or EColor16MAP

inline CWindowElementSet& CScreen::WindowElements() const

	{

	return *iWindowElementSet;

	}

inline MWsElement& CScreen::UiElement() const

    {

    return *iUiElement;

    }

inline CDebugBar * CScreen::DebugBar()

	{return iDebugBar;}

inline CScreen::CFallbackMap * CScreen::FallbackMap()

	{return iFallbackMap;}

inline void CScreen::GetFadingParams(TUint8& aBlackMap,TUint8& aWhiteMap) const

    {aBlackMap=iBlackMap;aWhiteMap=iWhiteMap;}

inline void CScreen::SetFadingParams(TUint8 aBlackMap,TUint8 aWhiteMap)

	{iBlackMap=aBlackMap;iWhiteMap=aWhiteMap;}

inline CWsSpriteManager* CScreen::SpriteManager() const

	{return iSpriteManager;}

inline MWsWindowTreeObserver* CScreen::WindowTreeObserver() const

	{return iWindowTreeObserver;}

inline MWsDrawAnnotationObserver* CScreen::DrawAnnotationObserver() const

	{return iDrawAnnotationObserver;}

inline MWsWindowVisibilityNotifier* CScreen::WindowVisibilityNotifier() const

	{return iWindowVisibilityNotifier;}

inline TBool CScreen::ChangeTracking() const

	{return iFlags&EChangeTracking;}

inline void CScreen::IncreaseDisplaySpinner()

	{iDisplayChangeSpinner++;}

inline void CScreen::IncreaseConfigSpinner()

	{iConfigChangeSpinner++;}

inline TInt CScreen::DisplaySpinner()

	{return iDisplayChangeSpinner;}

inline TInt CScreen::ConfigSpinner()

	{return iConfigChangeSpinner;}

inline MWsDisplayPolicy* CScreen::DisplayPolicy()

	{return iDisplayPolicy;}

inline MWsDisplayMapping* CScreen::DisplayMapping()

	{return iDisplayMapping;}

#endif