/*

* 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:   Mapping function handlers

*

*/

#ifndef __ALFHIERARCHYMODEL_H__

#define __ALFHIERARCHYMODEL_H__

#include <s32mem.h>

#include <e32base.h>

#include <e32hashtab.h>

#include <gdi.h>

#include <alfwindowstructs.h>

#include "alfstreamerbridge.h"

#include <uiacceltk/HuiUtil.h>  // USER_INVARIANT

// forward declarations

class CAlfStreamerServer;

class CFbsBitmap;

class TPoint;

class TRect;

class CAlfWindow;

class TRgb;

class CFbsBitGc;

class CAlfNodeRoot;

class CAlfNode;

#include <graphics/wsgraphicdrawer.h>

#include <graphics/wsgraphicscontext.h>

/*

 * Helper class for hash array

 */

NONSHARABLE_CLASS(CNodeHashStruct)

        {

    public:

        CNodeHashStruct( CAlfNode* aNode ) : iNode( aNode ) { };

        CAlfNode* iNode;

        };

NONSHARABLE_CLASS(CAlfHierarchyModel) : public CBase, public MAlfBatchObs

    {

public:

    static CAlfHierarchyModel* NewL(CAlfStreamerServer& aServer);

    CAlfStreamerServer& Server()

        {

        return iServer;

        }

    virtual ~CAlfHierarchyModel();

    void HandleMessageL( const RMessage2& aMessage );

    void ShareChunkL( const RMessage2& aMessage );

    void CloseChunk( TInt32 aChunkId );

    void OpenChunkL( const RMessage2& aMessage );

    // utils

    void DoReleaseSemaphor();

    void RequestPacketEndCallback( TInt aOffset );

    void RequestFrameEndCallback();

    RHashMap<TUint32,CNodeHashStruct> iNodeHashArray;

    CAlfNode* FindNode( TUint32 aWindowId );

    TInt InsertNode( TUint32 aWindowId, CAlfNode* aNode );

    TBool RemoveNode( TUint32 aWindowId );

    void RemoveAllNodes();

private:

    CAlfHierarchyModel(CAlfStreamerServer& aServer):iServer(aServer){};

    void AppendScreen( TInt aScreenNumber );

    void RemoveScreen( TInt aScreenNumber );

    void ConstructL();

	void ProcessUnknownNodeDrawingL( RMemReadStream& aStream );

protected:

    void ReadEndMarkerL();

private:

    /**

     * ReadRectL

     * Convinience function for reading a TRect from stream

     *

     * @since S60 ?S60_version

     * @param TRect

     */

public:

    void ReadRectL(TRect& aRect, RMemReadStream* aStream );

//    static TInt DoSignal( TAny* aObject );

private:

    /**

     * ReadRegionL

     * Convinience function for reading a RRegion from stream

     *

     * @since S60 ?S60_version

     * @param Region  

     */

    void ReadRegionL( RMemReadStream* aStream, RRegion& aRegion, TPoint aWindowPos = TPoint(0,0) );

    void ExecuteDrawCommandsL( CAlfWindow** aWindow, TAny* aPtr, TInt aSize );

    /**

     * ExecuteCommandsL

     * Internalizes the streamed data.

     *

     * @since S60 ?S60_version

     */

    void ExecuteCommandsL();

    // Commands from window tree oberver at renderstage

    void DoNodeCreatedL();

    void DoNodeReleasedL();

    void DoNodeActivatedL();

    void DoNodeExtentChangedL();

    void DoNodeSiblingOrderChangedL();

    void DoNodeFlagChangedL();    

	void DoNodeFadeCountChangedL();

	void DoNodeTransparentRegionChangedL();

	void DoNodeLayerAddedL();

	void DoNodeLayerExtentChangedL();

	void DoNodeLayerUsesAlphaFlagChangedL();

	void DoNodeMovedToWindowGroupL();

	void DoNodeWindowGroupChainedL();

	void DoNodeWindowGroupChainBrokenAfterL();

	void DoNodeAttributeChangedL();

	void DoNodeDebugTrackL();

	void DoNodeFadeAllChildrenL();

private: // from bridge

    virtual void BridgerCallback( TInt aOp, TInt aInt );

    virtual void BridgerCanceled()

        {

        }

    void SetSynchMessage(const RMessage2* aMsg)

        {

        iMessage = *aMsg;

        }

public:

    /*

     * Shared chunk handle. Owned by CAlfRenderStage's CAlfSendBuffer

     */

	TUint8* ChunkBase( TUint32 aChunkIndex = 0)

		{

		if ( aChunkIndex == 0 )

		    {

		    return iChunk.Base() +  sizeof( TChunkHeader);

		    }

		else

		    {

		    return iCacheChunks.Find( aChunkIndex )->Base() +  sizeof( TChunkHeader);

		    }

		}

	   CAlfNodeRoot* iRootNode;

private: // variables

    RChunk iChunk;

    RHashMap<TUint32,RChunk> iCacheChunks;

    TInt32 iChunkInUse;

    CAlfStreamerServer& iServer;

    /*

     * Readstream for the above chunk.

     */

    RMemReadStream* iStream;

    // Todo: debug only

    TInt iUsedCommands[100];

    RRegion iUpdateRegion;

    RMessagePtr2 iMessage;

    RMessagePtr2 iSpaceNotificationMessage;

    TBool iWaitingBridgerToComplete;

    RCriticalSection iSema;

    CAlfNode* iPreviouslySearchedNode;

    /*

     * For debugging the amount of drawn frames

     */

    TInt iFrame;

    TChunkHeader* iChunkHeader;

    CFbsBitGc* iGc;

    RArray<RMessagePtr2> iPendingAlfWindowDataMessages;

    TPoint	iWindowPos;

    friend class CAlfNode;

    TInt iScreenNumber;

    CPeriodic*  iPeriodic;

    TInt iSpaceNotificationCounter;

    TBool iBatchAlreadyCommited;

	TBool iSpaceNotificationMessageOrphean;

	TInt iPreviousCallbackOffset;

	TInt iSearchNode;

#ifdef ALF_DEBUG_TRACK_DRAWING 

	CAlfCommandDebug* iCommandDebugger;

#endif	

    TBool iDidForcedComplete;

    };

#endif