1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/windowing/windowserver/nga/SERVER/openwfc/Direct.H	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,149 @@
     1.4 +// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// Definition of Direct Screen Access class
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef __DIRECT_H__
    1.22 +#define __DIRECT_H__
    1.23 +
    1.24 +#include <e32std.h>
    1.25 +#include <e32base.h>
    1.26 +#include "W32STD.H"
    1.27 +#include "w32cmd.h"
    1.28 +#include "OBJECT.H"
    1.29 +#include "CLIENT.H"
    1.30 +#include <e32msgqueue.h>
    1.31 +
    1.32 +class CWsClientWindow;
    1.33 +class CWsDirectScreenAccess;
    1.34 +class CDsaMsgQueue;
    1.35 +
    1.36 +NONSHARABLE_CLASS(CWsAbortDirect) : public CActive
    1.37 +	{
    1.38 +public:
    1.39 +	CWsAbortDirect(CWsDirectScreenAccess* aDirect,CDsaMsgQueue* aParent);
    1.40 +	~CWsAbortDirect();
    1.41 +	void Started();
    1.42 +	void Complete(TInt aReason);
    1.43 +private:
    1.44 +	//Pure virtual function from CActive
    1.45 +	void RunL();
    1.46 +	void DoCancel();
    1.47 +private:
    1.48 +	CWsDirectScreenAccess* iDirect;
    1.49 +	CDsaMsgQueue* iParent;
    1.50 +	};
    1.51 +
    1.52 +NONSHARABLE_CLASS(CDsaMsgQueue) : public CBase
    1.53 +{
    1.54 +	public:
    1.55 +		static CDsaMsgQueue* NewL(CWsDirectScreenAccess* aDirect);
    1.56 +		~CDsaMsgQueue();
    1.57 +		TInt CreateSendQueue();
    1.58 +		TInt CreateRecQueue();
    1.59 +		RMsgQueueBase* SendQueue();
    1.60 +		RMsgQueueBase* RecQueue();
    1.61 +		void Cancel();
    1.62 +		void Complete();
    1.63 +		void CompleteAbort();
    1.64 +		void Started();
    1.65 +		TInt Send(TInt aData);
    1.66 +		TInt ReceiveData();
    1.67 +		TRequestStatus& Status()
    1.68 +		{
    1.69 +			return iAborted->iStatus;
    1.70 +		}
    1.71 +		
    1.72 +	private:
    1.73 +		CDsaMsgQueue();
    1.74 +		void ConstructL(CWsDirectScreenAccess* aDirect);
    1.75 +	private:
    1.76 +		RMsgQueueBase iSendQueue;
    1.77 +		RMsgQueueBase iRecQueue;
    1.78 +		CWsAbortDirect* iAborted;
    1.79 +	};
    1.80 +
    1.81 +class CWsDirectScreenAccess : public CWsScreenObject
    1.82 +	{
    1.83 +public:
    1.84 +	enum TStatus
    1.85 +		{
    1.86 +		EDirectStatusTimeNotCreated,
    1.87 +		EDirectStatusNone,
    1.88 +		EDirectStatusInitialising,
    1.89 +		EDirectStatusRunning,
    1.90 +		EDirectStatusCompleted,
    1.91 +		EDirectStatusCanceling,
    1.92 +		EDirectStatusAbortedWindow,
    1.93 +		EDirectStatusAbortedGlobal,
    1.94 +		EDirectStatusAborted=EDirectStatusAbortedWindow,
    1.95 +		};
    1.96 +public:
    1.97 +	static CWsDirectScreenAccess* NewL(CWsClient* aOwner,TBool aRegionTrackingOnly);
    1.98 +	~CWsDirectScreenAccess();
    1.99 +	void Request(TInt handle);
   1.100 +	void GetRegion(TInt aNumRects);
   1.101 +	void Cancel();
   1.102 +	void Aborted();
   1.103 +	void AbortNow();
   1.104 +	TInt GetSendQueue();
   1.105 +	TInt GetRecQueue();
   1.106 +	void SignalAbort(RDirectScreenAccess::TTerminationReasons aReason);
   1.107 +	inline TRequestStatus& AbortStatus() {return iMsgQueue->Status();}
   1.108 +	void CancelAbortObject();
   1.109 +	void Abort();
   1.110 +	//Pure virtual function from CWsObject
   1.111 +	void CommandL(TInt aOpcode, const TAny* aCmdData);
   1.112 +	inline TBool IsVisible() const;
   1.113 +	inline TBool IsRegionTrackingOnly();
   1.114 +	TBool IsAbortRequired(const TRegion& aTopVisibleRegion) const;
   1.115 +	inline CWsClientWindow* ClientWindow() const;
   1.116 +public:
   1.117 +	TSglQueLink iLink;
   1.118 +	TSglQueLink iMultipleDSALink;
   1.119 +	TSglQueLink iAbortLink; // Used to build a list of DSA objects that need to be aborted on a specific window
   1.120 +private:
   1.121 +	inline CWsDirectScreenAccess(CWsClient* aOwner): CWsScreenObject(aOwner,WS_HANDLE_DIRECT, aOwner->Screen()) {}
   1.122 +	void ConstructL(TBool aRegionTrackingOnly);
   1.123 +	TInt Initiate();
   1.124 +	void Terminate1();
   1.125 +	void Terminate2();
   1.126 +	void CorrectScreen();
   1.127 +#if defined(_DEBUG)
   1.128 +	TBool OnQueue();
   1.129 +#endif
   1.130 +private:
   1.131 +	CWsClientWindow* iWin;
   1.132 +	RWsRegion iVisible;
   1.133 +	CDsaMsgQueue* iMsgQueue;
   1.134 +	TStatus iStatus;
   1.135 +	RDirectScreenAccess::TTerminationReasons iAbortReason;
   1.136 +	TBool iRegionTrackingOnly;
   1.137 +	};
   1.138 +
   1.139 +inline TBool CWsDirectScreenAccess::IsVisible() const
   1.140 +	{
   1.141 +	return !iVisible.IsEmpty();
   1.142 +	}
   1.143 +inline CWsClientWindow* CWsDirectScreenAccess::ClientWindow() const
   1.144 +	{
   1.145 +	return iWin;
   1.146 +	}
   1.147 +
   1.148 +inline TBool CWsDirectScreenAccess::IsRegionTrackingOnly()
   1.149 +	{
   1.150 +	return iRegionTrackingOnly;
   1.151 +	}
   1.152 +#endif