author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 07 Jan 2010 12:46:28 +0200 | |
changeset 1 | ceeb73e410b5 |
parent 0 | d11fb78c4374 |
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/* |
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* Copyright (c) 2004-2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Contains the CProtocolsLoader class definition. |
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* |
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*/ |
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#ifndef CPROTOCOLSLOADER_H |
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#define CPROTOCOLSLOADER_H |
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#include <e32base.h> |
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class MProtPrintingDevice; |
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class CProtocolsLoader : public CBase |
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{ |
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public: |
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static CProtocolsLoader* NewL(); |
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~CProtocolsLoader(); |
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/** |
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* Gets the number of protocol implementations that could be loaded. |
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* @return Number of protocols available. |
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*/ |
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TInt GetNumberOfProtocolsAvailable() const; |
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/** |
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* Gets the next protocol in the internal list of protocols. |
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* |
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* Returns a pointer to the next protocol in the list. If the end of the list is reached, it starts the list over. |
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* The order in which protocols will be returned is: DPOF, BPP, PictBridge, any other protocols (sorted alpha- |
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* betically). This pointer should not be deleted. |
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* @return Pointer to the next protocol instance. |
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*/ |
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MProtPrintingDevice* GetNextProtocol(); |
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/** |
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* Gets the protocol located in the position specified. |
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* @param aIndex Index of the desired protocol. If there are 3 protocols, the valid indexes are: 0, 1, 2. |
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* @return Pointer to the next protocol instance. This pointer should not be deleted. |
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*/ |
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MProtPrintingDevice* GetProtocolAt(TInt aIndex); |
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/** |
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* Resets the inner pointers to the beginning of the protocols' list. |
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*/ |
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void Reset(); |
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/** |
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* Returns the index of the current protocol |
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*/ |
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TInt GetProtocolIndex() const; |
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/** |
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* @brief Returns the Protocols supported by the DLL. It can be any of the KImagePrint_PrinterProtocol* constants. |
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* @return An OR'ed value with the supported protocols information. |
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*/ |
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TUint SupportedProtocols() const; |
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private: |
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CProtocolsLoader(); |
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void ConstructL(); |
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void LoadL(); |
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static void CleanupProt( TAny* aData ); |
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private: // data |
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/// Used to store the number of protocols loaded and available for use. |
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TInt iAvailableProtocols; |
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/// Index of the next protocol available. |
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TInt iProtIndex; |
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/// Pointer array used to store the reference to the protocols. |
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RPointerArray<MProtPrintingDevice> iProtocols; |
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/// OR'ed value with the supported protocols information. |
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TUint iSupportedProtocols; |
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}; |
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#endif // CPROTOCOLSLOADER_H |
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// End of File |