lowlevellibsandfws/apputils/inc/BACLIPB.H
author William Roberts <williamr@symbian.org>
Mon, 08 Mar 2010 21:45:03 +0000
branchCompilerCompatibility
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Create CompilerCompatibility branch
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// Copyright (c) 1997-2009 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:
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// Started by DS, October 1996
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// Clipboard
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// 
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//
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#if !defined(__BACLIPB_H__)
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#define __BACLIPB_H__
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#if !defined(__e32std_h__)
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#include <e32std.h>
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#endif
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#if !defined(__e32base_h__)
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#include <e32base.h>
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#endif
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#if !defined(__s32file_h__)
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#include <s32file.h>
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#endif
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class CClipboard : public CBase
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/** Clipboard. A repository of copied data which is available for pasting. The 
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clipboard storage drive is defined in the HAL layer, in HAL::EClipboardDrive. 
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@publishedAll
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@released
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*/
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    {
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public:
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	IMPORT_C static CClipboard* NewForReadingLC(RFs& aFs);
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	IMPORT_C static CClipboard* NewForReadingL(RFs& aFs);
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	IMPORT_C static CClipboard* NewForWritingLC(RFs& aFs);
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	IMPORT_C static TInt Clear(RFs& aFs);
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	IMPORT_C ~CClipboard();
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	//
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	// Necessary only when writing
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	IMPORT_C void CommitL();
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	//
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	inline CStreamStore& Store() const;
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	inline CStreamDictionary& StreamDictionary() const;
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    // Provide functionality to read and write floating point numbers
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    // in a native format.
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    // (see note below)
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    IMPORT_C void  CopyToL     ( TReal aReal ) __SOFTFP;
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    IMPORT_C TBool PasteFromL  ( TReal& aReal );
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    // Get a number from the clipboard, return false if it is not present
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    // in which case the parameter is unmodified.
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	// Gets the drive where the clipboard file is stored
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	IMPORT_C static TDriveName ClipboardFileDrive();
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private:
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	inline CClipboard(RFs& aFs);
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	static CClipboard* NewLC(RFs& aFs);
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	void ConstructReadL();
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private:
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	CFileStore* iStore;
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	CStreamDictionary* iStreamDictionary;
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	RFs& iFs;
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    };
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inline CStreamStore& CClipboard::Store() const
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	/** Returns a reference to the clipboard's file store.
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	@return A reference to the clipboard's store. */
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	{ return *iStore; }
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inline CStreamDictionary& CClipboard::StreamDictionary() const
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	/** Returns a reference to the clipboard's stream dictionary.
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	@return A reference to the clipboard's stream dictionary. */
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	{ return *iStreamDictionary; }
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// NB the floating point copy and paste member functions are currently the only
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// ones of this type defined in the class.  Most clipboard data consists of
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// more complex objects known only at a higher level than BAFL.  This raises the
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// question of whether the clipboard should provide equivalent functionality
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// for other basic data types or whether there should be a utility class
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// elsewhere to do all such operations in a standard format and handle the
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// multiple representations too. - PNJ, January 1997.
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#endif