lowlevellibsandfws/apputils/inc/BARSC.H
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lowlevellibsandfws/apputils/inc/BARSC.H	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,87 @@
+// Copyright (c) 1997-2009 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:
+//
+
+#ifndef __BARSC_H__
+#define __BARSC_H__
+
+#include <f32file.h>
+
+//Forward declarations
+class RResourceFileImpl;
+
+/** Accesses a resource file and reads the resource data into a buffer. 
+
+Interpretation of the data is achieved using the TResourceReader class.
+
+RResourceFile instance behaviour when some problem occurs - it panics. Or asserts,
+if the used method is not "L" method.
+
+Expected behaviour when assignment operator or copy constructor is called:
+The class doesn't have assignment operator and copy constructor, so the compiler generated
+ones will be used. The heap buffers used by the source class instance will be shared with the 
+destination class instance.
+
+Expected behaviour when the RResourceFile instance is about to be destroyed:
+The class doesn't have destructor so compiler generated one will be used.
+Always call Close() to free allocated by the instance resources.
+
+@see TResourceReader 
+@publishedAll
+@released
+*/
+class RResourceFile
+	{
+public:
+	IMPORT_C RResourceFile();
+	IMPORT_C void Close();
+	IMPORT_C void OpenL(RFs &aFs,const TDesC &aName);
+	IMPORT_C TUidType UidType() const;
+	IMPORT_C void ReadL(TDes8 &aDes,TInt aResourceId) const;
+	IMPORT_C HBufC8 *AllocReadL(TInt aResourceId) const;
+	IMPORT_C HBufC8 *AllocReadLC(TInt aResourceId) const;
+	IMPORT_C void ConfirmSignatureL(TInt aSignature);
+	IMPORT_C void ConfirmSignatureL();
+	IMPORT_C TInt SignatureL() const; // not available before Release 005
+	IMPORT_C TBool OwnsResourceId(TInt aResourceId) const;
+	IMPORT_C TBool OwnsResourceIdL(TInt aResourceId) const;
+	IMPORT_C void OpenL(RFs& aFs, const TDesC& aName, TUint aFileOffset, TInt aFileSize);
+	inline TInt Offset() const;
+private:
+	void DoOpenL(RFs& aFs, const TDesC& aName, TUint aFileOffset, TInt aFileSize);
+	IMPORT_C TInt Offset2() const;
+	RResourceFileImpl* Impl();
+	const RResourceFileImpl* Impl() const;
+private:
+	enum
+		{
+		KRscFileSize = 24
+		};
+	TUint8 iImpl[KRscFileSize];
+	};
+
+/** Returns the offset value defined for this resource file. 
+   	
+This function must not be called until a call to ConfirmSignatureL() has 
+completed successfully, otherwise the value returned by this function may 
+be meaningless.
+
+@return The offset value defined for this resource file.
+@see RResourceFile::ConfirmSignatureL() */
+inline TInt RResourceFile::Offset() const 
+	{ 
+	return Offset2(); 
+	}
+
+#endif//__BARSC_H__