--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lowlevellibsandfws/apputils/src/BARSREAD.CPP	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,622 @@
+// 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:
+// Resource reader
+// 
+//
+
+#include <barsread.h>
+#include "BaRsReadImpl.h"
+
+#define UNUSED_VAR(a) a = a
+
+/** Sets the buffer containing the resource data.
+
+The current position within the buffer is set to the start of the buffer so 
+that subsequent calls to the interpreting functions, for example ReadInt8(), 
+start at the beginning of this buffer.
+
+@param aBuffer A pointer to an 8-bit non-modifiable descriptor containing 
+or representing resource data. */
+EXPORT_C void TResourceReader::SetBuffer(const TDesC8* aBuffer)
+	{
+	CreateImpl();
+	Impl()->SetBuffer(aBuffer);
+	}
+
+/** Returns the current position within the resource buffer. 
+
+The function makes no assumption about the type of data in the buffer at the 
+current position.
+
+@return A pointer to the current position within the resource buffer. */
+EXPORT_C const TAny* TResourceReader::Ptr()
+    {
+	return Impl()->Ptr();
+    }
+
+/** Interprets the data at the current buffer position as leading byte count data 
+and constructs an 8 bit heap descriptor containing a copy of this data.
+
+The data is interpreted as:
+
+a byte value defining the number of 8 bit text characters or the length of 
+binary data (the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 8 bit text characters or binary data.
+
+If the value of the leading byte is zero, the function assumes that no data 
+follows the leading byte and returns a NULL pointer.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Use this explicit 8-bit variant when the resource contains binary data. If 
+the resource contains text, then use the build independent variant ReadHBufCL().
+
+In general, this type of resource data corresponds to one of the following:
+
+a LTEXT type in a resource STRUCT declaration.
+
+a variable length array within a STRUCT declaration which includes the LEN 
+BYTE keywords.
+
+@return A pointer to the 8-bit heap descriptor containing a copy of the data 
+following the leading byte count at the current position within the resource 
+buffer. The pointer can be NULL. */
+EXPORT_C HBufC8* TResourceReader::ReadHBufC8L()
+	{
+	return Impl()->ReadHBufC8L();
+	}
+
+/** Interprets the data at the current buffer position as leading byte count data 
+and constructs a 16 bit heap descriptor containing a copy of this data.
+
+The data is interpreted as:
+
+a byte value defining the number of 16 bit text characters
+(the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 16 bit text characters.
+
+If the value of the leading byte is zero, the function assumes that no data 
+follows the leading byte and returns a NULL pointer.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Do not use this explicit 16-bit variant when the resource contains binary 
+data; use the explicit 8-bit variant instead. If the resource contains text, 
+use the build independent variant ReadHBufCL().
+
+@return A pointer to the 16-bit heap descriptor containing a copy of the 
+data following the leading byte count at the current position within the resource 
+buffer. The pointer can be NULL. */
+EXPORT_C HBufC16* TResourceReader::ReadHBufC16L()
+	{
+	return Impl()->ReadHBufC16L();
+	}
+
+/** Interprets the data at the current buffer position as leading byte count data 
+and constructs an 8 bit non modifiable pointer descriptor to represent this 
+data.
+
+The data is interpreted as:
+
+a byte value defining the number of text characters or the length of binary 
+data (the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 8 bit text characters or binary data.
+
+If the value of the leading byte is zero, calling Length() on the returned 
+TPtrC8 returns zero.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Use this explicit 8-bit variant when the resource contains binary data. If 
+the resource contains text, then use the build independent variant ReadTPtrC().
+
+In general, this type of resource data corresponds to one of the following:
+
+a LTEXT type in a resource STRUCT declaration.
+
+a variable length array within a STRUCT declaration which includes the LEN 
+BYTE keywords.
+
+@return An 8-bit non modifiable pointer descriptor representing the data 
+following the leading byte count at the current position within the resource 
+buffer. */
+EXPORT_C TPtrC8 TResourceReader::ReadTPtrC8()
+	{
+	TPtrC8 retPtr;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retPtr.Set(ReadTPtrC8L ()));
+    UNUSED_VAR(errCode);
+	return retPtr;
+	}
+
+TPtrC8 TResourceReader::ReadTPtrC8L()
+	{
+	return Impl()->ReadTPtrC8L();
+	}
+
+
+/** Interprets the data at the current buffer position as leading byte count data 
+and constructs a 16 bit non modifiable pointer descriptor to represent this 
+data.
+
+The data is interpreted as:
+
+a byte value defining the number of 16 bit text characters
+(the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 16 bit text characters.
+
+If the value of the leading byte is zero, calling Length() on the returned 
+TPtrC16 returns zero.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Do not use this explicit 16-bit variant when the resource contains binary 
+data; use the explicit 8-bit variant instead. If the resource contains text, 
+use the build independent variant ReadTPtrC().
+
+@return A 16-bit non modifiable pointer descriptor representing the data 
+following the leading byte count at the current position within the resource 
+buffer. */
+EXPORT_C TPtrC16 TResourceReader::ReadTPtrC16()
+	{
+	TPtrC16 retPtr;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retPtr.Set(ReadTPtrC16L ()));
+    UNUSED_VAR(errCode);
+	return retPtr;
+	}
+
+TPtrC16 TResourceReader::ReadTPtrC16L()
+	{
+	return Impl()->ReadTPtrC16L();
+	}
+
+/** Interprets the data within the specified resource buffer as an array of leading 
+byte count data and constructs an 8 bit non modifiable pointer descriptor 
+to represent an element within this array.
+
+The function sets the buffer containing the resource data and sets the current 
+position to the start of this buffer. Any buffer set by a previous call to 
+SetBuffer() etc, is lost.
+
+The buffer is expected to contain an array of data elements preceded by a 
+TInt16 value defining the number of elements within that array.
+
+Each element of the array is interpreted as:
+
+a byte value defining the number of 8 bit text characters or the length of 
+binary data (the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 8 bit text characters or binary data.
+
+If the value of the leading byte is zero, calling Length() on the returned 
+TPtrC8 returns zero.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Use this explicit 8 bit variant when the resource contains binary data, If 
+the resource contains text, then use the build independent variant ReadTPtrC(TInt,const TDesC8*).
+
+@param aIndex The position of the element within the array. This value is 
+relative to zero.
+@param aBuffer The buffer containing the resource data.
+@return An 8-bit non modifiable pointer descriptor representing the data following 
+the leading byte count of the element at the specified position within the 
+array. */
+EXPORT_C TPtrC8 TResourceReader::ReadTPtrC8(TInt aIndex,const TDesC8* aBuffer)
+    {
+	TPtrC8 retPtr;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retPtr.Set(ReadTPtrC8L(aIndex, aBuffer)));
+    UNUSED_VAR(errCode);
+	return retPtr;
+    }
+
+TPtrC8 TResourceReader::ReadTPtrC8L(TInt aIndex,const TDesC8* aBuffer)
+    {
+	CreateImpl();
+	return Impl()->ReadTPtrC8L(aIndex,aBuffer);
+    }
+
+/** Interprets the data within the specified resource buffer as an array of leading 
+byte count data and constructs a 16 bit non modifiable pointer descriptor 
+to represent an element within this array.
+
+The function sets the buffer containing the resource data and sets the current 
+position to the start of this buffer. Any buffer set by a previous call to 
+SetBuffer() etc., is lost.
+
+The buffer is expected to contain an array of data elements preceded by a 
+TInt16 value defining the number of elements within that array.
+
+Each element of the array is interpreted as:
+
+a byte value defining the number of 8 bit text characters or the length of 
+binary data (the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 16 bit text characters.
+
+If the value of the leading byte is zero, calling Length() on the returned 
+TPtrC16 returns zero.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Do not use this explicit 16-bit variant when the resource contains binary 
+data; use the explicit 8-bit variant instead. If the resource contains text, 
+use the build independent variant ReadTPtrC(TInt,const TDesC8*).
+
+@param aIndex The position of the element within the array. This value is 
+relative to zero.
+@param aBuffer The buffer containing the resource data.
+@return A 16-bit non modifiable pointer descriptor representing the data following 
+the leading byte count of the element at position within the array */
+EXPORT_C TPtrC16 TResourceReader::ReadTPtrC16(TInt aIndex,const TDesC8* aBuffer)
+    {
+	TPtrC16 retPtr;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retPtr.Set(ReadTPtrC16L(aIndex, aBuffer)));
+    UNUSED_VAR(errCode);
+	return retPtr;
+    }
+
+TPtrC16 TResourceReader::ReadTPtrC16L(TInt aIndex,const TDesC8* aBuffer)
+    {
+	CreateImpl();
+	return Impl()->ReadTPtrC16L(aIndex,aBuffer);
+    }
+
+/** Interprets the data at the current buffer position as an array of leading byte 
+count data and constructs a flat array of 8 bit descriptors.
+
+Each descriptor in the descriptor array corresponds to an element of the resource 
+array.
+
+At the current buffer position, the buffer is expected to contain an array 
+of data elements preceded by a TInt16 value defining the number of elements 
+within that array.
+
+Each element of the array is interpreted as:
+
+a byte value defining the number of 8 bit text characters or the length of 
+binary data (the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the text characters or binary data.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Use this explicit 8-bit variant when the resource contains binary data. If 
+the elements of the resource array contain text, use the build independent 
+variant of ReadDesCArrayL().
+
+@return A pointer to an 8-bit variant flat descriptor array. */
+EXPORT_C CDesC8ArrayFlat* TResourceReader::ReadDesC8ArrayL()
+    {
+	return Impl()->ReadDesC8ArrayL();
+    }
+
+/** Interprets the data at the current buffer position as an array of leading byte 
+count data and constructs a flat array of 16 bit descriptors.
+
+Each descriptor in the descriptor array corresponds to an element of the resource 
+array.
+
+At the current buffer position, the buffer is expected to contain an array 
+of data elements preceded by a TInt16 value defining the number of elements 
+within that array.
+
+Each element of the array is interpreted as:
+
+a byte value defining the number of 8 bit text characters or the length of 
+binary data (the resource string/binary data length is limited to 255 characters max)
+
+followed by:
+
+the 16 bit text characters.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+Do not use this explicit 16-bit variant when the resource contains binary 
+data; use the explicit 8-bit variant instead. If the resource contains text, 
+use the build independent variant ReadDesCArrayL().
+
+@return A pointer to a 16-bit variant flat descriptor array. */
+EXPORT_C CDesC16ArrayFlat* TResourceReader::ReadDesC16ArrayL()
+    {
+	return Impl()->ReadDesC16ArrayL();
+    }
+
+/** Interprets the data at the current buffer position as a TInt8 type and returns 
+the value as a TInt.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TInt8 corresponds to a BYTE type in a resource STRUCT declaration.
+
+Note that in Symbian OS, a TInt is at least as big as a TInt8.
+
+@return The TInt8 value taken from the resource buffer. */
+EXPORT_C TInt TResourceReader::ReadInt8()
+    {
+	TInt retInt=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retInt=ReadInt8L());
+    UNUSED_VAR(errCode);
+	return retInt;
+    }
+
+TInt TResourceReader::ReadInt8L()
+    {
+	return Impl()->ReadInt8L();
+    }
+
+/** Interprets the data at the current buffer position as a TUint8 type and returns 
+the value as a TUint.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TUint8 corresponds to a BYTE type in a resource STRUCT declaration.
+
+Note that in Symbian OS, a TUint is at least as big as a TUint8.
+
+@return The TUint8 value taken from the resource buffer. */
+EXPORT_C TUint TResourceReader::ReadUint8()
+    {
+	TUint retInt=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retInt=ReadUint8L());
+    UNUSED_VAR(errCode);
+	return retInt;
+    }
+
+TUint TResourceReader::ReadUint8L()
+    {
+	return Impl()->ReadUint8L();
+    }
+
+/** Interprets the data at the current buffer position as a TInt16 type and returns 
+the value as a TInt.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TInt16 corresponds to a WORD type in a resource STRUCT declaration.
+
+Note that in Symbian OS, a TInt is at least as big as a TInt16.
+
+@return The TInt16 value taken from the resource buffer. */
+EXPORT_C TInt TResourceReader::ReadInt16()
+    {
+	TInt retInt=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retInt=ReadInt16L());
+    UNUSED_VAR(errCode);
+	return retInt;
+    }
+
+TInt TResourceReader::ReadInt16L()
+    {
+	return Impl()->ReadInt16L();
+    }
+
+/** Interprets the data at the current buffer position as a TUint16 type and returns 
+the value as a TUint.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TUint16 corresponds to a WORD type in a resource STRUCT declaration.
+
+Note that in Symbian OS, a TUint is at least as big as a TUint16.
+
+@return The TUint16 value taken from the resource buffer. */
+EXPORT_C TUint TResourceReader::ReadUint16()
+    {
+	TUint retInt=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retInt=ReadUint16L());
+    UNUSED_VAR(errCode);
+	return retInt;
+    }
+
+TUint TResourceReader::ReadUint16L()
+    {
+	return Impl()->ReadUint16L();
+    }
+
+/** Interprets the data at the current buffer position as a TInt32 type and returns 
+the value as a TInt.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TInt32 corresponds to a LONG type in a resource STRUCT declaration.
+
+Note that in Symbian OS, TInt and TInt32 are the same size.
+
+@return The TInt32 value taken from the resource buffer. */
+EXPORT_C TInt TResourceReader::ReadInt32()
+    {
+	TInt retInt=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retInt=ReadInt32L());
+    UNUSED_VAR(errCode);
+	return retInt;
+    }
+
+TInt TResourceReader::ReadInt32L()
+    {
+	return Impl()->ReadInt32L();
+    }
+
+/** Interprets the data at the current buffer position as a TUint32 type and returns 
+the value as a TUint.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TUint32 corresponds to a LONG type in a resource STRUCT declaration.
+
+Note that in Symbian OS a TUint is the same size as a TUint32.
+
+@return The TUint32 value taken from the resource buffer. */
+EXPORT_C TUint TResourceReader::ReadUint32()
+    {
+	TUint retInt=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retInt=ReadUint32L());
+    UNUSED_VAR(errCode);
+	return retInt;
+    }
+
+TUint TResourceReader::ReadUint32L()
+    {
+	return Impl()->ReadUint32L();
+    }
+
+/** Interprets the data at the current buffer position as a TReal64 type and returns 
+the value as a TReal64.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+In general, a TReal64 corresponds to a DOUBLE type in a resource STRUCT declaration.
+
+@return The TReal64 value taken from the resource buffer. */
+EXPORT_C TReal64 TResourceReader::ReadReal64() __SOFTFP
+    {
+	TReal64 retReal=0;
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, retReal=ReadReal64L());
+    UNUSED_VAR(errCode);
+	return retReal;
+    }
+
+TReal64 TResourceReader::ReadReal64L() __SOFTFP
+    {
+	return Impl()->ReadReal64L();
+    }
+
+/** Copies a specified length of data from the resource buffer, starting at the 
+current position within the buffer, into the location pointed to by a specified 
+pointer. No assumption is made about the type of data at being read.
+
+The current position within the resource buffer is updated. If the resulting 
+position lies beyond the end of the resource buffer, then the function raises 
+a BAFL 4 panic.
+
+@param aPtr A pointer to the target location for data copied from the resource 
+buffer.
+@param aLength The length of data to be copied from the resource buffer. */
+EXPORT_C void TResourceReader::Read(TAny* aPtr,TInt aLength)
+    {
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, Impl()->ReadL(aPtr,aLength));
+    UNUSED_VAR(errCode);
+    }
+
+/** Moves the current buffer position backwards by the specified amount.
+
+If the resulting position lies before the start of the resource buffer, then 
+the function raises a BAFL 5 panic.
+
+@param aLength The length by which the current position is to be moved backward. */
+EXPORT_C void TResourceReader::Rewind(TInt aLength)
+    {
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, Impl()->RewindL(aLength));
+    UNUSED_VAR(errCode);
+    }
+
+/** Moves the current buffer position forwards by the specified amount.
+
+If the resulting position lies beyond the end of the resource buffer, then 
+the function raises a BAFL 4 panic.
+
+@param aLength The length by which the current position is to be advanced. */
+EXPORT_C void TResourceReader::Advance(TInt aLength)
+	{
+	// TRAP and ignore the Error code as its non leaving method
+	TRAPD(errCode, Impl()->AdvanceL(aLength));
+    UNUSED_VAR(errCode);
+	}
+
+/** Placement new operator is used TResourceReaderImpl instance to be created.
+TResourceReaderImpl instance default behaviour - it will panic when there is a problem.
+
+@internalComponent */
+void TResourceReader::CreateImpl()
+	{
+	new (iImpl) TResourceReaderImpl;
+	}
+
+/** Placement new operator is used TResourceReaderImpl instance to be created.
+TResourceReaderImpl instance default behaviour - it will panic when there is a problem.
+
+@internalComponent */
+TResourceReaderImpl* TResourceReader::Impl()
+	{
+	return reinterpret_cast <TResourceReaderImpl*> (iImpl);
+	}
+
+/** The method returns a const pointer to TResourceReader implementation.
+
+@internalComponent */
+const TResourceReaderImpl* TResourceReader::Impl() const
+	{
+	return reinterpret_cast <const TResourceReaderImpl*> (iImpl);
+	}
+