/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"
#ifndef GCC
#endif
#include <tools/debug.hxx>

#include "numhead.hxx"

//		ID's fuer Dateien:
#define SV_NUMID_SIZES						0x4200

// STATIC DATA -----------------------------------------------------------

//SEG_EOFGLOBALS()

// =======================================================================
/*								wird fuer SvNumberformatter nicht gebraucht
//#pragma SEG_FUNCDEF(numhead_01)

SvNumReadHeader::SvNumReadHeader(SvStream& rNewStream) :
	rStream( rNewStream )
{
	sal_uLong nDataSize;
	rStream >> nDataSize;
	nDataEnd = rStream.Tell() + nDataSize;
}

//#pragma SEG_FUNCDEF(numhead_02)

SvNumReadHeader::~SvNumReadHeader()
{
	sal_uLong nReadEnd = rStream.Tell();
	DBG_ASSERT( nReadEnd <= nDataEnd, "zuviele Bytes gelesen" );
	if ( nReadEnd != nDataEnd )
		rStream.Seek(nDataEnd); 					// Rest ueberspringen
}

//#pragma SEG_FUNCDEF(numhead_03)

sal_uLong SvNumReadHeader::BytesLeft() const
{
	sal_uLong nReadEnd = rStream.Tell();
	if (nReadEnd <= nDataEnd)
		return nDataEnd-nReadEnd;

	DBG_ERROR("Fehler bei SvNumReadHeader::BytesLeft");
	return 0;
}

// -----------------------------------------------------------------------

//#pragma SEG_FUNCDEF(numhead_04)

SvNumWriteHeader::SvNumWriteHeader(SvStream& rNewStream, sal_uLong nDefault) :
	rStream( rNewStream )
{
	nDataSize = nDefault;
	rStream << nDataSize;
	nDataPos = rStream.Tell();
}

//#pragma SEG_FUNCDEF(numhead_05)

SvNumWriteHeader::~SvNumWriteHeader()
{
	sal_uLong nPos = rStream.Tell();

	if ( nPos - nDataPos != nDataSize )				// Default getroffen?
	{
		nDataSize = nPos - nDataPos;
		rStream.Seek(nDataPos - sizeof(sal_uInt32));
		rStream << nDataSize;						// Groesse am Anfang eintragen
		rStream.Seek(nPos);
	}
}
*/

// =======================================================================

//#pragma SEG_FUNCDEF(numhead_06)

//! mit Skip() synchron
ImpSvNumMultipleReadHeader::ImpSvNumMultipleReadHeader(SvStream& rNewStream) :
	rStream( rNewStream )
{
	sal_uInt32 nDataSize;
	rStream >> nDataSize;
	sal_uLong nDataPos = rStream.Tell();
	nEntryEnd = nDataPos;

	rStream.SeekRel(nDataSize);
	sal_uInt16 nID;
	rStream >> nID;
	if (nID != SV_NUMID_SIZES)
	{
		DBG_ERROR("SV_NUMID_SIZES nicht gefunden");
	}
	sal_uInt32 nSizeTableLen;
	rStream >> nSizeTableLen;
	pBuf = new char[nSizeTableLen];
	rStream.Read( pBuf, nSizeTableLen );
	pMemStream = new SvMemoryStream( pBuf, nSizeTableLen, STREAM_READ );

	nEndPos = rStream.Tell();
	rStream.Seek( nDataPos );
}

//#pragma SEG_FUNCDEF(numhead_07)

ImpSvNumMultipleReadHeader::~ImpSvNumMultipleReadHeader()
{
    DBG_ASSERT( pMemStream->Tell() == pMemStream->GetEndOfData(),
				"Sizes nicht vollstaendig gelesen" );
	delete pMemStream;
	delete [] pBuf;

	rStream.Seek(nEndPos);
}

//! mit ctor synchron
// static
void ImpSvNumMultipleReadHeader::Skip( SvStream& rStream )
{
	sal_uInt32 nDataSize;
	rStream >> nDataSize;
	rStream.SeekRel( nDataSize );
	sal_uInt16 nID;
	rStream >> nID;
	if ( nID != SV_NUMID_SIZES )
	{
		DBG_ERROR("SV_NUMID_SIZES nicht gefunden");
	}
	sal_uInt32 nSizeTableLen;
	rStream >> nSizeTableLen;
	rStream.SeekRel( nSizeTableLen );
}

//#pragma SEG_FUNCDEF(numhead_08)

void ImpSvNumMultipleReadHeader::EndEntry()
{
	sal_uLong nPos = rStream.Tell();
	DBG_ASSERT( nPos <= nEntryEnd, "zuviel gelesen" );
	if ( nPos != nEntryEnd )
		rStream.Seek( nEntryEnd );			// Rest ueberspringen
}

//#pragma SEG_FUNCDEF(numhead_0d)

void ImpSvNumMultipleReadHeader::StartEntry()
{
	sal_uLong nPos = rStream.Tell();
	sal_uInt32 nEntrySize;
	(*pMemStream) >> nEntrySize;

	nEntryEnd = nPos + nEntrySize;
}

//#pragma SEG_FUNCDEF(numhead_09)

sal_uLong ImpSvNumMultipleReadHeader::BytesLeft() const
{
	sal_uLong nReadEnd = rStream.Tell();
	if (nReadEnd <= nEntryEnd)
		return nEntryEnd-nReadEnd;

	DBG_ERROR("Fehler bei ImpSvNumMultipleReadHeader::BytesLeft");
	return 0;
}

// -----------------------------------------------------------------------

//#pragma SEG_FUNCDEF(numhead_0a)

ImpSvNumMultipleWriteHeader::ImpSvNumMultipleWriteHeader(SvStream& rNewStream,
												   sal_uLong nDefault) :
	rStream( rNewStream ),
	aMemStream( 4096, 4096 )
{
	nDataSize = nDefault;
	rStream << nDataSize;

	nDataPos = rStream.Tell();
	nEntryStart = nDataPos;
}

//#pragma SEG_FUNCDEF(numhead_0b)

ImpSvNumMultipleWriteHeader::~ImpSvNumMultipleWriteHeader()
{
	sal_uLong nDataEnd = rStream.Tell();

	rStream << (sal_uInt16) SV_NUMID_SIZES;
	rStream << static_cast<sal_uInt32>(aMemStream.Tell());
	rStream.Write( aMemStream.GetData(), aMemStream.Tell() );

	if ( nDataEnd - nDataPos != nDataSize )					// Default getroffen?
	{
		nDataSize = nDataEnd - nDataPos;
		sal_uLong nPos = rStream.Tell();
		rStream.Seek(nDataPos-sizeof(sal_uInt32));
		rStream << nDataSize;								// Groesse am Anfang eintragen
		rStream.Seek(nPos);
	}
}

//#pragma SEG_FUNCDEF(numhead_0c)

void ImpSvNumMultipleWriteHeader::EndEntry()
{
	sal_uLong nPos = rStream.Tell();
	aMemStream << static_cast<sal_uInt32>(nPos - nEntryStart);
}

//#pragma SEG_FUNCDEF(numhead_0e)

void ImpSvNumMultipleWriteHeader::StartEntry()
{
	sal_uLong nPos = rStream.Tell();
	nEntryStart = nPos;
}