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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _MSVBASIC_HXX
#define _MSVBASIC_HXX
#ifdef _SOLAR_H
#include <tools/solar.h>
#endif
#include <tools/debug.hxx>
#include <sot/storage.hxx>
/* class VBA:
* The VBA class provides a set of methods to handle Visual Basic For
* Applications streams, the constructor is given the root ole2 stream
* of the document, Open reads the VBA project file and figures out
* the number of VBA streams, and the offset of the data within them.
* Decompress decompresses a particular numbered stream, NoStreams returns
* this number, and StreamName can give you the streams name. Decompress
* will return a string with the decompressed data. The optional extra
* argument will be set if not NULL to 1 in the case of a string overflow,
* if I can figure out how to do that.
*
* Otherwise it is possible to inherit from VBA and implement a Output
* member which gets called with each 4096 output sized block.
*
* cmc
* */
#define WINDOWLEN 4096
class VBA_Impl
{
public:
VBA_Impl( SvStorage &rIn, BOOL bCmmntd = TRUE )
: xStor(&rIn), pOffsets(0), nOffsets(0), bCommented(bCmmntd)
{}
~VBA_Impl() {if (nOffsets) delete [] pOffsets;}
//0 for failure, 1 for success
BOOL Open( const String &rToplevel, const String &rSublevel);
const String & Decompress( UINT16 nIndex, int *pOverflow=0);
UINT16 GetNoStreams() const { return nOffsets; }
const String &GetStreamName( UINT16 nIndex ) const
{
DBG_ASSERT( nIndex < nOffsets, "Index out of range" );
return pOffsets[ nIndex ].sName;
}
virtual void Output(int len,const BYTE *data);
private:
struct VBAOffset_Impl
{
String sName;
UINT32 nOffset;
};
SvStorageRef xVBA;
String sVBAString;
SvStorageRef xStor;
VBAOffset_Impl *pOffsets;
UINT16 nOffsets;
BYTE aHistory[ WINDOWLEN ];
BOOL bCommented;
//0 for failure, anything else for success
int ReadVBAProject(const SvStorageRef &rxVBAStorage);
int DecompressVBA(int index, SvStorageStreamRef &rxVBAStream);
void Confirm12Zeros(SvStorageStreamRef &xVBAProject);
void ConfirmHalfWayMarker(SvStorageStreamRef &xVBAProject);
void ConfirmFixedMiddle(SvStorageStreamRef &xVBAProject);
void ConfirmFixedMiddle2(SvStorageStreamRef &xVBAProject);
void ConfirmFixedOctect(SvStorageStreamRef &xVBAProject);
BYTE ReadPString(SvStorageStreamRef &xVBAProject);
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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