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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* libvisio
* Version: MPL 1.1 / GPLv2+ / LGPLv2+
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License or as specified alternatively below. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Major Contributor(s):
* Copyright (C) 2011 Fridrich Strba <fridrich.strba@bluewin.ch>
* Copyright (C) 2011 Eilidh McAdam <tibbylickle@gmail.com>
*
*
* All Rights Reserved.
*
* For minor contributions see the git repository.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPLv2+"), or
* the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
* in which case the provisions of the GPLv2+ or the LGPLv2+ are applicable
* instead of those above.
*/
#include <libwpd-stream/libwpd-stream.h>
#include <locale.h>
#include <sstream>
#include <string>
#include "libvisio_utils.h"
#include "VSD5Parser.h"
#include "VSDInternalStream.h"
#include "VSDDocumentStructure.h"
#include "VSDContentCollector.h"
#include "VSDStylesCollector.h"
libvisio::VSD5Parser::VSD5Parser(WPXInputStream *input, libwpg::WPGPaintInterface *painter)
: VSD6Parser(input, painter)
{}
libvisio::VSD5Parser::~VSD5Parser()
{}
void libvisio::VSD5Parser::readPointer(WPXInputStream *input, Pointer &ptr)
{
ptr.Type = readU16(input) & 0x00ff;
ptr.Format = readU16(input) & 0x00ff;
input->seek(4, WPX_SEEK_CUR); // Skip dword
ptr.Offset = readU32(input);
ptr.Length = readU32(input);
}
void libvisio::VSD5Parser::readPointerInfo(WPXInputStream *input, unsigned ptrType, unsigned shift, unsigned & /*listSize*/, unsigned &pointerCount)
{
VSD_DEBUG_MSG(("VSD5Parser::readPointerInfo\n"));
switch (ptrType)
{
case VSD_TRAILER_STREAM:
input->seek(shift+0x82, WPX_SEEK_SET);
break;
case VSD_PAGE:
input->seek(shift+0x42, WPX_SEEK_SET);
break;
case VSD_FONT_LIST:
input->seek(shift+0x2e, WPX_SEEK_SET);
break;
case VSD_STYLES:
input->seek(shift+0x12, WPX_SEEK_SET);
break;
case VSD_STENCILS:
input->seek(shift+0x1e, WPX_SEEK_SET);
break;
case VSD_STENCIL_PAGE:
input->seek(shift+0x36, WPX_SEEK_SET);
break;
default:
input->seek(shift+0xa, WPX_SEEK_SET);
break;
}
pointerCount = readU16(input);
VSD_DEBUG_MSG(("VSD5Parser::readPointerInfo ptrType %u shift %u pointerCount 0x%x\n", ptrType, shift, pointerCount));
}
bool libvisio::VSD5Parser::getChunkHeader(WPXInputStream *input)
{
unsigned char tmpChar = 0;
while (!input->atEOS() && !tmpChar)
tmpChar = readU8(input);
if (input->atEOS())
return false;
else
input->seek(-1, WPX_SEEK_CUR);
m_header.chunkType = readU16(input);
if (!m_header.chunkType)
input->seek(10, WPX_SEEK_CUR);
m_header.id = readU16(input);
m_header.level = readU8(input);
m_header.unknown = readU8(input);
m_header.trailer = 0;
m_header.list = readU16(input);
m_header.dataLength = readU32(input);
return true;
}
void libvisio::VSD5Parser::handleChunks(WPXInputStream *input, unsigned level)
{
long endPos = 0;
while (!input->atEOS())
{
getChunkHeader(input);
m_header.level += level;
endPos = m_header.dataLength+m_header.trailer+input->tell();
_handleLevelChange(m_header.level);
VSD_DEBUG_MSG(("VSD5Parser::handleChunks - parsing chunk type 0x%x\n", m_header.chunkType));
handleChunk(input);
input->seek(endPos, WPX_SEEK_SET);
}
}
/* vim:set shiftwidth=2 softtabstop=2 expandtab: */
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