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/* libpict
* Copyright (C) 2011 Fridrich Strba (fridrich.strba@bluewin.ch)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02111-1301 USA
*/
#include <sstream>
#include <librevenge/librevenge.h>
#include <libpict/libpict.h>
#include "PictHeader.h"
#include "PictXParser.h"
#include "Pict1Parser.h"
#include "Pict2Parser.h"
#include "libpict_utils.h"
/**
Analyzes the content of an input stream to see if it can be parsed
\param input The input stream
\return A value that indicates whether the content from the input
stream is a Macintosh Pict Image that libpict is able to parse
*/
bool libpict::PictImage::isSupported(librevenge::RVNGInputStream *input)
{
input->seek(0, librevenge::RVNG_SEEK_SET);
PictHeader header;
if (!header.load(input))
return false;
return true;
}
/**
Parses the input stream content. It will make callbacks to the functions provided by a
librevenge::RVNGDrawingInterface class implementation when needed. This is often commonly called the
'main parsing routine'.
\param input The input stream
\param painter A librevenge::RVNGDrawingInterface implementation
\return A value that indicates whether the parsing was successful
*/
bool libpict::PictImage::parse(librevenge::RVNGInputStream *input, librevenge::RVNGDrawingInterface *painter)
{
PictXParser *parser = 0;
input->seek(0, librevenge::RVNG_SEEK_SET);
PICT_DEBUG_MSG(("Loading header...\n"));
PictHeader header;
if (!header.load(input))
return false;
// seek to the start of document
input->seek(header.startOfDocument(), librevenge::RVNG_SEEK_SET);
unsigned char tmpVersion = header.getVersion();
bool retval;
switch (tmpVersion)
{
case 0x01: // Pict1
PICT_DEBUG_MSG(("Parsing Pict1\n"));
parser = new Pict1Parser(input, painter);
retval = parser->parse();
break;
case 0x02: // Pict2
PICT_DEBUG_MSG(("Parsing Pict2\n"));
parser = new Pict2Parser(input, painter);
retval = parser->parse();
break;
default: // other :-)
PICT_DEBUG_MSG(("Unknown format\n"));
return false;
}
if (parser)
delete parser;
return retval;
}
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