You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
4.0 KiB
135 lines
4.0 KiB
/*
|
|
* Copyright (C) 2015-2022 Département de l'Instruction Publique (DIP-SEM)
|
|
*
|
|
* Copyright (C) 2013 Open Education Foundation
|
|
*
|
|
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
|
|
* l'Education Numérique en Afrique (GIP ENA)
|
|
*
|
|
* This file is part of OpenBoard.
|
|
*
|
|
* OpenBoard is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, version 3 of the License,
|
|
* with a specific linking exception for the OpenSSL project's
|
|
* "OpenSSL" library (or with modified versions of it that use the
|
|
* same license as the "OpenSSL" library).
|
|
*
|
|
* OpenBoard 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "Config.h"
|
|
#include "Document.h"
|
|
#include "FlateDecode.h"
|
|
#include "Utils.h"
|
|
#include "Parser.h"
|
|
#include "Exception.h"
|
|
#include <fstream>
|
|
#include <iostream>
|
|
#include <iomanip>
|
|
|
|
#include "core/memcheck.h"
|
|
|
|
using namespace merge_lib;
|
|
const std::string firstObj("%PDF-1.4\n1 0 obj\n<<\n/Title ()/Creator ()/Producer (Qt 4.5.0 (C) 1992-2009 Nokia Corporation and/or its subsidiary(-ies))/CreationDate (D:20090424120829)\n>>\nendobj\n");
|
|
const std::string zeroStr("0000000000");
|
|
Document::Document(const char * fileName):
|
|
_root(0), _pages(), _documentName(fileName), _maxObjectNumber(0)
|
|
{
|
|
|
|
}
|
|
|
|
Document::~Document()
|
|
{
|
|
for(size_t i = 0; i < _allObjects.size(); ++i)
|
|
delete _allObjects[i];
|
|
_allObjects.clear();
|
|
|
|
std::map<unsigned int, Page *>::const_iterator it(_pages.begin());
|
|
for(;it != _pages.end();it++)
|
|
{
|
|
delete (*it).second;
|
|
}
|
|
_pages.clear();
|
|
}
|
|
|
|
|
|
Page * Document::getPage(unsigned int pageNumber)
|
|
{
|
|
if(!_pages.count(pageNumber))
|
|
{
|
|
return 0;
|
|
/* std::stringstream error;
|
|
error << "There is no page with "
|
|
<< pageNumber << " number in "
|
|
<< _documentName;
|
|
throw Exception(error);*/
|
|
}
|
|
return _pages[pageNumber];
|
|
}
|
|
|
|
void Document::saveAs(const char * newFileName)
|
|
{
|
|
//first two objects will be created by hand
|
|
unsigned int fromObjNumber = 2;
|
|
_root->recalculateObjectNumbers(fromObjNumber);
|
|
_root->retrieveMaxObjectNumber(_maxObjectNumber);
|
|
|
|
//sizes of all objects
|
|
//key - object number
|
|
//value - size of object
|
|
std :: map < unsigned int, std::pair<unsigned long long, unsigned int > > sizesAndGenerationNumbers;
|
|
std::ofstream out;
|
|
out.open(newFileName, std::ios::binary);
|
|
if(!out.is_open())
|
|
{
|
|
std::string error("Access denied on file ");
|
|
error.append(newFileName);
|
|
throw Exception(error);
|
|
}
|
|
|
|
out << firstObj.c_str();
|
|
_root->serialize( out, sizesAndGenerationNumbers);
|
|
|
|
std::map< unsigned int, std::pair<unsigned long long, unsigned int > >::iterator sizeIterator;
|
|
|
|
unsigned int numberOfObjects = 2;
|
|
for ( sizeIterator = sizesAndGenerationNumbers.begin() ; sizeIterator != sizesAndGenerationNumbers.end(); sizeIterator++ )
|
|
{
|
|
numberOfObjects++;
|
|
}
|
|
|
|
//create xref
|
|
out << "xref\n"
|
|
<< "0 " << numberOfObjects << "\n"
|
|
<< "0000000000 65535 f \n"
|
|
<< "0000000009 00000 n \n";
|
|
|
|
|
|
unsigned long long sizeInXref = firstObj.size();
|
|
|
|
for ( sizeIterator = sizesAndGenerationNumbers.begin() ; sizeIterator != sizesAndGenerationNumbers.end(); sizeIterator++ )
|
|
{
|
|
out << std::setfill('0')<<std::setw(10)<<sizeInXref << " " << std::setw(5) << (*sizeIterator).second.second << " n \n";
|
|
sizeInXref = sizeInXref + (*sizeIterator).second.first;
|
|
}
|
|
out << "trailer\n<<\n/Size " << numberOfObjects << "\n/Info 1 0 R\n"
|
|
<< "/Root " << _root->getObjectNumber() << " 0 R\n >>\nstartxref\n" << sizeInXref << "\n%%EOF";
|
|
|
|
}
|
|
|
|
Object * Document::getDocumentObject()
|
|
{
|
|
return _root;
|
|
}
|
|
|
|
|
|
|