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140 lines
4.1 KiB
140 lines
4.1 KiB
/*
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* Copyright (C) 2015-2022 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Merger.h"
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#include "Parser.h"
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#include "OverlayDocumentParser.h"
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#include "Exception.h"
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#include <map>
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#include <iostream>
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#include "core/memcheck.h"
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using namespace merge_lib;
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Parser Merger::_parser;
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Merger::Merger():_baseDocuments(),_overlayDocument(0)
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{
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}
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Merger::~Merger()
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{
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std::map<std::string, Document *>::iterator docIterator = _baseDocuments.begin();
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for(; docIterator != _baseDocuments.end(); ++docIterator)
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{
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delete (*docIterator).second;
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}
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if( _overlayDocument )
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{
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delete _overlayDocument;
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_overlayDocument = 0;
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}
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_baseDocuments.clear();
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}
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void Merger::addBaseDocument(const char * docName)
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{
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//if docName has been already opened then do nothing
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if(_baseDocuments.count(docName))
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return;
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Document * newBaseDoc = _parser.parseDocument(docName);
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_baseDocuments.insert(std::pair<std::string, Document *>(docName, newBaseDoc));
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}
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void Merger::addOverlayDocument(const char * docName)
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{
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if( _overlayDocument )
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{
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delete _overlayDocument;
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_overlayDocument = 0;
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}
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if( !_overlayDocument )
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{
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OverlayDocumentParser overlayDocParser;
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_overlayDocument = overlayDocParser.parseDocument(docName);
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if( !_overlayDocument )
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{
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throw Exception("Error loading overlay document!");
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}
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}
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}
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// The main method which performs the merge
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void Merger::merge(const char * overlayDocName, const MergeDescription & pagesToMerge)
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{
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if( !_overlayDocument)
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{
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addOverlayDocument(overlayDocName);
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if( !_overlayDocument )
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{
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throw Exception("Error loading overlay document!");
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}
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}
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MergeDescription::const_iterator pageIterator = pagesToMerge.begin();
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for(; pageIterator != pagesToMerge.end(); ++pageIterator )
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{
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Page * destinationPage = _overlayDocument->getPage( (*pageIterator).overlayPageNumber);
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if( destinationPage == 0 )
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{
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std::stringstream error;
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error << "There is no page with " << (*pageIterator).overlayPageNumber <<
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" number in " << overlayDocName;
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throw Exception(error);
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}
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Document * sourceDocument = _baseDocuments[(*pageIterator).baseDocumentName];
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Page * sourcePage = (sourceDocument == 0)? 0 : sourceDocument->getPage((*pageIterator).basePageNumber);
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bool isPageDuplicated = false;
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if( sourcePage )
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{
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unsigned int howManyTimesPageFound(0);
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for(size_t i = 0; i < pagesToMerge.size(); ++i)
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{
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if(pagesToMerge[i].basePageNumber == (*pageIterator).basePageNumber)
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++howManyTimesPageFound;
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if(howManyTimesPageFound == 2)
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break;
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}
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isPageDuplicated = (2 == howManyTimesPageFound) ? true : false;
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}
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destinationPage->merge(sourcePage, _overlayDocument, const_cast<MergePageDescription&>((*pageIterator)), isPageDuplicated);
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}
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}
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// Method performs saving of merged documents into selected file
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void Merger::saveMergedDocumentsAs(const char * outDocumentName)
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{
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_overlayDocument->saveAs(outDocumentName);
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}
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