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109 lines
3.1 KiB
109 lines
3.1 KiB
/////////////////////////////////////////////////////////// |
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// Document.cpp |
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// Implementation of the Class Document |
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// Created on: 19-?????????-2009 12:27:55 |
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/////////////////////////////////////////////////////////// |
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#include "Config.h" |
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#include "Document.h" |
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#include "FlateDecode.h" |
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#include "Utils.h" |
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#include "Parser.h" |
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#include "Exception.h" |
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#include <fstream> |
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#include <iostream> |
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#include <iomanip> |
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using namespace merge_lib; |
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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"); |
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const std::string zeroStr("0000000000"); |
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Document::Document(const char * fileName): _pages(), _maxObjectNumber(0),_root(0),_documentName(fileName) |
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{ |
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} |
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Document::~Document() |
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{ |
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for(size_t i = 0; i < _allObjects.size(); ++i) |
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delete _allObjects[i]; |
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_allObjects.clear(); |
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std::map<unsigned int, Page *>::const_iterator it(_pages.begin()); |
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for(;it != _pages.end();it++) |
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{ |
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delete (*it).second; |
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} |
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_pages.clear(); |
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} |
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Page * Document::getPage(unsigned int pageNumber) |
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{ |
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if(!_pages.count(pageNumber)) |
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{ |
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return 0; |
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/* std::stringstream error; |
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error << "There is no page with " |
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<< pageNumber << " number in " |
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<< _documentName; |
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throw Exception(error);*/ |
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} |
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return _pages[pageNumber]; |
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} |
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void Document::saveAs(const char * newFileName) |
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{ |
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//first two objects will be created by hand |
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unsigned int fromObjNumber = 2; |
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_root->recalculateObjectNumbers(fromObjNumber); |
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_root->retrieveMaxObjectNumber(_maxObjectNumber); |
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//sizes of all objects |
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//key - object number |
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//value - size of object |
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std :: map < unsigned int, std::pair<unsigned long long, unsigned int > > sizesAndGenerationNumbers; |
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std::ofstream out; |
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out.open(newFileName, std::ios::binary); |
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if(!out.is_open()) |
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{ |
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std::string error("Access denied on file "); |
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error.append(newFileName); |
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throw Exception(error); |
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} |
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out << firstObj.c_str(); |
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_root->serialize( out, sizesAndGenerationNumbers); |
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std::map< unsigned int, std::pair<unsigned long long, unsigned int > >::iterator sizeIterator; |
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unsigned int numberOfObjects = 2; |
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for ( sizeIterator = sizesAndGenerationNumbers.begin() ; sizeIterator != sizesAndGenerationNumbers.end(); sizeIterator++ ) |
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{ |
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numberOfObjects++; |
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} |
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//create xref |
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out << "xref\n" |
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<< "0 " << numberOfObjects << "\n" |
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<< "0000000000 65535 f \n" |
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<< "0000000009 00000 n \n"; |
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unsigned long long sizeInXref = firstObj.size(); |
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for ( sizeIterator = sizesAndGenerationNumbers.begin() ; sizeIterator != sizesAndGenerationNumbers.end(); sizeIterator++ ) |
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{ |
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out << std::setfill('0')<<std::setw(10)<<sizeInXref << " " << std::setw(5) << (*sizeIterator).second.second << " n \n"; |
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sizeInXref = sizeInXref + (*sizeIterator).second.first; |
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} |
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out << "trailer\n<<\n/Size " << numberOfObjects << "\n/Info 1 0 R\n" |
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<< "/Root " << _root->getObjectNumber() << " 0 R\n >>\nstartxref\n" << sizeInXref << "\n%%EOF"; |
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} |
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Object * Document::getDocumentObject() |
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{ |
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return _root; |
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} |
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