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81 lines
2.5 KiB
81 lines
2.5 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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#if !defined MediaBoxElementHandler_h
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#define MediaBoxElementHandler_h
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#include "AbstractBoxElementHandler.h"
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#include "RemoveHimSelfHandler.h"
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#include <memory>
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namespace merge_lib
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{
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//class for processing MediaBox field of Page object
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class MediaBoxElementHandler: public AbstractBoxElementHandler
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{
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public:
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MediaBoxElementHandler(Object * page): AbstractBoxElementHandler(page)
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{
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_setHandlerName("/MediaBox");
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}
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virtual ~MediaBoxElementHandler()
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{
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}
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private:
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//replace MediaBox with BBox
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virtual void _changeObjectContent(unsigned int startOfPageElement)
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{
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if(_wasCropBoxHandlerCalled())
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{
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PageElementHandler * tempNextHandler = _nextHandler;
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_nextHandler = new RemoveHimselfHandler(_page, _handlerName);
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_nextHandler->addNextHandler(tempNextHandler);
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return;
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}
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_page->eraseContent(startOfPageElement, _handlerName.size());
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static std::string bbox("/BBox");
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static std::string matrix("/Matrix [ 1 0 0 1 0 0 ]\n");
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_page->insertToContent(startOfPageElement, bbox);
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_page->insertToContent(startOfPageElement, matrix);
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}
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void _pageElementNotFound()
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{
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if(_wasCropBoxHandlerCalled())
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return;
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_retrieveBoxFromParent();
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}
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bool _wasCropBoxHandlerCalled()
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{
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return ((int)_page->getObjectContent().find("/BBox") != -1) ? true : false;
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}
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};
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}
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#endif
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