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/*
* This program 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, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined MediaBoxElementHandler_h
#define MediaBoxElementHandler_h
#include "AbstractBoxElementHandler.h"
#include "RemoveHimSelfHandler.h"
#include <memory>
namespace merge_lib
{
//class for processing MediaBox field of Page object
class MediaBoxElementHandler: public AbstractBoxElementHandler
{
public:
MediaBoxElementHandler(Object * page): AbstractBoxElementHandler(page)
{
_setHandlerName("/MediaBox");
}
virtual ~MediaBoxElementHandler()
{
}
private:
//replace MediaBox with BBox
virtual void _changeObjectContent(unsigned int startOfPageElement)
{
if(_wasCropBoxHandlerCalled())
{
PageElementHandler * tempNextHandler = _nextHandler;
_nextHandler = new RemoveHimselfHandler(_page, _handlerName);
_nextHandler->addNextHandler(tempNextHandler);
return;
}
_page->eraseContent(startOfPageElement, _handlerName.size());
static std::string bbox("/BBox");
static std::string matrix("/Matrix [ 1 0 0 1 0 0 ]\n");
_page->insertToContent(startOfPageElement, bbox);
_page->insertToContent(startOfPageElement, matrix);
}
void _pageElementNotFound()
{
if(_wasCropBoxHandlerCalled())
return;
_retrieveBoxFromParent();
}
bool _wasCropBoxHandlerCalled()
{
return (_page->getObjectContent().find("/BBox") != std::string::npos) ? true : false;
}
};
}
#endif