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#if !defined RotationHandler_h
#define RotationHandler_h
#include "PageElementHandler.h"
#include "Page.h"
namespace merge_lib
{
//This class remove field from Page object's content.
class RotationHandler: public PageElementHandler
{
public:
RotationHandler(Object * page, const std::string & handlerName, Page & basePage):
PageElementHandler(page),
_basePage(basePage)
{
_setHandlerName(handlerName);
}
virtual ~RotationHandler()
{
}
private:
//methods
virtual void _processObjectContent(unsigned int startOfPageElement)
{
unsigned int endOfElement = _findEndOfElementContent(startOfPageElement);
std::string rotationField = _page->getObjectContent().substr(startOfPageElement, endOfElement - startOfPageElement);
std::string numbers("1234567890");
unsigned int startOfNumber = rotationField.find_first_of(numbers);
if( startOfNumber > 0 )
{
if( rotationField[startOfNumber-1] == '-' )
{
startOfNumber--; // negative number
}
}
unsigned int endOfNumber = rotationField.find_first_not_of(numbers, startOfNumber + 1);
std::string rotationStr = rotationField.substr(startOfNumber, endOfNumber - startOfNumber + 1);
int rotation = 0;
std::stringstream strin(rotationStr);
strin>>rotation;
_basePage.setRotation(rotation);
}
virtual void _changeObjectContent(unsigned int startOfPageElement) {};
//members
Page & _basePage;
};
}
#endif