iPrinterList.h

#pragma once
 
#include <boost/system/error_code.hpp>
#include <list>
 
#include "iPrinter.h"
 
namespace dpyPrinter {
 
typedef enum
{
    ADDED = 0, 
    REMOVED = 1, 
} ListEvent;
 
class ListObserver
{
public:
    virtual void listEvent(boost::shared_ptr<IPrinter> printer, dpyPrinter::ListEvent event) = 0;
 
    virtual ~ListObserver()
    {
    }
};
 
}
 
class IPrinterList
{
private:
    std::vector<dpyPrinter::ListObserver*> mObserversList;
protected:
    virtual ~IPrinterList();
    boost::system::error_code subscribe(dpyPrinter::ListObserver* observer);
    boost::system::error_code unsubscribe(dpyPrinter::ListObserver* observer);
 
    virtual boost::system::error_code getPrinters(std::list<boost::shared_ptr<IPrinter>>& list) = 0;
};