messenger_proxy.hpp

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/*
 * messenger_proxy.h
 *
 *  Created on: Nov 4, 2015
 *      Author: lgeorgop
 */
 
#ifndef DBE_MESSENGER_PROXY_H_
#define DBE_MESSENGER_PROXY_H_
 
#include <QObject>
#include <QString>
#include <QMessageBox>
 
namespace dbe
{
namespace interface
{
 
class messenger_proxy: public QObject
{
  Q_OBJECT
public:
  typedef std::string t_extstr;
 
  static messenger_proxy & ref();
 
  void debug ( t_extstr const &, t_extstr const & );
  void info ( t_extstr const &, t_extstr const & );
  void note ( t_extstr const &, t_extstr const & );
  void warn ( t_extstr const &, t_extstr const & );
  void error ( t_extstr const &, t_extstr const & );
  void fail ( t_extstr const &, t_extstr const & );
 
  /*
   * Signals defined below are used to call across the thread boundary, e.g. from an std::thread to
   * a QThread , in order to guarantee the the strings leave in the receiver thread's memory space
   * copies have to actually be passed as an argument. Otherwise, in case of context switch the
   * value may die, as it is going to be unaware of it being held from the receiver.
   */
signals:
  void signal_debug ( QString , QString );
  void signal_info ( QString , QString );
  void signal_note ( QString , QString );
  void signal_warn ( QString , QString );
  void signal_error ( QString , QString );
  void signal_fail ( QString , QString );
 
private:
  messenger_proxy();
  messenger_proxy ( messenger_proxy const & ) = delete;
  messenger_proxy operator= ( messenger_proxy const & ) = delete;
};
 
}
}
 
#endif /* DBE_MESSENGER_PROXY_H_ */