I am making a alarm clock by creating a class Alarm:
Qt Code: 
  1. #ifndef ALARMH_H
  2. #define ALARMH_H
  3. #include <QString>
  4. #include <QTime>
  5. #include <QDate>
  6.  
  7. class Alarm : public QObject
  8. {
  9.     Q_OBJECT
  10.  
  11.     public:
  12.     QString alarmName;
  13.     QTime alarmTime;
  14.     QDate alarmDate;
  15.     QString alarmSound;
  16.     QString alarmMessage;
  17.     QString alarmApp;
  18.     QString alarmAppArg;
  19. };
  20.  
  21. #endif // ALARMH_H
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So I was wondering what is a better approach, to have a function checking on each new Alarm class instance created:
Qt Code: 
  1. Alarm a1,a2,a3;
  2. a1.setObjectName("a1");
  3. a2.setObjectName("a2");
  4. a3.setObjectName("a3");
  5. QObjectList alarmList;
  6. alarmList << a1 << a2 << a3;
  7.  
  8. void checkAlarm(QObjectList *list)
  9. {
  10.        for(int i = 0;i <= list.count();i++){
  11.               check_if_its_time(list.at(i));
  12.        }
  13. }
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Or if my class should check itself for the time and check if its time to ring the alarm:
Qt Code: 
  1. #ifndef ALARMH_H
  2. #define ALARMH_H
  3. #include <QString>
  4. #include <QTime>
  5. #include <QDate>
  6.  
  7. class Alarm : public QObject
  8. {
  9.     Q_OBJECT
  10.  
  11.     public:
  12.     void checkTime(){
  13.          // insert checking the time code
  14.          emit soundAlarm();
  15.     }
  16.     private:
  17.     QString alarmName;
  18.     QTime alarmTime;
  19.     QDate alarmDate;
  20.     QString alarmSound;
  21.     QString alarmMessage;
  22.     QString alarmApp;
  23.     QString alarmAppArg;
  24.  
  25.     signals:
  26.     soundAlarm();
  27. };
  28.  
  29. #endif // ALARMH_H
  30.  
  31. // then in .cpp file I deal with the signal
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I hope you guys can understand what I mean.. Above code may not be compilable, may have let some things out as Im in a hurry and just trying to give an idea.