public Form1()
{
InitializeComponent();
speedMonitorSubject = new SpeedMonitorSubject(); // must create SpeedMonitorSubject first - we need to pass
// it in when we call an observer's constructor
rpmObserver = new RPMObserver(lblRPM, speedMonitorSubject);
caloriesObserver = new CaloriesObserver(lblCaloriesPerHour, speedMonitorSubject);
kmsPerHourObserver = new KMsPerHourObserver(lblKMPerHour, speedMonitorSubject);
}
public Form1()
{
InitializeComponent();
speedMonitorSubject = new SpeedMonitorSubject(); // must create SpeedMonitorSubject first - we need to pass
// it in when we call an observer's constructor
rpmObserver = new RPMObserver(lblRPM, speedMonitorSubject);
caloriesObserver = new CaloriesObserver(lblCaloriesPerHour, speedMonitorSubject);
kmsPerHourObserver = new KMsPerHourObserver(lblKMPerHour, speedMonitorSubject);
}
public BicycleObserver(Label displayLabel, SpeedMonitorSubject bikeSubject)
{
this.displayLabel = displayLabel;
currentRPM = 0;
currentComputedValue = 0;
this.bikeSubject = bikeSubject;
// VERY IMPORTANT. Observers sign themselves up....
bikeSubject.AddObserver(this);
}
public BicycleObserver(Label displayLabel, SpeedMonitorSubject bikeSubject)
{
this.displayLabel = displayLabel;
currentRPM = 0;
currentComputedValue = 0;
this.bikeSubject = bikeSubject;
// VERY IMPORTANT. Observers sign themselves up....
bikeSubject.AddObserver(this);
}
public KMsPerHourObserver(Label label, SpeedMonitorSubject bikeSubject) : base(label, bikeSubject)
{
// Nothing...
}
public KMsPerHourObserver(Label label, SpeedMonitorSubject bikeSubject)
: base(label, bikeSubject)
{
// Nothing...
}
public CaloriesObserver(Label label, SpeedMonitorSubject bikeSubject)
: base(label, bikeSubject)
{
// nothing -- just use parent const.
}
public CaloriesObserver(Label label, SpeedMonitorSubject bikeSubject) : base(label, bikeSubject)
{
// nothing -- just use parent const.
}
public RPMObserver(Label label, SpeedMonitorSubject bikeSubject)
: base(label, bikeSubject)
{
}
public RPMObserver(Label label, SpeedMonitorSubject bikeSubject) : base(label, bikeSubject)
{
}