/// <summary>
/// Add an effect to the launchpad
/// </summary>
/// <param name="effect"></param>
/// <param name="updateFrequency"></param>
public void RegisterEffect(ILaunchpadEffect effect, TimeSpan updateFrequency)
{
try
{
// Register any observables being used
CompositeDisposable effectDisposables = new CompositeDisposable();
// If this effect needs the ability to change its frequency
if (effect.WhenChangeUpdateFrequency != null)
{
// Subscribe to the event to change the frequency and add it to this effects disposables
effectDisposables.Add(
effect
.WhenChangeUpdateFrequency
.Subscribe(newFrequency =>
{
// Change the frequency for this effect
OnChangeEffectUpdateFrequency(effect, newFrequency);
}));
}
// If this effect will notify us it needs to be unregistered
if (effect.WhenComplete != null)
{
effectDisposables.Add(
effect
.WhenComplete
.Subscribe(_ =>
{
// Unregister the effect and destroy its disposables
UnregisterEffect(effect);
}));
}
EffectsDisposables.Add(effect, effectDisposables);
// Create an update timer at the specified frequency
EffectsTimers.Add(effect, new Timer(state => effect.Update(), null, 0, (int)updateFrequency.TotalMilliseconds));
// Initiate the effect (provide all buttons and button changed event
effect.Initiate(this);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
public override void UnregisterEffect(ILaunchpadEffect effect)
{
try
{
EffectsDisposables[effect].Dispose();
EffectsDisposables.Remove(effect);
}
catch { }
try
{
EffectsTimers[effect].Dispose();
EffectsTimers.Remove(effect);
}
catch { }
effect.Dispose();
}
/// <summary>
/// Removes an effect from the launchpad
/// </summary>
/// <param name="effect">The effect to remove.</param>
public override void UnregisterEffect(ILaunchpadEffect effect)
{
try
{
// Dispose of the update timer for the effect
effectsTimers[effect]?.Dispose();
// Dispose of the OnComplete subscription
effectsDisposables[effect]?.Dispose();
// Remove the effect from the launchpad
Effects.Remove(effect);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
public void RegisterEffect(ILaunchpadEffect effect, int updateFrequency)
{
RegisterEffect(effect, TimeSpan.FromMilliseconds(updateFrequency));
}
void OnChangeEffectUpdateFrequency(ILaunchpadEffect effect, int newFrequency)
{
EffectsTimers[effect].Change(0, newFrequency);
}
public abstract void UnregisterEffect(ILaunchpadEffect effect);