public ExpandoOperationViewModel()
{
AddInputCommand = new RequeryCommand(
() => Input.Add(new ConnectorViewModel()),
() => Input.Count < MaxInput);
RemoveInputCommand = new RequeryCommand(
() => Input.RemoveAt(Input.Count - 1),
() => Input.Count > MinInput);
}
public StateMachineViewModel()
{
PendingTransition = new TransitionViewModel();
Runner = new StateMachineRunnerViewModel(this);
Blackboard = new BlackboardViewModel()
{
Actions = new NodifyObservableCollection <BlackboardItemReferenceViewModel>(BlackboardDescriptor.GetAvailableItems <IBlackboardAction>()),
Conditions = new NodifyObservableCollection <BlackboardItemReferenceViewModel>(BlackboardDescriptor.GetAvailableItems <IBlackboardCondition>())
};
// public INodifyObservableCollection<T> WhenAdded(Action<T> added)
// INodifyObservableCollection<T>, Action<T> 임으로 T는 WhenAdded 의부모 속성을 가지므로 파라미터 하나짜리 익명함수의 경우 해당 파라미터는 부모의 객체 타입이다.
// Source 의경우는 TransitionViewModel 객체의 StateViewModel 이다.
// public NodifyObservableCollection<StateViewModel> Transitions { get; } = new NodifyObservableCollection<StateViewModel>();
// 초기화 구문 같은데...
Transitions.WhenAdded(c => c.Source.Transitions.Add(c.Target))
.WhenRemoved(c => c.Source.Transitions.Remove(c.Target))
.WhenCleared(c => c.ForEach(i =>
{
i.Source.Transitions.Clear();
i.Target.Transitions.Clear();
}));
States.WhenAdded(x => x.Graph = this)
.WhenRemoved(x => DisconnectState(x))
.WhenCleared(x =>
{
Transitions.Clear();
OnCreateDefaultNodes();
});
OnCreateDefaultKeys();
// 여기서 노드와 arrow 가 생성됨.
OnCreateDefaultNodes();
// RequeryCommand ???
RenameStateCommand = new RequeryCommand(() => SelectedStates[0].IsRenaming = true, () => SelectedStates.Count == 1 && SelectedStates[0].IsEditable);
DisconnectStateCommand = new RequeryCommand <StateViewModel>(x => DisconnectState(x), x => !IsRunning && x.Transitions.Count > 0);
DisconnectSelectionCommand = new RequeryCommand(() => SelectedStates.ForEach(x => DisconnectState(x)), () => !IsRunning && SelectedStates.Count > 0 && Transitions.Count > 0);
DeleteSelectionCommand = new RequeryCommand(() => SelectedStates.ToList().ForEach(x => x.IsEditable.Then(() => States.Remove(x))), () => !IsRunning && (SelectedStates.Count > 1 || (SelectedStates.Count == 1 && SelectedStates[0].IsEditable)));
AddStateCommand = new RequeryCommand <Point>(p => States.Add(new StateViewModel
{
Name = "New State",
IsRenaming = true,
Location = p,
ActionReference = Blackboard.Actions.Count > 0 ? Blackboard.Actions[0] : null
}), p => !IsRunning);
CreateTransitionCommand = new DelegateCommand <(object Source, object?Target)>(s => Transitions.Add(new TransitionViewModel
{
Source = (StateViewModel)s.Source,
Target = (StateViewModel)s.Target !
}), s => !IsRunning && s.Source is StateViewModel source && s.Target is StateViewModel target && target != s.Source && target != States[0] && !source.Transitions.Contains(s.Target));
public CalculatorInputOperationViewModel()
{
AddOutputCommand = new RequeryCommand(
() => Output.Add(new ConnectorViewModel
{
Title = $"In {Output.Count}"
}),
() => Output.Count < 10);
RemoveOutputCommand = new RequeryCommand(
() => Output.RemoveAt(Output.Count - 1),
() => Output.Count > 1);
Output.Add(new ConnectorViewModel
{
Title = $"In {Output.Count}"
});
}
public ApplicationViewModel()
{
_calculators.Push(new CalculatorViewModel());
BackCommand = new RequeryCommand(() =>
{
_calculators.Pop();
OnPropertyChanged(nameof(Current));
OnPropertyChanged(nameof(IsCalculatorOpen));
}, () => _calculators.Count > 1);
OpenCalculatorCommand = new DelegateCommand <CalculatorViewModel>(calculator =>
{
_calculators.Push(calculator);
OnPropertyChanged(nameof(Current));
OnPropertyChanged(nameof(IsCalculatorOpen));
});
}
