Shrlalgo.RvKits/Sai.RvKits/RvMEP/StandMepCurveViewModel.cs

using System.Diagnostics.CodeAnalysis;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Electrical;
using Autodesk.Revit.DB.Mechanical;
using Autodesk.Revit.DB.Plumbing;
using Autodesk.Revit.UI.Selection;

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;

using Nice3point.Revit.Toolkit.External.Handlers;


namespace Sai.RvKits.RvMEP;

public partial class StandMepCurveViewModel : ObservableObject
{
    public StandMepCurveViewModel(Document doc)
    {
        PipeTypes = doc.OfClass<PipeType>().Cast<PipeType>();
        DuctTypes = doc.OfClass<DuctType>().Cast<DuctType>();
        ConduitTypes = doc.OfClass<ConduitType>().Cast<ConduitType>();
        CableTrayTypes = doc.OfClass<CableTrayType>().Cast<CableTrayType>();
        PipeSystemTypes = doc.OfClass<PipingSystemType>().Cast<PipingSystemType>();
        DuctSystemTypes = doc.OfClass<MechanicalSystemType>().Cast<MechanicalSystemType>();
    }

    private readonly ActionEventHandler standMepCurveEventHandler = new();

    [ObservableProperty]
    private IEnumerable<CableTrayType> cableTrayTypes;

    [ObservableProperty]
    private IEnumerable<ConduitType> conduitTypes;

    [ObservableProperty]
    private IEnumerable<MechanicalSystemType> ductSystemTypes;


    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private IEnumerable<DuctType> ductTypes;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private bool? isCableTray;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private bool? isConduit;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private bool? isDuct;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private bool? isPipe = true;

    [ObservableProperty]
    private IEnumerable<PipingSystemType> pipeSystemTypes;

    [ObservableProperty]
    private IEnumerable<PipeType> pipeTypes;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private CableTrayType selectedCableTrayType;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private ConduitType selectedConduitType;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private MechanicalSystemType selectedDuctSystemType;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private DuctType selectedDuctType;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private PipingSystemType selectedPipeSystemType;

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(CreateMepCurveCommand))]
    private PipeType selectedPipeType;
    partial void OnSelectedPipeTypeChanged(PipeType value)
    {
        var rule = value.RoutingPreferenceManager.GetRule(RoutingPreferenceRuleGroupType.Segments, 0);
        var segment = value.Document.GetElement(rule.MEPPartId) as PipeSegment;
        PipeSizes = segment.GetSizes();
    }

    [ObservableProperty]
    private ICollection<MEPSize> pipeSizes;

    private bool isRunning;

    private bool CanCreate()
    {
        return (IsPipe == true && SelectedPipeType != null && SelectedPipeSystemType != null)
            || (IsDuct == true && SelectedDuctType != null && SelectedDuctSystemType != null)
            || (IsConduit == true && SelectedConduitType != null)
            || (IsCableTray == true && SelectedCableTrayType != null && !isRunning);
    }

    [RelayCommand]
    private void Cancel()
    {
        if (!isRunning)
        {
            return;
        }

        KeyIntPtrHelper.RaiseEscTwice();
    }

    [RelayCommand(CanExecute = nameof(CanCreate))]
    private void CreateMepCurve()
    {
        isRunning = true;
        standMepCurveEventHandler.Raise(app =>
        {
            try
            {
                while (true)
                {
                    var uidoc = app.ActiveUIDocument;
                    var view = uidoc.ActiveView;
                    var doc = uidoc.Document;
                    const ObjectSnapTypes ss = ObjectSnapTypes.Points
                                               | ObjectSnapTypes.Endpoints
                                               | ObjectSnapTypes.Intersections
                                               | ObjectSnapTypes.Centers
                                               | ObjectSnapTypes.Midpoints
                                               | ObjectSnapTypes.Perpendicular
                                               | ObjectSnapTypes.Quadrants
                                               | ObjectSnapTypes.Tangents;
                    var point = uidoc.Selection.PickPoint(ss, "选择创建立管的点");
                    var startPoint = new XYZ(point.X, point.Y, view.GenLevel.Elevation);
                    var endPoint = new XYZ(point.X, point.Y, view.GenLevel.Elevation + (2000 / 304.8));
                    doc.Invoke(
                        _ =>
                        {
                            if (IsPipe == true)
                            {
                                Pipe.Create(doc, SelectedPipeSystemType.Id, SelectedPipeType.Id, view.GenLevel.Id, startPoint, endPoint);
                            }
                            else if (IsDuct == true)
                            {
                                Duct.Create(doc, SelectedDuctSystemType.Id, SelectedDuctType.Id, view.GenLevel.Id, startPoint, endPoint);
                            }
                            else if (IsConduit == true)
                            {
                                Conduit.Create(doc, SelectedConduitType.Id, startPoint, endPoint, view.GenLevel.Id);
                            }
                            else if (IsCableTray == true)
                            {
                                CableTray.Create(doc, SelectedCableTrayType.Id, startPoint, endPoint, view.GenLevel.Id);
                            }
                        },
                        "创建立管"
                    );
                }
            }
            catch (Autodesk.Revit.Exceptions.OperationCanceledException)
            {

            }
        });
        isRunning = false;
    }
}