SzmediTools/GeologyToolkit/CreateBoreholeCmd.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Windows;
using System.Windows.Interop;

using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Architecture;
using Autodesk.Revit.UI;

using Microsoft.Win32;

using Nice3point.Revit.Toolkit.External;

namespace GeologyToolkit
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
    internal class CreateBoreholeCmd : ExternalCommand
    {


        public override void Execute()
        {
            var view = SingletonViewUtil<CreatorView>.GetInstance(out var isNewCreate);
            if (isNewCreate)
            {
                view.DataContext = new CreatorViewModel();
                ShowAhead(view);
            }
            view.Activate();
        }
        private static void ShowAhead(Window window)
        {
            _ = new WindowInteropHelper(window) { Owner = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle };
            window.Show();
        }
    }
    public sealed record SingletonViewUtil<T>
    where T : Window, new()
    {
        private static T instance;
        private static readonly object padlock = new();

        private SingletonViewUtil() { }

        public static T GetInstance(out bool isNewCreate)
        {
            isNewCreate = false;
            //double-check locking
            if (instance == null)
            {
                isNewCreate = true;
                lock (padlock)
                {
                    instance ??= new T();
                    instance.Closed += OnWindowClosed;
                }
            }
            return instance;
        }

        private static void OnWindowClosed(object sender, EventArgs e)
        {
            instance = null;
        }
    }
    public class LoadFamilyOptions : IFamilyLoadOptions
    {
        //族已载入
        public bool OnFamilyFound(bool familyInUse, out bool overwriteParameterValues)
        {
            overwriteParameterValues = true;
            return true;
        }

        //存在共享族
        public bool OnSharedFamilyFound(
            Family sharedFamily,
            bool familyInUse,
            out FamilySource source,
            out bool overwriteParameterValues
        )
        {
            source = FamilySource.Project;
            overwriteParameterValues = true;

            return true;
        }
    }
}