using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;

using System;
using System.Collections.Generic;

namespace HYJig
{
    [Transaction(TransactionMode.Manual)]
    [Regeneration(0)]
    public class JigCurves : IExternalCommand
    {
        public Result Execute(ExternalCommandData cmdData, ref string message, ElementSet elements)
        {
            UIDocument activeUIDocument = cmdData.Application.ActiveUIDocument;
            ViewAssist.ViewValidating(activeUIDocument.Document, activeUIDocument.ActiveView);
            XYZ xyz = null;
            List<Curve> list = new List<Curve>();
            try
            {
                IList<Reference> list2 = activeUIDocument.Selection.PickObjects(Autodesk.Revit.UI.Selection.ObjectType.Element);
                foreach (Reference reference in list2)
                {
                    DetailCurve detailCurve = activeUIDocument.Document.GetElement(reference) as DetailCurve;
                    if (detailCurve != null)
                    {
                        list.Add(detailCurve.GeometryCurve);
                    }
                }
                xyz = activeUIDocument.Selection.PickPoint("请选择基点<退出>:");
            }
            catch
            {
                return 0;
            }
            XCurvesJig xcurvesJig = new XCurvesJig(activeUIDocument, false);
            XYZ xyz2 = xcurvesJig.DragCurves(list, xyz, "请确定插入点：");
            Result result;
            if (xyz2 == null)
            {
                xcurvesJig.Dispose();
                result = 0;
            }
            else
            {
                Transform transform = Transform.CreateTranslation(xyz2 - xyz);
                Transaction transaction = new Transaction(activeUIDocument.Document);
                transaction.Start("CreateCurve");
                foreach (Curve curve in list)
                {
                    Curve curve2 = curve.CreateTransformed(transform);
                    activeUIDocument.Document.Create.NewDetailCurve(activeUIDocument.ActiveView, curve2);
                }
                transaction.Commit();
                xcurvesJig.Dispose();
                result = 0;
            }
            return result;
        }
    }
}