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

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Runtime.CompilerServices;
using System.Windows.Forms;

namespace HYJig
{
    public class XCircleJig : XUiJigBase
    {
        public XCircleJig(UIDocument uiDoc)
    : base(uiDoc)
        {
            this.JigStage = XCircleJig.EStage.eNoOper;
        }

        public XYZ PickCenterPoint(string strPrompt = "请确定圆中心点:")
        {
            try
            {
                this.JigStage = XCircleJig.EStage.eCenterPt;
                this.CenterPoint = base.UiDoc.Selection.PickPoint(strPrompt);
            }
            catch
            {
                this.CenterPoint = null;
            }
            this.JigStage = XCircleJig.EStage.eNoOper;
            return this.CenterPoint;
        }

        public double PickCircleRadius(XYZ ptCenter, string strPrompt = "请确定圆上一点：")
        {
            try
            {
                this.JigStage = XCircleJig.EStage.eOnCurve;
                this.CenterPoint = ptCenter;
                this.OnCurvePoint = base.UiDoc.Selection.PickPoint(strPrompt);
            }
            catch
            {
                if (this.m_prompDlg == null || base.CmdEndType != XUiJigBase.ECmdEndType.eEnter)
                {
                    this.OnCurvePoint = null;
                    return 0.0;
                }
                base.CmdEndType = XUiJigBase.ECmdEndType.eOther;
                XYZ xyz = base.Client2Revit(this.m_ptCur);
                string inputValue = this.m_prompDlg.GetInputValue();
                double num = Convert.ToDouble(inputValue) / 304.8;
                XYZ xyz2 = (xyz - this.CenterPoint).Normalize();
                this.OnCurvePoint = this.CenterPoint + xyz2 * num;
            }
            this.JigStage = XCircleJig.EStage.eNoOper;
            return this.CenterPoint.DistanceTo(this.OnCurvePoint);
        }

        public override void Draw(PaintEventArgs paintEventArgs)
        {
            base.Draw(paintEventArgs);
            if (this.JigStage == XCircleJig.EStage.eOnCurve)
            {
                Graphics graphics = paintEventArgs.Graphics;
                Point point = base.Revit2Client(this.CenterPoint);
                int distance = XDrawable2D.GetDistance(point, this.m_ptCur);
                XCircle2D xcircle2D = new XCircle2D(point, distance);
                XGraphics xgraphics = new XGraphics(graphics, base.JigPen);
                xcircle2D.Draw(xgraphics);
            }
        }

        public override List<Curve> CreateCurves()
        {
            List<Curve> list = new List<Curve>();
            try
            {
                if (this.CenterPoint != null && this.OnCurvePoint != null)
                {
                    double num = this.CenterPoint.DistanceTo(this.OnCurvePoint);
                    Plane plane = Plane.CreateByNormalAndOrigin(base.SketchPlane.GetPlane().Normal, this.CenterPoint);
                    Arc arc = Arc.Create(plane, num, 0.0, Math.PI);
                    arc.MakeUnbound();
                    list.Add(arc);
                }
            }
            catch
            {
            }
            return list;
        }

        public XYZ CenterPoint { get; set; }

        public XYZ OnCurvePoint { get; set; }

        public XCircleJig.EStage JigStage { get; set; }

        public enum EStage
        {
            eNoOper,
            eCenterPt,
            eOnCurve
        }
    }
}