MARKUS

using MarkupToPDF.Common;

using MarkupToPDF.Controls.Common;

using MarkupToPDF.Controls.Line;

using MarkupToPDF.Controls.Polygon;

using MarkupToPDF.Controls.Shape;

using MarkupToPDF.Controls.Text;

using MarkupToPDF.Controls.Etc;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Media;

using MarkupToPDF.Controls.Cad;

using KCOM.Common;

namespace KCOM.Events

{

    public class UndoCommand

    {

        private static readonly UndoCommand _instance = new UndoCommand();

        // Explicit static constructor to tell C# compiler

        // not to mark type as beforefieldinit

        static UndoCommand()

        {

        }

        private UndoCommand()

        {

        }

        public static UndoCommand Instance

        {

            get

            {

                return _instance;

            }

        }

        /// <summary>

        /// push undo data

        /// </summary>

        /// <author>humkyung</author>

        /// <date>2019.06.14</date>

        /// <param name="comments"></param>

        public void Execute(ICollection<CommentUserInfo> comments, double dAngle)

        {

            List<Point> p_set = new List<Point>();

            Undo_data UndoData = new Undo_data()

            {

                IsUndo = false,

                Event = Event_Type.Thumb,

                EventTime = DateTime.Now,

                Markup_List = new List<Multi_Undo_data>(),

            };

            Multi_Undo_data multi_Undo_Data = new Multi_Undo_data();

            foreach (var comment in comments)

            {

                multi_Undo_Data.PointSet = new List<Point>();

                p_set = new List<Point>();

                if (comment is TextControl)

                {

                    multi_Undo_Data.PointSet.Add((comment as TextControl).StartPoint);

                    multi_Undo_Data.PointSet.Add((comment as TextControl).EndPoint);

                }

                foreach (var point in (comment as IPath).PointSet)

                {

                    multi_Undo_Data.PointSet.Add(point);

                }

                if (comment is ArrowTextControl)

                {

                    multi_Undo_Data.Angle = dAngle = (comment as ArrowTextControl).Angle;

                }

                else

                {

                    multi_Undo_Data.Angle = dAngle;

                }

                multi_Undo_Data.Markup = comment;

                UndoData.Markup_List.Add(multi_Undo_Data);

                multi_Undo_Data = new Multi_Undo_data();

            }

            ViewerDataModel.Instance.UndoDataList.Where(data => data.IsUndo == true).ToList().ForEach(i =>

            {

                ViewerDataModel.Instance.UndoDataList.Remove(i);

            });

            ViewerDataModel.Instance.UndoDataList.Add(UndoData);

        }

    }

}