using GrxCAD.ApplicationServices;
using GrxCAD.DatabaseServices;
using GrxCAD.EditorInput;
using GrxCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HCTools
{
    class EleptDenck
    {
        public static string ptlayer;
        public static string tklayer;
        public static double density;
        public static int flag;
        public void Ptdensity()
        {
            ObjectId[] ids = TKget();

            Database db = HostApplicationServices.WorkingDatabase;
            DocumentLock doclock = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument();
            Editor editor = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;

            TypedValue[] typedvalue = new TypedValue[2];
            typedvalue.SetValue(new TypedValue((int)DxfCode.LayerName, ptlayer), 0);
            typedvalue.SetValue(new TypedValue((int)DxfCode.Start, "Insert"), 1);
            SelectionFilter selectionfilter = new SelectionFilter(typedvalue);

            for (int i = 0; i < ids.Length; i++)
            {
                Entity current_entity = BasicFunction.GetDBObject(ids[i]);
                ZoomToExtent(current_entity.GeometricExtents);
                using (Transaction trans = db.TransactionManager.StartTransaction())
                {
                    Polyline pll = (Polyline)trans.GetObject(ids[i], OpenMode.ForWrite);
                    Point3dCollection ptcoll = new Point3dCollection();
                    for (int j = 0; j < pll.NumberOfVertices; j++)
                    {
                        ptcoll.Add(pll.GetPoint3dAt(j));
                    }
                    PromptSelectionResult psr = editor.SelectCrossingPolygon(ptcoll,selectionfilter);

                    if (psr.Status == PromptStatus.OK)
                    {
                        SelectionSet selectionset = psr.Value;
                        int ptnums = selectionset.Count;
                        double den = ptnums / pll.Area;
                        if (den < density && flag == 1)
                        {
                            LayerControl layerscontrol = new LayerControl();
                            string layname = "小于密度";
                            if (!layerscontrol.haslayername(layname))
                            {
                                colorgb col = new colorgb(255, 0, 0);
                                layerscontrol.creatlayer(layname, col);
                                pll.Layer = "小于密度";
                            }
                            else
                                pll.Layer = "小于密度";
                            //pll.Color = GrxCAD.Colors.Color.FromColorIndex(GrxCAD.Colors.ColorMethod.ByColor, 1);
                        }
                        else if (den > density && flag == 2)
                        {
                            LayerControl layerscontrol = new LayerControl();
                            string layname = "大于密度";
                            if (!layerscontrol.haslayername(layname))
                            {
                                colorgb col = new colorgb(255, 0, 0);
                                layerscontrol.creatlayer(layname, col);
                                pll.Layer = "大于密度";
                            }
                            else
                                pll.Layer = "大于密度";
                            //pll.Color = GrxCAD.Colors.Color.FromColorIndex(GrxCAD.Colors.ColorMethod.ByColor, 1);
                        }
                        else if (flag == 3)
                        {
                            if (den < density || den > density)
                            {
                                LayerControl layerscontrol = new LayerControl();
                                string layname = "不等于密度";
                                if (!layerscontrol.haslayername(layname))
                                {
                                    colorgb col = new colorgb(255, 0, 0);
                                    layerscontrol.creatlayer(layname, col);
                                    pll.Layer = "不等于密度";
                                }
                                else
                                    pll.Layer = "不等于密度";
                                //pll.Color = GrxCAD.Colors.Color.FromColorIndex(GrxCAD.Colors.ColorMethod.ByColor, 1);
                            }
                        }
                    }
                    trans.Commit();
                }
            }
            doclock.Dispose();
        }

        private static ObjectId[] TKget()
        {
            Editor editor = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor; 
            TypedValue[] typedvalue = new TypedValue[1];
            typedvalue.SetValue(new TypedValue((int)DxfCode.LayerName, tklayer), 0);
           
            SelectionFilter selectionfilter = new SelectionFilter(typedvalue);
            PromptSelectionResult psr = editor.SelectAll(selectionfilter);
            SelectionSet selectionset = psr.Value;
            ObjectId[] obj = new ObjectId[selectionset.Count];

            if (psr.Status == PromptStatus.OK)
            {
                obj = selectionset.GetObjectIds();
            }
            return obj;
        }

        public static void ZoomToExtent(Extents3d extent)
        {
            try
            {
                Point3d pMin = extent.MinPoint;
                Point3d pMax = extent.MaxPoint;
                //获取当前文档及数据库
                Document acDoc = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
                Database acCurDb = acDoc.Database;

                // 启动事务
                using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
                {
                    using (ViewTableRecord acView = acDoc.Editor.GetCurrentView())
                    {
                        //设置视图的高
                        acView.Height = Math.Abs(pMin.Y - pMax.Y);
                        //设置视图的宽
                        acView.Width = Math.Abs(pMin.X - pMax.X);
                        // 设置视图中心
                        acView.CenterPoint = new Point2d((pMin.X + pMax.X) / 2, (pMin.Y + pMax.Y) / 2);
                        // 更新当前视图
                        acDoc.Editor.SetCurrentView(acView);
                    }
                    // 提交更改
                    acTrans.Commit();
                }
            }
            catch (Exception)
            {

                throw;
            }
        }
    }
}