using GrxCAD.DatabaseServices;
using GrxCAD.EditorInput;
using GrxCAD.Geometry;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace HCTools
{
    public partial class GCDdelete_Form : Form
    {
        public GCDdelete_Form()
        {
            InitializeComponent();
        }
        string lyr = "";
        int blc = -999;

        private void GCDdelete_Form_Load(object sender, EventArgs e)
        {
            this.comboBox1.DropDownStyle = ComboBoxStyle.DropDownList;
            this.comboBox_blc.DropDownStyle = ComboBoxStyle.DropDownList;

            //自动填充下拉框
            Database database = GrxCAD.DatabaseServices.HostApplicationServices.WorkingDatabase;
            using (Transaction traction = database.TransactionManager.StartTransaction())
            {
                //存放所有图层名
                List<string> alllayername = new List<string>();
                LayerTable layertable = traction.GetObject(database.LayerTableId, OpenMode.ForRead) as LayerTable;
                foreach (ObjectId objid in layertable)
                {
                    LayerTableRecord layertablerecord = traction.GetObject(objid, OpenMode.ForRead) as LayerTableRecord;
                    alllayername.Add(layertablerecord.Name);
                }

                alllayername.Sort();

                for (int i = 0; i < alllayername.Count; i++)
                {
                    this.comboBox1.Items.Add(alllayername[i]);
                }

                if (alllayername.Contains("8300"))
                {
                    int index = alllayername.IndexOf("8300");
                    this.comboBox1.SelectedIndex = index;
                }
                traction.Commit();
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (comboBox1.Text == "")
            {
                MessageBox.Show("请选择高程点所在图层！");
                return;
            }
            if (comboBox_blc.Text == "")
            {
                MessageBox.Show("请选择比例尺所在图层！");
                return;
            }
            string blctext = comboBox_blc.Text;
            int blcindex = blctext.LastIndexOf(':');
            string strblc = blctext.Substring(blcindex + 1);
            blc = Convert.ToInt32(strblc);
            lyr = comboBox1.Text;
            deletegcd();
        }

        private void deletegcd()
        {
            Database db = GrxCAD.DatabaseServices.HostApplicationServices.WorkingDatabase;
            Editor ed = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
            //获取高程点
            TypedValue[] typedvalue = new TypedValue[1];
            typedvalue.SetValue(new TypedValue((int)DxfCode.LayerName, lyr), 0);
            SelectionFilter selectionfilter = new SelectionFilter(typedvalue);
            PromptSelectionResult psr = ed.SelectAll(selectionfilter);

            if (psr.Status == PromptStatus.OK)
            {
                LayerControl layerscontrol = new LayerControl();
                string layname = "整数值高程点";
                if (layerscontrol.haslayername(layname) == false)
                {
                    colorgb col = new colorgb(255, 255, 0);
                    layerscontrol.creatlayer(layname, col);
                }


                SelectionSet selectionset = psr.Value;
                ObjectId[] obj = new ObjectId[selectionset.Count];
                obj = selectionset.GetObjectIds();
                for (int i = 0; i < obj.Length; i++)
                {

                    using (Transaction tran = db.TransactionManager.StartTransaction())
                    {
                        ObjectId objid = obj[i];

                        //找到实体获取并判断高程
                        Entity entity = (Entity)tran.GetObject(objid, OpenMode.ForWrite);

                        if (entity is BlockReference)
                        {
                            BlockReference bref = (BlockReference)entity;
                            double z = Math.Round(bref.Position.Z, 2, MidpointRounding.AwayFromZero);
                            //判断四舍五入后是否为整数
                            if (Math.Truncate(z) == Math.Round(z, MidpointRounding.AwayFromZero))
                            {
                                bref.Layer = "整数值高程点";
                                //获取高程点旁的高程标注
                                Point3d p1 = new Point3d(bref.Position.X - 4 * blc / 2000, bref.Position.Y - 4 * blc / 2000, 0);
                                Point3d p2 = new Point3d(bref.Position.X + 4 * blc / 2000, bref.Position.Y + 4 * blc / 2000, 0);
                                TypedValue[] typedvalue1 = new TypedValue[2];

                                typedvalue1.SetValue(new TypedValue((int)DxfCode.Start, "Text"), 0);
                                typedvalue1.SetValue(new TypedValue((int)DxfCode.LayerName, lyr), 1);

                                SelectionFilter filter1 = new SelectionFilter(typedvalue1);
                                PromptSelectionResult psr1 = ed.SelectCrossingWindow(p1, p2, filter1);

                                if (psr1.Status == PromptStatus.OK)
                                {
                                    SelectionSet ss = psr1.Value;
                                    ObjectId[] objids = new ObjectId[ss.Count];
                                    objids = selectionset.GetObjectIds();
                                    for (int ii = 0; ii < objids.Length; ii++)
                                    {
                                        ObjectId objid1 = objids[ii];
                                        Entity ent = (Entity)tran.GetObject(objid1, OpenMode.ForWrite);
                                        if(ent is DBText)
                                        {
                                            DBText txt = (DBText)ent;
                                            if(Convert.ToDouble(txt.TextString)== Math.Round(bref.Position.Z, 2, MidpointRounding.AwayFromZero))
                                                txt.Layer = "整数值高程点";
                                        }
                                    }
                                }
                            }
                        }
                        tran.Commit();
                    }
                }
                ed.WriteMessage("删除完成\n");
            }
        }
    }

}