GIS_cs/WWPipeLine/WWPipeLine.Map/Tools/Conditions/FuZhuGongJu/BZShiTi.cs

using SuperMap.Data;
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using WWPipeLine.MapBasic.Conditions;
using WWPipeLine.MapBasic;
using System.Drawing;
using SuperMap.UI;
using WWPipeLine.MapBasic;
using SuperMap.Mapping;

namespace WWPipeLine.MapTools.Conditions.FuZhuGongJu
{
	public class BZShiTi : BasicToolBar
	{
		private Point2D m_StartPoint = Point2D.Empty;
		private Point2D m_EndPoint = Point2D.Empty;
		private Selection[] _selection = null;
		private Recordset _recordset = null;
		private string _str;
		public BZShiTi() : base()
		{
			this.ConditionPanelName = "单一实体标注";
			InitializeComponent();
		}
		protected override void OnLoad(EventArgs e)
		{
			MapControl.Action = SuperMap.UI.Action.Select;
			MapControl.MouseClick += MapControl_MouseClick;
			MapControl.MouseMove += MapControl_MouseMove;
		}

		private void MapControl_MouseMove(object sender, MouseEventArgs e)
		{
			if (m_StartPoint != Point2D.Empty)
			{
				m_EndPoint = MapControl.Map.PixelToMap(new Point(e.X, e.Y));
				GeoLine geoLine = new GeoLine(new Point2Ds() { m_StartPoint, m_EndPoint });
				geoLine.Style = ComsStatic.geoStyle_Brown_05mm;
				int index = MapControl.Map.TrackingLayer.IndexOf("MapControl_MouseMove");
				if (index > -1) MapControl.Map.TrackingLayer.Remove(index);
				MapControl.Map.TrackingLayer.Add(geoLine, "MapControl_MouseMove");
				MapControl.Map.Refresh();
			}
		}

		private void MapControl_MouseClick(object sender, MouseEventArgs e)
		{
			if (e.Button == MouseButtons.Left && MapControl.Action == SuperMap.UI.Action.Select && m_StartPoint == Point2D.Empty)
			{
				_selection = MapControl.Map.FindSelection(true);
				if (_selection is null || _selection.Length != 1)
				{
					Sunny.UI.UIMessageTip.ShowError("没有选中任何节点元素"); return;
				}
				_recordset = _selection[0].ToRecordset();

				if (_recordset.RecordCount != 1)
				{
					Sunny.UI.UIMessageTip.ShowError("选中的节点没有数据"); return;
				}
				DatasetVector dv = _recordset.Dataset as DatasetVector;
				if (dv.Name == dvJSLK_cp.Name)
				{
					if (!ComsStatic.HasField(dv, "cd"))
					{ Sunny.UI.UIMessageTip.ShowError("当前管线没有长度信息"); return; }
					_str = "L=" + ComsStatic.StringToDouble(_recordset.GetFieldValue("cd"), 2).ToString() + "米";
				}
				else
				{
					if (!ComsStatic.HasField(dv, "x") || !ComsStatic.HasField(dv, "y"))
					{ Sunny.UI.UIMessageTip.ShowError("当前管点没有坐标数据"); return; }
					_str = string.Format("X:{0}\r\nY:{1}", ComsStatic.StringToDouble(_recordset.GetFieldValue("x"), 2).ToString(), ComsStatic.StringToDouble(_recordset.GetFieldValue("y"), 2).ToString());
				}
				m_StartPoint = MapControl.Map.PixelToMap(new Point(e.X, e.Y));
				MapControl.Action = SuperMap.UI.Action.Pan;
				MapControl.Map.Refresh();
			}
			else if (e.Button == MouseButtons.Left && m_StartPoint != Point2D.Empty && m_EndPoint != Point2D.Empty)
			{
				TextPart m_TextPart = new TextPart();
				m_TextPart.X = m_EndPoint.X; m_TextPart.Y = m_EndPoint.Y;
				m_TextPart.Text = _str;
				GeoText geoText = new GeoText(m_TextPart, ComsStatic.textStyle_Brown_6mm_BottomLeft);
				MapControl.Map.TrackingLayer.Add(geoText, "geoText");

				GeoLine geoLine = new GeoLine(new Point2Ds() { m_StartPoint, m_EndPoint });
				geoLine.Style = ComsStatic.geoStyle_Brown_05mm;
				MapControl.Map.TrackingLayer.Add(geoLine, "geoLine");
				m_StartPoint = Point2D.Empty; m_EndPoint = Point2D.Empty;
				MapControl.Map.Refresh();
			}
		}

		public override void AfterClose()
		{
			MapControl.MouseClick -= MapControl_MouseClick;
			MapControl.MouseMove -= MapControl_MouseMove;
			base.AfterClose();
		}
		private void InitializeComponent()
		{
			this.SuspendLayout();
			// 
			// ToolsConditions
			// 
			this.Name = "坐标标注";
			this.ResumeLayout(false);
		}
	}
}