GIS_cs/WWPipeLine/WWPipeLine.Map/Tools/Conditions/Sercher/cxYuanXing.cs

using SuperMap.Data;
using SuperMap.Mapping;
using SuperMap.UI;
using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using WeifenLuo.WinFormsUI.Docking;
using WWPipeLine.MapBasic;
using WWPipeLine.MapBasic.Conditions;
using WWPipeLine.MapBasic;

namespace WWPipeLine.MapTools.Conditions.Sercher
{
    public class cxYuanXing : ConditionPanel
	{
		private Sunny.UI.UIComboBox uiCBLayers;
		private Sunny.UI.UILabel uilbMsg;
		GeoRegion m_geo = null;
		public cxYuanXing() : base()
        {
            this.ConditionPanelName = "圆形查询";
            InitializeComponent();
            uilbMsg.Text = "鼠标左键长按画圆形";
        }
        protected override void OnLoad(EventArgs e)
        {
			MapControl.Action = SuperMap.UI.Action.CreateCircle;
			MapControl.Tracked += new TrackedEventHandler(TrackedHandler);

			uiCBLayers.ValueMember = "LayerDatasetName";
			uiCBLayers.DisplayMember = "LayerCaption";
			uiCBLayers.DataSource = getLayers();
		}
        private void TrackedHandler(object sender, TrackedEventArgs e)
        {
			if (e.Geometry is null) return;
			m_geo = e.Geometry.Clone() as GeoRegion;
			if (m_geo is null) { Sunny.UI.UIMessageTip.ShowError("查询区域绘制失败"); return; }
			GeoStyle m_GeoStyle = new GeoStyle { LineColor = Color.Red, LineWidth = 1, FillBackOpaque = false, FillOpaqueRate = 10 };
			m_geo.Style = m_GeoStyle;
			MapControl.Map.TrackingLayer.Clear();
			MapControl.Map.TrackingLayer.Add(m_geo, "GeoRectangle");
			MapControl.Map.Refresh();
		}

        public override object Do(DockPanel dockPanel = null)
        {
			IsConditionValid = false;
			if (m_geo is null) { Sunny.UI.UIMessageTip.ShowError("请先绘制查询区域"); return false; }
			DatasetVector datasetVector = this.DatasourceMapControl.Datasets[uiCBLayers.SelectedValue.ToString()] as DatasetVector;
			if (datasetVector is null)
			{
				Sunny.UI.UIMessageTip.ShowError("当前选择的图层没有可用的数据"); return false;
			}
			Recordset recordset = datasetVector.Query(m_geo, 1, "1=1", CursorType.Static);
			if (recordset is null)
			{
				Sunny.UI.UIMessageTip.ShowError("当前图层没有查询到数据"); return false;
			}
			Layer layer = MapControl.Map.Layers.FindLayer(datasetVector);
			Selection selection = layer.Selection;
			selection.FromRecordset(recordset);
			layer.Selection = selection;
			MapControl.Map.Refresh();
			DataTable dt = RecordsetToDataTable(recordset, uiCBLayers.SelectedText);
			recordset.Close(); recordset.Dispose();
			return dt;
		}
        public override void AfterClose()
        {
            MapControl.Tracked -= new TrackedEventHandler(TrackedHandler);
            base.AfterClose();
        }
        private void InitializeComponent()
        {
			this.uilbMsg = new Sunny.UI.UILabel();
			this.uiCBLayers = new Sunny.UI.UIComboBox();
			this.SuspendLayout();
			// 
			// uilbMsg
			// 
			this.uilbMsg.AutoSize = true;
			this.uilbMsg.Font = new System.Drawing.Font("微软雅黑", 12F);
			this.uilbMsg.Location = new System.Drawing.Point(3, 39);
			this.uilbMsg.Name = "uilbMsg";
			this.uilbMsg.Size = new System.Drawing.Size(74, 21);
			this.uilbMsg.TabIndex = 0;
			this.uilbMsg.Text = "操作说明";
			this.uilbMsg.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// uiCBLayers
			// 
			this.uiCBLayers.DataSource = null;
			this.uiCBLayers.FillColor = System.Drawing.Color.White;
			this.uiCBLayers.Font = new System.Drawing.Font("微软雅黑", 12F);
			this.uiCBLayers.Location = new System.Drawing.Point(60, 5);
			this.uiCBLayers.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
			this.uiCBLayers.MinimumSize = new System.Drawing.Size(63, 0);
			this.uiCBLayers.Name = "uiCBLayers";
			this.uiCBLayers.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
			this.uiCBLayers.Size = new System.Drawing.Size(328, 29);
			this.uiCBLayers.TabIndex = 3;
			this.uiCBLayers.Text = "请选择需要查询的图层";
			this.uiCBLayers.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// cxYuanXing
			// 
			this.Controls.Add(this.uiCBLayers);
			this.Controls.Add(this.uilbMsg);
			this.Name = "cxYuanXing";
			this.Size = new System.Drawing.Size(392, 215);
			this.ResumeLayout(false);
			this.PerformLayout();

        }
    }
}