using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Collections;
using Miner.Interop;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Geodatabase;

namespace Miner.Samples.Search.Strategies
{
 /// <summary>
 /// XY Search Strategy
 /// Configuration file must include these properties:
 ///  (IMap) "Map" 
 ///  (double) "XCoord" 
 ///  (double) "YCoord"
 ///  (double) "Distance"
 ///  (IObjectClass) "ObjectClass"
 /// </summary>
 [ClassInterface(ClassInterfaceType.None)]
 [Guid("E52A4CFA-651A-46a0-BD9E-B0213BDE19AA")]
 [ProgId("MinerDeveloperSamples.SampleXYSearch")]
 public class XYSearch : IMMSearchStrategy
 {
  
  private string _featureLayerClassID = "{40A9E885-5533-11D0-98BE-00805F7CED21}";
  private IMMRowSearchResults _results;
  private Hashtable _tableHash;
  private IMMSearchControl _searchControl;
  private double _xCoord;
  private double _yCoord;
  private double _distance;
  private IMap _map;
  private IObjectClass _classFilter;
  public XYSearch(){} // no constructor req'd.
  #region IMMSearchStrategy Members
  public IMMSearchResults Find(IMMSearchConfiguration pSearchConfig, IMMSearchControl searchControl)
  {
   _searchControl = searchControl;
   ExtractSettings(pSearchConfig);
   ExecuteFind();
   if (Stopped)
   {
    return null;
   }
   else
   {
    return _results as IMMSearchResults; 
   }
  }
  #endregion
  private void ExtractSettings(IMMSearchConfiguration config)
  {
   if (null == config) throw new InvalidOperationException("Null IMMSearchConfiguration; find cannot proceed.");
   
   IPropertySet properties = config.SearchParameters as IPropertySet;
   
   if (null == properties) throw new InvalidOperationException("No PropertySet in IMMSearchConfiguration; find cannot proceed.");
   
   _map = (IMap) properties.GetProperty("Map");
   _xCoord = (double) properties.GetProperty("XCoord");
   _yCoord = (double) properties.GetProperty("YCoord");
   _distance = (double) properties.GetProperty("Distance");
   _classFilter = (IObjectClass) properties.GetProperty("ObjectClass");
   if (_distance < 1) 
   {
    _distance = 1;
   }
  }
  private bool Stopped
  {
   get
   {
    if (_searchControl != null)
    {
     return _searchControl.Stopped;
    }
    else
    {
     return false;
    }
   }
  }
  private void ExecuteFind()
  { 
   // todo: Use filters for map production.

   // We track the tables that we have visited to eliminate 
   // duplicates.  Create a hash with the number of tables
   // we may hit.  Note that LayerCount only returns the 
   // count of top-level layers, NOT those that are buried 
   // under groups - thus the doubling factor here:
   int appxNumberOfActualLayers = _map.LayerCount * 2;
   _tableHash = new Hashtable(appxNumberOfActualLayers);
   IGeometry searchArea = BuildSearchGeometry();
   
   IEnumLayer layers = GetFeatureLayers();
   layers.Reset();
   ILayer layer = layers.Next();
   while (layer != null)
   {
    if (Stopped) break;
    if (layer.Valid)
    {
     ICursor cursor = LocateFeatures(layer, searchArea);
     AddCursorToResults(cursor);
    }
    layer = layers.Next();
   }
   // no need to persist the table data; clear it out.
   _tableHash.Clear();
  }
  private IGeometry BuildSearchGeometry()
  {
   IPoint center = new PointClass();
   center.X = _xCoord;
   center.Y = _yCoord;
   ICircularArc circle = new CircularArcClass();
   IConstructCircularArc makeCircle = circle as IConstructCircularArc;
   makeCircle.ConstructCircle(center, _distance, true);
   return circle as IGeometry;
  }
  private IEnumLayer GetFeatureLayers()
  {
   ESRI.ArcGIS.esriSystem.UID filterUID = new ESRI.ArcGIS.esriSystem.UIDClass();
   filterUID.Value = _featureLayerClassID;
   return _map.get_Layers(filterUID, true);
  }
  private ICursor LocateFeatures(ILayer layer, IGeometry searchArea)
  {
   IFeatureClass featClass = GetFeatureClass(layer);
   if (featClass == null) return null;
   ISpatialFilter filter = new SpatialFilterClass();
   filter.Geometry = searchArea.Envelope;
   filter.GeometryField = featClass.ShapeFieldName;
   filter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
   filter.WhereClause += GetQueryDefinition(layer);
   IObjectClass oc = featClass as IObjectClass;
   ITable table = oc as ITable; 
   
   ICursor cursor = null;
   // Due to grouped layers, we may be hitting the same 
   // table twice.  Check here if we have already checked
   // this one - we do not want to duplicate results.
   if (TableAlreadySearched(table)) return cursor;
   try
   {
    cursor = table.Search(filter, false);
   }
   catch
   {
    //notify user with a pretty msg that the search failed:
    Resourcer res = new Resourcer();
    string msg = "Failed Table Search";
    string title = "Sample XY Search";
    MessageBox.Show(msg, title);
   }
   return cursor;
  }
  private bool TableAlreadySearched(ITable table)
  {
   if (!_tableHash.Contains(table))
   {
    _tableHash.Add(table, null);
    return false;
   }
   else
   {
    return true;
   }
  }
  private void AddCursorToResults(ICursor cursor)
  {
   // simply take a cursor, and add it to the 
   // internal _results object.
   
   if (cursor == null) return;
   if (_results == null)
   {
    _results = new Miner.Framework.Search.RowSearchResults();
   }
   _results.AddCursor(cursor, false);
  }
  private string GetQueryDefinition(ILayer layer)
  {
   if (layer == null) return null;
   
   IFeatureLayerDefinition flDef = layer as IFeatureLayerDefinition;
   if (null == flDef) return null;
   string queryDef = flDef.DefinitionExpression;
   if (queryDef != null && queryDef.Length > 0)
   {
    queryDef = "(" + queryDef + ")"; 
   }
   
   return queryDef;
  }
  private IFeatureClass GetFeatureClass(ILayer layer)
  {
   if (layer == null || !layer.Valid) return null;
   IFeatureLayer featLyr = layer as IFeatureLayer;
   if (featLyr == null) return null;
   return featLyr.FeatureClass;
  }
 }
}

using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using Miner.ComCategories;
using Miner.Framework.Search;
using Miner.Interop;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Geodatabase;

namespace Miner.Samples.Search.Strategies
{
 [ClassInterface(ClassInterfaceType.None)]
 [Guid("5F24275E-9A43-4adc-B462-4DD6170C2FB6")]
 [ProgId("MinerDeveloperSamples.SampleXYSearchUI")]
    [ComponentCategory(ComCategory.MMLocatorSearchStrategyUI)]
 public class XYSearchUI : System.Windows.Forms.UserControl, IMMSearchStrategyUI
 {
  private IMap _map;
  private IActiveView _activeView;
  private IScreenDisplay _screenDisplay;
  private DecimalConverter _converter = new DecimalConverter();
  private IObjectClass _classFilter = null;
  private string _caption = "Sample XY Search";
  private int _priority = 0;
  
  private System.Windows.Forms.TextBox txtXCoord;
  private System.Windows.Forms.TextBox txtYCoord;
  private System.Windows.Forms.TextBox txtDistance;
  private System.Windows.Forms.Label lblX;
  private System.Windows.Forms.Label lblY;
  private System.Windows.Forms.Button btnXYTool;
  private System.Windows.Forms.Label lblDistance;
  /// <summary> 
  /// Required designer variable.
  /// </summary>
  private System.ComponentModel.Container components = null;
  public XYSearchUI()
  {
   try
   {
    // This call is required by the Windows.Forms Form Designer.
    InitializeComponent();
   
    SetXYToolImage();
   }
   catch (Exception xcp)
   {
    MessageBox.Show("Failure in Ctor: " + xcp.ToString());
   }
  }
  /// <summary> 
  /// Clean up any resources being used.
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if(components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }
  #region Component Designer generated code
  /// <summary> 
  /// Required method for Designer support - do not modify 
  /// the contents of this method with the code editor.
  /// </summary>
  private void InitializeComponent()
  {
            this.txtXCoord = new System.Windows.Forms.TextBox();
            this.txtYCoord = new System.Windows.Forms.TextBox();
            this.txtDistance = new System.Windows.Forms.TextBox();
            this.lblX = new System.Windows.Forms.Label();
            this.lblY = new System.Windows.Forms.Label();
            this.lblDistance = new System.Windows.Forms.Label();
            this.btnXYTool = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // txtXCoord
            // 
            this.txtXCoord.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.txtXCoord.Location = new System.Drawing.Point(56, 8);
            this.txtXCoord.Name = "txtXCoord";
            this.txtXCoord.Size = new System.Drawing.Size(100, 20);
            this.txtXCoord.TabIndex = 0;
            this.txtXCoord.Text = "000000";
            // 
            // txtYCoord
            // 
            this.txtYCoord.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.txtYCoord.Location = new System.Drawing.Point(56, 40);
            this.txtYCoord.Name = "txtYCoord";
            this.txtYCoord.Size = new System.Drawing.Size(100, 20);
            this.txtYCoord.TabIndex = 1;
            this.txtYCoord.Text = "111111";
            this.txtYCoord.WordWrap = false;
            // 
            // txtDistance
            // 
            this.txtDistance.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.txtDistance.Location = new System.Drawing.Point(16, 96);
            this.txtDistance.Name = "txtDistance";
            this.txtDistance.Size = new System.Drawing.Size(100, 20);
            this.txtDistance.TabIndex = 2;
            this.txtDistance.Text = "22222";
            // 
            // lblX
            // 
            this.lblX.Location = new System.Drawing.Point(8, 8);
            this.lblX.Name = "lblX";
            this.lblX.Size = new System.Drawing.Size(40, 16);
            this.lblX.TabIndex = 3;
            this.lblX.Text = "X:";
            this.lblX.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
            // 
            // lblY
            // 
            this.lblY.Location = new System.Drawing.Point(8, 40);
            this.lblY.Name = "lblY";
            this.lblY.Size = new System.Drawing.Size(40, 16);
            this.lblY.TabIndex = 2;
            this.lblY.Text = "Y:";
            this.lblY.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
            // 
            // lblDistance
            // 
            this.lblDistance.Location = new System.Drawing.Point(16, 72);
            this.lblDistance.Name = "lblDistance";
            this.lblDistance.Size = new System.Drawing.Size(144, 16);
            this.lblDistance.TabIndex = 1;
            this.lblDistance.Text = "Search Distance:";
            this.lblDistance.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
            // 
            // btnXYTool
            // 
            this.btnXYTool.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
            this.btnXYTool.Location = new System.Drawing.Point(168, 16);
            this.btnXYTool.Name = "btnXYTool";
            this.btnXYTool.Size = new System.Drawing.Size(32, 32);
            this.btnXYTool.TabIndex = 0;
            this.btnXYTool.TabStop = false;
            this.btnXYTool.Click += new System.EventHandler(this.btnXYTool_Click);
            // 
            // XYSearchUI
            // 
            this.Controls.Add(this.btnXYTool);
            this.Controls.Add(this.lblDistance);
            this.Controls.Add(this.lblY);
            this.Controls.Add(this.lblX);
            this.Controls.Add(this.txtDistance);
            this.Controls.Add(this.txtYCoord);
            this.Controls.Add(this.txtXCoord);
            this.Name = "XYSearchUI";
            this.Size = new System.Drawing.Size(216, 128);
            this.Load += new System.EventHandler(this.XYSearchUI_Load);
            this.ResumeLayout(false);
            this.PerformLayout();
  }
  #endregion
  #region Private Methods
  private void SetXYToolImage()
  {
   try
   {
                Bitmap xyBmp = new Bitmap(GetType().Assembly.GetManifestResourceStream("Miner.Samples.XYSearchStrategy.XYPointerTool.bmp"));
    xyBmp.MakeTransparent(xyBmp.GetPixel(0,0));
    btnXYTool.Image = xyBmp;
   }
   catch (Exception xcp)
   { 
    MessageBox.Show("Failed to set image" + xcp.ToString());
   }
  }
 
  private IMMSearchConfiguration GetUserSettings()
  {
   Decimal x = (Decimal) _converter.ConvertFromString(txtXCoord.Text);
   Decimal y = (Decimal) _converter.ConvertFromString(txtYCoord.Text);
   Decimal d = (Decimal) _converter.ConvertFromString(txtDistance.Text);
   
   double X = (double) Convert.ToDouble(x);
   double Y = (double) Convert.ToDouble(y);
   double D = (double) Convert.ToDouble(d);
   if (D <= 1) D = 1;
   IPropertySet properties = new PropertySetClass();
   properties.SetProperty("Map", _map);
   properties.SetProperty("XCoord", X);
   properties.SetProperty("YCoord", Y);
   properties.SetProperty("Distance", D);
   properties.SetProperty("ObjectClass", _classFilter);
   IMMSearchConfiguration config = new SearchConfiguration();
   if (null == config) return null;
   config.SearchParameters = properties;
   return config;
  }
  private void GetCoordsFromXYTool()
  {
   IPoint point = null;
   IGeometry geom = new PointClass();
   IRubberBand rb = new RubberPointClass();
   
   if (rb.TrackExisting(_screenDisplay, null, geom))
   {
    point = rb.TrackNew(_screenDisplay, null) as IPoint;
   }
   if (point != null)
   {
    txtXCoord.Text = point.X.ToString();
    txtYCoord.Text = point.Y.ToString();
    txtDistance.Focus();
   }
  }
  #endregion
 
  #region IMMSearchStrategyUI Members
  public void InitializeStrategyUI(ESRI.ArcGIS.Carto.IMap pMap, ESRI.ArcGIS.Geodatabase.IObjectClass pClassFilter)
  {
   _map = pMap;
   _activeView = pMap as IActiveView;
   _screenDisplay = _activeView.ScreenDisplay;
   _classFilter = pClassFilter;
  }
  public void Deactivated()
  {
  }
  public int Priority
  {
   get
   {
    return _priority;
   }
  }
  public void Reset()
  {
   txtXCoord.Text = "";
   txtYCoord.Text = "";
   txtDistance.Text = "";
  }
  public IMMSearchStrategy SearchStrategy
  {
   get
   {
    IMMSearchStrategy strategy = new XYSearch() as IMMSearchStrategy;
    if (null == strategy) 
    {
     throw new Exception("Failed to create new SampleXYSearch");
    }
    return strategy;
   }
  }
  public string Caption
  {
   get
   {
    return _caption;
   }
  }
  public IMMSearchConfiguration GetSearchConfiguration(mmSearchOptionFlags optionFlags)
  {
   return GetUserSettings();
  }
  public void Shutdown()
  {
   //do nothing
  } 
 
  public string COMProgID
  {
   get
   {
    return null;
   }
  }
  
  public IMMResultsProcessor ResultsProcessor
  {
   get
   {
    return null;
   }
  }
  #endregion
  #region User Interface Events
  
  private void btnXYTool_Click(object sender, System.EventArgs e)
  {
   try
   {
                System.Windows.Forms.Cursor xyCursor = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("Miner.Samples.XYSearchStrategy.XYSearchCursor.cur"));
    this.Cursor = xyCursor;
    GetCoordsFromXYTool();
   }
   catch (Exception xcp)
   {
    MessageBox.Show("Failed to process XYTool click" + xcp.ToString());
    // dont throw!
   }
   finally
   {
    this.Cursor = Cursors.Default;
   }
  }
  
  #endregion
        private void XYSearchUI_Load(object sender, EventArgs e)
        {
        }
 
 }
}