// Copyright 2010 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
public class PolylineTool : ESRI.ArcGIS.ADF.Web.UI.WebControls.Tools.IMapServerToolAction
{
  #region IMapServerToolAction Members

  public void ServerAction(ESRI.ArcGIS.ADF.Web.UI.WebControls.ToolEventArgs toolEventArgs)
  {
    // Get a reference to the Map control on which the tool was executed
    ESRI.ArcGIS.ADF.Web.UI.WebControls.Map adfMap = (ESRI.ArcGIS.ADF.Web.UI.WebControls.Map)toolEventArgs.Control;

    // Get the polyline drawn by the user
    ESRI.ArcGIS.ADF.Web.UI.WebControls.MapPolylineEventArgs mapPolylineEventArgs = (ESRI.ArcGIS.ADF.Web.UI.WebControls.MapPolylineEventArgs)toolEventArgs;
    ESRI.ArcGIS.ADF.Web.Geometry.Polyline adfPolyline = mapPolylineEventArgs.MapPolyline;

    // Convert the Web ADF input polyline to its ArcGIS Server data source specific equivalent
    ESRI.ArcGIS.ADF.ArcGISServer.PolylineN agsSoapPolyline = ESRI.ArcGIS.ADF.Web.DataSources.ArcGISServer.Converter.FromAdfPolyline(adfPolyline);

    // Get an ArcGIS Server specific map functionality.  Note this code assumes the existence of an ArcGIS
    // Server resource item with the name "MapResourceItem0"
    ESRI.ArcGIS.ADF.Web.DataSources.ArcGISServer.MapFunctionality agsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.ArcGISServer.MapFunctionality)(adfMap.GetFunctionality("MapResourceItem0"));

    // Get the ArcGIS Server MapDescription for the resource
    ESRI.ArcGIS.ADF.ArcGISServer.MapDescription agsSoapMapDescription = agsMapFunctionality.MapDescription;

    // Create a blue ArcGIS Server data source specific color object
    ESRI.ArcGIS.ADF.ArcGISServer.RgbColor agsSoapRgbColor = new ESRI.ArcGIS.ADF.ArcGISServer.RgbColor();
    agsSoapRgbColor.Red = 0;
    agsSoapRgbColor.Green = 0;
    agsSoapRgbColor.Blue = 255;

    // Initialize an ArcGIS Server data source specific line symbol with a solid style and the color initialized above
    ESRI.ArcGIS.ADF.ArcGISServer.SimpleLineSymbol agsSoapSimpleLineSymbol = new ESRI.ArcGIS.ADF.ArcGISServer.SimpleLineSymbol();
    agsSoapSimpleLineSymbol.Color = agsSoapRgbColor;
    agsSoapSimpleLineSymbol.Style = ESRI.ArcGIS.ADF.ArcGISServer.esriSimpleLineStyle.esriSLSSolid;
    agsSoapSimpleLineSymbol.Width = 2;

    // Create an ArcGIS Server data source specific line element with the line symbol and input polyline
    ESRI.ArcGIS.ADF.ArcGISServer.LineElement agsSoapLineElement = new ESRI.ArcGIS.ADF.ArcGISServer.LineElement();
    agsSoapLineElement.Line = agsSoapPolyline;
    agsSoapLineElement.Symbol = agsSoapSimpleLineSymbol;

    // If the current resource does not have any custom graphics specified, initialize this property with
    // a new array with just the newly created graphic element.  Otherwise, create a new array with both
    // the current custom graphics and teh newly created element.
    if (agsSoapMapDescription.CustomGraphics != null)
    {
      // Create a new ArcGIS Server graphic element array with a size that is one bigger than the
      // resource's current element array
      int elementCount = agsSoapMapDescription.CustomGraphics.Length;
      ESRI.ArcGIS.ADF.ArcGISServer.GraphicElement[] agsSoapGraphicElementArray = new ESRI.ArcGIS.ADF.ArcGISServer.GraphicElement[elementCount + 1];

      // Copy the resource's current element graphic array to the new array
      agsSoapMapDescription.CustomGraphics.CopyTo(agsSoapGraphicElementArray, 0);

      // Add the newly created line element to the array
      agsSoapGraphicElementArray[elementCount] = agsSoapLineElement;

      // Update the resource's element array with the new array
      agsSoapMapDescription.CustomGraphics = agsSoapGraphicElementArray;
    }
    else
    {
      // Create a new ArcGIS Server graphic element array with only the newly created line element
      ESRI.ArcGIS.ADF.ArcGISServer.GraphicElement[] agsSoapGraphicElement = new ESRI.ArcGIS.ADF.ArcGISServer.GraphicElement[1];
      agsSoapGraphicElement[0] = agsSoapLineElement;

      // Update the resource's element array with the new array
      agsSoapMapDescription.CustomGraphics = agsSoapGraphicElement;
    }

    // Refresh the resource so the new line is shown
    adfMap.RefreshResource(agsMapFunctionality.Resource.Name);
  }

  #endregion
}