// 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.Configuration;
namespace BlueViewer
{

public partial class Legend : System.Web.UI.Page
{
  protected System.Web.UI.WebControls.Label lblTitle;
  [System.Diagnostics.DebuggerStepThrough()]
  private void InitializeComponent()
  {

  }

    override protected void OnInit(System.EventArgs e)
  {
    base.OnInit(e);

    InitializeComponent();
  }


  override protected void OnLoad(System.EventArgs e)
  {
    base.OnLoad(e);
    
  }

  override protected void OnPreRender(System.EventArgs e)
  {
    base.OnPreRender(e);

    string legendURL = null;

    if ((bool)Session["VALID_USER"])
    {

      string sServer = ConfigurationManager.AppSettings["DEFAULT_MAPSERVER"];
      int iPort = System.Convert.ToInt32(ConfigurationManager.AppSettings["DEFAULT_MAPPORT"]);
      string sService = ConfigurationManager.AppSettings["DEFAULT_MAPSERVICE"];
      int iWidth = System.Convert.ToInt32(Request.QueryString["WIDTH"]);
      int iHeight = System.Convert.ToInt32(Request.QueryString["HEIGHT"]);

        ESRI.ArcGIS.ADF.Connection.IMS.TCPConnection conArcIMS = new ESRI.ArcGIS.ADF.Connection.IMS.TCPConnection(sServer, iPort);
        ESRI.ArcGIS.ADF.Connection.IMS.XML.AxlRequests axlRequest = new ESRI.ArcGIS.ADF.Connection.IMS.XML.AxlRequests();
      System.Xml.XmlDocument axlResponse = new System.Xml.XmlDocument();
      conArcIMS.ServiceName = sService;

      string sAXLText = null;
      sAXLText = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><ARCXML version=\"1.1\">";
      sAXLText = sAXLText + "<REQUEST><GET_IMAGE><PROPERTIES>";
      sAXLText = sAXLText + "<IMAGESIZE width=\"" + iWidth + "\" height=\"" + iHeight + "\"/>";
      sAXLText = sAXLText + "<ENVELOPE minx=\"" + Request.QueryString["XMIN"] + "\" miny=\"" + Request.QueryString["YMIN"] + "\" maxx=\"" + Request.QueryString["XMAX"] + "\" maxy=\"" + Request.QueryString["YMAX"] + "\" />";
      sAXLText = sAXLText + "<LEGEND display=\"true\" autoextend=\"true\" font=\"Verdana\" />";
      sAXLText = sAXLText + "</PROPERTIES></GET_IMAGE></REQUEST></ARCXML>";

      axlResponse.LoadXml(conArcIMS.Send(sAXLText));
      if (axlResponse.GetElementsByTagName("LEGEND").Count == 1)
      {
        System.Xml.XmlNodeList nodeOutput = axlResponse.GetElementsByTagName("LEGEND");
        legendURL = nodeOutput[0].Attributes["url"].Value;
      }

      imgLegend.ImageUrl = legendURL;
    }
    else
    {
      Response.Write("Error: Page Inaccessible.");
    }
  }
}

}