// Copyright 2012 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.Runtime.InteropServices;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;

// This command removes the selected layer from the map
namespace NAEngine
{
  [Guid("53399A29-2B65-48d5-930F-804B88B85A34")]
  [ClassInterface(ClassInterfaceType.None)]
  [ProgId("NAEngine.RemoveLayer")]
  public sealed class cmdRemoveLayer : ESRI.ArcGIS.ADF.BaseClasses.BaseCommand
  {
    private ESRI.ArcGIS.Controls.IMapControl3 m_mapControl;

    public cmdRemoveLayer()
    {
      base.m_caption = "Remove Layer";
    }

    public override void OnClick()
    {
      if (m_mapControl == null)
      {
        MessageBox.Show("Error: Map control is null for this command");
        return;
      }

      // Get the layer that was right-clicked on in the table of contents
      // m_MapControl.CustomProperty was set in frmMain.axTOCControl1_OnMouseDown
      var layer = m_mapControl.CustomProperty as ILayer;
      if (layer == null)
      {
        MessageBox.Show("Error: The selected layer was not set as the CustomProperty of the map control");
        return;
      }

      // Remove the selected layer, then redraw the map
      m_mapControl.Map.DeleteLayer(layer);
      m_mapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, layer.AreaOfInterest);
    }

    public override void OnCreate(object hook)
    {
      // The "hook" was set as a MapControl in formMain_Load
      m_mapControl = hook as ESRI.ArcGIS.Controls.IMapControl3;
    }
  }
}