// 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 ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.SystemUI;

namespace ContextMenu
{
  public sealed class LayerSelectable : BaseCommand, ICommandSubType
  {
    private IMapControl3 m_mapControl;
    private long m_subType;

    public LayerSelectable()
    {
    }
  
    public override void OnClick()
    {
      IFeatureLayer layer = (IFeatureLayer) m_mapControl.CustomProperty;
      if (m_subType == 1)  layer.Selectable = true;
      if (m_subType == 2) layer.Selectable = false;
    }
  
    public override void OnCreate(object hook)
    {
      m_mapControl = (IMapControl3) hook;
    }
    
    public override bool Enabled
    {
      get
      {
        ILayer layer = (ILayer) m_mapControl.CustomProperty;
        if (layer is IFeatureLayer)
        {
          IFeatureLayer featureLayer = (IFeatureLayer) layer;
          if (m_subType == 1) return !featureLayer.Selectable;
          else return featureLayer.Selectable;
        }
        else
        {
          return false;
        }
      }
    }
  
    public int GetCount()
    {
      return 2;
    }
  
    public void SetSubType(int SubType)
    {
      m_subType = SubType;
    }
  
    public override string Caption
    {
      get
      {
        if (m_subType == 1) return "Layer Selectable";
        else  return "Layer Unselectable";
      }
    }
  }
}