/*

   This Source Code Form is subject to the terms of the Mozilla Public

   License, v. 2.0. If a copy of the MPL was not distributed with this

   file, You can obtain one at http://mozilla.org/MPL/2.0/.

   Copyright (C) 2011 Michael Möller <mmoeller@openhardwaremonitor.org>

 */

 using System;

 using System.Collections.Generic;

 using System.Windows.Forms;

 using OpenHardwareMonitor.Utilities;

 namespace OpenHardwareMonitor.GUI {

   public class UserRadioGroup {

     private string name;

     private int value;

     private MenuItem[] menuItems;

     private event EventHandler changed;

     private PersistentSettings settings;

     public UserRadioGroup(string name, int value,

       MenuItem[] menuItems, PersistentSettings settings) {

       this.settings = settings;

       this.name = name;

       if (name != null)

         this.value = settings.GetValue(name, value);

       else

         this.value = value;

       this.menuItems = menuItems;

       this.value = Math.Max(Math.Min(this.value, menuItems.Length - 1), 0);

       for (int i = 0; i < this.menuItems.Length; i++) {

         this.menuItems[i].Checked = i == this.value;

         int index = i;

         this.menuItems[i].Click += delegate(object sender, EventArgs e) {

           this.Value = index;

         };

       }      

     }

     public int Value {

       get { return value; }

       set {

         if (this.value != value) {

           this.value = value;

           if (this.name != null)

             settings.SetValue(name, value);

           for (int i = 0; i < this.menuItems.Length; i++) 

             this.menuItems[i].Checked = i == value;

           if (changed != null)

             changed(this, null);

         }

       }

     }

     public event EventHandler Changed {

       add {

         changed += value;

         if (changed != null)

           changed(this, null);

       }

       remove {

         changed -= value;

       }

     }

   }

 }