From 696c9c657336356770cfff65db53271296781bca Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Fri, 21 Jan 2005 01:01:51 +0000
Subject: Initial checkin

---
 MenuTree.cs | 163 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 MenuTree.cs

(limited to 'MenuTree.cs')

diff --git a/MenuTree.cs b/MenuTree.cs
new file mode 100644
index 0000000..10033a0
--- /dev/null
+++ b/MenuTree.cs
@@ -0,0 +1,163 @@
+// Noddybox.GUI - various GUI support routines
+// Copyright (C) 2004  Ian Cowburn
+// 
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+// $Id$
+//
+using System;
+using System.Windows.Forms;
+
+namespace Noddybox.GUI
+{
+	/// <summary>
+	/// Provides a directorey based interface to creating a Menu
+	/// </summary>
+	public class MenuTree
+	{
+		// --------------------------------
+		// PUBLIC
+		// --------------------------------
+
+		/// <summary>
+		/// Constructs the pathed Menu
+		/// </summary>
+		/// <param name="m">The GUI object to manage</param>
+		public MenuTree(Menu m)
+		{
+			m_defHandler=null;
+			m_dir=new DirectoryCollection();
+			m_dir.Add("/",m);
+		}
+
+		/// <summary>
+		/// The default event handler for menu items.
+		/// </summary>
+		public EventHandler DefaultHandler
+		{
+			set {m_defHandler = value;}
+		}
+
+		/// <summary>
+		/// Adds a menu item
+		/// </summary>
+		/// <param name="path">The path to the item</param>
+		/// <param name="name">The text to put in the menu item</param>
+		public void Add(string path, string name)
+		{
+			if (m_defHandler!=null)
+			{
+				Add(path,new MenuItem(name,m_defHandler));
+			}
+			else
+			{
+				Add(path,new MenuItem(name));
+			}
+		}
+
+		/// <summary>
+		/// Adds a menu item
+		/// </summary>
+		/// <param name="path">The path to the item</param>
+		/// <param name="name">The text to put in the menu item</param>
+		/// <param name="handler">The event handler to associate with the menu item</param>
+		public void Add(string path, string name, EventHandler handler)
+		{
+			Add(path,new MenuItem(name,handler));
+		}
+
+		/// <summary>
+		/// Adds a menu item
+		/// </summary>
+		/// <param name="path">The path to the item</param>
+		/// <param name="item">The menu item</param>
+		public void Add(string path, MenuItem item)
+		{
+			if (m_dir.IsRoot(path))
+			{
+				throw new ArgumentException("Cannot set the root element");
+			}
+			
+			m_dir.Add(path,item);
+			
+			object o=m_dir.GetParent(path);
+			
+			if (o is MenuItem)
+			{
+				MenuItem m=(MenuItem)o;
+				
+				m.MenuItems.Add(item);
+			}
+			else
+			{
+				Menu m=(Menu)o;
+				
+				m.MenuItems.Add(item);
+			}
+		}
+		
+		/// <summary>
+		/// Gets a menu item
+		/// </summary>
+		/// <param name="path">The path to the menu item</param>
+		/// <returns>The MenuItem object</returns>
+		public MenuItem Get(string path)
+		{
+			if (m_dir.IsRoot(path))
+			{
+				throw new ArgumentException("Cannot get the root element");
+			}
+			
+			return (MenuItem)m_dir.Get(path);
+		}
+		
+		/// <summary>
+		/// Removes a section of the menu recursively
+		/// </summary>
+		/// <param name="path">The path to remove</param>
+		public void Remove(string path)
+		{
+			if (m_dir.IsRoot(path))
+			{
+				throw new ArgumentException("Cannot remove the root element");
+			}
+			
+			object o=m_dir.GetParent(path);
+			MenuItem item=(MenuItem)m_dir.Get(path);
+			
+			m_dir.Remove(path);
+			
+			if (o is MenuItem)
+			{
+				MenuItem m=(MenuItem)o;
+				
+				m.MenuItems.Remove(item);
+			}
+			else
+			{
+				Menu m=(Menu)o;
+				
+				m.MenuItems.Remove(item);
+			}
+		}
+
+		// --------------------------------
+		// PRIVATE
+		// --------------------------------
+
+		private DirectoryCollection		m_dir;
+		private EventHandler			m_defHandler;
+	}
+}
-- 
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