/*
 * Util.MenuButtonHover.cs
 * Authors: Adam Nabinger
 * Copyright (c) 2007-2008 Cornell University

 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.
*/

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;

namespace Util
{
	/// <summary>
	/// A simple button for use in a menu.
	/// </summary>
	public class MenuButtonHover : MenuButton
	{
		#region Fields

		// The file path name of the texture to load
		private readonly string mHoverTextureName;

		// The texture to render the button with when the mouse is hovering over it.
		private Texture2D mHoverTexture;

		// If the mouse is over this button
		private bool mHovering;

		#endregion

		#region Creation

		/// <summary>
		/// Constructor
		/// </summary>
		/// <param name="textureName">The file path name for the texture to render with</param>
		/// <param name="hoverTextureName"></param>
		/// <param name="location">The location of the button and its dimensions</param>
		/// <param name="exe">Code to execute for when the button is pressed</param>
		public MenuButtonHover(string textureName, string hoverTextureName, Rectangle location, Code exe)
			: base(textureName, location, exe)
		{
			mHoverTextureName = hoverTextureName;
		}

		#endregion

		#region Management

		/// <summary>
		/// Loads in all the necessary information for content dependent objects
		/// </summary>
		/// <param name="content">Reference to the current content manager for loading</param>
		internal override void LoadContent(ContentManager content)
		{
			mHoverTexture = content.Load<Texture2D>(mHoverTextureName);
			base.LoadContent(content);
		}

		public void Update(bool hovering)
		{
			mHovering = hovering;
		}

		#endregion

		#region Render

		/// <summary>
		/// Renders the menu button
		/// </summary>
		/// <param name="sb">The current sprite batch object to render with</param>
		internal override void Draw(SpriteBatch sb)
		{
			if (mHovering)
			{
				sb.Draw(mHoverTexture, Location, Color.White);
			}
			else
			{
				sb.Draw(mTexture, Location, Color.White);
			}
		}

		#endregion
	}
}