/*
 * FillBarMenuItem.cs
 * Authors:
 * 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 System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

namespace tAC_Engine.ScreenStates
{
	/// <summary>
	/// Represents a menu item with a fill bar.
	/// </summary>
	public class FillBarMenuItem : MenuItem
	{
		#region Fields

		/// <summary>
		/// The percent the current bar is filled.
		/// </summary>
		protected float m_PercentFilled;

		#endregion

		#region Properties

		/// <summary>
		/// Gets/Sets the percent the current bar is filled.
		/// </summary>
		public float PercentFilled
		{
			get { return m_PercentFilled; }
			set { m_PercentFilled = value; }
		}

		#endregion

		#region Constructs

		/// <summary>
		/// Vreate the new fill bar menu item.
		/// </summary>
		/// <param name="p_Text">The text for the item.</param>
		/// <param name="p_Position">The position of the item.</param>
		/// <param name="p_PercentFilled">The startup percentage filled.</param>
		public FillBarMenuItem(string p_Text, Vector2 p_Position, float p_PercentFilled)
			: base(p_Text, p_Position)
		{
			// Set the startup percent filled
			m_PercentFilled = p_PercentFilled;
		}

		#endregion

		#region Draw

		/// <summary>
		/// Draw's the given menu item.
		/// </summary>
		/// <param name="p_SpriteBatch">The sprite batch to draw with.</param>
		/// <param name="p_SpriteFont">The font to use for the drawing.</param>
		/// <param name="p_BackTexture">The texture for the background of the bar</param>
		/// <param name="p_FillTexture">The texture for filling the bar</param>
		[Obsolete("Texture2Ds should not be passed into constructors to be displayed.")]
		public void Draw(SpriteBatch p_SpriteBatch, SpriteFont p_SpriteFont,
			Texture2D p_BackTexture, Texture2D p_FillTexture)
		{
			// Begin drawing
			p_SpriteBatch.Begin();

			// Draw the text for the texture
			p_SpriteBatch.DrawString(p_SpriteFont, m_Text, m_Position, m_DrawColor);

			// Get the length of the string in the font
			Vector2 stringSize = p_SpriteFont.MeasureString(m_Text);
			stringSize += p_SpriteFont.MeasureString("A");
			stringSize.Y = 0;

			// Now use the size to place the bacxk texture bar
			p_SpriteBatch.Draw(p_BackTexture, m_Position + stringSize, Color.White);

			// Now draw the filled texture
			p_SpriteBatch.Draw(p_FillTexture, m_Position + stringSize,
				null, Color.White, 0.0f, Vector2.Zero, new Vector2(m_PercentFilled, 1),
				SpriteEffects.None, 0.0f);

			p_SpriteBatch.End();
		}

		#endregion
	}
}