/*
 * EditorUtil.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 System.ComponentModel;

namespace TACParticleEngine
{
	/// <summary>
	/// Provides information for the particle editors texture type converter
	/// </summary>
	public static class EditorUtil
	{
		/// <summary>
		/// Returns an array of texture file names from the current minigame's texture directory
		/// </summary>
		/// <returns>An array of texture file names from the current minigame's texture directory</returns>
		public static string[] GetParticleTextures()
		{
			int start = 0;
			int length = System.IO.Directory.GetCurrentDirectory().LastIndexOf("Content");
			if (length > 0)
			{
				System.IO.Directory.SetCurrentDirectory(System.IO.Directory.GetCurrentDirectory().Substring(start, length));
			}
			string[] textures = System.IO.Directory.GetFiles(@"Content\\Textures");
			List<string> result = new List<string>();
			foreach (string file in textures)
			{
				if (file.EndsWith(".xnb"))
				{
					start = file.LastIndexOf("\\") + 1;
					length = file.LastIndexOf(".") - start;
					result.Add(@"Textures\" + file.Substring(start, length));
				}
			}
			return result.ToArray();
		}
	}

	/// <summary>
	/// Provides type converters for use in the particle editor form
	/// </summary>
	public class TypeConverterTexture : TypeConverter
	{
		/// <summary>
		/// Whether or not standard values collections are supported
		/// </summary>
		/// <param name="context">The type descriptor's context</param>
		/// <returns>True</returns>
		public override bool GetStandardValuesSupported(
						   ITypeDescriptorContext context)
		{
			return true;
		}

		/// <summary>
		/// Overwriting of the standard values collection for textures in the particle editor
		/// </summary>
		/// <param name="context">The type descriptor's context</param>
		/// <returns>An array of texture file names from the current minigame's texture directory</returns>
		public override StandardValuesCollection
					 GetStandardValues(ITypeDescriptorContext context)
		{
			return new StandardValuesCollection(EditorUtil.GetParticleTextures());
		}
	}
}