BizHawk/BizHawk.MultiClient/RecentFiles.cs

using System.Collections.Generic;
using System.Text;

namespace BizHawk.MultiClient
{
	public class RecentFiles
	{
		private int MAX_RECENT_FILES;       //Maximum number of files
		private List<string> recentlist;    //List of recent files

		public RecentFiles() : this(8) { }
		public RecentFiles(int max)
		{
			recentlist = new List<string>();
			MAX_RECENT_FILES = max;
		}

		public void Clear()
		{
			recentlist.Clear();
		}

		public bool IsEmpty()
		{
			if (recentlist.Count == 0)
				return true;
			else
				return false;
		}

		public int Length()
		{
			return recentlist.Count;
		}

		public void Add(string newFile)
		{
			for (int x = 0; x < recentlist.Count; x++)
			{
				if (string.Compare(newFile, recentlist[x]) == 0)
				{
					recentlist.Remove(newFile); //intentionally keeps iterating after this to remove duplicate instances, though those should never exist in the first place
				}
			}
			recentlist.Insert(0, newFile);
			if (recentlist.Count > MAX_RECENT_FILES)
				recentlist.Remove(recentlist[recentlist.Count - 1]);
		}

		public bool Remove(string newFile)
		{
			bool removed = false;
			for (int x = 0; x < recentlist.Count; x++)
			{
				if (string.Compare(newFile, recentlist[x]) == 0)
				{
					recentlist.Remove(newFile); //intentionally keeps iterating after this to remove duplicate instances, though those should never exist in the first place
					removed = true;
				}

			}
			return removed;
		}

		public List<string> GetRecentList()
		{
			return recentlist;
		}

		public List<string> GetRecentListTruncated(int length)
		{
			//iterate through list, truncating each item to length, and return the result in a List<string>
			List<string> temp = new List<string>();
			for (int x = 0; x < recentlist.Count; x++)
			{
				temp.Add(recentlist[x].Substring(0, length));
			}
			return temp;
		}

		public string GetRecentFileByPosition(int position)
		{
			return recentlist[position];
		}
	}
}