Audio Library Part I - (Windows Mixer Control)

//
//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
//  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
//  PURPOSE. IT CAN BE DISTRIBUTED FREE OF CHARGE AS LONG AS THIS HEADER 
//  REMAINS UNCHANGED.
//
//  Email:  gustavo_franco@hotmail.com
//
//  Copyright (C) 2005 Franco, Gustavo 
//
using System;
using System.Collections;

namespace WaveLib.AudioMixer
{
	[Author("Gustavo Franco")]
	public class MixerLines : System.Collections.CollectionBase
	{
		#region Constructors
		public MixerLines()
		{
		}
		#endregion

		#region Methods
		public bool	Contains(MixerLine line)
		{
			foreach(MixerLine mixerLine in this.InnerList)
				if (mixerLine == line)
					return true;

			return false;
		}

		public MixerLine GetMixerLineByIndex(int index)
		{
			return this[index];
		}

		public MixerLine GetMixerFirstLineByComponentType(MIXERLINE_COMPONENTTYPE componentType)
		{
			foreach(MixerLine mixerLine in this.InnerList)
				if (mixerLine.ComponentType == componentType)
					return mixerLine;

			return null;
		}

		public MixerLine GetMixerLineByControlId(uint controlId)
		{
			foreach(MixerLine mixerLine in this.InnerList)
				foreach(MixerControl mixerControl in mixerLine.Controls)
					if(mixerControl.Id == controlId)
						return mixerLine;

			return null;
		}

		public MixerLine GetMixerLineByLineId(uint lineId)
		{
			foreach(MixerLine mixerLine in this.InnerList)
				if(mixerLine.Id == lineId)
					return mixerLine;

			return null;
		}

		public MixerLine GetMixerLineByLineSource(uint lineSource)
		{
			foreach(MixerLine mixerLine in this.InnerList)
				if (mixerLine.Source == lineSource)
					return mixerLine;

			return null;
		}

		public MixerLine GetMixerFirstLineByLineDestination(uint lineDestination)
		{
			foreach(MixerLine mixerLine in this.InnerList)
				if (mixerLine.Destination == lineDestination)
					return mixerLine;

			return null;
		}

		public void Add(MixerLine line)
		{
			this.InnerList.Add(line);
		}

		public void Remove(MixerLine mixerLine)
		{
			if (this.InnerList.Contains(mixerLine))
			{
				this.InnerList.Remove(mixerLine);
				return;
			}

			MixerLine mixerLineToRemove = null;
			foreach(MixerLine mixerLineLoop in this.InnerList)
			{
				if (mixerLineLoop.ComponentType	== mixerLine.ComponentType &&
					mixerLineLoop.Destination	== mixerLine.Destination &&
					mixerLineLoop.Id			== mixerLine.Id &&
					mixerLineLoop.Source		== mixerLine.Source &&
					mixerLineLoop.Name			== mixerLine.Name)
				{
					mixerLineToRemove = mixerLineLoop;
					break;
				}
			}
			
			if (mixerLineToRemove != null)
				this.InnerList.Remove(mixerLineToRemove);
		}
		#endregion

		#region Indexers
		public MixerLine this[int index]
		{
			get
			{
				if (index >= this.InnerList.Count || index < 0)
					return null;

				return (MixerLine) this.InnerList[index];
			}
		}
		#endregion
	}
}