C# Application to Create and Recognize Mouse Gestures (.NET)

using System;
using System.Drawing;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;

namespace GestureRecognizer
{
	public enum MessageType
	{
		Error,
		Normal,
		Info
	}

	public class TransparentLabel : System.Windows.Forms.Label
	{
		private Color m_BaseColor;
		private int m_Transparency;
		private Color m_StandardColor;
		private Color m_InfoColor;
		private Color m_ErrorColor;

		public Color BaseColor { get { return m_BaseColor; } set { m_BaseColor = value; BackColor = Color.FromArgb(m_Transparency, value); Refresh(); } }
		public int Transparency { get { return m_Transparency; } set { m_Transparency = value; BackColor = Color.FromArgb(value, m_BaseColor); Refresh(); } }
		public Color StandardColor { get { return m_StandardColor; } set { m_StandardColor = value; Refresh(); } }
		public Color InfoColor { get { return m_InfoColor; } set { m_InfoColor = value; Refresh(); } }
		public Color ErrorColor { get { return m_ErrorColor; } set { m_ErrorColor = value; Refresh(); } }

		public TransparentLabel()
		{
			SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);
			DoubleBuffered = true;

			m_StandardColor = Color.Gray;
			m_InfoColor = Color.Blue;
			m_ErrorColor = Color.Red;
			ForeColor = m_InfoColor;
			m_BaseColor = Color.Gray;
			m_Transparency = 50;
			BackColor = Color.FromArgb(m_Transparency, m_BaseColor);
		}

		protected override void OnPaint(PaintEventArgs e)
		{
			base.OnPaint(e);
			e.Graphics.DrawRectangle(new Pen(BaseColor), 0, 0, Width - 1, Height - 1);
		}

		public void ShowMessage(string str, MessageType type)
		{
			Text = str;

			#region Linking MessageType to Color
			switch (type)
			{
				case MessageType.Normal:
					{
						ForeColor = m_StandardColor;
						break;
					}
				case MessageType.Info:
					{
						ForeColor = m_InfoColor;
						break;
					}
				case MessageType.Error:
					{
						ForeColor = m_ErrorColor;
						break;
					}
			}
			#endregion

			Refresh();
			//Invalidate();
		}

		public void ShowMessage(string str)
		{
			Text = str;

			Refresh();
			//Invalidate();
		}

		public void ShowMessage(string[] strs, MessageType type)
		{
			string text = "";

			for (int i = 0; i < strs.Length; i++)
				text += strs[i] + (i == strs.Length - 1 ? "" : "\n");

			ShowMessage(text, type);
		}

		public void ShowMessage(string[] strs)
		{
			string text = "";

			for (int i = 0; i < strs.Length; i++)
				text += strs[i] + (i == strs.Length - 1 ? "" : "\n");

			ShowMessage(text);
		}
	}
}