LM-Middleware/HexcalMC/Base/Lamp.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

namespace HexcalMC
{
    public partial class Lamp : UserControl
    {
        public Lamp()
        {
            InitializeComponent();
            base.SetStyle(ControlStyles.ResizeRedraw, true);
            this.DoubleBuffered = true;
        }

        private void Lamp_Load(object sender, EventArgs e)
        {

        }

        private static Color[] _colors = new Color[]
		{
			Color.Green,
			Color.Orange,
			Color.Red,
			Color.White,
			Color.Silver,
			Color.Transparent,
			Color.Yellow,
			Color.Blue
		};

        private const int Ok = 0;
        private const int Warn = 1;
        private const int Error = 2;
        private const int Debug = 4;
        private const int Undef = -1;
        private int _state = -1;


        private string _dtext = "";
        private bool _shadow = false;

        /// <summary> 设置颜色 </summary>
        public int State
        {
            get
            {
                return this._state;
            }
            set
            {
                this._state = value;
                this.Refresh();
            }
        }

        /// <summary> 设置文字 </summary>
        public string LText
        {
            get
            {
                return this._dtext;
            }
            set
            {
                this._dtext = value;
            }
        }

        /// <summary> 设置阴影 </summary>
        public bool Shadow
        {
            get
            {
                return this._shadow;
            }
            set
            {
                this._shadow = value;
            }
        }

        protected override void OnPaint(PaintEventArgs gr)
        {
            base.OnPaint(gr);
            int num = Math.Min(base.Width, base.Height);
            bool flag = num >= 8;
            if (flag)
            {
                this.DrawLamp(gr.Graphics, num);
            }
        }

        private void DrawLamp(Graphics g, int rad)
        {
            g.SmoothingMode = SmoothingMode.AntiAlias;
            RectangleF rect = new RectangleF(1f, 1f, (float)(rad - 5), (float)(rad - 5));
            float num = rect.Width / 12f;
            RectangleF rect2 = new RectangleF(rect.Location, rect.Size);
            rect2.Inflate(1f, 1f);
            if (_shadow)
            {
                rect2.X += num;
                rect2.Y += num;
                g.FillEllipse(Brushes.Gray, rect2);
                rect2.X -= num;
                rect2.Y -= num;
            }
            g.FillEllipse(Brushes.Black, rect2);

            if (_state != -1)
            {
                using (GraphicsPath graphicsPath = new GraphicsPath())
                {
                    graphicsPath.AddEllipse(rect);
                    int x = (int)(rect.X + rect.Width / 3f);
                    int y = (int)(rect.Y + rect.Height / 3f);
                    Color color = Lamp._colors[_state];
                    using (PathGradientBrush pathGradientBrush = new PathGradientBrush(graphicsPath))
                    {
                        pathGradientBrush.CenterColor = Color.Snow;
                        pathGradientBrush.CenterPoint = new Point(x, y);
                        pathGradientBrush.SurroundColors = new Color[]
						{
							color
						};
                        g.FillPath(pathGradientBrush, graphicsPath);
                    }
                }
            }
            else
            {
                using (Brush brush = new SolidBrush(this.BackColor))
                {
                    g.FillEllipse(brush, rect);
                }
            }

            if (_dtext.Length > 0)
            {
                float emSize = rect.Height / 6f;
                Font font = new Font("Microsoft Sans Serif", emSize, FontStyle.Bold, GraphicsUnit.Point, 0);
                int num2 = (int)font.GetHeight();
                int y2 = (int)rect.Height / 2 - num2 / 2;
                int num3 = (int)g.MeasureString(_dtext, font).Width;
                int num4 = (int)(rect.Width - (float)num3) / 2;
                bool flag3 = num4 < 0;
                if (flag3)
                {
                    num4 = 0;
                }
                g.DrawString(_dtext, font, Brushes.Black, new Point(num4, y2));
            }
        }

    }

    public class LampColor
    {
        public const int Ok = 0;
        public const int Warn = 1;
        public const int Error = 2;
        public const int Debug = 4;
        public const int Undef = -1;

        public const int Green = 0;
        public const int Orange = 1;
        public const int Red = 2;
        public const int White = 3;
        public const int Silver = 4;
        public const int Transparent = 5;
        public const int Yellow = 6;
        public const int Blue = 7;       
    }
}