DHDHSoftware/DH.UI.Model.Winform/IOIndicatorCtrl.cs

using System;
using System.Drawing;
using System.Windows.Forms;

namespace XKRS.UI.Model.Winform
{
    public partial class IOIndicatorCtrl : UserControl
    {
        public IOIndicatorCtrl()
        {
            InitializeComponent();
        }

        private bool isON = false;

        public bool IsOn
        {
            get => isON;
            set
            {
                bool? temp = isON;
                isON = value;

                if (temp != isON)
                {
                    RefreshStatus();
                }
            }
        }

        private void RefreshStatus()
        {
            if (InvokeRequired)
            {
                Invoke(new Action(() => RefreshStatus()));
            }
            else
            {
                plStatus.Invalidate();
            }
        }

        private string desc = "";
        public string Desc
        {
            get => desc;
            set
            {
                desc = value;

                DisplayDesc();
            }
        }

        public int Index { get; set; }

        private void DisplayDesc()
        {
            if (InvokeRequired)
            {
                Invoke(new Action(() => DisplayDesc()));
            }
            else
            {
                lblDesc.Text = Desc;
            }
        }

        readonly PointF[] regionBlink = new PointF[]
        {
            new PointF(5,10),
            new PointF(10,13),
            new PointF(12,7),
            new PointF(10,5)
        };

        public IOIndicatorCtrl(bool _isOn, string _desc, int index = 0)
        {
            InitializeComponent();

            IsOn = _isOn;
            Desc = _desc;
            Index = index;
        }

        /// <summary>
        /// 更新绘制图标
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void plStatus_Paint(object sender, PaintEventArgs e)
        {
            Panel pl = sender as Panel;

            Graphics g = e.Graphics;

            g.Clear(SystemColors.Control);


            if (IsOn)
            {
                g.FillEllipse(Brushes.LightGreen, pl.ClientRectangle);
            }
            else
            {
                g.FillEllipse(Brushes.Gray, pl.ClientRectangle);
            }

            g.FillPolygon(Brushes.White, regionBlink);

        }

        public event Action<string, bool, int> OnIODoubleClick;


        private void lblDesc_DoubleClick(object sender, EventArgs e)
        {
            OnIODoubleClick?.Invoke(Name, IsOn, Index);
        }

        private void plStatus_DoubleClick(object sender, EventArgs e)
        {
            OnIODoubleClick?.Invoke(Name, IsOn, Index);
        }
    }
}