lj_plc/Controls/Mesnac.Controls.ChemicalWeighing/SwithDMLight.cs

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

namespace Mesnac.Controls.ChemicalWeighing
{
    [ToolboxBitmap(typeof(SwithDMLight), "Resources.AlarmLight.bmp")]//新添加的代码
    public partial class SwithDMLight : ChemicalWeighingControl
    {
        
        private string[] sImages = new string[3];
        private bool _running;
        private bool _alarm;

        public SwithDMLight()
        {
            InitializeComponent();
            _assembly = Assembly.GetExecutingAssembly();
            sImages[0] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightNewGray.png";//
            sImages[1] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightNewGreen.png";//
            sImages[2] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightNewRed.png";//
        }



        public string RunningName { get; set; }
        public string AlarmName { get; set; }


        public bool Running
        {
            get => _running;
            set
            {
                _running = value;
                R();
            }
        }

        public bool Alarm
        {
            get => _alarm;
            set
            {
                _alarm = value;
                R();
            }
        }


        private void Reload()
        {
            if ( _imageStream != null )
            {
                Image img = Image.FromStream( _imageStream);
                pictureBox1.Image = img;
                pictureBox1.Refresh();
            }
        }

        private void ReloadStream()
        {
            int defaultIndex = 0;
            //如果出现报警 就去判断是直还是斜
            if (Alarm)
            {
                defaultIndex = 2;
            }
            else
            {
                if (Running)
                {
                    defaultIndex = 1;
                }
            }
            
            _imageStream = _assembly.GetManifestResourceStream(sImages[defaultIndex]);
        }

        private void R()
        {
            ReloadStream();
            Reload();
        }
    }
}