lj_plc/Controls/Mesnac.Controls.Feeding/ConveyorTube.cs

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

namespace Mesnac.Controls.Feeding
{
    [ToolboxBitmap(typeof(ConveyorTube), "Resources.BagOpenStation.bmp")]//新添加的代码

    public partial class ConveyorTube : FeedingControl
    {
        bool bNewPic = false;

        //public enum Statuses
        //{
        //    rgNull = 0, rgMid = 1, rgFull = 2
        //}

        //Statuses _status;
        string sImages;
        public ConveyorTube():base()
        {
            InitializeComponent();

            Init();

            ReloadStream();
        }

        protected override void Init()
        {
            base.Init();
            _imageStream = null;

            //sImages = new string[3];
            sImages = "Mesnac.Controls.Feeding.Resources.Home.gif";//dkNull

            //_status = Statuses.rgNull;
        }

        private void ReloadStream()
        {
            //CloseStream();
            //int nIndex = (int)_status;
            _imageStream = _assembly.GetManifestResourceStream(sImages);
            if (this.DesignMode == true)
            {
                bNewPic = true;
            }
        }


        protected override void OnPaint(PaintEventArgs e)
        {
            if (_imageStream != null)
            {
                Graphics g = e.Graphics;
                Image img = Image.FromStream(_imageStream);
                if (bNewPic == true)
                {
                    this.Size = img.Size;
                    bNewPic = false;
                }

                g.DrawImage(img, 0, 0, this.Width, this.Height);
            }
        }

        private void ConveyorTube_Load(object sender, EventArgs e)
        {
            if (bFirstCreated == true && this.DesignMode == true)
            {
                bNewPic = true;
                bFirstCreated = false;
            }

        }

    }
}