lj_plc/Controls/Mesnac.Controls.Feeding/OilHopper.cs

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

namespace Mesnac.Controls.Feeding
{
    /// <summary>
    /// 油斗
    /// </summary>
    [ToolboxBitmap( typeof( OilHopper ) , "ICONS.OilWeight.bmp" )]//新添加的代码
    public partial class OilHopper : FeedingControl
    {
        bool bNewPic = false;
        string _statusName;

        public string StatusName
        {
            get
            {
                return _statusName;
            }
            set
            {
                _statusName = value;
            }
        }
        public enum Statuses
        {
            ydNull = 0, ydMid = 1, ydFull = 2
        }

        Statuses _status;
        string[] sImages;
        public OilHopper():base()
        {
            InitializeComponent();

            Init();

            ReloadStream();
        }

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

            sImages = new string[ 3 ];
            sImages[ 0 ] = "Mesnac.Controls.Feeding.Resources.yd.yd0.png";//ydNull
            sImages[ 1 ] = "Mesnac.Controls.Feeding.Resources.yd.yd1.png";//ydMid
            sImages[ 2 ] = "Mesnac.Controls.Feeding.Resources.yd.yd2.png";//ydFull

            _status = Statuses.ydMid;
        }

        private void ReloadStream()
        {
            //CloseStream();
            int nIndex = (int)_status;
            _imageStream = _assembly.GetManifestResourceStream(sImages[nIndex]);
        }

        public Statuses Status
        {
            get
            {
                return _status;
            }
            set
            {
                if (bFirstCreated == true)
                {
                    bFirstCreated = false;
                }

                bool flag = false;
                //if (_status != value &&(this.Size.Width != 150 || this.Size.Height != 150)  )
                if ( _status != value )
                {
                    flag = true;
                    if (this.DesignMode == true)
                    {
                        bNewPic = true;
                    }


                }

                if ( (int)value < 0 )
                {
                    _status = (Statuses)0;
                }
                else if ( (int)value > 2 )
                {
                    _status = (Statuses)2;
                }
                else
                {
                    _status = value;
                }
                if (flag)
                {
                    ReloadStream();
                    this.Refresh();
                }
            }
        }
        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 OilHopper_Load(object sender, EventArgs e)
        {
            if (bFirstCreated == true && this.DesignMode == true)
            {
                bNewPic = true;
                bFirstCreated = false;
            }

        }

    }
}