lj_plc/Controls/Mesnac.Controls.Feeding/SideTube.cs

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

namespace Mesnac.Controls.Feeding
{
    /// <summary>
    /// 支管（三通）
    /// </summary>
    [ToolboxBitmap( typeof( SideTube ) , "ICONS.SideTube.bmp" )]//新添加的代码
    public partial class SideTube : FeedingControl
    {
        bool bNewPic = false;

        public enum Types
        {
            btLeft = 0, btRight = 1, btUp = 2, btDown = 3
        }

        Types _type;
        string [] sImages;
        public SideTube():base()
        {
            InitializeComponent();

            Init();

            ReloadStream();
        }

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

            sImages = new string[ 4 ];
            sImages[ 0 ] = "Mesnac.Controls.Feeding.Resources.st.STJ3.png";//
            sImages[ 1 ] = "Mesnac.Controls.Feeding.Resources.st.STJ2.png";//
            sImages[ 2 ] = "Mesnac.Controls.Feeding.Resources.st.STJ0.png";//
            sImages[ 3 ] = "Mesnac.Controls.Feeding.Resources.st.STJ1.png";//

            _type = Types.btLeft;
        }

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

        public Types Type
        {
            get
            {
                return _type;
            }
            set
            {
                if (bFirstCreated == true)
                {
                    bFirstCreated = false;
                }
                bool flag = false;
                if (_type != value)
                {
                    flag = true;
                    if (this.DesignMode == true)
                    {
                        bNewPic = true;
                    }
                }

                _type = 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 (_type == Types.btLeft)
                //{
                //    //img.RotateFlip(RotateFlipType.
                //}
                //else if (_type == Types.btRight)
                //{
                //    img.RotateFlip(RotateFlipType.RotateNoneFlipX);
                //}
                //else if (_type == Types.btUp)
                //{
                //    img.RotateFlip(RotateFlipType.Rotate90FlipNone);
                //}
                //else if (_type == Types.btDown)
                //{
                //    img.RotateFlip(RotateFlipType.Rotate270FlipNone);
                //}

                if (bNewPic == true)
                {
                    this.Size = img.Size;
                    bNewPic = false;
                }

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

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

        }

    }
}