using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace Mesnac.Controls.Feeding { [ToolboxBitmap(typeof(Jzf), "Resources.jzf.jzf0.png")]//新添加的代码 public partial class Jzf : FeedingControl { public enum Statuses { TurnOff = 0, TurnOn = 1 } private bool bNewPic = false; private string _statusName; private Statuses _status; private string[] sImages; public Jzf():base() { InitializeComponent(); Init(); ReloadStream(); this.Reload(); } private void Jzf_Load(object sender, EventArgs e) { if (bFirstCreated == true && this.DesignMode == true) { bNewPic = true; bFirstCreated = false; Reload(); } } protected override void Init() { base.Init(); _imageStream = null; sImages = new string[2]; sImages[0] = "Mesnac.Controls.Feeding.Resources.jzf.jzf0.png";//zsTurnOn sImages[1] = "Mesnac.Controls.Feeding.Resources.jzf.jzf1.png";//zsTurnOn _status = Statuses.TurnOff; } private void ReloadStream() { int nIndex = (int)_status; _imageStream = _assembly.GetManifestResourceStream(sImages[nIndex]); } public string StatusName { get { return _statusName; } set { _statusName = value; } } 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 > 1) { _status = (Statuses)1; } else { _status = value; } if (flag) { ReloadStream(); Reload(); 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 Reload() { if (_imageStream != null) { Image img = Image.FromStream(_imageStream); Size size = new Size(); size.Width = 18; size.Height = 15; this.Size = size; if (bNewPic == true) { this.Size = size; bNewPic = false; } pictureBox1.Image = img; pictureBox1.Refresh(); } } } }