using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Runtime.InteropServices; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace Mesnac.Controls.ChemicalWeighing { /// /// 开关灯 /// [ToolboxBitmap(typeof(AlarmLight), "Resources.AlarmLight.bmp")]//新添加的代码 public partial class SwitchLight : ChemicalWeighingControl { bool bNewPic = false; string _statusName; public string StatusName { get { return _statusName; } set { _statusName = value; } } public enum Statuses { ylNormal = 0, ylMove = 1, ylAlarm = 2,ylWeiXiu=3 } Statuses _status; string[] sImages; public SwitchLight() : base() { InitializeComponent(); Init(); ReloadStream(); } protected override void Init() { base.Init(); _imageStream = null; sImages = new string[4]; sImages[0] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightNewGray.png";// sImages[1] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightNewGreen.png";// sImages[2] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightNewRed.png";// sImages[3] = "Mesnac.Controls.ChemicalWeighing.Resources.AlarmLightPurple.png";// _status = Statuses.ylNormal; } 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; } //if (_status != value &&(this.Size.Width != 150 || this.Size.Height != 150) ) if (_status != value) { if (this.DesignMode == true) { bNewPic = true; } } var val = (int)value; if (val == 0) { _status = (Statuses)0; } if (val == 1) { _status = (Statuses)1; } if (val == 2) { _status = (Statuses)2; } if (val == 3) { _status = (Statuses)3; } if (val == 4) { _status = (Statuses)4; } ReloadStream(); Reload(); } } private void Reload() { if (_imageStream != null) { Image img = Image.FromStream(_imageStream); if (bNewPic == true) { //this.Size = img.Size; bNewPic = false; } pictureBox1.Image = img; pictureBox1.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 PressureSwitch_Load(object sender, EventArgs e) { if (bFirstCreated == true && this.DesignMode == true) { bNewPic = true; bFirstCreated = false; Reload(); } } } }