using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using System.Windows.Forms;
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using LB_VisionProcesses.BarcodeReaders;
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namespace LB_VisionProcesses.BarcodeReaders
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{
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/// <summary>
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/// 读码器配置与测试窗体
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/// </summary>
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public partial class BarcodeReaderForm : Form
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{
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private IBarcodeReader _reader;
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private string _currentSN;
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private LB_VisionProcesses.Processes.BarcodeReaderProcess _process;
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private string _processPath;
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public BarcodeReaderForm()
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{
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InitializeComponent();
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}
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public BarcodeReaderForm(LB_VisionProcesses.Processes.BarcodeReaderProcess process, string processPath)
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{
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InitializeComponent();
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_process = process;
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_processPath = processPath;
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// 加载流程参数到 UI
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if (_process.Params.Inputs.ContainsKey("设备品牌"))
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cmbBrand.Text = _process.Params.Inputs["设备品牌"].ToString();
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if (_process.Params.Inputs.ContainsKey("设备SN"))
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cmbSN.Text = _process.Params.Inputs["设备SN"].ToString();
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if (_process.Params.Inputs.ContainsKey("触发模式"))
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radSoftTrigger.Checked = _process.Params.Inputs["触发模式"].ToString() == "软触发";
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if (_process.Params.Inputs.ContainsKey("超时时间"))
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txtTimeout.Text = _process.Params.Inputs["超时时间"].ToString();
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}
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private void BarcodeReaderForm_Load(object sender, EventArgs e)
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{
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// 初始化品牌列表
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cmbBrand.Items.Clear();
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foreach (var brand in Enum.GetValues(typeof(BarcodeReaderBrand)))
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{
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if ((BarcodeReaderBrand)brand != BarcodeReaderBrand.Unsupported)
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{
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cmbBrand.Items.Add(brand);
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}
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}
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if (cmbBrand.Items.Count > 0)
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cmbBrand.SelectedIndex = 0;
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UpdateUIStatus();
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}
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private void btnRefresh_Click(object sender, EventArgs e)
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{
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try
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{
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if (cmbBrand.SelectedItem == null) return;
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var brand = (BarcodeReaderBrand)cmbBrand.SelectedItem;
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using (var tempReader = BarcodeReaderFactory.CreateReader(brand))
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{
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var devices = tempReader.GetDeviceList();
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cmbSN.Items.Clear();
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if (devices != null && devices.Count > 0)
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{
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cmbSN.Items.AddRange(devices.ToArray());
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cmbSN.SelectedIndex = 0;
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}
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}
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lblStatus.Text = $"设备列表已刷新，找到 {cmbSN.Items.Count} 个设备";
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}
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catch (Exception ex)
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{
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MessageBox.Show($"刷新设备列表失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void btnOpen_Click(object sender, EventArgs e)
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{
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try
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{
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if (cmbSN.SelectedItem == null && string.IsNullOrEmpty(cmbSN.Text))
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{
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MessageBox.Show("请选择或输入设备序列号");
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return;
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}
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_currentSN = cmbSN.Text;
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var brand = (BarcodeReaderBrand)cmbBrand.SelectedItem;
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if (_reader != null)
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{
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_reader.BarcodeRead -= Reader_BarcodeRead;
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_reader.Dispose();
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}
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_reader = BarcodeReaderFactory.CreateReader(brand);
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_reader.BarcodeRead += Reader_BarcodeRead;
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if (_reader.Open(_currentSN))
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{
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lblStatus.Text = $"设备 {_currentSN} 已打开";
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UpdateUIStatus();
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}
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else
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{
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MessageBox.Show("设备打开失败，请检查连接或占用状态");
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show($"打开设备异常: {ex.Message}");
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}
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}
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private void btnClose_Click(object sender, EventArgs e)
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{
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if (_reader != null)
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{
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_reader.Close();
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lblStatus.Text = "设备已关闭";
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UpdateUIStatus();
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}
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}
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private void btnStart_Click(object sender, EventArgs e)
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{
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if (_reader != null && _reader.IsConnected)
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{
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// 设置触发模式（根据 UI 选择）
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_reader.SetTriggerMode(radSoftTrigger.Checked);
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if (_reader.StartGrabbing())
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{
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lblStatus.Text = "采集已开始";
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UpdateUIStatus();
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}
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}
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}
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private void btnStop_Click(object sender, EventArgs e)
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{
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if (_reader != null && _reader.IsGrabbing)
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{
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if (_reader.StopGrabbing())
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{
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lblStatus.Text = "采集已停止";
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UpdateUIStatus();
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}
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}
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}
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private void btnSoftTrigger_Click(object sender, EventArgs e)
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{
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if (_reader != null && _reader.IsGrabbing)
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{
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_reader.SoftTrigger();
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lblStatus.Text = "已执行软触发";
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}
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else
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{
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lblStatus.Text = "请先开始采集再执行触发";
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}
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}
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private void radTrigger_CheckedChanged(object sender, EventArgs e)
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{
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if (_reader != null && _reader.IsConnected)
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{
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_reader.SetTriggerMode(radSoftTrigger.Checked);
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lblStatus.Text = radSoftTrigger.Checked ? "已切换至软触发模式" : "已切换至硬触发/自动模式";
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}
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}
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private void Reader_BarcodeRead(object sender, BarcodeEventArgs e)
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{
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// 异步更新 UI
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if (this.InvokeRequired)
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{
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this.BeginInvoke(new Action<object, BarcodeEventArgs>(Reader_BarcodeRead), sender, e);
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return;
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}
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try
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{
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// 更新结果列表
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lstBarcodes.Items.Clear();
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if (e.Barcodes != null && e.Barcodes.Count > 0)
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{
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foreach (var code in e.Barcodes)
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{
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lstBarcodes.Items.Add($"{DateTime.Now:HH:mm:ss} - {code}");
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}
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}
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else
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{
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lstBarcodes.Items.Add($"{DateTime.Now:HH:mm:ss} - 未读到条码");
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}
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// 更新预览图像
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if (e.Image != null)
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{
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// 释放旧图像，防止内存泄漏
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var oldImg = picPreview.Image;
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picPreview.Image = new Bitmap(e.Image); // 拷贝一份防止被 SDK 内部释放
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oldImg?.Dispose();
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}
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}
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catch (Exception ex)
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{
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// 静默处理 UI 更新异常
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Console.WriteLine($"UI更新异常: {ex.Message}");
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}
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}
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private void UpdateUIStatus()
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{
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bool isConnected = _reader?.IsConnected ?? false;
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bool isGrabbing = _reader?.IsGrabbing ?? false;
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btnOpen.Enabled = !isConnected;
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btnClose.Enabled = isConnected;
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cmbBrand.Enabled = !isConnected;
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cmbSN.Enabled = !isConnected;
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btnRefresh.Enabled = !isConnected;
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btnStart.Enabled = isConnected && !isGrabbing;
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btnStop.Enabled = isGrabbing;
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btnSoftTrigger.Enabled = isGrabbing && radSoftTrigger.Checked;
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grpParams.Enabled = isConnected;
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}
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private void BarcodeReaderForm_FormClosing(object sender, FormClosingEventArgs e)
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{
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// 关闭前保存参数到流程
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if (_process != null)
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{
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_process.Params.Inputs["设备品牌"] = cmbBrand.Text;
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_process.Params.Inputs["设备SN"] = cmbSN.Text;
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_process.Params.Inputs["触发模式"] = radSoftTrigger.Checked ? "软触发" : "硬触发";
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if (int.TryParse(txtTimeout.Text, out int timeout))
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_process.Params.Inputs["超时时间"] = timeout;
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_process.Save(_processPath);
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}
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if (_reader != null)
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{
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if (_reader.IsGrabbing) _reader.StopGrabbing();
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_reader.Close();
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_reader.BarcodeRead -= Reader_BarcodeRead;
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_reader.Dispose();
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_reader = null;
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}
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}
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}
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}
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