读码器功能集成完成

C3032

2026-03-20 19bf97fd8ec4f435e9111d72969c4ebf00d97991

 LB_VisionProcesses/BarcodeReaders/BarcodeReaderForm.cs

@@ -22,6 +22,18 @@
            InitializeComponent();
        }

        public BarcodeReaderForm(IBarcodeReader reader)
        {
            InitializeComponent();
            _reader = reader;
            _reader.BarcodeRead += Reader_BarcodeRead;
            _currentSN = _reader.IsConnected ? "设备已在线" : "";

            // 同步 UI 状态
            cmbBrand.Text = _reader.Brand.ToString();
            cmbSN.Text = _reader.IsConnected ? "在线设备" : "";
        }

        public BarcodeReaderForm(LB_VisionProcesses.Processes.BarcodeReaderProcess process, string processPath)
        {
            InitializeComponent();
@@ -192,11 +204,11 @@
            {
                // 更新结果列表
                lstBarcodes.Items.Clear();
                if (e.Barcodes != null && e.Barcodes.Count > 0)
                if (e.BarcodeInfos != null && e.BarcodeInfos.Count > 0)
                {
                    foreach (var code in e.Barcodes)
                    foreach (var info in e.BarcodeInfos)
                    {
                        lstBarcodes.Items.Add($"{DateTime.Now:HH:mm:ss} - {code}");
                        lstBarcodes.Items.Add($"{DateTime.Now:HH:mm:ss} - {info.Text}");
                    }
                }
                else
@@ -204,12 +216,40 @@
                    lstBarcodes.Items.Add($"{DateTime.Now:HH:mm:ss} - 未读到条码");
                }

                // 更新预览图像
                // 更新预览图像并绘制标注
                if (e.Image != null)
                {
                    // 创建新位图用于绘图，不直接修改 SDK 传入的原图
                    Bitmap drawImg = new Bitmap(e.Image);
                    using (Graphics g = Graphics.FromImage(drawImg))
                    {
                        // 设置绘图质量
                        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
                        
                        using (Pen pen = new Pen(Color.LimeGreen, 3))
                        using (SolidBrush brush = new SolidBrush(Color.LimeGreen))
                        using (Font font = new Font("Arial", 16, FontStyle.Bold))
                        {
                            foreach (var info in e.BarcodeInfos)
                            {
                                if (info.Points != null && info.Points.Length >= 4)
                                {
                                    // 绘制四边形框
                                    g.DrawPolygon(pen, info.Points);

                                    // 在第一个点上方绘制条码内容
                                    // 计算绘制文本的位置（稍微偏移一点防止覆盖边框）
                                    Point textPos = info.Points[0];
                                    textPos.Y -= 25;
                                    g.DrawString(info.Text, font, brush, textPos);
                                }
                            }
                        }
                    }

                    // 释放旧图像，防止内存泄漏
                    var oldImg = picPreview.Image;
                    picPreview.Image = new Bitmap(e.Image); // 拷贝一份防止被 SDK 内部释放
                    picPreview.Image = drawImg;
                    oldImg?.Dispose();
                }
            }