实现导出孔数量

MainWindowViewModel.cs

@@ -1058,6 +1058,49 @@ M30";
             Console.WriteLine($"\n坐标绑定验证结果: {(allMatch ? "✓ 全部正确" : "✗ 存在问题")}");
         }
 
+        /// <summary>
+        /// 导出 CAM350 风格孔数报表
+        /// </summary>
+        public void ExportDrillUsageReport()
+        {
+            if (!HasOriginalFile)
+                throw new InvalidOperationException("没有原始文件路径，请先加载钻带文件");
+
+            if (Tools.Count == 0)
+                throw new InvalidOperationException("没有可导出的刀具数据，请先加载钻带文件");
+
+            string outputFilePath = OriginalFilePath + ".rpt";
+            ConfirmOverwriteReport(outputFilePath);
+
+            string report = DrillUsageReportExporter.GenerateReport(
+                Tools.ToList(),
+                FileNameWithoutExtension,
+                DateTime.Now);
+
+            File.WriteAllText(outputFilePath, report, CreateGb2312Encoding());
+            OpenFileExplorerAndSelectFile(outputFilePath);
+        }
+
+        private static void ConfirmOverwriteReport(string outputFilePath)
+        {
+            if (!File.Exists(outputFilePath))
+                return;
+
+            var result = System.Windows.MessageBox.Show(
+                $"孔数报表文件已存在，是否覆盖？\n\n{outputFilePath}",
+                "文件已存在",
+                MessageBoxButton.YesNo,
+                MessageBoxImage.Question);
+
+            if (result != MessageBoxResult.Yes)
+                throw new OperationCanceledException("用户取消了导出操作");
+        }
+
+        private static Encoding CreateGb2312Encoding()
+        {
+            return Encoding.GetEncoding(936);
+        }
+
         /// <summary>
         /// 打开文件资源管理器并选中指定文件
         /// </summary>