perf: 启动时合并4次文件读取解析为1次，加速右键打开大钻带

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

App.xaml.cs

@@ -36,10 +36,25 @@ namespace DrillTools
             // 防止选择窗口关闭后触发 OnLastWindowClose 导致应用退出
             ShutdownMode = ShutdownMode.OnExplicitShutdown;
 
-            bool canClearParameters = CanClearDrillTapeParameters(filePath);
+            // 只读取和解析文件一次，提取所有需要的信息
-            bool canGeneratePpDrillTape = CanGeneratePpDrillTape(filePath);
+            string content = CommandTypeFileReader.ReadAllText(filePath);
-            GetMinDiameters(filePath, out double minDrill, out double minSlot, out double minEA);
+            var viewModel = new MainWindowViewModel
-            GetPpSpacing(filePath, out bool isPpDrillTape, out double ppXSpacing, out double ppYSpacing);
+            {
+                IsStartupDrillTapeFile = true,
+                OriginalFilePath = filePath,
+                ShouldCheckSortFileOnLoad = false
+            };
+            viewModel.LoadToolsFromDrillTape(content);
+
+            bool canClearParameters = DrillTapeParameterCleaner.CanClearParameters(content);
+            bool canGeneratePpDrillTape = viewModel.CanGeneratePpDrillTape;
+            double minDrill = viewModel.MinDrillDiameter;
+            double minSlot = viewModel.MinSlotDiameter;
+            double minEA = viewModel.MinEADiameter;
+            bool isPpDrillTape = viewModel.IsPpDrillTape;
+            double ppXSpacing = viewModel.PpXSpacing;
+            double ppYSpacing = viewModel.PpYSpacing;
+
             var selectionWindow = new StartupSelectionWindow(filePath, canClearParameters, canGeneratePpDrillTape, minDrill, minSlot, minEA, isPpDrillTape, ppXSpacing, ppYSpacing);
             selectionWindow.ShowDialog();
 
@@ -114,93 +129,6 @@ namespace DrillTools
             }
         }
 
-        private static bool CanClearDrillTapeParameters(string filePath)
-        {
-            try
-            {
-                string content = CommandTypeFileReader.ReadAllText(filePath);
-                return DrillTapeParameterCleaner.CanClearParameters(content);
-            }
-            catch
-            {
-                return false;
-            }
-        }
-
-        private static bool CanGeneratePpDrillTape(string filePath)
-        {
-            try
-            {
-                var viewModel = new MainWindowViewModel
-                {
-                    IsStartupDrillTapeFile = true,
-                    OriginalFilePath = filePath,
-                    ShouldCheckSortFileOnLoad = false
-                };
-
-                string content = CommandTypeFileReader.ReadAllText(filePath);
-                viewModel.LoadToolsFromDrillTape(content);
-                return viewModel.CanGeneratePpDrillTape;
-            }
-            catch
-            {
-                return false;
-            }
-        }
-
-        private static void GetMinDiameters(string filePath, out double minDrillDiameter, out double minSlotDiameter, out double minEADiameter)
-        {
-            minDrillDiameter = 0;
-            minSlotDiameter = 0;
-            minEADiameter = 0;
-
-            try
-            {
-                var viewModel = new MainWindowViewModel
-                {
-                    ShouldCheckSortFileOnLoad = false
-                };
-
-                string content = CommandTypeFileReader.ReadAllText(filePath);
-                viewModel.LoadToolsFromDrillTape(content);
-
-                if (viewModel.Tools.Count > 0)
-                {
-                    minDrillDiameter = viewModel.MinDrillDiameter;
-                    minSlotDiameter = viewModel.MinSlotDiameter;
-                    minEADiameter = viewModel.MinEADiameter;
-                }
-            }
-            catch
-            {
-            }
-        }
-
-        private static void GetPpSpacing(string filePath, out bool isPpDrillTape, out double ppXSpacing, out double ppYSpacing)
-        {
-            isPpDrillTape = false;
-            ppXSpacing = 0;
-            ppYSpacing = 0;
-
-            try
-            {
-                var viewModel = new MainWindowViewModel
-                {
-                    OriginalFilePath = filePath,
-                    ShouldCheckSortFileOnLoad = false
-                };
-
-                string content = CommandTypeFileReader.ReadAllText(filePath);
-                viewModel.LoadToolsFromDrillTape(content);
-
-                isPpDrillTape = viewModel.IsPpDrillTape;
-                ppXSpacing = viewModel.PpXSpacing;
-                ppYSpacing = viewModel.PpYSpacing;
-            }
-            catch
-            {
-            }
-        }
 
         private static void PerformPpDrillTapeGeneration(string filePath)
         {