调整CNC树形结构风格，简化界面

XplorePlane/ViewModels/Cnc/CncEditorViewModel.cs

@@ -30,10 +30,11 @@ namespace XplorePlane.ViewModels.Cnc
         private CncProgram _currentProgram;
         private ObservableCollection<CncNodeViewModel> _nodes;
         private ObservableCollection<CncNodeViewModel> _treeNodes;
+        private ObservableCollection<CncProgramTreeRootViewModel> _programTreeRoots;
         private CncNodeViewModel _selectedNode;
         private bool _isModified;
         private string _programName;
-        private string _programDisplayName = "NewCncProgram";
+        private string _programDisplayName = "新建检测程序.xp";
         private Guid? _preferredSelectedNodeId;
 
         public CncEditorViewModel(
@@ -49,6 +50,10 @@ namespace XplorePlane.ViewModels.Cnc
 
             _nodes = new ObservableCollection<CncNodeViewModel>();
             _treeNodes = new ObservableCollection<CncNodeViewModel>();
+            _programTreeRoots = new ObservableCollection<CncProgramTreeRootViewModel>
+            {
+                new CncProgramTreeRootViewModel(_programDisplayName, _treeNodes)
+            };
 
             InsertReferencePointCommand = new DelegateCommand(() => ExecuteInsertNode(CncNodeType.ReferencePoint));
             InsertSaveNodeWithImageCommand = new DelegateCommand(() => ExecuteInsertNode(CncNodeType.SaveNodeWithImage));
@@ -85,6 +90,12 @@ namespace XplorePlane.ViewModels.Cnc
             private set => SetProperty(ref _treeNodes, value);
         }
 
+        public ObservableCollection<CncProgramTreeRootViewModel> ProgramTreeRoots
+        {
+            get => _programTreeRoots;
+            private set => SetProperty(ref _programTreeRoots, value);
+        }
+
         public CncNodeViewModel SelectedNode
         {
             get => _selectedNode;
@@ -114,7 +125,11 @@ namespace XplorePlane.ViewModels.Cnc
         public string ProgramDisplayName
         {
             get => _programDisplayName;
-            private set => SetProperty(ref _programDisplayName, value);
+            private set
+            {
+                if (SetProperty(ref _programDisplayName, value) && ProgramTreeRoots?.Count > 0)
+                    ProgramTreeRoots[0].DisplayName = value;
+            }
         }
 
         public DelegateCommand InsertReferencePointCommand { get; }
@@ -300,7 +315,7 @@ namespace XplorePlane.ViewModels.Cnc
 
         private void ExecuteNewProgram()
         {
-            var name = string.IsNullOrWhiteSpace(ProgramName) ? "NewCncProgram" : ProgramName;
+            const string name = "新建检测程序";
             _currentProgram = _cncProgramService.CreateProgram(name);
             ProgramName = _currentProgram.Name;
             ProgramDisplayName = FormatProgramDisplayName(_currentProgram.Name);
@@ -427,6 +442,10 @@ namespace XplorePlane.ViewModels.Cnc
 
             Nodes = new ObservableCollection<CncNodeViewModel>(flatNodes);
             TreeNodes = new ObservableCollection<CncNodeViewModel>(rootNodes);
+            ProgramTreeRoots = new ObservableCollection<CncProgramTreeRootViewModel>
+            {
+                new CncProgramTreeRootViewModel(ProgramDisplayName, TreeNodes)
+            };
 
             SelectedNode = selectedId.HasValue
                 ? Nodes.FirstOrDefault(node => node.Id == selectedId.Value) ?? Nodes.LastOrDefault()
@@ -635,7 +654,7 @@ namespace XplorePlane.ViewModels.Cnc
 
         private static string FormatProgramDisplayName(string programName)
         {
-            var name = string.IsNullOrWhiteSpace(programName) ? "NewCncProgram" : programName;
+            var name = string.IsNullOrWhiteSpace(programName) ? "新建检测程序" : programName;
             return name.EndsWith(".xp", StringComparison.OrdinalIgnoreCase) ? name : $"{name}.xp";
         }
     }

XplorePlane/ViewModels/Cnc/CncProgramTreeRootViewModel.cs

@@ -0,0 +1,31 @@
+using Prism.Mvvm;
+using System.Collections.ObjectModel;
+
+namespace XplorePlane.ViewModels.Cnc
+{
+    public class CncProgramTreeRootViewModel : BindableBase
+    {
+        private string _displayName;
+        private bool _isExpanded = true;
+
+        public CncProgramTreeRootViewModel(string displayName, ObservableCollection<CncNodeViewModel> children)
+        {
+            _displayName = displayName;
+            Children = children;
+        }
+
+        public string DisplayName
+        {
+            get => _displayName;
+            set => SetProperty(ref _displayName, value);
+        }
+
+        public bool IsExpanded
+        {
+            get => _isExpanded;
+            set => SetProperty(ref _isExpanded, value);
+        }
+
+        public ObservableCollection<CncNodeViewModel> Children { get; }
+    }
+}

XplorePlane/Views/Cnc/CncPageView.xaml

@@ -91,44 +91,53 @@
 
             <Grid Grid.Column="0">
                 <Grid.RowDefinitions>
-                    <RowDefinition Height="Auto" />
                     <RowDefinition Height="*" />
                 </Grid.RowDefinitions>
 
-                <Border
-                    Grid.Row="0"
-                    Padding="10,8"
-                    Background="{StaticResource HeaderBg}"
-                    BorderBrush="{StaticResource SeparatorBrush}"
-                    BorderThickness="0,0,0,1">
-                    <StackPanel>
-                        <TextBlock
-                            FontFamily="{StaticResource UiFont}"
-                            FontSize="13"
-                            FontWeight="SemiBold"
-                            Text="{Binding ProgramDisplayName, TargetNullValue=CNC编辑}"
-                            TextWrapping="Wrap" />
-                        <TextBlock
-                            Margin="0,3,0,0"
-                            FontFamily="{StaticResource UiFont}"
-                            FontSize="10"
-                            Foreground="#666666"
-                            Text="新建或加载已有的CNC检测程序，后缀.xp。"
-                            TextWrapping="Wrap" />
-                    </StackPanel>
-                </Border>
-
                 <TreeView
                     x:Name="CncTreeView"
-                    Grid.Row="1"
+                    Grid.Row="0"
                     Padding="4,6"
                     Background="Transparent"
                     BorderThickness="0"
-                    ItemsSource="{Binding TreeNodes}"
+                    ItemsSource="{Binding ProgramTreeRoots}"
                     PreviewKeyDown="CncTreeView_PreviewKeyDown"
                     SelectedItemChanged="CncTreeView_SelectedItemChanged">
                     <TreeView.Resources>
-                        <HierarchicalDataTemplate DataType="{x:Type vm:CncNodeViewModel}" ItemsSource="{Binding Children}">
+                        <HierarchicalDataTemplate
+                            DataType="{x:Type vm:CncProgramTreeRootViewModel}"
+                            ItemContainerStyle="{StaticResource TreeItemStyle}"
+                            ItemsSource="{Binding Children}">
+                            <Border
+                                Margin="0,1,0,3"
+                                Padding="2,4"
+                                Background="Transparent"
+                                BorderBrush="Transparent"
+                                BorderThickness="1"
+                                CornerRadius="4">
+                                <StackPanel Orientation="Horizontal">
+                                    <TextBlock
+                                        Margin="2,0,6,0"
+                                        VerticalAlignment="Center"
+                                        FontFamily="{StaticResource UiFont}"
+                                        FontSize="13"
+                                        Foreground="#2B8A3E"
+                                        Text="◆" />
+                                    <TextBlock
+                                        VerticalAlignment="Center"
+                                        FontFamily="{StaticResource UiFont}"
+                                        FontSize="13"
+                                        FontWeight="SemiBold"
+                                        Text="{Binding DisplayName}"
+                                        TextTrimming="CharacterEllipsis" />
+                                </StackPanel>
+                            </Border>
+                        </HierarchicalDataTemplate>
+
+                        <HierarchicalDataTemplate
+                            DataType="{x:Type vm:CncNodeViewModel}"
+                            ItemContainerStyle="{StaticResource TreeItemStyle}"
+                            ItemsSource="{Binding Children}">
                             <Border
                                 x:Name="NodeCard"
                                 Margin="0,1,0,1"