From fd4048a6c0b98716c53f733c0bd595d36dd0ad95 Mon Sep 17 00:00:00 2001
From: "zhengxuan.zhang" <zhengxuan.zhang@hexagon.com>
Date: Wed, 6 May 2026 10:01:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E7=AE=97=E5=AD=90=E5=B7=A5?=
 =?UTF-8?q?=E5=85=B7=E7=AE=B1=E6=90=9C=E7=B4=A2=E5=8A=9F=E8=83=BD?=
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---
 .../ImageProcessing/OperatorToolboxViewModel.cs        | 10 ++++++++++
 .../Views/ImageProcessing/OperatorToolboxView.xaml     |  1 +
 .../Views/ImageProcessing/OperatorToolboxWindow.xaml   |  3 ++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs b/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs
index 2eb128c..b704c3f 100644
--- a/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs
+++ b/XplorePlane/ViewModels/ImageProcessing/OperatorToolboxViewModel.cs
@@ -36,6 +36,7 @@ namespace XplorePlane.ViewModels
     {
         private readonly IImageProcessingService _imageProcessingService;
         private string _searchText = string.Empty;
+        private OperatorGroupViewModel _selectedGroup;
 
         // UI 元数据（分类 + 图标）由 ProcessorUiMetadata 统一提供，保持工具箱与流水线图标一致
 
@@ -52,6 +53,12 @@ namespace XplorePlane.ViewModels
         public ObservableCollection<OperatorDescriptor> FilteredOperators { get; }
         public ObservableCollection<OperatorGroupViewModel> FilteredGroups { get; }
 
+        public OperatorGroupViewModel SelectedGroup
+        {
+            get => _selectedGroup;
+            set => SetProperty(ref _selectedGroup, value);
+        }
+
         public string SearchText
         {
             get => _searchText;
@@ -78,6 +85,7 @@ namespace XplorePlane.ViewModels
         {
             FilteredOperators.Clear();
             FilteredGroups.Clear();
+            SelectedGroup = null;
 
             var filtered = string.IsNullOrWhiteSpace(SearchText)
                 ? AvailableOperators
@@ -101,6 +109,8 @@ namespace XplorePlane.ViewModels
                     Operators = new ObservableCollection<OperatorDescriptor>(group)
                 });
             }
+
+            SelectedGroup = FilteredGroups.FirstOrDefault();
         }
 
         private static int GetCategoryOrder(string category) => category switch
diff --git a/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml b/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml
index f23a1f7..9c5ff9d 100644
--- a/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml
+++ b/XplorePlane/Views/ImageProcessing/OperatorToolboxView.xaml
@@ -100,6 +100,7 @@
                 <TabControl x:Name="ToolboxListBox"
                             Margin="8"
                             ItemContainerStyle="{StaticResource OperatorToolboxTabItemStyle}"
+                            SelectedItem="{Binding SelectedGroup, Mode=TwoWay}"
                             ItemsSource="{Binding FilteredGroups}">
                     <TabControl.ItemTemplate>
                         <DataTemplate>
diff --git a/XplorePlane/Views/ImageProcessing/OperatorToolboxWindow.xaml b/XplorePlane/Views/ImageProcessing/OperatorToolboxWindow.xaml
index 255ecbc..e07fbab 100644
--- a/XplorePlane/Views/ImageProcessing/OperatorToolboxWindow.xaml
+++ b/XplorePlane/Views/ImageProcessing/OperatorToolboxWindow.xaml
@@ -3,7 +3,8 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:views="clr-namespace:XplorePlane.Views"
         Title="算子工具箱"
-        Width="500" Height="560"
+        Width="460" Height="540"
+        MinWidth="420" MinHeight="500"
         WindowStartupLocation="CenterOwner"
         ShowInTaskbar="False"
         WindowStyle="None"