Add Setting for Changing Font in Settings Window

Flow.Launcher.Infrastructure/UserSettings/Settings.cs

@@ -31,7 +31,7 @@ public void Save()
         {
             _storage.Save();
         }
-        
+
         private string _theme = Constant.DefaultTheme;
         public string Hotkey { get; set; } = $"{KeyConstant.Alt} + {KeyConstant.Space}";
         public string OpenResultModifiers { get; set; } = KeyConstant.Alt;
@@ -96,6 +96,7 @@ public string Theme
         public string ResultSubFontStyle { get; set; }
         public string ResultSubFontWeight { get; set; }
         public string ResultSubFontStretch { get; set; }
+        public string SettingWindowFont { get; set; } = Win32Helper.GetSystemDefaultFont(false);
         public bool UseGlyphIcons { get; set; } = true;
         public bool UseAnimation { get; set; } = true;
         public bool UseSound { get; set; } = true;

Flow.Launcher.Infrastructure/Win32Helper.cs

@@ -628,21 +628,33 @@ public static void OpenImeSettings()
             { "pt", "Noto Sans" }
         };
 
-        public static string GetSystemDefaultFont()
+        /// <summary>
+        /// Gets the system default font.
+        /// </summary>
+        /// <param name="useNoto">
+        /// If true, it will try to find the Noto font for the current culture.
+        /// </param>
+        /// <returns>
+        /// The name of the system default font.
+        /// </returns>
+        public static string GetSystemDefaultFont(bool useNoto = true)
         {
             try
             {
-                var culture = CultureInfo.CurrentCulture;
-                var language = culture.Name; // e.g., "zh-TW"
-                var langPrefix = language.Split('-')[0]; // e.g., "zh"
-
-                // First, try to find by full name, and if not found, fallback to prefix
-                if (TryGetNotoFont(language, out var notoFont) || TryGetNotoFont(langPrefix, out notoFont))
+                if (useNoto)
                 {
-                    // If the font is installed, return it
-                    if (Fonts.SystemFontFamilies.Any(f => f.Source.Equals(notoFont)))
+                    var culture = CultureInfo.CurrentCulture;
+                    var language = culture.Name; // e.g., "zh-TW"
+                    var langPrefix = language.Split('-')[0]; // e.g., "zh"
+
+                    // First, try to find by full name, and if not found, fallback to prefix
+                    if (TryGetNotoFont(language, out var notoFont) || TryGetNotoFont(langPrefix, out notoFont))
                     {
-                        return notoFont;
+                        // If the font is installed, return it
+                        if (Fonts.SystemFontFamilies.Any(f => f.Source.Equals(notoFont)))
+                        {
+                            return notoFont;
+                        }
                     }
                 }
 

Flow.Launcher/SettingPages/ViewModels/SettingsPaneAboutViewModel.cs

@@ -268,4 +268,24 @@ private static string BytesToReadableString(long bytes)
 
         return "0 B";
     }
+
+    public string SettingWindowFont
+    {
+        get => _settings.SettingWindowFont;
+        set
+        {
+            if (_settings.SettingWindowFont != value)
+            {
+                _settings.SettingWindowFont = value;
+                OnPropertyChanged();
+            }
+        }
+    }
+
+    [RelayCommand]
+    private void ResetSettingWindowFont()
+    {
+        string defaultFont = Win32Helper.GetSystemDefaultFont(false);
+        _settings.SettingWindowFont = defaultFont;
+    }
 }

Flow.Launcher/SettingPages/Views/SettingsPaneAbout.xaml

@@ -12,6 +12,11 @@
     d:DesignHeight="450"
     d:DesignWidth="800"
     mc:Ignorable="d">
+    <ui:Page.Resources>
+        <ResourceDictionary>
+            <CollectionViewSource x:Key="SortedFonts" Source="{Binding Source={x:Static Fonts.SystemFontFamilies}}" />
+        </ResourceDictionary>
+    </ui:Page.Resources>
     <ScrollViewer
         Margin="0"
         CanContentScroll="True"
@@ -127,13 +132,40 @@
                 </StackPanel>
             </cc:Card>
 
-            <cc:Card Title="{DynamicResource logLevel}" Icon="&#xE749;">
-                <ComboBox
-                    DisplayMemberPath="Display"
-                    ItemsSource="{Binding LogLevels}"
-                    SelectedValue="{Binding LogLevel}"
-                    SelectedValuePath="Value" />
-            </cc:Card>
+            <cc:ExCard
+                Title="Advanced"
+                Margin="0 14 0 0"
+                Icon="&#xE8B7;">
+                <StackPanel>
+                    <cc:Card
+                        Title="{DynamicResource logLevel}"
+                        Icon="&#xE749;"
+                        Type="Inside">
+                        <ComboBox
+                            DisplayMemberPath="Display"
+                            ItemsSource="{Binding LogLevels}"
+                            SelectedValue="{Binding LogLevel}"
+                            SelectedValuePath="Value" />
+                    </cc:Card>
+                    <cc:Card
+                        Title="Setting Window Font"
+                        Icon="&#xf259;"
+                        Type="Inside">
+                        <StackPanel Orientation="Horizontal">
+                            <Button Command="{Binding ResetSettingWindowFontCommand}" Content="Reset" />
+                            <ComboBox
+                                Margin="12 8 0 8"
+                                HorizontalAlignment="Stretch"
+                                VerticalAlignment="Top"
+                                DisplayMemberPath="Source"
+                                ItemsSource="{Binding Source={StaticResource SortedFonts}}"
+                                SelectedValue="{Binding SettingWindowFont, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                                SelectedValuePath="Source"
+                                SelectionChanged="SettingWindowFontComboBox_SelectionChanged" />
+                        </StackPanel>
+                    </cc:Card>
+                </StackPanel>
+            </cc:ExCard>
 
             <TextBlock
                 Margin="14 20 0 0"

Flow.Launcher/SettingPages/Views/SettingsPaneAbout.xaml.cs

@@ -1,4 +1,7 @@
-using System.Windows.Navigation;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Navigation;
 using Flow.Launcher.Core;
 using Flow.Launcher.SettingPages.ViewModels;
 using Flow.Launcher.Infrastructure.UserSettings;
@@ -28,4 +31,21 @@ private void OnRequestNavigate(object sender, RequestNavigateEventArgs e)
         App.API.OpenUrl(e.Uri.AbsoluteUri);
         e.Handled = true;
     }
+
+    private void SettingWindowFontComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
+    {
+        if (sender is ComboBox comboBox && comboBox.SelectedItem is FontFamily selectedFont)
+        {
+            if (DataContext is SettingsPaneAboutViewModel viewModel)
+            {
+                viewModel.SettingWindowFont = selectedFont.Source;
+
+                // 설정 창 글꼴 즉시 업데이트
+                if (Window.GetWindow(this) is SettingWindow settingWindow)
+                {
+                    settingWindow.FontFamily = selectedFont;
+                }
+            }
+        }
+    }
 }

Flow.Launcher/SettingWindow.xaml

@@ -13,6 +13,7 @@
     MinHeight="600"
     d:DataContext="{d:DesignInstance vm:SettingWindowViewModel}"
     Closed="OnClosed"
+    FontFamily="{Binding SettingWindowFont, Mode=TwoWay}"
     Icon="Images\app.ico"
     Left="{Binding SettingWindowLeft, Mode=TwoWay}"
     Loaded="OnLoaded"

Flow.Launcher/SettingWindow.xaml.cs

@@ -3,6 +3,7 @@
 using System.Windows.Forms;
 using System.Windows.Input;
 using System.Windows.Interop;
+using System.Windows.Media;
 using CommunityToolkit.Mvvm.DependencyInjection;
 using Flow.Launcher.Infrastructure;
 using Flow.Launcher.Infrastructure.UserSettings;

Flow.Launcher/ViewModel/SettingWindowViewModel.cs

@@ -1,11 +1,13 @@
-using Flow.Launcher.Infrastructure.UserSettings;
+using System.ComponentModel;
+using System.Windows.Media;
+using Flow.Launcher.Infrastructure.UserSettings;
 using Flow.Launcher.Plugin;
 
 namespace Flow.Launcher.ViewModel;
 
 public partial class SettingWindowViewModel : BaseModel
 {
-    private readonly Settings _settings; 
+    private readonly Settings _settings;
 
     public SettingWindowViewModel(Settings settings)
     {
@@ -43,4 +45,24 @@
         get => _settings.SettingWindowLeft;
         set => _settings.SettingWindowLeft = value;
     }
+
+    public string SettingWindowFont
+    {
+        get => _settings.SettingWindowFont;
+        set
+        {
+            if (_settings.SettingWindowFont != value)
+            {
+                _settings.SettingWindowFont = value;
+                OnPropertyChanged(nameof(SettingWindowFont));
+            }
+        }
+    }
+
+    public event PropertyChangedEventHandler PropertyChanged;
+
+    protected virtual void OnPropertyChanged(string propertyName)
+    {
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+    }
 }