feat: Add country flag icons to IP Info column

.gitignore

@@ -1,4 +1,4 @@
-## Ignore Visual Studio temporary files, build results, and
+## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 ##
 ## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
@@ -402,3 +402,6 @@ FodyWeavers.xsd
 # JetBrains Rider
 .idea/
 *.sln.iml
+
+# MiMoCode
+.mimocode/

v2rayN/ServiceLib/Handler/ConfigHandler.cs

@@ -143,6 +143,10 @@ public static class ConfigHandler
         {
             config.SpeedTestItem.UdpTestTarget = Global.UdpTestTargets.First();
         }
+        if (config.SpeedTestItem.IPAPIUrl.IsNullOrEmpty())
+        {
+            config.SpeedTestItem.IPAPIUrl = Global.IPAPIUrls.First();
+        }
 
         config.Mux4RayItem ??= new()
         {

v2rayN/ServiceLib/Models/Dto/IPAPIInfo.cs

@@ -22,7 +22,6 @@ public readonly record struct IpInfoResult(string Country, string? Ip)
 {
     public override string ToString()
     {
-        var emoji = Utils.IsWindows() ? null : Country.CountryToEmoji();
-        return $"{emoji}({Country}) {Ip}";
+        return $"({Country}) {Ip}";
     }
 }

v2rayN/v2rayN/App.xaml

@@ -20,6 +20,7 @@
             <system:Double x:Key="StdFontSize-1">11</system:Double>
 
             <conv:InverseBooleanConverter x:Key="InverseBooleanConverter" />
+            <conv:FlagImageConverter x:Key="FlagImageConverter" />
             <Thickness
                 x:Key="Margin4"
                 Bottom="4"

v2rayN/v2rayN/Base/MyDGTemplateColumn.cs

@@ -0,0 +1,8 @@
+using System.Windows.Controls;
+
+namespace v2rayN.Base;
+
+internal class MyDGTemplateColumn : DataGridTemplateColumn
+{
+    public string ExName { get; set; }
+}

v2rayN/v2rayN/Converters/FlagImageConverter.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+using System.Windows.Media.Imaging;
+using v2rayN.Helper;
+
+namespace v2rayN.Converters;
+
+public class FlagImageConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (value is string countryCode)
+        {
+            // Extract country code from formats like "(US) 1.2.3.4" or "US"
+            var code = ExtractCountryCode(countryCode);
+            return FlagImageHelper.GetFlagImage(code) ?? new BitmapImage();
+        }
+        return new BitmapImage();
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+
+    private static string? ExtractCountryCode(string? text)
+    {
+        if (string.IsNullOrEmpty(text))
+        {
+            return null;
+        }
+
+        text = text.Trim();
+
+        // Format: "(XX) IP" - extract XX
+        if (text.StartsWith("(") && text.Length >= 4)
+        {
+            var closeIdx = text.IndexOf(')');
+            if (closeIdx == 2 || closeIdx == 3)
+            {
+                return text.Substring(1, closeIdx - 1).Trim();
+            }
+        }
+
+        // Format: "XX" - just the code
+        if (text.Length == 2)
+        {
+            return text;
+        }
+
+        return null;
+    }
+}

v2rayN/v2rayN/Helper/FlagImageHelper.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Concurrent;
+using System.IO;
+using System.Windows.Media.Imaging;
+
+namespace v2rayN.Helper;
+
+public static class FlagImageHelper
+{
+    private static readonly ConcurrentDictionary<string, BitmapImage> _cache = new(StringComparer.OrdinalIgnoreCase);
+    private static readonly string _flagsDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources", "Flags");
+
+    public static BitmapImage? GetFlagImage(string? countryCode)
+    {
+        if (string.IsNullOrEmpty(countryCode) || countryCode.Length != 2)
+        {
+            return null;
+        }
+
+        var key = countryCode.ToUpperInvariant();
+        if (_cache.TryGetValue(key, out var cached))
+        {
+            return cached;
+        }
+
+        var pngPath = Path.Combine(_flagsDir, $"{key}.png");
+        if (!File.Exists(pngPath))
+        {
+            return null;
+        }
+
+        try
+        {
+            var bitmap = new BitmapImage();
+            bitmap.BeginInit();
+            bitmap.UriSource = new Uri(pngPath);
+            bitmap.CacheOption = BitmapCacheOption.OnLoad;
+            bitmap.EndInit();
+            bitmap.Freeze();
+
+            _cache[key] = bitmap;
+            return bitmap;
+        }
+        catch
+        {
+            return null;
+        }
+    }
+}

v2rayN/v2rayN/Views/ProfilesView.xaml

@@ -346,12 +346,28 @@
                         ExName="TodayUp"
                         Header="{x:Static resx:ResUI.LvTodayUploadDataAmount}" />
 
-                    <base:MyDGTextColumn
+                    <base:MyDGTemplateColumn
                         x:Name="colIpInfo"
-                        Width="100"
-                        Binding="{Binding IpInfo}"
+                        Width="180"
+                        SortMemberPath="IpInfo"
                         ExName="IpInfo"
-                        Header="{x:Static resx:ResUI.LvTestIpInfo}" />
+                        Header="{x:Static resx:ResUI.LvTestIpInfo}">
+                        <DataGridTemplateColumn.CellTemplate>
+                            <DataTemplate>
+                                <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
+                                    <Image
+                                        Width="16"
+                                        Height="12"
+                                        Margin="0,0,6,0"
+                                        Source="{Binding IpInfo, Converter={StaticResource FlagImageConverter}}"
+                                        RenderOptions.BitmapScalingMode="HighQuality" />
+                                    <TextBlock
+                                        Text="{Binding IpInfo}"
+                                        VerticalAlignment="Center" />
+                                </StackPanel>
+                            </DataTemplate>
+                        </DataGridTemplateColumn.CellTemplate>
+                    </base:MyDGTemplateColumn>
 
                     <base:MyDGTextColumn
                         x:Name="colTodayDown"

v2rayN/v2rayN/Views/ProfilesView.xaml.cs

@@ -208,7 +208,12 @@ private void LstProfiles_ColumnHeader_Click(object sender, RoutedEventArgs e)
             return;
         }
 
-        var colName = ((MyDGTextColumn)colHeader.Column).ExName;
+        var colName = colHeader.Column switch
+        {
+            MyDGTextColumn myCol => myCol.ExName,
+            MyDGTemplateColumn tplCol => tplCol.ExName,
+            _ => string.Empty
+        };
         ViewModel?.SortServer(colName);
     }
 
@@ -333,26 +338,33 @@ private void RestoreUI()
             var displayIndex = 0;
             foreach (var item in lvColumnItem)
             {
-                foreach (var item2 in lstProfiles.Columns.Cast<MyDGTextColumn>())
+                foreach (var col in lstProfiles.Columns)
                 {
-                    if (item2.ExName == item.Name)
+                    var name = col switch
+                    {
+                        MyDGTextColumn myCol => myCol.ExName,
+                        MyDGTemplateColumn tplCol => tplCol.ExName,
+                        _ => null
+                    };
+
+                    if (name != null && name.Equals(item.Name, StringComparison.CurrentCultureIgnoreCase))
                     {
                         if (item.Width < 0)
                         {
-                            item2.Visibility = Visibility.Hidden;
+                            col.Visibility = Visibility.Hidden;
                         }
                         else
                         {
-                            item2.Width = item.Width;
-                            item2.DisplayIndex = displayIndex++;
+                            col.Width = item.Width;
+                            col.DisplayIndex = displayIndex++;
                         }
                         if (item.Name.StartsWith("to", StringComparison.CurrentCultureIgnoreCase))
                         {
-                            item2.Visibility = _config.GuiItem.EnableStatistics ? Visibility.Visible : Visibility.Hidden;
+                            col.Visibility = _config.GuiItem.EnableStatistics ? Visibility.Visible : Visibility.Hidden;
                         }
                         if (item.Name.Equals("IpInfo", StringComparison.CurrentCultureIgnoreCase))
                         {
-                            item2.Visibility = _config.SpeedTestItem.IPAPIUrl.IsNotEmpty() && !_config.UiItem.HideColumnIpInfo ? Visibility.Visible : Visibility.Hidden;
+                            col.Visibility = _config.SpeedTestItem.IPAPIUrl.IsNotEmpty() && !_config.UiItem.HideColumnIpInfo ? Visibility.Visible : Visibility.Hidden;
                         }
                     }
                 }
@@ -369,14 +381,24 @@ private void StorageUI()
         try
         {
             List<ColumnItem> lvColumnItem = [];
-            foreach (var item2 in lstProfiles.Columns.Cast<MyDGTextColumn>())
+            foreach (var col in lstProfiles.Columns)
             {
-                lvColumnItem.Add(new()
+                var name = col switch
                 {
-                    Name = item2.ExName,
-                    Width = (int)(item2.Visibility == Visibility.Visible ? item2.ActualWidth : -1),
-                    Index = item2.DisplayIndex
-                });
+                    MyDGTextColumn myCol => myCol.ExName,
+                    MyDGTemplateColumn tplCol => tplCol.ExName,
+                    _ => null
+                };
+
+                if (name != null)
+                {
+                    lvColumnItem.Add(new()
+                    {
+                        Name = name,
+                        Width = (int)(col.Visibility == Visibility.Visible ? col.ActualWidth : -1),
+                        Index = col.DisplayIndex
+                    });
+                }
             }
             _config.UiItem.MainColumnItem = lvColumnItem;
         }

v2rayN/v2rayN/v2rayN.csproj

@@ -32,6 +32,9 @@
 		<Resource Include="Resources\NotifyIcon3.ico" />
 		<Resource Include="Resources\NotifyIcon4.ico" />
 		<Resource Include="Resources\v2rayN.ico" />
+		<Content Include="Resources\Flags\*.png">
+			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+		</Content>
 	</ItemGroup>
 
 	<ItemGroup>