From cf420e72f30acae166eb7e6675c00251fdb158f8 Mon Sep 17 00:00:00 2001
From: "DESKTOP-3BO4HSG\\ksat" <zggsong@foxmail.com>
Date: Mon, 26 Dec 2022 11:42:24 +0800
Subject: [PATCH] feat: add English and Chinese language recognition

---
 STranslate/MainWindow.xaml            | 41 ++++++++++++++------
 STranslate/MainWindow.xaml.cs         |  4 +-
 STranslate/Properties/AssemblyInfo.cs |  4 +-
 STranslate/ViewModel/MainVM.cs        | 54 +++++++++++++++++++++++----
 4 files changed, 80 insertions(+), 23 deletions(-)

diff --git a/STranslate/MainWindow.xaml b/STranslate/MainWindow.xaml
index 233aada..b618f72 100644
--- a/STranslate/MainWindow.xaml
+++ b/STranslate/MainWindow.xaml
@@ -106,19 +106,36 @@
                                 <KeyBinding Command="{Binding TranslateCmd}" Key="Enter" />
                             </TextBox.InputBindings>
                         </TextBox>
-                        <Button Cursor="Hand"
-                                Margin="5,0,0,5"
-                                HorizontalAlignment="Left"
-                                VerticalAlignment="Bottom"
+                        <StackPanel Orientation="Horizontal"
+                                    Margin="5">
+                            <Button Cursor="Hand"
+                                    Margin="5,0,0,5"
+                                    HorizontalAlignment="Left"
+                                    VerticalAlignment="Bottom"
                                     Visibility="{Binding InputTxt,Converter={StaticResource String2VisibilityConverter}}"
-                                Command="{Binding CopyInputCmd}">
-                            <Image Source="/Images/copy2.png"/>
-                            <hc:FloatingBlock.ContentTemplate>
-                                <DataTemplate>
-                                    <TextBlock Text="copied" />
-                                </DataTemplate>
-                            </hc:FloatingBlock.ContentTemplate>
-                        </Button>
+                                    Command="{Binding CopyInputCmd}">
+                                <Image Source="/Images/copy2.png"/>
+                                <hc:FloatingBlock.ContentTemplate>
+                                    <DataTemplate>
+                                        <TextBlock Text="copied" />
+                                    </DataTemplate>
+                                </hc:FloatingBlock.ContentTemplate>
+                            </Button>
+                            <Border Margin="10,0,0,8"
+                                    Background="#eaeaea"
+                                    CornerRadius="10"
+                                    Visibility="{Binding IdentifyLanguage,Converter={StaticResource String2VisibilityConverter}}"
+                                    HorizontalAlignment="Left"
+                                    VerticalAlignment="Bottom">
+                                <StackPanel Margin="5,2"
+                                            Orientation="Horizontal">
+                                    <TextBlock Text="识别为 "
+                                                Foreground="#999999"/>
+                                    <TextBlock Text="{Binding IdentifyLanguage}"
+                                                Foreground="#3478f6"/>
+                                </StackPanel>
+                            </Border>
+                        </StackPanel>
                     </Grid>
                 </Border>
             </Grid>
diff --git a/STranslate/MainWindow.xaml.cs b/STranslate/MainWindow.xaml.cs
index 6d01640..ee3c49a 100644
--- a/STranslate/MainWindow.xaml.cs
+++ b/STranslate/MainWindow.xaml.cs
@@ -178,8 +178,10 @@ namespace STranslate
         {
             vm.InputTxt = string.Empty;
             vm.OutputTxt = string.Empty;
-            vm.SmallHumpRet = string.Empty;
             vm.SnakeRet = string.Empty;
+            vm.SmallHumpRet = string.Empty;
+            vm.LargeHumpRet = string.Empty;
+            vm.IdentifyLanguage = string.Empty;
         }
 
         /// <summary>
diff --git a/STranslate/Properties/AssemblyInfo.cs b/STranslate/Properties/AssemblyInfo.cs
index dfb2b7b..4a595f1 100644
--- a/STranslate/Properties/AssemblyInfo.cs
+++ b/STranslate/Properties/AssemblyInfo.cs
@@ -47,6 +47,6 @@ using System.Windows;
 //可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
 //通过使用 "*"，如下所示:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.0.5.0")]
-[assembly: AssemblyFileVersion("0.0.5.0")]
+[assembly: AssemblyVersion("0.0.6.0")]
+[assembly: AssemblyFileVersion("0.0.6.0")]
 [assembly: Guid("CE252DD8-179F-4544-9989-453F5DEA378D")]
\ No newline at end of file
diff --git a/STranslate/ViewModel/MainVM.cs b/STranslate/ViewModel/MainVM.cs
index 2525932..1ffa67d 100644
--- a/STranslate/ViewModel/MainVM.cs
+++ b/STranslate/ViewModel/MainVM.cs
@@ -32,7 +32,7 @@ namespace STranslate.ViewModel
             InputCombo = LanguageEnumDict.Keys.ToList();
             InputComboSelected = LanguageEnum.AUTO.GetDescription();
             OutputCombo = LanguageEnumDict.Keys.ToList();
-            OutputComboSelected = LanguageEnum.EN.GetDescription();
+            OutputComboSelected = LanguageEnum.AUTO.GetDescription();
 
             config = ConfigUtil.ReadConfig(ConfigPath);
 
@@ -73,17 +73,47 @@ namespace STranslate.ViewModel
         }
 
         #region handle
-
+        /// <summary>
+        /// 自动识别语种
+        /// </summary>
+        /// <param name="text">输入语言</param>
+        /// <returns>
+        ///     Item1: SourceLang
+        ///     Item2: TargetLang
+        /// </returns>
+        private Tuple<string, string> AutomaticLanguageRecognition(string text)
+        {
+            //如果输入是中文
+            if (System.Text.RegularExpressions.Regex.IsMatch(text, @"^[\u4e00-\u9fa5]+$"))
+            {
+                return new Tuple<string, string>(LanguageEnum.ZH.GetDescription(), LanguageEnum.EN.GetDescription());
+            }
+            else
+            {
+                return new Tuple<string, string>(LanguageEnum.EN.GetDescription(), LanguageEnum.ZH.GetDescription());
+            }
+        }
+        /// <summary>
+        /// 翻译
+        /// </summary>
+        /// <returns></returns>
         public async Task Translate()
         {
             try
             {
                 OutputTxt = "翻译中...";
 
-                //获取结果
-
-                //DeepL Api
-                var translateResp = await TranslateUtil.TranslateDeepLAsync(config.deepl?.url ?? defaultApi, InputTxt, LanguageEnumDict[OutputComboSelected], LanguageEnumDict[InputComboSelected]);
+                //自动选择目标语言
+                if (OutputComboSelected == LanguageEnum.AUTO.GetDescription())
+                {
+                    var autoRet = AutomaticLanguageRecognition(InputTxt);
+                    IdentifyLanguage = autoRet.Item1;
+                    translateResp = await TranslateUtil.TranslateDeepLAsync(config.deepl?.url ?? defaultApi, InputTxt, LanguageEnumDict[autoRet.Item2], LanguageEnumDict[InputComboSelected]);
+                }
+                else
+                {
+                    translateResp = await TranslateUtil.TranslateDeepLAsync(config.deepl?.url ?? defaultApi, InputTxt, LanguageEnumDict[OutputComboSelected], LanguageEnumDict[InputComboSelected]);
+                }
 
                 //百度 Api
                 //var translateResp = await TranslateUtil.TranslateBaiduAsync(config.baidu.appid, config.baidu.secretKey, InputTxt, LanguageEnumDict[OutputComboSelected], LanguageEnumDict[InputComboSelected]);
@@ -96,7 +126,10 @@ namespace STranslate.ViewModel
                 OutputTxt = translateResp;
 
                 //如果不是英文则不进行转换
-                if (LanguageEnumDict[OutputComboSelected] != LanguageEnum.EN) return;
+                if (AutomaticLanguageRecognition(InputTxt).Item2 != LanguageEnum.EN.GetDescription() && LanguageEnumDict[OutputComboSelected] != LanguageEnum.EN)
+                {
+                    return;
+                }
 
                 var splitList = OutputTxt.Split(' ').ToList();
                 if (splitList.Count > 1)
@@ -157,7 +190,7 @@ namespace STranslate.ViewModel
         #endregion handle
 
         #region Params
-
+        private string translateResp;
         public ICommand TranslateCmd { get; private set; }
         public ICommand CopyInputCmd { get; private set; }
         public ICommand CopyResultCmd { get; private set; }
@@ -165,6 +198,11 @@ namespace STranslate.ViewModel
         public ICommand CopySmallHumpResultCmd { get; private set; }
         public ICommand CopyLargeHumpResultCmd { get; private set; }
 
+        /// <summary>
+        /// 识别语种
+        /// </summary>
+        private string _IdentifyLanguage;
+        public string IdentifyLanguage { get => _IdentifyLanguage; set => UpdateProperty(ref _IdentifyLanguage, value); }
         /// <summary>
         /// 构造蛇形结果
         /// </summary>