Now tries to use current encoding to determine current language - thx fox :)

git-svn-id: https://subtitleedit.googlecode.com/svn/trunk@1665 99eadd0c-20b8-1223-b5c4-2a2b2df33de2

src/Forms/FixCommonErrors.cs

@@ -246,7 +246,9 @@ namespace Nikse.SubtitleEdit.Forms
 
         public void Initialize(Subtitle subtitle, SubtitleFormat format, Encoding encoding)
         {
-            _autoDetectGoogleLanguage = Utilities.AutoDetectGoogleLanguage(subtitle);
+            _autoDetectGoogleLanguage = Utilities.AutoDetectGoogleLanguage(encoding); // Guess language via encoding
+            if (string.IsNullOrEmpty(_autoDetectGoogleLanguage))
+                _autoDetectGoogleLanguage = Utilities.AutoDetectGoogleLanguage(subtitle); // Guess language based on subtitle contents
             if (_autoDetectGoogleLanguage.ToLower() == "zh")
                 _autoDetectGoogleLanguage = "zh-CHS"; // Note that "zh-CHS" (Simplified Chinese) and "zh-CHT" (Traditional Chinese) are neutral cultures
             CultureInfo ci = CultureInfo.GetCultureInfo(_autoDetectGoogleLanguage);

src/Forms/GoogleOrMicrosoftTranslate.cs

@@ -107,7 +107,7 @@ namespace Nikse.SubtitleEdit.Forms
                 GoogleTranslate gt = new GoogleTranslate();
                 Subtitle subtitle = new Subtitle();
                 subtitle.Paragraphs.Add(new Paragraph(0,0,textBoxSourceText.Text));
-                gt.Initialize(subtitle, string.Empty, false);
+                gt.Initialize(subtitle, string.Empty, false, System.Text.Encoding.UTF8);
                 from = FixMsLocale(from);
                 to = FixMsLocale(to);
                 gt.DoMicrosoftTranslate(from, to);

src/Forms/GoogleTranslate.cs

@@ -92,7 +92,7 @@ namespace Nikse.SubtitleEdit.Forms
             }
         }
 
-        internal void Initialize(Subtitle subtitle, string title, bool googleTranslate)
+        internal void Initialize(Subtitle subtitle, string title, bool googleTranslate, Encoding encoding)
         {
             if (title != null)
                 Text = title;
@@ -108,7 +108,10 @@ namespace Nikse.SubtitleEdit.Forms
             _subtitle = subtitle;
             _translatedSubtitle = new Subtitle(subtitle);
 
-            string defaultFromLanguage = Utilities.AutoDetectGoogleLanguage(subtitle);
+            string defaultFromLanguage = Utilities.AutoDetectGoogleLanguage(encoding); // Guess language via encoding
+            if (string.IsNullOrEmpty(defaultFromLanguage))
+                defaultFromLanguage = Utilities.AutoDetectGoogleLanguage(subtitle); // Guess language based on subtitle contents
+
             FillComboWithLanguages(comboBoxFrom);
             int i = 0;
             foreach (ComboBoxItem item in comboBoxFrom.Items)

src/Forms/Main.cs

@@ -4557,11 +4557,11 @@ namespace Nikse.SubtitleEdit.Forms
                     foreach (int index in SubtitleListview1.SelectedIndices)
                         selectedLines.Paragraphs.Add(_subtitle.Paragraphs[index]);
                     title += " - " + _language.SelectedLines;
-                    googleTranslate.Initialize(selectedLines, title, useGoogle);
+                    googleTranslate.Initialize(selectedLines, title, useGoogle, GetCurrentEncoding());
                 }
                 else
                 {
-                    googleTranslate.Initialize(_subtitle, title, useGoogle);
+                    googleTranslate.Initialize(_subtitle, title, useGoogle, GetCurrentEncoding());
                 }
                 if (googleTranslate.ShowDialog(this) == DialogResult.OK)
                 {

src/Logic/Utilities.cs

@@ -1066,6 +1066,65 @@ namespace Nikse.SubtitleEdit.Logic
             return count;
         }
 
+        public static string AutoDetectGoogleLanguage(Encoding encoding)
+        {
+            if (encoding.CodePage == 949)
+                return "ko"; // Korean
+            if (encoding.CodePage == 950)
+                return "zh"; // Chinese
+            if (encoding.CodePage == 1253)
+                return "el"; // Greek
+            if (encoding.CodePage == 1254)
+                return "tr"; // Turkish
+            if (encoding.CodePage == 1255)
+                return "he"; // Hebrew
+            if (encoding.CodePage == 1256)
+                return "ar"; // Arabic
+            if (encoding.CodePage == 1258)
+                return "vi"; // Vietnamese
+            if (encoding.CodePage == 1361)
+                return "ko"; // Korean
+            if (encoding.CodePage == 10001)
+                return "ja"; // Japanese
+            if (encoding.CodePage == 20000)
+                return "zh"; // Chinese
+            if (encoding.CodePage == 20002)
+                return "zh"; // Chinese
+            if (encoding.CodePage == 20932)
+                return "ja"; // Japanese
+            if (encoding.CodePage == 20936)
+                return "zh"; // Chinese
+            if (encoding.CodePage == 20949)
+                return "ko"; // Korean
+            if (encoding.CodePage == 28596)
+                return "ar"; // Arabic
+            if (encoding.CodePage == 28597)
+                return "el"; // Greek
+            if (encoding.CodePage == 28598)
+                return "he"; // Hebrew
+            if (encoding.CodePage == 28599)
+                return "tr"; // Turkish
+            if (encoding.CodePage == 50220)
+                return "ja"; // Japanese
+            if (encoding.CodePage == 50221)
+                return "ja"; // Japanese
+            if (encoding.CodePage == 50222)
+                return "ja"; // Japanese
+            if (encoding.CodePage == 50225)
+                return "ko"; // Korean
+            if (encoding.CodePage == 51932)
+                return "ja"; // Japanese
+            if (encoding.CodePage == 51936)
+                return "zh"; // Chinese
+            if (encoding.CodePage == 51949)
+                return "ko"; // Korean
+            if (encoding.CodePage == 52936)
+                return "zh"; // Chinese
+            if (encoding.CodePage == 54936)
+                return "zh"; // Chinese
+            return null;
+        }
+
         public static string AutoDetectGoogleLanguage(string text, int bestCount)
         {
             int count = GetCount(text, "we", "are", "and", "you", "your", "what");