Added DvdSubtitleLanguage class

libse/DvdSubtitleLanguage.cs

@@ -0,0 +1,190 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Globalization;
+using System.Linq;
+
+namespace Nikse.SubtitleEdit.Core
+{
+    public class DvdSubtitleLanguage
+    {
+        private class LanguagesByCode : KeyedCollection<string, DvdSubtitleLanguage>
+        {
+            public LanguagesByCode(IEnumerable<DvdSubtitleLanguage> languages)
+            {
+                foreach (var language in languages)
+                {
+                    Add(language);
+                }
+            }
+
+            public DvdSubtitleLanguage GetValueOrNull(string code)
+            {
+                DvdSubtitleLanguage language;
+                Dictionary.TryGetValue(code, out language);
+                return language;
+            }
+
+            protected override string GetKeyForItem(DvdSubtitleLanguage dsl)
+            {
+                return dsl.Code;
+            }
+        }
+
+        private static readonly Dictionary<string, string> _isoToDvd = new Dictionary<string, string>
+        {
+            { "yi", "ji" }, { "jv", "jw" }, { "id", "in" }, { "he", "iw" } // { "bs", "sh" }, { "nb", "no" }, { "nn", "no" } ???
+        };
+        private static readonly Dictionary<string, string> _dvdToIso = new Dictionary<string, string>
+        {
+            { "ji", "yi" }, { "jw", "jv" }, { "in", "id" }, { "iw", "he" }
+        };
+        private static readonly string[] _compliantDescriptions = new[]
+        {   // DVD code + native name
+            "aa:Qafár af", "ab:аҧсуа бызшәа", "af:Afrikaans", "am:አማርኛ", "ar:العربية", "as:অসমীয়া", "ay:Aymar aru", "az:azərbaycan dili", "ba:башҡорт теле", "be:беларуская",
+            "bg:български", "bh:भोजपुरी", "bi:Bislama", "bn:বাংলা", "bo:བོད་སྐད་", "br:brezhoneg", "ca:català", "co:corsu", "cs:čeština", "cy:Cymraeg", "da:dansk", "de:Deutsch", "dz:རྫོང་ཁ",
+            "el:Ελληνικά", "en:English", "eo:esperanto", "es:español", "et:eesti", "eu:euskara", "fa:فارسی", "fi:suomi", "fj:Vosa Vakaviti", "fo:føroyskt", "fr:français",
+            "fy:West-Frysk", "ga:Gaeilge", "gd:Gàidhlig", "gl:galego", "gn:Avañe'ẽ", "gu:ગુજરાતી", "ha:Hausa", "hi:हिन्दी", "hr:hrvatski", "hu:magyar", "hy:հայերեն", "ia:Interlingua",
+            "ie:Interlingue", "ik:iñupiaq", "in:Indonesia", "is:íslenska", "it:italiano", "iu:ᐃᓄᒃᑎᑐᑦ", "iw:עברית", "ja:日本語", "ji:ייִדיש", "jw:Basa Jawa", "ka:ქართული", "kk:қазақ тілі",
+            "kl:kalaallisut", "km:ខ្មែរ", "kn:ಕನ್ನಡ", "ko:한국어", "ks:کٲشُر", "ku:Kurdî", "ky:кыргызча", "la:lingua latina", "lb:Lëtzebuergesch", "ln:lingála", "lo:ລາວ", "lt:lietuvių",
+            "lv:latviešu", "mg:Malagasy", "mi:Te reo Māori", "mk:македонски", "ml:മലയാളം", "mn:монгол", "mo:moldovenească", "mr:मराठी", "ms:Bahasa Melayu", "mt:Malti", "my:ဗမာ (myanma)",
+            "na:Dorerin Naoero", "ne:नेपाली", "nl:Nederlands", "no:norsk", "oc:occitan", "om:Oromoo", "or:ଓଡ଼ିଆ", "pa:ਪੰਜਾਬੀ", "pl:polski", "ps:پښتو", "pt:português", "qu:Runasimi", "rm:rumantsch",
+            "rn:Ikirundi", "ro:română", "ru:русский", "rw:Kinyarwanda", "sa:ंस्कृतम्", "sd:सिन्धी‎", "sg:Sängö", "sh:Srpskohrvatski", "si:සිංහල", "sk:slovenčina", "sl:slovenščina", "sm:Gagana fa'a Samoa",
+            "sn:chiShona", "so:Soomaali", "sq:shqip", "sr:српски", "ss:SiSwati", "st:Sesotho", "su:Basa Sunda", "sv:svenska", "sw:Kiswahili", "ta:தமிழ்", "te:తెలుగు", "tg:тоҷикӣ", "th:ไทย", "ti:ትግርኛ",
+            "tk:türkmençe", "tl:Wikang Tagalog", "tn:Setswana", "to:lea fakatonga", "tr:Türkçe", "ts:Xitsonga", "tt:татар теле", "tw:Twi", "ug:ئۇيغۇرچە", "uk:українська", "ur:اردو", "uz:o‘zbek",
+            "vi:Tiếng Việt", "vo:Volapük", "wo:Wollof", "xh:IsiXhosa", "yo:Èdè Yorùbá", "za:Vahcuengh (話僮)", "zh:中文", "zu:isiZulu"
+        };
+        private static LanguagesByCode _compliantLanguagesByCode;
+
+        public string Code { get; private set; }
+        public string LocalName { get; private set; }
+        public string NativeName { get; private set; }
+
+        private DvdSubtitleLanguage(string code, string localName, string nativeName)
+        {
+            Code = code;
+            LocalName = localName;
+            NativeName = nativeName;
+        }
+
+        private DvdSubtitleLanguage(string description)
+        {
+            NativeName = description.Substring(3);
+            var code = description.Remove(2);
+            Code = code;
+            var names = Configuration.Settings.Language.LanguageNames;
+            LocalName = (string)names.GetType().GetProperty(DvdToIso(code) + "Name").GetValue(names, null);
+        }
+
+        public override string ToString()
+        {
+            return LocalName;
+        }
+
+        public static DvdSubtitleLanguage English
+        {
+            get
+            {
+                return CompliantLanguagesByCode["en"];
+            }
+        }
+
+        public static IEnumerable<DvdSubtitleLanguage> CompliantLanguages
+        {
+            get
+            {
+                return CompliantLanguagesByCode;
+            }
+        }
+
+        private static LanguagesByCode CompliantLanguagesByCode
+        {
+            get
+            {
+                if (_compliantLanguagesByCode == null)
+                {
+                    var cl = _compliantDescriptions.Select(s => new DvdSubtitleLanguage(s)).OrderBy(dsl => dsl.LocalName, StringComparer.CurrentCultureIgnoreCase).ThenBy(dsl => dsl.LocalName, StringComparer.Ordinal);
+                    var ns = new DvdSubtitleLanguage[] { new DvdSubtitleLanguage("  ", Configuration.Settings.Language.LanguageNames.NotSpecified, "Not Specified") };
+                    _compliantLanguagesByCode = new LanguagesByCode(ns.Concat(cl));
+                }
+                return _compliantLanguagesByCode;
+            }
+        }
+
+        public static void Initialize()
+        {
+            _compliantLanguagesByCode = null;
+        }
+
+        public static string GetLocalLanguageName(string code)
+        {
+            var language = GetLanguageOrNull(code);
+            return language == null ? GetNonCompliantLocalLanguageName(code) : language.LocalName;
+        }
+
+        public static string GetNativeLanguageName(string code)
+        {
+            var language = GetLanguageOrNull(code);
+            return language == null ? GetNonCompliantNativeLanguageName(code) : language.NativeName;
+        }
+
+        public static DvdSubtitleLanguage GetLanguageOrNull(string code)
+        {
+            code = IsoToDvd(code.ToLowerInvariant());
+            return CompliantLanguagesByCode.GetValueOrNull(code);
+        }
+
+        private static string GetNonCompliantLocalLanguageName(string code)
+        {
+            try
+            {
+                var codeCulture = CultureInfo.GetCultureInfo(code);
+                try
+                {
+                    var seCulture = CultureInfo.GetCultureInfo(Configuration.Settings.Language.General.CultureName);
+                    if (seCulture.Name == CultureInfo.CurrentUICulture.Name)
+                    {
+                        return codeCulture.DisplayName; // SE culture == UI culture
+                    }
+                }
+                catch
+                {
+                }
+                return codeCulture.EnglishName; // SE culture != UI culture
+            }
+            catch
+            {
+                return string.Format(Configuration.Settings.Language.LanguageNames.UnknownCodeX, code);
+            }
+        }
+
+        private static string GetNonCompliantNativeLanguageName(string code)
+        {
+            try
+            {
+                return CultureInfo.GetCultureInfo(code).NativeName;
+            }
+            catch
+            {
+                return "Unknown (" + code + ")";
+            }
+        }
+
+        private static string DvdToIso(string dvdCode)
+        {
+            string isoCode;
+            if (!_dvdToIso.TryGetValue(dvdCode, out isoCode))
+                isoCode = dvdCode;
+            return isoCode;
+        }
+
+        private static string IsoToDvd(string isoCode)
+        {
+            string dvdCode;
+            if (!_isoToDvd.TryGetValue(isoCode, out dvdCode))
+                dvdCode = isoCode;
+            return dvdCode;
+        }
+
+    }
+}

libse/LibSE.csproj

@@ -113,6 +113,7 @@
     <Compile Include="DetectEncoding\Multilang\__MIDL_IWinTypes_0009.cs" />
     <Compile Include="Dictionaries\NamesList.cs" />
     <Compile Include="Dictionaries\OcrFixReplaceList.cs" />
+    <Compile Include="DvdSubtitleLanguage.cs" />
     <Compile Include="Enums\FindType.cs" />
     <Compile Include="Enums\SelectionChoice.cs" />
     <Compile Include="Enums\SpellCheckAction.cs" />

src/Forms/Main.cs

@@ -1301,7 +1301,7 @@ namespace Nikse.SubtitleEdit.Forms
             buttonSplitLine.Text = _languageGeneral.SplitLine;
             ShowSourceLineNumber();
 
-            // Video controls
+            // video controls
             tabPageTranslate.Text = _language.VideoControls.Translate + "  ";
             tabPageCreate.Text = _language.VideoControls.Create + "  ";
             tabPageAdjust.Text = _language.VideoControls.Adjust + "  ";
@@ -1379,6 +1379,9 @@ namespace Nikse.SubtitleEdit.Forms
                 audioVisualizer.WaveformNotLoadedText = languageWaveform.ClickToAddWaveformAndSpectrogram;
             else
                 audioVisualizer.WaveformNotLoadedText = languageWaveform.ClickToAddWaveform;
+
+            // clear cached language names
+            DvdSubtitleLanguage.Initialize();
         }
 
         private void SetFormatToSubRip()