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# localeselector.cpp Example File
widgets/validators/localeselector.cpp

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     #include "localeselector.h"
     #include <QLocale>

     struct SupportedLocale
     {
         int lang, country;
     };

     const SupportedLocale SUPPORTED_LOCALES[] = {
         {      1,     0 }, // C/AnyCountry
         {      3,    69 }, // Afan/Ethiopia
         {      3,   111 }, // Afan/Kenya
         {      4,    59 }, // Afar/Djibouti
         {      4,    67 }, // Afar/Eritrea
         {      4,    69 }, // Afar/Ethiopia
         {      5,   195 }, // Afrikaans/SouthAfrica
         {      5,   148 }, // Afrikaans/Namibia
         {      6,     2 }, // Albanian/Albania
         {      7,    69 }, // Amharic/Ethiopia
         {      8,   186 }, // Arabic/SaudiArabia
         {      8,     3 }, // Arabic/Algeria
         {      8,    17 }, // Arabic/Bahrain
         {      8,    64 }, // Arabic/Egypt
         {      8,   103 }, // Arabic/Iraq
         {      8,   109 }, // Arabic/Jordan
         {      8,   115 }, // Arabic/Kuwait
         {      8,   119 }, // Arabic/Lebanon
         {      8,   122 }, // Arabic/LibyanArabJamahiriya
         {      8,   145 }, // Arabic/Morocco
         {      8,   162 }, // Arabic/Oman
         {      8,   175 }, // Arabic/Qatar
         {      8,   201 }, // Arabic/Sudan
         {      8,   207 }, // Arabic/SyrianArabRepublic
         {      8,   216 }, // Arabic/Tunisia
         {      8,   223 }, // Arabic/UnitedArabEmirates
         {      8,   237 }, // Arabic/Yemen
         {      9,    11 }, // Armenian/Armenia
         {     10,   100 }, // Assamese/India
         {     12,    15 }, // Azerbaijani/Azerbaijan
         {     14,   197 }, // Basque/Spain
         {     15,    18 }, // Bengali/Bangladesh
         {     15,   100 }, // Bengali/India
         {     16,    25 }, // Bhutani/Bhutan
         {     20,    33 }, // Bulgarian/Bulgaria
         {     22,    20 }, // Byelorussian/Belarus
         {     23,    36 }, // Cambodian/Cambodia
         {     24,   197 }, // Catalan/Spain
         {     25,    44 }, // Chinese/China
         {     25,    97 }, // Chinese/HongKong
         {     25,   126 }, // Chinese/Macau
         {     25,   190 }, // Chinese/Singapore
         {     25,   208 }, // Chinese/Taiwan
         {     27,    54 }, // Croatian/Croatia
         {     28,    57 }, // Czech/CzechRepublic
         {     29,    58 }, // Danish/Denmark
         {     30,   151 }, // Dutch/Netherlands
         {     30,    21 }, // Dutch/Belgium
         {     31,   225 }, // English/UnitedStates
         {     31,     4 }, // English/AmericanSamoa
         {     31,    13 }, // English/Australia
         {     31,    21 }, // English/Belgium
         {     31,    22 }, // English/Belize
         {     31,    28 }, // English/Botswana
         {     31,    38 }, // English/Canada
         {     31,    89 }, // English/Guam
         {     31,    97 }, // English/HongKong
         {     31,   100 }, // English/India
         {     31,   104 }, // English/Ireland
         {     31,   107 }, // English/Jamaica
         {     31,   133 }, // English/Malta
         {     31,   134 }, // English/MarshallIslands
         {     31,   148 }, // English/Namibia
         {     31,   154 }, // English/NewZealand
         {     31,   160 }, // English/NorthernMarianaIslands
         {     31,   163 }, // English/Pakistan
         {     31,   170 }, // English/Philippines
         {     31,   190 }, // English/Singapore
         {     31,   195 }, // English/SouthAfrica
         {     31,   215 }, // English/TrinidadAndTobago
         {     31,   224 }, // English/UnitedKingdom
         {     31,   226 }, // English/UnitedStatesMinorOutlyingIslands
         {     31,   234 }, // English/USVirginIslands
         {     31,   240 }, // English/Zimbabwe
         {     33,    68 }, // Estonian/Estonia
         {     34,    71 }, // Faroese/FaroeIslands
         {     36,    73 }, // Finnish/Finland
         {     37,    74 }, // French/France
         {     37,    21 }, // French/Belgium
         {     37,    38 }, // French/Canada
         {     37,   125 }, // French/Luxembourg
         {     37,   142 }, // French/Monaco
         {     37,   206 }, // French/Switzerland
         {     40,   197 }, // Galician/Spain
         {     41,    81 }, // Georgian/Georgia
         {     42,    82 }, // German/Germany
         {     42,    14 }, // German/Austria
         {     42,    21 }, // German/Belgium
         {     42,   123 }, // German/Liechtenstein
         {     42,   125 }, // German/Luxembourg
         {     42,   206 }, // German/Switzerland
         {     43,    85 }, // Greek/Greece
         {     43,    56 }, // Greek/Cyprus
         {     44,    86 }, // Greenlandic/Greenland
         {     46,   100 }, // Gujarati/India
         {     47,    83 }, // Hausa/Ghana
         {     47,   156 }, // Hausa/Niger
         {     47,   157 }, // Hausa/Nigeria
         {     48,   105 }, // Hebrew/Israel
         {     49,   100 }, // Hindi/India
         {     50,    98 }, // Hungarian/Hungary
         {     51,    99 }, // Icelandic/Iceland
         {     52,   101 }, // Indonesian/Indonesia
         {     57,   104 }, // Irish/Ireland
         {     58,   106 }, // Italian/Italy
         {     58,   206 }, // Italian/Switzerland
         {     59,   108 }, // Japanese/Japan
         {     61,   100 }, // Kannada/India
         {     63,   110 }, // Kazakh/Kazakhstan
         {     64,   179 }, // Kinyarwanda/Rwanda
         {     65,   116 }, // Kirghiz/Kyrgyzstan
         {     66,   114 }, // Korean/RepublicOfKorea
         {     67,   102 }, // Kurdish/Iran
         {     67,   103 }, // Kurdish/Iraq
         {     67,   207 }, // Kurdish/SyrianArabRepublic
         {     67,   217 }, // Kurdish/Turkey
         {     69,   117 }, // Laothian/Lao
         {     71,   118 }, // Latvian/Latvia
         {     72,    49 }, // Lingala/DemocraticRepublicOfCongo
         {     72,    50 }, // Lingala/PeoplesRepublicOfCongo
         {     73,   124 }, // Lithuanian/Lithuania
         {     74,   127 }, // Macedonian/Macedonia
         {     76,   130 }, // Malay/Malaysia
         {     76,    32 }, // Malay/BruneiDarussalam
         {     77,   100 }, // Malayalam/India
         {     78,   133 }, // Maltese/Malta
         {     80,   100 }, // Marathi/India
         {     82,   143 }, // Mongolian/Mongolia
         {     84,   150 }, // Nepali/Nepal
         {     85,   161 }, // Norwegian/Norway
         {     87,   100 }, // Oriya/India
         {     88,     1 }, // Pashto/Afghanistan
         {     89,   102 }, // Persian/Iran
         {     89,     1 }, // Persian/Afghanistan
         {     90,   172 }, // Polish/Poland
         {     91,   173 }, // Portuguese/Portugal
         {     91,    30 }, // Portuguese/Brazil
         {     92,   100 }, // Punjabi/India
         {     92,   163 }, // Punjabi/Pakistan
         {     95,   177 }, // Romanian/Romania
         {     96,   178 }, // Russian/RussianFederation
         {     96,   222 }, // Russian/Ukraine
         {     99,   100 }, // Sanskrit/India
         {    100,   241 }, // Serbian/SerbiaAndMontenegro
         {    100,    27 }, // Serbian/BosniaAndHerzegowina
         {    100,   238 }, // Serbian/Yugoslavia
         {    101,   241 }, // SerboCroatian/SerbiaAndMontenegro
         {    101,    27 }, // SerboCroatian/BosniaAndHerzegowina
         {    101,   238 }, // SerboCroatian/Yugoslavia
         {    102,   195 }, // Sesotho/SouthAfrica
         {    103,   195 }, // Setswana/SouthAfrica
         {    107,   195 }, // Siswati/SouthAfrica
         {    108,   191 }, // Slovak/Slovakia
         {    109,   192 }, // Slovenian/Slovenia
         {    110,   194 }, // Somali/Somalia
         {    110,    59 }, // Somali/Djibouti
         {    110,    69 }, // Somali/Ethiopia
         {    110,   111 }, // Somali/Kenya
         {    111,   197 }, // Spanish/Spain
         {    111,    10 }, // Spanish/Argentina
         {    111,    26 }, // Spanish/Bolivia
         {    111,    43 }, // Spanish/Chile
         {    111,    47 }, // Spanish/Colombia
         {    111,    52 }, // Spanish/CostaRica
         {    111,    61 }, // Spanish/DominicanRepublic
         {    111,    63 }, // Spanish/Ecuador
         {    111,    65 }, // Spanish/ElSalvador
         {    111,    90 }, // Spanish/Guatemala
         {    111,    96 }, // Spanish/Honduras
         {    111,   139 }, // Spanish/Mexico
         {    111,   155 }, // Spanish/Nicaragua
         {    111,   166 }, // Spanish/Panama
         {    111,   168 }, // Spanish/Paraguay
         {    111,   169 }, // Spanish/Peru
         {    111,   174 }, // Spanish/PuertoRico
         {    111,   225 }, // Spanish/UnitedStates
         {    111,   227 }, // Spanish/Uruguay
         {    111,   231 }, // Spanish/Venezuela
         {    113,   111 }, // Swahili/Kenya
         {    113,   210 }, // Swahili/Tanzania
         {    114,   205 }, // Swedish/Sweden
         {    114,    73 }, // Swedish/Finland
         {    116,   209 }, // Tajik/Tajikistan
         {    117,   100 }, // Tamil/India
         {    118,   178 }, // Tatar/RussianFederation
         {    119,   100 }, // Telugu/India
         {    120,   211 }, // Thai/Thailand
         {    122,    67 }, // Tigrinya/Eritrea
         {    122,    69 }, // Tigrinya/Ethiopia
         {    124,   195 }, // Tsonga/SouthAfrica
         {    125,   217 }, // Turkish/Turkey
         {    129,   222 }, // Ukrainian/Ukraine
         {    130,   100 }, // Urdu/India
         {    130,   163 }, // Urdu/Pakistan
         {    131,   228 }, // Uzbek/Uzbekistan
         {    131,     1 }, // Uzbek/Afghanistan
         {    132,   232 }, // Vietnamese/VietNam
         {    134,   224 }, // Welsh/UnitedKingdom
         {    136,   195 }, // Xhosa/SouthAfrica
         {    138,   157 }, // Yoruba/Nigeria
         {    140,   195 }, // Zulu/SouthAfrica
         {    141,   161 }, // Nynorsk/Norway
         {    142,    27 }, // Bosnian/BosniaAndHerzegowina
         {    143,   131 }, // Divehi/Maldives
         {    144,   224 }, // Manx/UnitedKingdom
         {    145,   224 }, // Cornish/UnitedKingdom
         {    146,    83 }, // Akan/Ghana
         {    147,   100 }, // Konkani/India
         {    148,    83 }, // Ga/Ghana
         {    149,   157 }, // Igbo/Nigeria
         {    150,   111 }, // Kamba/Kenya
         {    151,   207 }, // Syriac/SyrianArabRepublic
         {    152,    67 }, // Blin/Eritrea
         {    153,    67 }, // Geez/Eritrea
         {    153,    69 }, // Geez/Ethiopia
         {    154,   157 }, // Koro/Nigeria
         {    155,    69 }, // Sidamo/Ethiopia
         {    156,   157 }, // Atsam/Nigeria
         {    157,    67 }, // Tigre/Eritrea
         {    158,   157 }, // Jju/Nigeria
         {    159,   106 }, // Friulian/Italy
         {    160,   195 }, // Venda/SouthAfrica
         {    161,    83 }, // Ewe/Ghana
         {    161,   212 }, // Ewe/Togo
         {    163,   225 }, // Hawaiian/UnitedStates
         {    164,   157 }, // Tyap/Nigeria
         {    165,   129 } // Chewa/Malawi
     };

     const int SUPPORTED_LOCALES_COUNT = sizeof(SUPPORTED_LOCALES)/sizeof(SupportedLocale);

     typedef QPair<int, int> IntPair;
     Q_DECLARE_METATYPE(SupportedLocale)

     LocaleSelector::LocaleSelector(QWidget *parent)
         : QComboBox(parent)
     {
         int curIndex = -1;
         QLocale curLocale;

         for (int i = 0; i < SUPPORTED_LOCALES_COUNT; ++i) {
             const SupportedLocale &l = SUPPORTED_LOCALES[i];
             if (l.lang == curLocale.language() && l.country == curLocale.country())
                 curIndex = i;
             QString text = QLocale::languageToString(QLocale::Language(l.lang))
                             + QLatin1Char('/')
                             + QLocale::countryToString(QLocale::Country(l.country));
             addItem(text, qVariantFromValue(l));
         }

         setCurrentIndex(curIndex);

         connect(this, SIGNAL(activated(int)), this, SLOT(emitLocaleSelected(int)));
     }

     void LocaleSelector::emitLocaleSelected(int index)
     {
         QVariant v = itemData(index);
         if (!v.isValid())
             return;
         SupportedLocale l = qVariantValue<SupportedLocale>(v);
         emit localeSelected(QLocale(QLocale::Language(l.lang), QLocale::Country(l.country)));
     }