Added the Vietnamese language

hscommon/trans.py

@@ -49,7 +49,7 @@ def get_locale_name(lang):
     else:
         LANG2LOCALENAME = {'fr': 'fr_FR', 'de': 'de_DE', 'it': 'it_IT', 'zh_CN': 'zh_CN',
             'cs': 'cs_CZ', 'nl': 'nl_NL', 'hy': 'hy_AM', 'ru': 'ru_RU', 'uk': 'uk_UA',
-            'pt_BR': 'pt_BR', 'es': 'es_ES'}
+            'pt_BR': 'pt_BR', 'es': 'es_ES', 'vi': 'vi_VN'}
     if lang not in LANG2LOCALENAME:
         return None
     result = LANG2LOCALENAME[lang]

qt/base/preferences_dialog.py

@@ -17,7 +17,7 @@ from qtlib.preferences import LANGNAMES
 
 tr = trget('ui')
 
-SUPPORTED_LANGUAGES = ['en', 'fr', 'de', 'zh_CN', 'cs', 'it', 'hy', 'ru', 'uk', 'pt_BR']
+SUPPORTED_LANGUAGES = ['en', 'fr', 'de', 'zh_CN', 'cs', 'it', 'hy', 'ru', 'uk', 'pt_BR', 'vi']
 
 class PreferencesDialogBase(QDialog):
     def __init__(self, parent, app):

qtlib/preferences.py

@@ -26,6 +26,7 @@ LANGNAMES = {
     'nl': tr('Dutch'),
     'pt_BR': tr("Brazilian"),
     'es': tr("Spanish"),
+    'vi': tr("Vietnamese"),
 }
 
 def normalize_for_serialization(v):