| 1 | # Internationalization support
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| 2 | # -*- coding: utf-8 -*-
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| 3 |
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| 4 | #------------------------------------------------------------------------------
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| 5 |
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| 6 | import gettext
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| 7 | import os
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| 8 | import traceback
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| 9 |
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| 10 | #------------------------------------------------------------------------------
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| 11 |
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| 12 | _translation = None
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| 13 | _language = None
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| 14 |
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| 15 | #------------------------------------------------------------------------------
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| 16 |
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| 17 | def setLanguage(programDirectory, language):
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| 18 | """Setup the internationalization support for the given language."""
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| 19 | print "i18n.setLanguage", language
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| 20 | translation = _getTranslation(programDirectory, language)
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| 21 | fallback = _getFallbackFor(programDirectory, language)
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| 22 | if translation is None:
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| 23 | translation = fallback
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| 24 | elif fallback is not None:
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| 25 | translation.add_fallback(fallback)
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| 26 | assert translation is not None
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| 27 |
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| 28 | global _translation, _language
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| 29 | _translation = translation
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| 30 | _language = language
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| 31 |
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| 32 | #------------------------------------------------------------------------------
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| 33 |
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| 34 | def getLanguage():
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| 35 | """Get the two-letter language code."""
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| 36 | underscoreIndex = _language.find("_")
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| 37 | return _language[:underscoreIndex] if underscoreIndex>0 else _language
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| 38 |
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| 39 | #------------------------------------------------------------------------------
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| 40 |
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| 41 | def xstr(key):
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| 42 | """Get the string for the given key in the current language.
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| 43 |
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| 44 | If not found, the fallback language is searched. If that is not found
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| 45 | either, the key itself is returned within curly braces."""
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| 46 | return _translation.ugettext(key)
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| 47 |
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| 48 | #------------------------------------------------------------------------------
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| 49 |
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| 50 | def _getFallbackFor(programDirectory, language):
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| 51 | """Get the fallback for the given language.
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| 52 |
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| 53 | If the language is English, None is returned, otherwise the English
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| 54 | language translation."""
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| 55 | if language in ["en", "en_GB"]:
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| 56 | return None
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| 57 | else:
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| 58 | return _getTranslation(programDirectory, "en")
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| 59 |
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| 60 | #------------------------------------------------------------------------------
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| 61 |
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| 62 | def _getTranslation(programDirectory, language):
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| 63 | """Get the translation for the given language."""
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| 64 | try:
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| 65 | return gettext.translation("mlx",
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| 66 | localedir = os.path.join(programDirectory,
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| 67 | "locale"),
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| 68 | languages = [language])
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| 69 | except:
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| 70 | traceback.print_exc()
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| 71 | return None
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| 72 |
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| 73 | #------------------------------------------------------------------------------
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