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| 1 | # -*- coding: utf-8 -*- | |
| 2 | # vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4 | |
| 3 | ||
| 4 | import sip | |
| 5 | from datetime import datetime, timedelta | |
| 6 | ||
| 7 | sip.setapi(u'QDate', 2) | |
| 8 | sip.setapi(u'QDateTime', 2) | |
| 9 | sip.setapi(u'QString', 2) | |
| 10 | sip.setapi(u'QTextStream', 2) | |
| 11 | sip.setapi(u'QTime', 2) | |
| 12 | sip.setapi(u'QUrl', 2) | |
| 13 | sip.setapi(u'QVariant', 2) | |
| 14 | ||
| 15 | ||
| 16 | from PyQt4 import QtCore | |
| 17 | ||
| 18 | ||
| 19 | class Settings(QtCore.QSettings): | |
| 20 | __default_settings__ = {
| |
| 21 | # This defaults to yesterday in order to force the update check to run when you've never run it before. | |
| 22 | u'core/last version test': datetime.now().date() - timedelta(days=1) | |
| 23 | } | |
| 24 | ||
| 25 | def value(self, key): | |
| 26 | # if group() is not empty the group has not been specified together with the key. | |
| 27 | if self.group(): | |
| 28 | default_value = Settings.__default_settings__[self.group() + u'/' + key] | |
| 29 | else: | |
| 30 | default_value = Settings.__default_settings__[key] | |
| 31 | setting = super(Settings, self).value(key, default_value) | |
| 32 | return self._convert_value(setting, default_value) | |
| 33 | ||
| 34 | def _convert_value(self, setting, default_value): | |
| 35 | # On OS X (and probably on other platforms too) empty value from QSettings is represented as type | |
| 36 | # PyQt4.QtCore.QPyNullVariant. This type has to be converted to proper 'None' Python type. | |
| 37 | if isinstance(setting, QtCore.QPyNullVariant) and setting.isNull(): | |
| 38 | setting = None | |
| 39 | # Handle 'None' type (empty value) properly. | |
| 40 | if setting is None: | |
| 41 | # An empty string saved to the settings results in a None type being returned. | |
| 42 | # Convert it to empty unicode string. | |
| 43 | if isinstance(default_value, unicode): | |
| 44 | return u'' | |
| 45 | # An empty list saved to the settings results in a None type being returned. | |
| 46 | else: | |
| 47 | return [] | |
| 48 | # Convert the setting to the correct type. | |
| 49 | if isinstance(default_value, bool): | |
| 50 | if isinstance(setting, bool): | |
| 51 | return setting | |
| 52 | # Sometimes setting is string instead of a boolean. | |
| 53 | return setting == u'true' | |
| 54 | if isinstance(default_value, int): | |
| 55 | return int(setting) | |
| 56 | return setting | |
| 57 | ||
| 58 | if __name__ == u'__main__': | |
| 59 | settings = Settings() | |
| 60 | print settings.fileName() | |
| 61 | settings.beginGroup(u'core') | |
| 62 | last_test = settings.value(u'last version test') | |
| 63 | this_test = datetime.now().date() | |
| 64 | settings.setValue(u'last version test', this_test) | |
| 65 | settings.endGroup() |
