def load(ds: datastorage.DataStorage):
settings_str = ds.get_preferences()
db_settings = json.loads(settings_str) if settings_str is not None else {}
def_settings = {
'font_size': Settings.DEF_FONT_SIZE,
'theme': Settings.DEF_THEME
}
overall_settings = {**def_settings, **db_settings}
return overall_settings
def save(ds: datastorage.DataStorage, args):
settings_str = ds.get_preferences()
db_settings = json.loads(settings_str) if settings_str is not None else {}
#print('db_settings', db_settings)
#print('argzzz', args.get)
font_size = args.get('font_size', None, type=int)
if font_size:
if not 5 <= font_size <= 32:
raise AttributeError('Font size is out of range [5, 32]')
db_settings['font_size'] = font_size
theme = args.get('theme', None, type=str)
if theme:
if theme not in (Settings.THEME_LIGHT, Settings.THEME_DARK, Settings.THEME_SEPIA):
raise AttributeError('Unknown theme: ' + theme)
db_settings['theme'] = theme
settings_str = json.dumps(db_settings)
#print(settings_str)
ds.set_preferences(settings_str)