r"""
General settings
"""
# standard imports
import json
import os
import sys
this_module_path = sys.modules[__name__].__file__
[docs]
class Settings(object):
r"""Singleton object containing the GUI settings as a dictionary"""
_instance = None
def __new__(cls, *args, **kwargs):
if not isinstance(cls._instance, cls):
cls._instance = object.__new__(cls, *args, **kwargs)
cls._instance._settings = {} # empty configuration
return cls._instance
def __init__(self):
r"""Load default configuration"""
if not self._settings: # will load only once, since this is a singleton
self.update(os.path.join(os.path.dirname(this_module_path), "settings.json"))
def __getitem__(self, item):
return self._settings.get(item, None)
def __str__(self):
return str(self._settings)
[docs]
def update(self, file_json):
# type: (str) -> dict
r"""
@brief Update the configuration with a JSON file containing settings of interest
"""
with open(file_json) as file_handle:
self._settings.update(json.load(file_handle))