nanovna-saver/NanoVNASaver/Defaults.py

126 wiersze
4.0 KiB
Python

# NanoVNASaver
#
# A python program to view and export Touchstone data from a NanoVNA
# Copyright (C) 2019, 2020 Rune B. Broberg
# Copyright (C) 2020ff NanoVNA-Saver Authors
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import dataclasses as DC
import logging
import json
from PyQt5.QtCore import QSettings
logger = logging.getLogger(__name__)
# pylint: disable=too-few-public-methods
# pylint: disable=too-many-instance-attributes
@DC.dataclass
class GUI:
window_height: int = 950
window_width: int = 1433
font_size: int = 8
dark_mode: bool = False
# TODO: implement QByteArray
splitter_sizes: bytearray = DC.field(default_factory=bytearray)
markers_hidden: bool = False
@DC.dataclass
class Chart:
point_size: int = 2
show_lines: bool = False
line_thickness: int = 1
marker_count: int = 3
marker_label: bool = False
marker_filled: bool = False
marker_at_tip: bool = False
marker_size: int = 8
returnloss_is_positive: bool = False
@DC.dataclass
class CFG:
gui: object = GUI()
chart: object = Chart()
cfg = CFG()
def restore(settings: 'AppSettings') -> CFG:
result = CFG()
for field in DC.fields(result):
value = settings.restore_dataclass(field.name.upper(),
getattr(result, field.name))
setattr(result, field.name, value)
logger.debug("restored\n(\n%s\n)", result)
return result
def store(settings: 'AppSettings', data: CFG) -> None:
logger.debug("storing\n(\n%s\n)", data)
assert isinstance(data, CFG)
for field in DC.fields(data):
data_class = getattr(data, field.name)
assert DC.is_dataclass(data_class)
settings.store_dataclass(field.name.upper(), data_class)
class AppSettings(QSettings):
def store_dataclass(self, name: str, data: object) -> None:
assert DC.is_dataclass(data)
self.beginGroup(name)
for field in DC.fields(data):
value = getattr(data, field.name)
try:
assert isinstance(value, field.type)
except AssertionError:
logger.error("%s: %s is not a %s", name, field.name,
field.type)
continue
if field.type not in (int, float, str, bool):
try:
value = json.dumps(value)
except TypeError:
value = field.type(value).hex()
self.setValue(field.name, value)
self.endGroup()
def restore_dataclass(self, name: str, data: object) -> object:
assert DC.is_dataclass(data)
result = DC.replace(data)
self.beginGroup(name)
for field in DC.fields(data):
value = None
if field.type in (int, float, str, bool):
value = self.value(field.name,
type=field.type,
defaultValue=field.default)
else:
default = getattr(data, field.name)
try:
value = json.loads(
self.value(field.name, type=str,
defaultValue=json.dumps(default)))
except TypeError:
value = self.value(field.name)
value = bytes.fromhex(value) if value is str else default
setattr(result, field.name, field.type(value))
self.endGroup()
return result