Files
Artemis/utilities.py
2018-11-11 19:06:24 +01:00

97 lines
3.7 KiB
Python

from collections import namedtuple
import hashlib
from pandas import read_csv
class _ReadOnlyProperty(object):
def __init__(self, value):
self.value = value
def __get__(self, obj, objtype):
return self.value
def __Set__(self, obj, value):
return NotImplementedError("Cannot change a constant.")
class Constants(object):
DB_LOCATION = _ReadOnlyProperty('https://aresvalley.com/Storage/Artemis/Database/data.zip')
REF_LOC = _ReadOnlyProperty('https://aresvalley.com/Storage/Artemis/Database/data.zip.log')
DATA_FOLDER = _ReadOnlyProperty('Data')
SPECTRA_FOLDER = _ReadOnlyProperty('Spectra')
AUDIO_FOLDER = _ReadOnlyProperty('Audio')
ICONS_FOLDER = _ReadOnlyProperty('icons_imgs')
__Band = namedtuple("Band", ["lower", "upper"])
__ELF = __Band(0, 30) # Formally it is (3, 30) Hz.
__SLF = __Band(30, 300)
__ULF = __Band(300, 3000)
__VLF = __Band(3000, 30000)
__LF = __Band(30 * 10**3, 300 * 10**3)
__MF = __Band(300 * 10 ** 3, 3000 * 10**3)
__HF = __Band(3 * 10**6, 30 * 10**6)
__VHF = __Band(30 * 10**6, 300 * 10**6)
__UHF = __Band(300 * 10**6, 3000 * 10**6)
__SHF = __Band(3 * 10**9, 30 * 10**9)
__EHF = __Band(30 * 10**9, 300 * 10**9)
BANDS = _ReadOnlyProperty((__ELF, __SLF, __ULF, __VLF, __LF, __MF, __HF, __VHF, __UHF, __SHF, __EHF))
ACTIVE_COLOR = _ReadOnlyProperty("#39eaff")
INACTIVE_COLOR = _ReadOnlyProperty("#9f9f9f")
CONVERSION_FACTORS = _ReadOnlyProperty({"Hz":1, "kHz":1000, "MHz":1000000, "GHz":1000000000})
MODES = _ReadOnlyProperty({"FM": ["NFM", "WFM"],
"AM": [],
"CW": [],
"SK": ["FSK", "PSK", "MSK"],
"SB": ["LSB", "USB", "DSB"],
"Chirp Spread Spectrum": [],
"FHSS-TDM": [],
"RAW": [],
"SC-FDMA": [],}
)
APPLY = _ReadOnlyProperty("Apply")
REMOVE = _ReadOnlyProperty("Remove")
UNKNOWN = _ReadOnlyProperty("N/A")
MODULATIONS = _ReadOnlyProperty(["8VSB",
"AFSK",
"AM",
"BFSK",
"C4FM",
"CDMA",
"COFDM",
"CW",
"FFSK",
"FM",
"FMCW",
"FMOP",
"FSK",
"GFSK",
"GMSK",
"IFK",
"MFSK",
"MSK",
"OFDM",
"OOK",
"PAM",
"PPM",
"PSK",
"QAM",
"TDMA",])
def reset_apply_remove_btn(button):
if button.isChecked():
button.setChecked(False)
button.clicked.emit()
def checksum_ok(data, what):
code = hashlib.sha256()
code.update(data)
if what == "folder":
n = 0
elif what == "db":
n = 1
else:
raise ValueError("Wrong entry name.")
try:
reference = read_csv(Constants.REF_LOC, delimiter = '*').iat[-1, n]
except HTTPError:
return False
return code.hexdigest() == reference