You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
140 lines
4.1 KiB
140 lines
4.1 KiB
from PyQt4.QtGui import *
|
|
from PyQt4.QtCore import *
|
|
|
|
import decimal
|
|
import httplib
|
|
import json
|
|
import threading
|
|
import re
|
|
from decimal import Decimal
|
|
from electrum.plugins import BasePlugin
|
|
from electrum.i18n import _
|
|
from electrum_gui.qt.util import *
|
|
|
|
|
|
class Exchanger(threading.Thread):
|
|
|
|
def __init__(self, parent):
|
|
threading.Thread.__init__(self)
|
|
self.daemon = True
|
|
self.parent = parent
|
|
self.quote_currencies = None
|
|
self.lock = threading.Lock()
|
|
|
|
def exchange(self, btc_amount, quote_currency):
|
|
with self.lock:
|
|
if self.quote_currencies is None:
|
|
return None
|
|
quote_currencies = self.quote_currencies.copy()
|
|
if quote_currency not in quote_currencies:
|
|
return None
|
|
return btc_amount * quote_currencies[quote_currency]
|
|
|
|
def run(self):
|
|
try:
|
|
connection = httplib.HTTPConnection('blockchain.info')
|
|
connection.request("GET", "/ticker")
|
|
except Exception:
|
|
return
|
|
response = connection.getresponse()
|
|
if response.reason == httplib.responses[httplib.NOT_FOUND]:
|
|
return
|
|
try:
|
|
response = json.loads(response.read())
|
|
except Exception:
|
|
return
|
|
quote_currencies = {}
|
|
try:
|
|
for r in response:
|
|
quote_currencies[r] = self._lookup_rate(response, r)
|
|
with self.lock:
|
|
self.quote_currencies = quote_currencies
|
|
self.parent.set_currencies(quote_currencies)
|
|
except KeyError:
|
|
pass
|
|
|
|
|
|
def get_currencies(self):
|
|
return [] if self.quote_currencies == None else sorted(self.quote_currencies.keys())
|
|
|
|
def _lookup_rate(self, response, quote_id):
|
|
return decimal.Decimal(str(response[str(quote_id)]["15m"]))
|
|
|
|
|
|
class Plugin(BasePlugin):
|
|
|
|
def fullname(self):
|
|
return "Exchange rates"
|
|
|
|
def description(self):
|
|
return """exchange rates, retrieved from blockchain.info"""
|
|
|
|
|
|
def __init__(self,a,b):
|
|
BasePlugin.__init__(self,a,b)
|
|
self.currencies = [self.config.get('currency', "EUR")]
|
|
|
|
def init(self):
|
|
self.win = self.gui.main_window
|
|
self.win.connect(self.win, SIGNAL("refresh_currencies()"), self.win.update_status)
|
|
# Do price discovery
|
|
self.exchanger = Exchanger(self)
|
|
self.exchanger.start()
|
|
self.gui.exchanger = self.exchanger #
|
|
|
|
def set_currencies(self, quote_currencies):
|
|
self.currencies = sorted(quote_currencies.keys())
|
|
self.win.emit(SIGNAL("refresh_currencies()"))
|
|
self.win.emit(SIGNAL("refresh_currencies_combo()"))
|
|
|
|
def set_quote_text(self, btc_balance, r):
|
|
r[0] = self.create_quote_text(Decimal(btc_balance) / 100000000)
|
|
|
|
def create_quote_text(self, btc_balance):
|
|
quote_currency = self.config.get("currency", "EUR")
|
|
quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
|
|
if quote_balance is None:
|
|
quote_text = ""
|
|
else:
|
|
quote_text = "%.2f %s" % (quote_balance, quote_currency)
|
|
return quote_text
|
|
|
|
|
|
def requires_settings(self):
|
|
return True
|
|
|
|
|
|
def toggle(self):
|
|
out = BasePlugin.toggle(self)
|
|
self.win.update_status()
|
|
return out
|
|
|
|
|
|
def settings_widget(self, window):
|
|
combo = QComboBox()
|
|
|
|
def on_change(x):
|
|
cur_request = str(self.currencies[x])
|
|
if cur_request != self.config.get('currency', "EUR"):
|
|
self.config.set_key('currency', cur_request, True)
|
|
self.win.update_status()
|
|
|
|
def set_currencies(combo):
|
|
try:
|
|
combo.clear()
|
|
except Exception:
|
|
return
|
|
combo.addItems(self.currencies)
|
|
try:
|
|
index = self.currencies.index(self.config.get('currency', "EUR"))
|
|
except Exception:
|
|
index = 0
|
|
combo.setCurrentIndex(index)
|
|
|
|
set_currencies(combo)
|
|
combo.currentIndexChanged.connect(on_change)
|
|
combo.connect(window, SIGNAL('refresh_currencies_combo()'), lambda: set_currencies(combo))
|
|
return combo
|
|
|
|
|
|
|
|
|