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from PyQt4.QtGui import *
from electrum.i18n import _
import datetime
from collections import defaultdict
from electrum.util import format_satoshis
from electrum.bitcoin import COIN
import matplotlib
matplotlib.use('Qt4Agg')
import matplotlib.pyplot as plt
import matplotlib.dates as md
from matplotlib.patches import Ellipse
from matplotlib.offsetbox import AnchoredOffsetbox, TextArea, DrawingArea, HPacker
def plot_history(wallet, history):
hist_in = defaultdict(int)
hist_out = defaultdict(int)
for item in history:
tx_hash, height, confirmations, timestamp, value, balance = item
if not confirmations:
continue
if timestamp is None:
continue
value = value*1./COIN
date = datetime.datetime.fromtimestamp(timestamp)
datenum = int(md.date2num(datetime.date(date.year, date.month, 1)))
if value > 0:
hist_in[datenum] += value
else:
hist_out[datenum] -= value
f, axarr = plt.subplots(2, sharex=True)
plt.subplots_adjust(bottom=0.2)
plt.xticks( rotation=25 )
ax = plt.gca()
plt.ylabel('BTC')
plt.xlabel('Month')
xfmt = md.DateFormatter('%Y-%m-%d')
ax.xaxis.set_major_formatter(xfmt)
axarr[0].set_title('Monthly Volume')
xfmt = md.DateFormatter('%Y-%m')
ax.xaxis.set_major_formatter(xfmt)
width = 20
dates, values = zip(*sorted(hist_in.items()))
r1 = axarr[0].bar(dates, values, width, label='incoming')
axarr[0].legend(loc='upper left')
dates, values = zip(*sorted(hist_out.items()))
r2 = axarr[1].bar(dates, values, width, color='r', label='outgoing')
axarr[1].legend(loc='upper left')
return plt