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from PyQt4.QtGui import *
from electrum.plugins import BasePlugin, hook
from electrum.i18n import _
import random
class Plugin(BasePlugin):
vkb = None
vkb_index = 0
@hook
def password_dialog(self, pw, grid, pos):
vkb_button = QPushButton(_("+"))
vkb_button.setFixedWidth(20)
vkb_button.clicked.connect(lambda: self.toggle_vkb(grid, pw))
grid.addWidget(vkb_button, pos, 2)
self.kb_pos = 2
self.vkb = None
def toggle_vkb(self, grid, pw):
if self.vkb:
grid.removeItem(self.vkb)
self.vkb = self.virtual_keyboard(self.vkb_index, pw)
grid.addLayout(self.vkb, self.kb_pos, 0, 1, 3)
self.vkb_index += 1
def virtual_keyboard(self, i, pw):
i = i%3
if i == 0:
chars = 'abcdefghijklmnopqrstuvwxyz '
elif i == 1:
chars = 'ABCDEFGHIJKLMNOPQRTSUVWXYZ '
elif i == 2:
chars = '1234567890!?.,;:/%&()[]{}+-'
n = len(chars)
s = []
for i in xrange(n):
while True:
k = random.randint(0,n-1)
if k not in s:
s.append(k)
break
def add_target(t):
return lambda: pw.setText(str(pw.text()) + t)
vbox = QVBoxLayout()
grid = QGridLayout()
grid.setSpacing(2)
for i in range(n):
l_button = QPushButton(chars[s[i]])
l_button.setFixedWidth(25)
l_button.setFixedHeight(25)
l_button.clicked.connect(add_target(chars[s[i]]))
grid.addWidget(l_button, i/6, i%6)
vbox.addLayout(grid)
return vbox