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# -*- coding: utf-8 -*-
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from decimal import Decimal
class MyLineEdit(QLineEdit):
def setFrozen(self, b):
self.setReadOnly(b)
self.setFrame(not b)
class AmountEdit(MyLineEdit):
def __init__(self, base_unit, is_int = False, parent=None):
QLineEdit.__init__(self, parent)
self.base_unit = base_unit
self.textChanged.connect(self.numbify)
self.is_int = is_int
self.is_shortcut = False
self.help_palette = QPalette()
def numbify(self):
text = unicode(self.text()).strip()
if text == '!':
self.is_shortcut = True
pos = self.cursorPosition()
chars = '0123456789'
if not self.is_int: chars +='.'
s = ''.join([i for i in text if i in chars])
if not self.is_int:
if '.' in s:
p = s.find('.')
s = s.replace('.','')
s = s[:p] + '.' + s[p:p+8]
self.setText(s)
self.setCursorPosition(pos)
def paintEvent(self, event):
QLineEdit.paintEvent(self, event)
if self.base_unit:
panel = QStyleOptionFrameV2()
self.initStyleOption(panel)
textRect = self.style().subElementRect(QStyle.SE_LineEditContents, panel, self)
textRect.adjust(2, 0, -10, 0)
painter = QPainter(self)
painter.setPen(self.help_palette.brush(QPalette.Disabled, QPalette.Text).color())
painter.drawText(textRect, Qt.AlignRight | Qt.AlignVCenter, self.base_unit())
class BTCAmountEdit(AmountEdit):
def __init__(self, decimal_point, is_int = False, parent=None):
AmountEdit.__init__(self, self._base_unit, is_int, parent)
self.decimal_point = decimal_point
def _base_unit(self):
p = self.decimal_point()
assert p in [5,8]
return "BTC" if p == 8 else "mBTC"
def get_amount(self):
try:
x = Decimal(str(self.text()))
except:
return None
p = pow(10, self.decimal_point())
return int( p * x )
def setAmount(self, amount):
p = pow(10, self.decimal_point())
x = amount / Decimal(p)
self.setText(str(x))