def __init__(self, rfid_thread, parent=None):
QtGui.QWidget.__init__(self, parent)
self.rfid_thread = rfid_thread
# Views:
self.label = QtGui.QLabel("Amount to deposit:")
self.label.setAlignment(QtCore.Qt.AlignRight)
self.amount_line = AmountLine()
self.amount_line.grabKeyboard()
self.msg = MessageLine()
self.stack = QtGui.QStackedWidget()
self.empty_page = QtGui.QWidget(self.stack)
self.balance_page = BalancePage(self.stack)
self.stack.addWidget(self.empty_page)
self.stack.addWidget(self.balance_page)
# Layout:
grid = QtGui.QGridLayout()
grid.addWidget(self.label, 0, 0)
grid.addWidget(self.amount_line, 0, 1)
grid.addWidget(self.stack, 1, 0, 1, 2)
grid.addWidget(self.msg, 2, 1)
self.setLayout(grid)
# Connect signals:
if parent != None:
self.parentWidget().currentChanged.connect(self.tabChanged)
self.rfid_thread.rfid_signal.connect(self.rfidEvent)
self.amount_line.right_pressed.connect(self.rightPressed)
self.amount_line.left_pressed.connect(self.leftPressed)
self.amount_line.up_pressed.connect(self.upPressed)
self.amount_line.down_pressed.connect(self.downPressed)
self.amount_line.escape_pressed.connect(self.escapePressed)
class DepositWidget(QtGui.QWidget):
label = None
amount_line = None
msg = None
stack = None
balance_page = None
empty_page = None
def __init__(self, rfid_thread, parent=None):
QtGui.QWidget.__init__(self, parent)
self.rfid_thread = rfid_thread
# Views:
self.label = QtGui.QLabel("Amount to deposit:")
self.label.setAlignment(QtCore.Qt.AlignRight)
self.amount_line = AmountLine()
self.amount_line.grabKeyboard()
self.msg = MessageLine()
self.stack = QtGui.QStackedWidget()
self.empty_page = QtGui.QWidget(self.stack)
self.balance_page = BalancePage(self.stack)
self.stack.addWidget(self.empty_page)
self.stack.addWidget(self.balance_page)
# Layout:
grid = QtGui.QGridLayout()
grid.addWidget(self.label, 0, 0)
grid.addWidget(self.amount_line, 0, 1)
grid.addWidget(self.stack, 1, 0, 1, 2)
grid.addWidget(self.msg, 2, 1)
self.setLayout(grid)
# Connect signals:
if parent != None:
self.parentWidget().currentChanged.connect(self.tabChanged)
self.rfid_thread.rfid_signal.connect(self.rfidEvent)
self.amount_line.right_pressed.connect(self.rightPressed)
self.amount_line.left_pressed.connect(self.leftPressed)
self.amount_line.up_pressed.connect(self.upPressed)
self.amount_line.down_pressed.connect(self.downPressed)
self.amount_line.escape_pressed.connect(self.escapePressed)
def _reset(self):
self.amount_line.setText("")
self.stack.setCurrentIndex(0)
def _tabHasFocus(self):
"""Returns True if self is the parrents current widget, or if there is
no parent. Otherwise return False.
"""
parent = self.parentWidget()
if parent == None or parent.currentWidget() == self:
return True
return False
def tabChanged(self, index):
if self.parentWidget().widget(index) == self:
self.amount_line.grabKeyboard()
else:
self.amount_line.releaseKeyboard()
def leftPressed(self):
self.amount_line.addToAmount(-1)
self.amount_line.selectAll()
def rightPressed(self):
self.amount_line.addToAmount(1)
self.amount_line.selectAll()
def upPressed(self):
self.amount_line.addToAmount(10)
self.amount_line.selectAll()
def downPressed(self):
self.amount_line.addToAmount(-10)
self.amount_line.selectAll()
def escapePressed(self):
self._reset()
def rfidEvent(self, rfid_str):
# Guard: This widget has focus?
if not self._tabHasFocus():
return
# Get amount:
try:
txt = self.amount_line.text()
if txt == "":
txt = "0"
amount = int(txt)
if float(amount) != float(txt):
amount = None
self.msg.post("Deposit amount must be an integer", self.msg.STYLE_ERROR)
except ValueError:
amount = None
self.msg.post("Deposit amount must be an integer", self.msg.STYLE_ERROR)
# Get card:
try:
card = RFIDCard.objects.get(rfid_string=unicode(rfid_str))
except RFIDCard.DoesNotExist:
self.msg.post("RFID card not found", self.msg.STYLE_ERROR)
card = None
# Execute deposit:
if card != None and amount != None:
if amount > 0:
deposit_money(card.account, amount)
self._reset()
self.msg.post(u"An amount of %d,- was deposited" % amount, self.msg.STYLE_DEPOSIT)
self.balance_page.showPage(card.account)
else:
self._reset()
self.balance_page.showPage(card.account)