class MainWindow(QWidget):
# set up signals
resetClicked = pyqtSignal()
inputChanged = pyqtSignal()
input_one = None
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
# --------------------------------------------------------
# main window
self.setObjectName("Multiply")
self.resize(400, 300)
# label
self.label = QLabel(self)
self.label.setGeometry(QRect(20, 10, 250, 50))
self.label.setText("Multiply two numbers!")
# self.label.show()
# input frame
self.input_frame = QFrame(self)
self.input_frame.setGeometry(QRect(20, 60, 350, 130))
self.input_frame.setFrameShape(QFrame.StyledPanel)
self.input_frame.setFrameShadow(QFrame.Raised)
# set the layout of the frame
self.verticalLayout = QVBoxLayout(self.input_frame)
self.verticalLayout.setObjectName("verticalLayout")
# first input
self.input_one = QDoubleSpinBox(self.input_frame)
self.input_one.setObjectName("input_one")
self.input_one.setDecimals(4)
self.input_one.setSingleStep(0.01)
self.verticalLayout.addWidget(self.input_one)
# second input
self.input_two = QDoubleSpinBox(self.input_frame)
self.input_two.setObjectName("input_two")
self.input_two.setDecimals(4)
self.input_two.setSingleStep(0.01)
self.verticalLayout.addWidget(self.input_two)
# LCD result
self.result_lcd = QLCDNumber(self)
self.result_lcd.setObjectName("result_lcd")
self.result_lcd.setGeometry(QRect(20, 200, 350, 80))
self.result_lcd.setDigitCount(10)
self.result_lcd.setSmallDecimalPoint(True)
# Reset Button
self.reset_button = QPushButton(self)
self.reset_button.setGeometry(QRect(270, 10, 100, 30))
self.reset_button.setObjectName("reset_button")
self.reset_button.setText("Reset")
# --------------------------------------------------------
# connect slots
self.reset_button.clicked.connect(self.onResetClick)
self.input_one.valueChanged.connect(self.onInputChanged)
self.input_two.valueChanged.connect(self.onInputChanged)
# define slots
def onResetClick(self):
self.resetClicked.emit()
def onInputChanged(self):
self.inputChanged.emit()
def setResult(self, value):
self.result_lcd.display(value)
