import sys
from PyQt4 import QtCore
from PyQt4 import QtGui
class Form(QtGui.QDialog):
def __init__(self, parent=None):
super(Form, self).__init__(parent)
self.dial = QtGui.QDial()
self.dial.setNotchesVisible(True)
self.spinbox = QtGui.QSpinBox()
self.layout = QtGui.QHBoxLayout()
self.layout.addWidget(self.dial)
self.layout.addWidget(self.spinbox)
self.setLayout(self.layout)
self.connect(self.dial, QtCore.SIGNAL("valueChanged(int)"), self.spinbox.setValue)
self.connect(self.spinbox, QtCore.SIGNAL("valueChanged(int)"), self.dial.setValue)
self.setWindowTitle("Signals and Slots")
self.connect(self.dial, QtCore.SIGNAL("valueChanged(int)"),
self.spinbox, QtCore.SLOT("setValue(int)"))
self.connect(self.spinbox, QtCore.SIGNAL("valueChanged(int)"),
self.dial, QtCore.SLOT("setValue(int)"))
app = QtGui.QApplication(sys.argv)
form = Form()
form.show()
app.exec_()
