class QTZOCPNode(QtGui.QWidget):
def __init__(self):
super(QTZOCPNode, self).__init__()
# Set name of Node
self.nodename = "QT Sliders@%s" % socket.gethostname()
self.init_zocp()
self.initUI()
def init_zocp(self):
self.z = ZOCP()
self.z.set_name(self.nodename)
self.notifier = QtCore.QSocketNotifier(
self.z.inbox.getsockopt(zmq.FD),
QtCore.QSocketNotifier.Read
)
self.notifier.setEnabled(True)
self.notifier.activated.connect(self.zocp_event)
self.z.start()
def initUI(self):
# Create Sliders
sld1 = self.createSlider("slider1",0,100)
sld2 = self.createSlider("slider2",0,100)
sld3 = self.createSlider("slider3",0,100)
# Create Layout Grid
grid = QtGui.QGridLayout()
grid.setSpacing(10)
# add all the widgets to the grid
grid.addWidget(sld1, 1, 1)
grid.addWidget(sld1.label, 2, 1)
grid.addWidget(sld2, 1, 2)
grid.addWidget(sld2.label, 2, 2)
grid.addWidget(sld3, 1, 3)
grid.addWidget(sld3.label, 2, 3)
# set layout of window
self.setLayout(grid)
self.setGeometry(300, 300, 280, 170)
self.setWindowTitle(self.nodename)
self.show()
def createSlider(self, _id, _min, _max):
sld = QtGui.QSlider(QtCore.Qt.Vertical, self)
sld.setAccessibleName(_id)
sld.setFocusPolicy(QtCore.Qt.NoFocus)
sld.valueChanged[int].connect(self.changeValue)
sld.setMinimum(_min)
sld.setMaximum(_max)
sld.label = QtGui.QLabel(self)
sld.label.setText(_id)
# Register the ZOCP variable
self.z.register_float(_id, 0, access='rwe', min=_min, max=_max, step=1)
return sld
def changeValue(self, value):
sender = self.sender().accessibleName()
zl.debug("value ",value," id ",sender)
# ZOCP: HANDLE VALUE CHANGE
self.z.emit_signal(sender, value)
# HANDLE INCOMING ZOCP MESSAGES
def zocp_event(self):
self.z.run_once(0)
def closeEvent(self, *args):
zl.debug(args)
self.z.stop()
