class SimpleConnectWidget(QWidget):
"""
this widget displays a combobox with a list of instruments which the
user can connect to, it also has a refresh button
"""
def __init__(self, parent=None):
super(SimpleConnectWidget, self).__init__(parent)
# main layout of the form is the verticallayout
self.verticalLayout = QVBoxLayout()
self.verticalLayout.setObjectName("verticalLayout")
# moved the script stuff to a separate widget that lives in the toolbar
self.labelLayout = QHBoxLayout()
self.labelLayout.setObjectName("labelLayout")
self.portLabel = QLabel(self)
self.portLabel.setText("Availiable Ports")
self.instrLabel = QLabel(self)
self.instrLabel.setText("Instruments")
self.labelLayout.addWidget(self.portLabel)
self.labelLayout.addWidget(self.instrLabel)
self.verticalLayout.addLayout(self.labelLayout)
self.ports = QComboBox(self)
self.ports.addItems(refresh_device_port_list())
self.ports.setObjectName("cbb_ports")
self.instruments = QComboBox(self)
self.instruments.addItems(utils.list_drivers(interface="real")[0])
self.ports.setObjectName("cbb_instrs")
self.cbbLayout = QHBoxLayout()
self.cbbLayout.setObjectName("cbbLayout")
self.cbbLayout.addWidget(self.ports)
self.cbbLayout.addWidget(self.instruments)
self.verticalLayout.addLayout(self.cbbLayout)
self.connectButton = QPushButton(self)
self.connectButton.setText("Connect the instrument")
self.connectButton.setObjectName("connectButton")
self.refreshButton = QPushButton(self)
self.refreshButton.setText("refresh the port list")
self.refreshButton.setObjectName("refreshButton")
self.verticalLayout.addWidget(self.connectButton)
self.verticalLayout.addWidget(self.refreshButton)
self.headerTextEdit = QPlainTextEdit("")
fontsize = self.headerTextEdit.fontMetrics()
pal = QPalette()
textc = QColor(245, 245, 240)
pal.setColor(QPalette.Base, textc)
self.headerTextEdit.setPalette(pal)
# d3d3be
# self.headerTextEdit.ba
self.headerTextEdit.setFixedHeight(fontsize.lineSpacing() * 8)
self.verticalLayout.addWidget(self.headerTextEdit)
# moved the start stop button to the toolbar only
self.setLayout(self.verticalLayout)
self.connect(self.connectButton, SIGNAL('clicked()'),
self.on_connectButton_clicked)
self.connect(self.refreshButton, SIGNAL('clicked()'),
self.on_refreshButton_clicked)
def on_connectButton_clicked(self):
"""Connect a given instrument through a given port"""
port = self.ports.currentText()
instrument_name = self.instruments.currentText()
# load the module which contains the instrument's driver
if __name__ == "__main__":
class_inst = import_module(instrument_name)
else:
class_inst = import_module("." + instrument_name,
package=utils.LABDRIVER_PACKAGE_NAME)
msg = ""
# msg.append("example")
# msg.append("</span>")
self.headerTextEdit.appendHtml(msg)
# self.headerTextEdit.appendPlainText(msg)
try:
i = class_inst.Instrument(port)
self.headerTextEdit.appendPlainText("%s" % (i.identify()))
self.headerTextEdit.appendHtml(
"The connection to the instrument %s through the port %s <span style=\" color:#009933;\" >WORKED</span>\n"
% (instrument_name, port))
i.close()
except:
self.headerTextEdit.appendHtml(
"The connection to the instrument %s through the port %s <span style=\" color:#ff0000;\" >FAILED</span>\n"
% (instrument_name, port))
def on_refreshButton_clicked(self):
"""Refresh the list of the availiable ports"""
self.ports.clear()
self.ports.addItems(refresh_device_port_list())
