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#
# Moisture control - Serial communication widgets
#
# Copyright (c) 2013 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from pymoistcontrol.util import *
import os
class SerialOpenDialog(QDialog):
"""Serial port connection dialog."""
def __init__(self, parent):
"""Class constructor."""
QDialog.__init__(self, parent)
self.setLayout(QGridLayout(self))
self.setWindowTitle("Select serial port")
self.portCombo = QComboBox(self)
if os.name.lower() == "posix":
# Unix operating system
# Add all serial devices from /dev to
# the combo box.
devNodes = QDir("/dev").entryInfoList(QDir.System,
QDir.Name)
select = None
for node in devNodes:
name = node.fileName()
if not name.startswith("ttyS") and\
not name.startswith("ttyUSB"):
continue
path = node.filePath()
self.portCombo.addItem(path, path)
if select is None and\
name.startswith("ttyUSB"):
# Select the first ttyUSB by default.
select = self.portCombo.count() - 1
if select is not None:
self.portCombo.setCurrentIndex(select)
elif os.name.lower() in ("nt", "ce"):
# Windows operating system
# Add 8 COM ports to the combo box.
for i in range(8):
port = "COM%d" % (i + 1)
self.portCombo.addItem(port, port)
else:
raise Error("Operating system not supported")
self.layout().addWidget(self.portCombo, 0, 0, 1, 2)
self.okButton = QPushButton("&Ok", self)
self.layout().addWidget(self.okButton, 1, 0)
self.cancelButton = QPushButton("&Cancel", self)
self.layout().addWidget(self.cancelButton, 1, 1)
self.okButton.released.connect(self.accept)
self.cancelButton.released.connect(self.reject)
def getSelectedPort(self):
"""Get the selected port name."""
index = self.portCombo.currentIndex()
if index < 0:
return None
return self.portCombo.itemData(index)
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