我正在尝试将一个Qpushbutton添加到“ comTool项目”。 代码中的称为sendcmd1，我希望它将字符串“ attn -D”发送到串行端口。
当我按下sendcmd1按钮时，字符串似乎已发送到textarea，但是只有在按下send按钮之后，字符串才被发送到串行端口，而在按下sendcmd1时则不自动。 谁能告诉我为什么？
class MainWindow(QMainWindow):
receiveUpdateSignal = pyqtSignal(str)
errorSignal = pyqtSignal(str)
showSerialComboboxSignal = pyqtSignal()
setDisableSettingsSignal = pyqtSignal(bool)
isDetectSerialPort = False
receiveCount = 0
sendCount = 0
isScheduledSending = False
DataPath = "./"
isHideSettings = False
isHideFunctinal = True
app = None
isWaveOpen = False
def __init__(self,app):
super().__init__()
self.app = app
pathDirList = sys.argv[0].replace("\\", "/").split("/")
pathDirList.pop()
self.DataPath = os.path.abspath("/".join(str(i) for i in pathDirList))
if not os.path.exists(self.DataPath + "/" + parameters.strDataDirName):
pathDirList.pop()
self.DataPath = os.path.abspath("/".join(str(i) for i in pathDirList))
self.DataPath = (self.DataPath + "/" + parameters.strDataDirName).replace("\\", "/")
self.initWindow()
self.initTool()
self.initEvent()
self.programStartGetSavedParameters()
def __del__(self):
pass
def initTool(self):
self.com = serial.Serial()
def initWindow(self):
QToolTip.setFont(QFont('SansSerif', 10))
# main layout
frameWidget = QWidget()
mainWidget = QSplitter(Qt.Horizontal)
frameLayout = QVBoxLayout()
self.settingWidget = QWidget()
self.settingWidget.setProperty("class","settingWidget")
self.receiveSendWidget = QSplitter(Qt.Vertical)
self.functionalWiget = QWidget()
settingLayout = QVBoxLayout()
sendReceiveLayout = QVBoxLayout()
sendFunctionalLayout = QVBoxLayout()
mainLayout = QHBoxLayout()
self.settingWidget.setLayout(settingLayout)
self.receiveSendWidget.setLayout(sendReceiveLayout)
self.functionalWiget.setLayout(sendFunctionalLayout)
mainLayout.addWidget(self.settingWidget)
mainLayout.addWidget(self.receiveSendWidget)
mainLayout.addWidget(self.functionalWiget)
mainLayout.setStretch(0,2)
mainLayout.setStretch(1, 6)
mainLayout.setStretch(2, 2)
menuLayout = QHBoxLayout()
mainWidget.setLayout(mainLayout)
frameLayout.addLayout(menuLayout)
frameLayout.addWidget(mainWidget)
frameWidget.setLayout(frameLayout)
self.setCentralWidget(frameWidget)
# option layout
self.settingsButton = QPushButton()
self.skinButton = QPushButton("")
# self.waveButton = QPushButton("")
self.aboutButton = QPushButton()
self.functionalButton = QPushButton()
self.encodingCombobox = ComboBox()
self.encodingCombobox.addItem("ASCII")
self.encodingCombobox.addItem("UTF-8")
self.encodingCombobox.addItem("UTF-16")
self.encodingCombobox.addItem("GBK")
self.encodingCombobox.addItem("GB2312")
self.encodingCombobox.addItem("GB18030")
self.settingsButton.setProperty("class", "menuItem1")
self.skinButton.setProperty("class", "menuItem2")
self.aboutButton.setProperty("class", "menuItem3")
self.functionalButton.setProperty("class", "menuItem4")
# self.waveButton.setProperty("class", "menuItem5")
self.settingsButton.setObjectName("menuItem")
self.skinButton.setObjectName("menuItem")
self.aboutButton.setObjectName("menuItem")
self.functionalButton.setObjectName("menuItem")
# self.waveButton.setObjectName("menuItem")
menuLayout.addWidget(self.settingsButton)
menuLayout.addWidget(self.skinButton)
# menuLayout.addWidget(self.waveButton)
menuLayout.addWidget(self.aboutButton)
menuLayout.addStretch(0)
menuLayout.addWidget(self.encodingCombobox)
menuLayout.addWidget(self.functionalButton)
# widgets receive and send area
self.receiveArea = QTextEdit()
self.sendArea = QTextEdit()
self.clearReceiveButtion = QPushButton(parameters.strClearReceive)
self.sendButtion = QPushButton(parameters.strSend)
self.sendHistory = ComboBox()
sendWidget = QWidget()
sendAreaWidgetsLayout = QHBoxLayout()
sendWidget.setLayout(sendAreaWidgetsLayout)
buttonLayout = QVBoxLayout()
buttonLayout.addWidget(self.clearReceiveButtion)
buttonLayout.addStretch(1)
buttonLayout.addWidget(self.sendButtion)
sendAreaWidgetsLayout.addWidget(self.sendArea)
sendAreaWidgetsLayout.addLayout(buttonLayout)
sendReceiveLayout.addWidget(self.receiveArea)
sendReceiveLayout.addWidget(sendWidget)
sendReceiveLayout.addWidget(self.sendHistory)
sendReceiveLayout.setStretch(0, 7)
sendReceiveLayout.setStretch(1, 2)
sendReceiveLayout.setStretch(2, 1)
# widgets serial settings
serialSettingsGroupBox = QGroupBox(parameters.strSerialSettings)
serialSettingsLayout = QGridLayout()
serialReceiveSettingsLayout = QGridLayout()
serialSendSettingsLayout = QGridLayout()
serialPortLabek = QLabel(parameters.strSerialPort)
serailBaudrateLabel = QLabel(parameters.strSerialBaudrate)
serailBytesLabel = QLabel(parameters.strSerialBytes)
serailParityLabel = QLabel(parameters.strSerialParity)
serailStopbitsLabel = QLabel(parameters.strSerialStopbits)
self.serialPortCombobox = ComboBox()
self.serailBaudrateCombobox = ComboBox()
self.serailBaudrateCombobox.addItem("9600")
self.serailBaudrateCombobox.addItem("19200")
self.serailBaudrateCombobox.addItem("38400")
self.serailBaudrateCombobox.addItem("57600")
self.serailBaudrateCombobox.addItem("115200")
self.serailBaudrateCombobox.setCurrentIndex(4)
self.serailBaudrateCombobox.setEditable(True)
self.serailBytesCombobox = ComboBox()
self.serailBytesCombobox.addItem("5")
self.serailBytesCombobox.addItem("6")
self.serailBytesCombobox.addItem("7")
self.serailBytesCombobox.addItem("8")
self.serailBytesCombobox.setCurrentIndex(3)
self.serailParityCombobox = ComboBox()
self.serailParityCombobox.addItem("None")
self.serailParityCombobox.addItem("Odd")
self.serailParityCombobox.addItem("Even")
self.serailParityCombobox.addItem("Mark")
self.serailParityCombobox.addItem("Space")
self.serailParityCombobox.setCurrentIndex(0)
self.serailStopbitsCombobox = ComboBox()
self.serailStopbitsCombobox.addItem("1")
self.serailStopbitsCombobox.addItem("1.5")
self.serailStopbitsCombobox.addItem("2")
self.serailStopbitsCombobox.setCurrentIndex(0)
self.checkBoxRts = QCheckBox("rts")
self.checkBoxDtr = QCheckBox("dtr")
self.serialOpenCloseButton = QPushButton(parameters.strOpen)
serialSettingsLayout.addWidget(serialPortLabek,0,0)
serialSettingsLayout.addWidget(serailBaudrateLabel, 1, 0)
serialSettingsLayout.addWidget(serailBytesLabel, 2, 0)
serialSettingsLayout.addWidget(serailParityLabel, 3, 0)
serialSettingsLayout.addWidget(serailStopbitsLabel, 4, 0)
serialSettingsLayout.addWidget(self.serialPortCombobox, 0, 1)
serialSettingsLayout.addWidget(self.serailBaudrateCombobox, 1, 1)
serialSettingsLayout.addWidget(self.serailBytesCombobox, 2, 1)
serialSettingsLayout.addWidget(self.serailParityCombobox, 3, 1)
serialSettingsLayout.addWidget(self.serailStopbitsCombobox, 4, 1)
serialSettingsLayout.addWidget(self.checkBoxRts, 5, 0,1,1)
serialSettingsLayout.addWidget(self.checkBoxDtr, 5, 1,1,1)
serialSettingsLayout.addWidget(self.serialOpenCloseButton, 6, 0,1,2)
serialSettingsGroupBox.setLayout(serialSettingsLayout)
settingLayout.addWidget(serialSettingsGroupBox)
# serial receive settings
serialReceiveSettingsGroupBox = QGroupBox(parameters.strSerialReceiveSettings)
self.receiveSettingsAscii = QRadioButton(parameters.strAscii)
self.receiveSettingsHex = QRadioButton(parameters.strHex)
self.receiveSettingsAscii.setChecked(True)
self.receiveSettingsAutoLinefeed = QCheckBox(parameters.strAutoLinefeed)
self.receiveSettingsAutoLinefeedTime = QLineEdit(parameters.strAutoLinefeedTime)
self.receiveSettingsAutoLinefeed.setMaximumWidth(75)
self.receiveSettingsAutoLinefeedTime.setMaximumWidth(75)
serialReceiveSettingsLayout.addWidget(self.receiveSettingsAscii,1,0,1,1)
serialReceiveSettingsLayout.addWidget(self.receiveSettingsHex,1,1,1,1)
serialReceiveSettingsLayout.addWidget(self.receiveSettingsAutoLinefeed, 2, 0, 1, 1)
serialReceiveSettingsLayout.addWidget(self.receiveSettingsAutoLinefeedTime, 2, 1, 1, 1)
serialReceiveSettingsGroupBox.setLayout(serialReceiveSettingsLayout)
settingLayout.addWidget(serialReceiveSettingsGroupBox)
# serial send settings
serialSendSettingsGroupBox = QGroupBox(parameters.strSerialSendSettings)
self.sendSettingsAscii = QRadioButton(parameters.strAscii)
self.sendSettingsHex = QRadioButton(parameters.strHex)
self.sendSettingsAscii.setChecked(True)
self.sendSettingsScheduledCheckBox = QCheckBox(parameters.strScheduled)
self.sendSettingsScheduled = QLineEdit(parameters.strScheduledTime)
self.sendSettingsScheduledCheckBox.setMaximumWidth(75)
self.sendSettingsScheduled.setMaximumWidth(75)
self.sendSettingsCFLF = QCheckBox(parameters.strCRLF)
self.sendSettingsCFLF.setChecked(False)
serialSendSettingsLayout.addWidget(self.sendSettingsAscii,1,0,1,1)
serialSendSettingsLayout.addWidget(self.sendSettingsHex,1,1,1,1)
serialSendSettingsLayout.addWidget(self.sendSettingsScheduledCheckBox, 2, 0, 1, 1)
serialSendSettingsLayout.addWidget(self.sendSettingsScheduled, 2, 1, 1, 1)
serialSendSettingsLayout.addWidget(self.sendSettingsCFLF, 3, 0, 1, 2)
serialSendSettingsGroupBox.setLayout(serialSendSettingsLayout)
settingLayout.addWidget(serialSendSettingsGroupBox)
settingLayout.setStretch(0, 5)
settingLayout.setStretch(1, 2.5)
settingLayout.setStretch(2, 2.5)
# right functional layout
self.filePathWidget = QLineEdit()
self.openFileButton = QPushButton("Open File")
self.sendFileButton = QPushButton("Send File")
self.sendcmd1= QPushButton("attn -D")
self.sendcmd2= QPushButton("attn -5lEvElbAl ")
self.clearHistoryButton = QPushButton("Clear History")
self.addButton = QPushButton(parameters.strAdd)
fileSendGroupBox = QGroupBox(parameters.strSendFile)
fileSendGridLayout = QGridLayout()
fileSendGridLayout.addWidget(self.filePathWidget, 0, 0, 1, 1)
fileSendGridLayout.addWidget(self.openFileButton, 0, 1, 1, 1)
fileSendGridLayout.addWidget(self.sendFileButton, 1, 0, 1, 2)
fileSendGridLayout.addWidget(self.sendcmd1, 2, 1, 1, 0)
fileSendGridLayout.addWidget(self.sendcmd2, 3, 0, 1, 0)
fileSendGroupBox.setLayout(fileSendGridLayout)
sendFunctionalLayout.addWidget(fileSendGroupBox)
sendFunctionalLayout.addWidget(self.clearHistoryButton)
# sendFunctionalLayout.addWidget(self.addButton)
sendFunctionalLayout.addStretch(1)
self.isHideFunctinal = True
self.hideFunctional()
# main window
self.statusBarStauts = QLabel()
self.statusBarStauts.setMinimumWidth(80)
self.statusBarStauts.setText("<font color=%s>%s</font>" %("#008200", parameters.strReady))
self.statusBarSendCount = QLabel(parameters.strSend+"(bytes): "+"0")
self.statusBarReceiveCount = QLabel(parameters.strReceive+"(bytes): "+"0")
self.statusBar().addWidget(self.statusBarStauts)
self.statusBar().addWidget(self.statusBarSendCount,2)
self.statusBar().addWidget(self.statusBarReceiveCount,3)
# self.statusBar()
self.resize(800, 500)
self.MoveToCenter()
self.setWindowTitle(parameters.appName+" V"+str(helpAbout.versionMajor)+"."+str(helpAbout.versionMinor))
icon = QIcon()
print("icon path:"+self.DataPath+"/"+parameters.appIcon)
icon.addPixmap(QPixmap(self.DataPath+"/"+parameters.appIcon), QIcon.Normal, QIcon.Off)
self.setWindowIcon(icon)
if sys.platform == "win32":
ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID("comtool")
self.show()
print("config file path:",parameters.configFilePath)
def initEvent(self):
self.serialOpenCloseButton.clicked.connect(self.openCloseSerial)
self.sendButtion.clicked.connect(self.sendData)
self.receiveUpdateSignal.connect(self.updateReceivedDataDisplay)
self.clearReceiveButtion.clicked.connect(self.clearReceiveBuffer)
self.serialPortCombobox.clicked.connect(self.portComboboxClicked)
self.sendSettingsHex.clicked.connect(self.onSendSettingsHexClicked)
self.sendSettingsAscii.clicked.connect(self.onSendSettingsAsciiClicked)
self.errorSignal.connect(self.errorHint)
self.showSerialComboboxSignal.connect(self.showCombobox)
# self.showBaudComboboxSignal.connect(self.showBaudCombobox)
self.setDisableSettingsSignal.connect(self.setDisableSettings)
self.sendHistory.currentIndexChanged.connect(self.sendHistoryIndexChanged)
self.settingsButton.clicked.connect(self.showHideSettings)
self.skinButton.clicked.connect(self.skinChange)
self.aboutButton.clicked.connect(self.showAbout)
self.openFileButton.clicked.connect(self.selectFile)
self.sendFileButton.clicked.connect(self.sendFile)
self.sendcmd1.clicked.connect(self.sendCMD)
self.clearHistoryButton.clicked.connect(self.clearHistory)
self.addButton.clicked.connect(self.functionAdd)
self.functionalButton.clicked.connect(self.showHideFunctional)
self.sendArea.currentCharFormatChanged.connect(self.sendAreaFontChanged)
# self.waveButton.clicked.connect(self.openWaveDisplay)
self.checkBoxRts.clicked.connect(self.rtsChanged)
self.checkBoxDtr.clicked.connect(self.dtrChanged)
self.myObject=MyClass(self)
slotLambda = lambda: self.indexChanged_lambda(self.myObject)
self.serialPortCombobox.currentIndexChanged.connect(slotLambda)
# @QtCore.pyqtSlot(str)
def indexChanged_lambda(self, obj):
mainObj = obj.arg
# print("item changed:",mainObj.serialPortCombobox.currentText())
self.serialPortCombobox.setToolTip(mainObj.serialPortCombobox.currentText())
def openCloseSerialProcess(self):
try:
if self.com.is_open:
self.receiveProgressStop = True
self.com.close()
self.setDisableSettingsSignal.emit(False)
else:
try:
self.com.baudrate = int(self.serailBaudrateCombobox.currentText())
self.com.port = self.serialPortCombobox.currentText().split(" ")[0]
self.com.bytesize = int(self.serailBytesCombobox.currentText())
self.com.parity = self.serailParityCombobox.currentText()[0]
self.com.stopbits = float(self.serailStopbitsCombobox.currentText())
self.com.timeout = None
if self.checkBoxRts.isChecked():
self.com.rts = False
else:
self.com.rts = True
if self.checkBoxDtr.isChecked():
self.com.dtr = False
else:
self.com.dtr = True
self.com.open()
# print("open success")
# print(self.com)
self.setDisableSettingsSignal.emit(True)
self.receiveProcess = threading.Thread(target=self.receiveData)
self.receiveProcess.setDaemon(True)
self.receiveProcess.start()
except Exception as e:
self.com.close()
self.receiveProgressStop = True
self.errorSignal.emit( parameters.strOpenFailed +"\n"+ str(e))
self.setDisableSettingsSignal.emit(False)
except Exception as e:
print(e)
def setDisableSettings(self, disable):
if disable:
self.serialOpenCloseButton.setText(parameters.strClose)
self.statusBarStauts.setText("<font color=%s>%s</font>" % ("#008200", parameters.strReady))
self.serialPortCombobox.setDisabled(True)
self.serailBaudrateCombobox.setDisabled(True)
self.serailParityCombobox.setDisabled(True)
self.serailStopbitsCombobox.setDisabled(True)
self.serailBytesCombobox.setDisabled(True)
self.serialOpenCloseButton.setDisabled(False)
else:
self.serialOpenCloseButton.setText(parameters.strOpen)
self.statusBarStauts.setText("<font color=%s>%s</font>" % ("#f31414", parameters.strClosed))
self.serialPortCombobox.setDisabled(False)
self.serailBaudrateCombobox.setDisabled(False)
self.serailParityCombobox.setDisabled(False)
self.serailStopbitsCombobox.setDisabled(False)
self.serailBytesCombobox.setDisabled(False)
self.programExitSaveParameters()
def openCloseSerial(self):
t = threading.Thread(target=self.openCloseSerialProcess)
t.setDaemon(True)
t.start()
def rtsChanged(self):
if self.checkBoxRts.isChecked():
self.com.setRTS(False)
else:
self.com.setRTS(True)
def dtrChanged(self):
if self.checkBoxDtr.isChecked():
self.com.setDTR(False)
else:
self.com.setDTR(True)
def portComboboxClicked(self):
self.detectSerialPort()
def getSendData(self):
data = self.sendArea.toPlainText()
if self.sendSettingsCFLF.isChecked():
data = data.replace("\n", "\r\n")
if self.sendSettingsHex.isChecked():
if self.sendSettingsCFLF.isChecked():
data = data.replace("\r\n", " ")
else:
data = data.replace("\n", " ")
data = self.hexStringB2Hex(data)
if data == -1:
self.errorSignal.emit( parameters.strWriteFormatError)
return -1
else:
data = data.encode(self.encodingCombobox.currentText(),"ignore")
return data
def getSendDataCMD(self):
data = ('attn -D')
if self.sendSettingsCFLF.isChecked():
data = data.replace("\n", "\r\n")
if self.sendSettingsHex.isChecked():
if self.sendSettingsCFLF.isChecked():
data = data.replace("\r\n", " ")
else:
data = data.replace("\n", " ")
data = self.hexStringB2Hex(data)
if data == -1:
self.errorSignal.emit( parameters.strWriteFormatError)
return -1
else:
data = data.encode(self.encodingCombobox.currentText(),"ignore")
return data
def sendData(self):
try:
if self.com.is_open:
data = self.getSendData()
if data == -1:
return
# print(self.sendArea.toPlainText())
# print("send:",data)
self.sendCount += len(data)
self.com.write(data)
data = self.sendArea.toPlainText()
self.sendHistoryFindDelete(data)
self.sendHistory.insertItem(0,data)
self.sendHistory.setCurrentIndex(0)
self.receiveUpdateSignal.emit("")
self.sendSettingsScheduledCheckBox.isChecked()
# scheduled send
if self.sendSettingsScheduledCheckBox.isChecked():
if not self.isScheduledSending:
t = threading.Thread(target=self.scheduledSend)
t.setDaemon(True)
t.start()
except Exception as e:
self.errorSignal.emit(parameters.strWriteError)
# print(e)
def sendCMD(self):
try:
if self.com.is_open:
data = self.getSendDataCMD()
if data == -1:
return
# print(self.sendArea.toPlainText())
# print("send:",data)
self.sendCount += len(data)
self.com.write(data)
data = self.sendArea.toPlainText()
self.sendHistoryFindDelete(data)
self.sendHistory.insertItem(0,data)
self.sendHistory.setCurrentIndex(0)
self.receiveUpdateSignal.emit("")
self.sendSettingsScheduledCheckBox.isChecked()
# scheduled send
if self.sendSettingsScheduledCheckBox.isChecked():
if not self.isScheduledSending:
t = threading.Thread(target=self.scheduledSend)
t.setDaemon(True)
t.start()
except Exception as e:
self.errorSignal.emit(parameters.strWriteError)
# print(e)
def scheduledSend(self):
self.isScheduledSending = True
while self.sendSettingsScheduledCheckBox.isChecked():
self.sendData()
try:
time.sleep(int(self.sendSettingsScheduled.text().strip())/1000)
except Exception:
self.errorSignal.emit(parameters.strTimeFormatError)
self.isScheduledSending = False
def scheduledSendCMD(self):
self.isScheduledSending = True
while self.sendSettingsScheduledCheckBox.isChecked():
self.sendCMD()
try:
time.sleep(int(self.sendSettingsScheduled.text().strip())/1000)
except Exception:
self.errorSignal.emit(parameters.strTimeFormatError)
self.isScheduledSending = False
````python