Olay sinyali her seferinde iki kez gönderiliyor

Question

GUI uygulamasında çalışıyorum. Ana pencereden yeni açılan pencereyi açıyorum Dialog = myDialog() (her ikisi de şimdi açık). ben bu kod ile yeni açılan penceresindeki düğmesine ve yakalamak sinyalini basarsanız:

class Ui_DialogCalibration(object): 
def setupUi(self, DialogCalibration): 
    DialogCalibration.setObjectName(_fromUtf8("DialogCalibration")) 
    DialogCalibration.resize(888, 378) 
    self.widget = QtGui.QWidget(DialogCalibration) 
    self.widget.setGeometry(QtCore.QRect(10, 150, 641, 144)) 
    self.widget.setObjectName(_fromUtf8("widget")) 
    self.horizontalLayout_5 = QtGui.QHBoxLayout(self.widget) 
    self.horizontalLayout_5.setMargin(0) 
    self.horizontalLayout_5.setObjectName(_fromUtf8("horizontalLayout_5")) 
    self.radioButtonManual = QtGui.QRadioButton(self.widget) 
    self.radioButtonManual.setObjectName(_fromUtf8("radioButtonManual")) 
    self.horizontalLayout_5.addWidget(self.radioButtonManual) 
    self.verticalLayout = QtGui.QVBoxLayout() 
    self.verticalLayout.setObjectName(_fromUtf8("verticalLayout")) 
    self.horizontalLayout_4 = QtGui.QHBoxLayout() 
    self.horizontalLayout_4.setObjectName(_fromUtf8("horizontalLayout_4")) 
    self.verticalLayout_4 = QtGui.QVBoxLayout() 
    self.verticalLayout_4.setObjectName(_fromUtf8("verticalLayout_4")) 
    self.pushButtonDesnoX = QtGui.QPushButton(self.widget) 
    self.pushButtonDesnoX.setObjectName(_fromUtf8("pushButtonDesnoX")) 
    self.verticalLayout_4.addWidget(self.pushButtonDesnoX) 
    self.lineEdit = QtGui.QLineEdit(self.widget) 
    self.lineEdit.setText(_fromUtf8("")) 
    self.lineEdit.setObjectName(_fromUtf8("lineEdit")) 
    self.verticalLayout_4.addWidget(self.lineEdit) 
    self.pushButtonLijevoX = QtGui.QPushButton(self.widget) 
    self.pushButtonLijevoX.setObjectName(_fromUtf8("pushButtonLijevoX")) 
    self.verticalLayout_4.addWidget(self.pushButtonLijevoX) 
    self.horizontalLayout_4.addLayout(self.verticalLayout_4) 
    self.verticalLayout_3 = QtGui.QVBoxLayout() 
    self.verticalLayout_3.setObjectName(_fromUtf8("verticalLayout_3")) 
    self.pushButtonDesnoY = QtGui.QPushButton(self.widget) 
    self.pushButtonDesnoY.setObjectName(_fromUtf8("pushButtonDesnoY")) 
    self.verticalLayout_3.addWidget(self.pushButtonDesnoY) 
    self.lineEdit_2 = QtGui.QLineEdit(self.widget) 
    self.lineEdit_2.setText(_fromUtf8("")) 
    self.lineEdit_2.setObjectName(_fromUtf8("lineEdit_2")) 
    self.verticalLayout_3.addWidget(self.lineEdit_2) 
    self.pushButtonLijevoY = QtGui.QPushButton(self.widget) 
    self.pushButtonLijevoY.setObjectName(_fromUtf8("pushButtonLijevoY")) 
    self.verticalLayout_3.addWidget(self.pushButtonLijevoY) 
    self.horizontalLayout_4.addLayout(self.verticalLayout_3) 
    self.verticalLayout_2 = QtGui.QVBoxLayout() 
    self.verticalLayout_2.setObjectName(_fromUtf8("verticalLayout_2")) 
    self.pushButtonDesnoZ = QtGui.QPushButton(self.widget) 
    self.pushButtonDesnoZ.setObjectName(_fromUtf8("pushButtonDesnoZ")) 
    self.verticalLayout_2.addWidget(self.pushButtonDesnoZ) 
    self.lineEdit_3 = QtGui.QLineEdit(self.widget) 
    self.lineEdit_3.setText(_fromUtf8("")) 
    self.lineEdit_3.setObjectName(_fromUtf8("lineEdit_3")) 
    self.verticalLayout_2.addWidget(self.lineEdit_3) 
    self.pushButtoLijevoZ = QtGui.QPushButton(self.widget) 
    self.pushButtoLijevoZ.setObjectName(_fromUtf8("pushButtoLijevoZ")) 
    self.verticalLayout_2.addWidget(self.pushButtoLijevoZ) 
    self.horizontalLayout_4.addLayout(self.verticalLayout_2) 
    self.verticalLayout.addLayout(self.horizontalLayout_4) 
    self.pushButtonSondaSettings = QtGui.QPushButton(self.widget) 
    self.pushButtonSondaSettings.setObjectName(_fromUtf8("pushButtonSondaSettings")) 
    self.verticalLayout.addWidget(self.pushButtonSondaSettings) 
    self.pushButtonReset = QtGui.QPushButton(self.widget) 
    self.pushButtonReset.setObjectName(_fromUtf8("pushButtonReset")) 
    self.verticalLayout.addWidget(self.pushButtonReset) 
    self.horizontalLayout_5.addLayout(self.verticalLayout) 
    self.verticalLayout_5 = QtGui.QVBoxLayout() 
    self.verticalLayout_5.setObjectName(_fromUtf8("verticalLayout_5")) 
    self.labelPozition = QtGui.QLabel(self.widget) 
    self.labelPozition.setObjectName(_fromUtf8("labelPozition")) 
    self.verticalLayout_5.addWidget(self.labelPozition) 
    self.horizontalLayout = QtGui.QHBoxLayout() 
    self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout")) 
    self.labelpozitionX = QtGui.QLabel(self.widget) 
    self.labelpozitionX.setObjectName(_fromUtf8("labelpozitionX")) 
    self.horizontalLayout.addWidget(self.labelpozitionX) 
    self.lineEditPozitionX = QtGui.QLineEdit(self.widget) 
    self.lineEditPozitionX.setObjectName(_fromUtf8("lineEditPozitionX")) 
    self.horizontalLayout.addWidget(self.lineEditPozitionX) 
    self.verticalLayout_5.addLayout(self.horizontalLayout) 
    self.horizontalLayout_2 = QtGui.QHBoxLayout() 
    self.horizontalLayout_2.setObjectName(_fromUtf8("horizontalLayout_2")) 
    self.labelPozitionY = QtGui.QLabel(self.widget) 
    self.labelPozitionY.setObjectName(_fromUtf8("labelPozitionY")) 
    self.horizontalLayout_2.addWidget(self.labelPozitionY) 
    self.lineEditPozitionY = QtGui.QLineEdit(self.widget) 
    self.lineEditPozitionY.setObjectName(_fromUtf8("lineEditPozitionY")) 
    self.horizontalLayout_2.addWidget(self.lineEditPozitionY) 
    self.verticalLayout_5.addLayout(self.horizontalLayout_2) 
    self.horizontalLayout_3 = QtGui.QHBoxLayout() 
    self.horizontalLayout_3.setObjectName(_fromUtf8("horizontalLayout_3")) 
    self.labelPozitionZ = QtGui.QLabel(self.widget) 
    self.labelPozitionZ.setObjectName(_fromUtf8("labelPozitionZ")) 
    self.horizontalLayout_3.addWidget(self.labelPozitionZ) 
    self.lineEditPozitionZ = QtGui.QLineEdit(self.widget) 
    self.lineEditPozitionZ.setObjectName(_fromUtf8("lineEditPozitionZ")) 
    self.horizontalLayout_3.addWidget(self.lineEditPozitionZ) 
    self.verticalLayout_5.addLayout(self.horizontalLayout_3) 
    self.horizontalLayout_5.addLayout(self.verticalLayout_5) 
    self.widget1 = QtGui.QWidget(DialogCalibration) 
    self.widget1.setGeometry(QtCore.QRect(20, 40, 631, 91)) 
    self.widget1.setObjectName(_fromUtf8("widget1")) 
    self.verticalLayout_6 = QtGui.QVBoxLayout(self.widget1) 
    self.verticalLayout_6.setMargin(0) 
    self.verticalLayout_6.setObjectName(_fromUtf8("verticalLayout_6")) 
    self.radioButtonAutomatic = QtGui.QRadioButton(self.widget1) 
    self.radioButtonAutomatic.setObjectName(_fromUtf8("radioButtonAutomatic")) 
    self.verticalLayout_6.addWidget(self.radioButtonAutomatic) 
    self.buttonBox = QtGui.QDialogButtonBox(self.widget1) 
    self.buttonBox.setOrientation(QtCore.Qt.Horizontal) 
    self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok) 
    self.buttonBox.setObjectName(_fromUtf8("buttonBox")) 
    self.verticalLayout_6.addWidget(self.buttonBox) 
    self.labelpozitionX.setBuddy(self.lineEditPozitionX) 
    self.labelPozitionY.setBuddy(self.lineEditPozitionY) 
    self.labelPozitionZ.setBuddy(self.lineEditPozitionZ) 
    self.radioButtonManual.toggle() 
    self.buttonBox.setEnabled(False) 
    self.pushButtonDesnoX.setEnabled(False) 
    self.pushButtonDesnoY.setEnabled(False) 
    self.pushButtonDesnoZ.setEnabled(False) 
    self.pushButtonLijevoX.setEnabled(False) 
    self.pushButtonLijevoY.setEnabled(False) 
    self.pushButtoLijevoZ.setEnabled(False) 
    self.pushButtonReset.setEnabled(False) 
    self.lineEdit.setText("1") 
    self.lineEdit_2.setText("1") 
    self.lineEdit_3.setText("1") 
    self.X=None 
    self.Y=None 
    self.Z=None 

    self.retranslateUi(DialogCalibration) 
    QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), DialogCalibration.accept) 
    QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), DialogCalibration.reject) 
    QtCore.QMetaObject.connectSlotsByName(DialogCalibration) 

class myDialog(QtGui.QDialog,Ui_DialogCalibration): 
def __init__(self,sonda, parent=None): 
    super(myDialog, self).__init__(parent) 
    self.toupleSonda=sonda 
    self.setupUi(self) 
def on_pushButtonDesnoX_clicked(self): 

    value=int(self.lineEdit.text()) 
    self.X=self.X+value 
    print self.X 

def retranslateUi(self, DialogCalibration): 
    DialogCalibration.setWindowTitle(QtGui.QApplication.translate("DialogCalibration", "Calibration", None, QtGui.QApplication.UnicodeUTF8)) 
    self.radioButtonManual.setText(QtGui.QApplication.translate("DialogCalibration", "manual", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonDesnoX.setText(QtGui.QApplication.translate("DialogCalibration", "Desno X", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonLijevoX.setText(QtGui.QApplication.translate("DialogCalibration", "Lijevo X", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonDesnoY.setText(QtGui.QApplication.translate("DialogCalibration", "Naprijed Y", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonLijevoY.setText(QtGui.QApplication.translate("DialogCalibration", "Nazad Y", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonDesnoZ.setText(QtGui.QApplication.translate("DialogCalibration", "Gore Z", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtoLijevoZ.setText(QtGui.QApplication.translate("DialogCalibration", "Dolje Z", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonSondaSettings.setText(QtGui.QApplication.translate("DialogCalibration", "Load", None, QtGui.QApplication.UnicodeUTF8)) 
    self.pushButtonReset.setText(QtGui.QApplication.translate("DialogCalibration", "Reset", None, QtGui.QApplication.UnicodeUTF8)) 
    self.labelPozition.setText(QtGui.QApplication.translate("DialogCalibration", "Current pozition", None, QtGui.QApplication.UnicodeUTF8)) 
    self.labelpozitionX.setText(QtGui.QApplication.translate("DialogCalibration", "X", None, QtGui.QApplication.UnicodeUTF8)) 
    self.labelPozitionY.setText(QtGui.QApplication.translate("DialogCalibration", "Y", None, QtGui.QApplication.UnicodeUTF8)) 
    self.labelPozitionZ.setText(QtGui.QApplication.translate("DialogCalibration", "Z", None, QtGui.QApplication.UnicodeUTF8)) 
    self.radioButtonAutomatic.setText(QtGui.QApplication.translate("DialogCalibration", "automatic", None, QtGui.QApplication.UnicodeUTF8)) 

İki kez bu oouput

Yani, bu yöntem çalıştırıldıktan

var . Bu sorunu nasıl giderebilirim? Aynı docs den aktaran açılır penceredeki

Answer 1

üzerinde emmitted her sinyal olur:

[sinyalin iki varyasyonunu bağlanması]

da isteğe bağlı bağımsız değişkenler alan sinyallerle olur. Qt , bunu çoklu sinyaller kullanarak gerçekleştirir. pyqtSlot() dekoratör yuvasına bağlı olmalıdır sinyallerin arasında belirtmek için kullanılabilir

void clicked(); 
void clicked(bool checked); 

:

void clicked(bool checked = false); 

QT aşağıdaki gibi, bu uygular: Örneğin, QtGui.QAbstractButton aşağıdaki sinyali var .

Yani mesele bir QPushButton ait clicked sinyal iki aşırı yükleme yaparak sahip olmasından kaynaklanır. Qt, sinyalleri daha az argüman içeren yuvalara bağlayabildiğinden, connectSlotsByName her iki aşırı yükü de yuvanıza başarıyla bağlayabilir ve böylece her tıklama için yuvayı iki kez çağırabilir.

Sen pyqtSlot tarafından uygun aşırı belirtmek gerekir:

@QtCore.pyqtSlot() # signal with no arguments 
def on_pushButtonDesnoX_clicked(self): 
    value=int(self.lineEdit.text()) 
    self.X=self.X+value 
    print self.X