Vfrdtyky

I am currently working in a panel in Nuke 11 that opens a QDialog and I was wondering how to get a value from it into my main class when I close my QDialog ? The QDialog is in a different class. This is a simplified example that shows my problem :

import nuke

from nukescripts import panels

try:

  ## < Nuke11

    import PySide.QtGui as QtGui

    import PySide.QtCore as QtCore



except:

  ## >= Nuke11

    import PySide2.QtCore as QtCore

    import PySide2.QtGui as QtGui

    import PySide2.QtWidgets as QtGui

    from PySide2.QtWidgets import QWidget as QWidget



class Example(QtGui.QWidget):

    def __init__(self):

        super(Example,self).__init__()

        layout = QtGui.QVBoxLayout()



        button = QtGui.QPushButton('Get Value')

        button.clicked.connect(self.someFunction)



        layout.addWidget(button)

        self.setLayout(layout)



    def someFunction(self):

        value = self.GetValueLineEdit()

        if value :

            # do something



    def GetValueLineEdit(self):

        class getValuePanel(QtGui.QDialog):

            def __init__(self):

                super(getValuePanel, self).__init__()

                layout = QtGui.QHBoxLayout()



                self.lineEdit = QtGui.QLineEdit('')



                getValueButton = QtGui.QPushButton('Get Value')

                getValueButton.clicked.connect(self.getValue)



                layout.addWidget(self.lineEdit)

                layout.addWidget(getValueButton)

                self.setLayout(layout)



            def getValue(self):

                value = str(self.lineEdit.text())

                getValuePanel.accept() #To Close the QDialog

                return value



        getValuePanel = getValuePanel()

        getValuePanel.show()



pane = nuke.getPaneFor("Example.panel")

panels.registerWidgetAsPanel('Example', 'Example',"", True).addToPane(pane)

Thanks a lot,

First of all you do not create classes within other classes, it is considered a bad practice. On the other hand what returns a slot is not used since no one receives it, so what returns getValue will be lost, what you must do is that the clicked call accept closing the QDialog and after verifying that the dialogue has been accepted you just have to call getValue:

class ValuePanel(QtGui.QDialog):

    def __init__(self):

        super(ValuePanel, self).__init__()

        self.lineEdit = QtGui.QLineEdit()

        getValueButton = QtGui.QPushButton('Get Value')

        getValueButton.clicked.connect(self.accept)



        layout = QtGui.QHBoxLayout(self)

        layout.addWidget(self.lineEdit)

        layout.addWidget(getValueButton)



    def getValue(self):

        value = str(self.lineEdit.text())

        return value



class Example(QtGui.QWidget):

    def __init__(self):

        super(Example,self).__init__()

        button = QtGui.QPushButton('Get Value')

        button.clicked.connect(self.someFunction)



        layout = QtGui.QVBoxLayout(self)

        layout.addWidget(button)



    @QtCore.Slot()

    def someFunction(self):

        value_panel = ValuePanel()

        if value_panel.exec_() == QtGui.QDialog.Accepted:

            print(value_panel.getValue())