How to stop a QDialog from executing while still in the __init__ statement(or immediatly after)?
- by Jonathan
I am wondering how I can go about stopping a dialog from opening if certain conditions are met in its __init__ statement.
The following code tries to call the 'self.close()' function and it does, but (I'm assuming) since the dialog has not yet started its event loop, that it doesn't trigger the close event? So is there another way to close and/or stop the dialog from opening without triggering an event?
Example code:
from PyQt4 import QtCore, QtGui
class dlg_closeInit(QtGui.QDialog):
'''
Close the dialog if a certain condition is met in the __init__ statement
'''
def __init__(self):
QtGui.QDialog.__init__(self)
self.txt_mytext = QtGui.QLineEdit('some text')
self.btn_accept = QtGui.QPushButton('Accept')
self.myLayout = QtGui.QVBoxLayout(self)
self.myLayout.addWidget(self.txt_mytext)
self.myLayout.addWidget(self.btn_accept)
self.setLayout(self.myLayout)
# Connect the button
self.connect(self.btn_accept,QtCore.SIGNAL('clicked()'), self.on_accept)
self.close()
def on_accept(self):
# Get the data...
self.mydata = self.txt_mytext.text()
self.accept()
def get_data(self):
return self.mydata
def closeEvent(self, event):
print 'Closing...'
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
dialog = dlg_closeInit()
if dialog.exec_():
print dialog.get_data()
else:
print "Failed"
