PyQT-application crash when shutting down
Albert Hofkamp
hat at se-46.wpa.wtb.tue.nl
Tue Jan 21 11:34:49 EST 2003
Hello all,
I am writing an animation application using PyQt at a Redhat 7.2 machine
(RPM: PyQt-devel-3.1-2).
The application seems to be working fine, but when I press the 'Quit'
button (which sends a 'clicked' signal to the 'quit' slot of the main
application), I get a "segmentation fault".
Below is a stripped-down application that demonstrates the problem (at
least at my machine):
#!/usr/bin/python1.5
#
import sys
from qt import *
class QuitButton(QPushButton):
def __init__(self,*args):
apply(QPushButton.__init__,(self,)+args)
self.setText("Quit")
class AnimationWidget(QWidget):
def __init__(self,*args):
apply(QWidget.__init__,(self,)+args)
# Set default background
self.setBackgroundMode(QWidget.PaletteBase)
def paintEvent(self,ev):
pen = QPen()
pen.setWidth(1)
pen.setColor( QColor(125,253,32) )
painter=QPainter(self)
painter.setPen(pen)
painter.drawRect(50,50,50,30)
class ApplicationWindow(QFrame):
def __init__(self,*args):
apply(QFrame.__init__,(self,)+args)
self._quit=QuitButton(self)
self._animation=AnimationWidget(self)
self._grid=QGridLayout(self,2,2) # 2rows, 2 columns
self._grid.setColStretch(1,2)
self._grid.setRowStretch(0,2)
self._grid.addWidget(self._quit,1,0) # quit button at row 1, col 0
self._grid.addMultiCellWidget(self._animation,0,0,0,1)
# animation widget in row 0, columns 0 and 1
if __name__ == '__main__':
app=QApplication(sys.argv)
aw=ApplicationWindow()
app.setMainWidget(aw)
app.connect(aw._quit,SIGNAL("clicked()"),app,SLOT("quit()"))
aw.show()
app.exec_loop()
I don't understand why this happens. If the application is closed with the
'close window' button, it exits without problems.
Any ideas?
Albert
--
Unlike popular belief, the .doc format is not an open publically available format.
More information about the Python-list
mailing list