Qt-interest Archive, April 2007
Cancel signal for modeless QFileDialog ?
Message 1 in thread
Hello,
I use QFileDialog in modeless (non modal) mode with QT 3.3.x. I want to
have two signals from this dialog :
-> One when a file is selected and the user press "Save" or "Read"
button. This signal already exists ("fileSelected()") and works fine.
-> An other one when the user closes the file selection dialog without
pressing "Save" or "Read" button. This signal doesn't seems to exist, so
I am unable to know whether the file dialog is still alive or not.
I tried to subclass QFileDialog in order to emit a "cancel()" signal
whenever closeEvent() & hideEvent() are called.
It works fine but this signal is also emited when I click "Save" button
which is not ok ...
Then I tried to test "result()" function return value, but this function
returns a wrong value in modeless mode (in fact the value is updated
after the closeEvent() call).
Here is the code of the subclassed closeEvent() function :
void IREFileDialog::closeEvent(QCloseEvent * event)
{
if(result() == QFileDialog::Rejected) emit(cancel());
QFileDialog::closeEvent(event);
}
To sum-up, the question is : how to emit a "cancel()" signal with
QFileDialog when and ONLY when the user press the "Cancel" button or the
cross ?
Thanks for your help,
Xavier
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