I created a form with several QPushButtons and linked a SLOT to each of the buttons. At this moment I have, for each button, a SLOT different. Although each button performs a different function, part of the process is equal regardless of the button. At the end the pressed button is disabled.
My question is this: Is it possible to create a generic SLOT that would bind to each of the buttons, and within that, determine which button was pressed?
Yes, it is possible. And it's easier than it might seem at first. You can use the sender ()
void processEvent() {
QPushButton *button_ = qobject_cast<QPushButton *>(sender());
if (button_) {
if (button_ == button1) { //button1 foi pressionado
executeSomethingB1();
}
else {
if (button_ == button2) { //button1 foi pressionado
executeSomethingB2();
}
}
executeGenericAction(); //ação genérica
button_->setEnabled(false); //desactiva o botão que foi pressionado
}
}
One final note, you can not use this method when SLOT is called through Qt :: DirectConnection from a different thread. Do not use this function in this particular case.