Scalable buttons
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Hello.
Consider using checkable buttons (void QAbstractButton::setCheckable(bool)).
Or you can connect every button to a slot similar to this:
@void MyClass::onButtonPressed()
{
QPushButton* button = qobject_cast< QPushButton* >( sender() );
if( !button )
return;
button->setStyleSheet( "background-color: red;" );
}@