I want to override mouseReleaseEvent with a bunch of QActions and QMenus...
connect(action1, SIGNAL(triggered()), this, SLOT(onStepIncreased()));
connect(action5, SIGNAL(triggered()), this, SLOT(onStepIncreased()));
connect(action10, SIGNAL(triggered()), this, SLOT(onStepIncreased()));
connect(action25, SIGNAL(triggered()), this, SLOT(onStepIncreased()));
connect(action50, SIGNAL(triggered()), this, SLOT(onStepIncreased()));
So I want to pass an argument to the slot onStepIncreased
(as you can imagine they are 1,5,10,25,50). Do you know how I can do it?
Use QSignalMapper. Like this:
QSignalMapper* signalMapper = new QSignalMapper (this) ;
connect (action1, SIGNAL(triggered()), signalMapper, SLOT(map())) ;
connect (action5, SIGNAL(triggered()), signalMapper, SLOT(map())) ;
connect (action10, SIGNAL(triggered()), signalMapper, SLOT(map())) ;
connect (action25, SIGNAL(triggered()), signalMapper, SLOT(map())) ;
connect (action50, SIGNAL(triggered()), signalMapper, SLOT(map())) ;
signalMapper -> setMapping (action1, 1) ;
signalMapper -> setMapping (action5, 5) ;
signalMapper -> setMapping (action10, 10) ;
signalMapper -> setMapping (action25, 25) ;
signalMapper -> setMapping (action50, 50) ;
connect (signalMapper, SIGNAL(mapped(int)), this, SLOT(onStepIncreased(int))) ;