CODEWITHSUNDEEP
c++qt
Nyaruko
Nyaruko

Reputation: 4499

Qt signal mapping

I understand that we could use QSignalMapper to collect a set of parameterless signals, and re-emit them with integer, string or widget parameters corresponding to the object that sent the signal.

But could we do the reverse? For example, is it possible to achieve:

connect(control,startVehicle(0),vehcileList[0],startReceived());
connect(control,startVehicle(1),vehcileList[1],startReceived());
connect(control,startVehicle(2),vehcileList[2],startReceived());

instead of having 3 different signals from control as 

startVehicle_1();
startVehicle_2(); 
startVehicle_3();

Upvotes: 1

Views: 337

Answers (1)

Pavel Strakhov
Pavel Strakhov

Reputation: 40512

There is a simpler way:

connect(control, SIGNAL(startVehicle(int)), this, SLOT(startReceived(i)));

//in startReceived(i) slot
vehcileList[i]->startReceived();

Upvotes: 1

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