QTabWidget-如何“包含”指向每个选项卡的指针？

Question

I'm trying to make a simple communicator, with UI based on tabs (QTabWidget). I want tabs to be closeable and movable. Still, for every tab I would like to remember a pointer to my class (where I keep socket etc.), so I could manage closing tabs and disconnecting sockets.

One way is to keep them(pointers) in array / any container, analyze any move that was done by a user, and change indexes or swap pointers dependently on index of tabs, that were moved, but this involves a lot of work, and even more bugs. Is there any other and simpler way I could get it?

Answer 1

Use myTabWidget->widget(index) .

There is one for each tab.

Doc

You can set the widget as the parent of your class if your class inherits from QObject , or connect its signals (like destroyed() ) with that of your class.

Or you can even do

QVariant prop = QVariant::fromValue<intptr_t>((intptr_t)workerObject);
myTabWidget->widget(index)->setProperty("workerObject", prop);

to really store the pointer, and

QVariant prop =  myTabWidget->widget(index)->getProperty("workerObject");
WorkerClass *ptr = (WorkerClass*) prop.value<intptr_t>();

to get it back.