c++ - Connecting the GUI and Calculations in Qt Application -

i writing qt application calculations. to separate in project 2 parts: part related gui , part responsible calculations. recommend best way so? examples appreciated.

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my idea in main.cpp file:

int main(int argc, char *argv[]) {     qapplication app(argc, argv);       mainwindow mw; // responsible gui     mw.show();      maincomputation mc; // responsible calculations      return app.exec(); } 

i need establish connections between 2 parts.

you need create maincomputation class shown here (mainly inherit qobject, include q_object macro in class declaration , label methods slots).

then need hook signals , slots between gui elements signals (mouseclick, buttonpress, etc..., checkout each widgets available signals) , instance of maincomputation objects slots. done connect statement. kinda this

connect(mw.ui->btn,signal(clicked(bool)),&mc,slot(dosomething())); 

there simple example lot of information available @ qt docs.