1.codeclassGranPa:publicQObject{Q_OBJECTpublic:explicitGranPa(QObject*parent=nullptr);signals:voidgran_siga();voidgran_sigb();voidgran_sigc();publicslots:voidgran_slota();voidgran_slotb();voidgran_slotc();};GranPa::GranPa(QOb