https://github.com/libsigcplusplus/libsigcplusplus
#include <iostream> /* ////在sigslot.h的420,将： //typedef sender_set::const_iterator const_iterator; ////改为： //typedef typename sender_set::const_iterator const_iterator; #include <sigslot.h> using namespace sigslot; //必须加上sigslot的命名空间 //在用vs调试时还需要将sigslot.h中很多的自定义模板结构类型前加typename const int TTRUE = 1; const int TFALSE = 0; class Switch { public: signal0<> Clicked; //这里的信号是不带参数的，signaln表示带几个参数 }; class Light : public has_slots<> { public: Light(bool state) { b_state = state; Displaystate(); } void ToggleState() { b_state = !b_state; Displaystate(); } //作为消息的响应 void TurnOn() { b_state = TTRUE; Displaystate(); } void TurnOff() { b_state = TFALSE; Displaystate(); } void Displaystate() { std::cout << "The state is " << b_state << std::endl; } private: bool b_state; }; void main() { Switch sw1, sw2, all_on, all_off; Light lp1(TTRUE), lp2(TFALSE); sw1.Clicked.connect(&lp1, &Light::ToggleState); //绑定 sw2.Clicked.connect(&lp2, &Light::ToggleState); all_on.Clicked.connect(&lp1, &Light::TurnOn); all_on.Clicked.connect(&lp2, &Light::TurnOn); all_off.Clicked.connect(&lp1, &Light::TurnOff); all_off.Clicked.connect(&lp2, &Light::TurnOff); sw1.Clicked(); sw2.Clicked(); all_on.Clicked(); all_off.Clicked(); sw1.Clicked.disconnect(&lp1); sw2.Clicked.disconnect(&lp2); all_on.Clicked.disconnect(&lp1); all_on.Clicked.disconnect(&lp2); all_off.Clicked.disconnect(&lp1); all_off.Clicked.disconnect(&lp2); } */ #include <sigc++/sigc++.h> class AlienDetector { public: void run() { signal_detected.emit("test"); } sigc::signal<void(std::string)> signal_detected; // changed }; void warn_people(std::string where) { std::cout << "There are aliens in " << where << "!" << std::endl; } int main_callback() { AlienDetector mydetector; auto target = mydetector.signal_detected.connect(sigc::ptr_fun(warn_people)); // return sigc::connection mydetector.run(); target.disconnect(); return 0; }
