git-svn-id: svn://db.shs.com.ru/pip@6 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

doc/examples/pistatemachine.cpp

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+//! [main]
+#include "pip.h"
+
+enum Mode {Start, Manual, Auto, Finish, End};
+
+class Machine: public PIStateMachine<Mode> {
+	PIOBJECT(Machine)
+public:
+	Machine() {
+		addState(Start, "start", HANDLER(startFunc));
+		addState(Manual, "manual", HANDLER(manualFunc));
+		addState(Auto, "auto", HANDLER(autoFunc));
+		addState(Finish, "finish", HANDLER(finishFunc));
+		addState(End, "end", HANDLER(endFunc));
+		
+		addRule(Start, Manual, "init_ok", HANDLER(beginManualFunc));
+		addRule(Start, Auto, "init_ok", HANDLER(beginAutoFunc));
+		addRule(Manual, Auto, HANDLER(manualToAutoFunc));
+		addRule(Auto, Manual, HANDLER(autoToManualFunc));
+		addRule(Manual, Finish);
+		addRule(Auto, Finish);
+		Rule r(Finish, End);
+		r.addCondition("finish_0_ok");
+		r.addCondition("finish_1_ok", 2);
+		addRule(r);
+		
+		setInitialState(Start);
+		
+		CONNECT2(void, void*, int, &timer, timeout, this, tick);
+		timer.start(500);
+	}
+	virtual void execution(const State & state) {
+		piCout << "performed conditions:" << currentConditions();
+	}
+	virtual void transition(const State & from, const State & to) {
+		piCout << "switch from" << from.name << "to" << to.name << "state";
+	}
+	
+	EVENT_HANDLER(void, startFunc) {piCout << "start function";}
+	EVENT_HANDLER(void, manualFunc) {piCout << "manual function";}
+	EVENT_HANDLER(void, autoFunc) {piCout << "auto function";}
+	EVENT_HANDLER(void, finishFunc) {piCout << "finish function";}
+	EVENT_HANDLER(void, endFunc) {piCout << "end function";}
+	EVENT_HANDLER(void, beginManualFunc) {piCout << "begin manual function";}
+	EVENT_HANDLER(void, beginAutoFunc) {piCout << "begin auto function";}
+	EVENT_HANDLER(void, autoToManualFunc) {piCout << "switch from auto to manual function";}
+	EVENT_HANDLER(void, manualToAutoFunc) {piCout << "switch from manual to auto function";}
+	
+	PITimer timer;
+};
+
+Machine machine;
+
+void key_event(char key, void*) {
+	switch (key) {
+	case 's': machine.switchToState(Start); break;
+	case 'm': machine.switchToState(Manual); break;
+	case 'a': machine.switchToState(Auto); break;
+	case 'f': machine.switchToState(Finish); break;
+	case 'e': machine.switchToState(End); break;
+	case '1': machine.performCondition("init_ok"); break;
+	case '2': machine.performCondition("finish_0_ok"); break;
+	case '3': machine.performCondition("finish_1_ok"); break;
+	case 'r': machine.resetConditions(); break;
+	case 'R': machine.reset(); break;
+	}
+}
+
+int main(int argc, char * argv[]) {
+	PIKbdListener kbd(key_event);
+	kbd.enableExitCapture();
+	WAIT_FOR_EXIT
+};
+//! [main]