Observer(Subject *mod, int div)
{
model = mod;
denom = div;
// 4. Observers register themselves with the Subject
model->attach(this);
}
static int tolua_CCGUI_Subject_attach00(lua_State* tolua_S)
{
#ifndef TOLUA_RELEASE
tolua_Error tolua_err;
if (
!tolua_isusertype(tolua_S,1,"Subject",0,&tolua_err) ||
(tolua_isvaluenil(tolua_S,2,&tolua_err) || !tolua_isusertype(tolua_S,2,"LUA_FUNCTION",0,&tolua_err)) ||
!tolua_isnoobj(tolua_S,3,&tolua_err)
)
goto tolua_lerror;
else
#endif
{
Subject* self = (Subject*) tolua_tousertype(tolua_S,1,0);
LUA_FUNCTION handler = *((LUA_FUNCTION*) tolua_tousertype(tolua_S,2,0));
#ifndef TOLUA_RELEASE
if (!self) tolua_error(tolua_S,"invalid 'self' in function 'attach'", NULL);
#endif
{
self->attach(handler);
}
}
return 0;
#ifndef TOLUA_RELEASE
tolua_lerror:
tolua_error(tolua_S,"#ferror in function 'attach'.",&tolua_err);
return 0;
#endif
}
void clientObserver() {
cout << "Observer\n";
Subject* subject = new Subject;
Observer* dp[] = { new Observer1, new Observer2, new Observer3};
for(size_t i=0; i<COUNT(dp); i++) {
subject->attach(dp[i]);
dp[i]->link(subject);
}
subject->notify();
cout << endl;
}
int main()
{
ObserverB ob;
ObserverA oa;
Subject sub;
sub.attach(&ob);
sub.attach(&oa);
//Notify All
sub.NotifyAll();
//detach ObserverA
sub.detach(&oa);
//Notify All
sub.NotifyAll();
return 0;
}
int main(int argc, char *argv[])
{
Subject * subject = new ConcreteSubject();
Obeserver * objA = new ConcreteObeserver("A");
Obeserver * objB = new ConcreteObeserver("B");
subject->attach(objA);
subject->attach(objB);
subject->setState(1);
subject->notify();
cout << "--------------------" << endl;
subject->detach(objB);
subject->setState(2);
subject->notify();
delete subject;
delete objA;
delete objB;
return 0;
}
Observer(Subject* mod, int div){
model = mod;
denom = div;
model->attach(this);
}
