Duncan McIntyre / SimpleGUI

Foundation classes for a basic GUI implementing simple widgets and events

Dependents:   TouchScreenGUIDemo

Events/EventDispatcher.cpp@15:e69fd74d42e4, 2016-05-21 (annotated)

Committer:
duncanFrance
Date:
Sat May 21 18:02:20 2016 +0000
Revision:
15:e69fd74d42e4
Parent:
12:63db16fea709
Child:
18:d849f3ada858
Make attach and detach register/unregister event handlers if needed.;  - need to move the event handling into widget so we can attach/detach

Who changed what in which revision?

UserRevisionLine numberNew contents of line
duncanFrance 0:0a590815d51c 1 #include "EventDispatcher.h"
duncanFrance 0:0a590815d51c 2
duncanFrance 0:0a590815d51c 3 EventDispatcher::EventDispatcher() {
duncanFrance 0:0a590815d51c 4 }
duncanFrance 0:0a590815d51c 5
duncanFrance 0:0a590815d51c 6 void EventDispatcher::attachListener(EventListener* l) {
duncanFrance 15:e69fd74d42e4 7 _listeners.appendOnce(l);
duncanFrance 0:0a590815d51c 8 }
duncanFrance 0:0a590815d51c 9
duncanFrance 0:0a590815d51c 10 void EventDispatcher::detachListener(EventListener* l) {
duncanFrance 12:63db16fea709 11 _listeners.remove(l);
duncanFrance 0:0a590815d51c 12 }
duncanFrance 0:0a590815d51c 13
duncanFrance 0:0a590815d51c 14 void EventDispatcher::dispatchEvent(Event e) {
duncanFrance 12:63db16fea709 15 EventListener* l;
duncanFrance 12:63db16fea709 16 _listeners.reset();
duncanFrance 12:63db16fea709 17 while((l=_listeners.next()) != NULL) {
duncanFrance 12:63db16fea709 18 if(l->isEventTarget(e)) {
duncanFrance 12:63db16fea709 19 l->handleEvent(e);
duncanFrance 0:0a590815d51c 20 }
duncanFrance 0:0a590815d51c 21 }
duncanFrance 0:0a590815d51c 22 }