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00026 #include "CEGUIEvent.h"
00027
00028 #if defined (_MSC_VER)
00029 # pragma warning(disable : 4251)
00030 # pragma warning(disable : 4786)
00031 # if !defined (_MSC_EXTENSIONS)
00032 # pragma warning (disable : 4224)
00033 # endif
00034 #endif
00035
00036
00037
00038 namespace CEGUI {
00039
00040 class ConnectionImpl : public Event::ConnectionInterface {
00041 public:
00042 ConnectionImpl(Event* event_, Event::Group group_, Event::Subscriber subscriber_) :
00043 event(event_), group(group_), subscriber(subscriber_)
00044 {
00045 }
00046
00047 virtual bool connected()
00048 {
00049 return event != 0;
00050 }
00051
00052 virtual void disconnect()
00053 {
00054 if (event)
00055 {
00056 event->unsubscribe(subscriber, group);
00057 }
00058
00059 }
00060
00061 protected:
00062 Event* event;
00063 Event::Group group;
00064 Event::Subscriber subscriber;
00065
00066 friend class Event;
00067 };
00068
00069
00070 Event::Event(const String& name) : d_name(name)
00071 {
00072 }
00073
00074
00075 Event::~Event()
00076 {
00077 ConnectionOrdering::iterator i = connectionOrdering.begin();
00078 for (;i != connectionOrdering.end(); i++)
00079 {
00080 if (((ConnectionImpl*)i->second.get())->event)
00081 {
00082 i->first.subscriber.release();
00083 }
00084
00085 }
00086 }
00087
00088
00089 Event::Connection Event::subscribe(Group group, Subscriber subscriber)
00090 {
00091 ConnectionImpl* conn = new ConnectionImpl(this, group, subscriber);
00092 connectionOrdering[GroupSubscriber(group, subscriber)] = conn;
00093 return conn;
00094 }
00095
00096
00097 void Event::operator()(EventArgs& args)
00098 {
00099 ConnectionOrdering::iterator i = connectionOrdering.begin();
00100
00101 for (;i != connectionOrdering.end(); ++i)
00102 {
00103 if (((ConnectionImpl*)i->second.get())->event)
00104 {
00105 args.handled |= i->first.subscriber(args);
00106 }
00107
00108 }
00109
00110 }
00111
00112
00113 bool Event::unsubscribe(Subscriber subscriber, Group group)
00114 {
00115 ConnectionOrdering::iterator j = connectionOrdering.find(GroupSubscriber(group, subscriber));
00116
00117 if (j == connectionOrdering.end())
00118 {
00119 return false;
00120 }
00121
00122 ConnectionImpl* c = (ConnectionImpl*)j->second.get();
00123 c->event = 0;
00124 c->subscriber.release();
00125 connectionOrdering.erase(j);
00126 return true;
00127 }
00128
00129 }
00130