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source: orxonox.OLD/branches/terrain/src/lib/event/event_handler.h @ 8465

Last change on this file since 8465 was 8148, checked in by bensch, 19 years ago

trunk: output of EventListener Nicer

File size: 2.5 KB
Line 
1/*!
2 * @file event_handler.h
3 * Definition of the EventHandler
4 *
5 */
6
7#ifndef _EVENT_HANDLER_H
8#define _EVENT_HANDLER_H
9
10#include "base_object.h"
11#include "key_mapper.h"
12#include "event_def.h"
13#include "event.h"
14#include <stack>
15#include <vector>
16
17// FORWARD DECLARATION
18class EventListener;
19
20//! The one Event Handler from Orxonox
21class EventHandler : public BaseObject
22{
23
24public:
25  virtual ~EventHandler();
26  /** @returns a Pointer to the only object of this Class */
27  inline static EventHandler* getInstance() { if (!singletonRef) singletonRef = new EventHandler();  return singletonRef; };
28  void init();
29
30  void setState(elState state);
31  /** @returns the current state */
32inline elState getState() const { return this->state; };
33
34  void pushState(elState state);
35  elState popState();
36
37  void subscribe(EventListener* el, elState state, int eventType);
38  void unsubscribe(EventListener* el, elState state, int eventType);
39  void unsubscribe(EventListener* el, elState state = ES_ALL);
40  void flush(elState state);
41  /** @returns true, if the @param state has @param eventType subscribed?? */
42  bool isSubscribed(elState state, int eventType);
43
44
45  void withUNICODE(elState state, bool enableUNICODE);
46  void grabEvents(bool grabEvents);
47  bool grabbedEvents() const { return this->eventsGrabbed; };
48
49  void process() const;
50  void dispachEvent(elState state, const Event& event) const;
51
52  static int eventFilter(const SDL_Event *event);
53  void debug() const;
54
55  static const std::string& ELStateToString(elState state);
56  static elState StringToELState(const std::string& stateName);
57
58private:
59  EventHandler();
60
61  bool findListener(std::vector<EventListener*>::iterator* it, elState state, int eventType, EventListener* listener);
62
63public:
64  static const std::string     stateNames[];
65
66private:
67  static EventHandler*         singletonRef;                    //!< the singleton reference
68
69  std::vector<EventListener*>  listeners[ES_NUMBER][EV_NUMBER]; //!< a list of registered listeners.
70  elState                      state;                           //!< the state of the event handlder.
71  std::stack<short>            stateStack;                      //!< a stack for the States we are in.
72  KeyMapper                    keyMapper;                       //!< reference to the key mapper.
73
74  bool                         bUNICODE[ES_NUMBER];             //!< If unicode should be enabled.
75  bool                         eventsGrabbed;                   //!< If the events should be grabbed
76};
77
78
79#endif /* _EVENT_HANDLER_H */
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