KeyPressEventServer.h

00001 #ifndef KEYPRESS_EVENT_SERVER_H_
00002 #define KEYPRESS_EVENT_SERVER_H_
00003 
00004 #include "kbd_mgr/KeyboardEventServer.h"
00005 #include "kbd_mgr/KeyPressEventHandler.h"
00006 
00007 namespace kbd_mgr {
00008 
00009 /**
00010  * @brief A base class for monitors that report keypresses.
00011  */ 
00012 class KeyPressEventServer : public KeyboardEventServer<KeyPressEventHandler> {
00013 public:
00014     /**
00015      * @brief Attaches the monitor to a function.
00016      * @param fn       Event handler called to report keyboard state change.
00017      */
00018     void attach(FunctionKeyPressEventHandler::HandlerFunction fn) {
00019         setHandler(new FunctionKeyPressEventHandler(fn));
00020     }
00021     
00022     /**
00023      * @brief Attaches the monitor to a method of an object.
00024      * @param obj      Event handler object
00025      * @param fn       Event handler method called to report keyboard state after each complete scan.
00026      */
00027     template <class T>
00028     void attach(T *obj, typename MemberKeyPressEventHandler<T>::MemberFunction fn) {
00029         setHandler(new MemberKeyPressEventHandler<T>(obj, fn));
00030     }
00031     
00032     using KeyboardEventServer<KeyPressEventHandler>::attach;
00033     
00034     void invokeHandler(const KeyEvent &keypress) {
00035         if (this->hasHandler()) {
00036             this->handler()->handleKeyPress(keypress);
00037         }
00038     }
00039 };
00040 
00041 } // kbd_mgr
00042 
00043 #endif // KEYPRESS_EVENT_SERVER_H_