Olivier Smeesters / Mbed 2 deprecated DtmfKit

A DTMF sequence editor and player for HAM radio equipment command & control.

Dependencies:   mbed ExtTextLCD

KeyboardManager/kbd_mgr/KeyPressEventHandler.h@0:1324e7d9d471, 2011-03-07 (annotated)

Committer:
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Date:
Mon Mar 07 22:51:19 2011 +0000
Revision:
0:1324e7d9d471

        

        
Who changed what in which revision?

        

            
                
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#ifndef KEY_PRESS_EVENT_HANDLER_H_





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#define KEY_PRESS_EVENT_HANDLER_H_





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namespace kbd_mgr {





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struct KeyEvent {





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    enum KeyId {





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        NoKey = -1





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    };





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    enum EventType {





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        NoEvent, KeyDown, KeyPress, RepeatedKeyPress, LongKeyPress, KeyUp





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    };





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    int keyCode;





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    char keyChar;





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    EventType event;





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    KeyEvent() : keyCode(NoKey), keyChar(0), event(NoEvent) { }





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    /**





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     * @brief Creates a raw key event (no char).





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     */





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    KeyEvent(int key, EventType event) : keyCode(key), keyChar(0), event(event) { }    





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    /**





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     * @brief Converts a raw key event into a mapped key.





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     */





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    KeyEvent(const KeyEvent &raw, char ch) : keyCode(raw.keyCode), keyChar(ch), event(raw.event) { }    





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    /**





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     * @brief Creates a key event with a different event code.





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     */





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    KeyEvent(const KeyEvent &other, EventType event) : keyCode(other.keyCode), keyChar(other.keyChar), event(event) { }    





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};





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/**





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 * @brief Interface used to report key presses and releases.





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 */





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class KeyPressEventHandler {





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public:





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    virtual void handleKeyPress(const KeyEvent &keypress) = 0;





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    virtual ~KeyPressEventHandler() { }





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};





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template <class T>





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class MemberKeyPressEventHandler : public KeyPressEventHandler {





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public:





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    typedef void (T::*MemberFunction)(const KeyEvent &keypress);





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    MemberKeyPressEventHandler(T *obj, MemberFunction fn) :





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        object(obj), func(fn)





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    { }





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    virtual void handleKeyPress(const KeyEvent &keypress) {





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        (object->*func)(keypress);





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    }





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private:





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    T *object;





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    MemberFunction func;





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};





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class FunctionKeyPressEventHandler : public KeyPressEventHandler {





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public:





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    typedef void (*HandlerFunction)(const KeyEvent &keypress);





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    FunctionKeyPressEventHandler(HandlerFunction fn) :





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        func(fn)





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    { }





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    virtual void handleKeyPress(const KeyEvent &keypress) {





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        func(keypress);





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    }





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private:





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    HandlerFunction func;





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};





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} // kbd_mgr





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#endif // KEY_PRESS_EVENT_HANDLER_H_