add M117 to add an arbitrary LCD message

[clinton/Smoothieware.git] / src / modules / utils / panel / Button.h

#ifndef BUTTON_H
#define BUTTON_H

#include <stdlib.h>
#include "libs/LPC17xx/sLPC17xx.h" // smoothed mbed.h lib
#include "libs/Kernel.h"
#include "libs/utils.h"
#include "libs/Pin.h"
#include <string>
#include "libs/Hook.h"


class Button{
    public: 
        Button(){
            this->counter = 0;
            this->value = false;
            this->up_hook = NULL;
            this->down_hook = NULL;
            this->button_pin = NULL;
        }

        Button* pin(Pin* passed_pin){
            this->button_pin = passed_pin;
            return this;
        }

        void check_signal(){
            check_signal(this->button_pin->get()?1:0);
        }

        void check_signal(int val){
            bool start_value = this->value;
            if( val ){
                if( this->counter < 5  ){ this->counter++; }
                if( this->counter == 5 ){ 
                    this->value = true; 
                }
            }else{
                if( this->counter > 0  ){ this->counter--; }
                if( this->counter == 0 ){ 
                    this->value = false; 
                }
            }

            if( start_value != this->value ){
                if( this->value ){
                    if( this->up_hook != NULL ){
                        this->up_hook->call();
                    } 
                }else{
                    if( this->down_hook != NULL ){
                        this->down_hook->call();
                    } 
                }
            }

        }

        bool get(){
            return this->value;
        }


        template<typename T> Button* up_attach( T *optr, uint32_t ( T::*fptr )( uint32_t ) ){
            this->up_hook = new Hook(); 
            this->up_hook->attach(optr, fptr);
            return this;
        }

        template<typename T> Button* down_attach( T *optr, uint32_t ( T::*fptr )( uint32_t ) ){
            this->down_hook = new Hook(); 
            this->down_hook->attach(optr, fptr);
            return this;
        }

    private:
        Hook* up_hook;
        Hook* down_hook;
        bool value;
        char counter;
        Pin* button_pin;

};





#endif