/**
 *
 *  analog.h
 *  Jan Dvorak z Vozerovic - dvorkaman@centrum.cz - dvorkaman.php5.cz
 */   
#ifndef analog_h
#define analog_h
     
#include "WProgram.h"
 
/**************************************
/**
 * Implicit values
 */
#define ANALOG_MINIMAL_CHANGE 1  //converted 
#define ANALOG_BLIND_SPOT_SIZE 0   //real situation value
#define ANALOG_MIN_POSITION 0      //real situation value 
#define ANALOG_MAX_POSITION 1023   //real situation value
#define ANALOG_MIDDLE_POSITION 511 //real situation value
#define ANALOG_VALUE_RANGE 1023    //converted

/**************************************
/**
 * Declaration of class myServo
 */
class Analog
{
    public:
        
        Analog(int inputPin);
        Analog(int inputPin, int minimalChange);
        Analog(int inputPin, int minimalChange, int blindSpotSize);
        Analog(int inputPin, int minimalChange, int blindSpotSize, int minPosition, int maxPosition);
        Analog(int inputPin, int minimalChange, int blindSpotSize, int minPosition, int maxPosition, int middlePosition, int outputValueRange);
        
        int getPosition();      // <0, valueRange>
        boolean positionChanged();   // if changed from last call of value()
        
    private:
        int _inputPin;
                  
        int _valueRange;    //range into which position of trimmer is tranformed (if in "middle position", returns valueRange/2 ) 
        
        int _middlePosition; //value of position when trimmer is in the middle
        int _minPosition;      //minimal possible position obtained from input
        int _maxPosition;   //maximal possible position obtained from input
        int _blindSpotSize;    //area around middle position, when output value does not change
        
        int _minimalChange;    //get change when position changes of...
        int _lastSentValue;
        int _actualValue;     
        int _previousInputValue; //not converted
        
        void configurate(int inputPin, int minimalChange, int blindSpotSize, int minPosition, int maxPosition, int middlePosition, int outputValueRange);
        void checkAndCalculatePosition();                              
};

#endif