PicoLCButton.cpp

#include "PicoLCClass.h"

PicoLCButton::PicoLCButton(PicoLC& plc) : _plc(plc) {
}

void PicoLCButton::update(uint32_t currentMillis, uint8_t value) {
 _lastValue = _currentValue;
 _currentValue = value ? true : false;
 if( _inverted ) {
 _currentValue = !_currentValue;
 }
 if( _filterMillis == 0 ) {
 return;
 }
 if( _filterStart > 0 ) {
 if( _currentValue != _candidateValue) {
 _currentValue = _lastValue;
 _filterStart = currentMillis;
 return;
 }
 if( currentMillis - _filterStart >= _filterMillis ) {
 _filterStart = 0;
 } else {
 _currentValue = _lastValue;
 }
 } else {
 if( _currentValue != _lastValue ) {
 _filterStart = currentMillis;
 _candidateValue = _currentValue;
 _currentValue = _lastValue;
 }
 }
}

void PicoLCButton::inverted(bool invert) {
 _inverted = invert;
}

void PicoLCButton::filterMillis(uint32_t ms) {
 _filterMillis = ms;
}

uint32_t PicoLCButton::filterMillis() const {
 return _filterMillis;
}

bool PicoLCButton::read() const {
 return _currentValue;
}

bool PicoLCButton::rising() const {
 if( _plc.cycles() == 0 ) {
 return false;
 }
 return (_currentValue == true && _lastValue == false);
}

bool PicoLCButton::falling() const {
 if( _plc.cycles() == 0 ) {
 return false;
 }
 return (_currentValue == false && _lastValue == true);
}

bool PicoLCButton::changed() const {
 return (_currentValue != _lastValue);
}