Props to prop no plural

src/PropData.cpp

@@ -0,0 +1,136 @@
+/*
+  Name:		PropData.cpp
+  Created: 29/10/2019 09:20:31
+  Author:  Marie Faure <dev at faure dot systems>
+  Editor:  https://github.com/fauresystems
+  License: MIT License (c) Marie Faure <dev at faure dot systems>
+
+  Variable wrapper for connected prop.
+*/
+
+#include "PropData.h"
+#include <String.h>
+
+// ---- Decimal
+PropDataDecimal::PropDataDecimal(const char * id, uint8_t digits, double precision, double initial) {
+  _id = id;
+  _current = initial;
+  _previous = _current;
+  _precision = precision;
+  _digits = digits;
+}
+
+String PropDataDecimal::fetch() {
+  _previous = _current;
+  return String(_id) + "=" + String(_current, _digits) + " ";
+}
+
+String PropDataDecimal::fetchChange() {
+  if (_current != _previous && _current && abs(_current - _previous) / _current >= _precision) {
+    return fetch();
+  }
+  else if (_current != _previous && !_current && abs(_current - _previous) >= _precision) {
+    return fetch();
+  }
+  return String();
+}
+
+void PropDataDecimal::setValue(const double v) {
+  _current = v;
+}
+
+double PropDataDecimal::value() const {
+  return _current;
+}
+
+// ---- Integer
+PropDataInteger::PropDataInteger(const char * id, double precision, long initial) {
+  _id = id;
+  _current = initial;
+  _previous = _current;
+  _precision = precision;
+}
+
+String PropDataInteger::fetch() {
+  _previous = _current;
+  return String(_id) + "=" + String(_current) + " ";
+}
+
+String PropDataInteger::fetchChange() {
+  if (_current != _previous && _current && abs(_current - _previous) / _current >= _precision) {
+    return fetch();
+  }
+  else if (_current != _previous && !_current && abs(_current - _previous) >= _precision) {
+    return fetch();
+  }
+  return String();
+}
+
+void PropDataInteger::setValue(const long v) {
+  _current = v;
+}
+
+long PropDataInteger::value() const {
+  return _current;
+}
+
+// ---- Logical
+PropDataLogical::PropDataLogical(const char * id, const char *trueval, const char *falseval, bool initial) {
+  _id = id;
+  _current = initial;
+  _previous = _current;
+  _trueString = trueval;
+  _falseString = falseval;
+}
+
+String PropDataLogical::fetch() {
+  String str(String(_id) + "=");
+  if (_current) {
+    str += _trueString ? _trueString : "1";
+  } else {
+    str += _falseString ? _falseString : "0";
+  }
+  str += " ";
+  _previous = _current;
+  return str;
+}
+
+String PropDataLogical::fetchChange() {
+  if (_current != _previous) {
+    return fetch();
+  }
+  return String();
+}
+
+void PropDataLogical::setValue(const bool v) {
+  _current = v;
+}
+
+bool PropDataLogical::value() const {
+  return _current;
+}
+
+// ---- Text
+PropDataText::PropDataText(const char * id) {
+  _id = id;
+}
+
+String PropDataText::fetch() {
+  _previous = _current;
+  return String(_id) + "=" + _current + " ";
+}
+
+String PropDataText::fetchChange() {
+  if (_current != _previous) {
+    return fetch();
+  }
+  return String();
+}
+
+void PropDataText::setValue(String v) {
+  _current = v;
+}
+
+String PropDataText::value() const {
+  return _current;
+}