Add Support for atr in x121 indicator ...

Libraries/x-saherelm.common.lib.mq5

@@ -13390,6 +13390,15 @@ ENUM_X_DIRECTION Opposit(ENUM_X_DIRECTION value)
 //
 // Moving Average ...
 
+enum ENUM_X_MA_METHOD
+{
+    X_MA_MODE_NONE, // None
+    X_MA_MODE_SMA,  // SMA
+    X_MA_MODE_EMA,  // EMA
+    X_MA_MODE_LWMA, // LWMA
+    X_MA_MODE_SMMA, // SMMA
+};
+
 /**
  * Calculate Sspecified Buffer's Moving Averages ...
  *
@@ -13397,7 +13406,7 @@ ENUM_X_DIRECTION Opposit(ENUM_X_DIRECTION value)
  * @param  prev_calculated: Integer, Previous Calculate Items ...
  * @param  begin: Integer, Bar Index ...
  * @param  period: Integer, Moving Average Length ...
- * @param  price: Double Array, Specified Array for Calculating Moving Averages ...
+ * @param  source: Double Array, Specified Array for Calculating Moving Averages ...
  * @param  buffer: Double Array, Specified Array to Apply Calculated Moving Average on it ...
  * @param  method: ENUM_MA_METHOD member Specified Moving Average Calculation Method ...
  *
@@ -13408,9 +13417,9 @@ int iMAOnBuffer(
     const int _prev_calculated,
     const int _begin,
     const int _period,
-    const double &_price[],
+    const double &_source[],
     double &_buffer[],
-    ENUM_MA_METHOD _method = MODE_SMA //
+    ENUM_X_MA_METHOD _method = X_MA_MODE_SMA //
 )
 {
     //
@@ -13421,6 +13430,7 @@ int iMAOnBuffer(
         _period < 0 ||
         _rates_total <= 0 ||
         _prev_calculated < 0 ||
+        _method == X_MA_MODE_NONE ||
         _prev_calculated > _rates_total)
     {
         return result;
@@ -13430,49 +13440,49 @@ int iMAOnBuffer(
     switch (_method)
     {
     //
-    case MODE_SMA:
+    case X_MA_MODE_SMA:
         result = SimpleMAOnBuffer(
             _rates_total,
             _prev_calculated,
             _begin,
             _period,
-            _price,
+            _source,
             _buffer //
         );
         break;
 
     //
-    case MODE_EMA:
+    case X_MA_MODE_EMA:
         result = ExponentialMAOnBuffer(
             _rates_total,
             _prev_calculated,
             _begin,
             _period,
-            _price,
+            _source,
             _buffer //
         );
         break;
 
     //
-    case MODE_LWMA:
+    case X_MA_MODE_LWMA:
         result = LinearWeightedMAOnBuffer(
             _rates_total,
             _prev_calculated,
             _begin,
             _period,
-            _price,
+            _source,
             _buffer //
         );
         break;
 
     //
-    case MODE_SMMA:
+    case X_MA_MODE_SMMA:
         result = SmoothedMAOnBuffer(
             _rates_total,
             _prev_calculated,
             _begin,
             _period,
-            _price,
+            _source,
             _buffer //
         );
         break;