fix xca indicator to calculate all bars if necessary ...

Indicators/x-saherelm.x121.xca.mq5

@@ -529,6 +529,9 @@ double resBuffer[];
 // this counts Available Bars ...
 int limit;
 
+//
+int firstBarIndex;
+
 //
 int maxLength;
 
@@ -1404,10 +1407,16 @@ void CalculateBuffers(
     int barsLimit = startCalculationForLastBars > 0
                         ? startCalculationForLastBars
                         : 0;
+    if (barsLimit == 0)
+    {
+        //
+        barsLimit = ratesTotal;
+        firstBarIndex = barsLimit - 1;
+    }
+
     //
     // bool canCalculate = true;
     bool canCalculate =
-        barsLimit == 0 ||
         bar_index <= barsLimit;
     if (canCalculate)
     {
@@ -1778,7 +1787,7 @@ void CalculateValues(
     bool isFirstBar =
         startCalculationForLastBars > 0
             ? bar_index == startCalculationForLastBars
-            : bar_index == ratesTotal;
+            : bar_index == firstBarIndex;
 
     XOHCL iBar;
     bool isInited = iBar.Init(
@@ -2167,6 +2176,13 @@ bool IsSwingLow(
     //
     bool result = false;
 
+    //
+    result = index + 1 + length <= firstBarIndex;
+    if (!result)
+    {
+        return result;
+    }
+
     //
     for (int i = index + 1; i <= index + length; i++)
     {
@@ -2193,6 +2209,13 @@ bool IsSwingHigh(
     //
     bool result = false;
 
+    //
+    result = index + 1 + length <= firstBarIndex;
+    if (!result)
+    {
+        return result;
+    }
+
     //
     for (int i = index + 1; i <= index + length; i++)
     {