#3 tastk

don't forget to manage -1 from UI.

logic/src/viewModel/bMode/display/gray/GrayMapManager.cpp

@@ -1,6 +1,7 @@
 #include "viewModel/bMode/display/gray/GrayMapManager.h"
 
 #include <QRandomGenerator>
+#include <QDebug>
 
 #define GRAY_MAP_COUNT 18
 #define USER_GRAY_MAP_COUNT 3
@@ -132,13 +133,21 @@ void GrayMapManager::saveGrayMap(int slotNumber)
 /*************************************************************************************************/
 void GrayMapManager::grayMapHandle()
 {
-    if(isCustomGrayMapSelected())
-    {
-        initUserGrayMaps(false);
+    qDebug() << "reciving signals";
+    if(grayMap() == -1) {
+        // "-1" means that nothing is Selected and user is
+        // changing grayMap.
     }
-    auto gm = getGrayMap(grayMap());
-    currentGrayMapData(u8ListToIntList(gm->value()));
-    setKnobs(gm);
+    else {
+        if(isCustomGrayMapSelected())
+        {
+            initUserGrayMaps(false);
+        }
+        auto gm = getGrayMap(grayMap());
+        currentGrayMapData(u8ListToIntList(gm->value()));
+        setKnobs(gm);
+    }
+
 }
 
 /*************************************************************************************************/