#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
@@ -132,6 +133,12 @@ void GrayMapManager::saveGrayMap(int slotNumber)
 /*************************************************************************************************/
 void GrayMapManager::grayMapHandle()
 {
+    qDebug() << "reciving signals";
+    if(grayMap() == -1) {
+        // "-1" means that nothing is Selected and user is
+        // changing grayMap.
+    }
+    else {
         if(isCustomGrayMapSelected())
         {
             initUserGrayMaps(false);
@@ -139,6 +146,8 @@ void GrayMapManager::grayMapHandle()
         auto gm = getGrayMap(grayMap());
         currentGrayMapData(u8ListToIntList(gm->value()));
         setKnobs(gm);
+    }
+
 }
 
 /*************************************************************************************************/