Abort rapid giude if guide star is lost

kstars/ekos/guide.cpp

@@ -361,7 +361,13 @@ void Guide::viewerClosed()
 
 void Guide::processRapidStarData(ISD::CCDChip *targetChip, double dx, double dy, double fit)
 {
-    INDI_UNUSED(fit);
+    // Check if guide star is lost
+    if (dx == -1 && dy == -1 && fit == -1)
+    {
+        KMessageBox::error(NULL, i18n("Lost track of the guide star. Rapid guide aborted."));
+        guider->abort();
+        return;
+    }
 
     FITSView *targetImage = targetChip->getImage(FITS_GUIDE);
 

kstars/indi/indiccd.cpp

@@ -607,39 +607,56 @@ void CCD::processNumber(INumberVectorProperty *nvp)
     {
         double dx=-1,dy=-1,fit=-1;
         INumber *np=NULL;
-        np = IUFindNumber(nvp, "GUIDESTAR_X");
-        if (np)
-            dx = np->value;
-        np = IUFindNumber(nvp, "GUIDESTAR_Y");
-        if (np)
-            dy = np->value;
-        np = IUFindNumber(nvp, "GUIDESTAR_FIT");
-        if (np)
-            fit = np->value;
 
-        if (dx >= 0 && dy >= 0 && fit >= 0)
-            emit newGuideStarData(primaryChip, dx, dy, fit);
+        if (nvp->s == IPS_ALERT)
+        {
+            emit newGuideStarData(primaryChip, -1, -1, -1);
+        }
+        else
+        {
+            np = IUFindNumber(nvp, "GUIDESTAR_X");
+            if (np)
+                dx = np->value;
+            np = IUFindNumber(nvp, "GUIDESTAR_Y");
+            if (np)
+                dy = np->value;
+            np = IUFindNumber(nvp, "GUIDESTAR_FIT");
+            if (np)
+                fit = np->value;
+
+            if (dx >= 0 && dy >= 0 && fit >= 0)
+                emit newGuideStarData(primaryChip, dx, dy, fit);
+        }
+
     }
 
     if (!strcmp(nvp->name, "GUIDER_RAPID_GUIDE_DATA"))
     {
         double dx=-1,dy=-1,fit=-1;
         INumber *np=NULL;
-        np = IUFindNumber(nvp, "GUIDESTAR_X");
-        if (np)
-            dx = np->value;
-        np = IUFindNumber(nvp, "GUIDESTAR_Y");
-        if (np)
-            dy = np->value;
-        np = IUFindNumber(nvp, "GUIDESTAR_FIT");
-        if (np)
-            fit = np->value;
 
-        if (dx >= 0 && dy >= 0 && fit >= 0)
-            emit newGuideStarData(guideChip, dx, dy, fit);
-    }
+        if (nvp->s == IPS_ALERT)
+        {
+            emit newGuideStarData(guideChip, -1, -1, -1);
+
+        }
+        else
+        {
+            np = IUFindNumber(nvp, "GUIDESTAR_X");
+            if (np)
+                dx = np->value;
+            np = IUFindNumber(nvp, "GUIDESTAR_Y");
+            if (np)
+                dy = np->value;
+            np = IUFindNumber(nvp, "GUIDESTAR_FIT");
+            if (np)
+                fit = np->value;
 
+            if (dx >= 0 && dy >= 0 && fit >= 0)
+                emit newGuideStarData(guideChip, dx, dy, fit);
+        }
 
+    }
 
     DeviceDecorator::processNumber(nvp);
 }