Get pixel size info from CCD chip. Add warnings for DSLRs in case CCD info is incomplete

kstars/ekos/capture/capture.cpp

@@ -612,6 +612,13 @@ void Capture::checkCCD(int ccdNum)
                 appendLogText(i18n("Using FITS transfer format from DSLR camera. Configure DSLR transfer format in options."));
             else
                 appendLogText(i18n("Using native transfer format from DSLR camera. Configure DSLR transfer format in options."));
+
+            double pixelX=0, pixelY=0;
+            bool rc = targetChip->getPixelSize(pixelX, pixelY);
+            if (rc == false || pixelX == 0 || pixelY == 0)
+            {
+                appendLogText(i18n("DSLR CCD Information is incomplete. Please update CCD Information in Image Info section in the INDI Control Panel."));
+            }
         }
 
         liveVideoB->setEnabled(currentCCD->hasVideoStream());
@@ -1480,7 +1487,7 @@ void Capture::setExposureProgress(ISD::CCDChip * tChip, double value, IPState st
 
         activeJob->setCaptureRetires(retries);
 
-        appendLogText(i18n("Capture failed."));
+        appendLogText(i18n("Capture failed. Check INDI Control Panel for details."));
 
         if (retries == 3)
         {

kstars/indi/indiccd.cpp

@@ -187,6 +187,37 @@ bool CCDChip::getFrameMinMax(int *minX, int *maxX, int *minY, int *maxY, int *mi
 
 }
 
+bool CCDChip::getPixelSize(double & x, double & y)
+{
+    INumberVectorProperty *ccdInfoProp = NULL;
+
+    switch (type)
+    {
+    case PRIMARY_CCD:
+        ccdInfoProp = baseDevice->getNumber("CCD_INFO");
+        break;
+
+    case GUIDE_CCD:
+        ccdInfoProp = baseDevice->getNumber("GUIDER_INFO");
+        break;
+
+    }
+
+    if (ccdInfoProp == NULL)
+        return false;
+
+    INumber *pixelX = IUFindNumber(ccdInfoProp, "CCD_PIXEL_SIZE_X");
+    INumber *pixelY = IUFindNumber(ccdInfoProp, "CCD_PIXEL_SIZE_Y");
+
+    if (pixelX == NULL || pixelY == NULL)
+        return false;
+
+    x = pixelX->value;
+    y = pixelY->value;
+
+    return true;
+}
+
 bool CCDChip::getFrame(int *x, int *y, int *w, int *h)
 {
 

kstars/indi/indiccd.h

@@ -57,6 +57,10 @@ public:
     bool getFrame(int *x, int *y, int *w, int *h);
     bool getFrameMinMax(int *minX, int *maxX, int *minY, int *maxY, int *minW, int *maxW, int *minH, int *maxH);
     bool setFrame(int x, int y, int w, int h);
+
+    // Pixel size
+    bool getPixelSize(double &x, double &y);
+
     //bool getFocusFrame(int *x, int *y, int *w, int *h);
     //bool setFocusFrame(int x, int y, int w, int h);
     bool resetFrame();