astrodatagui: FlaredetectorWidget: add plot fits file function

main/astrodatagui/ui/FlaredetectorWidget.py

@@ -3,6 +3,7 @@ from matplotlib.figure import Figure
 from matplotlib.backends.backend_qtagg import (
      FigureCanvas, NavigationToolbar2QT as NavigationToolbar)
 
+from astropy.io import fits
 
 class FlaredetectorWidget(QtWidgets.QWidget):
     def __init__(self, name):
@@ -16,4 +17,13 @@ class FlaredetectorWidget(QtWidgets.QWidget):
         fc = FigureCanvas(self.figure)
         toolbar = NavigationToolbar(fc, self)
         self.mainLayout.addWidget(toolbar)
-        self.mainLayout.addWidget(fc)
+        self.mainLayout.addWidget(fc)
+
+    def plotFitsFile(self, fitsFilePath):
+        print(f"Plotting: {fitsFilePath}")
+        self.figureAxis.clear()
+        hdu = fits.open(fitsFilePath, mode="readonly")
+        time = hdu[1].data["TIME"]
+        data = hdu[1].data["SAP_FLUX"]
+        self.figureAxis.plot(time, data)
+        self.figure.canvas.draw_idle()