Console does not block focus forever

* focus handling improved - when clicking on graph focus is released.

prasopes/graphtools.py

@@ -160,6 +160,10 @@ def zoom_factory(axis, base_scale, plot_data=None):
 def pan_factory(axis, plot=None):
     """pan spectrum when you press a button"""
     def pan_fun(event, ax, pd):
+        #remove focus from other objects when clicking on graph
+        focusedWidget = QtWidgets.QApplication.focusWidget()
+        if focusedWidget != None and event.inaxes == ax:
+            focusedWidget.clearFocus()
         # re-scale to origin if doubleclicked
         if event.dblclick and event.inaxes == ax:
             ax.get_figure()