fixing bug #222 - Appending a radio station with A in a playlist leads to a crash (when number stations is less than window height)

Author: s-n-g

pyradio/radio.py

@@ -8006,6 +8006,8 @@ def keypress(self, char):
                         self._cnf.number_of_stations = self.number_of_items
                         self.selection = self.number_of_items - 1
                         self.startPos = self.number_of_items - self.bodyMaxY
+                        if self.startPos < 0:
+                            self.startPos = 0
                     else:
                         if self.number_of_items == 0:
                             self._cnf.stations = [self._station_editor.new_station]
@@ -10452,6 +10454,8 @@ def _redisplay_stations_and_playlists(self):
                 self.bodyWin.erase()
         else:
             for lineNum in range(self.bodyMaxY):
+                if self.startPos < 0:
+                    self.startPos = 0
                 i = lineNum + self.startPos
                 if i < len(self.stations):
                     if not self._cnf.browsing_station_service and \