Merge 'Add option to use right buttons for scrolling'

Add an option to use the top right and bottom right buttons to move
in the menu.  The option would ideally be added to the card10.cfg.

Related: #178

See merge request card10/firmware!330

pycardium/modules/py/simple_menu.py

@@ -120,6 +120,12 @@ class Menu:
     .. versionadded:: 1.9
     """
 
+    right_buttons_scroll = False
+    """
+    Use top right and bottom right buttons to move in the list
+    instead of bottom left and bottom right buttons.
+    """
+
     def on_scroll(self, item, index):
         """
         Hook when the selector scrolls to a new item.
@@ -173,6 +179,12 @@ class Menu:
         self.idx = 0
         self.select_time = utime.time_ms()
         self.disp = display.open()
+        self.button_scroll_up = (
+            buttons.TOP_RIGHT if self.right_buttons_scroll else buttons.BOTTOM_LEFT
+        )
+        self.button_select = (
+            buttons.BOTTOM_LEFT if self.right_buttons_scroll else buttons.TOP_RIGHT
+        )
 
     def entry2name(self, value):
         """
@@ -290,7 +302,7 @@ class Menu:
                     except Exception as e:
                         print("Exception during menu.on_scroll():")
                         sys.print_exception(e)
-                elif ev == buttons.BOTTOM_LEFT:
+                elif ev == self.button_scroll_up:
                     self.select_time = utime.time_ms()
                     self.draw_menu(8)
                     self.idx = (self.idx + len(self.entries) - 1) % len(self.entries)
@@ -301,7 +313,7 @@ class Menu:
                     except Exception as e:
                         print("Exception during menu.on_scroll():")
                         sys.print_exception(e)
-                elif ev == buttons.TOP_RIGHT:
+                elif ev == self.button_select:
                     try:
                         self.on_select(self.entries[self.idx], self.idx)
                         self.select_time = utime.time_ms()