debug menu toggle

SoundslabDisplay.py

@@ -34,6 +34,8 @@ class SoundslabDisplay:
         self.previous_voltage = 0.0
         # track currently playing song's art path to eliminate unnecessary reloads of the same image file
         self.current_art_path = None
+        # start with menus hidden
+        self.show_menu = False
 
     def _displayOff(self):
         self.st7789.set_backlight(0) # turn off the backlight
@@ -72,7 +74,7 @@ class SoundslabDisplay:
         # always start with a transparent menu overlay image
         im_menu_overlay = Image.new("RGBA", self.screen_size, (0, 0, 0, 0))
         menu_overlay = ImageDraw.Draw(im_menu_overlay)
-        if self.showMenu and menu_data is not None:
+        if self.show_menu and menu_data is not None:
             # we have a menu to display
             #
             # menu_data is structured as a list of dicts describing the rows to be displayed:

SoundslabInput.py

@@ -27,9 +27,6 @@ GPIO.setmode(GPIO.BCM)
 # with a "PULL UP", which weakly pulls the input signal to 3.3V.
 GPIO.setup(BUTTONS, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 
-# a temporary place to store menu state
-show_menu = False
-
 # some button handlers
 def NE():
     # play/pause toggle
@@ -60,12 +57,12 @@ def SW():
 
 def NW():
     # open menu
-    global show_menu
+    global display
     print("toggling menu")
-    if show_menu is True:
-        show_menu = False
+    if display.show_menu is True:
+        display.show_menu = False
     else:
-        show_menu = True
+        display.show_menu = True
 
 def SE():
     # next track
@@ -135,7 +132,7 @@ for pin in BUTTONS:
     GPIO.add_event_detect(pin, GPIO.FALLING, handle_button, bouncetime=100)
 
 while True:
-    if show_menu is True:
+    if display.show_menu is True:
         # test menu
         display.updateMenu(
             [