py: harmonic/melodic: draw scope

python_payload/apps/harmonic_demo.py

@@ -44,6 +44,10 @@ class HarmonicApp(Application):
         i = self.color_intensity
         ctx.rgb(i, i, i).rectangle(-120, -120, 240, 240).fill()
 
+        ctx.rgb(0, 0, 0)
+        scope_draw(ctx)
+        ctx.fill()
+
     def main_foreground(self):
         if self.color_intensity > 0:
             self.color_intensity -= self.color_intensity / 20

python_payload/apps/melodic_demo.py

@@ -81,6 +81,12 @@ class MelodicApp(Application):
     def on_init(self):
         init()
 
+    def on_draw(self, ctx):
+        ctx.rgb(1, 1, 1).rectangle(-120, -120, 240, 240).fill()
+        ctx.rgb(0, 0, 0)
+        scope_draw(ctx)
+        ctx.fill()
+
     def on_foreground(self):
         foreground()