Add watchface with weekday

* Allow overriding of date string in clock.py
* Override it to display the weekday in week_clock.py

Signed-off-by: Francesco Gazzetta <fgaz@fgaz.me>

README.rst

@@ -246,6 +246,10 @@ application (and the "blank" white screen is a torch application):
    :alt: Weather application running in the wasp-os simulator
    :width: 179
 
+.. image:: res/WeekClkApp.png
+   :alt: Digital clock application, including the week day
+   :width: 179
+
 .. image:: res/WordClkApp.png
    :alt: Shows a time as words in the wasp-os simulator
    :width: 179

docs/apps.rst

@@ -19,6 +19,8 @@ Watch faces
 
 .. automodule:: apps.fibonacci_clock
 
+.. automodule:: apps.week_clock
+
 .. automodule:: apps.word_clock
 
 Built-in

wasp/apps/clock.py

@@ -62,6 +62,14 @@ class ClockApp():
         wasp.system.bar.clock = False
         self._draw(True)
 
+    def _day_string(self, now):
+        """Produce a string representing the current day"""
+        # Format the month as text
+        month = now[1] - 1
+        month = MONTH[month*3:(month+1)*3]
+
+        return '{} {} {}'.format(now[2], month, now[0])
+
     def _draw(self, redraw=False):
         """Draw or lazily update the display.
 
@@ -93,18 +101,13 @@ class ClockApp():
                 # Skip the update
                 return
 
-        # Format the month as text
-        month = now[1] - 1
-        month = MONTH[month*3:(month+1)*3]
-
         # Draw the changeable parts of the watch face
         draw.blit(DIGITS[now[4]  % 10], 4*48, 80, fg=hi)
         draw.blit(DIGITS[now[4] // 10], 3*48, 80, fg=lo)
         draw.blit(DIGITS[now[3]  % 10], 1*48, 80, fg=hi)
         draw.blit(DIGITS[now[3] // 10], 0*48, 80, fg=lo)
         draw.set_color(hi)
-        draw.string('{} {} {}'.format(now[2], month, now[0]),
-                0, 180, width=240)
+        draw.string(self._day_string(now), 0, 180, width=240)
 
         # Record the minute that is currently being displayed
         self._min = now[4]

wasp/apps/faces.py

@@ -24,6 +24,7 @@ class FacesApp():
         """Activate the application."""
         choices = []
         choices.append(('clock', 'Clock'))
+        choices.append(('week_clock', 'WeekClock'))
         choices.append(('chrono', 'Chrono'))
         choices.append(('dual_clock', 'DualClock'))
         choices.append(('fibonacci_clock', 'FibonacciClock'))

wasp/apps/week_clock.py

@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: LGPL-3.0-or-later
+# Copyright (C) 2022 Francesco Gazzetta
+
+"""Digital clock with weekday
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Shows a time (as HH:MM) together with a battery meter, the date, and the weekday.
+
+.. figure:: res/WeekClkApp.png
+    :width: 179
+"""
+
+from apps.clock import ClockApp, MONTH
+
+WDAY = 'MonTueWedThuFriSatSun'
+
+class WeekClockApp(ClockApp):
+    NAME = 'WeekClk'
+
+    def _day_string(self, now):
+        """Produce a string representing the current day"""
+        # Format the month as text
+        month = now[1] - 1
+        month = MONTH[month*3:(month+1)*3]
+
+        # Format the weekday as text
+        wday = now[6]
+        wday = WDAY[wday*3:(wday+1)*3]
+
+        return '{} {} {} {}'.format(wday, now[2], month, now[0])

wasp/boards/manifest_240x240.py

@@ -28,6 +28,7 @@ manifest = (
     'apps/testapp.py',
     'apps/timer.py',
     'apps/weather.py',
+    'apps/week_clock.py',
     'apps/word_clock.py',
     'fonts/__init__.py',
     'fonts/clock.py',