wasp: Add simple clock app

At this point both the simulator and a PineTime will come up
and show a clock (although in the case of the PineTime the clock
will just come up at 12:00).

1 files changed, 43 insertions, 0 deletions

diff --git a/wasp/clock.py b/wasp/clock.py
new file mode 100644
index 0000000..95ea7da
--- /dev/null
+++ b/wasp/clock.py
@@ -0,0 +1,43 @@
+import fonts
+
+DIGITS = (
+        fonts.clock_0,
+        fonts.clock_1,
+        fonts.clock_2,
+        fonts.clock_3,
+        fonts.clock_4,
+        fonts.clock_5,
+        fonts.clock_6,
+        fonts.clock_7,
+        fonts.clock_8,
+        fonts.clock_9
+)
+
+class ClockApp(object):
+
+    def __init__(self):
+        self.on_screen = ( -1, -1 )
+
+    def draw(self, watch):
+        display = watch.display
+
+        display.fill(0)
+        display.rleblit(fonts.clock_colon, pos=(2*48, 80), fg=0xb5b6)
+        self.update(watch)
+
+    def update(self, watch):
+        now = watch.rtc.get_time()
+        if now[0] == self.on_screen[0] and now[1] == self.on_screen[1]:
+            # Avoid the redraw
+            return False
+
+        display = watch.display
+        display.rleblit(DIGITS[now[1]  % 10], pos=(4*48, 80))
+        display.rleblit(DIGITS[now[1] // 10], pos=(3*48, 80), fg=0xc638)
+        display.rleblit(DIGITS[now[0]  % 10], pos=(1*48, 80))
+        display.rleblit(DIGITS[now[0] // 10], pos=(0*48, 80), fg=0xc638)
+        self.on_screen = now
+
+        return True
+
+