96 lines
2.6 KiB
Python
96 lines
2.6 KiB
Python
# SPDX-License-Identifier: LGPL-3.0-or-later
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# Copyright (C) 2020 Daniel Thompson
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import wasp
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import fonts.clock as digits
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DIGITS = (
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digits.clock_0,
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digits.clock_1,
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digits.clock_2,
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digits.clock_3,
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digits.clock_4,
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digits.clock_5,
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digits.clock_6,
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digits.clock_7,
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digits.clock_8,
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digits.clock_9
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)
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MONTH = 'JanFebMarAprMayJunJulAugSepOctNovDec'
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class ClockApp():
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"""Simple digital clock application.
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Shows a time (as HH:MM) together with a battery meter and the date.
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"""
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def __init__(self):
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self.meter = wasp.widgets.BatteryMeter()
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def handle_event(self, event_view):
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"""Process events that the app is subscribed to."""
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if event_view[0] == wasp.EVENT_TICK:
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self.update()
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else:
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# TODO: Raise an unexpected event exception
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pass
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def foreground(self, effect=None):
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"""Activate the application."""
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self.on_screen = ( -1, -1, -1, -1, -1, -1 )
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self.draw(effect)
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wasp.system.request_tick(1000)
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def tick(self, ticks):
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self.update()
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def background(self):
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"""De-activate the application (without losing state)."""
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pass
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def sleep(self):
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return True
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def wake(self):
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self.update()
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def draw(self, effect=None):
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"""Redraw the display from scratch."""
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draw = wasp.watch.drawable
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draw.fill()
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draw.rleblit(digits.clock_colon, pos=(2*48, 80), fg=0xb5b6)
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self.on_screen = ( -1, -1, -1, -1, -1, -1 )
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self.update()
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self.meter.draw()
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def update(self):
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"""Update the display (if needed).
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The updates are a lazy as possible and rely on an prior call to
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draw() to ensure the screen is suitably prepared.
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"""
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now = wasp.watch.rtc.get_localtime()
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if now[3] == self.on_screen[3] and now[4] == self.on_screen[4]:
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if now[5] != self.on_screen[5]:
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self.meter.update()
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self.on_screen = now
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return False
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draw = wasp.watch.drawable
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draw.rleblit(DIGITS[now[4] % 10], pos=(4*48, 80))
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draw.rleblit(DIGITS[now[4] // 10], pos=(3*48, 80), fg=0xbdb6)
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draw.rleblit(DIGITS[now[3] % 10], pos=(1*48, 80))
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draw.rleblit(DIGITS[now[3] // 10], pos=(0*48, 80), fg=0xbdb6)
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self.on_screen = now
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month = now[1] - 1
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month = MONTH[month*3:(month+1)*3]
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draw.string('{} {} {}'.format(now[2], month, now[0]),
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0, 180, width=240)
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self.meter.update()
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return True
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