My personal fork of wasp-os, the MicroPython-based OS for smartwatches
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# SPDX-License-Identifier: LGPL-3.0-or-later
# Copyright (C) 2021 Francesco Gazzetta
"""Level application
~~~~~~~~~~~~~~~~~~~~
This app shows a dot that moves depending on the orientation of the watch.
A tap opens a menu with the option to calibrate or reset the level.
To calibrate, place the watch on a flat surface, then tap the "Calibrate"
button while ensuring the watch is stationary.
.. figure:: res/LevelApp.png
:width: 179
"""
import wasp
import watch
import widgets
from micropython import const
_X_MAX = const(240)
_Y_MAX = const(240)
_X_CENTER = const(120)
_Y_CENTER = const(120)
class LevelApp():
NAME = "Level"
# 2-bit RLE, 96x64, generated from res/level_icon.png, 410 bytes
ICON = (
b'\x02'
b'`@'
b'?\xff\xff\xff\xff\xff\xd0@\xa8L\x80r\x82\xc0\xfd\xf0'
b'\x82L\x13M\x82@\xb0O\xc1\x05\xc1\x04\xc1\x05\xc1O'
b'\x82\x80\xa8\x8d\x11\x8e\xc0r\xc2[email protected]\xfdA\x05A\x04'
b'A\x05A\x80\xb0\x8f\xc2\xc0\xa8\xce\x10\xce@rB\x8f'
b'\x80\xfd\x81\x05\x81\x04\x81\x05\x81\xc0\xb0\xcf[email protected]\xa8N'
b'\x10N\x80r\x82\xcf\xc0\xfd\xc1\x05\xc1\x04\xc1\x05\xc1@'
b'\xb0O\x82\x80\xa8\x8e\x10\x8e\xc0r\xc2[email protected]\xfdA\x05'
b'A\x04A\x05A\x80\xb0\x8f\xc2\xc0\xa8\xce\x10\xce@r'
b'B\x8f\x80\xfd\x81\xc0\xb0\xc1\x04\x81\x04\x81\x04\xc1\x81\xcf'
b'[email protected]\xa8N\x10N\x80r\x82\xcf\xc0\xfd\xc1@\xb0C'
b'\x02\xc1\x04\xc1\x02C\xc1O\x82\x80\xa8\x8e\x10\x8e\xc0r'
b'\xc2[email protected]\xfdA\x80\xb0\x85A\x84A\x85A\x8f\xc2\xc0'
b'\xa8\xce\x10\xce@rB\x8f\x80\xfd\x81\xc0\xb0\xc5\x81\xc4'
b'\x81\xc5\x81\xcf[email protected]\xa8N\x10N\x80r\x82\xcf\xc0\xfd'
b'\xc1@\xb0E\xc1D\xc1E\xc1O\x82\x80\xa8\x8e\x10\x8e'
b'\xc0r\xc2[email protected]\xfdA\x80\xb0\x85A\x84A\x85A\x8f'
b'\xc2\xc0\xa8\xce\x10\xce@rC\x8e\x80\xfd\x81\xc0\xb0\xc5'
b'\x81\xc4\x81\xc5\x81\xce[email protected]\xa8N\x10O\x80r\x82\xce'
b'\xc0\xfd\xc1@\xb0E\xc1D\xc1E\xc1N\x82\x80\xa8\x8f'
b'\x10\x8f\xc0r\xc3[email protected]\xfdA\x80\xb0\x85A\x84A\x85'
b'A\x8d\xc3\xc0\xa8\xcf\x10\xd0@rD\x8b\x80\xfd\x81\xc0'
b'\xb0\xc5\x81\xc4\x81\xc5\x81\xcb[email protected]\xa8P\x10Q\x80r'
b'\xaeQ\x10S\xaaS\x10\x7f\x11\x10\x7f\x11\x10\x7f\x11\x10'
b'\x7f\x11\x10\x7f\x11\x10\x7f\x11\x10\x7f\x11\x10\x7f\x11\x10\x7f'
b'\x11\x10\x7f\x11\x10\x7f\x11\x10\x7f\x11\x11\x7f\x0f\x13\x7f\r'
b'?\xff\xff\xff\xff\xff\xd0'
)
def __init__(self):
self.old_xy = (0,0)
self.calibration = (0,0)
self.prompt = False
self.calibrate = widgets.Button(20, 20, 200, 60, 'Calibrate')
self.reset = widgets.Button(20, 90, 200, 60, 'Reset')
self.cancel = widgets.Button(20, 160, 200, 60, 'Cancel')
def foreground(self):
self.prompt = False # in case the watch went to sleep with prompt on
self._draw()
wasp.system.request_event(wasp.EventMask.TOUCH)
wasp.system.request_tick(125)
def _draw(self):
wasp.watch.drawable.fill()
self._update()
def _update(self):
if not self.prompt:
draw = wasp.watch.drawable
# Clear the old bubble
draw.fill(None, self.old_xy[0] - 3 + _X_CENTER, self.old_xy[1] - 3 + _Y_CENTER, 6, 6)
# draw guide lines
draw.line(0, _Y_CENTER, _X_MAX, _Y_CENTER, color = wasp.system.theme('mid'))
draw.line(_X_CENTER, 0, _X_CENTER, _Y_MAX, color = wasp.system.theme('mid'))
(new_x, new_y, _) = watch.accel.accel_xyz()
# We clamp and scale the values down a bit to make them fit better,
# and apply the calibration.
# The scaling factor is negative because when gravity pulls in one
# direction we want the bubble to go the other direction.
new_x = min(_X_CENTER, max(-_X_CENTER, (new_x-self.calibration[0])//-3))
new_y = min(_Y_CENTER, max(-_Y_CENTER, (new_y-self.calibration[1])//-3))
# Draw the new bubble
draw.fill(wasp.system.theme('bright'), new_x - 3 + _X_CENTER, new_y - 3 + _Y_CENTER, 6, 6)
self.old_xy = (new_x, new_y)
def tick(self, ticks):
self._update()
wasp.system.keep_awake()
def touch(self, event):
if self.prompt:
# Handle buttons
if self.calibrate.touch(event):
(x, y, _) = watch.accel.accel_xyz()
self.calibration = (x, y)
if self.reset.touch(event):
self.calibration = (0,0)
#if self.cancel.touch(event):
# pass
# reset the color (buttons set it to blue) and disable prompt
wasp.watch.drawable.set_color(wasp.system.theme('bright'))
self.prompt = False
self._draw()
else:
# Draw menu
self.prompt = True
wasp.watch.drawable.fill()
self.calibrate.draw()
self.reset.draw()
self.cancel.draw()