231f3b6fdd
Currently wasp-os enables a narrow set of applications because we don't want to consume RAM by importing the module and constructing the application. We can improve on this situation by providing a small (stateless) application that can be used to enable or diable applications. This allows all the ROMed applications to be enabled using the GUI without compromising on the ability to develop applications. In fact this application significantlly reduces the RAM consumed in the default case becasue the Self Test app does not need to maintain its state. Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
43 lines
947 B
Python
43 lines
947 B
Python
# SPDX-License-Identifier: LGPL-3.0-or-later
|
|
# Copyright (C) 2020 Daniel Thompson
|
|
|
|
"""Flashlight
|
|
~~~~~~~~~~~~~
|
|
|
|
Shows a pure white screen with the backlight set to maximum.
|
|
"""
|
|
|
|
import wasp
|
|
|
|
import icons
|
|
|
|
class TorchApp(object):
|
|
"""Trivial flashlight application.
|
|
|
|
.. figure:: res/TorchApp.png
|
|
:width: 179
|
|
|
|
Screenshot of the flashlight application
|
|
"""
|
|
NAME = 'Torch'
|
|
ICON = icons.torch
|
|
|
|
def foreground(self):
|
|
"""Activate the application."""
|
|
self.draw()
|
|
wasp.system.request_tick(1000)
|
|
|
|
self._brightness = wasp.system.brightness
|
|
wasp.system.brightness = 3
|
|
|
|
def background(self):
|
|
"""De-activate the application (without losing state)."""
|
|
wasp.system.brightness = self._brightness
|
|
|
|
def tick(self, ticks):
|
|
wasp.system.keep_awake()
|
|
|
|
def draw(self):
|
|
"""Redraw the display from scratch."""
|
|
wasp.watch.drawable.fill(0xffff)
|