99 lines
3.2 KiB
Python
99 lines
3.2 KiB
Python
# SPDX-License-Identifier: LGPL-3.0-or-later
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# Copyright (C) 2020 Daniel Thompson
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"""The complete set of wasp-os application entry points are documented
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below as part of a template application. Note that the template does
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not rely on any specific parent class. This is because applications in
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wasp-os can rely on *duck typing* making a class hierarchy pointless.
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"""
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import wasp
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import icons
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class TemplateApp():
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"""Template application.
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The template application includes every application entry point. It
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is used as a reference guide and can also be used as a template for
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creating new applications.
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.. data:: NAME = 'Template'
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Applications must provide a short ``NAME`` that is used by the
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launcher to describe the application. Names that are longer than
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8 characters are likely to be abridged by the launcher in order
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to fit on the screen.
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.. data:: ICON = RLE2DATA
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Applications can optionally provide an icon for display by the
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launcher. Applications that expect to be installed on the quick
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ring will not be listed by the launcher and need not provide any
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icon. When no icon is provided the system will use a default
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icon.
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The icon is an opportunity to differentiate your application from others
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so supplying an icon is strongly recommended. The icon, when provided,
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must not be larger than 96x64.
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"""
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NAME = 'Template'
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ICON = icons.app
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def __init__(self):
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"""Initialize the application."""
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pass
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def foreground(self):
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"""Activate the application."""
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self._draw()
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wasp.system.request_event(wasp.EventMask.TOUCH |
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wasp.EventMask.SWIPE_UPDOWN |
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wasp.EventMask.BUTTON)
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wasp.system.request_tick(1000)
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def background(self):
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"""De-activate the application."""
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pass
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def sleep(self):
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"""Notify the application the device is about to sleep."""
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return False
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def wake(self):
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"""Notify the application the device is waking up."""
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pass
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def press(self, button, state):
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"""Notify the application of a button-press event."""
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draw = wasp.watch.drawable
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draw.string('Button', 0, 108, width=240)
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def swipe(self, event):
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"""Notify the application of a touchscreen swipe event."""
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draw = wasp.watch.drawable
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if event[0] == wasp.EventType.UP:
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draw.string('Swipe up', 0, 108, width=240)
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else:
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draw.string('Swipe down', 0, 108, width=240)
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def tick(self, ticks):
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"""Notify the application that its periodic tick is due."""
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pass
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def touch(self, event):
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"""Notify the application of a touchscreen touch event."""
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draw = wasp.watch.drawable
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wasp.watch.drawable.string('({}, {})'.format(
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event[1], event[2]), 0, 108, width=240)
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def _draw(self):
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"""Draw the display from scratch."""
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draw = wasp.watch.drawable
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draw.fill()
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draw.string(self.NAME, 0, 6, width=240)
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self._update()
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def _update(self):
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"""Update the dynamic parts of the application display."""
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pass
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