81 lines
2.1 KiB
Python
81 lines
2.1 KiB
Python
# SPDX-License-Identifier: LGPL-3.0-or-later
|
|
# Copyright (C) 2020 Daniel Thompson
|
|
|
|
import wasp
|
|
import icons
|
|
|
|
class LauncherApp():
|
|
"""An application launcher application.
|
|
"""
|
|
NAME = 'Launcher'
|
|
ICON = icons.app
|
|
|
|
def foreground(self):
|
|
"""Activate the application."""
|
|
self._page = 0
|
|
self._draw()
|
|
wasp.system.request_event(wasp.EventMask.TOUCH |
|
|
wasp.EventMask.SWIPE_UPDOWN)
|
|
|
|
def swipe(self, event):
|
|
i = self._page
|
|
n = self._num_pages
|
|
if event[0] == wasp.EventType.UP:
|
|
i += 1
|
|
if i >= n:
|
|
i -= 1
|
|
wasp.watch.vibrator.pulse()
|
|
return
|
|
else:
|
|
i -= 1
|
|
if i < 0:
|
|
wasp.system.switch(wasp.system.applications[0])
|
|
return
|
|
|
|
self._page = i
|
|
wasp.watch.display.mute(True)
|
|
self._draw()
|
|
wasp.watch.display.mute(False)
|
|
|
|
def touch(self, event):
|
|
page = self._get_page(self._page)
|
|
x = event[1]
|
|
y = event[2]
|
|
app = page[2 * (y // 120) + (x // 120)]
|
|
if app:
|
|
wasp.system.switch(app)
|
|
else:
|
|
wasp.watch.vibrator.pulse()
|
|
|
|
@property
|
|
def _num_pages(self):
|
|
"""Work out what the highest possible pages it."""
|
|
num_apps = len(wasp.system.applications)
|
|
return (num_apps + 3) // 4
|
|
|
|
def _get_page(self, i):
|
|
apps = wasp.system.applications
|
|
page = apps[4*i: 4*(i+1)]
|
|
while len(page) < 4:
|
|
page.append(None)
|
|
return page
|
|
|
|
def _draw(self):
|
|
"""Redraw the display from scratch."""
|
|
def draw_app(app, x, y):
|
|
if not app:
|
|
return
|
|
draw.set_color(0xffff)
|
|
draw.blit(app.ICON, x+13, y+12)
|
|
draw.set_color(0xbdb6)
|
|
draw.string(app.NAME, x, y+120-30, 120)
|
|
|
|
draw = wasp.watch.drawable
|
|
page = self._get_page(self._page)
|
|
|
|
draw.fill()
|
|
draw_app(page[0], 0, 0)
|
|
draw_app(page[1], 120, 0)
|
|
draw_app(page[2], 0, 120)
|
|
draw_app(page[3], 120, 120)
|