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switch.py
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#!/usr/bin/env python
'''
switch.py - Optional utility for starting with DIP switches set.
'''
X = 111
Y = 199
import os
os.environ['SDL_VIDEO_WINDOW_POS'] = f'{X},{Y}' # before pygame import
import pygame
import time
import subprocess
WIDTH = 123
HEIGHT = 456
SIZE = 27
WAIT = 0.1
BACK = (255, 255, 255)
TEXT = ( 0, 0, 0)
ROLL = (211, 255, 222)
PUSH = (123, 222, 99)
pygame.init()
pygame.display.set_caption('DIP Switch')
screen = pygame.display.set_mode((WIDTH, HEIGHT))
font = pygame.font.SysFont(pygame.font.get_default_font(), SIZE)
dip = pygame.Surface((WIDTH - SIZE, HEIGHT / 10))
dips = ''
mouse = None
keys = [ ]
run = False
while run is not None:
screen.fill(BACK)
for i in range(10):
dip.fill(PUSH if chr(i + ord('0')) in dips else ROLL)
screen.blit(dip, (SIZE, i * HEIGHT / 10))
text = font.render(str(i), True, TEXT)
screen.blit(text, (0, i * HEIGHT / 10))
pygame.display.update()
if run:
cmd = ['./start.py', dips]
print('# '+' '.join(cmd))
os.environ['SDL_VIDEO_WINDOW_POS'] = f'{X+SIZE*2},{Y-WIDTH}'
subprocess.run(cmd)
pygame.event.clear()
mouse = None
run = False
print('--- switch ready ---')
continue
time.sleep(WAIT)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = None
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_BREAK:
dips = ''
keys = [ ]
elif event.key == pygame.K_ESCAPE:
if keys:
keys = [ ]
else:
run = None
elif event.key == pygame.K_RETURN or event.key == pygame.K_KP_ENTER:
run = True
elif event.unicode >= '0' and event.unicode <= '9':
keys.append(event.key)
if event.unicode not in dips:
dips += event.unicode
else:
dips = dips.replace(event.unicode, '')
elif event.type == pygame.KEYUP:
if event.key in keys:
del keys[keys.index(event.key)]
if not keys:
run = True
elif event.type == pygame.MOUSEBUTTONDOWN:
mouse = int(event.pos[1] / HEIGHT * 10) + ord('0')
if event.button == pygame.BUTTON_LEFT:
if chr(mouse) not in dips:
dips += chr(mouse)
elif event.button == pygame.BUTTON_RIGHT:
if chr(mouse) in dips:
dips = dips.replace(chr(mouse), '')
mouse *= -1
else:
mouse = None
elif event.type == pygame.MOUSEBUTTONUP:
if event.button == pygame.BUTTON_LEFT \
or event.button == pygame.BUTTON_RIGHT:
mouse = None
else:
run = True
elif event.type == pygame.MOUSEMOTION:
if mouse:
mouse = int(event.pos[1] / HEIGHT * 10) + ord('0')
if not mouse < 0:
if chr(mouse) not in dips:
dips += chr(mouse)
else:
if chr(mouse) in dips:
dips = dips.replace(chr(mouse), '')
mouse *= -1

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