mirror of
https://github.com/brmlab/ledbar.git
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1af1b8093a
* depends on pygame, which is something like wrapper around SDL * it gets its input from stdin, displays it and sends it to stdout, so some other script can work with it further
75 lines
1.8 KiB
Python
Executable file
75 lines
1.8 KiB
Python
Executable file
#!/usr/bin/python
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# vim:et:sw=4:ts=4:sts=4
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import sys
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import getopt
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import pygame
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def print_usage():
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print '''\
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USAGE:
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%s [-n number] [-h]
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OPTIONS:
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-n number number of controlled boxes
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-h --help show this help
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''' % sys.argv[0]
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def read_byte():
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r = sys.stdin.read(1)
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if len(r) == 0: raise EOFError
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return ord(r)
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def write_byte(b):
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sys.stdout.write(chr(b))
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def main():
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'n:h', ['help'])
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except getopt.GetOptError:
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print_usage()
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return 1
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if len(args):
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print_usage()
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return 1
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number = 10
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show_help = False
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for k, v in opts:
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if k == '-n':
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if not v.isdigit():
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print_usage()
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return 1
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number = int(v)
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elif k == '-h' or k == '--help': show_help = True
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if show_help:
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print_usage()
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return 0
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pygame.init()
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screen_size = [800, 600]
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screen = pygame.display.set_mode(screen_size)
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pygame.display.set_caption("ledbar demo viewer")
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offset = 5
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pixel_width = (screen_size[0]-offset) / number
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try:
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exit = False
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while not exit:
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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exit = True
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continue
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screen.fill([0, 0, 0])
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for i in xrange(number):
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r = read_byte()
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g = read_byte()
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b = read_byte()
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pygame.draw.rect(screen, [r, g, b], [pixel_width*i, 0, pixel_width-offset, pixel_width-offset])
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write_byte(r); write_byte(g); write_byte(b)
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pygame.display.flip()
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except EOFError:
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pass
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finally:
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pygame.quit()
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return 0
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sys.exit(main())
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