1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#!/usr/bin/env python
"""
Example application for the 'blessed' Terminal library for python.
This isn't a real progress bar, just a sample "animated prompt" of sorts that demonstrates the
separate move_x() and move_yx() capabilities, made mainly to test the `hpa' compatibility for
'screen' terminal type which fails to provide one, but blessed recognizes that it actually does, and
provides a proxy.
"""
# std imports
import sys
# local
from blessed import Terminal
def main():
"""Program entry point."""
term = Terminal()
assert term.hpa(1) != '', (
'Terminal does not support hpa (Horizontal position absolute)')
col, offset = 1, 1
with term.cbreak():
inp = None
print("press 'X' to stop.")
sys.stderr.write(term.move_yx(term.height, 0) + '[')
sys.stderr.write(term.move_x(term.width - 1) + ']' + term.move_x(1))
while inp != 'X':
if col >= (term.width - 2):
offset = -1
elif col <= 1:
offset = 1
sys.stderr.write(term.move_x(col))
if offset == -1:
sys.stderr.write('.')
else:
sys.stderr.write('=')
col += offset
sys.stderr.write(term.move_x(col))
sys.stderr.write('|\b')
sys.stderr.flush()
inp = term.inkey(0.04)
print()
if __name__ == '__main__':
main()
|
