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"""Examples demonstrating various spinners.
Attributes
----------
CLEAR_LINE : str
Ascii to clear the current line
"""
from __future__ import print_function
import os
os.sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import sys
import time
import codecs
try:
import cursor
except ImportError:
import subprocess
if sys.version_info.major == 2:
subprocess.call(['pip2', 'install', 'cursor'])
else:
subprocess.call(['pip3', 'install', 'cursor'])
import cursor
from spinners import Spinners
CLEAR_LINE = '\033[K'
def decode_utf_8_text(text):
"""Decodes the text from utf-8 format.
Parameters
----------
text : str
Text to be decoded
Returns
-------
str
Decoded text
"""
try:
return codecs.decode(text, 'utf-8')
except:
return text
def encode_utf_8_text(text):
"""Encodes the text to utf-8 format
Parameters
----------
text : str
Text to be encoded
Returns
-------
str
Encoded text
"""
try:
return codecs.encode(text, 'utf-8')
except:
return text
if sys.version_info.major == 2:
get_coded_text = encode_utf_8_text
else:
get_coded_text = decode_utf_8_text
def animate(frames, interval, name, iterations=2):
"""Animate given frame for set number of iterations.
Parameters
----------
frames : list
Frames for animating
interval : float
Interval between two frames
name : str
Name of animation
iterations : int, optional
Number of loops for animations
"""
for i in range(iterations):
for frame in frames:
frame = get_coded_text(frame)
output = "\r{0} {1}".format(frame, name)
sys.stdout.write(output)
sys.stdout.write(CLEAR_LINE)
sys.stdout.flush()
time.sleep(0.001 * interval)
try:
cursor.hide()
spinners = [spinner for spinner in Spinners] # pylint: disable=not-an-iterable
sorted_spinners = sorted(spinners, key=lambda spinner: spinner.name)
for spinner in sorted_spinners:
frames = spinner.value['frames']
interval = spinner.value['interval']
name = spinner.name
animate(frames, interval, name)
print('\n')
finally:
cursor.show()
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