SOAdvancedDissector/display.py

90 lines
2.8 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright Grégory Soutadé
# This file is part of SOAdvancedDissector
# SOAdvancedDissector is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SOAdvancedDissector is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SOAdvancedDissector. If not, see <http://www.gnu.org/licenses/>.
#
import sys
class ProgressionDisplay():
"""Class that manage nice display
with progression continuous update in percent"""
def __init__(self):
self.reset(False)
def reset(self, printEmptyLine=False):
"""Reset display and optionaly print an empty line"""
self.message = ''
self.target_progression = 0
self.cur_progression = 0
self.watermark = 0
self.cur_watermark = 0
if printEmptyLine:
print('')
def setTarget(self, message, target=0, watermark=0):
"""New progression to display
Parameters
----------
message : str
Message to display
target (Optional) : int
Max progression value, if not set, no percent will be displayed
watermark (Optional) : int
Only display message when progression >= watermark
"""
self.reset()
self.message = message
self.target_progression = target
self.watermark = watermark
def progress(self, increment):
"""Increment progression and display new one"""
self.cur_progression += increment
self.cur_watermark += increment
if self.cur_progression > self.target_progression:
self.cur_progression = self.target_progression
if self.cur_watermark < self.watermark and\
self.cur_progression < self.target_progression:
return
display = ''
if self.target_progression:
cur_percent = int((self.cur_progression*100)/self.target_progression)
display = '{} [{}%]'.format(self.message, cur_percent)
else:
display = '{}'.format(self.message)
sys.stdout.write('\r{}\r'.format(' ' * (len(display)+5))) # First, clear line
sys.stdout.write(display)
sys.stdout.flush()
def finish(self):
"""End of progression, ensure we display "100%" value"""
if self.target_progression:
self.progress(self.target_progression) # Print 100%
print('')
else:
pass # Do nothing