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# -*- coding: utf-8 -*- |
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# |
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# This file is part of Glances. |
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# |
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# SPDX-FileCopyrightText: 2022 Nicolas Hennion <[email protected]> |
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# |
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# SPDX-License-Identifier: LGPL-3.0-only |
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# |
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"""Manage bars for Glances output.""" |
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from __future__ import division |
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from math import modf |
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class Bar(object): |
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"""Manage bar (progression or status). |
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import sys |
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import time |
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b = Bar(10) |
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for p in range(0, 100): |
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b.percent = p |
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print("\r%s" % b), |
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time.sleep(0.1) |
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sys.stdout.flush() |
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""" |
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def __init__( |
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self, |
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size, |
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bar_char='|', |
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empty_char=' ', |
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pre_char='[', |
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post_char=']', |
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unit_char='%', |
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display_value=True, |
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min_value=0, |
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max_value=100, |
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): |
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"""Init a bar (used in Quicllook plugin) |
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Args: |
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size (_type_): Bar size |
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bar_char (str, optional): Bar character. Defaults to '|'. |
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empty_char (str, optional): Empty character. Defaults to ' '. |
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pre_char (str, optional): Display this char before the bar. Defaults to '['. |
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post_char (str, optional): Display this char after the bar. Defaults to ']'. |
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unit_char (str, optional): Unit char to be displayed. Defaults to '%'. |
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display_value (bool, optional): Do i need to display the value. Defaults to True. |
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min_value (int, optional): Minimum value. Defaults to 0. |
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max_value (int, optional): Maximum value (percent can be higher). Defaults to 100. |
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""" |
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# Build curses_bars |
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self.__curses_bars = [empty_char] * 5 + [bar_char] * 5 |
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# Bar size |
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self.__size = size |
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# Bar current percent |
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self.__percent = 0 |
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# Min and max value |
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self.min_value = min_value |
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self.max_value = max_value |
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# Char used for the decoration |
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self.__pre_char = pre_char |
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self.__post_char = post_char |
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self.__empty_char = empty_char |
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self.__unit_char = unit_char |
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# Value should be displayed ? |
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self.__display_value = display_value |
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@property |
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def size(self, with_decoration=False): |
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# Return the bar size, with or without decoration |
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if with_decoration: |
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return self.__size |
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if self.__display_value: |
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return self.__size - 6 |
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@property |
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def percent(self): |
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return self.__percent |
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@percent.setter |
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def percent(self, value): |
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if value < self.min_value: |
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value = self.min_value |
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self.__percent = value |
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@property |
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def pre_char(self): |
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return self.__pre_char |
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@property |
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def post_char(self): |
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return self.__post_char |
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def get(self, overlay: str = None): |
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"""Return the bars.""" |
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value = self.max_value if self.percent > self.max_value else self.percent |
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# Build the bar |
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frac, whole = modf(self.size * value / 100.0) |
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ret = self.__curses_bars[8] * int(whole) |
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if frac > 0: |
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ret += self.__curses_bars[int(frac * 8)] |
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whole += 1 |
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ret += self.__empty_char * int(self.size - whole) |
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# Add the value |
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if self.__display_value: |
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if self.percent >= self.max_value: |
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ret = '{} {}{:3.0f}{}'.format( |
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ret, '>' if self.percent > self.max_value else ' ', self.max_value, self.__unit_char |
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) |
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else: |
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ret = '{}{:5.1f}{}'.format(ret, self.percent, self.__unit_char) |
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# Add overlay |
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if overlay and len(overlay) < len(ret) - 6: |
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ret = overlay + ret[len(overlay) :] |
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return ret |
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def __str__(self): |
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"""Return the bars.""" |
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return self.get() |
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nicolargo /
glances
