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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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# Copyright (C) 2019 Nicolargo <[email protected]> |
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# |
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# Glances is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU Lesser General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Glances is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Lesser General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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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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r"""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__(self, size, |
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percentage_char='|', empty_char=' ', |
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pre_char='[', post_char=']', |
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with_text=True): |
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# Build curses_bars |
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self.__curses_bars = [empty_char] * 5 + [percentage_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 = 0 |
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self.max_value = 100 |
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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.__with_text = with_text |
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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.__with_text: |
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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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if value >= self.max_value: |
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value = self.max_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): |
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"""Return the bars.""" |
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frac, whole = modf(self.size * self.percent / 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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if self.__with_text: |
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ret = '{}{:5.1f}%'.format(ret, self.percent) |
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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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