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FoodVisionVIT
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# -*- coding: utf-8 -*-

# Copyright (c) 2012 Georgios Verigakis <[email protected]>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

from __future__ import unicode_literals

import sys

from . import Progress
from .colors import color


class Bar(Progress):
    width = 32
    suffix = '%(index)d/%(max)d'
    bar_prefix = ' |'
    bar_suffix = '| '
    empty_fill = ' '
    fill = '#'
    color = None

    def update(self):
        filled_length = int(self.width * self.progress)
        empty_length = self.width - filled_length

        message = self.message % self
        bar = color(self.fill * filled_length, fg=self.color)
        empty = self.empty_fill * empty_length
        suffix = self.suffix % self
        line = ''.join([message, self.bar_prefix, bar, empty, self.bar_suffix,
                        suffix])
        self.writeln(line)


class ChargingBar(Bar):
    suffix = '%(percent)d%%'
    bar_prefix = ' '
    bar_suffix = ' '
    empty_fill = 'βˆ™'
    fill = 'β–ˆ'


class FillingSquaresBar(ChargingBar):
    empty_fill = 'β–’'
    fill = 'β–£'


class FillingCirclesBar(ChargingBar):
    empty_fill = 'β—―'
    fill = 'β—‰'


class IncrementalBar(Bar):
    if sys.platform.startswith('win'):
        phases = (u' ', u'β–Œ', u'β–ˆ')
    else:
        phases = (' ', '▏', 'β–Ž', '▍', 'β–Œ', 'β–‹', 'β–Š', 'β–‰', 'β–ˆ')

    def update(self):
        nphases = len(self.phases)
        filled_len = self.width * self.progress
        nfull = int(filled_len)                      # Number of full chars
        phase = int((filled_len - nfull) * nphases)  # Phase of last char
        nempty = self.width - nfull                  # Number of empty chars

        message = self.message % self
        bar = color(self.phases[-1] * nfull, fg=self.color)
        current = self.phases[phase] if phase > 0 else ''
        empty = self.empty_fill * max(0, nempty - len(current))
        suffix = self.suffix % self
        line = ''.join([message, self.bar_prefix, bar, current, empty,
                        self.bar_suffix, suffix])
        self.writeln(line)


class PixelBar(IncrementalBar):
    phases = ('β‘€', 'β‘„', '⑆', '⑇', '⣇', '⣧', 'β£·', 'β£Ώ')


class ShadyBar(IncrementalBar):
    phases = (' ', 'β–‘', 'β–’', 'β–“', 'β–ˆ')