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# Copyright 2010 Lars Wirzenius
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import ttystatus
class ProgressBar(ttystatus.Widget):
'''Display a progress bar.'''
static_width = False
def __init__(self, done_name, total_name):
self.done_name = done_name
self.total_name = total_name
self.done = 0
self.total = 1
def render(self, width):
try:
done = float(self.done)
total = float(self.total)
except ValueError:
done = 0.0
total = 1.0
if total == 0:
fraction = 0.0
else:
fraction = done / total
n_stars = int(round(fraction * width))
n_dashes = int(width - n_stars)
return ('#' * n_stars) + ('-' * n_dashes)
def update(self, master):
self.done = master[self.done_name]
self.total = master[self.total_name]
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