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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 Index(ttystatus.Widget):
'''Display the position of a value in a list of values.'''
def __init__(self, name, listname):
self.name = name
self.listname = listname
self.value = self.format(0, 0)
self.interesting_keys = set([name, listname])
def format(self, index, listlen):
return '%d/%d' % (index, listlen)
def update(self, master, width):
value = master[self.name]
listvalue = master[self.listname]
try:
index = listvalue.index(value) + 1
except ValueError:
pass
else:
self.value = self.format(index, len(listvalue))
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