# Copyright 2011  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 Integer(ttystatus.Widget):

    '''Display a value as an integer.'''
    
    def __init__(self, key):
        self._key = key
        self.interesting_keys = [key]
        self.value = '#'

    def format(self):
        return self.value
        
    def update(self, master, width):
        try:
            self.value = str(int(master[self._key]))
        except ValueError:
            self.value = '#'