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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/>.
class Widget(object):
'''Base class for ttystatus widgets.
Widgets are responsible for formatting part of the output. They
get a value or values either directly from the user, or from the
master TerminalStatus widget. They return the formatted string
via __str__.
'''
def __str__(self):
'''Return current value to be displayed for this widget.'''
if hasattr(self, 'value'):
return self.value
else:
return ''
def update(self, master, width):
'''Update displayed value for widget, from values in master.
'width' gives the width for which the widget should aim to fit.
It is OK if it does not: for some widgets there is no way to
adjust to a smaller size.
'''
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