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#------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Enthought, Inc.
# Description: <Enthought pyface package component>
#------------------------------------------------------------------------------
""" Base class for all column providers. """
# Enthought library imports.
from traits.api import HasTraits, Int
class ColumnProvider(HasTraits):
""" Base class for all column providers.
By default a column's label is 'Column n' and is 100 pixels wide.
"""
# The number of columns.
column_count = Int
###########################################################################
# 'TableColumnProvider' interface.
###########################################################################
def get_label(self, viewer, column_index):
""" Returns the label for a column. """
return 'Column %d' % column_index
def get_width(self, viewer, column_index):
""" Returns the width of a column.
Returning -1 (the default) means that the column will be sized to
fit its longest item (or its column header if it is longer than any
item).
"""
return -1
def get_alignment(self, viewer, column_index):
""" Returns the alignment of the column header and cells.
Returns, 'left', 'right', 'centre' or 'center' ('left' by default).
"""
return 'left'
#### EOF ######################################################################
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