Source code for pyface.viewer.column_provider

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""" Base class for all column providers. """


from traits.api import HasTraits, Int


[docs]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. # ------------------------------------------------------------------------
[docs] def get_label(self, viewer, column_index): """ Returns the label for a column. """ return "Column %d" % column_index
[docs] 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
[docs] 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"