#  Copyright (c) 2007, Enthought, Inc.
#  License: BSD Style.

"""
Implementation of a TupleEditor demo plugin for Traits UI demo program.

This demo shows each of the four styles of the TupleEditor
"""

# Imports:
from __future__ import absolute_import
from traits.api \
    import HasTraits, Tuple, Color, Range, Str

from traitsui.api \
    import Item, Group, View

# The main demo class:


class TupleEditorDemo(HasTraits):
    """ Defines the TupleEditor demo class.
    """

    # Define a trait to view:
    tuple = Tuple(Color, Range(1, 4), Str)

    # Display specification (one Item per editor style):
    tuple_group = Group(
        Item('tuple', style='simple', label='Simple'),
        Item('_'),
        Item('tuple', style='custom', label='Custom'),
        Item('_'),
        Item('tuple', style='text', label='Text'),
        Item('_'),
        Item('tuple', style='readonly', label='ReadOnly')
    )

    # Demo view
    view = View(
        tuple_group,
        title='TupleEditor',
        buttons=['OK'],
        resizable=True
    )


# Create the demo:
demo = TupleEditorDemo()

# Run the demo (if invoked from the command line):
if __name__ == '__main__':
    demo.configure_traits()