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# (C) Copyright 2005-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in 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!
""" Color conversion routines for the Qt toolkit.
This module provides a couple of utility methods to support the
pyface.color.Color class to_toolkit and from_toolkit methods.
"""
from pyface.qt.QtGui import QColor
from pyface.color import channels_to_ints, ints_to_channels
def toolkit_color_to_rgba(qcolor):
""" Convert a QColor to an RGBA tuple.
Parameters
----------
qcolor : QColor
A QColor object.
Returns
-------
rgba_tuple : tuple
A tuple of 4 floating point values between 0.0 and 1.0 inclusive.
"""
values = (
qcolor.red(),
qcolor.green(),
qcolor.blue(),
qcolor.alpha(),
)
return ints_to_channels(values)
def rgba_to_toolkit_color(rgba):
""" Convert an RGBA tuple to a QColor.
Parameters
----------
rgba_tuple : tuple
A tuple of 4 floating point values between 0.0 and 1.0 inclusive.
Returns
-------
qcolor : QColor
A QColor object.
"""
values = channels_to_ints(rgba)
return QColor(*values)
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