# ------------------------------------------------------------------------------
#
#  Copyright (c) 2008, Enthought, Inc.
#  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!
#
#  Author: David C. Morrill
#  Date:   10/21/2004
#
# ------------------------------------------------------------------------------

""" Defines the color editor factory for the all traits toolkit backends.
"""



from traits.api import Bool

from ..toolkit import toolkit_object

# CIRCULAR IMPORT FIXME: Importing from the source rather than traits.ui.api
# to avoid circular imports, as this EditorFactory will be part of
# traits.ui.api as well.
from ..view import View

from ..editor_factory import EditorFactory

# -------------------------------------------------------------------------
#  'ToolkitEditorFactory' class:
# -------------------------------------------------------------------------


class ToolkitEditorFactory(EditorFactory):
    """ Editor factory for color editors.
    """

    # -------------------------------------------------------------------------
    #  Trait definitions:
    # -------------------------------------------------------------------------

    #: Is the underlying color trait mapped?
    mapped = Bool(True)

    #: Do we use a native dialog for the popup or the toolkit's?
    #: At present, only affects Qt.
    use_native_dialog = Bool(True)

    # -------------------------------------------------------------------------
    #  Traits view definition:
    # -------------------------------------------------------------------------

    traits_view = View(["mapped{Is value mapped?}", "|[]>"])


# Define the ColorEditor class
# The function will try to return the toolkit-specific editor factory (located
# in traitsui.<toolkit>.color_editor, and if none is found, the
# ToolkitEditorFactory declared here is returned.
def ColorEditor(*args, **traits):
    r""" Returns an instance of the toolkit-specific editor factory declared in
    traitsui.<toolkit>.color_editor. If such an editor factory
    cannot be located, an instance of the abstract ToolkitEditorFactory
    declared in traitsui.editors.color_editor is returned.

    Parameters
    ----------
    \*args, \*\*traits
        arguments and keywords to be passed on to the editor
        factory's constructor.
    """

    try:
        return toolkit_object("color_editor:ToolkitEditorFactory", True)(
            *args, **traits
        )
    except:
        return ToolkitEditorFactory(*args, **traits)
