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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!
from traits.api import List, Str, Tuple, Enum, Instance, Union
from pyface.tasks.task_layout import LayoutContainer, TaskLayout
class TaskWindowLayout(LayoutContainer):
""" The layout of a TaskWindow.
"""
#: The ID of the active task. If unspecified, the first task will be
#: active.
active_task = Str()
#: The tasks contained in the window. If an ID is specified, the task will
#: use its default layout. Otherwise, it will use the specified TaskLayout
items = List(Union(Str, Instance(TaskLayout)), pretty_skip=True)
#: The position of the window.
position = Tuple(-1, -1)
#: The size of the window.
size = Tuple(800, 600)
#: Whether or not the application is maximized.
size_state = Enum("normal", "maximized")
def get_active_task(self):
""" Returns the ID of the active task in the layout, or None if there is
no active task.
"""
if self.active_task:
return self.active_task
elif self.items:
first = self.items[0]
return first if isinstance(first, str) else first.id
return None
def get_tasks(self):
""" Returns the IDs of the tasks in the layout.
"""
return [
(item if isinstance(item, str) else item.id) for item in self.items
]
def is_equivalent_to(self, layout):
""" Returns whether two layouts are equivalent, i.e. whether they
contain the same tasks.
"""
return isinstance(layout, TaskWindowLayout) and set(
self.get_tasks()
) == set(layout.get_tasks())
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