#------------------------------------------------------------------------------
# Copyright (c) 2012, Enthought, Inc.
# All rights reserved.
#------------------------------------------------------------------------------
from traits.api import Property, cached_property
from .widget import Widget
[docs]class MdiWindow(Widget):
""" A widget which can be used as a window in an MdiArea.
An MdiWindow is a widget which can be used as an independent window
in an MdiArea. It can have at most a single child widget which is
an instance of Widget.
"""
#: A read only property which returns the pane's dock widget.
mdi_widget = Property(depends_on='children')
#--------------------------------------------------------------------------
# Private API
#--------------------------------------------------------------------------
@cached_property
def _get_mdi_widget(self):
""" The getter for the 'mdi_widget' property.
Returns
-------
result : Widget or None
The mdi widget for the MdiWindow, or None if not provided.
"""
widget = None
for child in self.children:
if isinstance(child, Widget):
widget = child
return widget