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#------------------------------------------------------------------------------
# Copyright (c) 2009, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/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: Evan Patterson
# Date: 06/26/09
#------------------------------------------------------------------------------
""" The interface for manipulating the toolkit clipboard.
"""
# ETS imports
from traits.api import HasStrictTraits, Interface, Property
from traitsui.ui_traits import SequenceTypes
class IClipboard(Interface):
""" The interface for manipulating the toolkit clipboard.
"""
#: The type of data in the clipboard (string)
data_type = Property
#: Arbitrary Python data stored in the clipboard
data = Property
#: Arbitrary Python data is available in the clipboard
has_data = Property
#: Name of the class of object in the clipboard
object_type = Property
#: Python object data
object_data = Property
#: Python object data is available
has_object_data = Property
#: Text data
text_data = Property
#: Text data is available
has_text_data = Property
#: File name data
file_data = Property
#: File name data is available
has_file_data = Property
class BaseClipboard(HasStrictTraits):
""" An abstract base class that contains common code for toolkit specific
implementations of IClipboard.
"""
#: The type of data in the clipboard (string)
data_type = Property
#: Arbitrary Python data stored in the clipboard
data = Property
#: Arbitrary Python data is available in the clipboard
has_data = Property
#: Name of the class of object in the clipboard
object_type = Property
#: Python object data
object_data = Property
#: Python object data is available
has_object_data = Property
#: Text data
text_data = Property
#: Text data is available
has_text_data = Property
#: File name data
file_data = Property
#: File name data is available
has_file_data = Property
def _get_data(self):
if self.has_text_data:
return self.text_data
if self.has_file_data:
return self.file_data
if self.has_object_data:
return self.object_data
return None
def _set_data(self, data):
if isinstance(data, basestring):
self.text_data = data
elif type(data) in SequenceTypes:
self.file_data = data
else:
self.object_data = data
def _get_data_type ( self ):
if self.has_text_data:
return 'str'
if self.has_file_data:
return 'file'
if self.has_object_data:
return self.object_type
return ''
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