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""" A view whose content is provided by a traits UI. """
# Standard library imports.
import logging
# Enthought library imports.
from enthought.traits.api import Any, Instance, Str
from enthought.traits.ui.api import UI
# Local imports.
from view import View
# Logging.
logger = logging.getLogger(__name__)
class TraitsUIView(View):
""" A view whose content is provided by a traits UI. """
#### 'TraitsUIView' interface #############################################
# The object that we povide a traits UI of (this defaults to the view
# iteself ie. 'self').
obj = Any
# The traits UI that represents the view.
#
# The framework sets this to the value returned by 'create_ui'.
ui = Instance(UI)
# The name of the traits UI view used to create the UI (if not specified,
# the default traits UI view is used).
view = Str
###########################################################################
# 'IWorkbenchPart' interface.
###########################################################################
#### Trait initializers ###################################################
def _name_default(self):
""" Trait initializer. """
return str(self.obj)
#### Methods ##############################################################
def create_control(self, parent):
""" Creates the toolkit-specific control that represents the editor.
'parent' is the toolkit-specific control that is the editor's parent.
Overridden to call 'create_ui' to get the traits UI.
"""
self.ui = self.create_ui(parent)
return self.ui.control
def destroy_control(self):
""" Destroys the toolkit-specific control that represents the editor.
Overridden to call 'dispose' on the traits UI.
"""
# Give the traits UI a chance to clean itself up.
if self.ui is not None:
logger.debug('disposing traits UI for view [%s]', self)
self.ui.dispose()
self.ui = None
# Break reference to the control, so the view is created afresh
# next time.
self.control = None
return
###########################################################################
# 'TraitsUIView' interface.
###########################################################################
#### Trait initializers ###################################################
def _obj_default(self):
""" Trait initializer. """
return self
#### Methods ##############################################################
def create_ui(self, parent):
""" Creates the traits UI that represents the editor.
By default it calls 'edit_traits' on the view's 'model'. If you
want more control over the creation of the traits UI then override!
"""
ui = self.obj.edit_traits(
parent=parent, view=self.view, kind='subpanel'
)
return ui
#### EOF ######################################################################
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