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#-----------------------------------------------------------------------------
#
# Copyright (c) 2007 by Enthought, Inc.
# All rights reserved.
#
#-----------------------------------------------------------------------------
"""
The UI service for the Data plugin.
"""
# Standard library imports.
import logging
# Enthought library imports.
from enthought.envisage.api import ApplicationObject, UOL
from enthought.pyface.api import confirm, error, FileDialog, information, YES
# Data library imports.
# Local imports.
from services import IDATA_MODEL
# Setup a logger for this module
logger = logging.getLogger(__name__)
class UiService(ApplicationObject):
"""
The UI service for the Data plugin.
"""
##########################################################################
# Attributes
##########################################################################
#### public 'UiService' interface ########################################
# A reference to the Data plugin's model service.
model_service = UOL
##########################################################################
# 'Object' interface
##########################################################################
#### operator methods ####################################################
def __init__(self, **kws):
"""
Constructor.
Extended to ensure our UOL properties are set.
"""
super(UiService, self).__init__(**kws)
# Ensure we have a default model-service if one wasn't specified.
if self.model_service is None:
self.model_service = 'service://%s' % IDATA_MODEL
return
##########################################################################
# 'UIService' interface
##########################################################################
#### public methods ######################################################
#TODO cgalvan: to be implemented
# def delete_data(self, context, data_name, parent_window):
# """
# Delete a Data.
#
# """
#
# # Open confirmation-dialog to confirm deletion
# message = 'Are you sure you want to delete %s?' % data_name
# if confirm(parent_window, message) == YES:
# self.model_service.delete_context_item(context, data_name)
#
# return
def edit_data(self, window, data):
"""
Edit the data parameters of the specified data.
"""
data_parameters = data.data_parameters
edit_ui = data_parameters.edit_traits(view='data_view',
kind = 'livemodal',
# handler=handler,
parent=window)
return edit_ui.result
def display_message(self, msg, title=None, is_error=False):
"""
Display the specified message to the user.
"""
# Ensure we record any reasons this method doesn't work. Especially
# since it's critical in displaying errors to users!
try:
# Attempt to identify the current application window.
parent_window = None
workbench = self.application.get_service('enthought.envisage.'
'workbench.IWorkbench')
if workbench is not None:
parent_window = workbench.active_window.control
# Display the requested message
if is_error:
error(parent_window, msg, title=title)
else:
information(parent_window, msg, title=title)
except:
logger.exception('Unable to display pop-up message')
return
#### EOF #####################################################################
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