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#------------------------------------------------------------------------------
#
# Copyright (c) 2008, 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: David C. Morrill
# Date: 10/21/2004
#
#------------------------------------------------------------------------------
""" Defines the image enumeration editor factory for all traits user interface
toolkits.
"""
#-------------------------------------------------------------------------------
# Imports:
#-------------------------------------------------------------------------------
from __future__ import absolute_import
import sys
from os import getcwd
from os.path import join, dirname, exists
from traits.api import Module, Type, Unicode, on_trait_change
from .enum_editor import ToolkitEditorFactory as EditorFactory
#-------------------------------------------------------------------------------
# 'ToolkitEditorFactory' class:
#-------------------------------------------------------------------------------
class ToolkitEditorFactory ( EditorFactory ):
""" Editor factory for image enumeration editors.
"""
#---------------------------------------------------------------------------
# Trait definitions:
#---------------------------------------------------------------------------
# Prefix to add to values to form image names:
prefix = Unicode
# Suffix to add to values to form image names:
suffix = Unicode
# Path to use to locate image files:
path = Unicode
# Class used to derive the path to the image files:
klass = Type
# Module used to derive the path to the image files:
module = Module
#---------------------------------------------------------------------------
# Performs any initialization needed after all constructor traits have
# been set:
#---------------------------------------------------------------------------
def init ( self ):
""" Performs any initialization needed after all constructor traits
have been set.
"""
super( ToolkitEditorFactory, self ).init()
self._update_path()
#---------------------------------------------------------------------------
# Handles one of the items defining the path being updated:
#---------------------------------------------------------------------------
@on_trait_change( 'path, klass, module' )
def _update_path ( self ):
""" Handles one of the items defining the path being updated.
"""
if self.path != '':
self._image_path = self.path
elif self.klass is not None:
module = self.klass.__module__
if module == '___main___':
module = '__main__'
try:
self._image_path = join( dirname( sys.modules[ module
].__file__ ), 'images' )
except:
self._image_path = self.path
dirs = [ join( dirname( sys.argv[0] ), 'images' ),
join( getcwd(), 'images' ) ]
for d in dirs:
if exists( d ):
self._image_path = d
break
elif self.module is not None:
self._image_path = join( dirname( self.module.__file__ ), 'images' )
# Define the ImageEnumEditor class.
ImageEnumEditor = ToolkitEditorFactory
## EOF ########################################################################
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