Source code for traitsui.editors.image_enum_editor
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# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
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#
# Thanks for using Enthought open source!
""" Defines the image enumeration editor factory for all traits user interface
toolkits.
"""
from os import getcwd
from os.path import join, dirname, exists
import sys
from traits.api import Module, Type, Str, observe
from traitsui.editors.enum_editor import EnumEditor
[docs]class ImageEnumEditor(EnumEditor):
"""Editor factory for image enumeration editors."""
# -------------------------------------------------------------------------
# Trait definitions:
# -------------------------------------------------------------------------
#: Prefix to add to values to form image names:
prefix = Str()
#: Suffix to add to values to form image names:
suffix = Str()
#: Path to use to locate image files:
path = Str()
#: Class used to derive the path to the image files:
klass = Type()
#: Module used to derive the path to the image files:
module = Module
[docs] def init(self):
"""Performs any initialization needed after all constructor traits
have been set.
"""
super().init()
self._update_path()
@observe("path, klass, module")
def _update_path(self, event=None):
"""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")
# This alias is deprecated and will be removed in TraitsUI 8.
ToolkitEditorFactory = ImageEnumEditor