def _open_changed(self):
"""Handles the user clicking the 'Open...' button."""
file_name = open_file(extensions=ImageInfo(),
filter=filters,
id=demo_id)
if file_name != '':
self.file_name = file_name
# Issue related to the demo warning: enthought/traitsui#953
from traits.api import HasTraits, File, Button
from traitsui.api import View, HGroup, Item
from traitsui.file_dialog import open_file, FileInfo, TextInfo, ImageInfo
# -- FileDialogDemo Class -------------------------------------------------
# Demo specific file dialig id:
demo_id = 'traitsui.demo.standard_editors.file_dialog.multiple_info'
# The list of file dialog extensions to use:
extensions = [FileInfo(), TextInfo(), ImageInfo()]
class FileDialogDemo(HasTraits):
# The name of the selected file:
file_name = File()
# The button used to display the file dialog:
open = Button('Open...')
# -- Traits View Definitions ----------------------------------------------
traits_view = View(
HGroup(
Item('open', show_label=False),