Simple Attribute Alias Example

An example of using an Enaml alias to expose an internal attribute.

This example is similar to ‘simple_widget_alias.enaml’, but it shows how the developer can exert more control over a widget by exposing individual attributes instead of entire widgets.

Tip

To see this example in action, download it from simple_attribute_alias and run:

$ enaml-run simple_attribute_alias.enaml

Screenshot

Example Enaml Code

#------------------------------------------------------------------------------
# Copyright (c) 2013, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
#------------------------------------------------------------------------------
""" An example of using an Enaml alias to expose an internal attribute.

This example is similar to 'simple_widget_alias.enaml', but it shows
how the developer can exert more control over a widget by exposing
individual attributes instead of entire widgets.

<< autodoc-me >>
"""
from enaml.widgets.api import Window, Container, PushButton


enamldef Content(Container):
    """ The primary application content.

    This 'button_foreground' alias provides access to the internal
    push button's foreground color.

    """
    alias button_foreground: button.foreground
    PushButton: button:
        text = 'Default Button Text'


enamldef Main(Window):
    """ The main application window.

    This window uses the 'button_foreground' alias of the central
    content to bind to its internal push button's foreground color.

    """
    title = 'Simple Attribute Alias'
    Content:
        button_foreground = 'blue'