Mdi Area Example

An example of the MdiArea and MdiWindow widget.

Demonstrate how to use the MdiArea which provides an area in which multiple subwindows can be displayed (MdiWindow instances). Sub windows can be automatically tiled or cascaded.

Tip

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

$ enaml-run mdi_area.enaml

Screenshot

Example Enaml Code

#------------------------------------------------------------------------------
# Copyright (c) 2013-2018, 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 the `MdiArea` and `MdiWindow` widget.

Demonstrate how to use the MdiArea which provides an area in which multiple
subwindows can be displayed (MdiWindow instances). Sub windows can be
automatically tiled or cascaded.

<< autodoc-me >>
"""
from __future__ import print_function
from enaml.widgets.api import (
    Window, Container, MdiArea, MdiWindow,
    PushButton, CheckBox, Field, Html, GroupBox
    )
from enaml.core.api import Include
from enaml.layout.api import vbox, hbox, align, spacer


enamldef MdiContent(MdiWindow):
    attr num: int
    title = 'Window %d' % num
    Container:
        constraints = [
            vbox(
                hbox(pb, cb, fld),
                html,
            ),
            align('v_center', pb, cb, fld),
        ]
        PushButton: pb:
            text = 'Button'
        CheckBox: cb:
            text = 'Activate'
        Field: fld:
            pass
        Html: html:
            source = '<h1>New window %d</h1>'%num


enamldef Main(Window): main:
    attr count: int = 1
    attr mdi_visible = True
    Container:
        constraints = [
            vbox(hbox(add_btn, vis, tile, cascade, spacer),
                 mdi
            )]
        PushButton: add_btn:
            text = 'Add New MDI Window'
            clicked ::
                win = MdiContent(num=count, visible=mdi_visible)
                dyn_win.objects.append(win)
                main.count += 1

        PushButton: vis:
            text << 'Hide all' if mdi_visible else 'Show all'
            clicked ::
                for w in mdi.mdi_windows():
                    if mdi_visible:
                        w.hide()
                    else:
                        w.show()
                main.mdi_visible = not mdi_visible

        PushButton: tile:
            text << 'Tile subwindows'
            clicked ::
                mdi.tile_mdi_windows()

        PushButton: cascade:
            text << 'Cascade subwindows'
            clicked ::
                mdi.cascade_mdi_windows()

        MdiArea: mdi:
            MdiContent:
                num = 0
            Include: dyn_win:
                pass