Class

Summary

A subclass of simple-layout that displays only one of its children at a time, and provides functionality for switching the displayed child to one of the other children.

Superclasses

simple-layout

Initargs

:visible-child

The currently visible pane from the children.

Readers

switchable-layout-visible-child

Description

The switchable-layout has a description which is its list of children. The argument visible-child specifies the initially visible child (which defaults to the first of the children).

switchable-layout inherits all of its layout behavior from simple-layout as it only ever lays out one child at a time.

Example

(setq children (list

                (make-instance 'capi:push-button

                               :text "Press Me")

                (make-instance 'capi:list-panel

                               :items '(1 2 3 4 5))))

(setq layout (capi:contain

              (make-instance

               'capi:switchable-layout

               :description children)

              :process nil))

(setf (capi:switchable-layout-visible-child layout)

      (second children))

(setf (capi:switchable-layout-visible-child layout)

      (first children))

There is a further example in the file examples/capi/layouts/switchable.lisp .

See also

layout
switchable-layout-switchable-children