► |  | Embedded GUI: Widgets within editor<%>

1 | Containers
2 | Controls
3 | Control Snips
4 | Helpers
5 | Snip Functions

▼ | 3 | Control Snips

3.1 | snip-wrapper%
3.2 | text-button-snip%
3.3 | button-snip%
3.4 | toggle-button-snip%

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toggle-button-snip% : class?
superclass: snip%

A check-box%-like control that a user can toggle between checked and unchecked states.

(new toggle-button-snip% |  | [images-off images-off] |
|  | [images-on images-on] |
|  | [turn-on turn-on] |
|  | [turn-off turn-off] |
| [ | [state state]]) |

→ (is-a?/c toggle-button-snip%)
images-off : (cons/c path-string? path-string?)
images-on : (cons/c path-string? path-string?)
turn-on : ((is-a?/c toggle-button-snip%) (is-a?/c event%) . -> . void?)
turn-off : ((is-a?/c toggle-button-snip%) (is-a?/c event%) . -> . void?)
state : (symbols 'on 'off) = 'on

The images-off argument is a pair filenames to be load as the button-label image, where the first is the image for when the button is at rest, and the second is the image for the button while its pressed – in both cases when the button is not checked by the user. The images-on argument similarly determines the images for then the button is checked.

The turn-on and turn-off callbacks are invoked when the button changes to checked or unchecked, respectively.

The state argument determines whether the button is initially checked.
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