30 lines
1.2 KiB
Racket
30 lines
1.2 KiB
Racket
#lang scribble/doc
|
|
@(require "common.rkt")
|
|
|
|
@tools-title["module-language-tools"]
|
|
|
|
@language-info-def[drracket:toolbar-buttons]{
|
|
If the result of @racket[read-language] for a language is a function,
|
|
DrRacket will query it to determine if there are any new toolbar
|
|
buttons to be used when editing files in this language (when
|
|
DrRacket's language is set to the Module language).
|
|
}
|
|
|
|
Specifically, DrRacket will pass @indexed-racket['drracket:toolbar-buttons]
|
|
to the function and expect back a value matching this contract:
|
|
@racketblock[(or/c (listof (list/c string?
|
|
(is-a?/c bitmap%)
|
|
(-> (is-a?/c drracket:unit:frame<%>) any)))
|
|
#f)]
|
|
which is then used to create new toolbar buttons, one for each list in the
|
|
first. The string is the label on the button; the bitmap is the icon
|
|
(it should be 16x16), and the function is called when the button is clicked.
|
|
If the result is @racket[#f], then no toolbar buttons are created.
|
|
|
|
If @racket['drracket:toolbar-buttons] is not recognized, DrRacket will also
|
|
pass @indexed-racket['drscheme:toolbar-buttons]; this is for backwards
|
|
compatibility and new code should not use it.
|
|
|
|
|
|
@(tools-include "module-language-tools")
|