15 drracket:language-configuration
This can only be called after all of the tools initialization phases have completed.
Returns the list of all of the languages installed in DrRacket.
Adds language to the languages offered by DrRacket.
If
allow-executable-creation? is
#f, then
choosing the
Create Executable... menu item results
in a dialog box saying that executable creation is disabled.
If it is
#t, then the
create-executable
is called when that menu item is selected (after checking
to make sure the file is saved).
This struct pairs together a language and some specific settings
for the language.
The settings is a language-specific record that holds a
value describing a parameterization of the language.
The show-welcome? argument determines if
if a “Welcome to DrRacket” message and some
natural language buttons are shown.
The language-settings-to-show argument
must be some default language settings that the dialog
is initialized to.
If unsure of a default, the currently set language
in the user’s preferences can be obtained via:
The parent argument is used as the parent
to the dialog.
The result if #f when the user cancells the dialog, and
the selected language if they hit ok.
This procedure accepts two parent panels and
fills them with the contents of the language dialog.
It is used to include language configuration controls
in some larger context in another dialog.
The panel argument is the main panel where the
language controls will be placed.
The function adds buttons to the button-panel
to revert a language to its default settings and to
show the details of a language.
The language-setting is the default
language to show in the dialog.
The re-center argument is used when the Show Details
button is clicked. If that argument is a top-level-window<%>,
the Show Details callback will recenter the window each time
it is clicked. Otherwise, the argument is not used.
ok-handler is a function that is in charge of interfacing the OK
button. It should accept a symbol message: 'enable and
'disable to toggle the button, and 'execute to run
the desired operation. (The language selection dialog also uses an
internal 'enable-sync message.)
The first two results of the function return a language object
and a settings for that language, as chosen by the user using the dialog.
The final function should be called when keystrokes are typed in the
enclosing frame. It is used to implement the shortcuts that choose the
two radio buttons in the language dialog.