Re: Read-only text scrollable dialog item: HOW?

[bill@cambridge.apple.com (Bill St. Clair)]

At 3:00 AM 5/22/95, enrico.ballarin-dolfin@svusenet.ubs.ch wrote:
>Hi!
>
>How can I define a read-only scrollable dialog item with following behaviour:
>
>- you can every time assign (or modify) text to the dialog item by program.
>- it should be possible to assign a text longer than 32K.
>- the user cannot write, edit or select anything in the dialog item.
>- the user can scroll the text in the dialog item.
>
>Basically this means a dialog item similar e.g. as that in "Disinfectant
>3.6" Help.
>
>Thanks in advance!

This should get you started:

---------------------------------------------------------------------

; text-display-dialog-item.lisp
;
; Like scrolling-fred-dialog-item, but doesn't allow typing or selection.

(eval-when (:compile-toplevel :execute :load-toplevel)
  (require :scrolling-fred-dialog-item))        ; in the library folder

(defclass text-display-dialog-item (scrolling-fred-dialog-item)
  ())

(defmethod key-handler-p ((w text-display-dialog-item))
  nil)

(defmethod view-click-event-handler ((w text-display-dialog-item) where)
  (declare (ignore where))
  nil)

; (method install-view-in-window :after (key-handler t)) calls this
(defmethod add-key-handler ((w text-display-dialog-item) &optional dialog)
  (declare (ignore dialog))
  nil)

(defmethod view-cursor ((w text-display-dialog-item) where)
  (declare (ignore where))
  *arrow-cursor*)

#|
(defparameter *w* (make-instance 'window :view-size #@(500 200)))

(defparameter *f* (make-instance 'text-display-dialog-item
                                 :view-container *w*
                                 :view-size #@(450 150)))

; Can't use a :filename arg to make-instance above due to an
; MCL bug
(buffer-insert-file (fred-buffer *f*)
                    "ccl:library;scrolling-fred-dialog-item.lisp")
                    

|#