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Command Table Menu Inheritance
When do menu actually inherit commands from command-tables?
I ignored the following minor inconvenience so far, but
now that CLIM2.0 is getty much more stable everywhere, may
be this can be cleaned or clarified:
"Is the only reliable way to get commands to come up
predictably in the menu-bar to list them one
by one, is that to be expected?"
Below is an example a friend passed to me that does
not seem to inherit a command where I thought it should.
(We assume the :MENU option defaults to T as described
in the documentation.) Any comment?
Also we experience strange effects when recompiling application
frame definitions with additional commands, or when dynamically
adding new definitions in two versions of CLIM2.0 we tried.
Even when restarting a new frame (after destroying the previous one)
we do not get the new commands, except those explicitely listed
one by one. The example below can be used to test these cases as well.
Olivier Clarisse
;;; -*- Mode: LISP; Syntax: ANSI-Common-lisp; Package: CLIM-USER ; Base: 10 -*-
(in-package "CLIM-USER")
;;
;; Define an application frame1
;;
;; It supports a default command table: frame1-command-table
;;
(define-application-frame frame1 ()
()
(:pointer-documentation t)
(:panes
(design-area :application))
(:layouts
(main
design-area)))
;;
;; Define a command for the frame1-command-table
;;
(define-frame1-command (com-exit-frame1 :menu "Exit Frame 1")
()
(frame-exit *application-frame*))
;;
;; Define a second application frame2
;;
;; Tell it to inherit from the frame1 command table
;;
(define-application-frame frame2 ()
()
(:pointer-documentation t)
(:panes
(design-area :application))
(:layouts
(main
design-area))
(:command-table (frame2
:inherit-from (frame1))))
;;
;; Define a command for the frame2 command table
;;
(define-frame2-command (com-exit-frame2 :menu "Exit Frame 2")
()
(frame-exit *application-frame*))
;;
;; Run the frame
;;
(defun run-frame2 ()
(let ((frame (make-application-frame 'frame2)))
(when frame
(mp:process-run-function "Frame2" #'run-frame-top-level frame))))
;;
;; The second frame (frame2) should now have two commands:
;; "Exit Frame 1" from its commands table and "Exit Frame 2"
;; from the inherited command table. WELL it only has the second
;; command in Allegro CLIM2.0 beta and in Lispworks CLIM2.0
;; (Version 3.2.21 beta 4).
;;
#|
;; Here is a way to force both commands in, why is this necessary?
(define-application-frame frame2 ()
()
(:pointer-documentation t)
(:panes
(design-area :application))
(:layouts
(main
design-area))
(:command-table (frame2
:inherit-from (frame1)
:menu (("Exit1" :command (com-exit-frame1) :documentation "Inherited exit")
("Exit2" :command (com-exit-frame2))))))
|#
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