TR: capi:list-panel & callbacks

Here is the skeleton of the code I use.
Thanks.

Sebastien.


;; CODE BEGIN
;; ----------

(capi:define-interface class-gui-class-viewer ()
   (
      (package-timer :accessor package-timer)
      )
   (:panes
      (packages-pane capi:list-panel
         :accessor packages-pane
         :print-function #'(lambda (item) (name item))
         :interaction :extended-selection
         :selection-callback 'cb-package-change
         :extend-callback 'cb-package-change
         :retract-callback 'cb-package-change
         :callback-type :interface
         )

       ...

      )
   (:layouts

       ...

      )
   (:default-initargs
      :title "Class Viewer"
      ))



(defmethod cb-package-change ((gui class-gui-class-viewer))
   (mp:schedule-timer-relative-milliseconds (package-timer gui) 50))


(defmethod cb-view-package-classes ((gui class-gui-class-viewer))
   (mp:process-run-function "View Package Classes" nil 'view-package-classes
gui))


(defmethod view-package-classes ((gui class-gui-class-viewer))
   (let* ((classes (make-hash-table :test 'equal))
         (roots nil)
         )


      ...  heavy calculations are done here
      ...  plus the graph pane update below which involved intensive cpu


      (capi:execute-with-interface gui
         #'(lambda (gui)
            (setf (capi:graph-pane-roots (class-graph gui)) roots)
            (setf (capi:collection-items (methods-pane gui)) ())
            (setf (capi:display-pane-text (display-text gui)) "")
            )
         gui)
      ))


(defun make-applix ()
  (let ((gui (make-instance 'class-gui-class-viewer)))
    (setf (package-timer gui) (mp:make-timer 'cb-view-package-classes gui))
    (capi:display gui)
    ))