;; Common Lisp bindings for GTK+ v2.0
-;; Copyright (C) 1999-2000 Espen S. Johnsen <espejohn@online.no>
+;; Copyright (C) 1999-2000 Espen S. Johnsen <esj@ostud.cs.uit.no>
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-;; $Id: gtkobject.lisp,v 1.2 2000/08/15 18:20:07 espen Exp $
+;; $Id: gtkobject.lisp,v 1.7 2000/11/09 20:30:16 espen Exp $
(in-package "GTK")
+
+;;;; Initializing
+
+(setf (alien-type-name 'pointer) "gpointer")
+
+
;;;; Misc utils
(defun name-to-string (name)
(let ((arg (arg-new 0)))
(setf (arg-name arg) name)
(object-get-arg object arg)
- (let ((type (type-from-number (arg-type arg))))
+ (let* ((type-number (arg-type arg))
+ (type (type-from-number type-number)))
(%arg-reset arg)
+ (setf (arg-type arg) type-number)
(setf (arg-value arg type) value)
(object-set-arg object arg)
(arg-free arg t))))
value)
-;;;; Callback and user data mechanism
-
-(declaim (fixnum *user-data-count*))
-
-(defvar *user-data* (make-hash-table))
-(defvar *user-data-count* 0)
-
-(defun register-user-data (object &optional destroy-function)
- (check-type destroy-function (or null symbol function))
-; (incf *user-data-count*)
- (setq *user-data-count* (the fixnum (1+ *user-data-count*)))
- (setf
- (gethash *user-data-count* *user-data*)
- (cons object destroy-function))
- *user-data-count*)
-
-
-(defun find-user-data (id)
- (check-type id fixnum)
- (multiple-value-bind (user-data p) (gethash id *user-data*)
- (values (car user-data) p)))
-
-
-(defun register-callback-function (function)
- (check-type function (or null symbol function))
- ; We treat callbacks just as ordinary user data
- (register-user-data function))
-
-(defun callback-trampoline (callback-id nargs arg-array)
- (declare (fixnum callback-id nargs))
- (let* ((return-arg (unless (null-pointer-p arg-array)
- (arg-array-ref arg-array nargs)))
- (return-type (if return-arg
- (type-from-number (arg-type return-arg))
- nil))
- (args nil)
- (callback-function (find-user-data callback-id)))
-
- (dotimes (n nargs)
- (push (arg-value (arg-array-ref arg-array (- nargs n 1))) args))
-
- (labels ((invoke-callback ()
- (restart-case
- (unwind-protect
- (let ((return-value (apply callback-function args)))
- (when return-type
- (setf (return-arg-value return-arg) return-value))))
-
- (continue nil :report "Return from callback function"
- (when return-type
- (format
- *query-io*
- "Enter return value of type ~S: "
- return-type)
- (force-output *query-io*)
- (setf
- (return-arg-value return-arg)
- (eval (read *query-io*)))))
- (re-invoke nil :report "Re-invoke callback function"
- (invoke-callback)))))
- (invoke-callback))))
-
-
-(defun destroy-user-data (id)
- (check-type id fixnum)
- (let ((user-data (gethash id *user-data*)))
- (when (cdr user-data)
- (funcall (cdr user-data) (car user-data))))
- (remhash id *user-data*))
-
-
-(defvar *callback-marshal* (system:foreign-symbol-address "callback_marshal"))
-(defvar *destroy-marshal* (system:foreign-symbol-address "destroy_marshal"))
-
-(defun after-gc-hook ()
- (setf
- (extern-alien "callback_trampoline" system-area-pointer)
- (make-pointer (kernel:get-lisp-obj-address #'callback-trampoline))
- (extern-alien "destroy_user_data" system-area-pointer)
- (make-pointer (kernel:get-lisp-obj-address #'destroy-user-data))))
-
-(pushnew 'after-gc-hook ext:*after-gc-hooks*)
-(after-gc-hook)
-
-
-
-;;;; Main loop
+;;;; Main loop, timeouts and idle functions
(declaim (inline events-pending-p main-iteration))
(define-foreign ("gtk_events_pending" events-pending-p) () boolean)
+(define-foreign get-current-event () gdk:event)
+
(define-foreign main-do-event () nil
(event gdk:event))
(main-iteration nil)
(main-iterate-all)))
-(system:add-fd-handler (gdk:event-poll-fd) :input #'main-iterate-all)
-(setq lisp::*periodic-polling-function* #'main-iterate-all)
-(setq lisp::*max-event-to-sec* 0)
-(setq lisp::*max-event-to-usec* 1000)
-
-
-
-;;;; Signals
-
-(define-foreign %signal-emit-stop () nil
- (object object)
- (signal-id unsigned-int))
-
-(define-foreign %signal-emit-stop-by-name (object signal) nil
- (object object)
- ((name-to-string signal) string))
-
-(defun signal-emit-stop (object signal)
- (if (numberp signal)
- (%signal-emit-stop object signal)
- (%signal-emit-stop-by-name object signal)))
+(define-foreign ("gtk_timeout_add_full" timeout-add)
+ (interval function) unsigned-int
+ (interval (unsigned 32))
+ (0 unsigned-long)
+ (*callback-marshal* pointer)
+ ((register-callback-function function) unsigned-long)
+ (*destroy-marshal* pointer))
-(define-foreign %signal-connect-full
- (object signal function after) unsigned-int
- (object object)
- ((name-to-string signal) string)
+(define-foreign timeout-remove () nil
+ (timeout-handler-id unsigned-int))
+
+(define-foreign ("gtk_idle_add_full" idle-add)
+ (function &optional (priority 200)) unsigned-int
+ (priority int)
(0 unsigned-long)
(*callback-marshal* pointer)
((register-callback-function function) unsigned-long)
- (*destroy-marshal* pointer)
- (nil boolean)
- (after boolean))
-
-(defun signal-connect (object signal function
- &key after ((:object callback-object)))
- (let* ((callback-object (if (eq callback-object t)
- object
- callback-object))
- (callback-function
- (if callback-object
- #'(lambda (&rest args) (apply function callback-object args))
- function)))
- (%signal-connect-full object signal callback-function after)))
-
-(define-foreign signal-disconnect () nil
- (object object)
- (handler unsigned-int))
+ (*destroy-marshal* pointer))
-(define-foreign signal-handler-block () nil
- (object object)
- (handler unsigned-int))
+(define-foreign idle-remove () nil
+ (idle-handler-id unsigned-int))
+
+
+(system:add-fd-handler (gdk:event-poll-fd) :input #'main-iterate-all)
+(setq lisp::*periodic-polling-function* #'main-iterate-all)
+(setq lisp::*max-event-to-sec* 0)
+(setq lisp::*max-event-to-usec* 1000)
-(define-foreign signal-handler-unblock () nil
- (object object)
- (handler unsigned-int))
;;;; Metaclass used for subclasses of object
~mdw / clg / blobdiff