X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/blobdiff_plain/e3cdfeea6d0a346fa449e8050617f320b6d2c9f3..5dd328ff6f454bf520aa9dbc5f4461eaaf4a4c1b:/gtk/gtk.lisp

diff --git a/gtk/gtk.lisp b/gtk/gtk.lisp
index c4423e3..c613886 100644
--- a/gtk/gtk.lisp
+++ b/gtk/gtk.lisp
@@ -20,7 +20,7 @@
 ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-;; $Id: gtk.lisp,v 1.70 2007-05-10 20:17:17 espen Exp $
+;; $Id: gtk.lisp,v 1.90 2008-02-29 18:34:19 espen Exp $
 
 
 (in-package "GTK")
@@ -50,83 +50,186 @@ (defun clg-version ()
 
 ;;;; Initalization and display handling
 
+(defparameter *event-polling-interval* 0.01)
+
+#?(or (featurep :clisp) (featurep :cmu) (and (sbcl>= 1 0 6) (sbcl< 1 0 15 6)))
+(defun decompose-time (time)
+  (multiple-value-bind (sec subsec) (truncate *event-polling-interval*)
+    (values sec (truncate (* subsec 1e6)))))
+
 (defbinding (gtk-init "gtk_parse_args") () boolean
   "Initializes the library without opening the display."
   (nil null)
   (nil null))
 
-(defparameter *event-poll-interval* 10000)
-
-(defun clg-init (&optional display)
-  "Initializes the system and starts event handling"
-  #+sbcl(when (and 
-	       (find-package "SWANK")
-	       (eq (symbol-value (find-symbol "*COMMUNICATION-STYLE*" "SWANK")) :spawn))
-	  (error "When running clg in Slime the communication style :spawn can not be used. See the README file and <http://common-lisp.net/project/slime/doc/html/slime_45.html> for more information."))
-
+(defun clg-init (&optional display multi-threading-p)
+  "Initializes the system and starts event handling."
   (unless (gdk:display-get-default)
     #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.8.0")
     (progn
       #+sbcl(sb-int:set-floating-point-modes :traps nil) 
       #+cmu(ext:set-floating-point-modes :traps nil))
 
-    (gdk:gdk-init)
-    (unless (gtk-init)
-      (error "Initialization of GTK+ failed."))
-    #+(or cmu sbcl)
-    (progn
-      (signal-connect (gdk:display-manager) 'display-opened
-       #'(lambda (display)
-	   (let ((handler (add-fd-handler 
-			   (gdk:display-connection-number display) 
-			   :input #'main-iterate-all)))
-	     (signal-connect display 'closed
-	      #'(lambda (is-error-p)
-		  (declare (ignore is-error-p))
-		  (remove-fd-handler handler))))))
-      (setq *periodic-polling-function* #'main-iterate-all)
-      (setq *max-event-to-sec* 0)
-      (setq *max-event-to-usec* *event-poll-interval*))
-    #+(and clisp readline)
-    ;; Readline will call the event hook at most ten times per second
-    (setf readline:event-hook #'main-iterate-all)
-    #+clisp      
-    ;; When running in Slime we need to hook into the Swank server
-    ;; to handle events asynchronously
-    (if (find-package "SWANK")
-	(let ((read-from-emacs (symbol-function (find-symbol "READ-FROM-EMACS" "SWANK")))
-	      (stream (funcall (find-symbol "CONNECTION.SOCKET-IO" "SWANK") (symbol-value (find-symbol "*EMACS-CONNECTION*" "SWANK")))))
-	  (setf (symbol-function (find-symbol "READ-FROM-EMACS" "SWANK"))
-	   #'(lambda ()
-	       (loop
-		(case (socket:socket-status (cons stream :input) 0 *event-poll-interval*)
-		  (:input (return (funcall read-from-emacs)))
-		  (:eof (read-char stream))
-		  (otherwise (main-iterate-all)))))))
-      #-readline(warn "Not running in Slime and Readline support is missing, so the Gtk main loop has to be invoked explicit."))
-
-    (gdk:display-open display)))
-
-
-
-#+sbcl	  
+     (gdk:gdk-init)
+     (unless (gtk-init)
+       (error "Initialization of GTK+ failed."))
+
+    (if (not multi-threading-p) 
+	(%init-async-event-handling display)
+      #+sb-thread(%init-multi-threaded-event-handling display)
+      #-sb-thread(error "Multi threading not supported on this platform")))
+  (gdk:ensure-display display t))
+
 (defun clg-init-with-threading (&optional display)
-  "Initializes the system and starts event handling"
-  (unless (gdk:display-get-default)
-    #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.8.0")
-    (progn
-      #+sbcl(sb-int:set-floating-point-modes :traps nil) 
-      #+cmu(ext:set-floating-point-modes :traps nil))
+  (clg-init display t))
+
+
+#?(and (sbcl>= 1 0 6) (sbcl< 1 0 15 6))
+;; A very minimal implementation of CLISP's socket-status
+(defun socket-status (socket seconds microseconds)
+  (sb-alien:with-alien ((read-fds (sb-alien:struct sb-unix:fd-set)))
+    (let ((fd (sb-sys:fd-stream-fd (car socket))))
+      (sb-unix:fd-zero read-fds)
+      (sb-unix:fd-set fd read-fds)
+
+      (let ((num-fds-changed
+	     (sb-unix:unix-fast-select
+	      (1+ fd) (sb-alien:addr read-fds) nil nil 
+	      seconds microseconds)))
+	(unless (or (not num-fds-changed) (zerop num-fds-changed))
+	  (if (peek-char nil (car socket) nil)
+	      :input
+	    :eof))))))
+
+(defun %init-async-event-handling (display)
+  (let ((style 
+	 #?(or (featurep :cmu) (sbcl< 1 0 6) (sbcl>= 1 0 15 6)) :fd-handler
+	 #?-(or (featurep :cmu) (sbcl< 1 0 6) (sbcl>= 1 0 15 6)) nil))
+    (when (and 
+	   (find-package "SWANK")
+	   (not (eq (symbol-value (find-symbol "*COMMUNICATION-STYLE*" "SWANK")) style)))
+      (error "When running clg in Slime, the communication style ~S must be used in combination with asynchronous event handling on this platform. See the README file and <http://common-lisp.net/project/slime/doc/html/slime_45.html> for more information." style)))
+
+  #?(or (featurep :cmu) (sbcl< 1 0 6) (sbcl>= 1 0 15 6))
+  (progn
+    (signal-connect (gdk:display-manager) 'display-opened
+     #'(lambda (display)
+	 (let ((fd (gdk:display-connection-number display)))
+	   (unless (< fd 0)
+	     (let ((handler (add-fd-handler 
+			     (gdk:display-connection-number display) 
+			     :input #'main-iterate-all)))
+	       (signal-connect display 'closed
+		#'(lambda (is-error-p)
+		    (declare (ignore is-error-p))
+		    (remove-fd-handler handler))))))))
+    (setq *periodic-polling-function* #'main-iterate-all)
+    #?(or (featurep :cmu) (sbcl< 1 0 6))
+    (multiple-value-setq (*max-event-to-sec* *max-event-to-usec*)
+      (decompose-time *event-polling-interval*))
+    #?(sbcl>= 1 0 15 6)
+    (setq *periodic-polling-period* *event-polling-interval*))
+  
+  #+(and clisp readline)
+  ;; Readline will call the event hook at most ten times per second
+  (setf readline:event-hook #'main-iterate-all)
+  
+  #?(or (featurep :clisp) (and (sbcl>= 1 0 6) (sbcl< 1 0 15 6)))
+  ;; When running in Slime we need to hook into the Swank server
+  ;; to handle events asynchronously.
+  (unless (and
+	   (find-package "SWANK")
+	   (let ((connection (symbol-value (find-symbol "*EMACS-CONNECTION*" "SWANK"))))
+	     (when connection
+	       (let ((read-from-emacs (symbol-function (find-symbol "READ-FROM-EMACS" "SWANK")))
+		     (stream (funcall (find-symbol "CONNECTION.SOCKET-IO" "SWANK") connection)))
+		 (multiple-value-bind (sec usec) 
+		     (decompose-time *event-polling-interval*)
+		   (setf 
+		    (symbol-function (find-symbol "READ-FROM-EMACS" "SWANK"))
+		    #'(lambda ()
+			(loop
+			 (case (socket-status (cons stream :input) sec usec)
+			   ((:input :eof) (return (funcall read-from-emacs)))
+			   (otherwise (main-iterate-all)))))))))))
+    #-(and clisp readline)
+    (warn "Asynchronous event handling not supported on this platform. An explicit main loop has to be started."))
+
+  (gdk:display-open display))
+
+#+sb-thread
+(progn
+  (defvar *main-thread* nil)
+
+  ;; Hopefully, when threading support is added to the Win32 port of
+  ;; SBCL in the future, this will work just out of the box.
+  #+win32
+  (let ((done (sb-thread:make-waitqueue))
+	(functions ())
+	(results ()))
+
+    ;; In Win32 all GDK calls have to be made from the main loop
+    ;; thread, so we add a timeout function which will poll for code and
+    ;; execute it.
+
+    (defun funcall-in-main (function)
+      (if (or 
+	   (not *main-thread*)
+	   (eq sb-thread:*current-thread* *main-thread*))
+	  (funcall function)
+	(gdk:with-global-lock
+	  (push function functions)
+ 	  (sb-thread:condition-wait done gdk:*global-lock*)
+ 	  (pop results))))
+
+    ;; Will lock REPL on error, need to be fixed!
+    (defun %funcall-in-main-poll ()
+      (when functions
+	(loop
+	 for n from 0
+	 while functions 
+	 do (push (funcall (pop functions)) results)
+	 finally (sb-thread:condition-notify done n)))
+      t))
+
+  (defmacro within-main-loop (&body body)
+    #-win32 `(gdk:with-global-lock ,@body)
+    #+win32 `(funcall-in-main #'(lambda () ,@body)))
+  
+  (defun %init-multi-threaded-event-handling (display)
+    (when (and 
+	   (find-package "SWANK")
+	   (not (eq (symbol-value (find-symbol "*COMMUNICATION-STYLE*" "SWANK")) :spawn)))
+      (error "When running clg in Slime, the communication style :spawn must be used in combination with multi threaded event handling. See the README file and <http://common-lisp.net/project/slime/doc/html/slime_45.html> for more information."))
+    (gdk:threads-init)	 
+    (let ((main-running (sb-thread:make-waitqueue)))
+      (gdk:with-global-lock
+       (setf *main-thread*
+        (sb-thread:make-thread 
+	 #'(lambda () 
+	     (gdk:with-global-lock 
+	       (gdk:display-open display)
+	       #+win32(gdk:timeout-add-with-lock (/ *event-poll-interval* 1000)
+		       #'%funcall-in-main-poll)
+	       (sb-thread:condition-notify main-running)
+	       (main)))
+	 :name "gtk event loop"))
+	(sb-thread:condition-wait main-running gdk:*global-lock*)))
+  
+    ;; We need to hook into the Swank server to protect calls to GDK properly.
+    ;; This will *only* protect code entered directly in the REPL.
+    (when (find-package "SWANK")
+      (let ((repl-eval-hook (find-symbol "*SLIME-REPL-EVAL-HOOKS*" "SWANK")))
+	(if repl-eval-hook
+	    (push #'(lambda (form) 
+		      (within-main-loop (eval form)))
+	     (symbol-value (find-symbol "*SLIME-REPL-EVAL-HOOKS*" "SWANK")))
+	  (warn "Your version of Slime does not have *SLIME-REPL-EVAL-HOOKS* so all calls to Gtk+ functions have to be explicit protected by wrapping them in a WITHIN-MAIN-LOOP form"))))))
+
+#-sb-thread
+(defmacro within-main-loop (&body body)
+  `(progn ,@body))
 
-    (gdk:gdk-init)
-    (gdk:threads-set-lock-functions)
-    (unless (gtk-init)
-      (error "Initialization of GTK+ failed."))
-    (sb-thread:make-thread 
-     #'(lambda () 
-	 (gdk:display-open display)
-	 (gdk:with-global-lock (main)))
-     :name "gtk event loop")))
 
 
 ;;; Generic functions 
@@ -243,7 +346,7 @@ (defun accel-groups-activate (object accelerator)
   (multiple-value-bind (key modifiers) (parse-accelerator accelerator)
     (%accel-groups-activate object key modifiers)))
 
-(defbinding accel-groups-from-object () (gslist accel-groups)
+(defbinding accel-groups-from-object () (gslist accel-group)
   (object gobject))
 
 (defbinding accelerator-valid-p (key &optional modifiers) boolean
@@ -435,6 +538,56 @@ (defbinding alignment-set-padding () nil
   (right unsigned-int))
 
 
+;;; Assistant
+
+#?(pkg-exists-p "gtk+-2.0" :atleast-version "2.10.0")
+(progn
+  (defbinding assistant-get-nth-page () widget
+    (assistant assistant)
+    (page-num int))
+  
+  (defbinding %assistant-insert-page () int
+    (assistant assistant)
+    (page widget)
+    (pos int))
+
+  (defun assistant-insert-page (assistant page position &rest child-args)    
+    (let ((pos (case position
+		 (:first 0)
+		 (:last -1)
+		 (t position))))
+      (prog1
+	  (%assistant-insert-page assistant page pos)
+	(init-child-slots assistant page child-args))))
+  
+  (defun assistant-append-page (assistant page &rest child-args)
+    (apply #'assistant-insert-page assistant page :last child-args))
+  
+  (defun assistant-prepend-page (assistant page &rest child-args)
+    (apply #'assistant-insert-page assistant page :first child-args))
+
+  (define-callback-marshal %assistant-page-func-callback int
+    ((current-page int)))
+
+  (defbinding assistant-set-forward-page-func (assistant function) nil
+    (assistant assistant)
+    (%assistant-page-func-callback callback)
+    ((register-callback-function function) pointer-data)
+    (user-data-destroy-callback callback))
+
+  (defbinding assistant-add-action-widget () nil
+    (assistant assistant)
+    (child widget))
+
+  (defbinding assistant-remove-action-widget () nil
+    (assistant assistant)
+    (child widget))
+
+  (defbinding assistant-update-buttons-state () nil
+    (assistant assistant)))
+
+
+
 ;;; Aspect frame
 
 
@@ -567,10 +720,13 @@ (defbinding check-menu-item-toggled () nil
 
 ;;; Color selection
 
-(defbinding (color-selection-is-adjusting-p
-	     "gtk_color_selection_is_adjusting") () boolean
+(defbinding color-selection-is-adjusting-p () boolean
   (colorsel color-selection))
 
+(defbinding (color-selection-previous-color
+	     "gtk_color_selection_get_previous_color") () nil
+  (colorsel color-selection)
+  ((make-instance 'gdk:color) gdk:color :in/return))
 
 
 ;;; Color selection dialog -- no functions
@@ -670,9 +826,10 @@ (defun dialog-response-id (dialog response &optional create-p error-p)
 
 (defun dialog-find-response (dialog id)
   "Finds a symbolic response given a numeric id"
-  (if (< id 0)
-      (int-to-response-type id)
-    (aref (user-data dialog 'responses) id)))
+  (cond 
+   ((not (numberp id)) id)
+   ((< id 0) (int-to-response-type id))
+   ((aref (user-data dialog 'responses) id))))
 
 
 (defmethod compute-signal-id ((dialog dialog) signal)
@@ -684,11 +841,15 @@ (defmethod compute-signal-function ((dialog dialog) signal function object args)
   (declare (ignore function object args))
   (let ((callback (call-next-method))
 	(id (dialog-response-id dialog signal)))
-    (if id
-	#'(lambda (dialog response)
-	    (when (= response id)
-	      (funcall callback dialog)))
-      callback)))
+    (cond
+     (id
+      #'(lambda (dialog response)
+	  (when (= response id)
+	    (funcall callback dialog))))
+     ((string-equal signal "response")
+      #'(lambda (dialog response)	  
+	  (funcall callback dialog (dialog-find-response dialog response))))
+     (callback))))
 
 (defbinding dialog-run () nil
   (dialog dialog))
@@ -735,6 +896,7 @@ (defun dialog-add-action-widget (dialog widget &optional (response widget)
     (when (functionp response)
        (signal-connect dialog signal response :object object :after after))
     (when default
+      (setf (widget-can-default-p widget) t)
       (%dialog-set-default-response dialog id))
     widget))
 
@@ -827,6 +989,10 @@ (defbinding entry-completion-set-match-func (completion function) nil
 (defbinding entry-completion-complete () nil
   (completion entry-completion))
 
+#?(pkg-exists-p "gtk+-2.0" :atleast-version "2.12.0")
+(defbinding entry-completion-get-completion-prefix () string
+  (completion entry-completion))
+
 #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0")
 (defbinding entry-completion-insert-prefix () nil
   (completion entry-completion))
@@ -1168,11 +1334,20 @@ (defbinding menu-tool-button-set-arrow-tooltip () nil
 ;;; Message dialog
 
 (defmethod allocate-foreign ((dialog message-dialog) &key (message-type :info)
-			     (buttons :close) flags transient-parent)
-  (%message-dialog-new transient-parent flags message-type buttons))
-
-
-(defmethod shared-initialize ((dialog message-dialog) names &key text 
+			     button buttons flags transient-parent)
+  (let ((stock-buttons 
+	 (cond
+	  ((and (not buttons) (not button))
+	   (case message-type
+	     (:question :yes-no)
+	     (t :ok)))
+	  ((listp buttons) :none)
+	  (t buttons))))
+    (%message-dialog-new transient-parent flags message-type stock-buttons)))
+
+
+(defmethod shared-initialize ((dialog message-dialog) names &rest initargs
+			      &key message-type buttons button text 
 			      #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0")
 			      secondary-text)
   (declare (ignore names))
@@ -1181,7 +1356,16 @@ (defmethod shared-initialize ((dialog message-dialog) names &key text
   #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0")
   (when secondary-text
     (message-dialog-format-secondary-markup dialog secondary-text))
-  (call-next-method))
+  (when (and (not buttons) (not button))
+    (loop
+     for (key value) on initargs by #'cddr
+     when (and (eq key :signal) (eq (first value) :close))
+     do (warn "Default button configuration changed from ~A to ~A" :close
+	 (if (eq message-type :question) :yes-no :ok))
+        (loop-finish)))
+  (if (typep buttons 'buttons-type)
+      (apply #'call-next-method dialog names (plist-remove :buttons initargs))
+    (call-next-method)))
 
 
 (defbinding %message-dialog-new () pointer
@@ -1269,10 +1453,13 @@ (defbinding toggle-button-toggled () nil
 ;;; Window
 
 (defmethod initialize-instance ((window window) &rest initargs 
-				&key accel-group accel-groups)
+				&key display accel-group accel-groups)
   (declare (ignore accel-group accel-groups))
   (prog1
-      (call-next-method)
+      (if display
+	  (apply #'call-next-method
+	   window :screen (gdk:display-get-default-screen (gdk:ensure-display display)) initargs)
+	(call-next-method))
     (initial-add window #'window-add-accel-group 
      initargs :accel-group :accel-groups)))
 
@@ -1313,13 +1500,14 @@ (defbinding window-set-default-size (window width height) int
 
 (defbinding %window-set-geometry-hints () nil
   (window window)
+  (widget (or widget null))
   (geometry gdk:geometry)
   (geometry-mask gdk:window-hints))
 
-(defun window-set-geometry-hints (window &key min-width min-height
+(defun window-set-geometry-hints (window &key widget min-width min-height
                                   max-width max-height base-width base-height
-				  width-inc height-inc min-aspect max-aspect
-				  (gravity nil gravity-p) min-size max-size)
+				  width-inc height-inc gravity
+				  aspect (min-aspect aspect) (max-aspect aspect))
   (let ((geometry (make-instance 'gdk:geometry 
 		   :min-width (or min-width -1)
 		   :min-height (or min-height -1)
@@ -1330,12 +1518,11 @@ (defun window-set-geometry-hints (window &key min-width min-height
 		   :width-inc (or width-inc 0)
 		   :height-inc (or height-inc 0)
 		   :min-aspect (or min-aspect 0)
-		   :max-aspect (or max-aspect 0)
-		   :gravity gravity))
+		   :max-aspect (or max-aspect 0)))
 	(mask ()))
-    (when (or min-size min-width min-height)
+    (when (or min-width min-height)
       (push :min-size mask))
-    (when (or max-size max-width max-height)
+    (when (or max-width max-height)
       (push :max-size mask))
     (when (or base-width base-height)
       (push :base-size mask))
@@ -1343,9 +1530,10 @@ (defun window-set-geometry-hints (window &key min-width min-height
       (push :resize-inc mask))
     (when (or min-aspect max-aspect)
       (push :aspect mask))
-    (when gravity-p
-      (push :win-gravity mask))
-    (%window-set-geometry-hints window geometry mask)))
+    (when gravity
+      (push :win-gravity mask)
+      (setf (gdk:geometry-gravity geometry) gravity))
+    (%window-set-geometry-hints window widget geometry mask)))
 
 (defbinding window-list-toplevels () (glist (copy-of window))
   "Returns a list of all existing toplevel windows.")
@@ -2340,9 +2528,46 @@   (defbinding (stock-set-translate-function "gtk_stock_set_translate_func")
     ((register-callback-function function) unsigned-int)
     (user-data-destroy-callback callback)))
 
+
+;;; Tooltip
+
+;; #?-(pkg-exists-p "gtk+-2.0" :atleast-version "2.12.0")
+;; (progn
+;;   (defbinding %tooltip-set-markup () nil
+;;     tooltip
+;;     (markup string))
+
+;;   (defbinding %tooltip-set-text () nil
+;;     tooltip
+;;     (text string))
+
+;;   (defbinding %tooltip-set-icon () nil
+;;     tooltip
+;;     (icon gdk:pixbuf))
+
+;;   (defbinding %tooltip-set-from-stock-icon () nil
+;;     tooltip
+;;     (stock-id string)
+;;     icon-size)
+
+;;   (defbinding %tooltip-set-custom () nil
+;;     tooltip
+;;     widget)
+
+;;   (defun tooltip-set (tooltip value &key (markup t) (icon-size :button))
+;;     (etypecase value
+;;       (string (if markup
+;; 		  (tooltip-set-markup tooltip value)
+;; 		(tooltip-set-text tooltip value)))
+;;       (pixbuf (tooltip-set-icon tooltip value))
+;;       (keyword (tooltip-set-icon-from-stock tooltip value icon-size))
+      
   
 
-;;; Tooltips
+;;; Tooltips 
+
+;; GtkTooltips has been deprecated in favor of the new tooltip API
+;; introduced in in GTK+ 2.12
 
 (defbinding tooltips-enable () nil
   (tooltips tooltips))
@@ -2438,8 +2663,6 @@ (defmethod allocate-foreign ((plug plug) &key id)
   (%plug-new (or id 0)))
 
 
-;;;; New stuff in Gtk+ 2.10
-
 ;;; Link button
 
 #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.10.0")
@@ -2450,3 +2673,64 @@   (defbinding link-button-set-uri-hook (function) pointer
     (%link-button-uri-callback callback)
     ((register-callback-function function) unsigned-int)
     (user-data-destroy-callback callback)))
+
+
+;;; Builder
+
+#?(pkg-exists-p "gtk+-2.0" :atleast-version "2.12.0")
+(progn
+  (defmethod initialize-instance ((builder builder) &key interface 
+				  (connect-signals t) (package *package*))
+    (call-next-method)
+    (etypecase interface
+      (null)
+      (string (builder-add-from-string builder interface))
+      (pathname (builder-add-from-file builder interface)))
+    (when connect-signals
+      (builder-connect-signals builder package)))
+
+
+  (defbinding builder-add-from-file () boolean
+   builder
+   pathname
+   (nil gerror-signal :out))
+
+  (defbinding builder-add-from-string () boolean
+   builder
+   (buffer string)
+   (-1 int) ; TODO: add gsize type
+   (nil gerror-signal :out))
+
+  (defbinding builder-get-object () gobject
+   builder
+   (name string))
+
+  (defbinding builder-get-objects () (gslist gobject)
+   builder)
+
+  (defun intern-with-package-prefix (name default-package)
+    (let ((pos (position #\: name)))
+      (if pos
+	  (intern 
+	   (string-upcase (subseq name (1+ pos)))
+	   (string-upcase (subseq name 0 pos)))
+	(intern (string-upcase name) default-package))))
+
+  (define-callback %builder-connect-function nil
+    (builder (object gobject) (signal-name string) (handler-name string)
+     (connect-object gobject) connect-flags (package user-data-id))
+    (format t "Connect signal ~A for ~A to ~A in default package ~A with flags ~A~%" signal-name object handler-name (find-user-data package) connect-flags)
+    (signal-connect 
+     object signal-name 
+     (intern-with-package-prefix handler-name (find-user-data package))
+     :object (or connect-object object) :after (find :after connect-flags)))
+
+  (defbinding %builder-connect-signals-full (builder package) nil
+    builder    
+    (%builder-connect-function callback)
+    (package user-data-id))
+
+  (defun builder-connect-signals (builder &optional (package *package*))
+    (with-user-data (id package)
+      (%builder-connect-signals-full builder id))))
+