X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/blobdiff_plain/86d9d6ab4254f6f17fe7fbd15bee6b869ff8a145..de8516caf7f9031a1cbffa1382c4a3f97a892350:/glib/gobject.lisp

diff --git a/glib/gobject.lisp b/glib/gobject.lisp
index 09b7cf7..6e4e4e0 100644
--- a/glib/gobject.lisp
+++ b/glib/gobject.lisp
@@ -1,5 +1,5 @@
 ;; Common Lisp bindings for GTK+ v2.0
-;; Copyright (C) 2000 Espen S. Johnsen <espejohn@online.no>
+;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.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
@@ -15,109 +15,82 @@
 ;; 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: gobject.lisp,v 1.2 2000-08-23 21:40:38 espen Exp $
+;; $Id: gobject.lisp,v 1.11 2002-03-24 12:50:30 espen Exp $
 
 (in-package "GLIB")
 
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
-  (defclass gobject (gtype)
+  (defclass gobject (ginstance)
     ()
-    (:metaclass gtype-class)
-    (:alien-name "GObject"))
-
-  (defclass gobject-class (gtype-class)))
-
-
-;;;; Reference counting for gobject
-
-;; Specializing reference-instance and unreference-instance on gobject
-;; is not really necessary but done for efficiency
-
-(defmethod reference-instance ((object gobject))
-  (%object-ref object)
-  object)
-
-(defmethod unreference-instance ((object gobject))
-  (%object-unref object))
-
-(deftype-method alien-ref gobject (type-spec)
-  (declare (ignore type-spec))
-  '%object-ref)
-
-(deftype-method alien-unref gobject (type-spec)
-  (declare (ignore type-spec))
-  '%object-unref)
+    (:metaclass ginstance-class)
+    (:alien-name "GObject")
+    (:copy %object-ref)
+    (:free %object-unref)))
+
+(defmethod initialize-instance ((object gobject) &rest initargs)
+  (declare (ignore initargs))
+  (setf  (slot-value object 'location) (%gobject-new (type-number-of object)))
+  (call-next-method))
 
-(define-foreign %object-ref () pointer
-  (object (or gobject pointer)))
+(defbinding (%gobject-new "g_object_new") () pointer
+  (type type-number)
+  (nil null))
 
-(define-foreign %object-unref () nil
-  (object (or gobject pointer)))
 
+(defbinding %object-ref (type location) pointer
+  (location pointer))
 
-;; Parameter stuff not yet implemented
+(defbinding %object-unref (type location) nil
+  (location pointer))
 
-; (define-foreign object-set-param () nil
-;   (object gobject)
-;   (name string)
-;   (value gvalue))
 
-; (define-foreign object-get-param () nil
-;   (object gobject)
-;   (name string)
-;   (value gvalue :out))
+(defun object-ref (object)
+  (%object-ref nil (proxy-location object)))
 
-; (define-foreign object-queue-param-changed () nil
-;   (object gobject)
-;   (name string))
+(defun object-unref (object)
+  (%object-unref nil (proxy-location object)))
 
 
-;;;; User data mechanism
 
-(declaim (fixnum *user-data-count*))
+;;;; Property stuff
 
-(defvar *user-data* (make-hash-table))
-(defvar *user-data-count* 0)
+(defbinding %object-set-property () nil
+  (object gobject)
+  (name string)
+  (value gvalue))
 
-;; Until the callback mechanism is moved to glib, the value of
-;; *destroy-marshal* is set in gtkobject.lisp
-(defvar *destroy-marshal* nil)
+(defbinding %object-get-property () nil
+  (object gobject)
+  (name string)
+  (value gvalue))
 
-(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*)
+(defbinding %object-notify () nil
+  (object gobject)
+  (name string))
 
-(defun find-user-data (id)
-  (check-type id fixnum)
-  (multiple-value-bind (user-data p) (gethash id *user-data*)
-    (values (car user-data) p)))
+(defbinding object-freeze-notify () nil
+  (object gobject))
 
-(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*))
+(defbinding object-thaw-notify () nil
+  (object gobject))
 
-(define-foreign %object-set-qdata-full () nil
+(defbinding %object-set-qdata-full () nil
   (object gobject)
   (id quark)
   (data unsigned-long)
   (destroy-marshal pointer))
 
+
+;;;; User data
+
 (defun (setf object-data) (data object key &key (test #'eq))
   (%object-set-qdata-full
    object (quark-from-object key :test test)
-   (register-user-data data) *destroy-marshal*)
+   (register-user-data data) *destroy-notify*)
   data)
 
-(define-foreign %object-get-qdata () unsigned-long
+(defbinding %object-get-qdata () unsigned-long
   (object gobject)		 
   (id quark))
 
@@ -127,31 +100,173 @@ (defun object-data (object key &key (test #'eq))
 
 
 
-;;;; Methods for gobject-class
+;;;; Metaclass used for subclasses of gobject
 
-(defmethod shared-initialize ((class gobject-class) names &rest initargs
-			      &key type-init name)
-  (declare (ignore initargs names))
-  (let ((alien
-	 (alien::%heap-alien
-	  (alien::make-heap-alien-info
-	   :type (alien::parse-alien-type '(function (unsigned 32)))
-	   :sap-form (system:foreign-symbol-address
-		      (or
-		       (first type-init)
-		       (default-alien-func-name
-			 (format
-			  nil "~A_get_type" (or name (class-name class))))))))))
-    (alien:alien-funcall alien))
-  (call-next-method))
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (defclass gobject-class (ginstance-class))
+
+  (defclass direct-gobject-slot-definition (direct-virtual-slot-definition)
+    ((pname :reader slot-definition-pname)))
 
+  (defclass effective-gobject-slot-definition
+    (effective-virtual-slot-definition)))
 
-; (define-foreign object-class-install-param () nil
+  
+
+; (defbinding object-class-install-param () nil
 ;   (class pointer)
 ;   (id unsigned-int)
 ;   (parameter parameter))
 
-; (define-foreign object-class-find-param-spec () parameter
+; (defbinding object-class-find-param-spec () parameter
 ;   (class pointer)
 ;   (name string))
 
+(defun signal-name-to-string (name)
+  (substitute #\_ #\- (string-downcase (string name))))
+
+(defmethod initialize-instance :after ((slotd direct-gobject-slot-definition)
+				       &rest initargs &key pname)
+  (declare (ignore initargs))
+  (when pname
+    (setf
+     (slot-value slotd 'pname)
+     (signal-name-to-string (slot-definition-name slotd)))))
+
+(defmethod direct-slot-definition-class ((class gobject-class) initargs)
+  (case (getf initargs :allocation)
+    (:property (find-class 'direct-gobject-slot-definition))
+    (t (call-next-method))))
+
+(defmethod effective-slot-definition-class ((class gobject-class) initargs)
+  (case (getf initargs :allocation)
+    (:property (find-class 'effective-gobject-slot-definition))
+    (t (call-next-method))))
+
+(defmethod compute-virtual-slot-accessors
+    ((class gobject-class) (slotd effective-gobject-slot-definition)
+     direct-slotds)
+  (with-slots (type) slotd
+    (let ((pname (slot-definition-pname (first direct-slotds)))
+	  (type-number (find-type-number type)))
+      (list
+       #'(lambda (object)
+	   (with-gc-disabled
+	     (let ((gvalue (gvalue-new type-number)))
+	       (%object-get-property object pname gvalue)
+	       (unwind-protect
+		   (funcall
+		    (intern-reader-function type) gvalue +gvalue-value-offset+)
+		 (gvalue-free gvalue t)))))
+       #'(lambda (value object)
+	   (with-gc-disabled
+  	     (let ((gvalue (gvalue-new type-number)))
+	       (funcall
+		(intern-writer-function type)
+		value gvalue +gvalue-value-offset+)
+	       (%object-set-property object pname gvalue)
+	       (funcall
+		(intern-destroy-function type)
+		gvalue +gvalue-value-offset+)
+	       (gvalue-free gvalue nil)
+	       value)))))))
+
+(defmethod validate-superclass ((class gobject-class)
+				(super pcl::standard-class))
+;  (subtypep (class-name super) 'gobject)
+  t)
+
+
+
+;;;;
+
+(defbinding %object-class-list-properties () pointer
+  (class pointer)
+  (n-properties unsigned-int :out))
+
+(defun query-object-class-properties (type-number &optional
+				      inherited-properties)
+  (let ((class (type-class-ref type-number)))
+    (multiple-value-bind (array length)
+	(%object-class-list-properties class)
+      (unwind-protect
+	  (let ((all-properties
+		 (map-c-array 'list #'identity array 'param length)))
+	    (if (not inherited-properties)
+		(delete-if
+		 #'(lambda (param)
+		     (not (eql type-number (param-owner-type param))))
+		 all-properties)
+	      all-properties))
+	(deallocate-memory array)))))
+
+
+(defun default-slot-name (name)
+  (intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
+
+(defun default-slot-accessor (class-name slot-name type)
+  (intern
+   (format
+    nil "~A-~A~A" class-name slot-name
+    (if (eq 'boolean type) "-P" ""))))
+
+(defun expand-gobject-type (type-number &optional options
+			    (metaclass 'gobject-class))
+  (let* ((supers (cons (supertype type-number) (implements type-number)))
+	 (class  (type-from-number type-number))
+	 (override-slots (getf options :slots))
+	 (expanded-slots
+	  (mapcar
+	   #'(lambda (param)
+	       (with-slots (name flags value-type documentation) param
+	         (let* ((slot-name (default-slot-name name))
+			(slot-type (type-from-number value-type #|t|#))
+			(accessor
+			 (default-slot-accessor class slot-name slot-type)))
+		   `(,slot-name
+		     :allocation :property
+		     :pname ,name
+		     ,@(cond
+			((and
+			  (member :writable flags)
+			  (member :readable flags))
+			 (list :accessor accessor))
+			((member :writable flags)
+			 (list :writer `(setf ,accessor)))
+			((member :readable flags)
+			 (list :reader accessor)))
+		     ,@(when (or
+			      (member :construct flags)
+			      (member :writable flags))
+			 (list :initarg (intern (string slot-name) "KEYWORD")))
+		     :type ,slot-type
+		     ,@(when documentation
+			 (list :documentation documentation))))))
+	   (query-object-class-properties type-number))))
+
+    (dolist (slot-def override-slots)
+      (let ((name (car slot-def))
+	    (pname (getf (cdr slot-def) :pname)))
+	(setq
+	 expanded-slots
+	 (delete-if
+	  #'(lambda (expanded-slot-def)
+	      (or
+	       (eq name (car expanded-slot-def))
+	       (and
+		pname
+		(string= pname (getf (cdr expanded-slot-def) :pname)))))
+	  expanded-slots))
+
+	(unless (getf (cdr slot-def) :ignore)
+	  (push slot-def expanded-slots))))
+    
+    `(progn
+       (defclass ,class ,supers
+	 ,expanded-slots
+	 (:metaclass ,metaclass)
+	 (:alien-name ,(find-type-name type-number))))))
+
+
+(register-derivable-type 'gobject "GObject" 'expand-gobject-type)
+