;; 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 1.17 2004-11-06 21:39:58 espen Exp $
+;; $Id: gobject.lisp,v 1.22 2004-11-12 14:24:17 espen Exp $
(in-package "GLIB")
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass gobject (ginstance)
- ()
- (:metaclass ginstance-class)
- (:alien-name "GObject")))
-
-(defmethod print-object ((instance gobject) stream)
- (print-unreadable-object (instance stream :type t :identity nil)
- (if (slot-boundp instance 'location)
- (format stream "at 0x~X" (sap-int (proxy-location instance)))
- (write-string "(destroyed)" stream))))
-
-
-(defmethod initialize-instance ((object gobject) &rest initargs)
- ;; Extract initargs which we should pass directly to the GObeject
- ;; constructor
- (let* ((slotds (class-slots (class-of object)))
- (args (loop
- as tmp = initargs then (cddr tmp) while tmp
- as key = (first tmp)
- as value = (second tmp)
- as slotd = (find-if
- #'(lambda (slotd)
- (member key (slot-definition-initargs slotd)))
- slotds)
- when (and (typep slotd 'effective-property-slot-definition)
- (slot-value slotd 'construct))
- collect (progn
- (remf initargs key)
- (list
- (slot-definition-pname slotd)
- (slot-definition-type slotd)
- value)))))
- (if args
- (let* ((string-size (size-of 'string))
- (string-writer (writer-function 'string))
- (string-destroy (destroy-function 'string))
- (params (allocate-memory
- (* (length args) (+ string-size +gvalue-size+)))))
- (loop
- for (pname type value) in args
- as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
- do (funcall string-writer pname tmp)
- (gvalue-init (sap+ tmp string-size) type value))
- (unwind-protect
- (setf
- (slot-value object 'location)
- (%gobject-newv (type-number-of object) (length args) params))
- (loop
- repeat (length args)
- as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
- do (funcall string-destroy tmp)
- (gvalue-unset (sap+ tmp string-size)))
- (deallocate-memory params)))
- (setf
- (slot-value object 'location)
- (%gobject-new (type-number-of object)))))
-
- (%object-weak-ref object)
- (apply #'call-next-method object initargs))
-
-
-(defmethod initialize-instance :around ((object gobject) &rest initargs)
- (declare (ignore initargs))
- (call-next-method)
- (%object-weak-ref object))
-
-
-(def-callback weak-notify (c-call:void (data c-call:int) (location system-area-pointer))
- (let ((object (find-cached-instance location)))
- (when object
-;; (warn "~A being finalized by the GObject system while still in existence in lisp" object)
- (slot-makunbound object 'location)
- (remove-cached-instance location))))
-
-(defbinding %object-weak-ref (object) nil
- (object gobject)
- ((callback weak-notify) pointer)
- (0 unsigned-int))
-
-(defbinding (%gobject-new "g_object_new") () pointer
- (type type-number)
- (nil null))
-
-(defbinding (%gobject-newv "g_object_newv") () pointer
- (type type-number)
- (n-parameters unsigned-int)
- (params pointer))
-
-
-
-;;;; Property stuff
-
-(defbinding %object-set-property () nil
- (object gobject)
- (name string)
- (value gvalue))
-
-(defbinding %object-get-property () nil
- (object gobject)
- (name string)
- (value gvalue))
-
-(defbinding %object-notify () nil
- (object gobject)
- (name string))
-
-(defbinding object-freeze-notify () nil
- (object gobject))
-
-(defbinding object-thaw-notify () nil
- (object gobject))
-
-(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) (callback %destroy-user-data))
- data)
-
-(defbinding %object-get-qdata () unsigned-long
- (object gobject)
- (id quark))
-
-(defun object-data (object key &key (test #'eq))
- (find-user-data
- (%object-get-qdata object (quark-from-object key :test test))))
-
-
-
;;;; Metaclass used for subclasses of gobject
-;(eval-when (:compile-toplevel :load-toplevel :execute)
+(eval-when (:compile-toplevel :load-toplevel :execute)
(defclass gobject-class (ginstance-class)
())
- (defclass direct-property-slot-definition (direct-virtual-slot-definition)
- ((pname :reader slot-definition-pname :initarg :pname)
- (readable :initform t :reader slot-readable-p :initarg :readable)
- (writable :initform t :reader slot-writable-p :initarg :writable)
- (construct :initform nil :initarg :construct)))
+ (defmethod validate-superclass ((class gobject-class)
+ (super pcl::standard-class))
+; (subtypep (class-name super) 'gobject)
+ t))
+
+(defclass direct-property-slot-definition (direct-virtual-slot-definition)
+ ((pname :reader slot-definition-pname :initarg :pname)
+ (readable :initform t :reader slot-readable-p :initarg :readable)
+ (writable :initform t :reader slot-writable-p :initarg :writable)
+ (construct :initform nil :initarg :construct)))
- (defclass effective-property-slot-definition (effective-virtual-slot-definition)
- ((pname :reader slot-definition-pname :initarg :pname)
- (readable :reader slot-readable-p :initarg :readable)
- (writable :reader slot-writable-p :initarg :writable)
- (construct :initarg :construct)));)
+(defclass effective-property-slot-definition (effective-virtual-slot-definition)
+ ((pname :reader slot-definition-pname :initarg :pname)
+ (readable :reader slot-readable-p :initarg :readable)
+ (writable :reader slot-writable-p :initarg :writable)
+ (construct :initarg :construct)));)
(defbinding %object-ref () pointer
(location pointer))
(call-next-method))
-(defmethod validate-superclass ((class gobject-class)
- (super pcl::standard-class))
-; (subtypep (class-name super) 'gobject)
- t)
+;;;; Super class for all classes in the GObject type hierarchy
+
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defclass gobject (ginstance)
+ ()
+ (:metaclass gobject-class)
+ (:alien-name "GObject")))
+
+(defmethod initialize-instance ((object gobject) &rest initargs)
+ ;; Extract initargs which we should pass directly to the GObeject
+ ;; constructor
+ (let* ((slotds (class-slots (class-of object)))
+ (args (when initargs
+ (loop
+ as (key value . rest) = initargs then rest
+ as slotd = (find-if
+ #'(lambda (slotd)
+ (member key (slot-definition-initargs slotd)))
+ slotds)
+ when (and (typep slotd 'effective-property-slot-definition)
+ (slot-value slotd 'construct))
+ collect (progn
+ (remf initargs key)
+ (list
+ (slot-definition-pname slotd)
+ (slot-definition-type slotd)
+ value))
+ while rest))))
+ (if args
+ (let* ((string-size (size-of 'string))
+ (string-writer (writer-function 'string))
+ (string-destroy (destroy-function 'string))
+ (params (allocate-memory
+ (* (length args) (+ string-size +gvalue-size+)))))
+ (loop
+ for (pname type value) in args
+ as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
+ do (funcall string-writer pname tmp)
+ (gvalue-init (sap+ tmp string-size) type value))
+ (unwind-protect
+ (setf
+ (slot-value object 'location)
+ (%gobject-newv (type-number-of object) (length args) params))
+ (loop
+ repeat (length args)
+ as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
+ do (funcall string-destroy tmp)
+ (gvalue-unset (sap+ tmp string-size)))
+ (deallocate-memory params)))
+ (setf
+ (slot-value object 'location)
+ (%gobject-new (type-number-of object)))))
+
+ (apply #'call-next-method object initargs))
+
+
+(defmethod instance-finalizer ((instance gobject))
+ (let ((location (proxy-location instance)))
+ #'(lambda ()
+ (remove-cached-instance location)
+ (%object-unref location))))
+
+
+(defbinding (%gobject-new "g_object_new") () pointer
+ (type type-number)
+ (nil null))
+(defbinding (%gobject-newv "g_object_newv") () pointer
+ (type type-number)
+ (n-parameters unsigned-int)
+ (params pointer))
+
+
+
+;;;; Property stuff
+
+(defbinding %object-set-property () nil
+ (object gobject)
+ (name string)
+ (value gvalue))
+
+(defbinding %object-get-property () nil
+ (object gobject)
+ (name string)
+ (value gvalue))
+
+(defbinding %object-notify () nil
+ (object gobject)
+ (name string))
+
+(defbinding object-freeze-notify () nil
+ (object gobject))
+
+(defbinding object-thaw-notify () nil
+ (object gobject))
+
+(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) (callback %destroy-user-data))
+ data)
+
+(defbinding %object-get-qdata () unsigned-long
+ (object gobject)
+ (id quark))
+
+(defun object-data (object key &key (test #'eq))
+ (find-user-data
+ (%object-get-qdata object (quark-from-object key :test test))))
;;;;
~mdw / clg / blobdiff