;; 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 1.23 2004-12-16 23:19:17 espen Exp $
+;; $Id: gobject.lisp,v 1.26 2004-12-29 21:07:46 espen Exp $
(in-package "GLIB")
((pname :reader slot-definition-pname :initarg :pname)
(readable :reader slot-readable-p :initarg :readable)
(writable :reader slot-writable-p :initarg :writable)
- (construct :initarg :construct)));)
+ (construct :initarg :construct)))
+
+(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
+ ())
+
+(defclass effective-user-data-slot-definition (effective-virtual-slot-definition)
+ ())
+
(defbinding %object-ref () pointer
(location pointer))
(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
(case (getf initargs :allocation)
(:property (find-class 'direct-property-slot-definition))
+ (:user-data (find-class 'direct-user-data-slot-definition))
(t (call-next-method))))
(defmethod effective-slot-definition-class ((class gobject-class) &rest initargs)
(case (getf initargs :allocation)
(:property (find-class 'effective-property-slot-definition))
+ (:user-data (find-class 'effective-user-data-slot-definition))
(t (call-next-method))))
(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
(let ((reader nil))
#'(lambda (object)
(unless reader
- (setq reader (reader-function (type-from-number type-number))))
+ (setq reader (reader-function type))) ;(type-from-number type-number))))
(let ((gvalue (gvalue-new type-number)))
(%object-get-property object pname gvalue)
(unwind-protect
(let ((writer nil))
#'(lambda (value object)
(unless writer
- (setq writer (writer-function (type-from-number type-number))))
+ (setq writer (writer-function type))) ;(type-from-number type-number))))
(let ((gvalue (gvalue-new type-number)))
(funcall writer value gvalue +gvalue-value-offset+)
(%object-set-property object pname gvalue)
(call-next-method))
+(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
+ (let ((slot-name (slot-definition-name slotd)))
+ (setf
+ (slot-value slotd 'getter)
+ #'(lambda (object)
+ (prog1 (user-data object slot-name))))
+ (setf
+ (slot-value slotd 'setter)
+ #'(lambda (value object)
+ (setf (user-data object slot-name) value)))
+ (setf
+ (slot-value slotd 'boundp)
+ #'(lambda (object)
+ (user-data-p object slot-name))))
+ (call-next-method))
+
;;;; Super class for all classes in the GObject type hierarchy
(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))
+ (unless (slot-boundp object 'location)
+ ;; 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
- repeat (length args)
+ for (pname type value) in 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)))
+ 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)))))
+ (%gobject-new (type-number-of object))))))
(apply #'call-next-method object initargs))
;;;; User data
-(defun (setf object-data) (data object key &key (test #'eq))
+(defun (setf user-data) (data object key)
(%object-set-qdata-full
- object (quark-from-object key :test test)
+ object (quark-from-object key)
(register-user-data data) (callback %destroy-user-data))
data)
+;; depecated
+(defun (setf object-data) (data object key &key (test #'eq))
+ (assert (eq test #'eq))
+ (setf (user-data object key) data))
+
(defbinding %object-get-qdata () unsigned-long
(object gobject)
(id quark))
+(defun user-data (object key)
+ (find-user-data (%object-get-qdata object (quark-from-object key))))
+
+;; depecated
(defun object-data (object key &key (test #'eq))
- (find-user-data
- (%object-get-qdata object (quark-from-object key :test test))))
+ (assert (eq test #'eq))
+ (user-data object key))
+
+(defun user-data-p (object key)
+ (nth-value 1 (find-user-data (%object-get-qdata object (quark-from-object key)))))
;;;;
`(,slot-name
:allocation :property :pname ,name
- ;; temporary hack
,@(cond
- ((find :unbound args) (list :unbound (getf args :unbound)))
- ((type-is-p slot-type 'gobject) (list :unbound nil)))
+ ((find :unbound args) (list :unbound (getf args :unbound))))
;; accessors
,@(cond
(register-derivable-type 'gobject "GObject" 'expand-gobject-type)
+
+
+;;; Pseudo type for gobject instances which have their reference count
+;;; increased by the returning function
+
+(defmethod alien-type ((type (eql 'referenced)) &rest args)
+ (declare (ignore type args))
+ (alien-type 'gobject))
+
+(defmethod from-alien-form (form (type (eql 'referenced)) &rest args)
+ (declare (ignore type))
+ (destructuring-bind (type) args
+ (if (subtypep type 'gobject)
+ (let ((instance (make-symbol "INSTANCE")))
+ `(let ((,instance ,(from-alien-form form type)))
+ (when ,instance
+ (%object-unref (proxy-location ,instance)))
+ ,instance))
+ (error "~A is not a subclass of GOBJECT" type))))
+
+(export 'referenced)
~mdw / clg / blobdiff