;; 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 1.21 2004-11-09 12:47:44 espen Exp $
(in-package "GLIB")
+;;;; Metaclass used for subclasses of gobject
+
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defclass gobject-class (ginstance-class)
+ ())
+
+ (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)));)
+
+(defbinding %object-ref () pointer
+ (location pointer))
+
+(defbinding %object-unref () nil
+ (location pointer))
+
+(defmethod reference-foreign ((class gobject-class) location)
+ (declare (ignore class))
+ (%object-ref location))
+
+(defmethod unreference-foreign ((class gobject-class) location)
+ (declare (ignore class))
+ (%object-unref location))
+
+
+; (defbinding object-class-install-param () nil
+; (class pointer)
+; (id unsigned-int)
+; (parameter parameter))
+
+; (defbinding object-class-find-param-spec () parameter
+; (class pointer)
+; (name string))
+
+(defun signal-name-to-string (name)
+ (substitute #\_ #\- (string-downcase (string name))))
+
+
+(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
+ (case (getf initargs :allocation)
+ (:property (find-class 'direct-property-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))
+ (t (call-next-method))))
+
+(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
+ (if (eq (most-specific-slot-value direct-slotds 'allocation) :property)
+ (nconc
+ (list :pname (signal-name-to-string
+ (most-specific-slot-value direct-slotds 'pname))
+ :readable (most-specific-slot-value direct-slotds 'readable)
+ :writable (most-specific-slot-value direct-slotds 'writable)
+ :construct (most-specific-slot-value direct-slotds 'construct))
+ (call-next-method))
+ (call-next-method)))
+
+
+(defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition))
+ (let* ((type (slot-definition-type slotd))
+ (pname (slot-definition-pname slotd))
+ (type-number (find-type-number type)))
+ (unless (slot-boundp slotd 'reader-function)
+ (setf
+ (slot-value slotd 'reader-function)
+ (if (slot-readable-p slotd)
+ (let () ;(reader (reader-function (type-from-number type-number))))
+ #'(lambda (object)
+ (let ((gvalue (gvalue-new type-number)))
+ (%object-get-property object pname gvalue)
+ (unwind-protect
+ (funcall #|reader|# (reader-function (type-from-number type-number)) gvalue +gvalue-value-offset+)
+ (gvalue-free gvalue t)))))
+ #'(lambda (value object)
+ (error "Slot is not readable: ~A" (slot-definition-name slotd))))))
+
+ (unless (slot-boundp slotd 'writer-function)
+ (setf
+ (slot-value slotd 'writer-function)
+ (if (slot-writable-p slotd)
+ (let ();; (writer (writer-function (type-from-number type-number)))
+;; (destroy (destroy-function (type-from-number type-number))))
+ #'(lambda (value object)
+ (let ((gvalue (gvalue-new type-number)))
+ (funcall #|writer|# (writer-function (type-from-number type-number)) value gvalue +gvalue-value-offset+)
+ (%object-set-property object pname gvalue)
+; (funcall #|destroy|#(destroy-function (type-from-number type-number)) gvalue +gvalue-value-offset+)
+ (gvalue-free gvalue t)
+ value)))
+ #'(lambda (value object)
+ (error "Slot is not writable: ~A" (slot-definition-name slotd))))))
+
+ (unless (slot-boundp slotd 'boundp-function)
+ (setf
+ (slot-value slotd 'boundp-function)
+ #'(lambda (object)
+ (declare (ignore object))
+ t))))
+ (call-next-method))
+
+
+;;;; Super class for all classes in the GObject type hierarchy
+
(eval-when (:compile-toplevel :load-toplevel :execute)
(defclass gobject (ginstance)
()
- (:metaclass ginstance-class)
+ (:metaclass gobject-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
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))
+ (gvalue-init (sap+ tmp string-size) type value))
(unwind-protect
(setf
(slot-value object 'location)
repeat (length args)
as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
do (funcall string-destroy tmp)
- (gvalue-unset (sap+ tmp string-size)))
+ (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))
-
+ (setf
+ (slot-value object 'location)
+ (%gobject-new (type-number-of object)))))
-(defmethod initialize-instance :around ((object gobject) &rest initargs)
- (declare (ignore initargs))
- (call-next-method)
- (%object-weak-ref object))
+ (apply #'call-next-method object initargs))
-(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))))
+(defmethod instance-finalizer ((instance gobject))
+ (let ((location (proxy-location instance)))
+ #'(lambda ()
+ (remove-cached-instance location)
+ (%object-unref 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)
(%object-get-qdata object (quark-from-object key :test test))))
-
-;;;; Metaclass used for subclasses of gobject
-
-;(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)))
-
- (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))
-
-(defbinding %object-unref () nil
- (location pointer))
-
-(defmethod reference-foreign ((class gobject-class) location)
- (declare (ignore class))
- (%object-ref location))
-
-(defmethod unreference-foreign ((class gobject-class) location)
- (declare (ignore class))
- (%object-unref location))
-
-
-; (defbinding object-class-install-param () nil
-; (class pointer)
-; (id unsigned-int)
-; (parameter parameter))
-
-; (defbinding object-class-find-param-spec () parameter
-; (class pointer)
-; (name string))
-
-(defun signal-name-to-string (name)
- (substitute #\_ #\- (string-downcase (string name))))
-
-
-(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
- (case (getf initargs :allocation)
- (:property (find-class 'direct-property-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))
- (t (call-next-method))))
-
-(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
- (if (eq (most-specific-slot-value direct-slotds 'allocation) :property)
- (nconc
- (list :pname (signal-name-to-string
- (most-specific-slot-value direct-slotds 'pname))
- :readable (most-specific-slot-value direct-slotds 'readable)
- :writable (most-specific-slot-value direct-slotds 'writable)
- :construct (most-specific-slot-value direct-slotds 'construct))
- (call-next-method))
- (call-next-method)))
-
-
-(defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition))
- (let* ((type (slot-definition-type slotd))
- (pname (slot-definition-pname slotd))
- (type-number (find-type-number type)))
- (unless (slot-boundp slotd 'reader-function)
- (setf
- (slot-value slotd 'reader-function)
- (if (slot-readable-p slotd)
- (let () ;(reader (reader-function (type-from-number type-number))))
- #'(lambda (object)
- (let ((gvalue (gvalue-new type-number)))
- (%object-get-property object pname gvalue)
- (unwind-protect
- (funcall #|reader|# (reader-function (type-from-number type-number)) gvalue +gvalue-value-offset+)
- (gvalue-free gvalue t)))))
- #'(lambda (value object)
- (error "Slot is not readable: ~A" (slot-definition-name slotd))))))
-
- (unless (slot-boundp slotd 'writer-function)
- (setf
- (slot-value slotd 'writer-function)
- (if (slot-writable-p slotd)
- (let ();; (writer (writer-function (type-from-number type-number)))
-;; (destroy (destroy-function (type-from-number type-number))))
- #'(lambda (value object)
- (let ((gvalue (gvalue-new type-number)))
- (funcall #|writer|# (writer-function (type-from-number type-number)) value gvalue +gvalue-value-offset+)
- (%object-set-property object pname gvalue)
-; (funcall #|destroy|#(destroy-function (type-from-number type-number)) gvalue +gvalue-value-offset+)
- (gvalue-free gvalue t)
- value)))
- #'(lambda (value object)
- (error "Slot is not writable: ~A" (slot-definition-name slotd))))))
-
- (unless (slot-boundp slotd 'boundp-function)
- (setf
- (slot-value slotd 'boundp-function)
- #'(lambda (object)
- (declare (ignore object))
- t))))
- (call-next-method))
-
-
-(defmethod validate-superclass ((class gobject-class)
- (super pcl::standard-class))
-; (subtypep (class-name super) 'gobject)
- t)
-
-
-
;;;;
(defbinding %object-class-list-properties () pointer
~mdw / clg / blobdiff