;; 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 1.30 2005-02-01 15:24:52 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))
+;;;; Metaclass used for subclasses of gobject
-(defun object-data (object key &key (test #'eq))
- (find-user-data
- (%object-get-qdata object (quark-from-object key :test test))))
+(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)))
-;;;; Metaclass used for subclasses of gobject
+(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)))
-;(eval-when (:compile-toplevel :load-toplevel :execute)
- (defclass gobject-class (ginstance-class)
- ())
+(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
+ ())
- (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-user-data-slot-definition (effective-virtual-slot-definition)
+ ())
- (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))
(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)
- (if (eq (most-specific-slot-value direct-slotds 'allocation) :property)
+ (if (typep (first direct-slotds) 'direct-property-slot-definition)
(nconc
(list :pname (signal-name-to-string
(most-specific-slot-value direct-slotds 'pname))
(let* ((type (slot-definition-type slotd))
(pname (slot-definition-pname slotd))
(type-number (find-type-number type)))
- (unless (slot-boundp slotd 'reader-function)
+ (when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
(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))))))
+ (slot-value slotd 'getter)
+ (let ((reader nil))
+ #'(lambda (object)
+ (unless reader
+ (setq reader (reader-function type))) ;(type-from-number type-number))))
+ (let ((gvalue (gvalue-new type-number)))
+ (%object-get-property object pname gvalue)
+ (unwind-protect
+ (funcall reader gvalue +gvalue-value-offset+)
+ (gvalue-free gvalue t)))))))
- (unless (slot-boundp slotd 'writer-function)
+ (when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd))
(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)
+ (slot-value slotd 'setter)
+ (let ((writer nil))
+ #'(lambda (value object)
+ (unless writer
+ (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)
+ (gvalue-free gvalue t)
+ value))))))
+
+ (call-next-method))
+
+(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
+ (let ((slot-name (slot-definition-name slotd)))
+ (unless (slot-boundp slotd 'getter)
(setf
- (slot-value slotd 'boundp-function)
+ (slot-value slotd 'getter)
#'(lambda (object)
- (declare (ignore object))
- t))))
+ (prog1 (user-data object slot-name)))))
+ (unless (slot-boundp slotd 'setter)
+ (setf
+ (slot-value slotd 'setter)
+ #'(lambda (value object)
+ (setf (user-data object slot-name) value))))
+ (unless (slot-boundp slotd 'boundp)
+ (setf
+ (slot-value slotd 'boundp)
+ #'(lambda (object)
+ (user-data-p object slot-name)))))
(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")))
+
+
+(defun initial-add (object function initargs key pkey)
+ (loop
+ as (initarg value . rest) = initargs then rest
+ do (cond
+ ((eq initarg key) (funcall function object value))
+ ((eq initarg pkey) (mapc #'(lambda (value)
+ (funcall function object value))
+ value)))
+ while rest))
+
+(defun initial-apply-add (object function initargs key pkey)
+ (initial-add object #'(lambda (object value)
+ (apply function object (mklist value)))
+ initargs key pkey))
+
+
+(defmethod initialize-instance ((object gobject) &rest initargs)
+ (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
+ 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))
+
+
+;;;; User data
+
+(defbinding %object-set-qdata-full () nil
+ (object gobject)
+ (id quark)
+ (data unsigned-long)
+ (destroy-marshal pointer))
+
+(defun (setf user-data) (data object key)
+ (%object-set-qdata-full object (quark-intern key)
+ (register-user-data data) (callback %destroy-user-data))
+ data)
+
+;; deprecated
+(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-intern key))))
+
+;; deprecated
+(defun object-data (object key &key (test #'eq))
+ (assert (eq test #'eq))
+ (user-data object key))
+
+(defun user-data-p (object key)
+ (user-data-exists-p (%object-get-qdata object (quark-intern key))))
+
+(defbinding %object-steal-qdata () unsigned-long
+ (object gobject)
+ (id quark))
+
+(defun unset-user-data (object key)
+ (destroy-user-data (%object-steal-qdata object (quark-intern key))))
;;;;
(if (eq type 'boolean) "-P" ""))))
-(defun slot-definition-from-property (class property)
+(defun slot-definition-from-property (class property &optional slot-name args)
(with-slots (name flags value-type documentation) property
- (let* ((slot-name (default-slot-name name))
- (slot-type (or (type-from-number value-type) value-type))
+ (let* ((slot-name (or slot-name (default-slot-name name)))
+ (slot-type (or (getf args :type) (type-from-number value-type) 'pointer))
(accessor (default-slot-accessor class slot-name slot-type)))
`(,slot-name
:allocation :property :pname ,name
+
+ ,@(cond
+ ((find :unbound args) (list :unbound (getf args :unbound))))
;; accessors
,@(cond
(member :construct-only flags)
(member :writable flags))
(list :initarg (intern (string slot-name) "KEYWORD")))
+ ,@(cond
+ ((find :initarg args) (list :initarg (getf args :initarg))))
:type ,slot-type
:documentation ,documentation))))
(defun slot-definitions (class properties slots)
(loop
- with manual-slots = slots
for property in properties
- unless (find-if
- #'(lambda (slot)
- (destructuring-bind (name &rest args) slot
- (or
- (equal (param-name property) (getf args :pname))
- (eq (default-slot-name (param-name property)) name))))
- manual-slots)
- do (push (slot-definition-from-property class property) slots))
+ as slot = (or
+ (find (param-name property) slots
+ :key #'(lambda (slot) (getf (rest slot) :pname))
+ :test #'string=)
+ (find (param-name property) slots
+ :key #'first :test #'string-equal))
+ do (cond
+ ((not slot)
+ (push (slot-definition-from-property class property) slots))
+ ((getf (rest slot) :merge)
+ (setf
+ (rest slot)
+ (rest (slot-definition-from-property class property (first slot) (rest slot)))))))
(delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))
-(defun expand-gobject-type (type &optional options (metaclass 'gobject-class))
+(defun expand-gobject-type (type forward-p options &optional (metaclass 'gobject-class))
(let ((supers (cons (supertype type) (implements type)))
(class (type-from-number type))
(slots (getf options :slots)))
`(defclass ,class ,supers
- ,(slot-definitions class (query-object-class-properties type) slots)
+ ,(unless forward-p
+ (slot-definitions class (query-object-class-properties type) slots))
(:metaclass ,metaclass)
(:alien-name ,(find-type-name type)))))
+(defun gobject-dependencies (type)
+ (delete-duplicates (mapcar #'param-value-type (query-object-class-properties type))))
+
+
+(register-derivable-type 'gobject "GObject" 'expand-gobject-type 'gobject-dependencies)
+
+
+;;; 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))))
-(register-derivable-type 'gobject "GObject" 'expand-gobject-type)
+(export 'referenced)
~mdw / clg / blobdiff