;; 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 1.14 2004-10-28 09:34:35 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")
- (:copy %object-ref)
- (:free %object-unref)))
+;;;; Metaclass used for subclasses of gobject
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defclass gobject-class (ginstance-class)
+ ())
-(defmethod initialize-instance ((object gobject) &rest initargs)
- (let ((slotds (class-slots (class-of object)))
- (names (make-array 0 :adjustable t :fill-pointer t))
- (values (make-array 0 :adjustable t :fill-pointer t)))
-
- (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-gobject-slot-definition)
- (slot-value slotd 'construct))
- do (let ((type (find-type-number (slot-definition-type slotd))))
- (vector-push-extend (slot-definition-pname slotd) names)
- (vector-push-extend (gvalue-new type value) values)
- (remf initargs key)))
-
- (setf
- (slot-value object 'location)
- (if (zerop (length names))
- (%gobject-new (type-number-of object))
- (%gobject-newvv (type-number-of object) (length names) names values)))
-
- (mapc #'gvalue-free values))
-
- (apply #'call-next-method object initargs))
+ (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 (%gobject-new "g_object_new") () pointer
- (type type-number)
- (nil null))
+(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
+ ())
-(defbinding (%gobject-newvv "g_object_newvv") () pointer
- (type type-number)
- (n-parameters unsigned-int)
- (names (vector string))
- (values (vector gvalue)))
+(defclass effective-user-data-slot-definition (effective-virtual-slot-definition)
+ ())
-(defbinding %object-ref (type location) pointer
+(defbinding %object-ref () pointer
(location pointer))
- (defbinding %object-unref (type location) nil
- (location pointer))
-
-(defun object-ref (object)
- (%object-ref nil (proxy-location object)))
-
-(defun object-unref (object)
- (%object-unref nil (proxy-location object)))
-
-
-
-;;;; 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) *destroy-notify*)
- 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)
- (defclass gobject-class (ginstance-class)
- ())
-
- (defclass direct-gobject-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)))
+(defbinding %object-unref () nil
+ (location pointer))
- (defclass effective-gobject-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))))
+(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
(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
(case (getf initargs :allocation)
- (:property (find-class 'direct-gobject-slot-definition))
+ (: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-gobject-slot-definition))
+ (: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))
(call-next-method)))
-(defmethod initialize-internal-slot-functions ((slotd effective-gobject-slot-definition))
+(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)
+ (when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
(setf
- (slot-value slotd 'reader-function)
- (if (slot-readable-p slotd)
- #'(lambda (object)
- (with-gc-disabled
- (let ((gvalue (gvalue-new type-number)))
- (%object-get-property object pname gvalue)
- (unwind-protect
- (funcall
- (intern-reader-function (type-from-number type-number)) gvalue +gvalue-value-offset+) ; temporary workaround for wrong topological sorting of types
- (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)
- #'(lambda (value object)
- (with-gc-disabled
- (let ((gvalue (gvalue-new type-number)))
- (funcall
- (intern-writer-function (type-from-number type-number)) ; temporary
- value gvalue +gvalue-value-offset+)
- (%object-set-property object pname gvalue)
- (funcall
- (intern-destroy-function (type-from-number type-number)) ; temporary
- gvalue +gvalue-value-offset+)
- (gvalue-free gvalue nil)
- 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 'getter)
+ #'(lambda (object)
+ (prog1 (user-data object slot-name)))))
+ (unless (slot-boundp slotd 'setter)
(setf
- (slot-value slotd 'boundp-function)
+ (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)
- (declare (ignore object))
- t))))
+ (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))))
+
;;;;
(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 %map-params (params length type inherited-p)
+ (if inherited-p
+ (map-c-vector 'list #'identity params 'param length)
+ (let ((properties ()))
+ (map-c-vector 'list
+ #'(lambda (param)
+ (when (eql (param-owner-type param) type)
+ (push param properties)))
+ params 'param length)
+ (nreverse properties))))
+
+(defun query-object-class-properties (type &optional inherited-p)
+ (let* ((type-number (find-type-number type))
+ (class (type-class-ref type-number)))
+ (unwind-protect
+ (multiple-value-bind (array length)
+ (%object-class-list-properties class)
+ (unwind-protect
+ (%map-params array length type-number inherited-p)
+ (deallocate-memory array)))
+; (type-class-unref type-number)
+ )))
(defun default-slot-name (name)
nil "~A-~A~A" class-name slot-name
(if (eq type 'boolean) "-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))
- (manual-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 value-type) ;(type-from-number value-type t))
- (slot-type (or (type-from-number value-type) value-type))
- (accessor
- (default-slot-accessor class slot-name slot-type)));(type-from-number slot-type)))) ; temporary workaround for wrong topological sorting of types
-
- `(,slot-name
- :allocation :property
- :pname ,name
- ,@(cond
- ((and
- (member :writable flags)
- (member :readable flags)
- (not (member :construct-only flags)))
- (list :accessor accessor))
- ((and (member :writable flags)
- (not (member :construct-only flags)))
- (list :writer `(setf ,accessor)))
- ((member :readable flags)
- (list :reader accessor)))
- ,@(when (or
- (not (member :writable flags))
- (member :construct-only flags))
- (list :writable nil))
- ,@(when (not (member :readable flags))
- (list :readable nil))
- ,@(when (or
- (member :construct flags)
- (member :construct-only flags))
- (list :construct t))
- ,@(when (or
- (member :construct flags)
- (member :construct-only 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 (reverse manual-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)
+(defun slot-definition-from-property (class property &optional slot-name args)
+ (with-slots (name flags value-type documentation) property
+ (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
+ ((and
+ (member :writable flags) (member :readable flags)
+ (not (member :construct-only flags)))
+ (list :accessor accessor))
+ ((and (member :writable flags) (not (member :construct-only flags)))
+ (list :writer `(setf ,accessor)))
+ ((member :readable flags)
+ (list :reader accessor)))
+
+ ;; readable/writable/construct
+ ,@(when (or (not (member :writable flags))
+ (member :construct-only flags))
+ '(:writable nil))
+ ,@(when (not (member :readable flags))
+ '(:readable nil))
+ ,@(when (or (member :construct flags)
+ (member :construct-only flags))
+ '(:construct t))
+
+ ;; initargs
+ ,@(when (or (member :construct flags)
+ (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
+ for property in properties
+ 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 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
+ ,(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))))
+
+(export 'referenced)
~mdw / clg / blobdiff