[clg] / glib / gobject.lisp

;; Common Lisp bindings for GTK+ v2.0
;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.cs.uit.no>
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License as published by the Free Software Foundation; either
;; version 2 of the License, or (at your option) any later version.
;;
;; This library is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; Lesser General Public License for more details.
;;
;; You should have received a copy of the GNU Lesser General Public
;; 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 1.21 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 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 (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)))))

  (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))))


;;;;

(defbinding %object-class-list-properties () pointer
  (class pointer)
  (n-properties unsigned-int :out))


(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)
  (intern (substitute #\- #\_ (string-upcase (string-upcase name)))))

(defun default-slot-accessor (class-name slot-name type)
  (intern
   (format
    nil "~A-~A~A" class-name slot-name
    (if (eq type 'boolean) "-P" ""))))


(defun slot-definition-from-property (class property)
  (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))
	   (accessor (default-slot-accessor class slot-name slot-type)))
      
      `(,slot-name
	:allocation :property :pname ,name
	
	;; 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")))
	
	: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))
  (delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))


(defun expand-gobject-type (type &optional options (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)
      (:metaclass ,metaclass)
      (:alien-name ,(find-type-name type)))))


(register-derivable-type 'gobject "GObject" 'expand-gobject-type)
Commit	Line	Data
560af5c5	1	;; Common Lisp bindings for GTK+ v2.0
82747bbd	2	;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.cs.uit.no>
560af5c5	3	;;
	4	;; This library is free software; you can redistribute it and/or
	5	;; modify it under the terms of the GNU Lesser General Public
	6	;; License as published by the Free Software Foundation; either
	7	;; version 2 of the License, or (at your option) any later version.
	8	;;
	9	;; This library is distributed in the hope that it will be useful,
	10	;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	;; Lesser General Public License for more details.
	13	;;
	14	;; You should have received a copy of the GNU Lesser General Public
	15	;; License along with this library; if not, write to the Free Software
	16	;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17
240e53b4	18	;; $Id: gobject.lisp,v 1.21 2004-11-09 12:47:44 espen Exp $
560af5c5	19
	20	(in-package "GLIB")
	21
	22
2176a9c7	23	;;;; Metaclass used for subclasses of gobject
	24
	25	(eval-when (:compile-toplevel :load-toplevel :execute)
	26	(defclass gobject-class (ginstance-class)
	27	())
	28
	29	(defmethod validate-superclass ((class gobject-class)
	30	(super pcl::standard-class))
	31	; (subtypep (class-name super) 'gobject)
	32	t))
	33
	34	(defclass direct-property-slot-definition (direct-virtual-slot-definition)
	35	((pname :reader slot-definition-pname :initarg :pname)
	36	(readable :initform t :reader slot-readable-p :initarg :readable)
	37	(writable :initform t :reader slot-writable-p :initarg :writable)
	38	(construct :initform nil :initarg :construct)))
	39
	40	(defclass effective-property-slot-definition (effective-virtual-slot-definition)
	41	((pname :reader slot-definition-pname :initarg :pname)
	42	(readable :reader slot-readable-p :initarg :readable)
	43	(writable :reader slot-writable-p :initarg :writable)
	44	(construct :initarg :construct)));)
	45
	46	(defbinding %object-ref () pointer
	47	(location pointer))
	48
	49	(defbinding %object-unref () nil
	50	(location pointer))
	51
	52	(defmethod reference-foreign ((class gobject-class) location)
	53	(declare (ignore class))
	54	(%object-ref location))
	55
	56	(defmethod unreference-foreign ((class gobject-class) location)
	57	(declare (ignore class))
	58	(%object-unref location))
	59
	60
	61	; (defbinding object-class-install-param () nil
	62	; (class pointer)
	63	; (id unsigned-int)
	64	; (parameter parameter))
	65
	66	; (defbinding object-class-find-param-spec () parameter
	67	; (class pointer)
	68	; (name string))
	69
	70	(defun signal-name-to-string (name)
	71	(substitute #\_ #\- (string-downcase (string name))))
	72
	73
	74	(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
	75	(case (getf initargs :allocation)
	76	(:property (find-class 'direct-property-slot-definition))
	77	(t (call-next-method))))
	78
	79	(defmethod effective-slot-definition-class ((class gobject-class) &rest initargs)
	80	(case (getf initargs :allocation)
	81	(:property (find-class 'effective-property-slot-definition))
	82	(t (call-next-method))))
	83
	84	(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
	85	(if (eq (most-specific-slot-value direct-slotds 'allocation) :property)
	86	(nconc
87	(list :pname (signal-name-to-string
88	(most-specific-slot-value direct-slotds 'pname))
89	:readable (most-specific-slot-value direct-slotds 'readable)
90	:writable (most-specific-slot-value direct-slotds 'writable)
91	:construct (most-specific-slot-value direct-slotds 'construct))
92	(call-next-method))
93	(call-next-method)))
94
95
96	(defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition))
97	(let* ((type (slot-definition-type slotd))
98	(pname (slot-definition-pname slotd))
99	(type-number (find-type-number type)))
100	(unless (slot-boundp slotd 'reader-function)
101	(setf
102	(slot-value slotd 'reader-function)
103	(if (slot-readable-p slotd)
104	(let () ;(reader (reader-function (type-from-number type-number))))
105	#'(lambda (object)
106	(let ((gvalue (gvalue-new type-number)))
107	(%object-get-property object pname gvalue)
108	(unwind-protect
109	(funcall #\|reader\|# (reader-function (type-from-number type-number)) gvalue +gvalue-value-offset+)
110	(gvalue-free gvalue t)))))
111	#'(lambda (value object)
112	(error "Slot is not readable: ~A" (slot-definition-name slotd))))))
113
114	(unless (slot-boundp slotd 'writer-function)
115	(setf
116	(slot-value slotd 'writer-function)
117	(if (slot-writable-p slotd)
118	(let ();; (writer (writer-function (type-from-number type-number)))
119	;; (destroy (destroy-function (type-from-number type-number))))
120	#'(lambda (value object)
121	(let ((gvalue (gvalue-new type-number)))
122	(funcall #\|writer\|# (writer-function (type-from-number type-number)) value gvalue +gvalue-value-offset+)
123	(%object-set-property object pname gvalue)
124	; (funcall #\|destroy\|#(destroy-function (type-from-number type-number)) gvalue +gvalue-value-offset+)
125	(gvalue-free gvalue t)
126	value)))
127	#'(lambda (value object)
128	(error "Slot is not writable: ~A" (slot-definition-name slotd))))))
129
130	(unless (slot-boundp slotd 'boundp-function)
131	(setf
132	(slot-value slotd 'boundp-function)
133	#'(lambda (object)
134	(declare (ignore object))
135	t))))
136	(call-next-method))
137
138
139	;;;; Super class for all classes in the GObject type hierarchy
140
560af5c5	141	(eval-when (:compile-toplevel :load-toplevel :execute)
c8c48a4c	142	(defclass gobject (ginstance)
560af5c5	143	()
2176a9c7	144	(:metaclass gobject-class)
9adccb27	145	(:alien-name "GObject")))
9adccb27	146
82747bbd	147	(defmethod initialize-instance ((object gobject) &rest initargs)
9adccb27	148	;; Extract initargs which we should pass directly to the GObeject
	149	;; constructor
	150	(let* ((slotds (class-slots (class-of object)))
	151	(args (loop
	152	as tmp = initargs then (cddr tmp) while tmp
	153	as key = (first tmp)
	154	as value = (second tmp)
	155	as slotd = (find-if
	156	#'(lambda (slotd)
	157	(member key (slot-definition-initargs slotd)))
	158	slotds)
	159	when (and (typep slotd 'effective-property-slot-definition)
	160	(slot-value slotd 'construct))
	161	collect (progn
	162	(remf initargs key)
	163	(list
	164	(slot-definition-pname slotd)
	165	(slot-definition-type slotd)
	166	value)))))
	167	(if args
	168	(let* ((string-size (size-of 'string))
	169	(string-writer (writer-function 'string))
	170	(string-destroy (destroy-function 'string))
	171	(params (allocate-memory
	172	(* (length args) (+ string-size +gvalue-size+)))))
	173	(loop
	174	for (pname type value) in args
	175	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
	176	do (funcall string-writer pname tmp)
8755b1a5	177	(gvalue-init (sap+ tmp string-size) type value))
9adccb27	178	(unwind-protect
	179	(setf
	180	(slot-value object 'location)
	181	(%gobject-newv (type-number-of object) (length args) params))
	182	(loop
	183	repeat (length args)
	184	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
	185	do (funcall string-destroy tmp)
8755b1a5	186	(gvalue-unset (sap+ tmp string-size)))
9adccb27	187	(deallocate-memory params)))
8755b1a5	188	(setf
	189	(slot-value object 'location)
	190	(%gobject-new (type-number-of object)))))
	191
4d83a8a6	192	(apply #'call-next-method object initargs))
	193
	194
1dbf4216	195	(defmethod instance-finalizer ((instance gobject))
	196	(let ((location (proxy-location instance)))
	197	#'(lambda ()
	198	(remove-cached-instance location)
1dbf4216	199	(%object-unref location))))
1dbf4216	200
9adccb27	201
d4b21b08	202	(defbinding (%gobject-new "g_object_new") () pointer
a9044181	203	(type type-number)
a9044181	204	(nil null))
560af5c5	205
9adccb27	206	(defbinding (%gobject-newv "g_object_newv") () pointer
4d83a8a6	207	(type type-number)
4d83a8a6	208	(n-parameters unsigned-int)
9adccb27	209	(params pointer))
de8516ca	210
de8516ca	211
d4b21b08	212
323d4265	213	;;;; Property stuff
560af5c5	214
26b133ed	215	(defbinding %object-set-property () nil
c8c48a4c	216	(object gobject)
	217	(name string)
	218	(value gvalue))
86d9d6ab	219
26b133ed	220	(defbinding %object-get-property () nil
c8c48a4c	221	(object gobject)
c8c48a4c	222	(name string)
a9044181	223	(value gvalue))
86d9d6ab	224
26b133ed	225	(defbinding %object-notify () nil
c8c48a4c	226	(object gobject)
c8c48a4c	227	(name string))
86d9d6ab	228
26b133ed	229	(defbinding object-freeze-notify () nil
a9044181	230	(object gobject))
86d9d6ab	231
26b133ed	232	(defbinding object-thaw-notify () nil
a9044181	233	(object gobject))
86d9d6ab	234
26b133ed	235	(defbinding %object-set-qdata-full () nil
86d9d6ab	236	(object gobject)
	237	(id quark)
	238	(data unsigned-long)
	239	(destroy-marshal pointer))
	240
a9044181	241
	242	;;;; User data
	243
86d9d6ab	244	(defun (setf object-data) (data object key &key (test #'eq))
	245	(%object-set-qdata-full
	246	object (quark-from-object key :test test)
0f134a29	247	(register-user-data data) (callback %destroy-user-data))
86d9d6ab	248	data)
86d9d6ab	249
26b133ed	250	(defbinding %object-get-qdata () unsigned-long
86d9d6ab	251	(object gobject)
	252	(id quark))
	253
	254	(defun object-data (object key &key (test #'eq))
	255	(find-user-data
	256	(%object-get-qdata object (quark-from-object key :test test))))
	257
	258
d4b21b08	259	;;;;
d4b21b08	260
323d4265	261	(defbinding %object-class-list-properties () pointer
d4b21b08	262	(class pointer)
	263	(n-properties unsigned-int :out))
	264
9c03a07c	265
	266	(defun %map-params (params length type inherited-p)
	267	(if inherited-p
9adccb27	268	(map-c-vector 'list #'identity params 'param length)
9c03a07c	269	(let ((properties ()))
9adccb27	270	(map-c-vector 'list
9c03a07c	271	#'(lambda (param)
	272	(when (eql (param-owner-type param) type)
	273	(push param properties)))
	274	params 'param length)
	275	(nreverse properties))))
	276
	277	(defun query-object-class-properties (type &optional inherited-p)
	278	(let* ((type-number (find-type-number type))
	279	(class (type-class-ref type-number)))
	280	(unwind-protect
	281	(multiple-value-bind (array length)
	282	(%object-class-list-properties class)
	283	(unwind-protect
	284	(%map-params array length type-number inherited-p)
	285	(deallocate-memory array)))
	286	; (type-class-unref type-number)
	287	)))
d4b21b08	288
	289
	290	(defun default-slot-name (name)
	291	(intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
	292
	293	(defun default-slot-accessor (class-name slot-name type)
	294	(intern
	295	(format
	296	nil "~A-~A~A" class-name slot-name
4d83a8a6	297	(if (eq type 'boolean) "-P" ""))))
d4b21b08	298
323d4265	299
9c03a07c	300	(defun slot-definition-from-property (class property)
	301	(with-slots (name flags value-type documentation) property
	302	(let* ((slot-name (default-slot-name name))
	303	(slot-type (or (type-from-number value-type) value-type))
	304	(accessor (default-slot-accessor class slot-name slot-type)))
	305
	306	`(,slot-name
	307	:allocation :property :pname ,name
	308
	309	;; accessors
	310	,@(cond
	311	((and
	312	(member :writable flags) (member :readable flags)
	313	(not (member :construct-only flags)))
	314	(list :accessor accessor))
	315	((and (member :writable flags) (not (member :construct-only flags)))
	316	(list :writer `(setf ,accessor)))
	317	((member :readable flags)
	318	(list :reader accessor)))
	319
	320	;; readable/writable/construct
	321	,@(when (or (not (member :writable flags))
	322	(member :construct-only flags))
	323	'(:writable nil))
	324	,@(when (not (member :readable flags))
	325	'(:readable nil))
	326	,@(when (or (member :construct flags)
	327	(member :construct-only flags))
	328	'(:construct t))
	329
	330	;; initargs
	331	,@(when (or (member :construct flags)
	332	(member :construct-only flags)
	333	(member :writable flags))
	334	(list :initarg (intern (string slot-name) "KEYWORD")))
	335
	336	:type ,slot-type
	337	:documentation ,documentation))))
	338
	339
	340	(defun slot-definitions (class properties slots)
	341	(loop
	342	with manual-slots = slots
	343	for property in properties
	344	unless (find-if
	345	#'(lambda (slot)
	346	(destructuring-bind (name &rest args) slot
	347	(or
	348	(equal (param-name property) (getf args :pname))
	349	(eq (default-slot-name (param-name property)) name))))
	350	manual-slots)
	351	do (push (slot-definition-from-property class property) slots))
	352	(delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))
	353
	354
	355	(defun expand-gobject-type (type &optional options (metaclass 'gobject-class))
	356	(let ((supers (cons (supertype type) (implements type)))
	357	(class (type-from-number type))
	358	(slots (getf options :slots)))
	359	`(defclass ,class ,supers
	360	,(slot-definitions class (query-object-class-properties type) slots)
	361	(:metaclass ,metaclass)
	362	(:alien-name ,(find-type-name type)))))
323d4265	363
d4b21b08	364
9c03a07c	365	(register-derivable-type 'gobject "GObject" 'expand-gobject-type)