[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 1.26 2004/12/29 21:07:46 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)))

(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))

(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))
    (: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 (typep (first direct-slotds) 'direct-property-slot-definition)
      (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)))
    (when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
      (setf 
       (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)))))))
    
    (when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd))
      (setf 
       (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)))
    (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

(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))

(defbinding %object-set-qdata-full () nil
  (object gobject)
  (id quark)
  (data unsigned-long)
  (destroy-marshal pointer))


;;;; User data

(defun (setf user-data) (data object key)
  (%object-set-qdata-full
   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))
  (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)))))


;;;;

(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 &optional args)
  (with-slots (name flags value-type documentation) property
    (let* ((slot-name (default-slot-name name))
	   (slot-type (or (getf args :type) (type-from-number value-type) value-type))
	   (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")))
	
	: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 (rest slot)))))))
  (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)


;;; 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)
Commit	Line	Data
0d07716f	1	;; Common Lisp bindings for GTK+ v2.0
ca0a8e30	2	;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.cs.uit.no>
0d07716f	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
d4ddcf2c	18	;; $Id: gobject.lisp,v 1.26 2004/12/29 21:07:46 espen Exp $
0d07716f	19
	20	(in-package "GLIB")
	21
	22
0c87a95a	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)
d4ddcf2c	44	(construct :initarg :construct)))
	45
	46	(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
	47	())
	48
	49	(defclass effective-user-data-slot-definition (effective-virtual-slot-definition)
	50	())
	51
0c87a95a	52
	53	(defbinding %object-ref () pointer
	54	(location pointer))
	55
	56	(defbinding %object-unref () nil
	57	(location pointer))
	58
	59	(defmethod reference-foreign ((class gobject-class) location)
	60	(declare (ignore class))
	61	(%object-ref location))
	62
	63	(defmethod unreference-foreign ((class gobject-class) location)
	64	(declare (ignore class))
	65	(%object-unref location))
	66
	67
	68	; (defbinding object-class-install-param () nil
	69	; (class pointer)
	70	; (id unsigned-int)
	71	; (parameter parameter))
	72
	73	; (defbinding object-class-find-param-spec () parameter
	74	; (class pointer)
	75	; (name string))
	76
	77	(defun signal-name-to-string (name)
	78	(substitute #\_ #\- (string-downcase (string name))))
	79
	80
	81	(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
	82	(case (getf initargs :allocation)
	83	(:property (find-class 'direct-property-slot-definition))
d4ddcf2c	84	(:user-data (find-class 'direct-user-data-slot-definition))
0c87a95a	85	(t (call-next-method))))
	86
	87	(defmethod effective-slot-definition-class ((class gobject-class) &rest initargs)
	88	(case (getf initargs :allocation)
	89	(:property (find-class 'effective-property-slot-definition))
d4ddcf2c	90	(:user-data (find-class 'effective-user-data-slot-definition))
0c87a95a	91	(t (call-next-method))))
	92
	93	(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
64bce834	94	(if (typep (first direct-slotds) 'direct-property-slot-definition)
0c87a95a	95	(nconc
	96	(list :pname (signal-name-to-string
	97	(most-specific-slot-value direct-slotds 'pname))
	98	:readable (most-specific-slot-value direct-slotds 'readable)
	99	:writable (most-specific-slot-value direct-slotds 'writable)
	100	:construct (most-specific-slot-value direct-slotds 'construct))
	101	(call-next-method))
	102	(call-next-method)))
	103
	104
	105	(defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition))
	106	(let* ((type (slot-definition-type slotd))
	107	(pname (slot-definition-pname slotd))
	108	(type-number (find-type-number type)))
64bce834	109	(when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
0c87a95a	110	(setf
64bce834	111	(slot-value slotd 'getter)
	112	(let ((reader nil))
	113	#'(lambda (object)
	114	(unless reader
7875d055	115	(setq reader (reader-function type))) ;(type-from-number type-number))))
64bce834	116	(let ((gvalue (gvalue-new type-number)))
	117	(%object-get-property object pname gvalue)
	118	(unwind-protect
	119	(funcall reader gvalue +gvalue-value-offset+)
	120	(gvalue-free gvalue t)))))))
0c87a95a	121
64bce834	122	(when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd))
0c87a95a	123	(setf
64bce834	124	(slot-value slotd 'setter)
	125	(let ((writer nil))
	126	#'(lambda (value object)
	127	(unless writer
7875d055	128	(setq writer (writer-function type))) ;(type-from-number type-number))))
64bce834	129	(let ((gvalue (gvalue-new type-number)))
	130	(funcall writer value gvalue +gvalue-value-offset+)
	131	(%object-set-property object pname gvalue)
	132	(gvalue-free gvalue t)
	133	value))))))
	134
0c87a95a	135	(call-next-method))
0c87a95a	136
d4ddcf2c	137	(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
	138	(let ((slot-name (slot-definition-name slotd)))
	139	(setf
	140	(slot-value slotd 'getter)
	141	#'(lambda (object)
	142	(prog1 (user-data object slot-name))))
	143	(setf
	144	(slot-value slotd 'setter)
	145	#'(lambda (value object)
	146	(setf (user-data object slot-name) value)))
	147	(setf
	148	(slot-value slotd 'boundp)
	149	#'(lambda (object)
	150	(user-data-p object slot-name))))
	151	(call-next-method))
	152
0c87a95a	153
	154	;;;; Super class for all classes in the GObject type hierarchy
	155
0d07716f	156	(eval-when (:compile-toplevel :load-toplevel :execute)
c9819f3e	157	(defclass gobject (ginstance)
0d07716f	158	()
0c87a95a	159	(:metaclass gobject-class)
6baf860c	160	(:alien-name "GObject")))
6baf860c	161
64bce834	162
	163	(defun initial-add (object function initargs key pkey)
	164	(loop
	165	as (initarg value . rest) = initargs then rest
	166	do (cond
	167	((eq initarg key) (funcall function object value))
	168	((eq initarg pkey) (mapc #'(lambda (value)
	169	(funcall function object value))
	170	value)))
	171	while rest))
	172
	173	(defun initial-apply-add (object function initargs key pkey)
	174	(initial-add object #'(lambda (object value)
	175	(apply function object (mklist value)))
	176	initargs key pkey))
	177
	178
ca0a8e30	179	(defmethod initialize-instance ((object gobject) &rest initargs)
22a2e918	180	(unless (slot-boundp object 'location)
	181	;; Extract initargs which we should pass directly to the GObeject
	182	;; constructor
	183	(let* ((slotds (class-slots (class-of object)))
	184	(args (when initargs
	185	(loop
	186	as (key value . rest) = initargs then rest
	187	as slotd = (find-if
	188	#'(lambda (slotd)
	189	(member key (slot-definition-initargs slotd)))
	190	slotds)
	191	when (and (typep slotd 'effective-property-slot-definition)
	192	(slot-value slotd 'construct))
	193	collect (progn
	194	(remf initargs key)
	195	(list
	196	(slot-definition-pname slotd)
	197	(slot-definition-type slotd)
	198	value))
	199	while rest))))
	200	(if args
	201	(let* ((string-size (size-of 'string))
	202	(string-writer (writer-function 'string))
	203	(string-destroy (destroy-function 'string))
	204	(params (allocate-memory
	205	(* (length args) (+ string-size +gvalue-size+)))))
6baf860c	206	(loop
22a2e918	207	for (pname type value) in args
6baf860c	208	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
22a2e918	209	do (funcall string-writer pname tmp)
	210	(gvalue-init (sap+ tmp string-size) type value))
	211	(unwind-protect
	212	(setf
	213	(slot-value object 'location)
	214	(%gobject-newv (type-number-of object) (length args) params))
	215	(loop
	216	repeat (length args)
	217	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
	218	do (funcall string-destroy tmp)
	219	(gvalue-unset (sap+ tmp string-size)))
	220	(deallocate-memory params)))
7bde5a67	221	(setf
7bde5a67	222	(slot-value object 'location)
22a2e918	223	(%gobject-new (type-number-of object))))))
7bde5a67	224
935a783c	225	(apply #'call-next-method object initargs))
	226
	227
29933e83	228	(defmethod instance-finalizer ((instance gobject))
	229	(let ((location (proxy-location instance)))
	230	#'(lambda ()
	231	(remove-cached-instance location)
29933e83	232	(%object-unref location))))
29933e83	233
6baf860c	234
3a935dfa	235	(defbinding (%gobject-new "g_object_new") () pointer
b75a7b77	236	(type type-number)
b75a7b77	237	(nil null))
0d07716f	238
6baf860c	239	(defbinding (%gobject-newv "g_object_newv") () pointer
935a783c	240	(type type-number)
935a783c	241	(n-parameters unsigned-int)
6baf860c	242	(params pointer))
9db52165	243
9db52165	244
3a935dfa	245
383653f5	246	;;;; Property stuff
0d07716f	247
c2cd6b3a	248	(defbinding %object-set-property () nil
c9819f3e	249	(object gobject)
	250	(name string)
	251	(value gvalue))
a905f5d9	252
c2cd6b3a	253	(defbinding %object-get-property () nil
c9819f3e	254	(object gobject)
c9819f3e	255	(name string)
b75a7b77	256	(value gvalue))
a905f5d9	257
c2cd6b3a	258	(defbinding %object-notify () nil
c9819f3e	259	(object gobject)
c9819f3e	260	(name string))
a905f5d9	261
c2cd6b3a	262	(defbinding object-freeze-notify () nil
b75a7b77	263	(object gobject))
a905f5d9	264
c2cd6b3a	265	(defbinding object-thaw-notify () nil
b75a7b77	266	(object gobject))
a905f5d9	267
c2cd6b3a	268	(defbinding %object-set-qdata-full () nil
a905f5d9	269	(object gobject)
	270	(id quark)
	271	(data unsigned-long)
	272	(destroy-marshal pointer))
	273
b75a7b77	274
	275	;;;; User data
	276
d4ddcf2c	277	(defun (setf user-data) (data object key)
a905f5d9	278	(%object-set-qdata-full
d4ddcf2c	279	object (quark-from-object key)
a5c3a597	280	(register-user-data data) (callback %destroy-user-data))
a905f5d9	281	data)
a905f5d9	282
d4ddcf2c	283	;; depecated
	284	(defun (setf object-data) (data object key &key (test #'eq))
	285	(assert (eq test #'eq))
	286	(setf (user-data object key) data))
	287
c2cd6b3a	288	(defbinding %object-get-qdata () unsigned-long
a905f5d9	289	(object gobject)
	290	(id quark))
	291
d4ddcf2c	292	(defun user-data (object key)
	293	(find-user-data (%object-get-qdata object (quark-from-object key))))
	294
	295	;; depecated
a905f5d9	296	(defun object-data (object key &key (test #'eq))
d4ddcf2c	297	(assert (eq test #'eq))
	298	(user-data object key))
	299
	300	(defun user-data-p (object key)
	301	(nth-value 1 (find-user-data (%object-get-qdata object (quark-from-object key)))))
a905f5d9	302
a905f5d9	303
3a935dfa	304	;;;;
3a935dfa	305
383653f5	306	(defbinding %object-class-list-properties () pointer
3a935dfa	307	(class pointer)
	308	(n-properties unsigned-int :out))
	309
b7833c4c	310
	311	(defun %map-params (params length type inherited-p)
	312	(if inherited-p
6baf860c	313	(map-c-vector 'list #'identity params 'param length)
b7833c4c	314	(let ((properties ()))
6baf860c	315	(map-c-vector 'list
b7833c4c	316	#'(lambda (param)
	317	(when (eql (param-owner-type param) type)
	318	(push param properties)))
	319	params 'param length)
	320	(nreverse properties))))
	321
	322	(defun query-object-class-properties (type &optional inherited-p)
	323	(let* ((type-number (find-type-number type))
	324	(class (type-class-ref type-number)))
	325	(unwind-protect
	326	(multiple-value-bind (array length)
	327	(%object-class-list-properties class)
	328	(unwind-protect
	329	(%map-params array length type-number inherited-p)
	330	(deallocate-memory array)))
	331	; (type-class-unref type-number)
	332	)))
3a935dfa	333
	334
	335	(defun default-slot-name (name)
	336	(intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
	337
	338	(defun default-slot-accessor (class-name slot-name type)
	339	(intern
	340	(format
	341	nil "~A-~A~A" class-name slot-name
935a783c	342	(if (eq type 'boolean) "-P" ""))))
3a935dfa	343
383653f5	344
64bce834	345	(defun slot-definition-from-property (class property &optional args)
b7833c4c	346	(with-slots (name flags value-type documentation) property
b7833c4c	347	(let* ((slot-name (default-slot-name name))
64bce834	348	(slot-type (or (getf args :type) (type-from-number value-type) value-type))
b7833c4c	349	(accessor (default-slot-accessor class slot-name slot-type)))
	350
	351	`(,slot-name
	352	:allocation :property :pname ,name
64bce834	353
64bce834	354	,@(cond
7875d055	355	((find :unbound args) (list :unbound (getf args :unbound))))
b7833c4c	356
	357	;; accessors
	358	,@(cond
	359	((and
	360	(member :writable flags) (member :readable flags)
	361	(not (member :construct-only flags)))
	362	(list :accessor accessor))
	363	((and (member :writable flags) (not (member :construct-only flags)))
	364	(list :writer `(setf ,accessor)))
	365	((member :readable flags)
	366	(list :reader accessor)))
	367
	368	;; readable/writable/construct
	369	,@(when (or (not (member :writable flags))
	370	(member :construct-only flags))
	371	'(:writable nil))
	372	,@(when (not (member :readable flags))
	373	'(:readable nil))
	374	,@(when (or (member :construct flags)
	375	(member :construct-only flags))
	376	'(:construct t))
	377
	378	;; initargs
	379	,@(when (or (member :construct flags)
	380	(member :construct-only flags)
	381	(member :writable flags))
	382	(list :initarg (intern (string slot-name) "KEYWORD")))
	383
	384	:type ,slot-type
	385	:documentation ,documentation))))
	386
	387
	388	(defun slot-definitions (class properties slots)
	389	(loop
b7833c4c	390	for property in properties
64bce834	391	as slot = (or
	392	(find (param-name property) slots
	393	:key #'(lambda (slot) (getf (rest slot) :pname))
	394	:test #'string=)
	395	(find (param-name property) slots
	396	:key #'first :test #'string-equal))
	397	do (cond
	398	((not slot)
	399	(push (slot-definition-from-property class property) slots))
	400	((getf (rest slot) :merge)
	401	(setf
	402	(rest slot)
	403	(rest (slot-definition-from-property class property (rest slot)))))))
b7833c4c	404	(delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))
	405
	406
	407	(defun expand-gobject-type (type &optional options (metaclass 'gobject-class))
	408	(let ((supers (cons (supertype type) (implements type)))
	409	(class (type-from-number type))
	410	(slots (getf options :slots)))
	411	`(defclass ,class ,supers
	412	,(slot-definitions class (query-object-class-properties type) slots)
	413	(:metaclass ,metaclass)
	414	(:alien-name ,(find-type-name type)))))
383653f5	415
3a935dfa	416
b7833c4c	417	(register-derivable-type 'gobject "GObject" 'expand-gobject-type)
7875d055	418
	419
	420	;;; Pseudo type for gobject instances which have their reference count
	421	;;; increased by the returning function
	422
	423	(defmethod alien-type ((type (eql 'referenced)) &rest args)
	424	(declare (ignore type args))
	425	(alien-type 'gobject))
	426
	427	(defmethod from-alien-form (form (type (eql 'referenced)) &rest args)
	428	(declare (ignore type))
	429	(destructuring-bind (type) args
	430	(if (subtypep type 'gobject)
	431	(let ((instance (make-symbol "INSTANCE")))
	432	`(let ((,instance ,(from-alien-form form type)))
	433	(when ,instance
	434	(%object-unref (proxy-location ,instance)))
	435	,instance))
	436	(error "~A is not a subclass of GOBJECT" type))))
	437
	438	(export 'referenced)