[clg] / glib / gobject.lisp

;; Common Lisp bindings for GTK+ v2.x
;; Copyright 2000-2005 Espen S. Johnsen <espen@users.sf.net>
;;
;; Permission is hereby granted, free of charge, to any person obtaining
;; a copy of this software and associated documentation files (the
;; "Software"), to deal in the Software without restriction, including
;; without limitation the rights to use, copy, modify, merge, publish,
;; distribute, sublicense, and/or sell copies of the Software, and to
;; permit persons to whom the Software is furnished to do so, subject to
;; the following conditions:
;;
;; The above copyright notice and this permission notice shall be
;; included in all copies or substantial portions of the Software.
;;
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

;; $Id: gobject.lisp,v 1.36 2005-04-23 16:48:51 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 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)))
    (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)))
	     (let ((gvalue (gvalue-new type)))
	       (%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)))
	     (let ((gvalue (gvalue-new type)))
	       (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 '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))


;;;; Super class for all classes in the GObject type hierarchy

(eval-when (:compile-toplevel :load-toplevel :execute)
  (defclass gobject (ginstance)
    ()
    (:metaclass gobject-class)
    (:gtype "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))

(defcallback user-data-destroy-func (nil (id unsigned-int))
  (destroy-user-data id))

(export 'user-data-destroy-func)

(defun (setf user-data) (data object key)
  (%object-set-qdata-full object (quark-intern key)
   (register-user-data data) (callback user-data-destroy-func))
  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))))


;;;;

(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 t))
	 (class (type-class-ref type-number)))
    (unwind-protect
	 (multiple-value-bind (array length)
	     (%object-class-list-properties class)
	   (unless (null-pointer-p array)
	     (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 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

	,@(when (find :unbound args) (list :unbound (getf args :unbound)))
	,@(when (find :getter args) (list :getter (getf args :getter)))
	,@(when (find :setter args) (list :setter (getf args :setter)))
	
	;; 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
	,@(if (find :initarg args)
	      (let ((initarg (getf args :initarg)))
		(etypecase initarg
		  (null ())
		  (symbol `(:initarg ,initarg))))
	    (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 (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)
	 (:gtype ,(register-type-as type)))))

(defun gobject-dependencies (type)
  (delete-duplicates 
   (cons
    (supertype type)
    (append 
     (type-interfaces type)
     (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)
Commit	Line	Data
112ac1d3	1	;; Common Lisp bindings for GTK+ v2.x
112ac1d3	2	;; Copyright 2000-2005 Espen S. Johnsen <espen@users.sf.net>
560af5c5	3	;;
112ac1d3	4	;; Permission is hereby granted, free of charge, to any person obtaining
	5	;; a copy of this software and associated documentation files (the
	6	;; "Software"), to deal in the Software without restriction, including
	7	;; without limitation the rights to use, copy, modify, merge, publish,
	8	;; distribute, sublicense, and/or sell copies of the Software, and to
	9	;; permit persons to whom the Software is furnished to do so, subject to
	10	;; the following conditions:
560af5c5	11	;;
112ac1d3	12	;; The above copyright notice and this permission notice shall be
112ac1d3	13	;; included in all copies or substantial portions of the Software.
560af5c5	14	;;
112ac1d3	15	;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	16	;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	17	;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	18	;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	19	;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	20	;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	21	;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
560af5c5	22
112ac1d3	23	;; $Id: gobject.lisp,v 1.36 2005-04-23 16:48:51 espen Exp $
560af5c5	24
	25	(in-package "GLIB")
	26
	27
2176a9c7	28	;;;; Metaclass used for subclasses of gobject
	29
	30	(eval-when (:compile-toplevel :load-toplevel :execute)
	31	(defclass gobject-class (ginstance-class)
	32	())
	33
73572c12	34	(defmethod validate-superclass ((class gobject-class) (super standard-class))
2176a9c7	35	; (subtypep (class-name super) 'gobject)
	36	t))
	37
	38	(defclass direct-property-slot-definition (direct-virtual-slot-definition)
	39	((pname :reader slot-definition-pname :initarg :pname)
	40	(readable :initform t :reader slot-readable-p :initarg :readable)
	41	(writable :initform t :reader slot-writable-p :initarg :writable)
	42	(construct :initform nil :initarg :construct)))
	43
	44	(defclass effective-property-slot-definition (effective-virtual-slot-definition)
	45	((pname :reader slot-definition-pname :initarg :pname)
	46	(readable :reader slot-readable-p :initarg :readable)
	47	(writable :reader slot-writable-p :initarg :writable)
174e8a5c	48	(construct :initarg :construct)))
	49
	50	(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
	51	())
	52
	53	(defclass effective-user-data-slot-definition (effective-virtual-slot-definition)
	54	())
	55
2176a9c7	56
	57	(defbinding %object-ref () pointer
	58	(location pointer))
	59
	60	(defbinding %object-unref () nil
	61	(location pointer))
	62
	63	(defmethod reference-foreign ((class gobject-class) location)
	64	(declare (ignore class))
	65	(%object-ref location))
	66
	67	(defmethod unreference-foreign ((class gobject-class) location)
	68	(declare (ignore class))
	69	(%object-unref location))
	70
	71
	72	; (defbinding object-class-install-param () nil
	73	; (class pointer)
	74	; (id unsigned-int)
	75	; (parameter parameter))
	76
	77	; (defbinding object-class-find-param-spec () parameter
	78	; (class pointer)
	79	; (name string))
	80
	81	(defun signal-name-to-string (name)
	82	(substitute #\_ #\- (string-downcase (string name))))
	83
	84
	85	(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
	86	(case (getf initargs :allocation)
	87	(:property (find-class 'direct-property-slot-definition))
174e8a5c	88	(:user-data (find-class 'direct-user-data-slot-definition))
2176a9c7	89	(t (call-next-method))))
	90
	91	(defmethod effective-slot-definition-class ((class gobject-class) &rest initargs)
	92	(case (getf initargs :allocation)
	93	(:property (find-class 'effective-property-slot-definition))
174e8a5c	94	(:user-data (find-class 'effective-user-data-slot-definition))
2176a9c7	95	(t (call-next-method))))
	96
	97	(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
eeda1c2d	98	(if (typep (first direct-slotds) 'direct-property-slot-definition)
2176a9c7	99	(nconc
	100	(list :pname (signal-name-to-string
	101	(most-specific-slot-value direct-slotds 'pname))
	102	:readable (most-specific-slot-value direct-slotds 'readable)
	103	:writable (most-specific-slot-value direct-slotds 'writable)
	104	:construct (most-specific-slot-value direct-slotds 'construct))
	105	(call-next-method))
	106	(call-next-method)))
	107
	108
	109	(defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition))
dfa4f314	110	(let ((type (slot-definition-type slotd))
dfa4f314	111	(pname (slot-definition-pname slotd)))
eeda1c2d	112	(when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
2176a9c7	113	(setf
eeda1c2d	114	(slot-value slotd 'getter)
dfa4f314	115	(let ((reader nil))
eeda1c2d	116	#'(lambda (object)
21299acf	117	(unless reader
21299acf	118	(setq reader (reader-function type)))
dfa4f314	119	(let ((gvalue (gvalue-new type)))
eeda1c2d	120	(%object-get-property object pname gvalue)
	121	(unwind-protect
	122	(funcall reader gvalue +gvalue-value-offset+)
	123	(gvalue-free gvalue t)))))))
2176a9c7	124
eeda1c2d	125	(when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd))
2176a9c7	126	(setf
eeda1c2d	127	(slot-value slotd 'setter)
dfa4f314	128	(let ((writer nil))
eeda1c2d	129	#'(lambda (value object)
21299acf	130	(unless writer
21299acf	131	(setq writer (writer-function type)))
dfa4f314	132	(let ((gvalue (gvalue-new type)))
eeda1c2d	133	(funcall writer value gvalue +gvalue-value-offset+)
	134	(%object-set-property object pname gvalue)
	135	(gvalue-free gvalue t)
	136	value))))))
	137
2176a9c7	138	(call-next-method))
2176a9c7	139
174e8a5c	140	(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
174e8a5c	141	(let ((slot-name (slot-definition-name slotd)))
56870989	142	(unless (slot-boundp slotd 'getter)
	143	(setf
	144	(slot-value slotd 'getter)
	145	#'(lambda (object)
	146	(prog1 (user-data object slot-name)))))
	147	(unless (slot-boundp slotd 'setter)
	148	(setf
	149	(slot-value slotd 'setter)
	150	#'(lambda (value object)
	151	(setf (user-data object slot-name) value))))
	152	(unless (slot-boundp slotd 'boundp)
	153	(setf
	154	(slot-value slotd 'boundp)
	155	#'(lambda (object)
	156	(user-data-p object slot-name)))))
174e8a5c	157	(call-next-method))
174e8a5c	158
2176a9c7	159
	160	;;;; Super class for all classes in the GObject type hierarchy
	161
560af5c5	162	(eval-when (:compile-toplevel :load-toplevel :execute)
c8c48a4c	163	(defclass gobject (ginstance)
560af5c5	164	()
2176a9c7	165	(:metaclass gobject-class)
dfa4f314	166	(:gtype "GObject")))
9adccb27	167
eeda1c2d	168
	169	(defun initial-add (object function initargs key pkey)
	170	(loop
	171	as (initarg value . rest) = initargs then rest
	172	do (cond
	173	((eq initarg key) (funcall function object value))
	174	((eq initarg pkey) (mapc #'(lambda (value)
	175	(funcall function object value))
	176	value)))
	177	while rest))
	178
	179	(defun initial-apply-add (object function initargs key pkey)
	180	(initial-add object #'(lambda (object value)
	181	(apply function object (mklist value)))
	182	initargs key pkey))
	183
	184
82747bbd	185	(defmethod initialize-instance ((object gobject) &rest initargs)
040579dd	186	(unless (slot-boundp object 'location)
	187	;; Extract initargs which we should pass directly to the GObeject
	188	;; constructor
	189	(let* ((slotds (class-slots (class-of object)))
	190	(args (when initargs
	191	(loop
	192	as (key value . rest) = initargs then rest
	193	as slotd = (find-if
	194	#'(lambda (slotd)
	195	(member key (slot-definition-initargs slotd)))
	196	slotds)
	197	when (and (typep slotd 'effective-property-slot-definition)
	198	(slot-value slotd 'construct))
	199	collect (progn
	200	(remf initargs key)
	201	(list
	202	(slot-definition-pname slotd)
	203	(slot-definition-type slotd)
	204	value))
	205	while rest))))
	206	(if args
	207	(let* ((string-size (size-of 'string))
	208	(string-writer (writer-function 'string))
	209	(string-destroy (destroy-function 'string))
	210	(params (allocate-memory
	211	(* (length args) (+ string-size +gvalue-size+)))))
9adccb27	212	(loop
040579dd	213	for (pname type value) in args
9adccb27	214	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
040579dd	215	do (funcall string-writer pname tmp)
	216	(gvalue-init (sap+ tmp string-size) type value))
	217	(unwind-protect
	218	(setf
	219	(slot-value object 'location)
	220	(%gobject-newv (type-number-of object) (length args) params))
	221	(loop
	222	repeat (length args)
	223	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
	224	do (funcall string-destroy tmp)
	225	(gvalue-unset (sap+ tmp string-size)))
	226	(deallocate-memory params)))
8755b1a5	227	(setf
8755b1a5	228	(slot-value object 'location)
040579dd	229	(%gobject-new (type-number-of object))))))
8755b1a5	230
4d83a8a6	231	(apply #'call-next-method object initargs))
	232
	233
1dbf4216	234	(defmethod instance-finalizer ((instance gobject))
	235	(let ((location (proxy-location instance)))
	236	#'(lambda ()
	237	(remove-cached-instance location)
1dbf4216	238	(%object-unref location))))
1dbf4216	239
9adccb27	240
d4b21b08	241	(defbinding (%gobject-new "g_object_new") () pointer
a9044181	242	(type type-number)
a9044181	243	(nil null))
560af5c5	244
9adccb27	245	(defbinding (%gobject-newv "g_object_newv") () pointer
4d83a8a6	246	(type type-number)
4d83a8a6	247	(n-parameters unsigned-int)
9adccb27	248	(params pointer))
de8516ca	249
de8516ca	250
d4b21b08	251
323d4265	252	;;;; Property stuff
560af5c5	253
26b133ed	254	(defbinding %object-set-property () nil
c8c48a4c	255	(object gobject)
	256	(name string)
	257	(value gvalue))
86d9d6ab	258
26b133ed	259	(defbinding %object-get-property () nil
c8c48a4c	260	(object gobject)
c8c48a4c	261	(name string)
a9044181	262	(value gvalue))
86d9d6ab	263
26b133ed	264	(defbinding %object-notify () nil
c8c48a4c	265	(object gobject)
c8c48a4c	266	(name string))
86d9d6ab	267
26b133ed	268	(defbinding object-freeze-notify () nil
a9044181	269	(object gobject))
86d9d6ab	270
26b133ed	271	(defbinding object-thaw-notify () nil
a9044181	272	(object gobject))
86d9d6ab	273
a00ba56a	274
	275	;;;; User data
	276
26b133ed	277	(defbinding %object-set-qdata-full () nil
86d9d6ab	278	(object gobject)
	279	(id quark)
	280	(data unsigned-long)
	281	(destroy-marshal pointer))
	282
73572c12	283	(defcallback user-data-destroy-func (nil (id unsigned-int))
	284	(destroy-user-data id))
	285
	286	(export 'user-data-destroy-func)
	287
174e8a5c	288	(defun (setf user-data) (data object key)
a00ba56a	289	(%object-set-qdata-full object (quark-intern key)
73572c12	290	(register-user-data data) (callback user-data-destroy-func))
86d9d6ab	291	data)
86d9d6ab	292
a00ba56a	293	;; deprecated
174e8a5c	294	(defun (setf object-data) (data object key &key (test #'eq))
	295	(assert (eq test #'eq))
	296	(setf (user-data object key) data))
	297
26b133ed	298	(defbinding %object-get-qdata () unsigned-long
86d9d6ab	299	(object gobject)
	300	(id quark))
	301
174e8a5c	302	(defun user-data (object key)
a00ba56a	303	(find-user-data (%object-get-qdata object (quark-intern key))))
174e8a5c	304
a00ba56a	305	;; deprecated
86d9d6ab	306	(defun object-data (object key &key (test #'eq))
174e8a5c	307	(assert (eq test #'eq))
	308	(user-data object key))
	309
	310	(defun user-data-p (object key)
a00ba56a	311	(user-data-exists-p (%object-get-qdata object (quark-intern key))))
	312
	313	(defbinding %object-steal-qdata () unsigned-long
	314	(object gobject)
	315	(id quark))
	316
	317	(defun unset-user-data (object key)
	318	(destroy-user-data (%object-steal-qdata object (quark-intern key))))
86d9d6ab	319
86d9d6ab	320
d4b21b08	321	;;;;
d4b21b08	322
323d4265	323	(defbinding %object-class-list-properties () pointer
d4b21b08	324	(class pointer)
	325	(n-properties unsigned-int :out))
	326
9c03a07c	327
	328	(defun %map-params (params length type inherited-p)
	329	(if inherited-p
9adccb27	330	(map-c-vector 'list #'identity params 'param length)
9c03a07c	331	(let ((properties ()))
9adccb27	332	(map-c-vector 'list
9c03a07c	333	#'(lambda (param)
	334	(when (eql (param-owner-type param) type)
	335	(push param properties)))
	336	params 'param length)
	337	(nreverse properties))))
	338
	339	(defun query-object-class-properties (type &optional inherited-p)
735a29da	340	(let* ((type-number (find-type-number type t))
9c03a07c	341	(class (type-class-ref type-number)))
	342	(unwind-protect
	343	(multiple-value-bind (array length)
	344	(%object-class-list-properties class)
21299acf	345	(unless (null-pointer-p array)
	346	(unwind-protect
	347	(%map-params array length type-number inherited-p)
	348	(deallocate-memory array))))
9c03a07c	349	; (type-class-unref type-number)
9c03a07c	350	)))
d4b21b08	351
	352
	353	(defun default-slot-name (name)
	354	(intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
	355
	356	(defun default-slot-accessor (class-name slot-name type)
	357	(intern
	358	(format
	359	nil "~A-~A~A" class-name slot-name
4d83a8a6	360	(if (eq type 'boolean) "-P" ""))))
d4b21b08	361
323d4265	362
646466b0	363	(defun slot-definition-from-property (class property &optional slot-name args)
9c03a07c	364	(with-slots (name flags value-type documentation) property
646466b0	365	(let* ((slot-name (or slot-name (default-slot-name name)))
62f12808	366	(slot-type (or (getf args :type) (type-from-number value-type) 'pointer))
9c03a07c	367	(accessor (default-slot-accessor class slot-name slot-type)))
	368
	369	`(,slot-name
	370	:allocation :property :pname ,name
eeda1c2d	371
735a29da	372	,@(when (find :unbound args) (list :unbound (getf args :unbound)))
	373	,@(when (find :getter args) (list :getter (getf args :getter)))
	374	,@(when (find :setter args) (list :setter (getf args :setter)))
9c03a07c	375
	376	;; accessors
	377	,@(cond
	378	((and
	379	(member :writable flags) (member :readable flags)
	380	(not (member :construct-only flags)))
	381	(list :accessor accessor))
	382	((and (member :writable flags) (not (member :construct-only flags)))
	383	(list :writer `(setf ,accessor)))
	384	((member :readable flags)
	385	(list :reader accessor)))
	386
	387	;; readable/writable/construct
	388	,@(when (or (not (member :writable flags))
	389	(member :construct-only flags))
	390	'(:writable nil))
	391	,@(when (not (member :readable flags))
	392	'(:readable nil))
	393	,@(when (or (member :construct flags)
	394	(member :construct-only flags))
	395	'(:construct t))
	396
	397	;; initargs
e5c7586b	398	,@(if (find :initarg args)
	399	(let ((initarg (getf args :initarg)))
	400	(etypecase initarg
	401	(null ())
	402	(symbol `(:initarg ,initarg))))
	403	(when (or (member :construct flags)
	404	(member :construct-only flags)
	405	(member :writable flags))
	406	(list :initarg (intern (string slot-name) "KEYWORD"))))
9c03a07c	407
	408	:type ,slot-type
	409	:documentation ,documentation))))
	410
	411
	412	(defun slot-definitions (class properties slots)
	413	(loop
9c03a07c	414	for property in properties
eeda1c2d	415	as slot = (or
	416	(find (param-name property) slots
	417	:key #'(lambda (slot) (getf (rest slot) :pname))
	418	:test #'string=)
	419	(find (param-name property) slots
	420	:key #'first :test #'string-equal))
	421	do (cond
	422	((not slot)
	423	(push (slot-definition-from-property class property) slots))
	424	((getf (rest slot) :merge)
	425	(setf
	426	(rest slot)
646466b0	427	(rest (slot-definition-from-property class property (first slot) (rest slot)))))))
9c03a07c	428	(delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))
	429
	430
62f12808	431	(defun expand-gobject-type (type forward-p options &optional (metaclass 'gobject-class))
9c03a07c	432	(let ((supers (cons (supertype type) (implements type)))
	433	(class (type-from-number type))
	434	(slots (getf options :slots)))
	435	`(defclass ,class ,supers
735a29da	436	,(unless forward-p
	437	(slot-definitions class (query-object-class-properties type) slots))
	438	(:metaclass ,metaclass)
	439	(:gtype ,(register-type-as type)))))
323d4265	440
62f12808	441	(defun gobject-dependencies (type)
21299acf	442	(delete-duplicates
	443	(cons
	444	(supertype type)
	445	(append
	446	(type-interfaces type)
	447	(mapcar #'param-value-type (query-object-class-properties type))))))
d4b21b08	448
62f12808	449
62f12808	450	(register-derivable-type 'gobject "GObject" 'expand-gobject-type 'gobject-dependencies)
ae37d096	451
	452
	453	;;; Pseudo type for gobject instances which have their reference count
	454	;;; increased by the returning function
	455
	456	(defmethod alien-type ((type (eql 'referenced)) &rest args)
	457	(declare (ignore type args))
	458	(alien-type 'gobject))
	459
	460	(defmethod from-alien-form (form (type (eql 'referenced)) &rest args)
	461	(declare (ignore type))
	462	(destructuring-bind (type) args
	463	(if (subtypep type 'gobject)
	464	(let ((instance (make-symbol "INSTANCE")))
	465	`(let ((,instance ,(from-alien-form form type)))
	466	(when ,instance
	467	(%object-unref (proxy-location ,instance)))
	468	,instance))
	469	(error "~A is not a subclass of GOBJECT" type))))
	470
	471	(export 'referenced)