[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 1.30 2005-02-01 15:24:52 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)))
    (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)
    (: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))))


;;;;

(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 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)
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
62f12808	18	;; $Id: gobject.lisp,v 1.30 2005-02-01 15:24:52 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)
174e8a5c	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
2176a9c7	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))
174e8a5c	84	(:user-data (find-class 'direct-user-data-slot-definition))
2176a9c7	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))
174e8a5c	90	(:user-data (find-class 'effective-user-data-slot-definition))
2176a9c7	91	(t (call-next-method))))
	92
	93	(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
eeda1c2d	94	(if (typep (first direct-slotds) 'direct-property-slot-definition)
2176a9c7	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)))
eeda1c2d	109	(when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
2176a9c7	110	(setf
eeda1c2d	111	(slot-value slotd 'getter)
	112	(let ((reader nil))
	113	#'(lambda (object)
	114	(unless reader
ae37d096	115	(setq reader (reader-function type))) ;(type-from-number type-number))))
eeda1c2d	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)))))))
2176a9c7	121
eeda1c2d	122	(when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd))
2176a9c7	123	(setf
eeda1c2d	124	(slot-value slotd 'setter)
	125	(let ((writer nil))
	126	#'(lambda (value object)
	127	(unless writer
ae37d096	128	(setq writer (writer-function type))) ;(type-from-number type-number))))
eeda1c2d	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
2176a9c7	135	(call-next-method))
2176a9c7	136
174e8a5c	137	(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
174e8a5c	138	(let ((slot-name (slot-definition-name slotd)))
56870989	139	(unless (slot-boundp slotd 'getter)
	140	(setf
	141	(slot-value slotd 'getter)
	142	#'(lambda (object)
	143	(prog1 (user-data object slot-name)))))
	144	(unless (slot-boundp slotd 'setter)
	145	(setf
	146	(slot-value slotd 'setter)
	147	#'(lambda (value object)
	148	(setf (user-data object slot-name) value))))
	149	(unless (slot-boundp slotd 'boundp)
	150	(setf
	151	(slot-value slotd 'boundp)
	152	#'(lambda (object)
	153	(user-data-p object slot-name)))))
174e8a5c	154	(call-next-method))
174e8a5c	155
2176a9c7	156
	157	;;;; Super class for all classes in the GObject type hierarchy
	158
560af5c5	159	(eval-when (:compile-toplevel :load-toplevel :execute)
c8c48a4c	160	(defclass gobject (ginstance)
560af5c5	161	()
2176a9c7	162	(:metaclass gobject-class)
9adccb27	163	(:alien-name "GObject")))
9adccb27	164
eeda1c2d	165
	166	(defun initial-add (object function initargs key pkey)
	167	(loop
	168	as (initarg value . rest) = initargs then rest
	169	do (cond
	170	((eq initarg key) (funcall function object value))
	171	((eq initarg pkey) (mapc #'(lambda (value)
	172	(funcall function object value))
	173	value)))
	174	while rest))
	175
	176	(defun initial-apply-add (object function initargs key pkey)
	177	(initial-add object #'(lambda (object value)
	178	(apply function object (mklist value)))
	179	initargs key pkey))
	180
	181
82747bbd	182	(defmethod initialize-instance ((object gobject) &rest initargs)
040579dd	183	(unless (slot-boundp object 'location)
	184	;; Extract initargs which we should pass directly to the GObeject
	185	;; constructor
	186	(let* ((slotds (class-slots (class-of object)))
	187	(args (when initargs
	188	(loop
	189	as (key value . rest) = initargs then rest
	190	as slotd = (find-if
	191	#'(lambda (slotd)
	192	(member key (slot-definition-initargs slotd)))
	193	slotds)
	194	when (and (typep slotd 'effective-property-slot-definition)
	195	(slot-value slotd 'construct))
	196	collect (progn
	197	(remf initargs key)
	198	(list
	199	(slot-definition-pname slotd)
	200	(slot-definition-type slotd)
	201	value))
	202	while rest))))
	203	(if args
	204	(let* ((string-size (size-of 'string))
	205	(string-writer (writer-function 'string))
	206	(string-destroy (destroy-function 'string))
	207	(params (allocate-memory
	208	(* (length args) (+ string-size +gvalue-size+)))))
9adccb27	209	(loop
040579dd	210	for (pname type value) in args
9adccb27	211	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
040579dd	212	do (funcall string-writer pname tmp)
	213	(gvalue-init (sap+ tmp string-size) type value))
	214	(unwind-protect
	215	(setf
	216	(slot-value object 'location)
	217	(%gobject-newv (type-number-of object) (length args) params))
	218	(loop
	219	repeat (length args)
	220	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
	221	do (funcall string-destroy tmp)
	222	(gvalue-unset (sap+ tmp string-size)))
	223	(deallocate-memory params)))
8755b1a5	224	(setf
8755b1a5	225	(slot-value object 'location)
040579dd	226	(%gobject-new (type-number-of object))))))
8755b1a5	227
4d83a8a6	228	(apply #'call-next-method object initargs))
	229
	230
1dbf4216	231	(defmethod instance-finalizer ((instance gobject))
	232	(let ((location (proxy-location instance)))
	233	#'(lambda ()
	234	(remove-cached-instance location)
1dbf4216	235	(%object-unref location))))
1dbf4216	236
9adccb27	237
d4b21b08	238	(defbinding (%gobject-new "g_object_new") () pointer
a9044181	239	(type type-number)
a9044181	240	(nil null))
560af5c5	241
9adccb27	242	(defbinding (%gobject-newv "g_object_newv") () pointer
4d83a8a6	243	(type type-number)
4d83a8a6	244	(n-parameters unsigned-int)
9adccb27	245	(params pointer))
de8516ca	246
de8516ca	247
d4b21b08	248
323d4265	249	;;;; Property stuff
560af5c5	250
26b133ed	251	(defbinding %object-set-property () nil
c8c48a4c	252	(object gobject)
	253	(name string)
	254	(value gvalue))
86d9d6ab	255
26b133ed	256	(defbinding %object-get-property () nil
c8c48a4c	257	(object gobject)
c8c48a4c	258	(name string)
a9044181	259	(value gvalue))
86d9d6ab	260
26b133ed	261	(defbinding %object-notify () nil
c8c48a4c	262	(object gobject)
c8c48a4c	263	(name string))
86d9d6ab	264
26b133ed	265	(defbinding object-freeze-notify () nil
a9044181	266	(object gobject))
86d9d6ab	267
26b133ed	268	(defbinding object-thaw-notify () nil
a9044181	269	(object gobject))
86d9d6ab	270
a00ba56a	271
	272	;;;; User data
	273
26b133ed	274	(defbinding %object-set-qdata-full () nil
86d9d6ab	275	(object gobject)
	276	(id quark)
	277	(data unsigned-long)
	278	(destroy-marshal pointer))
	279
174e8a5c	280	(defun (setf user-data) (data object key)
a00ba56a	281	(%object-set-qdata-full object (quark-intern key)
0f134a29	282	(register-user-data data) (callback %destroy-user-data))
86d9d6ab	283	data)
86d9d6ab	284
a00ba56a	285	;; deprecated
174e8a5c	286	(defun (setf object-data) (data object key &key (test #'eq))
	287	(assert (eq test #'eq))
	288	(setf (user-data object key) data))
	289
26b133ed	290	(defbinding %object-get-qdata () unsigned-long
86d9d6ab	291	(object gobject)
	292	(id quark))
	293
174e8a5c	294	(defun user-data (object key)
a00ba56a	295	(find-user-data (%object-get-qdata object (quark-intern key))))
174e8a5c	296
a00ba56a	297	;; deprecated
86d9d6ab	298	(defun object-data (object key &key (test #'eq))
174e8a5c	299	(assert (eq test #'eq))
	300	(user-data object key))
	301
	302	(defun user-data-p (object key)
a00ba56a	303	(user-data-exists-p (%object-get-qdata object (quark-intern key))))
	304
	305	(defbinding %object-steal-qdata () unsigned-long
	306	(object gobject)
	307	(id quark))
	308
	309	(defun unset-user-data (object key)
	310	(destroy-user-data (%object-steal-qdata object (quark-intern key))))
86d9d6ab	311
86d9d6ab	312
d4b21b08	313	;;;;
d4b21b08	314
323d4265	315	(defbinding %object-class-list-properties () pointer
d4b21b08	316	(class pointer)
	317	(n-properties unsigned-int :out))
	318
9c03a07c	319
	320	(defun %map-params (params length type inherited-p)
	321	(if inherited-p
9adccb27	322	(map-c-vector 'list #'identity params 'param length)
9c03a07c	323	(let ((properties ()))
9adccb27	324	(map-c-vector 'list
9c03a07c	325	#'(lambda (param)
	326	(when (eql (param-owner-type param) type)
	327	(push param properties)))
	328	params 'param length)
	329	(nreverse properties))))
	330
	331	(defun query-object-class-properties (type &optional inherited-p)
	332	(let* ((type-number (find-type-number type))
	333	(class (type-class-ref type-number)))
	334	(unwind-protect
	335	(multiple-value-bind (array length)
	336	(%object-class-list-properties class)
	337	(unwind-protect
	338	(%map-params array length type-number inherited-p)
	339	(deallocate-memory array)))
	340	; (type-class-unref type-number)
	341	)))
d4b21b08	342
	343
	344	(defun default-slot-name (name)
	345	(intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
	346
	347	(defun default-slot-accessor (class-name slot-name type)
	348	(intern
	349	(format
	350	nil "~A-~A~A" class-name slot-name
4d83a8a6	351	(if (eq type 'boolean) "-P" ""))))
d4b21b08	352
323d4265	353
646466b0	354	(defun slot-definition-from-property (class property &optional slot-name args)
9c03a07c	355	(with-slots (name flags value-type documentation) property
646466b0	356	(let* ((slot-name (or slot-name (default-slot-name name)))
62f12808	357	(slot-type (or (getf args :type) (type-from-number value-type) 'pointer))
9c03a07c	358	(accessor (default-slot-accessor class slot-name slot-type)))
	359
	360	`(,slot-name
	361	:allocation :property :pname ,name
eeda1c2d	362
eeda1c2d	363	,@(cond
ae37d096	364	((find :unbound args) (list :unbound (getf args :unbound))))
9c03a07c	365
	366	;; accessors
	367	,@(cond
	368	((and
	369	(member :writable flags) (member :readable flags)
	370	(not (member :construct-only flags)))
	371	(list :accessor accessor))
	372	((and (member :writable flags) (not (member :construct-only flags)))
	373	(list :writer `(setf ,accessor)))
	374	((member :readable flags)
	375	(list :reader accessor)))
	376
	377	;; readable/writable/construct
	378	,@(when (or (not (member :writable flags))
	379	(member :construct-only flags))
	380	'(:writable nil))
	381	,@(when (not (member :readable flags))
	382	'(:readable nil))
	383	,@(when (or (member :construct flags)
	384	(member :construct-only flags))
	385	'(:construct t))
	386
	387	;; initargs
	388	,@(when (or (member :construct flags)
	389	(member :construct-only flags)
	390	(member :writable flags))
	391	(list :initarg (intern (string slot-name) "KEYWORD")))
56870989	392	,@(cond
56870989	393	((find :initarg args) (list :initarg (getf args :initarg))))
9c03a07c	394
	395	:type ,slot-type
	396	:documentation ,documentation))))
	397
	398
	399	(defun slot-definitions (class properties slots)
	400	(loop
9c03a07c	401	for property in properties
eeda1c2d	402	as slot = (or
	403	(find (param-name property) slots
	404	:key #'(lambda (slot) (getf (rest slot) :pname))
	405	:test #'string=)
	406	(find (param-name property) slots
	407	:key #'first :test #'string-equal))
	408	do (cond
	409	((not slot)
	410	(push (slot-definition-from-property class property) slots))
	411	((getf (rest slot) :merge)
	412	(setf
	413	(rest slot)
646466b0	414	(rest (slot-definition-from-property class property (first slot) (rest slot)))))))
9c03a07c	415	(delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))
	416
	417
62f12808	418	(defun expand-gobject-type (type forward-p options &optional (metaclass 'gobject-class))
9c03a07c	419	(let ((supers (cons (supertype type) (implements type)))
	420	(class (type-from-number type))
	421	(slots (getf options :slots)))
	422	`(defclass ,class ,supers
62f12808	423	,(unless forward-p
62f12808	424	(slot-definitions class (query-object-class-properties type) slots))
9c03a07c	425	(:metaclass ,metaclass)
9c03a07c	426	(:alien-name ,(find-type-name type)))))
323d4265	427
62f12808	428	(defun gobject-dependencies (type)
62f12808	429	(delete-duplicates (mapcar #'param-value-type (query-object-class-properties type))))
d4b21b08	430
62f12808	431
62f12808	432	(register-derivable-type 'gobject "GObject" 'expand-gobject-type 'gobject-dependencies)
ae37d096	433
	434
	435	;;; Pseudo type for gobject instances which have their reference count
	436	;;; increased by the returning function
	437
	438	(defmethod alien-type ((type (eql 'referenced)) &rest args)
	439	(declare (ignore type args))
	440	(alien-type 'gobject))
	441
	442	(defmethod from-alien-form (form (type (eql 'referenced)) &rest args)
	443	(declare (ignore type))
	444	(destructuring-bind (type) args
	445	(if (subtypep type 'gobject)
	446	(let ((instance (make-symbol "INSTANCE")))
	447	`(let ((,instance ,(from-alien-form form type)))
	448	(when ,instance
	449	(%object-unref (proxy-location ,instance)))
	450	,instance))
	451	(error "~A is not a subclass of GOBJECT" type))))
	452
	453	(export 'referenced)