[clg] / glib / gobject.lisp

;; Common Lisp bindings for GTK+ v2.0
;; Copyright (C) 2000-2005 Espen S. Johnsen <espen@users.sf.net>
;;
;; 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 1.35 2005-03-11 10:56:58 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
560af5c5	1	;; Common Lisp bindings for GTK+ v2.0
dfa4f314	2	;; Copyright (C) 2000-2005 Espen S. Johnsen <espen@users.sf.net>
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
735a29da	18	;; $Id: gobject.lisp,v 1.35 2005-03-11 10:56:58 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
73572c12	29	(defmethod validate-superclass ((class gobject-class) (super standard-class))
2176a9c7	30	; (subtypep (class-name super) 'gobject)
	31	t))
	32
	33	(defclass direct-property-slot-definition (direct-virtual-slot-definition)
	34	((pname :reader slot-definition-pname :initarg :pname)
	35	(readable :initform t :reader slot-readable-p :initarg :readable)
	36	(writable :initform t :reader slot-writable-p :initarg :writable)
	37	(construct :initform nil :initarg :construct)))
	38
	39	(defclass effective-property-slot-definition (effective-virtual-slot-definition)
	40	((pname :reader slot-definition-pname :initarg :pname)
	41	(readable :reader slot-readable-p :initarg :readable)
	42	(writable :reader slot-writable-p :initarg :writable)
174e8a5c	43	(construct :initarg :construct)))
	44
	45	(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
	46	())
	47
	48	(defclass effective-user-data-slot-definition (effective-virtual-slot-definition)
	49	())
	50
2176a9c7	51
	52	(defbinding %object-ref () pointer
	53	(location pointer))
	54
	55	(defbinding %object-unref () nil
	56	(location pointer))
	57
	58	(defmethod reference-foreign ((class gobject-class) location)
	59	(declare (ignore class))
	60	(%object-ref location))
	61
	62	(defmethod unreference-foreign ((class gobject-class) location)
	63	(declare (ignore class))
	64	(%object-unref location))
	65
	66
	67	; (defbinding object-class-install-param () nil
	68	; (class pointer)
	69	; (id unsigned-int)
	70	; (parameter parameter))
	71
	72	; (defbinding object-class-find-param-spec () parameter
	73	; (class pointer)
	74	; (name string))
	75
	76	(defun signal-name-to-string (name)
	77	(substitute #\_ #\- (string-downcase (string name))))
	78
	79
	80	(defmethod direct-slot-definition-class ((class gobject-class) &rest initargs)
	81	(case (getf initargs :allocation)
	82	(:property (find-class 'direct-property-slot-definition))
174e8a5c	83	(:user-data (find-class 'direct-user-data-slot-definition))
2176a9c7	84	(t (call-next-method))))
	85
	86	(defmethod effective-slot-definition-class ((class gobject-class) &rest initargs)
	87	(case (getf initargs :allocation)
	88	(:property (find-class 'effective-property-slot-definition))
174e8a5c	89	(:user-data (find-class 'effective-user-data-slot-definition))
2176a9c7	90	(t (call-next-method))))
	91
	92	(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
eeda1c2d	93	(if (typep (first direct-slotds) 'direct-property-slot-definition)
2176a9c7	94	(nconc
	95	(list :pname (signal-name-to-string
	96	(most-specific-slot-value direct-slotds 'pname))
	97	:readable (most-specific-slot-value direct-slotds 'readable)
	98	:writable (most-specific-slot-value direct-slotds 'writable)
	99	:construct (most-specific-slot-value direct-slotds 'construct))
	100	(call-next-method))
	101	(call-next-method)))
	102
	103
	104	(defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition))
dfa4f314	105	(let ((type (slot-definition-type slotd))
dfa4f314	106	(pname (slot-definition-pname slotd)))
eeda1c2d	107	(when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd))
2176a9c7	108	(setf
eeda1c2d	109	(slot-value slotd 'getter)
dfa4f314	110	(let ((reader nil))
eeda1c2d	111	#'(lambda (object)
21299acf	112	(unless reader
21299acf	113	(setq reader (reader-function type)))
dfa4f314	114	(let ((gvalue (gvalue-new type)))
eeda1c2d	115	(%object-get-property object pname gvalue)
	116	(unwind-protect
	117	(funcall reader gvalue +gvalue-value-offset+)
	118	(gvalue-free gvalue t)))))))
2176a9c7	119
eeda1c2d	120	(when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd))
2176a9c7	121	(setf
eeda1c2d	122	(slot-value slotd 'setter)
dfa4f314	123	(let ((writer nil))
eeda1c2d	124	#'(lambda (value object)
21299acf	125	(unless writer
21299acf	126	(setq writer (writer-function type)))
dfa4f314	127	(let ((gvalue (gvalue-new type)))
eeda1c2d	128	(funcall writer value gvalue +gvalue-value-offset+)
	129	(%object-set-property object pname gvalue)
	130	(gvalue-free gvalue t)
	131	value))))))
	132
2176a9c7	133	(call-next-method))
2176a9c7	134
174e8a5c	135	(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
174e8a5c	136	(let ((slot-name (slot-definition-name slotd)))
56870989	137	(unless (slot-boundp slotd 'getter)
	138	(setf
	139	(slot-value slotd 'getter)
	140	#'(lambda (object)
	141	(prog1 (user-data object slot-name)))))
	142	(unless (slot-boundp slotd 'setter)
	143	(setf
	144	(slot-value slotd 'setter)
	145	#'(lambda (value object)
	146	(setf (user-data object slot-name) value))))
	147	(unless (slot-boundp slotd 'boundp)
	148	(setf
	149	(slot-value slotd 'boundp)
	150	#'(lambda (object)
	151	(user-data-p object slot-name)))))
174e8a5c	152	(call-next-method))
174e8a5c	153
2176a9c7	154
	155	;;;; Super class for all classes in the GObject type hierarchy
	156
560af5c5	157	(eval-when (:compile-toplevel :load-toplevel :execute)
c8c48a4c	158	(defclass gobject (ginstance)
560af5c5	159	()
2176a9c7	160	(:metaclass gobject-class)
dfa4f314	161	(:gtype "GObject")))
9adccb27	162
eeda1c2d	163
	164	(defun initial-add (object function initargs key pkey)
	165	(loop
	166	as (initarg value . rest) = initargs then rest
	167	do (cond
	168	((eq initarg key) (funcall function object value))
	169	((eq initarg pkey) (mapc #'(lambda (value)
	170	(funcall function object value))
	171	value)))
	172	while rest))
	173
	174	(defun initial-apply-add (object function initargs key pkey)
	175	(initial-add object #'(lambda (object value)
	176	(apply function object (mklist value)))
	177	initargs key pkey))
	178
	179
82747bbd	180	(defmethod initialize-instance ((object gobject) &rest initargs)
040579dd	181	(unless (slot-boundp object 'location)
	182	;; Extract initargs which we should pass directly to the GObeject
	183	;; constructor
	184	(let* ((slotds (class-slots (class-of object)))
	185	(args (when initargs
	186	(loop
	187	as (key value . rest) = initargs then rest
	188	as slotd = (find-if
	189	#'(lambda (slotd)
	190	(member key (slot-definition-initargs slotd)))
	191	slotds)
	192	when (and (typep slotd 'effective-property-slot-definition)
	193	(slot-value slotd 'construct))
	194	collect (progn
	195	(remf initargs key)
	196	(list
	197	(slot-definition-pname slotd)
	198	(slot-definition-type slotd)
	199	value))
	200	while rest))))
	201	(if args
	202	(let* ((string-size (size-of 'string))
	203	(string-writer (writer-function 'string))
	204	(string-destroy (destroy-function 'string))
	205	(params (allocate-memory
	206	(* (length args) (+ string-size +gvalue-size+)))))
9adccb27	207	(loop
040579dd	208	for (pname type value) in args
9adccb27	209	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
040579dd	210	do (funcall string-writer pname tmp)
	211	(gvalue-init (sap+ tmp string-size) type value))
	212	(unwind-protect
	213	(setf
	214	(slot-value object 'location)
	215	(%gobject-newv (type-number-of object) (length args) params))
	216	(loop
	217	repeat (length args)
	218	as tmp = params then (sap+ tmp (+ string-size +gvalue-size+))
	219	do (funcall string-destroy tmp)
	220	(gvalue-unset (sap+ tmp string-size)))
	221	(deallocate-memory params)))
8755b1a5	222	(setf
8755b1a5	223	(slot-value object 'location)
040579dd	224	(%gobject-new (type-number-of object))))))
8755b1a5	225
4d83a8a6	226	(apply #'call-next-method object initargs))
	227
	228
1dbf4216	229	(defmethod instance-finalizer ((instance gobject))
	230	(let ((location (proxy-location instance)))
	231	#'(lambda ()
	232	(remove-cached-instance location)
1dbf4216	233	(%object-unref location))))
1dbf4216	234
9adccb27	235
d4b21b08	236	(defbinding (%gobject-new "g_object_new") () pointer
a9044181	237	(type type-number)
a9044181	238	(nil null))
560af5c5	239
9adccb27	240	(defbinding (%gobject-newv "g_object_newv") () pointer
4d83a8a6	241	(type type-number)
4d83a8a6	242	(n-parameters unsigned-int)
9adccb27	243	(params pointer))
de8516ca	244
de8516ca	245
d4b21b08	246
323d4265	247	;;;; Property stuff
560af5c5	248
26b133ed	249	(defbinding %object-set-property () nil
c8c48a4c	250	(object gobject)
	251	(name string)
	252	(value gvalue))
86d9d6ab	253
26b133ed	254	(defbinding %object-get-property () nil
c8c48a4c	255	(object gobject)
c8c48a4c	256	(name string)
a9044181	257	(value gvalue))
86d9d6ab	258
26b133ed	259	(defbinding %object-notify () nil
c8c48a4c	260	(object gobject)
c8c48a4c	261	(name string))
86d9d6ab	262
26b133ed	263	(defbinding object-freeze-notify () nil
a9044181	264	(object gobject))
86d9d6ab	265
26b133ed	266	(defbinding object-thaw-notify () nil
a9044181	267	(object gobject))
86d9d6ab	268
a00ba56a	269
	270	;;;; User data
	271
26b133ed	272	(defbinding %object-set-qdata-full () nil
86d9d6ab	273	(object gobject)
	274	(id quark)
	275	(data unsigned-long)
	276	(destroy-marshal pointer))
	277
73572c12	278	(defcallback user-data-destroy-func (nil (id unsigned-int))
	279	(destroy-user-data id))
	280
	281	(export 'user-data-destroy-func)
	282
174e8a5c	283	(defun (setf user-data) (data object key)
a00ba56a	284	(%object-set-qdata-full object (quark-intern key)
73572c12	285	(register-user-data data) (callback user-data-destroy-func))
86d9d6ab	286	data)
86d9d6ab	287
a00ba56a	288	;; deprecated
174e8a5c	289	(defun (setf object-data) (data object key &key (test #'eq))
	290	(assert (eq test #'eq))
	291	(setf (user-data object key) data))
	292
26b133ed	293	(defbinding %object-get-qdata () unsigned-long
86d9d6ab	294	(object gobject)
	295	(id quark))
	296
174e8a5c	297	(defun user-data (object key)
a00ba56a	298	(find-user-data (%object-get-qdata object (quark-intern key))))
174e8a5c	299
a00ba56a	300	;; deprecated
86d9d6ab	301	(defun object-data (object key &key (test #'eq))
174e8a5c	302	(assert (eq test #'eq))
	303	(user-data object key))
	304
	305	(defun user-data-p (object key)
a00ba56a	306	(user-data-exists-p (%object-get-qdata object (quark-intern key))))
	307
	308	(defbinding %object-steal-qdata () unsigned-long
	309	(object gobject)
	310	(id quark))
	311
	312	(defun unset-user-data (object key)
	313	(destroy-user-data (%object-steal-qdata object (quark-intern key))))
86d9d6ab	314
86d9d6ab	315
d4b21b08	316	;;;;
d4b21b08	317
323d4265	318	(defbinding %object-class-list-properties () pointer
d4b21b08	319	(class pointer)
	320	(n-properties unsigned-int :out))
	321
9c03a07c	322
	323	(defun %map-params (params length type inherited-p)
	324	(if inherited-p
9adccb27	325	(map-c-vector 'list #'identity params 'param length)
9c03a07c	326	(let ((properties ()))
9adccb27	327	(map-c-vector 'list
9c03a07c	328	#'(lambda (param)
	329	(when (eql (param-owner-type param) type)
	330	(push param properties)))
	331	params 'param length)
	332	(nreverse properties))))
	333
	334	(defun query-object-class-properties (type &optional inherited-p)
735a29da	335	(let* ((type-number (find-type-number type t))
9c03a07c	336	(class (type-class-ref type-number)))
	337	(unwind-protect
	338	(multiple-value-bind (array length)
	339	(%object-class-list-properties class)
21299acf	340	(unless (null-pointer-p array)
	341	(unwind-protect
	342	(%map-params array length type-number inherited-p)
	343	(deallocate-memory array))))
9c03a07c	344	; (type-class-unref type-number)
9c03a07c	345	)))
d4b21b08	346
	347
	348	(defun default-slot-name (name)
	349	(intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
	350
	351	(defun default-slot-accessor (class-name slot-name type)
	352	(intern
	353	(format
	354	nil "~A-~A~A" class-name slot-name
4d83a8a6	355	(if (eq type 'boolean) "-P" ""))))
d4b21b08	356
323d4265	357
646466b0	358	(defun slot-definition-from-property (class property &optional slot-name args)
9c03a07c	359	(with-slots (name flags value-type documentation) property
646466b0	360	(let* ((slot-name (or slot-name (default-slot-name name)))
62f12808	361	(slot-type (or (getf args :type) (type-from-number value-type) 'pointer))
9c03a07c	362	(accessor (default-slot-accessor class slot-name slot-type)))
	363
	364	`(,slot-name
	365	:allocation :property :pname ,name
eeda1c2d	366
735a29da	367	,@(when (find :unbound args) (list :unbound (getf args :unbound)))
	368	,@(when (find :getter args) (list :getter (getf args :getter)))
	369	,@(when (find :setter args) (list :setter (getf args :setter)))
9c03a07c	370
	371	;; accessors
	372	,@(cond
	373	((and
	374	(member :writable flags) (member :readable flags)
	375	(not (member :construct-only flags)))
	376	(list :accessor accessor))
	377	((and (member :writable flags) (not (member :construct-only flags)))
	378	(list :writer `(setf ,accessor)))
	379	((member :readable flags)
	380	(list :reader accessor)))
	381
	382	;; readable/writable/construct
	383	,@(when (or (not (member :writable flags))
	384	(member :construct-only flags))
	385	'(:writable nil))
	386	,@(when (not (member :readable flags))
	387	'(:readable nil))
	388	,@(when (or (member :construct flags)
	389	(member :construct-only flags))
	390	'(:construct t))
	391
	392	;; initargs
e5c7586b	393	,@(if (find :initarg args)
	394	(let ((initarg (getf args :initarg)))
	395	(etypecase initarg
	396	(null ())
	397	(symbol `(:initarg ,initarg))))
	398	(when (or (member :construct flags)
	399	(member :construct-only flags)
	400	(member :writable flags))
	401	(list :initarg (intern (string slot-name) "KEYWORD"))))
9c03a07c	402
	403	:type ,slot-type
	404	:documentation ,documentation))))
	405
	406
	407	(defun slot-definitions (class properties slots)
	408	(loop
9c03a07c	409	for property in properties
eeda1c2d	410	as slot = (or
	411	(find (param-name property) slots
	412	:key #'(lambda (slot) (getf (rest slot) :pname))
	413	:test #'string=)
	414	(find (param-name property) slots
	415	:key #'first :test #'string-equal))
	416	do (cond
	417	((not slot)
	418	(push (slot-definition-from-property class property) slots))
	419	((getf (rest slot) :merge)
	420	(setf
	421	(rest slot)
646466b0	422	(rest (slot-definition-from-property class property (first slot) (rest slot)))))))
9c03a07c	423	(delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots))
	424
	425
62f12808	426	(defun expand-gobject-type (type forward-p options &optional (metaclass 'gobject-class))
9c03a07c	427	(let ((supers (cons (supertype type) (implements type)))
	428	(class (type-from-number type))
	429	(slots (getf options :slots)))
	430	`(defclass ,class ,supers
735a29da	431	,(unless forward-p
	432	(slot-definitions class (query-object-class-properties type) slots))
	433	(:metaclass ,metaclass)
	434	(:gtype ,(register-type-as type)))))
323d4265	435
62f12808	436	(defun gobject-dependencies (type)
21299acf	437	(delete-duplicates
	438	(cons
	439	(supertype type)
	440	(append
	441	(type-interfaces type)
	442	(mapcar #'param-value-type (query-object-class-properties type))))))
d4b21b08	443
62f12808	444
62f12808	445	(register-derivable-type 'gobject "GObject" 'expand-gobject-type 'gobject-dependencies)
ae37d096	446
	447
	448	;;; Pseudo type for gobject instances which have their reference count
	449	;;; increased by the returning function
	450
	451	(defmethod alien-type ((type (eql 'referenced)) &rest args)
	452	(declare (ignore type args))
	453	(alien-type 'gobject))
	454
	455	(defmethod from-alien-form (form (type (eql 'referenced)) &rest args)
	456	(declare (ignore type))
	457	(destructuring-bind (type) args
	458	(if (subtypep type 'gobject)
	459	(let ((instance (make-symbol "INSTANCE")))
	460	`(let ((,instance ,(from-alien-form form type)))
	461	(when ,instance
	462	(%object-unref (proxy-location ,instance)))
	463	,instance))
	464	(error "~A is not a subclass of GOBJECT" type))))
	465
	466	(export 'referenced)