;; Common Lisp bindings for GTK+ v2.x
-;; Copyright 2000-2005 Espen S. Johnsen <espen@users.sf.net>
+;; Copyright 2000-2006 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
;; 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 1.50 2006-02-26 15:30:01 espen Exp $
+;; $Id: gobject.lisp,v 1.59 2008-11-04 03:22:23 espen Exp $
(in-package "GLIB")
(eval-when (:compile-toplevel :load-toplevel :execute)
;; (push :debug-ref-counting *features*)
(defclass gobject-class (ginstance-class)
- ((instance-slots-p :initform nil
+ ((instance-slots-p :initform nil :reader instance-slots-p
:documentation "Non NIL if the class has slots with instance allocation")))
(defmethod validate-superclass ((class gobject-class) (super standard-class))
; (subtypep (class-name super) 'gobject)
t))
+(defmethod slot-unbound (metaclass (class gobject-class) (slot (eql 'ref)))
+ (assert (class-direct-superclasses class))
+ (setf (slot-value class 'ref)
+ #?-(pkg-exists-p "glib-2.0" :atleast-version "2.10.0") '%object-ref
+ #?(pkg-exists-p "glib-2.0" :atleast-version "2.10.0")
+ ;; We do this hack instead of creating a new metaclass to avoid
+ ;; breaking backward compatibility
+ (if (subtypep (class-name class) 'initially-unowned)
+ '%object-ref-sink
+ '%object-ref)))
+
+(defmethod slot-unbound (metaclass (class gobject-class) (slot (eql 'unref)))
+ (setf (slot-value class 'unref) '%object-unref))
+
+
(defclass direct-property-slot-definition (direct-virtual-slot-definition)
((pname :reader slot-definition-pname :initarg :pname)
(readable :reader slot-readable-p :initarg :readable)
(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-only :initarg :construct-only :reader construct-only-property-p)))
+ (readable :initform t :reader slot-readable-p :initarg :readable)
+ (writable :initform t :reader slot-writable-p :initarg :writable)
+ (construct-only :initform nil :initarg :construct-only :reader construct-only-property-p)))
(defclass direct-user-data-slot-definition (direct-virtual-slot-definition)
())
(defbinding %object-unref () nil
(location pointer))
-#+glib2.8
+#?(pkg-exists-p "glib-2.0" :atleast-version "2.8.0")
(progn
(define-callback toggle-ref-callback nil
((data pointer) (location pointer) (last-ref-p boolean))
(declare (ignore data))
#+debug-ref-counting
(if last-ref-p
- (format t "Object at 0x~8,'0X has no foreign references~%" (sap-int location))
- (format t "Foreign reference added to object at 0x~8,'0X~%" (sap-int location)))
+ (format t "Object at 0x~8,'0X has no foreign references~%" (pointer-address location))
+ (format t "Foreign reference added to object at 0x~8,'0X~%" (pointer-address location)))
(if last-ref-p
(cache-instance (find-cached-instance location) t)
(cache-instance (find-cached-instance location) nil)))
(toggle-ref-callback callback)
(nil null)))
-(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))
-
#+debug-ref-counting
(progn
(define-callback weak-ref-callback nil ((data pointer) (location pointer))
- (format t "Object at 0x~8,'0X being finalized~%" (sap-int location)))
+ (format t "Object at 0x~8,'0X (~A) being finalized~%" (pointer-address location) (type-from-number (%type-number-of-ginstance location))))
(defbinding %object-weak-ref (location) pointer
(location pointer)
(defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds)
(if (eq (slot-definition-allocation (first direct-slotds)) :property)
- (nconc
- (list :pname (signal-name-to-string
- (most-specific-slot-value direct-slotds 'pname
- (slot-definition-name (first direct-slotds))))
- :readable (most-specific-slot-value direct-slotds 'readable t)
- :writable (most-specific-slot-value direct-slotds 'writable t)
- :construct-only (most-specific-slot-value direct-slotds
- 'construct-only nil))
+ (nconc
+ (compute-most-specific-initargs direct-slotds
+ '(pname construct-only readable writable))
(call-next-method))
(call-next-method)))
(defvar *ignore-setting-construct-only-property* nil)
(declaim (special *ignore-setting-construct-only-property*))
-(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 (not (slot-boundp slotd 'setter))
- (cond
- ((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)))))
-
- ((construct-only-property-p slotd)
- (setf
- (slot-value slotd 'setter)
- #'(lambda (value object)
- (declare (ignore value object))
- (unless *ignore-setting-construct-only-property*
- (error "Slot is not writable: ~A" (slot-definition-name slotd)))))))))
+(defmethod compute-slot-reader-function ((slotd effective-property-slot-definition) &optional signal-unbound-p)
+ (declare (ignore signal-unbound-p))
+ (let* ((type (slot-definition-type slotd))
+ (pname (slot-definition-pname slotd))
+ (get-reader (reader-function type :ref :get))
+ (peek-reader (reader-function type :ref :peek)))
+ #'(lambda (object)
+ (with-memory (gvalue +gvalue-size+)
+ (%gvalue-init gvalue (find-type-number type))
+ (%object-get-property object pname gvalue)
+ (if (gvalue-static-p gvalue)
+ (funcall peek-reader gvalue +gvalue-value-offset+)
+ (funcall get-reader gvalue +gvalue-value-offset+))))))
+
+(defmethod compute-slot-writer-function :around ((slotd effective-property-slot-definition))
+ (if (construct-only-property-p slotd)
+ #'(lambda (value object)
+ (declare (ignore value))
+ (unless *ignore-setting-construct-only-property*
+ (error 'unwritable-slot :name (slot-definition-name slotd) :instance object)))
+ (call-next-method)))
- (call-next-method))
+(defmethod compute-slot-writer-function ((slotd effective-property-slot-definition))
+ (let* ((type (slot-definition-type slotd))
+ (pname (slot-definition-pname slotd))
+ (writer (writer-function type :temp t))
+ (destroy (destroy-function type :temp t)))
+ #'(lambda (value object)
+ (with-memory (gvalue +gvalue-size+)
+ (%gvalue-init gvalue (find-type-number type))
+ (funcall writer value gvalue +gvalue-value-offset+)
+ (%object-set-property object pname gvalue)
+ (funcall destroy gvalue +gvalue-value-offset+))
+ value)))
+
+(defmethod slot-readable-p ((slotd effective-user-data-slot-definition))
+ (declare (ignore slotd))
+ t)
+
+(defmethod compute-slot-reader-function ((slotd effective-user-data-slot-definition) &optional signal-unbound-p)
+ (declare (ignore signal-unbound-p))
+ (let ((slot-name (slot-definition-name slotd)))
+ #'(lambda (object)
+ (user-data object slot-name))))
-(defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition))
+(defmethod compute-slot-boundp-function ((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))
-
-(defmethod shared-initialize :after ((class gobject-class) names &rest initargs)
- (declare (ignore initargs))
- (when (some #'(lambda (slotd)
- (and
- (eq (slot-definition-allocation slotd) :instance)
- (not (typep slotd 'effective-special-slot-definition))))
- (class-slots class))
- (setf (slot-value class 'instance-slots-p) t)))
+ #'(lambda (object)
+ (user-data-p object slot-name))))
+
+(defmethod slot-writable-p ((slotd effective-user-data-slot-definition))
+ (declare (ignore slotd))
+ t)
+
+(defmethod compute-slot-writer-function ((slotd effective-user-data-slot-definition))
+ (let ((slot-name (slot-definition-name slotd)))
+ #'(lambda (value object)
+ (setf (user-data object slot-name) value))))
+
+(defmethod compute-slot-makunbound-function ((slotd effective-user-data-slot-definition))
+ (let ((slot-name (slot-definition-name slotd)))
+ #'(lambda (object)
+ (unset-user-data object slot-name))))
+
+(defmethod compute-slots :around ((class gobject-class))
+ (let ((slots (call-next-method)))
+ (when (some #'(lambda (slotd)
+ (and
+ (eq (slot-definition-allocation slotd) :instance)
+ (not (typep slotd 'effective-special-slot-definition))))
+ slots)
+ (setf (slot-value class 'instance-slots-p) t))
+ slots))
;;;; Super class for all classes in the GObject type hierarchy
(:metaclass gobject-class)
(:gtype "GObject")))
-(define-type-method callback-from-alien-form ((type gobject) form)
- (from-alien-form type form))
-
#+debug-ref-counting
(defmethod print-object ((instance gobject) stream)
(print-unreadable-object (instance stream :type t :identity nil)
(if (proxy-valid-p instance)
- (format stream "at 0x~X (~D)" (sap-int (foreign-location instance)) (ref-count instance))
+ (format stream "at 0x~X (~D)" (pointer-address (foreign-location instance)) (ref-count instance))
(write-string "at \"unbound\"" stream))))
+(define-type-method reader-function ((type gobject) &key (ref :read) inlined)
+ (assert-not-inlined type inlined)
+ (ecase ref
+ ((:read :peek) (call-next-method type :ref :read))
+ (:get
+ #'(lambda (location &optional (offset 0))
+ (let ((instance (ref-pointer location offset)))
+ (unless (null-pointer-p instance)
+ (multiple-value-bind (gobject new-p)
+ (ensure-proxy-instance 'gobject instance :reference nil)
+ (unless new-p
+ (%object-unref instance))
+ (setf (ref-pointer location offset) (make-pointer 0))
+ gobject)))))))
+
+(define-type-method callback-wrapper ((type gobject) var arg form)
+ (let ((class (type-expand type)))
+ `(let ((,var (ensure-proxy-instance ',class ,arg)))
+ ,form)))
+
(defun initial-add (object function initargs key pkey)
(loop
as (initarg value . rest) = initargs then rest
(defmethod make-proxy-instance ((class gobject-class) location &rest initargs)
(declare (ignore location initargs))
(if (slot-value class 'instance-slots-p)
- (error "An object of class ~A has instance slots and should only be created with MAKE-INSTANCE" class)
+ (error "Objects of class ~A has instance slots and should only be created with MAKE-INSTANCE" class)
(call-next-method)))
+(defparameter +gparameter-gvalue-offset+
+ (max (size-of 'pointer) (type-alignment '(unsigned-byte 64))))
+(defparameter +gparameter-size+
+ (+ +gparameter-gvalue-offset+ +gvalue-size+))
(defmethod allocate-foreign ((object gobject) &rest initargs)
(let ((init-slots ()))
(cond
(init-slots
- (let ((element-size (+ +gvalue-size+ +size-of-pointer+))
- (num-slots (length init-slots)))
- (with-allocated-memory (params (* num-slots element-size))
+ (let* ((num-slots (length init-slots)))
+ (with-memory (params (* num-slots +gparameter-size+))
(loop
with string-writer = (writer-function 'string)
for (slotd . value) in init-slots
- as offset = params then (sap+ offset element-size)
+ as param = params then (pointer+ param +gparameter-size+)
as type = (slot-definition-type slotd)
as pname = (slot-definition-pname slotd)
- do (funcall string-writer pname offset)
- (gvalue-init (sap+ offset +size-of-pointer+) type value))
+ do (funcall string-writer pname param)
+ (gvalue-init
+ (pointer+ param +gparameter-gvalue-offset+) type value))
(unwind-protect
(%gobject-newv (type-number-of object) num-slots params)
(loop
with string-destroy = (destroy-function 'string)
repeat num-slots
- as offset = params then (sap+ offset element-size)
- do (funcall string-destroy offset)
- (gvalue-unset (sap+ offset +size-of-pointer+)))))))
-
+ as param = params then (pointer+ param +gparameter-size+)
+ do (funcall string-destroy param)
+ (gvalue-unset (pointer+ param +gparameter-gvalue-offset+)))))))
+
(t (%gobject-new (type-number-of object))))))
(declare (ignore initargs))
(prog1
(call-next-method)
- #+debug-ref-counting(%object-weak-ref (foreign-location object))
- #+glib2.8
- (when (slot-value (class-of object) 'instance-slots-p)
- (with-slots (location) object
- (%object-add-toggle-ref location)
+ (let ((location (foreign-location object)))
+ #+debug-ref-counting(%object-weak-ref location)
+ #?(pkg-exists-p "glib-2.0" :atleast-version "2.8.0")
+ (when (slot-value (class-of object) 'instance-slots-p)
+ (%object-add-toggle-ref location)
(%object-unref location)))))
(defmethod instance-finalizer ((instance gobject))
(let ((location (foreign-location instance)))
- #+glib2.8
+ #?(pkg-exists-p "glib-2.0" :atleast-version "2.8.0")
(if (slot-value (class-of instance) 'instance-slots-p)
#'(lambda ()
#+debug-ref-counting
- (format t "Finalizing proxy for 0x~8,'0X~%" (sap-int location))
- (remove-cached-instance location)
+ (format t "Finalizing proxy for 0x~8,'0X (~A)~%"
+ (pointer-address location)
+ (find-foreign-type-name (%type-number-of-ginstance location)))
(%object-remove-toggle-ref location))
#'(lambda ()
#+debug-ref-counting
- (format t "Finalizing proxy for 0x~8,'0X~%" (sap-int location))
- (remove-cached-instance location)
+ (format t "Finalizing proxy for 0x~8,'0X (~A)~%"
+ (pointer-address location)
+ (find-foreign-type-name (%type-number-of-ginstance location)))
(%object-unref location)))
- #-glib2.8
+ #?-(pkg-exists-p "glib-2.0" :atleast-version "2.8.0")
#'(lambda ()
- (remove-cached-instance location)
- (%object-unref location))))
+ (%object-unref location))))
(defbinding (%gobject-new "g_object_new") () pointer
(params pointer))
+;;;; Floating references
+
+#?(pkg-exists-p "glib-2.0" :atleast-version "2.10.0")
+(progn
+ (defclass initially-unowned (gobject)
+ ()
+ (:metaclass gobject-class)
+ (:gtype "GInitiallyUnowned"))
+
+ (defbinding %object-ref-sink () pointer
+ (location pointer))
+
+ (defbinding %object-is-floating () boolean
+ (location pointer))
+
+ (defmethod initialize-instance :before ((object initially-unowned) &rest initargs)
+ (declare (ignore initargs))
+ (%object-ref-sink (foreign-location object))))
+
;;;; Property stuff
;;;; User data
+(defgeneric (setf user-data) (data object key))
+(defgeneric user-data (object key))
+(defgeneric user-data-p (object key))
+(defgeneric unset-user-data (object key))
+
(defbinding %object-set-qdata-full () nil
(object gobject)
(id quark)
- (data unsigned-long)
+ (data pointer-data)
(destroy-marshal callback))
-(define-callback user-data-destroy-callback nil ((id unsigned-int))
+(define-callback user-data-destroy-callback nil ((id pointer-data))
(destroy-user-data id))
-(defun (setf user-data) (data object key)
+(defmethod (setf user-data) (data (object gobject) key)
(%object-set-qdata-full object (quark-intern key)
(register-user-data data) user-data-destroy-callback)
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
+(defbinding %object-get-qdata () pointer-data
(object gobject)
(id quark))
-(defun user-data (object key)
+(defmethod user-data ((object gobject) 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)
+(defmethod user-data-p ((object gobject) key)
(user-data-exists-p (%object-get-qdata object (quark-intern key))))
-(defbinding %object-steal-qdata () unsigned-long
+(defbinding %object-steal-qdata () pointer-data
(object gobject)
(id quark))
-(defun unset-user-data (object key)
+(defmethod unset-user-data ((object gobject) key)
(destroy-user-data (%object-steal-qdata object (quark-intern key))))
(defun default-slot-name (name)
- (intern (substitute #\- #\_ (string-upcase (string-upcase name)))))
+ (let ((prefix-len (length (package-prefix))))
+ (intern (substitute #\- #\_
+ (string-upcase
+ (if (and
+ (string-prefix-p (package-prefix) name)
+ (char= #\- (char name prefix-len)))
+ (subseq name (1+ prefix-len))
+ name))))))
(defun default-slot-accessor (class-name slot-name type)
(intern
(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)))
+ (slots (getf options :slots)))
+ (when (member nil supers)
+ (error "Got NIL as a supertype for ~A (full list: ~A).~%~
+ This shouldn't happen - is the parent type correctly registered?"
+ (find-foreign-type-name type) supers))
`(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)
+(defun gobject-dependencies (type options)
(delete-duplicates
(cons
(supertype type)
(append
(type-interfaces type)
- (mapcar #'param-value-type (query-object-class-properties type))))))
+ (mapcar #'param-value-type (query-object-class-properties type))
+ (getf options :dependencies)
+ (loop
+ for slot in (getf options :slots)
+ as type = (getf (rest slot) :type)
+ when (and type (symbolp type) (find-type-number type))
+ collect (find-type-number 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
-;; (deftype referenced (type) type)
-
-(define-type-method alien-type ((type referenced))
- (declare (ignore type))
- (alien-type 'gobject))
-
-(define-type-method from-alien-form ((type referenced) form)
- (let ((type (second type)))
- (if (subtypep type 'gobject)
- (let ((instance (make-symbol "INSTANCE")))
- `(let ((,instance ,(from-alien-form type form)))
- (when ,instance
- (%object-unref (foreign-location ,instance)))
- ,instance))
- (error "~A is not a subclass of GOBJECT" type))))
-
-(export 'referenced)
+(deftype referenced (type) type)
+
+(define-type-method from-alien-form ((type referenced) form &key (ref :free))
+ (cond
+ ((not (eq ref :free))
+ (error "Keyword arg :REF to FROM-ALIEN-FORM should be :FREE for type ~A. It was give ~A" type ref))
+ ((subtypep type 'gobject)
+ (from-alien-form (second (type-expand-to 'referenced type)) form :ref ref))))
+
+(define-type-method from-alien-function ((type referenced) &key (ref :free))
+ (cond
+ ((not (eq ref :free))
+ (error "Keyword arg :REF to FROM-ALIEN-FUNCTION should be :FREE for type ~A. It was give ~A" type ref))
+; ((subtypep type 'gobject) (call-next-method type ref :free))))
+ ((subtypep type 'gobject)
+ (from-alien-function (second (type-expand-to 'referenced type)) :ref ref))))
~mdw / clg / blobdiff