3 (defvar *registered-types* (make-hash-table :test 'equal))
5 (defstruct object-type name class parent interfaces properties)
7 (defvar *lisp-objects-references* (make-hash-table :test 'equal))
9 (defun object-toggle-pointer (data object is-last-ref)
10 (declare (ignore data))
11 (format t "Toggling pointer on ~a (~A) to being ~A~%" object (gethash (pointer-address object) *lisp-objects-references*) (if is-last-ref "last ref" "not last ref"))
13 (remhash (pointer-address object) *lisp-objects-references*)
14 (setf (gethash (pointer-address object) *lisp-objects-references*) (gethash (pointer-address object) *foreign-gobjects*))))
16 (defun instance-init (instance class)
17 (format t "Initializing instance ~A for type ~A (creating ~A)~%" instance (g-type-name (foreign-slot-value class 'g-type-class 'type)) *current-creating-object*)
18 (setf (gethash (pointer-address instance) *lisp-objects-references*)
19 (or *current-creating-object*
20 (let* ((g-type (foreign-slot-value class 'g-type-class 'type))
21 (type-name (g-type-name g-type))
22 (lisp-type-info (gethash type-name *registered-types*))
23 (lisp-class (object-type-class lisp-type-info)))
24 (make-instance lisp-class :pointer instance))))
25 (g-object-add-toggle-ref instance (callback c-object-toggle-pointer) (null-pointer))
26 (g-object-unref instance))
28 (defcallback c-object-toggle-pointer :void ((data :pointer) (object :pointer) (is-last-ref :boolean))
29 (object-toggle-pointer data object is-last-ref))
31 (defcallback c-instance-init :void ((instance :pointer) (class :pointer))
32 (instance-init instance class))
34 (defcallback c-class-init :void ((class :pointer) (data :pointer))
35 (class-init class data))
37 (defun minimum-foreign-integer (type &optional (signed t))
39 (- (ash 1 (1- (* 8 (foreign-type-size type)))))
42 (defun maximum-foreign-integer (type &optional (signed t))
44 (1- (ash 1 (1- (* 8 (foreign-type-size type)))))
45 (1- (ash 1 (* 8 (foreign-type-size type))))))
47 (defun property->param-spec (property)
48 (destructuring-bind (property-name property-type property-get-fn property-set-fn) property
49 (let ((property-g-type (ensure-g-type property-type))
50 (flags (append (when property-get-fn (list :readable))
51 (when property-set-fn (list :writable)))))
52 (ev-case (g-type-fundamental property-g-type)
53 (+g-type-invalid+ (error "GValue is of invalid type ~A (~A)" property-g-type (g-type-name property-g-type)))
55 (+g-type-char+ (g-param-spec-char property-name property-name property-name (minimum-foreign-integer :char) (maximum-foreign-integer :char) 0 flags))
56 (+g-type-uchar+ (g-param-spec-uchar property-name property-name property-name (minimum-foreign-integer :uchar nil) (maximum-foreign-integer :uchar nil) 0 flags))
57 (+g-type-boolean+ (g-param-spec-boolean property-name property-name property-name nil flags))
58 (+g-type-int+ (g-param-spec-int property-name property-name property-name (minimum-foreign-integer :int) (maximum-foreign-integer :int) 0 flags))
59 (+g-type-uint+ (g-param-spec-uint property-name property-name property-name (minimum-foreign-integer :uint nil) (maximum-foreign-integer :uint nil) 0 flags))
60 (+g-type-long+ (g-param-spec-long property-name property-name property-name (minimum-foreign-integer :long) (maximum-foreign-integer :long) 0 flags))
61 (+g-type-ulong+ (g-param-spec-ulong property-name property-name property-name (minimum-foreign-integer :ulong nil) (maximum-foreign-integer :ulong nil) 0 flags))
62 (+g-type-int64+ (g-param-spec-int64 property-name property-name property-name (minimum-foreign-integer :int64) (maximum-foreign-integer :int64) 0 flags))
63 (+g-type-uint64+ (g-param-spec-uint64 property-name property-name property-name (minimum-foreign-integer :uint64 nil) (maximum-foreign-integer :uint64 t) 0 flags))
64 (+g-type-enum+ (g-param-spec-enum property-name property-name property-name property-g-type (enum-item-value (first (get-enum-items property-g-type))) flags))
65 (+g-type-flags+ (g-param-spec-enum property-name property-name property-name property-g-type (flags-item-value (first (get-flags-items property-g-type))) flags))
66 (+g-type-float+ (g-param-spec-float property-name property-name property-name most-negative-single-float most-positive-single-float 0.0 flags))
67 (+g-type-double+ (g-param-spec-double property-name property-name property-name most-negative-double-float most-positive-double-float 0.0d0 flags))
68 (+g-type-string+ (g-param-spec-string property-name property-name property-name "" flags))
69 (+g-type-pointer+ (g-param-spec-pointer property-name property-name property-name flags))
70 (+g-type-boxed+ (g-param-spec-boxed property-name property-name property-name property-g-type flags))
71 ;(+g-type-param+ (parse-gvalue-param gvalue))
72 (+g-type-object+ (g-param-spec-object property-name property-name property-name property-g-type flags))
73 ;(+g-type-interface+ )
74 (t (error "Unknown type: ~A (~A)" property-g-type (g-type-name property-g-type)))))))
76 (defun class-init (class data)
77 (declare (ignore data))
78 (format t "class-init for ~A~%" (g-type-name (g-type-from-class class)))
79 (setf (foreign-slot-value class 'g-object-class 'get-property)
80 (callback c-object-property-get)
81 (foreign-slot-value class 'g-object-class 'set-property)
82 (callback c-object-property-set))
83 (let* ((name (g-type-name (foreign-slot-value class 'g-type-class 'type)))
84 (lisp-type-info (gethash name *registered-types*)))
85 (iter (for property in (object-type-properties lisp-type-info))
86 (for param-spec = (property->param-spec property))
87 (for property-id from 123)
88 (format t "installing property ~A~%" property)
89 (g-object-class-install-property class property-id param-spec)))
92 (defun object-property-get (object property-id g-value pspec)
93 (declare (ignore property-id))
94 (let* ((lisp-object (gethash (pointer-address object) *lisp-objects-references*))
95 (property-name (foreign-slot-value pspec 'g-param-spec 'name))
96 (property-type (foreign-slot-value pspec 'g-param-spec 'value-type))
97 (type-name (g-type-name (foreign-slot-value pspec 'g-param-spec 'owner-type)))
98 (lisp-type-info (gethash type-name *registered-types*))
99 (property-info (find property-name (object-type-properties lisp-type-info) :test 'string= :key 'first))
100 (property-get-fn (third property-info)))
101 (format t "get(~A,'~A')~%" lisp-object property-name)
102 (let ((value (restart-case
103 (funcall property-get-fn lisp-object)
104 (return-from-property-getter (value) :interactive (lambda () (format t "Enter new value: ") (list (eval (read)))) value))))
105 (set-g-value g-value value property-type))))
107 (defcallback c-object-property-get :void ((object :pointer) (property-id :uint) (value :pointer) (pspec :pointer))
108 (object-property-get object property-id value pspec))
110 (defun object-property-set (object property-id value pspec)
111 (declare (ignore property-id))
112 (let* ((lisp-object (gethash (pointer-address object) *lisp-objects-references*))
113 (property-name (foreign-slot-value pspec 'g-param-spec 'name))
114 (type-name (g-type-name (foreign-slot-value pspec 'g-param-spec 'owner-type)))
115 (lisp-type-info (gethash type-name *registered-types*))
116 (property-info (find property-name (object-type-properties lisp-type-info) :test 'string= :key 'first))
117 (property-set-fn (fourth property-info))
118 (new-value (parse-gvalue value)))
119 (format t "set(~A,'~A',~A)~%" lisp-object property-name new-value)
121 (funcall property-set-fn new-value lisp-object)
122 (return-without-error-from-property-setter () nil))))
124 (defcallback c-object-property-set :void ((object :pointer) (property-id :uint) (value :pointer) (pspec :pointer))
125 (format t "c-setter")
126 (object-property-set object property-id value pspec))
128 (defmacro register-object-type-implementation (name class parent interfaces properties)
129 (unless (stringp parent)
130 (setf parent (g-type-name (ensure-g-type parent))))
132 (setf (gethash ,name *registered-types*) (make-object-type :name ,name :class ',class :parent ,parent :interfaces ,interfaces :properties ,properties))
133 (with-foreign-object (query 'g-type-query)
134 (g-type-query (g-type-from-name ,parent) query)
135 (with-foreign-slots ((class-size instance-size) query g-type-query)
136 (g-type-register-static-simple (g-type-from-name ,parent) ,name class-size (callback c-class-init) instance-size (callback c-instance-init) nil)))
137 (defmethod initialize-instance :before ((object ,class) &key pointer)
138 (unless (or pointer (and (slot-boundp object 'gobject::pointer)
139 (gobject::pointer object)))
140 (setf (gobject::pointer object) (gobject::g-object-call-constructor ,name nil nil)
141 (gobject::g-object-has-reference object) t)))))