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 (debugf "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 (debugf "Initializing instance ~A for type ~A (creating ~A)~%" instance (g-type-name (foreign-slot-value class 'g-type-class :type)) *current-creating-object*)
18 (unless (gethash (pointer-address instance) *lisp-objects-pointers*)
19 (debugf " Proceeding with initialization...")
20 (setf (gethash (pointer-address instance) *lisp-objects-pointers*) t
21 (gethash (pointer-address instance) *lisp-objects-references*)
22 (or *current-creating-object*
23 (let* ((g-type (foreign-slot-value class 'g-type-class :type))
24 (type-name (g-type-name g-type))
25 (lisp-type-info (gethash type-name *registered-types*))
26 (lisp-class (object-type-class lisp-type-info)))
27 (make-instance lisp-class :pointer instance))))
28 (g-object-add-toggle-ref instance (callback c-object-toggle-pointer) (null-pointer))
29 (g-object-unref instance)))
31 (defcallback c-object-toggle-pointer :void ((data :pointer) (object :pointer) (is-last-ref :boolean))
32 (object-toggle-pointer data object is-last-ref))
34 (defcallback c-instance-init :void ((instance :pointer) (class :pointer))
35 (instance-init instance class))
37 (defcallback c-class-init :void ((class :pointer) (data :pointer))
38 (class-init class data))
40 (defun minimum-foreign-integer (type &optional (signed t))
42 (- (ash 1 (1- (* 8 (foreign-type-size type)))))
45 (defun maximum-foreign-integer (type &optional (signed t))
47 (1- (ash 1 (1- (* 8 (foreign-type-size type)))))
48 (1- (ash 1 (* 8 (foreign-type-size type))))))
50 (defun property->param-spec (property)
51 (destructuring-bind (property-name property-type accessor property-get-fn property-set-fn) property
52 (declare (ignore accessor))
53 (let ((property-g-type (ensure-g-type property-type))
54 (flags (append (when property-get-fn (list :readable))
55 (when property-set-fn (list :writable)))))
56 (ev-case (g-type-fundamental property-g-type)
57 (+g-type-invalid+ (error "GValue is of invalid type ~A (~A)" property-g-type (g-type-name property-g-type)))
59 (+g-type-char+ (g-param-spec-char property-name property-name property-name (minimum-foreign-integer :char) (maximum-foreign-integer :char) 0 flags))
60 (+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))
61 (+g-type-boolean+ (g-param-spec-boolean property-name property-name property-name nil flags))
62 (+g-type-int+ (g-param-spec-int property-name property-name property-name (minimum-foreign-integer :int) (maximum-foreign-integer :int) 0 flags))
63 (+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))
64 (+g-type-long+ (g-param-spec-long property-name property-name property-name (minimum-foreign-integer :long) (maximum-foreign-integer :long) 0 flags))
65 (+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))
66 (+g-type-int64+ (g-param-spec-int64 property-name property-name property-name (minimum-foreign-integer :int64) (maximum-foreign-integer :int64) 0 flags))
67 (+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))
68 (+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))
69 (+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))
70 (+g-type-float+ (g-param-spec-float property-name property-name property-name most-negative-single-float most-positive-single-float 0.0 flags))
71 (+g-type-double+ (g-param-spec-double property-name property-name property-name most-negative-double-float most-positive-double-float 0.0d0 flags))
72 (+g-type-string+ (g-param-spec-string property-name property-name property-name "" flags))
73 (+g-type-pointer+ (g-param-spec-pointer property-name property-name property-name flags))
74 (+g-type-boxed+ (g-param-spec-boxed property-name property-name property-name property-g-type flags))
75 ;(+g-type-param+ (parse-g-value-param gvalue))
76 (+g-type-object+ (g-param-spec-object property-name property-name property-name property-g-type flags))
77 ;(+g-type-interface+ )
78 (t (error "Unknown type: ~A (~A)" property-g-type (g-type-name property-g-type)))))))
80 (defun install-properties (class)
81 (let* ((name (g-type-name (foreign-slot-value class 'g-type-class :type)))
82 (lisp-type-info (gethash name *registered-types*)))
83 (iter (for property in (object-type-properties lisp-type-info))
84 (for param-spec = (property->param-spec property))
85 (for property-id from 123)
86 (debugf "installing property ~A~%" property)
87 (g-object-class-install-property class property-id param-spec))))
89 (defun vtable-item->cstruct-item (item)
90 (if (eq :skip (first item))
92 (list (first item) :pointer)))
94 (defstruct vtable-method-info name return-type args callback-name)
96 (defmethod make-load-form ((object vtable-method-info) &optional environment)
97 (declare (ignore environment))
98 `(make-vtable-method-info :name ',(vtable-method-info-name object)
99 :return-type ',(vtable-method-info-return-type object)
100 :args ',(vtable-method-info-args object)
101 :callback-name ',(vtable-method-info-callback-name object)))
103 (defun vtable-methods (items)
104 (iter (for item in items)
105 (when (eq :skip (first item)) (next-iteration))
106 (destructuring-bind (name callback-name return-type &rest args) item
107 (collect (make-vtable-method-info :name name :return-type return-type :args args :callback-name callback-name)))))
109 (defvar *vtables* (make-hash-table :test 'equal))
111 (defstruct vtable-description type-name cstruct-name methods)
113 (defmacro define-vtable ((type-name cstruct-name) &body items)
115 (defcstruct ,cstruct-name ,@(mapcar #'vtable-item->cstruct-item items))
116 (setf (gethash ,type-name *vtables*)
117 (make-vtable-description :type-name ,type-name :cstruct-name ',cstruct-name :methods (list ,@(mapcar #'make-load-form (vtable-methods items)))))
118 ,@(iter (for method in (vtable-methods items))
119 (collect `(defgeneric ,(vtable-method-info-name method) (,@(mapcar #'first (vtable-method-info-args method)))))
120 (collect `(glib-defcallback ,(vtable-method-info-callback-name method) ,(vtable-method-info-return-type method)
121 (,@(vtable-method-info-args method))
123 (,(vtable-method-info-name method) ,@(mapcar #'first (vtable-method-info-args method)))
124 (return-from-interface-method-implementation (v) :interactive (lambda () (list (eval (read)))) v)))))))
126 (defun interface-init (iface data)
127 (destructuring-bind (class-name interface-name) (prog1 (get-stable-pointer-value data) (free-stable-pointer data))
128 (declare (ignorable class-name))
129 (let* ((vtable (gethash interface-name *vtables*))
130 (vtable-cstruct (vtable-description-cstruct-name vtable)))
131 (debugf "interface-init for class ~A and interface ~A~%" class-name interface-name)
132 (iter (for method in (vtable-description-methods vtable))
133 (setf (foreign-slot-value iface vtable-cstruct (vtable-method-info-name method)) (get-callback (vtable-method-info-callback-name method)))))))
135 (defcallback c-interface-init :void ((iface :pointer) (data :pointer))
136 (interface-init iface data))
138 (defun add-interface (name interface)
139 (let* ((interface-info (list name interface))
140 (interface-info-ptr (allocate-stable-pointer interface-info)))
141 (with-foreign-object (info 'g-interface-info)
142 (setf (foreign-slot-value info 'g-interface-info :interface-init) (callback c-interface-init)
143 (foreign-slot-value info 'g-interface-info :interface-data) interface-info-ptr)
144 (g-type-add-interface-static (g-type-from-name name) (ensure-g-type interface) info))))
146 (defun add-interfaces (name)
147 (let* ((lisp-type-info (gethash name *registered-types*))
148 (interfaces (object-type-interfaces lisp-type-info)))
149 (iter (for interface in interfaces)
150 (add-interface name interface))))
152 (defun class-init (class data)
153 (declare (ignore data))
154 (debugf "class-init for ~A~%" (g-type-name (g-type-from-class class)))
155 (setf (foreign-slot-value class 'g-object-class :get-property)
156 (callback c-object-property-get)
157 (foreign-slot-value class 'g-object-class :set-property)
158 (callback c-object-property-set))
160 (install-properties class))
162 (defun object-property-get (object property-id g-value pspec)
163 (declare (ignore property-id))
164 (let* ((lisp-object (gethash (pointer-address object) *lisp-objects-references*))
165 (property-name (foreign-slot-value pspec 'g-param-spec :name))
166 (property-type (foreign-slot-value pspec 'g-param-spec :value-type))
167 (type-name (g-type-name (foreign-slot-value pspec 'g-param-spec :owner-type)))
168 (lisp-type-info (gethash type-name *registered-types*))
169 (property-info (find property-name (object-type-properties lisp-type-info) :test 'string= :key 'first))
170 (property-get-fn (fourth property-info)))
171 (debugf "get(~A,'~A')~%" lisp-object property-name)
172 (let ((value (restart-case
173 (funcall property-get-fn lisp-object)
174 (return-from-property-getter (value) :interactive (lambda () (debugf "Enter new value: ") (list (eval (read)))) value))))
175 (set-g-value g-value value property-type))))
177 (defcallback c-object-property-get :void ((object :pointer) (property-id :uint) (value :pointer) (pspec :pointer))
178 (object-property-get object property-id value pspec))
180 (defun object-property-set (object property-id value pspec)
181 (declare (ignore property-id))
182 (let* ((lisp-object (gethash (pointer-address object) *lisp-objects-references*))
183 (property-name (foreign-slot-value pspec 'g-param-spec :name))
184 (type-name (g-type-name (foreign-slot-value pspec 'g-param-spec :owner-type)))
185 (lisp-type-info (gethash type-name *registered-types*))
186 (property-info (find property-name (object-type-properties lisp-type-info) :test 'string= :key 'first))
187 (property-set-fn (fifth property-info))
188 (new-value (parse-g-value value)))
189 (debugf "set(~A,'~A',~A)~%" lisp-object property-name new-value)
191 (funcall property-set-fn new-value lisp-object)
192 (return-without-error-from-property-setter () nil))))
194 (defcallback c-object-property-set :void ((object :pointer) (property-id :uint) (value :pointer) (pspec :pointer))
195 (object-property-set object property-id value pspec))
197 (defmacro register-object-type-implementation (name class parent interfaces properties)
198 (unless (stringp parent)
199 (setf parent (g-type-name (ensure-g-type parent))))
201 (setf (gethash ,name *registered-types*) (make-object-type :name ,name :class ',class :parent ,parent :interfaces ',interfaces :properties ',properties))
203 (debugf "Registering GObject type implementation ~A for type ~A~%" ',class ,name)
204 (with-foreign-object (query 'g-type-query)
205 (g-type-query (g-type-from-name ,parent) query)
206 (g-type-register-static-simple (g-type-from-name ,parent)
208 (foreign-slot-value query 'g-type-query :class-size)
209 (callback c-class-init)
210 (foreign-slot-value query 'g-type-query :instance-size)
211 (callback c-instance-init) nil))
212 (add-interfaces ,name))
213 (defmethod initialize-instance :before ((object ,class) &key pointer)
214 (unless (or pointer (and (slot-boundp object 'gobject::pointer)
215 (gobject::pointer object)))
216 (setf (gobject::pointer object) (gobject::g-object-call-constructor ,name nil nil)
217 (gobject::g-object-has-reference object) t)))
219 ,@(iter (for (prop-name prop-type prop-accessor prop-reader prop-writer) in properties)
221 (collect `(defun ,prop-accessor (object) (g-object-call-get-property object ,prop-name))))
223 (collect `(defun (setf ,prop-accessor) (new-value object) (g-object-call-set-property object ,prop-name new-value))))))