112ac1d3 |
1 | ;; Common Lisp bindings for GTK+ v2.x |
2 | ;; Copyright 2000-2005 Espen S. Johnsen <espen@users.sf.net> |
560af5c5 |
3 | ;; |
112ac1d3 |
4 | ;; Permission is hereby granted, free of charge, to any person obtaining |
5 | ;; a copy of this software and associated documentation files (the |
6 | ;; "Software"), to deal in the Software without restriction, including |
7 | ;; without limitation the rights to use, copy, modify, merge, publish, |
8 | ;; distribute, sublicense, and/or sell copies of the Software, and to |
9 | ;; permit persons to whom the Software is furnished to do so, subject to |
10 | ;; the following conditions: |
560af5c5 |
11 | ;; |
112ac1d3 |
12 | ;; The above copyright notice and this permission notice shall be |
13 | ;; included in all copies or substantial portions of the Software. |
560af5c5 |
14 | ;; |
112ac1d3 |
15 | ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
16 | ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
17 | ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
18 | ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
19 | ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
20 | ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
21 | ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
560af5c5 |
22 | |
8958fa4a |
23 | ;; $Id: gobject.lisp,v 1.43 2006-02-05 15:38:57 espen Exp $ |
560af5c5 |
24 | |
25 | (in-package "GLIB") |
26 | |
27 | |
2176a9c7 |
28 | ;;;; Metaclass used for subclasses of gobject |
29 | |
30 | (eval-when (:compile-toplevel :load-toplevel :execute) |
31 | (defclass gobject-class (ginstance-class) |
b036d261 |
32 | ((instance-slots-p :initform nil |
33 | :documentation "Non NIL if the class has slots with instance allocation"))) |
2176a9c7 |
34 | |
73572c12 |
35 | (defmethod validate-superclass ((class gobject-class) (super standard-class)) |
2176a9c7 |
36 | ; (subtypep (class-name super) 'gobject) |
37 | t)) |
38 | |
39 | (defclass direct-property-slot-definition (direct-virtual-slot-definition) |
40 | ((pname :reader slot-definition-pname :initarg :pname) |
41 | (readable :initform t :reader slot-readable-p :initarg :readable) |
42 | (writable :initform t :reader slot-writable-p :initarg :writable) |
43 | (construct :initform nil :initarg :construct))) |
44 | |
45 | (defclass effective-property-slot-definition (effective-virtual-slot-definition) |
46 | ((pname :reader slot-definition-pname :initarg :pname) |
47 | (readable :reader slot-readable-p :initarg :readable) |
48 | (writable :reader slot-writable-p :initarg :writable) |
174e8a5c |
49 | (construct :initarg :construct))) |
50 | |
51 | (defclass direct-user-data-slot-definition (direct-virtual-slot-definition) |
52 | ()) |
53 | |
54 | (defclass effective-user-data-slot-definition (effective-virtual-slot-definition) |
55 | ()) |
56 | |
2176a9c7 |
57 | |
58 | (defbinding %object-ref () pointer |
59 | (location pointer)) |
60 | |
61 | (defbinding %object-unref () nil |
62 | (location pointer)) |
63 | |
0090bb5e |
64 | #+glib2.8 |
008c81d9 |
65 | (progn |
66 | (defcallback toggle-ref-callback (nil (data pointer) (location pointer) (last-ref-p boolean)) |
09f6e237 |
67 | #+debug-ref-counting |
68 | (if last-ref-p |
69 | (format t "Object at 0x~8,'0X has no foreign references~%" (sap-int location)) |
70 | (format t "Foreign reference added to object at 0x~8,'0X~%" (sap-int location))) |
008c81d9 |
71 | (if last-ref-p |
72 | (cache-instance (find-cached-instance location) t) |
73 | (cache-instance (find-cached-instance location) nil))) |
74 | |
75 | (defbinding %object-add-toggle-ref () pointer |
76 | (location pointer) |
77 | ((callback toggle-ref-callback) pointer) |
78 | (nil null)) |
79 | |
80 | (defbinding %object-remove-toggle-ref () pointer |
81 | (location pointer) |
82 | ((callback toggle-ref-callback) pointer) |
83 | (nil null))) |
b036d261 |
84 | |
2176a9c7 |
85 | (defmethod reference-foreign ((class gobject-class) location) |
86 | (declare (ignore class)) |
5eb27832 |
87 | (%object-ref location)) |
2176a9c7 |
88 | |
89 | (defmethod unreference-foreign ((class gobject-class) location) |
90 | (declare (ignore class)) |
008c81d9 |
91 | (%object-unref location)) |
b036d261 |
92 | |
008c81d9 |
93 | #+debug-ref-counting |
94 | (progn |
95 | (defcallback weak-ref-callback (nil (data pointer) (location pointer)) |
96 | (format t "Object at 0x~8,'0X being finalized~%" (sap-int location))) |
97 | |
98 | (defbinding %object-weak-ref () pointer |
99 | (location pointer) |
100 | ((callback weak-ref-callback) pointer) |
101 | (nil null))) |
2176a9c7 |
102 | |
103 | |
104 | ; (defbinding object-class-install-param () nil |
105 | ; (class pointer) |
106 | ; (id unsigned-int) |
107 | ; (parameter parameter)) |
108 | |
109 | ; (defbinding object-class-find-param-spec () parameter |
110 | ; (class pointer) |
111 | ; (name string)) |
112 | |
113 | (defun signal-name-to-string (name) |
114 | (substitute #\_ #\- (string-downcase (string name)))) |
115 | |
116 | |
117 | (defmethod direct-slot-definition-class ((class gobject-class) &rest initargs) |
118 | (case (getf initargs :allocation) |
119 | (:property (find-class 'direct-property-slot-definition)) |
174e8a5c |
120 | (:user-data (find-class 'direct-user-data-slot-definition)) |
2176a9c7 |
121 | (t (call-next-method)))) |
122 | |
123 | (defmethod effective-slot-definition-class ((class gobject-class) &rest initargs) |
124 | (case (getf initargs :allocation) |
125 | (:property (find-class 'effective-property-slot-definition)) |
174e8a5c |
126 | (:user-data (find-class 'effective-user-data-slot-definition)) |
2176a9c7 |
127 | (t (call-next-method)))) |
128 | |
129 | (defmethod compute-effective-slot-definition-initargs ((class gobject-class) direct-slotds) |
eeda1c2d |
130 | (if (typep (first direct-slotds) 'direct-property-slot-definition) |
2176a9c7 |
131 | (nconc |
132 | (list :pname (signal-name-to-string |
133 | (most-specific-slot-value direct-slotds 'pname)) |
134 | :readable (most-specific-slot-value direct-slotds 'readable) |
135 | :writable (most-specific-slot-value direct-slotds 'writable) |
136 | :construct (most-specific-slot-value direct-slotds 'construct)) |
137 | (call-next-method)) |
138 | (call-next-method))) |
139 | |
140 | |
141 | (defmethod initialize-internal-slot-functions ((slotd effective-property-slot-definition)) |
dfa4f314 |
142 | (let ((type (slot-definition-type slotd)) |
143 | (pname (slot-definition-pname slotd))) |
eeda1c2d |
144 | (when (and (not (slot-boundp slotd 'getter)) (slot-readable-p slotd)) |
2176a9c7 |
145 | (setf |
eeda1c2d |
146 | (slot-value slotd 'getter) |
dfa4f314 |
147 | (let ((reader nil)) |
eeda1c2d |
148 | #'(lambda (object) |
21299acf |
149 | (unless reader |
150 | (setq reader (reader-function type))) |
dfa4f314 |
151 | (let ((gvalue (gvalue-new type))) |
eeda1c2d |
152 | (%object-get-property object pname gvalue) |
153 | (unwind-protect |
154 | (funcall reader gvalue +gvalue-value-offset+) |
155 | (gvalue-free gvalue t))))))) |
2176a9c7 |
156 | |
eeda1c2d |
157 | (when (and (not (slot-boundp slotd 'setter)) (slot-writable-p slotd)) |
2176a9c7 |
158 | (setf |
eeda1c2d |
159 | (slot-value slotd 'setter) |
dfa4f314 |
160 | (let ((writer nil)) |
eeda1c2d |
161 | #'(lambda (value object) |
21299acf |
162 | (unless writer |
163 | (setq writer (writer-function type))) |
dfa4f314 |
164 | (let ((gvalue (gvalue-new type))) |
eeda1c2d |
165 | (funcall writer value gvalue +gvalue-value-offset+) |
166 | (%object-set-property object pname gvalue) |
167 | (gvalue-free gvalue t) |
168 | value)))))) |
169 | |
2176a9c7 |
170 | (call-next-method)) |
171 | |
174e8a5c |
172 | (defmethod initialize-internal-slot-functions ((slotd effective-user-data-slot-definition)) |
173 | (let ((slot-name (slot-definition-name slotd))) |
56870989 |
174 | (unless (slot-boundp slotd 'getter) |
175 | (setf |
176 | (slot-value slotd 'getter) |
177 | #'(lambda (object) |
178 | (prog1 (user-data object slot-name))))) |
179 | (unless (slot-boundp slotd 'setter) |
180 | (setf |
181 | (slot-value slotd 'setter) |
182 | #'(lambda (value object) |
183 | (setf (user-data object slot-name) value)))) |
184 | (unless (slot-boundp slotd 'boundp) |
185 | (setf |
186 | (slot-value slotd 'boundp) |
187 | #'(lambda (object) |
188 | (user-data-p object slot-name))))) |
174e8a5c |
189 | (call-next-method)) |
190 | |
b036d261 |
191 | (defmethod shared-initialize :after ((class gobject-class) names &rest initargs) |
192 | (declare (ignore initargs)) |
193 | (when (some #'(lambda (slotd) |
194 | (and |
195 | (eq (slot-definition-allocation slotd) :instance) |
e2ebafb1 |
196 | (not (typep slotd 'effective-special-slot-definition)))) |
b036d261 |
197 | (class-slots class)) |
198 | (setf (slot-value class 'instance-slots-p) t))) |
199 | |
200 | |
2176a9c7 |
201 | |
202 | ;;;; Super class for all classes in the GObject type hierarchy |
203 | |
560af5c5 |
204 | (eval-when (:compile-toplevel :load-toplevel :execute) |
c8c48a4c |
205 | (defclass gobject (ginstance) |
560af5c5 |
206 | () |
2176a9c7 |
207 | (:metaclass gobject-class) |
dfa4f314 |
208 | (:gtype "GObject"))) |
9adccb27 |
209 | |
eeda1c2d |
210 | |
211 | (defun initial-add (object function initargs key pkey) |
212 | (loop |
213 | as (initarg value . rest) = initargs then rest |
214 | do (cond |
215 | ((eq initarg key) (funcall function object value)) |
216 | ((eq initarg pkey) (mapc #'(lambda (value) |
217 | (funcall function object value)) |
218 | value))) |
219 | while rest)) |
220 | |
221 | (defun initial-apply-add (object function initargs key pkey) |
222 | (initial-add object #'(lambda (object value) |
223 | (apply function object (mklist value))) |
224 | initargs key pkey)) |
225 | |
226 | |
8958fa4a |
227 | (defmethod make-proxy-instance ((class gobject-class) location &rest initargs) |
228 | (declare (ignore location initargs)) |
229 | (if (slot-value class 'instance-slots-p) |
230 | (error "An object of class ~A has instance slots and should only be created with MAKE-INSTANCE" class) |
231 | (call-next-method))) |
232 | |
008c81d9 |
233 | (defmethod initialize-instance :around ((object gobject) &rest initargs) |
234 | (declare (ignore initargs)) |
235 | (call-next-method) |
09f6e237 |
236 | #+debug-ref-counting(%object-weak-ref (foreign-location object)) |
008c81d9 |
237 | #+glib2.8 |
238 | (when (slot-value (class-of object) 'instance-slots-p) |
239 | (with-slots (location) object |
240 | (%object-add-toggle-ref location) |
241 | (%object-unref location)))) |
242 | |
243 | |
82747bbd |
244 | (defmethod initialize-instance ((object gobject) &rest initargs) |
040579dd |
245 | (unless (slot-boundp object 'location) |
b036d261 |
246 | ;; Extract initargs which we should pass directly to the GObject |
040579dd |
247 | ;; constructor |
248 | (let* ((slotds (class-slots (class-of object))) |
249 | (args (when initargs |
250 | (loop |
251 | as (key value . rest) = initargs then rest |
252 | as slotd = (find-if |
253 | #'(lambda (slotd) |
254 | (member key (slot-definition-initargs slotd))) |
255 | slotds) |
256 | when (and (typep slotd 'effective-property-slot-definition) |
257 | (slot-value slotd 'construct)) |
258 | collect (progn |
259 | (remf initargs key) |
260 | (list |
261 | (slot-definition-pname slotd) |
262 | (slot-definition-type slotd) |
263 | value)) |
264 | while rest)))) |
265 | (if args |
266 | (let* ((string-size (size-of 'string)) |
267 | (string-writer (writer-function 'string)) |
268 | (string-destroy (destroy-function 'string)) |
269 | (params (allocate-memory |
270 | (* (length args) (+ string-size +gvalue-size+))))) |
9adccb27 |
271 | (loop |
040579dd |
272 | for (pname type value) in args |
9adccb27 |
273 | as tmp = params then (sap+ tmp (+ string-size +gvalue-size+)) |
040579dd |
274 | do (funcall string-writer pname tmp) |
275 | (gvalue-init (sap+ tmp string-size) type value)) |
276 | (unwind-protect |
277 | (setf |
278 | (slot-value object 'location) |
279 | (%gobject-newv (type-number-of object) (length args) params)) |
280 | (loop |
281 | repeat (length args) |
282 | as tmp = params then (sap+ tmp (+ string-size +gvalue-size+)) |
283 | do (funcall string-destroy tmp) |
284 | (gvalue-unset (sap+ tmp string-size))) |
285 | (deallocate-memory params))) |
8755b1a5 |
286 | (setf |
287 | (slot-value object 'location) |
040579dd |
288 | (%gobject-new (type-number-of object)))))) |
8755b1a5 |
289 | |
4d83a8a6 |
290 | (apply #'call-next-method object initargs)) |
291 | |
292 | |
1dbf4216 |
293 | (defmethod instance-finalizer ((instance gobject)) |
09f6e237 |
294 | (let ((location (foreign-location instance))) |
0090bb5e |
295 | #+glib2.8 |
b036d261 |
296 | (if (slot-value (class-of instance) 'instance-slots-p) |
297 | #'(lambda () |
008c81d9 |
298 | #+debug-ref-counting |
299 | (format t "Finalizing proxy for 0x~8,'0X~%" (sap-int location)) |
b036d261 |
300 | (remove-cached-instance location) |
301 | (%object-remove-toggle-ref location)) |
302 | #'(lambda () |
008c81d9 |
303 | #+debug-ref-counting |
304 | (format t "Finalizing proxy for 0x~8,'0X~%" (sap-int location)) |
b036d261 |
305 | (remove-cached-instance location) |
5eb27832 |
306 | (%object-unref location))) |
0090bb5e |
307 | #-glib2.8 |
5eb27832 |
308 | #'(lambda () |
309 | (remove-cached-instance location) |
310 | (%object-unref location)))) |
1dbf4216 |
311 | |
9adccb27 |
312 | |
d4b21b08 |
313 | (defbinding (%gobject-new "g_object_new") () pointer |
a9044181 |
314 | (type type-number) |
315 | (nil null)) |
560af5c5 |
316 | |
9adccb27 |
317 | (defbinding (%gobject-newv "g_object_newv") () pointer |
4d83a8a6 |
318 | (type type-number) |
319 | (n-parameters unsigned-int) |
9adccb27 |
320 | (params pointer)) |
de8516ca |
321 | |
322 | |
d4b21b08 |
323 | |
323d4265 |
324 | ;;;; Property stuff |
560af5c5 |
325 | |
26b133ed |
326 | (defbinding %object-set-property () nil |
c8c48a4c |
327 | (object gobject) |
328 | (name string) |
329 | (value gvalue)) |
86d9d6ab |
330 | |
26b133ed |
331 | (defbinding %object-get-property () nil |
c8c48a4c |
332 | (object gobject) |
333 | (name string) |
a9044181 |
334 | (value gvalue)) |
86d9d6ab |
335 | |
26b133ed |
336 | (defbinding %object-notify () nil |
c8c48a4c |
337 | (object gobject) |
338 | (name string)) |
86d9d6ab |
339 | |
26b133ed |
340 | (defbinding object-freeze-notify () nil |
a9044181 |
341 | (object gobject)) |
86d9d6ab |
342 | |
26b133ed |
343 | (defbinding object-thaw-notify () nil |
a9044181 |
344 | (object gobject)) |
86d9d6ab |
345 | |
a00ba56a |
346 | |
347 | ;;;; User data |
348 | |
26b133ed |
349 | (defbinding %object-set-qdata-full () nil |
86d9d6ab |
350 | (object gobject) |
351 | (id quark) |
352 | (data unsigned-long) |
353 | (destroy-marshal pointer)) |
354 | |
73572c12 |
355 | (defcallback user-data-destroy-func (nil (id unsigned-int)) |
356 | (destroy-user-data id)) |
357 | |
358 | (export 'user-data-destroy-func) |
359 | |
174e8a5c |
360 | (defun (setf user-data) (data object key) |
a00ba56a |
361 | (%object-set-qdata-full object (quark-intern key) |
73572c12 |
362 | (register-user-data data) (callback user-data-destroy-func)) |
86d9d6ab |
363 | data) |
364 | |
a00ba56a |
365 | ;; deprecated |
174e8a5c |
366 | (defun (setf object-data) (data object key &key (test #'eq)) |
367 | (assert (eq test #'eq)) |
368 | (setf (user-data object key) data)) |
369 | |
26b133ed |
370 | (defbinding %object-get-qdata () unsigned-long |
86d9d6ab |
371 | (object gobject) |
372 | (id quark)) |
373 | |
174e8a5c |
374 | (defun user-data (object key) |
a00ba56a |
375 | (find-user-data (%object-get-qdata object (quark-intern key)))) |
174e8a5c |
376 | |
a00ba56a |
377 | ;; deprecated |
86d9d6ab |
378 | (defun object-data (object key &key (test #'eq)) |
174e8a5c |
379 | (assert (eq test #'eq)) |
380 | (user-data object key)) |
381 | |
382 | (defun user-data-p (object key) |
a00ba56a |
383 | (user-data-exists-p (%object-get-qdata object (quark-intern key)))) |
384 | |
385 | (defbinding %object-steal-qdata () unsigned-long |
386 | (object gobject) |
387 | (id quark)) |
388 | |
389 | (defun unset-user-data (object key) |
390 | (destroy-user-data (%object-steal-qdata object (quark-intern key)))) |
86d9d6ab |
391 | |
392 | |
d4b21b08 |
393 | ;;;; |
394 | |
323d4265 |
395 | (defbinding %object-class-list-properties () pointer |
d4b21b08 |
396 | (class pointer) |
397 | (n-properties unsigned-int :out)) |
398 | |
9c03a07c |
399 | |
400 | (defun %map-params (params length type inherited-p) |
401 | (if inherited-p |
9adccb27 |
402 | (map-c-vector 'list #'identity params 'param length) |
9c03a07c |
403 | (let ((properties ())) |
9adccb27 |
404 | (map-c-vector 'list |
9c03a07c |
405 | #'(lambda (param) |
406 | (when (eql (param-owner-type param) type) |
407 | (push param properties))) |
408 | params 'param length) |
409 | (nreverse properties)))) |
410 | |
411 | (defun query-object-class-properties (type &optional inherited-p) |
735a29da |
412 | (let* ((type-number (find-type-number type t)) |
9c03a07c |
413 | (class (type-class-ref type-number))) |
414 | (unwind-protect |
415 | (multiple-value-bind (array length) |
416 | (%object-class-list-properties class) |
21299acf |
417 | (unless (null-pointer-p array) |
418 | (unwind-protect |
419 | (%map-params array length type-number inherited-p) |
420 | (deallocate-memory array)))) |
9c03a07c |
421 | ; (type-class-unref type-number) |
422 | ))) |
d4b21b08 |
423 | |
424 | |
425 | (defun default-slot-name (name) |
426 | (intern (substitute #\- #\_ (string-upcase (string-upcase name))))) |
427 | |
428 | (defun default-slot-accessor (class-name slot-name type) |
429 | (intern |
430 | (format |
431 | nil "~A-~A~A" class-name slot-name |
4d83a8a6 |
432 | (if (eq type 'boolean) "-P" "")))) |
d4b21b08 |
433 | |
323d4265 |
434 | |
646466b0 |
435 | (defun slot-definition-from-property (class property &optional slot-name args) |
9c03a07c |
436 | (with-slots (name flags value-type documentation) property |
646466b0 |
437 | (let* ((slot-name (or slot-name (default-slot-name name))) |
62f12808 |
438 | (slot-type (or (getf args :type) (type-from-number value-type) 'pointer)) |
9c03a07c |
439 | (accessor (default-slot-accessor class slot-name slot-type))) |
440 | |
441 | `(,slot-name |
442 | :allocation :property :pname ,name |
eeda1c2d |
443 | |
735a29da |
444 | ,@(when (find :unbound args) (list :unbound (getf args :unbound))) |
445 | ,@(when (find :getter args) (list :getter (getf args :getter))) |
446 | ,@(when (find :setter args) (list :setter (getf args :setter))) |
9c03a07c |
447 | |
448 | ;; accessors |
449 | ,@(cond |
450 | ((and |
451 | (member :writable flags) (member :readable flags) |
452 | (not (member :construct-only flags))) |
453 | (list :accessor accessor)) |
454 | ((and (member :writable flags) (not (member :construct-only flags))) |
455 | (list :writer `(setf ,accessor))) |
456 | ((member :readable flags) |
457 | (list :reader accessor))) |
458 | |
459 | ;; readable/writable/construct |
460 | ,@(when (or (not (member :writable flags)) |
461 | (member :construct-only flags)) |
462 | '(:writable nil)) |
463 | ,@(when (not (member :readable flags)) |
464 | '(:readable nil)) |
465 | ,@(when (or (member :construct flags) |
466 | (member :construct-only flags)) |
467 | '(:construct t)) |
468 | |
469 | ;; initargs |
e5c7586b |
470 | ,@(if (find :initarg args) |
471 | (let ((initarg (getf args :initarg))) |
472 | (etypecase initarg |
473 | (null ()) |
474 | (symbol `(:initarg ,initarg)))) |
475 | (when (or (member :construct flags) |
476 | (member :construct-only flags) |
477 | (member :writable flags)) |
478 | (list :initarg (intern (string slot-name) "KEYWORD")))) |
9c03a07c |
479 | |
480 | :type ,slot-type |
481 | :documentation ,documentation)))) |
482 | |
483 | |
484 | (defun slot-definitions (class properties slots) |
485 | (loop |
9c03a07c |
486 | for property in properties |
eeda1c2d |
487 | as slot = (or |
488 | (find (param-name property) slots |
489 | :key #'(lambda (slot) (getf (rest slot) :pname)) |
490 | :test #'string=) |
491 | (find (param-name property) slots |
492 | :key #'first :test #'string-equal)) |
493 | do (cond |
494 | ((not slot) |
495 | (push (slot-definition-from-property class property) slots)) |
496 | ((getf (rest slot) :merge) |
497 | (setf |
498 | (rest slot) |
646466b0 |
499 | (rest (slot-definition-from-property class property (first slot) (rest slot))))))) |
9c03a07c |
500 | (delete-if #'(lambda (slot) (getf (rest slot) :ignore)) slots)) |
501 | |
502 | |
62f12808 |
503 | (defun expand-gobject-type (type forward-p options &optional (metaclass 'gobject-class)) |
9c03a07c |
504 | (let ((supers (cons (supertype type) (implements type))) |
505 | (class (type-from-number type)) |
506 | (slots (getf options :slots))) |
507 | `(defclass ,class ,supers |
735a29da |
508 | ,(unless forward-p |
509 | (slot-definitions class (query-object-class-properties type) slots)) |
510 | (:metaclass ,metaclass) |
511 | (:gtype ,(register-type-as type))))) |
323d4265 |
512 | |
62f12808 |
513 | (defun gobject-dependencies (type) |
21299acf |
514 | (delete-duplicates |
515 | (cons |
516 | (supertype type) |
517 | (append |
518 | (type-interfaces type) |
519 | (mapcar #'param-value-type (query-object-class-properties type)))))) |
d4b21b08 |
520 | |
62f12808 |
521 | |
522 | (register-derivable-type 'gobject "GObject" 'expand-gobject-type 'gobject-dependencies) |
ae37d096 |
523 | |
524 | |
525 | ;;; Pseudo type for gobject instances which have their reference count |
526 | ;;; increased by the returning function |
527 | |
528 | (defmethod alien-type ((type (eql 'referenced)) &rest args) |
529 | (declare (ignore type args)) |
530 | (alien-type 'gobject)) |
531 | |
532 | (defmethod from-alien-form (form (type (eql 'referenced)) &rest args) |
533 | (declare (ignore type)) |
534 | (destructuring-bind (type) args |
535 | (if (subtypep type 'gobject) |
536 | (let ((instance (make-symbol "INSTANCE"))) |
537 | `(let ((,instance ,(from-alien-form form type))) |
538 | (when ,instance |
09f6e237 |
539 | (%object-unref (foreign-location ,instance))) |
ae37d096 |
540 | ,instance)) |
541 | (error "~A is not a subclass of GOBJECT" type)))) |
542 | |
543 | (export 'referenced) |