560af5c5 |
1 | ;; Common Lisp bindings for GTK+ v2.0 |
d4b21b08 |
2 | ;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.cs.uit.no> |
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 | |
d168bafd |
18 | ;; $Id: gtype.lisp,v 1.19 2004-11-07 01:21:04 espen Exp $ |
560af5c5 |
19 | |
20 | (in-package "GLIB") |
21 | |
22 | (use-prefix "g") |
23 | |
e0349dbd |
24 | ;; Initialize the glib type system |
25 | (defbinding type-init () nil) |
26 | (type-init) |
560af5c5 |
27 | |
28 | (deftype type-number () '(unsigned 32)) |
29 | |
93aa67db |
30 | (eval-when (:compile-toplevel :load-toplevel :execute) |
d4b21b08 |
31 | (defclass type-query (struct) |
93aa67db |
32 | ((type-number :allocation :alien :type type-number) |
33 | (name :allocation :alien :type string) |
34 | (class-size :allocation :alien :type unsigned-int) |
35 | (instance-size :allocation :alien :type unsigned-int)) |
d168bafd |
36 | (:metaclass struct-class))) |
93aa67db |
37 | |
38 | |
93aa67db |
39 | (defbinding %type-query () nil |
40 | (type type-number) |
41 | (query type-query)) |
42 | |
43 | (defun type-query (type) |
44 | (let ((query (make-instance 'type-query))) |
d4b21b08 |
45 | (%type-query (find-type-number type t) query) |
93aa67db |
46 | query)) |
47 | |
48 | (defun type-instance-size (type) |
49 | (slot-value (type-query type) 'instance-size)) |
50 | |
51 | (defun type-class-size (type) |
52 | (slot-value (type-query type) 'class-size)) |
560af5c5 |
53 | |
d4b21b08 |
54 | (defbinding type-class-ref (type) pointer |
55 | ((find-type-number type t) type-number)) |
560af5c5 |
56 | |
d4b21b08 |
57 | (defbinding type-class-unref (type) nil |
58 | ((find-type-number type t) type-number)) |
93aa67db |
59 | |
d4b21b08 |
60 | (defbinding type-class-peek (type) pointer |
61 | ((find-type-number type t) type-number)) |
93aa67db |
62 | |
560af5c5 |
63 | |
d4b21b08 |
64 | ;;;; Mapping between lisp types and glib types |
560af5c5 |
65 | |
66 | (defvar *type-to-number-hash* (make-hash-table)) |
67 | (defvar *number-to-type-hash* (make-hash-table)) |
68 | |
d4b21b08 |
69 | (defun register-type (type id) |
70 | (let ((type-number |
71 | (etypecase id |
72 | (integer id) |
4d83a8a6 |
73 | (string (find-type-number id t)) |
74 | (symbol (gethash id *type-to-number-hash*))))) |
d4b21b08 |
75 | (setf (gethash type *type-to-number-hash*) type-number) |
4d83a8a6 |
76 | (unless (symbolp id) |
77 | (setf (gethash type-number *number-to-type-hash*) type)) |
d4b21b08 |
78 | type-number)) |
79 | |
80 | (defbinding %type-from-name () type-number |
81 | (name string)) |
82 | |
83 | (defun find-type-number (type &optional error) |
560af5c5 |
84 | (etypecase type |
85 | (integer type) |
d4b21b08 |
86 | (string |
87 | (let ((type-number (%type-from-name type))) |
88 | (cond |
89 | ((and (zerop type-number) error) |
d168bafd |
90 | (error "Invalid gtype name: ~A" type)) |
d4b21b08 |
91 | ((zerop type-number) nil) |
92 | (t type-number)))) |
93 | (symbol |
94 | (let ((type-number (gethash type *type-to-number-hash*))) |
95 | (or |
96 | type-number |
97 | (and error (error "Type not registered: ~A" type))))) |
98 | (pcl::class (find-type-number (class-name type) error)))) |
560af5c5 |
99 | |
4de90d10 |
100 | (defun type-from-number (type-number &optional error) |
101 | (multiple-value-bind (type found) |
102 | (gethash type-number *number-to-type-hash*) |
103 | (when (and error (not found)) |
104 | (let ((name (find-type-name type-number))) |
105 | (if name |
106 | (error "Type number not registered: ~A (~A)" type-number name) |
107 | (error "Invalid type number: ~A" type-number)))) |
108 | type)) |
560af5c5 |
109 | |
d4b21b08 |
110 | (defun type-from-name (name) |
111 | (etypecase name |
112 | (string (type-from-number (find-type-number name t))))) |
560af5c5 |
113 | |
d4b21b08 |
114 | (defbinding (find-type-name "g_type_name") (type) string |
115 | ((find-type-number type t) type-number)) |
116 | |
117 | (defun type-number-of (object) |
118 | (find-type-number (type-of object) t)) |
119 | |
120 | (defun init-type (init) |
121 | (mapc |
122 | #'(lambda (fname) |
123 | (funcall (mkbinding fname 'type-number))) |
124 | (mklist init))) |
125 | |
d168bafd |
126 | (defun %init-types-in-library (pathname prefix ignore) |
d4b21b08 |
127 | (let ((process (ext:run-program |
0c0db5e2 |
128 | "nm" (list "-D" (namestring (truename pathname))) |
d4b21b08 |
129 | :output :stream :wait nil)) |
130 | (fnames ())) |
131 | (labels ((read-symbols () |
132 | (let ((line (read-line (ext:process-output process) nil))) |
133 | (when line |
4de90d10 |
134 | (let ((symbol (subseq line 11))) |
135 | (when (and |
d168bafd |
136 | (> (length symbol) (length prefix)) |
137 | (string= prefix symbol :end2 (length prefix)) |
4de90d10 |
138 | (search "_get_type" symbol) |
139 | (not (member symbol ignore :test #'string=))) |
140 | (push symbol fnames))) |
d4b21b08 |
141 | (read-symbols))))) |
142 | (read-symbols) |
143 | (ext:process-close process) |
144 | `(init-type ',fnames)))) |
560af5c5 |
145 | |
d168bafd |
146 | (defmacro init-types-in-library (filename &key (prefix "") ignore) |
147 | (%init-types-in-library filename prefix ignore)) |
4de90d10 |
148 | |
149 | |
560af5c5 |
150 | |
93aa67db |
151 | ;;;; Superclass for wrapping types in the glib type system |
560af5c5 |
152 | |
153 | (eval-when (:compile-toplevel :load-toplevel :execute) |
93aa67db |
154 | (defclass ginstance (proxy) |
d4b21b08 |
155 | ((class :allocation :alien :type pointer)) |
156 | (:metaclass proxy-class))) |
560af5c5 |
157 | |
93aa67db |
158 | (defun %type-of-ginstance (location) |
159 | (let ((class (sap-ref-sap location 0))) |
d168bafd |
160 | (type-from-number (sap-ref-32 class 0)))) |
560af5c5 |
161 | |
d168bafd |
162 | (defmethod ensure-proxy-instance ((class ginstance-class) location) |
163 | (declare (ignore class)) |
164 | (let ((class (find-class (%type-of-ginstance location)))) |
165 | (if class |
166 | (make-instance class :location (reference-foreign class location)) |
167 | ;; TODO: (make-instance 'ginstance ...) |
168 | location))) |
560af5c5 |
169 | |
170 | |
93aa67db |
171 | ;;;; Metaclass for subclasses of ginstance |
560af5c5 |
172 | |
173 | (eval-when (:compile-toplevel :load-toplevel :execute) |
4d83a8a6 |
174 | (defclass ginstance-class (proxy-class) |
175 | ())) |
560af5c5 |
176 | |
177 | |
c8c48a4c |
178 | (defmethod shared-initialize ((class ginstance-class) names |
d168bafd |
179 | &rest initargs &key name alien-name) |
180 | (declare (ignore names)) |
93aa67db |
181 | (let* ((class-name (or name (class-name class))) |
182 | (type-number |
d4b21b08 |
183 | (find-type-number |
4de90d10 |
184 | (or (first alien-name) (default-alien-type-name class-name)) t))) |
d4b21b08 |
185 | (register-type class-name type-number) |
4d83a8a6 |
186 | (if (getf initargs :size) |
187 | (call-next-method) |
188 | (let ((size (type-instance-size type-number))) |
d168bafd |
189 | (apply #'call-next-method class names :size (list size) initargs))))) |
190 | |
191 | |
192 | (defmethod validate-superclass ((class ginstance-class) (super standard-class)) |
c8c48a4c |
193 | (subtypep (class-name super) 'ginstance)) |
560af5c5 |
194 | |
195 | |
d4b21b08 |
196 | ;;;; Registering fundamental types |
197 | |
198 | (register-type 'pointer "gpointer") |
199 | (register-type 'char "gchar") |
200 | (register-type 'unsigned-char "guchar") |
201 | (register-type 'boolean "gboolean") |
202 | (register-type 'fixnum "gint") |
203 | (register-type 'int "gint") |
204 | (register-type 'unsigned-int "guint") |
205 | (register-type 'long "glong") |
206 | (register-type 'unsigned-long "gulong") |
207 | (register-type 'single-float "gfloat") |
208 | (register-type 'double-float "gdouble") |
4de90d10 |
209 | (register-type 'string "gchararray") |
d4b21b08 |
210 | |
211 | |
212 | ;;;; |
213 | |
e77e7713 |
214 | (defvar *derivable-type-info* (make-hash-table)) |
d4b21b08 |
215 | |
e77e7713 |
216 | (defun register-derivable-type (type id expander) |
d4b21b08 |
217 | (register-type type id) |
e77e7713 |
218 | (let ((type-number (register-type type id))) |
219 | (setf (gethash type-number *derivable-type-info*) expander))) |
d4b21b08 |
220 | |
4de90d10 |
221 | (defun find-type-info (type) |
222 | (dolist (super (cdr (type-hierarchy type))) |
e77e7713 |
223 | (let ((info (gethash super *derivable-type-info*))) |
4de90d10 |
224 | (return-if info)))) |
225 | |
e77e7713 |
226 | (defun expand-type-definition (type options) |
227 | (let ((expander (find-type-info type))) |
228 | (funcall expander (find-type-number type t) options))) |
d4b21b08 |
229 | |
d4b21b08 |
230 | (defbinding type-parent (type) type-number |
231 | ((find-type-number type t) type-number)) |
232 | |
233 | (defun supertype (type) |
234 | (type-from-number (type-parent type))) |
235 | |
337933d8 |
236 | (defbinding %type-interfaces (type) pointer |
237 | ((find-type-number type t) type-number) |
238 | (n-interfaces unsigned-int :out)) |
239 | |
240 | (defun type-interfaces (type) |
241 | (multiple-value-bind (array length) (%type-interfaces type) |
242 | (unwind-protect |
d168bafd |
243 | (map-c-vector 'list #'identity array 'type-number length) |
337933d8 |
244 | (deallocate-memory array)))) |
245 | |
246 | (defun implements (type) |
247 | (mapcar #'type-from-number (type-interfaces type))) |
248 | |
d4b21b08 |
249 | (defun type-hierarchy (type) |
250 | (let ((type-number (find-type-number type t))) |
251 | (unless (= type-number 0) |
252 | (cons type-number (type-hierarchy (type-parent type-number)))))) |
253 | |
254 | (defbinding (type-is-p "g_type_is_a") (type super) boolean |
255 | ((find-type-number type) type-number) |
256 | ((find-type-number super) type-number)) |
257 | |
258 | (defbinding %type-children () pointer |
259 | (type-number type-number) |
260 | (num-children unsigned-int :out)) |
261 | |
262 | (defun map-subtypes (function type &optional prefix) |
263 | (let ((type-number (find-type-number type t))) |
264 | (multiple-value-bind (array length) (%type-children type-number) |
265 | (unwind-protect |
d168bafd |
266 | (map-c-vector |
d4b21b08 |
267 | 'nil |
268 | #'(lambda (type-number) |
269 | (when (or |
270 | (not prefix) |
271 | (string-prefix-p prefix (find-type-name type-number))) |
272 | (funcall function type-number)) |
273 | (map-subtypes function type-number prefix)) |
274 | array 'type-number length) |
275 | (deallocate-memory array))))) |
276 | |
277 | (defun find-types (prefix) |
278 | (let ((type-list nil)) |
e77e7713 |
279 | (maphash |
280 | #'(lambda (type-number expander) |
281 | (declare (ignore expander)) |
282 | (map-subtypes |
283 | #'(lambda (type-number) |
284 | (pushnew type-number type-list)) |
285 | type-number prefix)) |
286 | *derivable-type-info*) |
d4b21b08 |
287 | type-list)) |
288 | |
289 | (defun %sort-types-topologicaly (unsorted) |
290 | (let ((sorted ())) |
291 | (loop while unsorted do |
292 | (dolist (type unsorted) |
337933d8 |
293 | (let ((dependencies |
294 | (append (rest (type-hierarchy type)) (type-interfaces type)))) |
d4b21b08 |
295 | (cond |
296 | ((null dependencies) |
297 | (push type sorted) |
298 | (setq unsorted (delete type unsorted))) |
299 | (t |
300 | (unless (dolist (dep dependencies) |
e77e7713 |
301 | (when (find type (rest (type-hierarchy dep))) |
302 | (error "Cyclic type dependencie")) |
d4b21b08 |
303 | (return-if (find dep unsorted))) |
304 | (push type sorted) |
305 | (setq unsorted (delete type unsorted)))))))) |
306 | (nreverse sorted))) |
307 | |
308 | |
309 | (defun expand-type-definitions (prefix &optional args) |
e77e7713 |
310 | (flet ((type-options (type-number) |
d4b21b08 |
311 | (let ((name (find-type-name type-number))) |
4de90d10 |
312 | (cdr (assoc name args :test #'string=))))) |
d4b21b08 |
313 | |
e77e7713 |
314 | (let ((type-list |
315 | (delete-if |
316 | #'(lambda (type-number) |
317 | (let ((name (find-type-name type-number))) |
318 | (or |
319 | (getf (type-options type-number) :ignore) |
320 | (find-if |
321 | #'(lambda (options) |
322 | (and |
323 | (string-prefix-p (first options) name) |
80a09c29 |
324 | (getf (cdr options) :ignore-prefix) |
325 | (not (some |
326 | #'(lambda (exception) |
327 | (string= name exception)) |
328 | (getf (cdr options) :except))))) |
e77e7713 |
329 | args)))) |
330 | (find-types prefix)))) |
d4b21b08 |
331 | |
e77e7713 |
332 | (dolist (type-number type-list) |
333 | (let ((name (find-type-name type-number))) |
334 | (register-type |
335 | (getf (type-options type-number) :type (default-type-name name)) |
336 | type-number))) |
337 | |
338 | `(progn |
339 | ,@(mapcar |
340 | #'(lambda (type) |
341 | (expand-type-definition type (type-options type))) |
342 | (%sort-types-topologicaly type-list)))))) |
343 | |
d4b21b08 |
344 | (defmacro define-types-by-introspection (prefix &rest args) |
4de90d10 |
345 | (expand-type-definitions prefix args)) |
e77e7713 |
346 | |
347 | |
348 | |