0d07716f |
1 | ;; Common Lisp bindings for GTK+ v2.0 |
3a935dfa |
2 | ;; Copyright (C) 2000-2001 Espen S. Johnsen <esj@stud.cs.uit.no> |
0d07716f |
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 | |
4812615b |
18 | ;; $Id: gtype.lisp,v 1.12 2001/10/21 21:50:18 espen Exp $ |
0d07716f |
19 | |
20 | (in-package "GLIB") |
21 | |
22 | (use-prefix "g") |
23 | |
0d07716f |
24 | ;;;; |
25 | |
26 | (deftype type-number () '(unsigned 32)) |
27 | |
fc47a022 |
28 | (eval-when (:compile-toplevel :load-toplevel :execute) |
3a935dfa |
29 | (defclass type-query (struct) |
fc47a022 |
30 | ((type-number :allocation :alien :type type-number) |
31 | (name :allocation :alien :type string) |
32 | (class-size :allocation :alien :type unsigned-int) |
33 | (instance-size :allocation :alien :type unsigned-int)) |
34 | (:metaclass proxy-class))) |
35 | |
36 | |
fc47a022 |
37 | (defbinding %type-query () nil |
38 | (type type-number) |
39 | (query type-query)) |
40 | |
41 | (defun type-query (type) |
42 | (let ((query (make-instance 'type-query))) |
3a935dfa |
43 | (%type-query (find-type-number type t) query) |
fc47a022 |
44 | query)) |
45 | |
46 | (defun type-instance-size (type) |
47 | (slot-value (type-query type) 'instance-size)) |
48 | |
49 | (defun type-class-size (type) |
50 | (slot-value (type-query type) 'class-size)) |
0d07716f |
51 | |
3a935dfa |
52 | (defbinding type-class-ref (type) pointer |
53 | ((find-type-number type t) type-number)) |
0d07716f |
54 | |
3a935dfa |
55 | (defbinding type-class-unref (type) nil |
56 | ((find-type-number type t) type-number)) |
fc47a022 |
57 | |
3a935dfa |
58 | (defbinding type-class-peek (type) pointer |
59 | ((find-type-number type t) type-number)) |
fc47a022 |
60 | |
0d07716f |
61 | |
3a935dfa |
62 | ;;;; Mapping between lisp types and glib types |
0d07716f |
63 | |
64 | (defvar *type-to-number-hash* (make-hash-table)) |
65 | (defvar *number-to-type-hash* (make-hash-table)) |
66 | |
3a935dfa |
67 | (defun register-type (type id) |
68 | (let ((type-number |
69 | (etypecase id |
70 | (integer id) |
71 | (string (find-type-number id t))))) |
72 | (setf (gethash type *type-to-number-hash*) type-number) |
73 | (setf (gethash type-number *number-to-type-hash*) type) |
74 | type-number)) |
75 | |
76 | (defbinding %type-from-name () type-number |
77 | (name string)) |
78 | |
79 | (defun find-type-number (type &optional error) |
0d07716f |
80 | (etypecase type |
81 | (integer type) |
3a935dfa |
82 | (string |
83 | (let ((type-number (%type-from-name type))) |
84 | (cond |
85 | ((and (zerop type-number) error) |
86 | (error "Invalid alien type name: ~A" type)) |
87 | ((zerop type-number) nil) |
88 | (t type-number)))) |
89 | (symbol |
90 | (let ((type-number (gethash type *type-to-number-hash*))) |
91 | (or |
92 | type-number |
93 | (and error (error "Type not registered: ~A" type))))) |
94 | (pcl::class (find-type-number (class-name type) error)))) |
0d07716f |
95 | |
b011356b |
96 | (defun type-from-number (type-number &optional error) |
97 | (multiple-value-bind (type found) |
98 | (gethash type-number *number-to-type-hash*) |
99 | (when (and error (not found)) |
100 | (let ((name (find-type-name type-number))) |
101 | (if name |
102 | (error "Type number not registered: ~A (~A)" type-number name) |
103 | (error "Invalid type number: ~A" type-number)))) |
104 | type)) |
0d07716f |
105 | |
3a935dfa |
106 | (defun type-from-name (name) |
107 | (etypecase name |
108 | (string (type-from-number (find-type-number name t))))) |
0d07716f |
109 | |
3a935dfa |
110 | (defbinding (find-type-name "g_type_name") (type) string |
111 | ((find-type-number type t) type-number)) |
112 | |
113 | (defun type-number-of (object) |
114 | (find-type-number (type-of object) t)) |
115 | |
116 | (defun init-type (init) |
117 | (mapc |
118 | #'(lambda (fname) |
119 | (funcall (mkbinding fname 'type-number))) |
120 | (mklist init))) |
121 | |
b011356b |
122 | (defun %init-types-in-library (pathname ignore) |
3a935dfa |
123 | (let ((process (ext:run-program |
124 | "nm" (list (namestring (truename pathname))) |
125 | :output :stream :wait nil)) |
126 | (fnames ())) |
127 | (labels ((read-symbols () |
128 | (let ((line (read-line (ext:process-output process) nil))) |
129 | (when line |
b011356b |
130 | (let ((symbol (subseq line 11))) |
131 | (when (and |
132 | (search "_get_type" symbol) |
133 | (not (member symbol ignore :test #'string=))) |
134 | (push symbol fnames))) |
3a935dfa |
135 | (read-symbols))))) |
136 | (read-symbols) |
137 | (ext:process-close process) |
138 | `(init-type ',fnames)))) |
0d07716f |
139 | |
b011356b |
140 | (defmacro init-types-in-library (pathname &key ignore) |
141 | (%init-types-in-library pathname ignore)) |
142 | |
143 | |
0d07716f |
144 | |
fc47a022 |
145 | ;;;; Superclass for wrapping types in the glib type system |
0d07716f |
146 | |
147 | (eval-when (:compile-toplevel :load-toplevel :execute) |
fc47a022 |
148 | (defclass ginstance (proxy) |
3a935dfa |
149 | ((class :allocation :alien :type pointer)) |
150 | (:metaclass proxy-class))) |
0d07716f |
151 | |
fc47a022 |
152 | (defun %type-of-ginstance (location) |
153 | (let ((class (sap-ref-sap location 0))) |
154 | (type-from-number (sap-ref-unsigned class 0)))) |
0d07716f |
155 | |
156 | (deftype-method translate-from-alien |
fc47a022 |
157 | ginstance (type-spec location &optional weak-ref) |
158 | (declare (ignore type-spec)) |
0d07716f |
159 | `(let ((location ,location)) |
160 | (unless (null-pointer-p location) |
fc47a022 |
161 | (ensure-proxy-instance |
162 | (%type-of-ginstance location) location ,weak-ref)))) |
0d07716f |
163 | |
0d07716f |
164 | |
165 | |
fc47a022 |
166 | ;;;; Metaclass for subclasses of ginstance |
0d07716f |
167 | |
168 | (eval-when (:compile-toplevel :load-toplevel :execute) |
3a935dfa |
169 | (defclass ginstance-class (proxy-class))) |
0d07716f |
170 | |
171 | |
c9819f3e |
172 | (defmethod shared-initialize ((class ginstance-class) names |
3a935dfa |
173 | &rest initargs &key name alien-name |
174 | size ref unref) |
0d07716f |
175 | (declare (ignore initargs names)) |
fc47a022 |
176 | (let* ((class-name (or name (class-name class))) |
177 | (type-number |
3a935dfa |
178 | (find-type-number |
b011356b |
179 | (or (first alien-name) (default-alien-type-name class-name)) t))) |
3a935dfa |
180 | (register-type class-name type-number) |
181 | (let ((size (or size (type-instance-size type-number)))) |
b011356b |
182 | (declare (special size)) |
3a935dfa |
183 | (call-next-method))) |
184 | |
185 | (when ref |
186 | (let ((ref (mkbinding (first ref) 'pointer 'pointer))) |
fc47a022 |
187 | (setf |
3a935dfa |
188 | (slot-value class 'copy) |
189 | #'(lambda (type location) |
190 | (declare (ignore type)) |
191 | (funcall ref location))))) |
192 | (when unref |
193 | (let ((unref (mkbinding (first unref) 'nil 'pointer))) |
fc47a022 |
194 | (setf |
3a935dfa |
195 | (slot-value class 'free) |
196 | #'(lambda (type location) |
197 | (declare (ignore type)) |
198 | (funcall unref location)))))) |
0d07716f |
199 | |
200 | |
201 | (defmethod validate-superclass |
c9819f3e |
202 | ((class ginstance-class) (super pcl::standard-class)) |
203 | (subtypep (class-name super) 'ginstance)) |
0d07716f |
204 | |
205 | |
3a935dfa |
206 | ;;;; Registering fundamental types |
207 | |
208 | (register-type 'pointer "gpointer") |
209 | (register-type 'char "gchar") |
210 | (register-type 'unsigned-char "guchar") |
211 | (register-type 'boolean "gboolean") |
212 | (register-type 'fixnum "gint") |
213 | (register-type 'int "gint") |
214 | (register-type 'unsigned-int "guint") |
215 | (register-type 'long "glong") |
216 | (register-type 'unsigned-long "gulong") |
217 | (register-type 'single-float "gfloat") |
218 | (register-type 'double-float "gdouble") |
b011356b |
219 | (register-type 'string "gchararray") |
3a935dfa |
220 | |
221 | |
222 | ;;;; |
223 | |
4812615b |
224 | (defvar *derivable-type-info* (make-hash-table)) |
3a935dfa |
225 | |
4812615b |
226 | (defun register-derivable-type (type id expander) |
3a935dfa |
227 | (register-type type id) |
4812615b |
228 | (let ((type-number (register-type type id))) |
229 | (setf (gethash type-number *derivable-type-info*) expander))) |
3a935dfa |
230 | |
b011356b |
231 | (defun find-type-info (type) |
232 | (dolist (super (cdr (type-hierarchy type))) |
4812615b |
233 | (let ((info (gethash super *derivable-type-info*))) |
b011356b |
234 | (return-if info)))) |
235 | |
4812615b |
236 | (defun expand-type-definition (type options) |
237 | (let ((expander (find-type-info type))) |
238 | (funcall expander (find-type-number type t) options))) |
3a935dfa |
239 | |
3a935dfa |
240 | (defbinding type-parent (type) type-number |
241 | ((find-type-number type t) type-number)) |
242 | |
243 | (defun supertype (type) |
244 | (type-from-number (type-parent type))) |
245 | |
246 | (defun type-hierarchy (type) |
247 | (let ((type-number (find-type-number type t))) |
248 | (unless (= type-number 0) |
249 | (cons type-number (type-hierarchy (type-parent type-number)))))) |
250 | |
251 | (defbinding (type-is-p "g_type_is_a") (type super) boolean |
252 | ((find-type-number type) type-number) |
253 | ((find-type-number super) type-number)) |
254 | |
255 | (defbinding %type-children () pointer |
256 | (type-number type-number) |
257 | (num-children unsigned-int :out)) |
258 | |
259 | (defun map-subtypes (function type &optional prefix) |
260 | (let ((type-number (find-type-number type t))) |
261 | (multiple-value-bind (array length) (%type-children type-number) |
262 | (unwind-protect |
263 | (map-c-array |
264 | 'nil |
265 | #'(lambda (type-number) |
266 | (when (or |
267 | (not prefix) |
268 | (string-prefix-p prefix (find-type-name type-number))) |
269 | (funcall function type-number)) |
270 | (map-subtypes function type-number prefix)) |
271 | array 'type-number length) |
272 | (deallocate-memory array))))) |
273 | |
274 | (defun find-types (prefix) |
275 | (let ((type-list nil)) |
4812615b |
276 | (maphash |
277 | #'(lambda (type-number expander) |
278 | (declare (ignore expander)) |
279 | (map-subtypes |
280 | #'(lambda (type-number) |
281 | (pushnew type-number type-list)) |
282 | type-number prefix)) |
283 | *derivable-type-info*) |
3a935dfa |
284 | type-list)) |
285 | |
286 | (defun %sort-types-topologicaly (unsorted) |
287 | (let ((sorted ())) |
288 | (loop while unsorted do |
289 | (dolist (type unsorted) |
4812615b |
290 | (let ((dependencies (rest (type-hierarchy type)))) |
3a935dfa |
291 | (cond |
292 | ((null dependencies) |
293 | (push type sorted) |
294 | (setq unsorted (delete type unsorted))) |
295 | (t |
296 | (unless (dolist (dep dependencies) |
4812615b |
297 | (when (find type (rest (type-hierarchy dep))) |
298 | (error "Cyclic type dependencie")) |
3a935dfa |
299 | (return-if (find dep unsorted))) |
300 | (push type sorted) |
301 | (setq unsorted (delete type unsorted)))))))) |
302 | (nreverse sorted))) |
303 | |
304 | |
305 | (defun expand-type-definitions (prefix &optional args) |
4812615b |
306 | (flet ((type-options (type-number) |
3a935dfa |
307 | (let ((name (find-type-name type-number))) |
b011356b |
308 | (cdr (assoc name args :test #'string=))))) |
3a935dfa |
309 | |
4812615b |
310 | (let ((type-list |
311 | (delete-if |
312 | #'(lambda (type-number) |
313 | (let ((name (find-type-name type-number))) |
314 | (or |
315 | (getf (type-options type-number) :ignore) |
316 | (find-if |
317 | #'(lambda (options) |
318 | (and |
319 | (string-prefix-p (first options) name) |
320 | (getf (cdr options) :ignore-prefix))) |
321 | args)))) |
322 | (find-types prefix)))) |
3a935dfa |
323 | |
4812615b |
324 | (dolist (type-number type-list) |
325 | (let ((name (find-type-name type-number))) |
326 | (register-type |
327 | (getf (type-options type-number) :type (default-type-name name)) |
328 | type-number))) |
329 | |
330 | `(progn |
331 | ,@(mapcar |
332 | #'(lambda (type) |
333 | (expand-type-definition type (type-options type))) |
334 | (%sort-types-topologicaly type-list)))))) |
335 | |
3a935dfa |
336 | (defmacro define-types-by-introspection (prefix &rest args) |
b011356b |
337 | (expand-type-definitions prefix args)) |
4812615b |
338 | |
339 | |
340 | |