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1 | ;; Common Lisp bindings for GTK+ v1.2.x |
2 | ;; Copyright (C) 1999 Espen S. Johnsen <espejohn@online.no> |
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 | |
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18 | ;; $Id: glib.lisp,v 1.24 2005-01-30 14:26:41 espen Exp $ |
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19 | |
20 | |
21 | (in-package "GLIB") |
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22 | |
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23 | (use-prefix "g") |
24 | |
25 | |
26 | ;;;; Memory management |
27 | |
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28 | (defbinding (allocate-memory "g_malloc0") () pointer |
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29 | (size unsigned-long)) |
30 | |
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31 | (defbinding (reallocate-memory "g_realloc") () pointer |
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32 | (address pointer) |
33 | (size unsigned-long)) |
34 | |
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35 | (defbinding (deallocate-memory "g_free") () nil |
36 | (address pointer)) |
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37 | ;; (defun deallocate-memory (address) |
38 | ;; (declare (ignore address))) |
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39 | |
40 | (defun copy-memory (from length &optional (to (allocate-memory length))) |
41 | (kernel:system-area-copy from 0 to 0 (* 8 length)) |
42 | to) |
43 | |
44 | |
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45 | ;;;; User data mechanism |
46 | |
47 | (internal *user-data* *user-data-count*) |
48 | |
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49 | (defvar *user-data* (make-hash-table)) |
50 | (defvar *user-data-count* 0) |
51 | |
52 | (defun register-user-data (object &optional destroy-function) |
53 | (check-type destroy-function (or null symbol function)) |
54 | (incf *user-data-count*) |
55 | (setf |
56 | (gethash *user-data-count* *user-data*) |
57 | (cons object destroy-function)) |
58 | *user-data-count*) |
59 | |
60 | (defun find-user-data (id) |
61 | (check-type id fixnum) |
62 | (multiple-value-bind (user-data p) (gethash id *user-data*) |
63 | (values (car user-data) p))) |
64 | |
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65 | (defun user-data-exists-p (id) |
66 | (nth-value 1 (find-user-data id))) |
67 | |
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68 | (defun update-user-data (id object) |
69 | (check-type id fixnum) |
70 | (multiple-value-bind (user-data exists-p) (gethash id *user-data*) |
71 | (cond |
72 | ((not exists-p) (error "User data id ~A does not exist" id)) |
73 | (t |
74 | (when (cdr user-data) |
75 | (funcall (cdr user-data) (car user-data))) |
76 | (setf (car user-data) object))))) |
77 | |
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78 | (defun destroy-user-data (id) |
79 | (check-type id fixnum) |
80 | (let ((user-data (gethash id *user-data*))) |
81 | (when (cdr user-data) |
82 | (funcall (cdr user-data) (car user-data)))) |
83 | (remhash id *user-data*)) |
84 | |
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85 | |
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86 | ;;;; Quarks |
87 | |
88 | (deftype quark () 'unsigned) |
89 | |
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90 | (defbinding %quark-from-string () quark |
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91 | (string string)) |
92 | |
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93 | (defun quark-intern (object) |
94 | (etypecase object |
95 | (quark object) |
96 | (string (%quark-from-string object)) |
97 | (symbol (%quark-from-string (format nil "clg-~A:~A" |
98 | (package-name (symbol-package object)) |
99 | object))))) |
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100 | |
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101 | (defbinding quark-to-string () (copy-of string) |
102 | (quark quark)) |
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103 | |
104 | |
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105 | ;;;; Linked list (GList) |
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106 | |
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107 | (deftype glist (type) |
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108 | `(or (null (cons ,type list)))) |
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109 | |
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110 | (defbinding (%glist-append "g_list_append") () pointer |
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111 | (glist pointer) |
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112 | (nil null)) |
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113 | |
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114 | (defun make-glist (type list) |
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115 | (loop |
116 | with writer = (writer-function type) |
117 | for element in list |
118 | as glist = (%glist-append (or glist (make-pointer 0))) |
119 | do (funcall writer element glist) |
120 | finally (return glist))) |
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121 | |
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122 | (defun glist-next (glist) |
123 | (unless (null-pointer-p glist) |
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124 | (sap-ref-sap glist +size-of-pointer+))) |
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125 | |
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126 | ;; Also used for gslists |
127 | (defun map-glist (seqtype function glist element-type) |
128 | (let ((reader (reader-function element-type))) |
129 | (case seqtype |
130 | ((nil) |
131 | (loop |
132 | as tmp = glist then (glist-next tmp) |
133 | until (null-pointer-p tmp) |
134 | do (funcall function (funcall reader tmp)))) |
135 | (list |
136 | (loop |
137 | as tmp = glist then (glist-next tmp) |
138 | until (null-pointer-p tmp) |
139 | collect (funcall function (funcall reader tmp)))) |
140 | (t |
141 | (coerce |
142 | (loop |
143 | as tmp = glist then (glist-next tmp) |
144 | until (null-pointer-p tmp) |
145 | collect (funcall function (funcall reader tmp))) |
146 | seqtype))))) |
147 | |
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148 | (defbinding (glist-free "g_list_free") () nil |
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149 | (glist pointer)) |
150 | |
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151 | (defun destroy-glist (glist element-type) |
152 | (loop |
153 | with destroy = (destroy-function element-type) |
154 | as tmp = glist then (glist-next tmp) |
155 | until (null-pointer-p tmp) |
156 | do (funcall destroy tmp 0)) |
157 | (glist-free glist)) |
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158 | |
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159 | (defmethod alien-type ((type (eql 'glist)) &rest args) |
160 | (declare (ignore type args)) |
161 | (alien-type 'pointer)) |
162 | |
163 | (defmethod size-of ((type (eql 'glist)) &rest args) |
164 | (declare (ignore type args)) |
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165 | (size-of 'pointer)) |
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166 | |
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167 | (defmethod to-alien-form (list (type (eql 'glist)) &rest args) |
168 | (declare (ignore type)) |
169 | (destructuring-bind (element-type) args |
170 | `(make-glist ',element-type ,list))) |
171 | |
172 | (defmethod to-alien-function ((type (eql 'glist)) &rest args) |
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173 | (declare (ignore type)) |
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174 | (destructuring-bind (element-type) args |
175 | #'(lambda (list) |
176 | (make-glist element-type list)))) |
177 | |
178 | (defmethod from-alien-form (glist (type (eql 'glist)) &rest args) |
179 | (declare (ignore type)) |
180 | (destructuring-bind (element-type) args |
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181 | `(let ((glist ,glist)) |
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182 | (unwind-protect |
183 | (map-glist 'list #'identity glist ',element-type) |
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184 | (destroy-glist glist ',element-type))))) |
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185 | |
186 | (defmethod from-alien-function ((type (eql 'glist)) &rest args) |
187 | (declare (ignore type)) |
188 | (destructuring-bind (element-type) args |
189 | #'(lambda (glist) |
190 | (unwind-protect |
191 | (map-glist 'list #'identity glist element-type) |
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192 | (destroy-glist glist element-type))))) |
193 | |
194 | (defmethod copy-from-alien-form (glist (type (eql 'glist)) &rest args) |
195 | (declare (ignore type)) |
196 | (destructuring-bind (element-type) args |
197 | `(map-glist 'list #'identity ,glist ',element-type))) |
198 | |
199 | (defmethod copy-from-alien-function ((type (eql 'glist)) &rest args) |
200 | (declare (ignore type)) |
201 | (destructuring-bind (element-type) args |
202 | #'(lambda (glist) |
203 | (map-glist 'list #'identity glist element-type)))) |
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204 | |
205 | (defmethod cleanup-form (glist (type (eql 'glist)) &rest args) |
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206 | (declare (ignore type)) |
207 | (destructuring-bind (element-type) args |
208 | `(destroy-glist ,glist ',element-type))) |
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209 | |
210 | (defmethod cleanup-function ((type (eql 'glist)) &rest args) |
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211 | (declare (ignore type)) |
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212 | (destructuring-bind (element-type) args |
213 | #'(lambda (glist) |
214 | (destroy-glist glist element-type)))) |
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215 | |
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216 | (defmethod writer-function ((type (eql 'glist)) &rest args) |
217 | (declare (ignore type)) |
218 | (destructuring-bind (element-type) args |
219 | #'(lambda (list location &optional (offset 0)) |
220 | (setf |
221 | (sap-ref-sap location offset) |
222 | (make-glist element-type list))))) |
223 | |
224 | (defmethod reader-function ((type (eql 'glist)) &rest args) |
225 | (declare (ignore type)) |
226 | (destructuring-bind (element-type) args |
227 | #'(lambda (location &optional (offset 0)) |
228 | (unless (null-pointer-p (sap-ref-sap location offset)) |
229 | (map-glist 'list #'identity (sap-ref-sap location offset) element-type))))) |
230 | |
231 | (defmethod destroy-function ((type (eql 'glist)) &rest args) |
232 | (declare (ignore type)) |
233 | (destructuring-bind (element-type) args |
234 | #'(lambda (location &optional (offset 0)) |
235 | (unless (null-pointer-p (sap-ref-sap location offset)) |
236 | (destroy-glist (sap-ref-sap location offset) element-type) |
237 | (setf (sap-ref-sap location offset) (make-pointer 0)))))) |
238 | |
239 | |
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240 | |
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241 | ;;;; Single linked list (GSList) |
242 | |
243 | (deftype gslist (type) `(or (null (cons ,type list)))) |
244 | |
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245 | (defbinding (%gslist-prepend "g_slist_prepend") () pointer |
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246 | (gslist pointer) |
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247 | (nil null)) |
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248 | |
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249 | (defun make-gslist (type list) |
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250 | (loop |
251 | with writer = (writer-function type) |
252 | for element in (reverse list) |
253 | as gslist = (%gslist-prepend (or gslist (make-pointer 0))) |
254 | do (funcall writer element gslist) |
255 | finally (return gslist))) |
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256 | |
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257 | (defbinding (gslist-free "g_slist_free") () nil |
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258 | (gslist pointer)) |
259 | |
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260 | (defun destroy-gslist (gslist element-type) |
261 | (loop |
262 | with destroy = (destroy-function element-type) |
263 | as tmp = gslist then (glist-next tmp) |
264 | until (null-pointer-p tmp) |
265 | do (funcall destroy tmp 0)) |
266 | (gslist-free gslist)) |
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267 | |
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268 | (defmethod alien-type ((type (eql 'gslist)) &rest args) |
269 | (declare (ignore type args)) |
270 | (alien-type 'pointer)) |
271 | |
272 | (defmethod size-of ((type (eql 'gslist)) &rest args) |
273 | (declare (ignore type args)) |
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274 | (size-of 'pointer)) |
275 | |
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276 | (defmethod to-alien-form (list (type (eql 'gslist)) &rest args) |
277 | (declare (ignore type)) |
278 | (destructuring-bind (element-type) args |
279 | `(make-sglist ',element-type ,list))) |
280 | |
281 | (defmethod to-alien-function ((type (eql 'gslist)) &rest args) |
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282 | (declare (ignore type)) |
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283 | (destructuring-bind (element-type) args |
284 | #'(lambda (list) |
285 | (make-gslist element-type list)))) |
286 | |
287 | (defmethod from-alien-form (gslist (type (eql 'gslist)) &rest args) |
288 | (declare (ignore type)) |
289 | (destructuring-bind (element-type) args |
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290 | `(let ((gslist ,gslist)) |
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291 | (unwind-protect |
292 | (map-glist 'list #'identity gslist ',element-type) |
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293 | (destroy-gslist gslist ',element-type))))) |
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294 | |
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295 | (defmethod from-alien-function ((type (eql 'gslist)) &rest args) |
296 | (declare (ignore type)) |
297 | (destructuring-bind (element-type) args |
298 | #'(lambda (gslist) |
299 | (unwind-protect |
300 | (map-glist 'list #'identity gslist element-type) |
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301 | (destroy-gslist gslist element-type))))) |
302 | |
303 | (defmethod copy-from-alien-form (gslist (type (eql 'gslist)) &rest args) |
304 | (declare (ignore type)) |
305 | (destructuring-bind (element-type) args |
306 | `(map-glist 'list #'identity ,gslist ',element-type))) |
307 | |
308 | (defmethod from-alien-function ((type (eql 'gslist)) &rest args) |
309 | (declare (ignore type)) |
310 | (destructuring-bind (element-type) args |
311 | #'(lambda (gslist) |
312 | (map-glist 'list #'identity gslist element-type)))) |
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313 | |
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314 | (defmethod cleanup-form (gslist (type (eql 'gslist)) &rest args) |
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315 | (declare (ignore type)) |
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316 | (destructuring-bind (element-type) args |
317 | `(destroy-gslist ,gslist ',element-type))) |
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318 | |
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319 | (defmethod cleanup-function ((type (eql 'gslist)) &rest args) |
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320 | (declare (ignore type)) |
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321 | (destructuring-bind (element-type) args |
322 | #'(lambda (gslist) |
323 | (destroy-gslist gslist element-type)))) |
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324 | |
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325 | (defmethod writer-function ((type (eql 'gslist)) &rest args) |
326 | (declare (ignore type)) |
327 | (destructuring-bind (element-type) args |
328 | #'(lambda (list location &optional (offset 0)) |
329 | (setf |
330 | (sap-ref-sap location offset) |
331 | (make-gslist element-type list))))) |
332 | |
333 | (defmethod reader-function ((type (eql 'gslist)) &rest args) |
334 | (declare (ignore type)) |
335 | (destructuring-bind (element-type) args |
336 | #'(lambda (location &optional (offset 0)) |
337 | (unless (null-pointer-p (sap-ref-sap location offset)) |
338 | (map-glist 'list #'identity (sap-ref-sap location offset) element-type))))) |
339 | |
340 | (defmethod destroy-function ((type (eql 'gslist)) &rest args) |
341 | (declare (ignore type)) |
342 | (destructuring-bind (element-type) args |
343 | #'(lambda (location &optional (offset 0)) |
344 | (unless (null-pointer-p (sap-ref-sap location offset)) |
345 | (destroy-gslist (sap-ref-sap location offset) element-type) |
346 | (setf (sap-ref-sap location offset) (make-pointer 0)))))) |
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347 | |
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348 | |
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349 | ;;; Vector |
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350 | |
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351 | (defun make-c-vector (type length &optional content location) |
352 | (let* ((size-of-type (size-of type)) |
353 | (location (or location (allocate-memory (* size-of-type length)))) |
354 | (writer (writer-function type))) |
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355 | (etypecase content |
356 | (vector |
357 | (loop |
358 | for element across content |
359 | for i from 0 below length |
360 | as offset = 0 then (+ offset size-of-type) |
361 | do (funcall writer element location offset))) |
362 | (list |
363 | (loop |
364 | for element in content |
365 | for i from 0 below length |
366 | as offset = 0 then (+ offset size-of-type) |
367 | do (funcall writer element location offset)))) |
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368 | location)) |
369 | |
370 | |
371 | (defun map-c-vector (seqtype function location element-type length) |
372 | (let ((reader (reader-function element-type)) |
373 | (size-of-element (size-of element-type))) |
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374 | (case seqtype |
375 | ((nil) |
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376 | (loop |
377 | for i from 0 below length |
378 | as offset = 0 then (+ offset size-of-element) |
379 | do (funcall function (funcall reader location offset)))) |
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380 | (list |
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381 | (loop |
382 | for i from 0 below length |
383 | as offset = 0 then (+ offset size-of-element) |
384 | collect (funcall function (funcall reader location offset)))) |
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385 | (t |
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386 | (loop |
387 | with sequence = (make-sequence seqtype length) |
388 | for i from 0 below length |
389 | as offset = 0 then (+ offset size-of-element) |
390 | do (setf |
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391 | (elt sequence i) |
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392 | (funcall function (funcall reader location offset))) |
393 | finally (return sequence)))))) |
394 | |
395 | |
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396 | (defun destroy-c-vector (location element-type length) |
397 | (loop |
398 | with destroy = (destroy-function element-type) |
399 | with element-size = (size-of element-type) |
400 | for i from 0 below length |
401 | as offset = 0 then (+ offset element-size) |
402 | do (funcall destroy location offset)) |
403 | (deallocate-memory location)) |
404 | |
405 | |
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406 | (defmethod alien-type ((type (eql 'vector)) &rest args) |
407 | (declare (ignore type args)) |
408 | (alien-type 'pointer)) |
409 | |
410 | (defmethod size-of ((type (eql 'vector)) &rest args) |
411 | (declare (ignore type args)) |
412 | (size-of 'pointer)) |
413 | |
414 | (defmethod to-alien-form (vector (type (eql 'vector)) &rest args) |
415 | (declare (ignore type)) |
416 | (destructuring-bind (element-type &optional (length '*)) args |
417 | (if (eq length '*) |
418 | `(let* ((vector ,vector) |
419 | (location (sap+ |
420 | (allocate-memory (+ ,+size-of-int+ |
421 | (* ,(size-of element-type) |
422 | (length vector)))) |
423 | ,+size-of-int+))) |
424 | (make-c-vector ',element-type (length vector) vector location) |
425 | (setf (sap-ref-32 location ,(- +size-of-int+)) (length vector)) |
426 | location) |
427 | `(make-c-vector ',element-type ,length ,vector)))) |
428 | |
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429 | (defmethod from-alien-form (c-vector (type (eql 'vector)) &rest args) |
430 | (declare (ignore type)) |
431 | (destructuring-bind (element-type &optional (length '*)) args |
432 | (if (eq length '*) |
433 | (error "Can't use vector of variable size as return type") |
434 | `(let ((c-vector ,c-vector)) |
435 | (prog1 |
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436 | (map-c-vector 'vector #'identity c-vector ',element-type ,length) |
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437 | (destroy-c-vector c-vector ',element-type ,length)))))) |
438 | |
439 | (defmethod copy-from-alien-form (c-vector (type (eql 'vector)) &rest args) |
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440 | (declare (ignore type)) |
441 | (destructuring-bind (element-type &optional (length '*)) args |
442 | (if (eq length '*) |
443 | (error "Can't use vector of variable size as return type") |
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444 | `(map-c-vector 'vector #'identity ,c-vector ',element-type ',length)))) |
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445 | |
446 | (defmethod cleanup-form (location (type (eql 'vector)) &rest args) |
447 | (declare (ignore type)) |
448 | (destructuring-bind (element-type &optional (length '*)) args |
449 | `(let* ((location ,location) |
450 | (length ,(if (eq length '*) |
451 | `(sap-ref-32 location ,(- +size-of-int+)) |
452 | length))) |
453 | (loop |
454 | with destroy = (destroy-function ',element-type) |
455 | for i from 0 below length |
456 | as offset = 0 then (+ offset ,(size-of element-type)) |
457 | do (funcall destroy location offset)) |
458 | (deallocate-memory ,(if (eq length '*) |
459 | `(sap+ location ,(- +size-of-int+)) |
460 | 'location))))) |
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461 | |
462 | (defmethod writer-function ((type (eql 'vector)) &rest args) |
463 | (declare (ignore type)) |
464 | (destructuring-bind (element-type &optional (length '*)) args |
465 | #'(lambda (vector location &optional (offset 0)) |
466 | (setf |
467 | (sap-ref-sap location offset) |
468 | (make-c-vector element-type length vector))))) |
469 | |
470 | (defmethod reader-function ((type (eql 'vector)) &rest args) |
471 | (declare (ignore type)) |
472 | (destructuring-bind (element-type &optional (length '*)) args |
473 | (if (eq length '*) |
474 | (error "Can't create reader function for vector of variable size") |
475 | #'(lambda (location &optional (offset 0)) |
476 | (unless (null-pointer-p (sap-ref-sap location offset)) |
477 | (map-c-vector 'vector #'identity (sap-ref-sap location offset) |
478 | element-type length)))))) |
479 | |
480 | (defmethod destroy-function ((type (eql 'vector)) &rest args) |
481 | (declare (ignore type)) |
482 | (destructuring-bind (element-type &optional (length '*)) args |
483 | (if (eq length '*) |
484 | (error "Can't create destroy function for vector of variable size") |
485 | #'(lambda (location &optional (offset 0)) |
486 | (unless (null-pointer-p (sap-ref-sap location offset)) |
487 | (destroy-c-vector |
488 | (sap-ref-sap location offset) element-type length) |
489 | (setf (sap-ref-sap location offset) (make-pointer 0))))))) |