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1 | ;; Common Lisp bindings for GTK+ 2.x |
2 | ;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net> |
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3 | ;; |
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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: |
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11 | ;; |
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12 | ;; The above copyright notice and this permission notice shall be |
13 | ;; included in all copies or substantial portions of the Software. |
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14 | ;; |
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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. |
22 | |
c2dec722 |
23 | ;; $Id: glib.lisp,v 1.39 2006/12/21 16:38:19 espen Exp $ |
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24 | |
25 | |
26 | (in-package "GLIB") |
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27 | |
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28 | (use-prefix "g") |
29 | |
30 | |
31 | ;;;; Memory management |
32 | |
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33 | (defbinding (%allocate-memory "g_malloc0") () pointer |
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34 | (size unsigned-long)) |
35 | |
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36 | (defbinding (%deallocate-memory "g_free") () nil |
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37 | (address pointer)) |
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38 | |
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39 | ;; (setf |
40 | ;; (symbol-function 'allocate-memory) #'%allocate-memory |
41 | ;; (symbol-function 'deallocate-memory) #'%deallocate-memory) |
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42 | |
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43 | (setf *memory-allocator* #'%allocate-memory) |
44 | (setf *memory-deallocator* #'%deallocate-memory) |
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45 | |
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46 | ;;;; User data mechanism |
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47 | |
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48 | (defvar *user-data* (make-hash-table)) |
49 | (defvar *user-data-count* 0) |
50 | |
51 | (defun register-user-data (object &optional destroy-function) |
52 | (check-type destroy-function (or null symbol function)) |
53 | (incf *user-data-count*) |
54 | (setf |
55 | (gethash *user-data-count* *user-data*) |
56 | (cons object destroy-function)) |
57 | *user-data-count*) |
58 | |
59 | (defun find-user-data (id) |
60 | (check-type id fixnum) |
61 | (multiple-value-bind (user-data p) (gethash id *user-data*) |
62 | (values (car user-data) p))) |
63 | |
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64 | (defun user-data-exists-p (id) |
65 | (nth-value 1 (find-user-data id))) |
66 | |
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67 | (defun update-user-data (id object) |
68 | (check-type id fixnum) |
69 | (multiple-value-bind (user-data exists-p) (gethash id *user-data*) |
70 | (cond |
71 | ((not exists-p) (error "User data id ~A does not exist" id)) |
72 | (t |
73 | (when (cdr user-data) |
74 | (funcall (cdr user-data) (car user-data))) |
75 | (setf (car user-data) object))))) |
76 | |
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77 | (defun destroy-user-data (id) |
78 | (check-type id fixnum) |
79 | (let ((user-data (gethash id *user-data*))) |
80 | (when (cdr user-data) |
81 | (funcall (cdr user-data) (car user-data)))) |
82 | (remhash id *user-data*)) |
83 | |
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84 | |
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85 | ;;;; Quarks |
86 | |
87 | (deftype quark () 'unsigned) |
88 | |
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89 | (defbinding %quark-from-string () quark |
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90 | (string string)) |
91 | |
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92 | (defun quark-intern (object) |
93 | (etypecase object |
94 | (quark object) |
95 | (string (%quark-from-string object)) |
96 | (symbol (%quark-from-string (format nil "clg-~A:~A" |
97 | (package-name (symbol-package object)) |
98 | object))))) |
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99 | |
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100 | (defbinding quark-to-string () (static string) |
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101 | (quark quark)) |
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102 | |
103 | |
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104 | ;;;; Linked list (GList) |
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105 | |
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106 | (deftype glist (type) |
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107 | `(or null (cons ,type list))) |
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108 | |
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109 | (defbinding (%glist-append "g_list_append") () pointer |
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110 | (glist (or null pointer)) |
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111 | (nil null)) |
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112 | |
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113 | (defun make-glist (element-type list &optional temp-p) |
114 | (let ((writer (if (functionp element-type) |
115 | element-type |
116 | (writer-function element-type :temp temp-p)))) |
117 | (loop |
118 | for element in list |
119 | as glist = (%glist-append nil) then (%glist-append glist) |
120 | do (funcall writer element glist) |
121 | finally (return glist)))) |
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122 | |
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123 | (defun glist-next (glist) |
124 | (unless (null-pointer-p glist) |
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125 | (ref-pointer glist #.(size-of 'pointer)))) |
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126 | |
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127 | ;; Also used for gslists |
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128 | (defun map-glist (seqtype function glist element-type &optional (ref :read)) |
129 | (let ((reader (if (functionp element-type) |
130 | element-type |
131 | (reader-function element-type :ref ref)))) |
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132 | (case seqtype |
133 | ((nil) |
134 | (loop |
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135 | as element = glist then (glist-next element) |
136 | until (null-pointer-p element) |
137 | do (funcall function (funcall reader element)))) |
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138 | (list |
139 | (loop |
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140 | as element = glist then (glist-next element) |
141 | until (null-pointer-p element) |
142 | collect (funcall function (funcall reader element)))) |
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143 | (t |
144 | (coerce |
145 | (loop |
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146 | as element = glist then (glist-next element) |
147 | until (null-pointer-p element) |
148 | collect (funcall function (funcall reader element))) |
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149 | seqtype))))) |
150 | |
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151 | (defbinding (glist-free "g_list_free") () nil |
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152 | (glist pointer)) |
153 | |
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154 | (defun destroy-glist (glist element-type &optional temp-p) |
155 | (let ((destroy (if (functionp element-type) |
156 | element-type |
157 | (destroy-function element-type :temp temp-p)))) |
158 | (loop |
159 | as element = glist then (glist-next element) |
160 | until (null-pointer-p element) |
161 | do (funcall destroy element))) |
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162 | (glist-free glist)) |
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163 | |
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164 | (define-type-method alien-type ((type glist)) |
165 | (declare (ignore type)) |
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166 | (alien-type 'pointer)) |
167 | |
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168 | (define-type-method size-of ((type glist) &key inlined) |
169 | (assert-not-inlined type inlined) |
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170 | (size-of 'pointer)) |
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171 | |
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172 | (define-type-method type-alignment ((type glist) &key inlined) |
173 | (assert-not-inlined type inlined) |
174 | (type-alignment 'pointer)) |
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175 | |
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176 | (define-type-method alien-arg-wrapper ((type glist) var list style form &optional copy-in-p) |
177 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
178 | (cond |
179 | ((and (in-arg-p style) (not (out-arg-p style))) |
180 | `(with-pointer (,var (make-glist ',element-type ,list ,(not copy-in-p))) |
181 | (unwind-protect |
182 | ,form |
183 | ,(unless copy-in-p |
184 | `(destroy-glist ,var ',element-type t))))) |
185 | ((and (in-arg-p style) (out-arg-p style)) |
186 | (let ((glist (make-symbol "GLIST"))) |
187 | `(with-pointer (,glist (make-glist ',element-type ,list ,(not copy-in-p))) |
188 | (with-pointer (,var ,glist) |
189 | (unwind-protect |
190 | ,form |
191 | ,(unless copy-in-p |
192 | `(destroy-glist ,glist ',element-type t))))))) |
193 | ((and (out-arg-p style) (not (in-arg-p style))) |
194 | `(with-pointer (,var) |
195 | ,form))))) |
196 | |
197 | (define-type-method to-alien-form ((type glist) list &optional copy-p) |
198 | (declare (ignore copy-p)) |
199 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
200 | `(make-glist ',element-type ,list))) |
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201 | |
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202 | (define-type-method to-alien-function ((type glist) &optional copy-p) |
203 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
204 | (values |
205 | #'(lambda (list) |
206 | (make-glist element-type list (not copy-p))) |
207 | (unless copy-p |
208 | #'(lambda (list glist) |
209 | (declare (ignore list)) |
210 | (destroy-glist glist element-type t)))))) |
211 | |
212 | (define-type-method from-alien-form ((type glist) form &key (ref :free)) |
213 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
214 | `(let ((glist ,form)) |
215 | (unwind-protect |
216 | (map-glist 'list #'identity glist ',element-type |
217 | ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read))) |
218 | ,(when (eq ref :free) |
219 | `(destroy-glist glist ',element-type)))))) |
220 | |
221 | (define-type-method from-alien-function ((type glist) &key (ref :free)) |
222 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
223 | (ecase ref |
224 | (:free |
225 | #'(lambda (glist) |
226 | (prog1 |
227 | (map-glist 'list #'identity glist element-type :get) |
228 | (glist-free glist)))) |
229 | (:copy |
230 | #'(lambda (glist) |
231 | (map-glist 'list #'identity glist element-type :read))) |
232 | ((:static :temp) |
233 | #'(lambda (glist) |
234 | (map-glist 'list #'identity glist element-type :peek)))))) |
235 | |
236 | (define-type-method writer-function ((type glist) &key temp inlined) |
237 | (assert-not-inlined type inlined) |
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238 | (let ((element-type (second (type-expand-to 'glist type)))) |
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239 | #'(lambda (list location &optional (offset 0)) |
240 | (setf |
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241 | (ref-pointer location offset) |
242 | (make-glist element-type list temp))))) |
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243 | |
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244 | (define-type-method reader-function ((type glist) &key (ref :read) inlined) |
245 | (assert-not-inlined type inlined) |
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246 | (let ((element-type (second (type-expand-to 'glist type)))) |
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247 | (ecase ref |
248 | ((:read :peek) |
249 | #'(lambda (location &optional (offset 0)) |
250 | (unless (null-pointer-p (ref-pointer location offset)) |
251 | (map-glist 'list #'identity (ref-pointer location offset) element-type ref)))) |
252 | (:get |
253 | #'(lambda (location &optional (offset 0)) |
254 | (unless (null-pointer-p (ref-pointer location offset)) |
255 | (prog1 |
256 | (map-glist 'list #'identity (ref-pointer location offset) element-type :get) |
257 | (glist-free (ref-pointer location offset)) |
258 | (setf (ref-pointer location offset) (make-pointer 0))))))))) |
259 | |
260 | (define-type-method destroy-function ((type glist) &key temp inlined) |
261 | (assert-not-inlined type inlined) |
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262 | (let ((element-type (second (type-expand-to 'glist type)))) |
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263 | #'(lambda (location &optional (offset 0)) |
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264 | (unless (null-pointer-p (ref-pointer location offset)) |
265 | (destroy-glist (ref-pointer location offset) element-type temp) |
266 | (setf (ref-pointer location offset) (make-pointer 0)))))) |
267 | |
268 | (define-type-method copy-function ((type glist) &key inlined) |
269 | (assert-not-inlined type inlined) |
270 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
271 | (let ((copy-element (copy-function element-type))) |
272 | #'(lambda (from to &optional (offset 0)) |
273 | (unless (null-pointer-p (ref-pointer from offset)) |
274 | (loop |
275 | as from-list = (ref-pointer from offset) |
276 | then (glist-next from-list) |
277 | as to-list = (setf (ref-pointer to offset) (%glist-append nil)) |
278 | then (%glist-append to-list) |
279 | do (funcall copy-element from-list to-list) |
280 | while (glist-next from-lisT))))))) |
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281 | |
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282 | |
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283 | ;;;; Single linked list (GSList) |
284 | |
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285 | (deftype gslist (type) `(or null (cons ,type list))) |
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286 | |
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287 | (defbinding (%gslist-prepend "g_slist_prepend") () pointer |
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288 | (gslist pointer) |
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289 | (nil null)) |
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290 | |
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291 | (defbinding (%gslist-append "g_slist_append") () pointer |
292 | (glist (or null pointer)) |
293 | (nil null)) |
294 | |
295 | |
296 | (defun make-gslist (element-type list &optional temp-p) |
297 | (let ((writer (if (functionp element-type) |
298 | element-type |
299 | (writer-function element-type :temp temp-p)))) |
300 | (loop |
301 | for element in (reverse list) |
302 | as gslist = (%gslist-prepend (make-pointer 0)) then (%gslist-prepend gslist) |
303 | do (funcall writer element gslist) |
304 | finally (return gslist)))) |
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305 | |
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306 | (defbinding (gslist-free "g_slist_free") () nil |
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307 | (gslist pointer)) |
308 | |
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309 | (defun destroy-gslist (gslist element-type &optional temp-p) |
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310 | (loop |
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311 | with destroy = (destroy-function element-type :temp temp-p) |
312 | as element = gslist then (glist-next element) |
313 | until (null-pointer-p element) |
314 | do (funcall destroy element 0)) |
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315 | (gslist-free gslist)) |
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316 | |
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317 | (define-type-method alien-type ((type gslist)) |
318 | (declare (ignore type)) |
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319 | (alien-type 'pointer)) |
320 | |
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321 | (define-type-method size-of ((type gslist) &key inlined) |
322 | (assert-not-inlined type inlined) |
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323 | (size-of 'pointer)) |
324 | |
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325 | (define-type-method type-alignment ((type gslist) &key inlined) |
326 | (assert-not-inlined type inlined) |
327 | (type-alignment 'pointer)) |
328 | |
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329 | (define-type-method alien-arg-wrapper ((type gslist) var list style form &optional copy-in-p) |
330 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
331 | (cond |
332 | ((and (in-arg-p style) (not (out-arg-p style))) |
333 | `(with-pointer (,var (make-gslist ',element-type ,list ,(not copy-in-p))) |
334 | (unwind-protect |
335 | ,form |
336 | ,(unless copy-in-p |
337 | `(destroy-gslist ,var ',element-type t))))) |
338 | ((and (in-arg-p style) (out-arg-p style)) |
339 | (let ((gslist (make-symbol "GSLIST"))) |
340 | `(with-pointer (,gslist (make-gslist ',element-type ,list ,(not copy-in-p))) |
341 | (with-pointer (,var ,gslist) |
342 | (unwind-protect |
343 | ,form |
344 | ,(unless copy-in-p |
345 | `(destroy-gslist ,gslist ',element-type t))))))) |
346 | ((and (out-arg-p style) (not (in-arg-p style))) |
347 | `(with-pointer (,var) |
348 | ,form))))) |
349 | |
350 | (define-type-method to-alien-form ((type gslist) list &optional copy-p) |
351 | (declare (ignore copy-p)) |
352 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
353 | `(make-gslist ',element-type ,list))) |
354 | |
355 | (define-type-method to-alien-function ((type gslist) &optional copy-p) |
356 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
357 | (values |
358 | #'(lambda (list) |
359 | (make-gslist element-type list (not copy-p))) |
360 | (unless copy-p |
361 | #'(lambda (list gslist) |
362 | (declare (ignore list)) |
363 | (destroy-gslist gslist element-type t)))))) |
364 | |
365 | (define-type-method from-alien-form ((type gslist) form &key (ref :free)) |
366 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
367 | `(let ((gslist ,form)) |
368 | (unwind-protect |
369 | (map-glist 'list #'identity gslist ',element-type |
370 | ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read))) |
371 | ,(when (eq ref :free) |
372 | `(destroy-gslist gslist ',element-type)))))) |
373 | |
374 | (define-type-method from-alien-function ((type gslist) &key (ref :free)) |
375 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
376 | (ecase ref |
377 | (:free |
378 | #'(lambda (glist) |
379 | (prog1 |
380 | (map-glist 'list #'identity glist element-type :get) |
381 | (gslist-free glist)))) |
382 | (:copy |
383 | #'(lambda (glist) |
384 | (map-glist 'list #'identity glist element-type :read))) |
385 | ((:static :temp) |
386 | #'(lambda (glist) |
387 | (map-glist 'list #'identity glist element-type :peek)))))) |
388 | |
389 | (define-type-method writer-function ((type gslist) &key temp inlined) |
390 | (assert-not-inlined type inlined) |
391 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
392 | (let ((element-writer (writer-function element-type :temp temp))) |
393 | #'(lambda (list location &optional (offset 0)) |
394 | (setf |
395 | (ref-pointer location offset) |
396 | (make-gslist element-writer list)))))) |
397 | |
398 | (define-type-method reader-function ((type gslist) &key (ref :read) inlined) |
399 | (assert-not-inlined type inlined) |
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400 | (let ((element-type (second (type-expand-to 'gslist type)))) |
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401 | (ecase ref |
402 | ((:read :peek) |
403 | #'(lambda (location &optional (offset 0)) |
404 | (unless (null-pointer-p (ref-pointer location offset)) |
405 | (map-glist 'list #'identity (ref-pointer location offset) element-type ref)))) |
406 | (:get |
407 | #'(lambda (location &optional (offset 0)) |
408 | (unless (null-pointer-p (ref-pointer location offset)) |
409 | (prog1 |
410 | (map-glist 'list #'identity (ref-pointer location offset) element-type :get) |
411 | (gslist-free (ref-pointer location offset)) |
412 | (setf (ref-pointer location offset) (make-pointer 0))))))))) |
413 | |
414 | (define-type-method destroy-function ((type gslist) &key temp inlined) |
415 | (assert-not-inlined type inlined) |
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416 | (let ((element-type (second (type-expand-to 'gslist type)))) |
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417 | #'(lambda (location &optional (offset 0)) |
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418 | (unless (null-pointer-p (ref-pointer location offset)) |
419 | (destroy-gslist (ref-pointer location offset) element-type temp) |
420 | (setf (ref-pointer location offset) (make-pointer 0)))))) |
421 | |
422 | (define-type-method copy-function ((type gslist) &key inlined) |
423 | (assert-not-inlined type inlined) |
424 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
425 | (let ((copy-element (copy-function element-type))) |
426 | #'(lambda (from to &optional (offset 0)) |
427 | (unless (null-pointer-p (ref-pointer from offset)) |
428 | (loop |
429 | as from-list = (ref-pointer from offset) |
430 | then (glist-next from-list) |
431 | as to-list = (setf (ref-pointer to offset) (%gslist-append nil)) |
432 | then (%gslist-append to-list) |
433 | do (funcall copy-element from-list to-list) |
434 | while (glist-next from-list))))))) |