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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 | |
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23 | ;; $Id: glib.lisp,v 1.37 2006-04-25 21:51:32 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 | |
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44 | ;;;; User data mechanism |
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45 | |
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46 | (defvar *user-data* (make-hash-table)) |
47 | (defvar *user-data-count* 0) |
48 | |
49 | (defun register-user-data (object &optional destroy-function) |
50 | (check-type destroy-function (or null symbol function)) |
51 | (incf *user-data-count*) |
52 | (setf |
53 | (gethash *user-data-count* *user-data*) |
54 | (cons object destroy-function)) |
55 | *user-data-count*) |
56 | |
57 | (defun find-user-data (id) |
58 | (check-type id fixnum) |
59 | (multiple-value-bind (user-data p) (gethash id *user-data*) |
60 | (values (car user-data) p))) |
61 | |
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62 | (defun user-data-exists-p (id) |
63 | (nth-value 1 (find-user-data id))) |
64 | |
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65 | (defun update-user-data (id object) |
66 | (check-type id fixnum) |
67 | (multiple-value-bind (user-data exists-p) (gethash id *user-data*) |
68 | (cond |
69 | ((not exists-p) (error "User data id ~A does not exist" id)) |
70 | (t |
71 | (when (cdr user-data) |
72 | (funcall (cdr user-data) (car user-data))) |
73 | (setf (car user-data) object))))) |
74 | |
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75 | (defun destroy-user-data (id) |
76 | (check-type id fixnum) |
77 | (let ((user-data (gethash id *user-data*))) |
78 | (when (cdr user-data) |
79 | (funcall (cdr user-data) (car user-data)))) |
80 | (remhash id *user-data*)) |
81 | |
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82 | |
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83 | ;;;; Quarks |
84 | |
85 | (deftype quark () 'unsigned) |
86 | |
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87 | (defbinding %quark-from-string () quark |
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88 | (string string)) |
89 | |
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90 | (defun quark-intern (object) |
91 | (etypecase object |
92 | (quark object) |
93 | (string (%quark-from-string object)) |
94 | (symbol (%quark-from-string (format nil "clg-~A:~A" |
95 | (package-name (symbol-package object)) |
96 | object))))) |
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97 | |
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98 | (defbinding quark-to-string () (static string) |
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99 | (quark quark)) |
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100 | |
101 | |
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102 | ;;;; Linked list (GList) |
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103 | |
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104 | (deftype glist (type) |
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105 | `(or null (cons ,type list))) |
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106 | |
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107 | (defbinding (%glist-append "g_list_append") () pointer |
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108 | (glist (or null pointer)) |
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109 | (nil null)) |
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110 | |
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111 | (defun make-glist (element-type list &optional temp-p) |
112 | (let ((writer (if (functionp element-type) |
113 | element-type |
114 | (writer-function element-type :temp temp-p)))) |
115 | (loop |
116 | for element in list |
117 | as glist = (%glist-append nil) then (%glist-append glist) |
118 | do (funcall writer element glist) |
119 | finally (return glist)))) |
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120 | |
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121 | (defun glist-next (glist) |
122 | (unless (null-pointer-p glist) |
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123 | (ref-pointer glist #.(size-of 'pointer)))) |
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124 | |
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125 | ;; Also used for gslists |
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126 | (defun map-glist (seqtype function glist element-type &optional (ref :read)) |
127 | (let ((reader (if (functionp element-type) |
128 | element-type |
129 | (reader-function element-type :ref ref)))) |
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130 | (case seqtype |
131 | ((nil) |
132 | (loop |
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133 | as element = glist then (glist-next element) |
134 | until (null-pointer-p element) |
135 | do (funcall function (funcall reader element)))) |
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136 | (list |
137 | (loop |
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138 | as element = glist then (glist-next element) |
139 | until (null-pointer-p element) |
140 | collect (funcall function (funcall reader element)))) |
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141 | (t |
142 | (coerce |
143 | (loop |
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144 | as element = glist then (glist-next element) |
145 | until (null-pointer-p element) |
146 | collect (funcall function (funcall reader element))) |
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147 | seqtype))))) |
148 | |
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149 | (defbinding (glist-free "g_list_free") () nil |
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150 | (glist pointer)) |
151 | |
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152 | (defun destroy-glist (glist element-type &optional temp-p) |
153 | (let ((destroy (if (functionp element-type) |
154 | element-type |
155 | (destroy-function element-type :temp temp-p)))) |
156 | (loop |
157 | as element = glist then (glist-next element) |
158 | until (null-pointer-p element) |
159 | do (funcall destroy element))) |
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160 | (glist-free glist)) |
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161 | |
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162 | (define-type-method alien-type ((type glist)) |
163 | (declare (ignore type)) |
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164 | (alien-type 'pointer)) |
165 | |
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166 | (define-type-method size-of ((type glist) &key inlined) |
167 | (assert-not-inlined type inlined) |
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168 | (size-of 'pointer)) |
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169 | |
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170 | |
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171 | (define-type-method alien-arg-wrapper ((type glist) var list style form &optional copy-in-p) |
172 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
173 | (cond |
174 | ((and (in-arg-p style) (not (out-arg-p style))) |
175 | `(with-pointer (,var (make-glist ',element-type ,list ,(not copy-in-p))) |
176 | (unwind-protect |
177 | ,form |
178 | ,(unless copy-in-p |
179 | `(destroy-glist ,var ',element-type t))))) |
180 | ((and (in-arg-p style) (out-arg-p style)) |
181 | (let ((glist (make-symbol "GLIST"))) |
182 | `(with-pointer (,glist (make-glist ',element-type ,list ,(not copy-in-p))) |
183 | (with-pointer (,var ,glist) |
184 | (unwind-protect |
185 | ,form |
186 | ,(unless copy-in-p |
187 | `(destroy-glist ,glist ',element-type t))))))) |
188 | ((and (out-arg-p style) (not (in-arg-p style))) |
189 | `(with-pointer (,var) |
190 | ,form))))) |
191 | |
192 | (define-type-method to-alien-form ((type glist) list &optional copy-p) |
193 | (declare (ignore copy-p)) |
194 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
195 | `(make-glist ',element-type ,list))) |
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196 | |
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197 | (define-type-method to-alien-function ((type glist) &optional copy-p) |
198 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
199 | (values |
200 | #'(lambda (list) |
201 | (make-glist element-type list (not copy-p))) |
202 | (unless copy-p |
203 | #'(lambda (list glist) |
204 | (declare (ignore list)) |
205 | (destroy-glist glist element-type t)))))) |
206 | |
207 | (define-type-method from-alien-form ((type glist) form &key (ref :free)) |
208 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
209 | `(let ((glist ,form)) |
210 | (unwind-protect |
211 | (map-glist 'list #'identity glist ',element-type |
212 | ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read))) |
213 | ,(when (eq ref :free) |
214 | `(destroy-glist glist ',element-type)))))) |
215 | |
216 | (define-type-method from-alien-function ((type glist) &key (ref :free)) |
217 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
218 | (ecase ref |
219 | (:free |
220 | #'(lambda (glist) |
221 | (prog1 |
222 | (map-glist 'list #'identity glist element-type :get) |
223 | (glist-free glist)))) |
224 | (:copy |
225 | #'(lambda (glist) |
226 | (map-glist 'list #'identity glist element-type :read))) |
227 | ((:static :temp) |
228 | #'(lambda (glist) |
229 | (map-glist 'list #'identity glist element-type :peek)))))) |
230 | |
231 | (define-type-method writer-function ((type glist) &key temp inlined) |
232 | (assert-not-inlined type inlined) |
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233 | (let ((element-type (second (type-expand-to 'glist type)))) |
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234 | #'(lambda (list location &optional (offset 0)) |
235 | (setf |
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236 | (ref-pointer location offset) |
237 | (make-glist element-type list temp))))) |
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238 | |
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239 | (define-type-method reader-function ((type glist) &key (ref :read) inlined) |
240 | (assert-not-inlined type inlined) |
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241 | (let ((element-type (second (type-expand-to 'glist type)))) |
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242 | (ecase ref |
243 | ((:read :peek) |
244 | #'(lambda (location &optional (offset 0)) |
245 | (unless (null-pointer-p (ref-pointer location offset)) |
246 | (map-glist 'list #'identity (ref-pointer location offset) element-type ref)))) |
247 | (:get |
248 | #'(lambda (location &optional (offset 0)) |
249 | (unless (null-pointer-p (ref-pointer location offset)) |
250 | (prog1 |
251 | (map-glist 'list #'identity (ref-pointer location offset) element-type :get) |
252 | (glist-free (ref-pointer location offset)) |
253 | (setf (ref-pointer location offset) (make-pointer 0))))))))) |
254 | |
255 | (define-type-method destroy-function ((type glist) &key temp inlined) |
256 | (assert-not-inlined type inlined) |
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257 | (let ((element-type (second (type-expand-to 'glist type)))) |
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258 | #'(lambda (location &optional (offset 0)) |
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259 | (unless (null-pointer-p (ref-pointer location offset)) |
260 | (destroy-glist (ref-pointer location offset) element-type temp) |
261 | (setf (ref-pointer location offset) (make-pointer 0)))))) |
262 | |
263 | (define-type-method copy-function ((type glist) &key inlined) |
264 | (assert-not-inlined type inlined) |
265 | (destructuring-bind (element-type) (rest (type-expand-to 'glist type)) |
266 | (let ((copy-element (copy-function element-type))) |
267 | #'(lambda (from to &optional (offset 0)) |
268 | (unless (null-pointer-p (ref-pointer from offset)) |
269 | (loop |
270 | as from-list = (ref-pointer from offset) |
271 | then (glist-next from-list) |
272 | as to-list = (setf (ref-pointer to offset) (%glist-append nil)) |
273 | then (%glist-append to-list) |
274 | do (funcall copy-element from-list to-list) |
275 | while (glist-next from-lisT))))))) |
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276 | |
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277 | |
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278 | ;;;; Single linked list (GSList) |
279 | |
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280 | (deftype gslist (type) `(or null (cons ,type list))) |
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281 | |
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282 | (defbinding (%gslist-prepend "g_slist_prepend") () pointer |
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283 | (gslist pointer) |
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284 | (nil null)) |
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285 | |
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286 | (defbinding (%gslist-append "g_slist_append") () pointer |
287 | (glist (or null pointer)) |
288 | (nil null)) |
289 | |
290 | |
291 | (defun make-gslist (element-type list &optional temp-p) |
292 | (let ((writer (if (functionp element-type) |
293 | element-type |
294 | (writer-function element-type :temp temp-p)))) |
295 | (loop |
296 | for element in (reverse list) |
297 | as gslist = (%gslist-prepend (make-pointer 0)) then (%gslist-prepend gslist) |
298 | do (funcall writer element gslist) |
299 | finally (return gslist)))) |
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300 | |
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301 | (defbinding (gslist-free "g_slist_free") () nil |
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302 | (gslist pointer)) |
303 | |
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304 | (defun destroy-gslist (gslist element-type &optional temp-p) |
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305 | (loop |
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306 | with destroy = (destroy-function element-type :temp temp-p) |
307 | as element = gslist then (glist-next element) |
308 | until (null-pointer-p element) |
309 | do (funcall destroy element 0)) |
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310 | (gslist-free gslist)) |
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311 | |
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312 | (define-type-method alien-type ((type gslist)) |
313 | (declare (ignore type)) |
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314 | (alien-type 'pointer)) |
315 | |
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316 | (define-type-method size-of ((type gslist) &key inlined) |
317 | (assert-not-inlined type inlined) |
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318 | (size-of 'pointer)) |
319 | |
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320 | (define-type-method alien-arg-wrapper ((type gslist) var list style form &optional copy-in-p) |
321 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
322 | (cond |
323 | ((and (in-arg-p style) (not (out-arg-p style))) |
324 | `(with-pointer (,var (make-gslist ',element-type ,list ,(not copy-in-p))) |
325 | (unwind-protect |
326 | ,form |
327 | ,(unless copy-in-p |
328 | `(destroy-gslist ,var ',element-type t))))) |
329 | ((and (in-arg-p style) (out-arg-p style)) |
330 | (let ((gslist (make-symbol "GSLIST"))) |
331 | `(with-pointer (,gslist (make-gslist ',element-type ,list ,(not copy-in-p))) |
332 | (with-pointer (,var ,gslist) |
333 | (unwind-protect |
334 | ,form |
335 | ,(unless copy-in-p |
336 | `(destroy-gslist ,gslist ',element-type t))))))) |
337 | ((and (out-arg-p style) (not (in-arg-p style))) |
338 | `(with-pointer (,var) |
339 | ,form))))) |
340 | |
341 | (define-type-method to-alien-form ((type gslist) list &optional copy-p) |
342 | (declare (ignore copy-p)) |
343 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
344 | `(make-gslist ',element-type ,list))) |
345 | |
346 | (define-type-method to-alien-function ((type gslist) &optional copy-p) |
347 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
348 | (values |
349 | #'(lambda (list) |
350 | (make-gslist element-type list (not copy-p))) |
351 | (unless copy-p |
352 | #'(lambda (list gslist) |
353 | (declare (ignore list)) |
354 | (destroy-gslist gslist element-type t)))))) |
355 | |
356 | (define-type-method from-alien-form ((type gslist) form &key (ref :free)) |
357 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
358 | `(let ((gslist ,form)) |
359 | (unwind-protect |
360 | (map-glist 'list #'identity gslist ',element-type |
361 | ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read))) |
362 | ,(when (eq ref :free) |
363 | `(destroy-gslist gslist ',element-type)))))) |
364 | |
365 | (define-type-method from-alien-function ((type gslist) &key (ref :free)) |
366 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
367 | (ecase ref |
368 | (:free |
369 | #'(lambda (glist) |
370 | (prog1 |
371 | (map-glist 'list #'identity glist element-type :get) |
372 | (gslist-free glist)))) |
373 | (:copy |
374 | #'(lambda (glist) |
375 | (map-glist 'list #'identity glist element-type :read))) |
376 | ((:static :temp) |
377 | #'(lambda (glist) |
378 | (map-glist 'list #'identity glist element-type :peek)))))) |
379 | |
380 | (define-type-method writer-function ((type gslist) &key temp inlined) |
381 | (assert-not-inlined type inlined) |
382 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
383 | (let ((element-writer (writer-function element-type :temp temp))) |
384 | #'(lambda (list location &optional (offset 0)) |
385 | (setf |
386 | (ref-pointer location offset) |
387 | (make-gslist element-writer list)))))) |
388 | |
389 | (define-type-method reader-function ((type gslist) &key (ref :read) inlined) |
390 | (assert-not-inlined type inlined) |
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391 | (let ((element-type (second (type-expand-to 'gslist type)))) |
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392 | (ecase ref |
393 | ((:read :peek) |
394 | #'(lambda (location &optional (offset 0)) |
395 | (unless (null-pointer-p (ref-pointer location offset)) |
396 | (map-glist 'list #'identity (ref-pointer location offset) element-type ref)))) |
397 | (:get |
398 | #'(lambda (location &optional (offset 0)) |
399 | (unless (null-pointer-p (ref-pointer location offset)) |
400 | (prog1 |
401 | (map-glist 'list #'identity (ref-pointer location offset) element-type :get) |
402 | (gslist-free (ref-pointer location offset)) |
403 | (setf (ref-pointer location offset) (make-pointer 0))))))))) |
404 | |
405 | (define-type-method destroy-function ((type gslist) &key temp inlined) |
406 | (assert-not-inlined type inlined) |
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407 | (let ((element-type (second (type-expand-to 'gslist type)))) |
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408 | #'(lambda (location &optional (offset 0)) |
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409 | (unless (null-pointer-p (ref-pointer location offset)) |
410 | (destroy-gslist (ref-pointer location offset) element-type temp) |
411 | (setf (ref-pointer location offset) (make-pointer 0)))))) |
412 | |
413 | (define-type-method copy-function ((type gslist) &key inlined) |
414 | (assert-not-inlined type inlined) |
415 | (destructuring-bind (element-type) (rest (type-expand-to 'gslist type)) |
416 | (let ((copy-element (copy-function element-type))) |
417 | #'(lambda (from to &optional (offset 0)) |
418 | (unless (null-pointer-p (ref-pointer from offset)) |
419 | (loop |
420 | as from-list = (ref-pointer from offset) |
421 | then (glist-next from-list) |
422 | as to-list = (setf (ref-pointer to offset) (%gslist-append nil)) |
423 | then (%gslist-append to-list) |
424 | do (funcall copy-element from-list to-list) |
425 | while (glist-next from-list))))))) |