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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 1.5 2000-08-23 21:36:44 espen Exp $ |
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19 | |
20 | |
21 | (in-package "GLIB") |
22 | (use-prefix "g") |
23 | |
24 | |
25 | ;;;; Memory management |
26 | |
27 | (define-foreign ("g_malloc0" allocate-memory) () pointer |
28 | (size unsigned-long)) |
29 | |
30 | (define-foreign ("g_realloc" reallocate-memory) () pointer |
31 | (address pointer) |
32 | (size unsigned-long)) |
33 | |
34 | (define-foreign ("g_free" deallocate-memory) () nil |
35 | (address pointer)) |
36 | |
37 | (defun copy-memory (from length &optional (to (allocate-memory length))) |
38 | (kernel:system-area-copy from 0 to 0 (* 8 length)) |
39 | to) |
40 | |
41 | |
42 | |
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43 | ;;;; Quarks |
44 | |
45 | (deftype quark () 'unsigned) |
46 | |
47 | (define-foreign %quark-get-reserved () quark) |
48 | |
49 | (defvar *quark-from-object* (make-hash-table)) |
50 | (defvar *quark-to-object* (make-hash-table)) |
51 | |
52 | (defun quark-from-object (object &key (test #'eq)) |
53 | (let ((hash-code (sxhash object))) |
54 | (or |
55 | (assoc-ref object (gethash hash-code *quark-from-object*) :test test) |
56 | (let ((quark (%quark-get-reserved))) |
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57 | (setf |
58 | (gethash hash-code *quark-from-object*) |
59 | (append |
60 | (gethash hash-code *quark-from-object*) |
61 | (list (cons object quark)))) |
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62 | (setf (gethash quark *quark-to-object*) object) |
63 | quark)))) |
64 | |
65 | (defun quark-to-object (quark) |
66 | (gethash quark *quark-to-object*)) |
67 | |
68 | (defun remove-quark (quark) |
69 | (let* ((object (gethash quark *quark-to-object*)) |
70 | (hash-code (sxhash object))) |
71 | (remhash quark *quark-to-object*) |
72 | (unless (setf |
73 | (gethash hash-code *quark-from-object*) |
74 | (assoc-delete object (gethash hash-code *quark-from-object*))) |
75 | (remhash hash-code *quark-from-object*)))) |
76 | |
77 | |
78 | |
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79 | ;;;; Linked list |
80 | |
81 | (deftype glist () 'pointer) |
82 | (deftype double-list (type) `(or (null (cons ,type list)))) |
83 | |
84 | |
85 | (define-foreign ("g_list_append" %glist-append) () glist |
86 | (glist glist) |
87 | (data unsigned)) |
88 | |
89 | (defmacro glist-append (glist value type-spec) |
90 | (ecase (first (mklist (translate-type-spec type-spec))) |
91 | (unsigned `(%glist-append ,glist ,value)) |
92 | ; (signed `(%glist-append ,glist (signed-to-unsigned ,value))) |
93 | (system-area-pointer `(%glist-append ,glist (system:sap-int ,value))))) |
94 | |
95 | |
96 | (defmacro glist-data (glist type-spec) |
97 | (ecase (first (mklist (translate-type-spec type-spec))) |
98 | (unsigned `(sap-ref-unsigned ,glist 0)) |
99 | (signed `(sap-ref-signed ,glist 0)) |
100 | (system-area-pointer `(sap-ref-sap ,glist 0)))) |
101 | |
102 | |
103 | (defun glist-next (glist) |
104 | (unless (null-pointer-p glist) |
105 | (sap-ref-sap glist +size-of-sap+))) |
106 | |
107 | |
108 | (define-foreign ("g_list_free" glist-free) () nil |
109 | (glist pointer)) |
110 | |
111 | |
112 | (deftype-method translate-type-spec double-list (type-spec) |
113 | (declare (ignore type-spec)) |
114 | 'system-area-pointer) |
115 | |
116 | (deftype-method translate-to-alien double-list (type-spec list &optional copy) |
117 | (declare (ignore copy)) |
118 | (let* ((element-type-spec (second (type-expand-to 'double-list type-spec))) |
119 | (to-alien (translate-to-alien element-type-spec 'element t))) |
120 | `(let ((glist (make-pointer 0))) |
121 | (dolist (element ,list glist) |
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122 | (setq glist (glist-append glist ,to-alien ,element-type-spec)))))) |
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123 | |
124 | (deftype-method |
125 | translate-from-alien |
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126 | double-list (type-spec glist &optional (alloc :reference)) |
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127 | (let ((element-type-spec (second (type-expand-to 'double-list type-spec)))) |
128 | `(let ((glist ,glist) |
129 | (list nil)) |
130 | (do ((tmp glist (glist-next tmp))) |
131 | ((null-pointer-p tmp)) |
132 | (push |
133 | ,(translate-from-alien |
134 | element-type-spec `(glist-data tmp ,element-type-spec) alloc) |
135 | list)) |
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136 | ,(when (eq alloc :reference) |
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137 | '(glist-free glist)) |
138 | (nreverse list)))) |
139 | |
140 | (deftype-method cleanup-alien double-list (type-spec glist &optional copied) |
141 | (declare (ignore copied)) |
142 | (let* ((element-type-spec (second (type-expand-to 'double-list type-spec))) |
143 | (alien-type-spec (translate-type-spec element-type-spec))) |
144 | `(let ((glist ,glist)) |
145 | (unless (null-pointer-p glist) |
146 | ,(when (eq alien-type-spec 'system-area-pointer) |
147 | `(do ((tmp glist (glist-next tmp))) |
148 | ((null-pointer-p tmp)) |
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149 | ,(cleanup-alien |
150 | element-type-spec `(glist-data tmp ,element-type-spec) t))) |
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151 | (glist-free glist))))) |
152 | |
153 | |
154 | |
155 | ;;; Array |
156 | #| |
157 | (define-foreign ("g_array_new" %array-new) () garray |
158 | (zero-terminated boolean) |
159 | (clear boolean) |
160 | (element-size unsigned-int)) |
161 | |
162 | (defun array-new (&key zero-terminated clear (element-size 4) initial-contents) |
163 | (let ((array (%array-new zero-terminated clear element-size))) |
164 | (when initial-contents |
165 | (dolist (element initial-contents) |
166 | (array-append array element))) |
167 | array)) |
168 | |
169 | (define-foreign ("g_array_free" %array-free) () none |
170 | (array garray) |
171 | (free-segment boolean)) |
172 | |
173 | (defun array-free (array &optional free-data (free-segment t)) |
174 | (when free-data |
175 | (dotimes (i (array-get-size array)) |
176 | (free (array-get-pointer array i)))) |
177 | (%array-free array free-segment)) |
178 | |
179 | (defmacro with-array (binding &body body) |
180 | (let ((array (gensym))) |
181 | (destructuring-bind (var &rest args |
182 | &key (free-contents nil) (free-segment t) |
183 | &allow-other-keys ) |
184 | binding |
185 | (remf args :free-contents) |
186 | (remf args :free-segment) |
187 | `(let* ((,array (array-new ,@args)) |
188 | (,var (array-get-data ,array))) |
189 | (unwind-protect |
190 | ,@body |
191 | (array-free ,array ,free-contents ,free-segment)))))) |
192 | |
193 | ;; cl-gtk.c |
194 | (define-foreign ("g_array_insert_int" array-insert-int) () garray |
195 | (array garray) |
196 | (index unsigned-int) |
197 | (value int)) |
198 | |
199 | (defun array-insert-value (array index value) |
200 | (etypecase value |
201 | (null (array-insert-int array index 0)) |
202 | (integer (array-insert-int array index value)) |
203 | (string (array-insert-int array index (sap-int (gforeign::pointer-to-sap (%strdup value))))) |
204 | (pointer (array-insert-int array index (sap-int (gforeign::pointer-to-sap value)))))) |
205 | |
206 | (defun array-prepend (array value) |
207 | (array-insert-value array 0 value)) |
208 | |
209 | (defun array-append (array value) |
210 | (array-insert-value array (array-get-size array) value)) |
211 | |
212 | ;; cl-gtk.c |
213 | (define-foreign ("g_array_get_int" array-get-int) () int |
214 | (array garray) |
215 | (index unsigned-int)) |
216 | |
217 | (defun array-get-pointer (array index) |
218 | (gforeign::sap-to-pointer (int-sap (array-get-int array index)))) |
219 | |
220 | ;; cl-gtk.c |
221 | (define-foreign ("g_array_get_data" array-get-data) () pointer |
222 | (array garray)) |
223 | |
224 | (define-foreign ("g_array_set_size" array-set-size) () garray |
225 | (array garray) |
226 | (size unsigned-int)) |
227 | |
228 | ;; cl-gtk.c |
229 | (define-foreign ("g_array_get_size" array-get-size) () int |
230 | (array garray)) |
231 | |# |