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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 1.2 2000/08/15 23:25:18 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 | |
43 | ;;;; Linked list |
44 | |
45 | (deftype glist () 'pointer) |
46 | (deftype double-list (type) `(or (null (cons ,type list)))) |
47 | |
48 | |
49 | (define-foreign ("g_list_append" %glist-append) () glist |
50 | (glist glist) |
51 | (data unsigned)) |
52 | |
53 | (defmacro glist-append (glist value type-spec) |
54 | (ecase (first (mklist (translate-type-spec type-spec))) |
55 | (unsigned `(%glist-append ,glist ,value)) |
56 | ; (signed `(%glist-append ,glist (signed-to-unsigned ,value))) |
57 | (system-area-pointer `(%glist-append ,glist (system:sap-int ,value))))) |
58 | |
59 | |
60 | (defmacro glist-data (glist type-spec) |
61 | (ecase (first (mklist (translate-type-spec type-spec))) |
62 | (unsigned `(sap-ref-unsigned ,glist 0)) |
63 | (signed `(sap-ref-signed ,glist 0)) |
64 | (system-area-pointer `(sap-ref-sap ,glist 0)))) |
65 | |
66 | |
67 | (defun glist-next (glist) |
68 | (unless (null-pointer-p glist) |
69 | (sap-ref-sap glist +size-of-sap+))) |
70 | |
71 | |
72 | (define-foreign ("g_list_free" glist-free) () nil |
73 | (glist pointer)) |
74 | |
75 | |
76 | (deftype-method translate-type-spec double-list (type-spec) |
77 | (declare (ignore type-spec)) |
78 | 'system-area-pointer) |
79 | |
80 | (deftype-method translate-to-alien double-list (type-spec list &optional copy) |
81 | (declare (ignore copy)) |
82 | (let* ((element-type-spec (second (type-expand-to 'double-list type-spec))) |
83 | (to-alien (translate-to-alien element-type-spec 'element t))) |
84 | `(let ((glist (make-pointer 0))) |
85 | (dolist (element ,list glist) |
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86 | (setq glist (glist-append glist ,to-alien ,element-type-spec)))))) |
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87 | |
88 | (deftype-method |
89 | translate-from-alien |
90 | double-list (type-spec glist &optional (alloc :dynamic)) |
91 | (let ((element-type-spec (second (type-expand-to 'double-list type-spec)))) |
92 | `(let ((glist ,glist) |
93 | (list nil)) |
94 | (do ((tmp glist (glist-next tmp))) |
95 | ((null-pointer-p tmp)) |
96 | (push |
97 | ,(translate-from-alien |
98 | element-type-spec `(glist-data tmp ,element-type-spec) alloc) |
99 | list)) |
100 | ,(when (eq alloc :dynamic) |
101 | '(glist-free glist)) |
102 | (nreverse list)))) |
103 | |
104 | (deftype-method cleanup-alien double-list (type-spec glist &optional copied) |
105 | (declare (ignore copied)) |
106 | (let* ((element-type-spec (second (type-expand-to 'double-list type-spec))) |
107 | (alien-type-spec (translate-type-spec element-type-spec))) |
108 | `(let ((glist ,glist)) |
109 | (unless (null-pointer-p glist) |
110 | ,(when (eq alien-type-spec 'system-area-pointer) |
111 | `(do ((tmp glist (glist-next tmp))) |
112 | ((null-pointer-p tmp)) |
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113 | ,(cleanup-alien |
114 | element-type-spec `(glist-data tmp ,element-type-spec) t))) |
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115 | (glist-free glist))))) |
116 | |
117 | |
118 | |
119 | ;;; Array |
120 | #| |
121 | (define-foreign ("g_array_new" %array-new) () garray |
122 | (zero-terminated boolean) |
123 | (clear boolean) |
124 | (element-size unsigned-int)) |
125 | |
126 | (defun array-new (&key zero-terminated clear (element-size 4) initial-contents) |
127 | (let ((array (%array-new zero-terminated clear element-size))) |
128 | (when initial-contents |
129 | (dolist (element initial-contents) |
130 | (array-append array element))) |
131 | array)) |
132 | |
133 | (define-foreign ("g_array_free" %array-free) () none |
134 | (array garray) |
135 | (free-segment boolean)) |
136 | |
137 | (defun array-free (array &optional free-data (free-segment t)) |
138 | (when free-data |
139 | (dotimes (i (array-get-size array)) |
140 | (free (array-get-pointer array i)))) |
141 | (%array-free array free-segment)) |
142 | |
143 | (defmacro with-array (binding &body body) |
144 | (let ((array (gensym))) |
145 | (destructuring-bind (var &rest args |
146 | &key (free-contents nil) (free-segment t) |
147 | &allow-other-keys ) |
148 | binding |
149 | (remf args :free-contents) |
150 | (remf args :free-segment) |
151 | `(let* ((,array (array-new ,@args)) |
152 | (,var (array-get-data ,array))) |
153 | (unwind-protect |
154 | ,@body |
155 | (array-free ,array ,free-contents ,free-segment)))))) |
156 | |
157 | ;; cl-gtk.c |
158 | (define-foreign ("g_array_insert_int" array-insert-int) () garray |
159 | (array garray) |
160 | (index unsigned-int) |
161 | (value int)) |
162 | |
163 | (defun array-insert-value (array index value) |
164 | (etypecase value |
165 | (null (array-insert-int array index 0)) |
166 | (integer (array-insert-int array index value)) |
167 | (string (array-insert-int array index (sap-int (gforeign::pointer-to-sap (%strdup value))))) |
168 | (pointer (array-insert-int array index (sap-int (gforeign::pointer-to-sap value)))))) |
169 | |
170 | (defun array-prepend (array value) |
171 | (array-insert-value array 0 value)) |
172 | |
173 | (defun array-append (array value) |
174 | (array-insert-value array (array-get-size array) value)) |
175 | |
176 | ;; cl-gtk.c |
177 | (define-foreign ("g_array_get_int" array-get-int) () int |
178 | (array garray) |
179 | (index unsigned-int)) |
180 | |
181 | (defun array-get-pointer (array index) |
182 | (gforeign::sap-to-pointer (int-sap (array-get-int array index)))) |
183 | |
184 | ;; cl-gtk.c |
185 | (define-foreign ("g_array_get_data" array-get-data) () pointer |
186 | (array garray)) |
187 | |
188 | (define-foreign ("g_array_set_size" array-set-size) () garray |
189 | (array garray) |
190 | (size unsigned-int)) |
191 | |
192 | ;; cl-gtk.c |
193 | (define-foreign ("g_array_get_size" array-get-size) () int |
194 | (array garray)) |
195 | |# |