55212af1 |
1 | ;; Common Lisp bindings for GTK+ v2.x |
2 | ;; Copyright 2001-2005 Espen S. Johnsen <espen@users.sf.net> |
b44caf77 |
3 | ;; |
55212af1 |
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: |
b44caf77 |
11 | ;; |
55212af1 |
12 | ;; The above copyright notice and this permission notice shall be |
13 | ;; included in all copies or substantial portions of the Software. |
b44caf77 |
14 | ;; |
55212af1 |
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 | |
7ce0497d |
23 | ;; $Id: gboxed.lisp,v 1.20 2006/02/04 12:15:31 espen Exp $ |
b44caf77 |
24 | |
25 | (in-package "GLIB") |
26 | |
27 | |
ce63ad97 |
28 | (defclass boxed (struct) |
6baf860c |
29 | () |
30 | (:metaclass struct-class)) |
b44caf77 |
31 | |
29933e83 |
32 | (defmethod instance-finalizer ((instance boxed)) |
7ce0497d |
33 | (let ((location (foreign-location instance)) |
29933e83 |
34 | (type-number (type-number-of instance))) |
35 | #'(lambda () |
36 | (remove-cached-instance location) |
37 | (%boxed-free type-number location)))) |
38 | |
b44caf77 |
39 | |
40 | ;;;; Metaclass for boxed classes |
41 | |
42 | (eval-when (:compile-toplevel :load-toplevel :execute) |
6baf860c |
43 | (defclass boxed-class (struct-class) |
935a783c |
44 | ()) |
b44caf77 |
45 | |
6baf860c |
46 | (defmethod validate-superclass ((class boxed-class) (super standard-class)) |
47 | (subtypep (class-name super) 'boxed))) |
b44caf77 |
48 | |
b44caf77 |
49 | |
dcb31db6 |
50 | (defmethod shared-initialize ((class boxed-class) names &key name gtype) |
51 | (declare (ignore names)) |
6baf860c |
52 | (call-next-method) |
dcb31db6 |
53 | (let ((class-name (or name (class-name class)))) |
54 | (unless (find-type-number class-name) |
55 | (register-type class-name |
56 | (or (first gtype) (default-type-init-name class-name)))))) |
6baf860c |
57 | |
29933e83 |
58 | (defbinding %boxed-copy () pointer |
59 | (type-number type-number) |
6baf860c |
60 | (location pointer)) |
61 | |
29933e83 |
62 | (defbinding %boxed-free () nil |
63 | (type-number type-number) |
6baf860c |
64 | (location pointer)) |
65 | |
66 | (defmethod reference-foreign ((class boxed-class) location) |
29933e83 |
67 | (%boxed-copy (find-type-number class) location)) |
6baf860c |
68 | |
69 | (defmethod unreference-foreign ((class boxed-class) location) |
29933e83 |
70 | (%boxed-free (find-type-number class) location)) |
b44caf77 |
71 | |
72 | |
3a935dfa |
73 | ;;;; |
74 | |
e9934f39 |
75 | (defun expand-boxed-type (type-number forward-p slots) |
3a935dfa |
76 | `(defclass ,(type-from-number type-number) (boxed) |
e9934f39 |
77 | ,(unless forward-p |
78 | slots) |
3a935dfa |
79 | (:metaclass boxed-class) |
80031aba |
80 | (:gtype ,(register-type-as type-number)))) |
b44caf77 |
81 | |
6895c081 |
82 | (register-derivable-type 'boxed "GBoxed" 'expand-boxed-type) |
888d25fb |
83 | |
84 | ;;;; Special boxed types |
85 | |
6baf860c |
86 | ;; (defclass gstring (boxed) |
87 | ;; () |
88 | ;; (:metaclass boxed-class) |
89 | ;; (:alien-name "GString")) |
90 | |
91 | ;; (deftype-method translate-from-alien |
92 | ;; gstring (type-spec location &optional weak-ref) |
93 | ;; `(let ((location ,location)) |
94 | ;; (unless (null-pointer-p location) |
95 | ;; (prog1 |
96 | ;; (c-call::%naturalize-c-string location) |
97 | ;; ,(unless weak-ref |
98 | ;; (unreference-alien type-spec location)))))) |
99 | |
100 | ;; (deftype-method translate-to-alien |
101 | ;; gstring (type-spec string &optional weak-ref) |
102 | ;; (declare (ignore weak-ref)) |
103 | ;; `(let ((string ,string)) |
104 | ;; ;; Always copy strings to prevent seg fault due to GC |
105 | ;; (funcall |
106 | ;; ',(proxy-class-copy (find-class type-spec)) |
107 | ;; ',type-spec |
108 | ;; (make-pointer (1+ (kernel:get-lisp-obj-address string)))))) |
109 | |
110 | ;; (deftype-method cleanup-alien gstring (type-spec c-string &optional weak-ref) |
111 | ;; (when weak-ref |
112 | ;; (unreference-alien type-spec c-string))) |
888d25fb |
113 | |
8574c8ad |
114 | |
115 | |
48ae54db |
116 | ;;;; NULL terminated vector of strings |
8574c8ad |
117 | |
48ae54db |
118 | (deftype strings () '(null-terminated-vector string)) |
dcb31db6 |
119 | (register-type 'strings '|g_strv_get_type|) |