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1 | ;; Common Lisp bindings for GTK+ v2.x |
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2 | ;; Copyright 2001-2006 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: gboxed.lisp,v 1.21 2006/04/25 21:55:42 espen Exp $ |
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24 | |
25 | (in-package "GLIB") |
26 | |
27 | |
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28 | (defclass boxed (struct) |
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29 | () |
30 | (:metaclass struct-class)) |
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31 | |
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32 | (defmethod instance-finalizer ((instance boxed)) |
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33 | (let ((location (foreign-location instance)) |
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34 | (type-number (type-number-of instance))) |
35 | #'(lambda () |
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36 | (%boxed-free type-number location)))) |
37 | |
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38 | |
39 | ;;;; Metaclass for boxed classes |
40 | |
41 | (eval-when (:compile-toplevel :load-toplevel :execute) |
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42 | (defclass boxed-class (struct-class) |
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43 | ()) |
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44 | |
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45 | (defmethod validate-superclass ((class boxed-class) (super standard-class)) |
46 | (subtypep (class-name super) 'boxed))) |
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47 | |
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48 | |
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49 | (defbinding %boxed-copy () pointer |
50 | (type-number type-number) |
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51 | (location pointer)) |
52 | |
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53 | (defbinding %boxed-free () nil |
54 | (type-number type-number) |
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55 | (location pointer)) |
56 | |
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57 | (defmethod shared-initialize ((class boxed-class) names |
58 | &key name gtype ref unref) |
59 | (declare (ignore names)) |
60 | (let* ((class-name (or name (class-name class))) |
61 | (type-number |
62 | (register-type class-name |
63 | (or |
64 | (first gtype) |
65 | (default-type-init-name class-name))))) |
66 | (unless (or ref (slot-boundp class 'ref)) |
67 | (setf |
68 | (slot-value class 'ref) |
69 | #'(lambda (location) |
70 | (%boxed-copy type-number location)))) |
71 | (unless (or unref (slot-boundp class 'unref)) |
72 | (setf |
73 | (slot-value class 'unref) |
74 | #'(lambda (location) |
75 | (%boxed-free type-number location))))) |
76 | (call-next-method)) |
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77 | |
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78 | |
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79 | (defun expand-boxed-type (type-number forward-p slots) |
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80 | `(defclass ,(type-from-number type-number) (boxed) |
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81 | ,(unless forward-p |
82 | slots) |
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83 | (:metaclass boxed-class) |
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84 | (:gtype ,(register-type-as type-number)))) |
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85 | |
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86 | (register-derivable-type 'boxed "GBoxed" 'expand-boxed-type) |
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87 | |
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88 | |
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89 | ;;;; NULL terminated vector of strings |
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90 | |
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91 | (deftype strings () '(null-terminated-vector string)) |
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92 | (register-type 'strings '|g_strv_get_type|) |