| 1 | ;; Common Lisp bindings for GTK+ v2.x |
| 2 | ;; Copyright 2001-2006 Espen S. Johnsen <espen@users.sf.net> |
| 3 | ;; |
| 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: |
| 11 | ;; |
| 12 | ;; The above copyright notice and this permission notice shall be |
| 13 | ;; included in all copies or substantial portions of the Software. |
| 14 | ;; |
| 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 | |
| 23 | ;; $Id: gboxed.lisp,v 1.21 2006/04/25 21:55:42 espen Exp $ |
| 24 | |
| 25 | (in-package "GLIB") |
| 26 | |
| 27 | |
| 28 | (defclass boxed (struct) |
| 29 | () |
| 30 | (:metaclass struct-class)) |
| 31 | |
| 32 | (defmethod instance-finalizer ((instance boxed)) |
| 33 | (let ((location (foreign-location instance)) |
| 34 | (type-number (type-number-of instance))) |
| 35 | #'(lambda () |
| 36 | (%boxed-free type-number location)))) |
| 37 | |
| 38 | |
| 39 | ;;;; Metaclass for boxed classes |
| 40 | |
| 41 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| 42 | (defclass boxed-class (struct-class) |
| 43 | ()) |
| 44 | |
| 45 | (defmethod validate-superclass ((class boxed-class) (super standard-class)) |
| 46 | (subtypep (class-name super) 'boxed))) |
| 47 | |
| 48 | |
| 49 | (defbinding %boxed-copy () pointer |
| 50 | (type-number type-number) |
| 51 | (location pointer)) |
| 52 | |
| 53 | (defbinding %boxed-free () nil |
| 54 | (type-number type-number) |
| 55 | (location pointer)) |
| 56 | |
| 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)) |
| 77 | |
| 78 | |
| 79 | (defun expand-boxed-type (type-number forward-p slots) |
| 80 | `(defclass ,(type-from-number type-number) (boxed) |
| 81 | ,(unless forward-p |
| 82 | slots) |
| 83 | (:metaclass boxed-class) |
| 84 | (:gtype ,(register-type-as type-number)))) |
| 85 | |
| 86 | (register-derivable-type 'boxed "GBoxed" 'expand-boxed-type) |
| 87 | |
| 88 | |
| 89 | ;;;; NULL terminated vector of strings |
| 90 | |
| 91 | (deftype strings () '(null-terminated-vector string)) |
| 92 | (register-type 'strings '|g_strv_get_type|) |