| 1 | ;; Common Lisp bindings for GTK+ v2.0 |
| 2 | ;; Copyright (C) 2001 Espen S. Johnsen <esj@stud.cs.uit.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 | |
| 18 | ;; $Id: gboxed.lisp,v 1.3 2001-05-11 16:04:33 espen Exp $ |
| 19 | |
| 20 | (in-package "GLIB") |
| 21 | |
| 22 | |
| 23 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| 24 | (defclass boxed (proxy) |
| 25 | () |
| 26 | (:metaclass proxy-class) |
| 27 | (:copy %boxed-copy) |
| 28 | (:free %boxed-free))) |
| 29 | |
| 30 | (defbinding %boxed-copy (type location) pointer |
| 31 | ((find-type-number type) type-number) |
| 32 | (location pointer)) |
| 33 | |
| 34 | (defbinding %boxed-free (type location) nil |
| 35 | ((find-type-number type) type-number) |
| 36 | (location pointer)) |
| 37 | |
| 38 | |
| 39 | ;;;; Metaclass for boxed classes |
| 40 | |
| 41 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| 42 | (defclass boxed-class (proxy-class))) |
| 43 | |
| 44 | |
| 45 | (defmethod shared-initialize ((class boxed-class) names |
| 46 | &rest initargs &key name alien-name) |
| 47 | (declare (ignore initargs names)) |
| 48 | (call-next-method) |
| 49 | |
| 50 | (let* ((class-name (or name (class-name class))) |
| 51 | (type-number |
| 52 | (find-type-number |
| 53 | (or (first alien-name) (default-alien-type-name class-name))))) |
| 54 | (register-type class-name type-number))) |
| 55 | |
| 56 | |
| 57 | (defmethod validate-superclass |
| 58 | ((class boxed-class) (super pcl::standard-class)) |
| 59 | (subtypep (class-name super) 'boxed)) |
| 60 | |
| 61 | |
| 62 | ;;;; |
| 63 | |
| 64 | (defun expand-boxed-type (type-number &optional slots) |
| 65 | `(defclass ,(type-from-number type-number) (boxed) |
| 66 | ,slots |
| 67 | (:metaclass boxed-class) |
| 68 | (:alien-name ,(find-type-name type-number)))) |
| 69 | |
| 70 | (register-derivable-type 'boxed "GBoxed" :expand 'expand-boxed-type) |