| | 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 1.9 2002-03-19 17:06:11 espen Exp $ |
| | 19 | |
| | 20 | (in-package "GLIB") |
| | 21 | |
| | 22 | |
| | 23 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| | 24 | (init-types-in-library "libgobject-2.0.so") |
| | 25 | (defclass boxed (proxy) |
| | 26 | () |
| | 27 | (:metaclass proxy-class) |
| | 28 | (:copy %boxed-copy) |
| | 29 | (:free %boxed-free))) |
| | 30 | |
| | 31 | (defbinding %boxed-copy (type location) pointer |
| | 32 | ((find-type-number type) type-number) |
| | 33 | (location pointer)) |
| | 34 | |
| | 35 | (defbinding %boxed-free (type location) nil |
| | 36 | ((find-type-number type) type-number) |
| | 37 | (location pointer)) |
| | 38 | |
| | 39 | |
| | 40 | ;;;; Metaclass for boxed classes |
| | 41 | |
| | 42 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| | 43 | (defclass boxed-class (proxy-class)) |
| | 44 | |
| | 45 | |
| | 46 | (defmethod shared-initialize ((class boxed-class) names |
| | 47 | &rest initargs &key name alien-name) |
| | 48 | (declare (ignore initargs names)) |
| | 49 | (call-next-method) |
| | 50 | |
| | 51 | (let* ((class-name (or name (class-name class))) |
| | 52 | (type-number |
| | 53 | (find-type-number |
| | 54 | (or (first alien-name) (default-alien-type-name class-name))))) |
| | 55 | (register-type class-name type-number))) |
| | 56 | |
| | 57 | |
| | 58 | (defmethod validate-superclass |
| | 59 | ((class boxed-class) (super pcl::standard-class)) |
| | 60 | (subtypep (class-name super) 'boxed))) |
| | 61 | |
| | 62 | |
| | 63 | ;;;; |
| | 64 | |
| | 65 | (defun expand-boxed-type (type-number &optional slots) |
| | 66 | `(defclass ,(type-from-number type-number) (boxed) |
| | 67 | ,slots |
| | 68 | (:metaclass boxed-class) |
| | 69 | (:alien-name ,(find-type-name type-number)))) |
| | 70 | |
| | 71 | (register-derivable-type 'boxed "GBoxed" 'expand-boxed-type) |
| | 72 | |
| | 73 | ;;;; Special boxed types |
| | 74 | |
| | 75 | (defclass gstring (boxed) |
| | 76 | () |
| | 77 | (:metaclass boxed-class) |
| | 78 | (:alien-name "GString")) |
| | 79 | |
| | 80 | (deftype-method translate-from-alien |
| | 81 | gstring (type-spec location &optional weak-ref) |
| | 82 | `(let ((location ,location)) |
| | 83 | (unless (null-pointer-p location) |
| | 84 | (prog1 |
| | 85 | (c-call::%naturalize-c-string location) |
| | 86 | ,(unless weak-ref |
| | 87 | (unreference-alien type-spec location)))))) |
| | 88 | |
| | 89 | (deftype-method translate-to-alien |
| | 90 | gstring (type-spec string &optional weak-ref) |
| | 91 | (declare (ignore weak-ref)) |
| | 92 | `(let ((string ,string)) |
| | 93 | ;; Always copy strings to prevent seg fault due to GC |
| | 94 | (funcall |
| | 95 | ',(proxy-class-copy (find-class type-spec)) |
| | 96 | ',type-spec |
| | 97 | (make-pointer (1+ (kernel:get-lisp-obj-address string)))))) |
| | 98 | |
| | 99 | (deftype-method cleanup-alien gstring (type-spec c-string &optional weak-ref) |
| | 100 | (when weak-ref |
| | 101 | (unreference-alien type-spec c-string))) |
| | 102 | |
~mdw / clg / blame_incremental