mdw@git.distorted.org.uk Git - clg/blob - glib/ginterface.lisp

   1 ;; Common Lisp bindings for GTK+ v2.0
   2 ;; Copyright (C) 2001 Espen S. Johnsen <espen@users.sourceforge.net>
   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: ginterface.lisp,v 1.1 2002-01-20 14:05:27 espen Exp $
  19
  20 (in-package "GLIB")
  21
  22 (use-prefix "g")
  23
  24 ;;;;
  25
  26 (defclass ginterface ())
  27
  28 (deftype-method translate-type-spec ginterface (type-spec)
  29   (declare (ignore type-spec))
  30   (translate-type-spec 'gobject))
  31
  32 (deftype-method size-of ginterface (type-spec)
  33   (declare (ignore type-spec))
  34   (size-of 'gobject))
  35
  36 (deftype-method translate-from-alien
  37     ginterface (type-spec location &optional weak-ref)
  38   (declare (ignore type-spec))
  39   (translate-from-alien 'gobject location weak-ref))
  40
  41 (deftype-method translate-to-alien
  42     ginterface (type-spec instance &optional weak-ref)
  43   (declare (ignore type-spec))
  44   (translate-to-alien 'gobject instance weak-ref))
  45
  46
  47
  48 ;;;; Metaclass for interfaces
  49
  50 (eval-when (:compile-toplevel :load-toplevel :execute)
  51   (defclass ginterface-class (pcl::standard-class)))
  52
  53
  54 (defmethod shared-initialize ((class ginterface-class) names
  55                               &rest initargs &key name alien-name)
  56   (declare (ignore initargs names))
  57   (let* ((class-name (or name (class-name class)))
  58          (type-number
  59           (find-type-number
  60            (or (first alien-name) (default-alien-type-name class-name)) t)))
  61     (register-type class-name type-number))
  62   (call-next-method))
  63
  64
  65 (defmethod validate-superclass
  66     ((class ginterface-class) (super pcl::standard-class))
  67   (subtypep (class-name super) 'ginterface))
  68
  69
  70 ;;;;
  71
  72 (defun expand-ginterface-type (type-number &rest args)
  73   (declare (ignore args))
  74   `(defclass ,(type-from-number type-number) (ginterface)
  75      ()
  76      (:metaclass ginterface-class)
  77      (:alien-name ,(find-type-name type-number))))
  78
  79
  80 (register-derivable-type 'ginterface "GInterface" 'expand-ginterface-type)