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

   1 ;; Common Lisp bindings for GTK+ v2.0
   2 ;; Copyright (C) 2000 Espen S. Johnsen <espejohn@online.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: gobject.lisp,v 1.1 2000-08-14 16:44:30 espen Exp $
  19
  20 (in-package "GLIB")
  21
  22
  23 (eval-when (:compile-toplevel :load-toplevel :execute)
  24   (defclass gobject (gtype)
  25     ()
  26     (:metaclass gtype-class)
  27     (:alien-name "GObject"))
  28
  29   (defclass gobject-class (gtype-class)))
  30
  31
  32 ;;;; Methods for gobject
  33
  34 ;; Specializing reference-instance and unreference-instance on gobject
  35 ;; is not really necessary but done for efficiency
  36
  37 (defmethod reference-instance ((object gobject))
  38   (%object-ref object)
  39   object)
  40
  41 (defmethod unreference-instance ((object gobject))
  42   (%object-unref object))
  43
  44 (deftype-method alien-ref gobject (type-spec)
  45   (declare (ignore type-spec))
  46   '%object-ref)
  47
  48 (deftype-method alien-unref gobject (type-spec)
  49   (declare (ignore type-spec))
  50   '%object-unref)
  51
  52 (define-foreign %object-ref () pointer
  53   (object (or gobject pointer)))
  54
  55 (define-foreign %object-unref () nil
  56   (object (or gobject pointer)))
  57
  58
  59 ;; Parameter stuff not yet implemented
  60
  61 ; (define-foreign object-set-param () nil
  62 ;   (object gobject)
  63 ;   (name string)
  64 ;   (value gvalue))
  65
  66 ; (define-foreign object-get-param () nil
  67 ;   (object gobject)
  68 ;   (name string)
  69 ;   (value gvalue :out))
  70
  71 ; (define-foreign object-queue-param-changed () nil
  72 ;   (object gobject)
  73 ;   (name string))
  74
  75
  76
  77 ;;;; Methods for gobject-class
  78
  79 (defmethod shared-initialize ((class gobject-class) names &rest initargs
  80                               &key type-init name)
  81   (declare (ignore initargs names))
  82   (let ((alien
  83          (alien::%heap-alien
  84           (alien::make-heap-alien-info
  85            :type (alien::parse-alien-type '(function (unsigned 32)))
  86            :sap-form (system:foreign-symbol-address
  87                       (or
  88                        (first type-init)
  89                        (default-alien-func-name
  90                          (format
  91                           nil "~A_get_type" (or name (class-name class))))))))))
  92     (alien:alien-funcall alien))
  93   (call-next-method))
  94
  95
  96 ; (define-foreign object-class-install-param () nil
  97 ;   (class pointer)
  98 ;   (id unsigned-int)
  99 ;   (parameter parameter))
 100
 101 ; (define-foreign object-class-find-param-spec () parameter
 102 ;   (class pointer)
 103 ;   (name string))
 104