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

   1 ;; Common Lisp bindings for GTK+ v2.0
   2 ;; Copyright (C) 2000 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: gparam.lisp,v 1.10 2004-11-12 15:01:42 espen Exp $
  19
  20 (in-package "GLIB")
  21
  22 (deftype gvalue () 'pointer)
  23
  24 (eval-when (:compile-toplevel :load-toplevel :execute)
  25   (defbinding (size-of-gvalue "size_of_gvalue") () unsigned-int))
  26
  27 ;(defconstant +gvalue-size+ (+ (size-of 'type-number) (* 2 (size-of 'double-float))))
  28 (defconstant +gvalue-size+ #.(size-of-gvalue))
  29
  30 (defconstant +gvalue-value-offset+ (size-of 'type-number))
  31
  32 (defbinding (%gvalue-init "g_value_init") () nil
  33   (value gvalue)
  34   (type type-number))
  35
  36 (defbinding (gvalue-unset "g_value_unset") () nil
  37   (value gvalue))
  38
  39 (defun gvalue-init (gvalue type &optional (value nil value-p))
  40   (%gvalue-init gvalue (find-type-number type))
  41   (when value-p
  42     (funcall (writer-function type) value gvalue +gvalue-value-offset+)))
  43
  44 (defun gvalue-new (type &optional (value nil value-p))
  45   (let ((gvalue (allocate-memory +gvalue-size+)))
  46     (if value-p
  47         (gvalue-init gvalue type value)
  48       (gvalue-init gvalue type))
  49     gvalue))
  50
  51 (defun gvalue-free (gvalue &optional (unset-p t))
  52   (unless (null-pointer-p gvalue)
  53     (when unset-p
  54       (gvalue-unset gvalue))
  55     (deallocate-memory gvalue)))
  56
  57 (defun gvalue-type (gvalue)
  58   (type-from-number (system:sap-ref-32 gvalue 0)))
  59
  60 (defun gvalue-get (gvalue)
  61   (funcall (reader-function (gvalue-type gvalue))
  62    gvalue +gvalue-value-offset+))
  63
  64 (defun gvalue-set (gvalue value)
  65   (funcall (writer-function (gvalue-type gvalue))
  66    value gvalue +gvalue-value-offset+)
  67   value)
  68
  69 (defmacro with-gvalue ((gvalue type &optional (value nil value-p)) &body body)
  70   `(let ((,gvalue ,(if value-p
  71                        `(gvalue-new ',type ,value)
  72                      `(gvalue-new ',type ,value))))
  73     (unwind-protect
  74          (progn
  75            ,@body
  76            ,(unless value-p `(gvalue-get ,gvalue)))
  77       (gvalue-free ,gvalue))))
  78
  79
  80 (deftype param-flag-type ()
  81   '(flags
  82     (:readable 1)
  83     (:writable 2)
  84     (:construct 4)
  85     (:construct-only 8)
  86     (:lax-validation 16)
  87     (:private 32)))
  88
  89 (eval-when (:compile-toplevel :load-toplevel :execute)
  90   (defclass param-spec-class (ginstance-class)
  91     ())
  92
  93   (defmethod validate-superclass
  94       ((class param-spec-class) (super pcl::standard-class))
  95     t ;(subtypep (class-name super) 'param)
  96 ))
  97
  98
  99 (defbinding %param-spec-ref () pointer
 100   (location pointer))
 101
 102 (defbinding %param-spec-unref () nil
 103   (location pointer))
 104
 105 (defmethod reference-foreign ((class param-spec-class) location)
 106   (declare (ignore class))
 107   (%param-spec-ref location))
 108
 109 (defmethod unreference-foreign ((class param-spec-class) location)
 110   (declare (ignore class))
 111   (%param-spec-unref location))
 112
 113
 114
 115 ;; TODO: rename to param-spec
 116 (defclass param (ginstance)
 117   ((name
 118     :allocation :alien
 119     :reader param-name
 120     :type string)
 121    (flags
 122     :allocation :alien
 123     :reader param-flags
 124     :type param-flag-type)
 125    (value-type
 126     :allocation :alien
 127     :reader param-value-type
 128     :type type-number)
 129    (owner-type
 130     :allocation :alien
 131     :reader param-owner-type
 132     :type type-number)
 133    (nickname
 134     :allocation :virtual
 135     :getter "g_param_spec_get_nick"
 136     :reader param-nickname
 137     :type string)
 138    (documentation
 139     :allocation :virtual
 140     :getter "g_param_spec_get_blurb"
 141     :reader param-documentation
 142     :type string))
 143   (:metaclass param-spec-class))
 144
 145
 146 (defclass param-char (param)
 147   ((minimum
 148     :allocation :alien
 149     :reader param-char-minimum
 150     :type char)
 151    (maximum
 152     :allocation :alien
 153     :reader param-char-maximum
 154     :type char)
 155    (default-value
 156     :allocation :alien
 157     :reader param-char-default-value
 158     :type char))
 159   (:metaclass param-spec-class))
 160
 161 (defclass param-unsigned-char (param)
 162   (
 163 ; (minimum
 164 ;     :allocation :alien
 165 ;     :reader param-unsigned-char-minimum
 166 ;     :type unsigned-char)
 167 ;    (maximum
 168 ;     :allocation :alien
 169 ;     :reader param-unsigned-char-maximum
 170 ;     :type unsigned-char)
 171 ;    (default-value
 172 ;     :allocation :alien
 173 ;     :reader param-unsigned-char-default-value
 174 ;     :type unsigned-char)
 175    )
 176   (:metaclass param-spec-class)
 177   (:alien-name "GParamUChar"))
 178
 179 (defclass param-boolean (param)
 180   ((default-value
 181      :allocation :alien
 182      :reader param-boolean-default-value
 183      :type boolean))
 184   (:metaclass param-spec-class))
 185
 186 (defclass param-int (param)
 187   ((minimum
 188     :allocation :alien
 189     :reader param-int-minimum
 190     :type int)
 191    (maximum
 192     :allocation :alien
 193     :reader param-int-maximum
 194     :type int)
 195    (default-value
 196     :allocation :alien
 197     :reader param-int-default-value
 198     :type int))
 199   (:metaclass param-spec-class))
 200
 201 (defclass param-unsigned-int (param)
 202   ((minimum
 203     :allocation :alien
 204     :reader param-unsigned-int-minimum
 205     :type unsigned-int)
 206    (maximum
 207     :allocation :alien
 208     :reader param-unsigned-int-maximum
 209     :type unsigned-int)
 210    (default-value
 211     :allocation :alien
 212     :reader param-unsigned-int-default-value
 213     :type unsigned-int))
 214   (:metaclass param-spec-class)
 215   (:alien-name "GParamUInt"))
 216
 217 (defclass param-long (param)
 218   ((minimum
 219     :allocation :alien
 220     :reader param-long-minimum
 221     :type long)
 222    (maximum
 223     :allocation :alien
 224     :reader param-long-maximum
 225     :type long)
 226    (default-value
 227     :allocation :alien
 228     :reader param-long-default-value
 229     :type long))
 230   (:metaclass param-spec-class))
 231
 232 (defclass param-unsigned-long (param)
 233   ((minimum
 234     :allocation :alien
 235     :reader param-unsigned-long-minimum
 236     :type unsigned-long)
 237    (maximum
 238     :allocation :alien
 239     :reader param-unsigned-long-maximum
 240     :type unsigned-long)
 241    (default-value
 242     :allocation :alien
 243     :reader param-unsigned-long-default-value
 244     :type unsigned-long))
 245   (:metaclass param-spec-class)
 246   (:alien-name "GParamULong"))
 247
 248 (defclass param-unichar (param)
 249   ()
 250   (:metaclass param-spec-class))
 251
 252 (defclass param-enum (param)
 253   ((class
 254     :allocation :alien
 255     :reader param-enum-class
 256     :type pointer)
 257    (default-value
 258     :allocation :alien
 259     :reader param-enum-default-value
 260     :type long))
 261   (:metaclass param-spec-class))
 262
 263 (defclass param-flags (param)
 264   ((class
 265     :allocation :alien
 266     :reader param-flags-class
 267     :type pointer)
 268    (default-value
 269     :allocation :alien
 270     :reader param-flags-default-value
 271     :type long))
 272   (:metaclass param-spec-class))
 273
 274 (defclass param-single-float (param)
 275   ((minimum
 276     :allocation :alien
 277     :reader param-single-float-minimum
 278     :type single-float)
 279    (maximum
 280     :allocation :alien
 281     :reader param-single-float-maximum
 282     :type single-float)
 283    (default-value
 284     :allocation :alien
 285     :reader param-single-float-default-value
 286     :type single-float)
 287    (epsilon
 288     :allocation :alien
 289     :reader param-single-float-epsilon
 290     :type single-float))
 291   (:metaclass param-spec-class)
 292   (:alien-name "GParamFloat"))
 293
 294 (defclass param-double-float (param)
 295   ((minimum
 296     :allocation :alien
 297     :reader param-double-float-minimum
 298     :type double-float)
 299    (maximum
 300     :allocation :alien
 301     :reader param-double-float-maximum
 302     :type double-float)
 303    (default-value
 304     :allocation :alien
 305     :reader param-double-float-default-value
 306     :type double-float)
 307    (epsilon
 308     :allocation :alien
 309     :reader param-double-float-epsilon
 310     :type double-float))
 311   (:metaclass param-spec-class)
 312   (:alien-name "GParamDouble"))
 313
 314 (defclass param-string (param)
 315   ((default-value
 316     :allocation :alien
 317     :reader param-string-default-value
 318     :type string))
 319   (:metaclass param-spec-class))
 320
 321 (defclass param-param (param)
 322   ()
 323   (:metaclass param-spec-class))
 324
 325 (defclass param-boxed (param)
 326   ()
 327   (:metaclass param-spec-class))
 328
 329 (defclass param-pointer (param)
 330   ()
 331   (:metaclass param-spec-class))
 332
 333 (defclass param-value-array (param)
 334   ((element-spec
 335     :allocation :alien
 336     :reader param-value-array-element-spec
 337     :type param)
 338    (length
 339     :allocation :alien
 340     :reader param-value-array-length
 341     :type unsigned-int))
 342   (:metaclass param-spec-class))
 343
 344 ;; (defclass param-closure (param)
 345 ;;   ()
 346 ;;   (:metaclass param-spec-class))
 347
 348 (defclass param-object (param)
 349   ()
 350   (:metaclass param-spec-class))