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 1.15 2005-02-03 23:09:04 espen Exp $
  19
  20 (in-package "GLIB")
  21
  22 (deftype gvalue () 'pointer)
  23
  24 (register-type 'gvalue "GValue")
  25
  26 (eval-when (:compile-toplevel :load-toplevel :execute)
  27   (defbinding (size-of-gvalue "size_of_gvalue") () unsigned-int))
  28
  29 ;(defconstant +gvalue-size+ (+ (size-of 'type-number) (* 2 (size-of 'double-float))))
  30 (defconstant +gvalue-size+ #.(size-of-gvalue))
  31
  32 (defconstant +gvalue-value-offset+ (size-of 'type-number))
  33
  34 (defbinding (%gvalue-init "g_value_init") () nil
  35   (value gvalue)
  36   (type type-number))
  37
  38 (defbinding (gvalue-unset "g_value_unset") () nil
  39   (value gvalue))
  40
  41 (defun gvalue-init (gvalue type &optional (value nil value-p))
  42   (%gvalue-init gvalue (find-type-number type))
  43   (when value-p
  44     (funcall (writer-function type) value gvalue +gvalue-value-offset+)))
  45
  46 (defun gvalue-new (&optional type (value nil value-p))
  47   (let ((gvalue (allocate-memory +gvalue-size+)))
  48     (cond
  49      (value-p (gvalue-init gvalue type value))
  50      (type (gvalue-init gvalue type)))
  51     gvalue))
  52
  53 (defun gvalue-free (gvalue &optional (unset-p t))
  54   (unless (null-pointer-p gvalue)
  55     (when unset-p
  56       (gvalue-unset gvalue))
  57     (deallocate-memory gvalue)))
  58
  59 (defun gvalue-type (gvalue)
  60   (type-from-number (sap-ref-32 gvalue 0)))
  61
  62 (defun gvalue-get (gvalue)
  63   (funcall (reader-function (gvalue-type gvalue))
  64    gvalue +gvalue-value-offset+))
  65
  66 (defun gvalue-set (gvalue value)
  67   (funcall (writer-function (gvalue-type gvalue))
  68    value gvalue +gvalue-value-offset+)
  69   value)
  70
  71 (defbinding (gvalue-p "g_type_check_value") () boolean
  72   (location pointer))
  73
  74 (defmacro with-gvalue ((gvalue &optional type (value nil value-p)) &body body)
  75   `(let ((,gvalue ,(cond
  76                     ((and type value-p) `(gvalue-new ,type ,value))
  77                     (type `(gvalue-new ,type))
  78                     (`(gvalue-new)))))
  79     (unwind-protect
  80          (progn
  81            ,@body
  82            ,(unless value-p `(gvalue-get ,gvalue)))
  83       (gvalue-free ,gvalue))))
  84
  85
  86 (deftype param-flag-type ()
  87   '(flags
  88     (:readable 1)
  89     (:writable 2)
  90     (:construct 4)
  91     (:construct-only 8)
  92     (:lax-validation 16)
  93     (:private 32)))
  94
  95 (eval-when (:compile-toplevel :load-toplevel :execute)
  96   (defclass param-spec-class (ginstance-class)
  97     ())
  98
  99   (defmethod validate-superclass  ((class param-spec-class) (super standard-class))
 100     t ;(subtypep (class-name super) 'param)
 101 ))
 102
 103
 104 (defbinding %param-spec-ref () pointer
 105   (location pointer))
 106
 107 (defbinding %param-spec-unref () nil
 108   (location pointer))
 109
 110 (defmethod reference-foreign ((class param-spec-class) location)
 111   (declare (ignore class))
 112   (%param-spec-ref location))
 113
 114 (defmethod unreference-foreign ((class param-spec-class) location)
 115   (declare (ignore class))
 116   (%param-spec-unref location))
 117
 118
 119
 120 ;; TODO: rename to param-spec
 121 (defclass param (ginstance)
 122   ((name
 123     :allocation :alien
 124     :reader param-name
 125     :type string)
 126    (flags
 127     :allocation :alien
 128     :reader param-flags
 129     :type param-flag-type)
 130    (value-type
 131     :allocation :alien
 132     :reader param-value-type
 133     :type type-number)
 134    (owner-type
 135     :allocation :alien
 136     :reader param-owner-type
 137     :type type-number)
 138    (nickname
 139     :allocation :virtual
 140     :getter "g_param_spec_get_nick"
 141     :reader param-nickname
 142     :type (copy-of string))
 143    (documentation
 144     :allocation :virtual
 145     :getter "g_param_spec_get_blurb"
 146     :reader param-documentation
 147     :type (copy-of string)))
 148   (:metaclass param-spec-class))
 149
 150
 151 (defclass param-char (param)
 152   ((minimum
 153     :allocation :alien
 154     :reader param-char-minimum
 155     :type char)
 156    (maximum
 157     :allocation :alien
 158     :reader param-char-maximum
 159     :type char)
 160    (default-value
 161     :allocation :alien
 162     :reader param-char-default-value
 163     :type char))
 164   (:metaclass param-spec-class))
 165
 166 (defclass param-unsigned-char (param)
 167   (
 168 ; (minimum
 169 ;     :allocation :alien
 170 ;     :reader param-unsigned-char-minimum
 171 ;     :type unsigned-char)
 172 ;    (maximum
 173 ;     :allocation :alien
 174 ;     :reader param-unsigned-char-maximum
 175 ;     :type unsigned-char)
 176 ;    (default-value
 177 ;     :allocation :alien
 178 ;     :reader param-unsigned-char-default-value
 179 ;     :type unsigned-char)
 180    )
 181   (:metaclass param-spec-class)
 182   (:alien-name "GParamUChar"))
 183
 184 (defclass param-boolean (param)
 185   ((default-value
 186      :allocation :alien
 187      :reader param-boolean-default-value
 188      :type boolean))
 189   (:metaclass param-spec-class))
 190
 191 (defclass param-int (param)
 192   ((minimum
 193     :allocation :alien
 194     :reader param-int-minimum
 195     :type int)
 196    (maximum
 197     :allocation :alien
 198     :reader param-int-maximum
 199     :type int)
 200    (default-value
 201     :allocation :alien
 202     :reader param-int-default-value
 203     :type int))
 204   (:metaclass param-spec-class))
 205
 206 (defclass param-unsigned-int (param)
 207   ((minimum
 208     :allocation :alien
 209     :reader param-unsigned-int-minimum
 210     :type unsigned-int)
 211    (maximum
 212     :allocation :alien
 213     :reader param-unsigned-int-maximum
 214     :type unsigned-int)
 215    (default-value
 216     :allocation :alien
 217     :reader param-unsigned-int-default-value
 218     :type unsigned-int))
 219   (:metaclass param-spec-class)
 220   (:alien-name "GParamUInt"))
 221
 222 (defclass param-long (param)
 223   ((minimum
 224     :allocation :alien
 225     :reader param-long-minimum
 226     :type long)
 227    (maximum
 228     :allocation :alien
 229     :reader param-long-maximum
 230     :type long)
 231    (default-value
 232     :allocation :alien
 233     :reader param-long-default-value
 234     :type long))
 235   (:metaclass param-spec-class))
 236
 237 (defclass param-unsigned-long (param)
 238   ((minimum
 239     :allocation :alien
 240     :reader param-unsigned-long-minimum
 241     :type unsigned-long)
 242    (maximum
 243     :allocation :alien
 244     :reader param-unsigned-long-maximum
 245     :type unsigned-long)
 246    (default-value
 247     :allocation :alien
 248     :reader param-unsigned-long-default-value
 249     :type unsigned-long))
 250   (:metaclass param-spec-class)
 251   (:alien-name "GParamULong"))
 252
 253 (defclass param-unichar (param)
 254   ()
 255   (:metaclass param-spec-class))
 256
 257 (defclass param-enum (param)
 258   ((class
 259     :allocation :alien
 260     :reader param-enum-class
 261     :type pointer)
 262    (default-value
 263     :allocation :alien
 264     :reader param-enum-default-value
 265     :type long))
 266   (:metaclass param-spec-class))
 267
 268 (defclass param-flags (param)
 269   ((class
 270     :allocation :alien
 271     :reader param-flags-class
 272     :type pointer)
 273    (default-value
 274     :allocation :alien
 275     :reader param-flags-default-value
 276     :type long))
 277   (:metaclass param-spec-class))
 278
 279 (defclass param-single-float (param)
 280   ((minimum
 281     :allocation :alien
 282     :reader param-single-float-minimum
 283     :type single-float)
 284    (maximum
 285     :allocation :alien
 286     :reader param-single-float-maximum
 287     :type single-float)
 288    (default-value
 289     :allocation :alien
 290     :reader param-single-float-default-value
 291     :type single-float)
 292    (epsilon
 293     :allocation :alien
 294     :reader param-single-float-epsilon
 295     :type single-float))
 296   (:metaclass param-spec-class)
 297   (:alien-name "GParamFloat"))
 298
 299 (defclass param-double-float (param)
 300   ((minimum
 301     :allocation :alien
 302     :reader param-double-float-minimum
 303     :type double-float)
 304    (maximum
 305     :allocation :alien
 306     :reader param-double-float-maximum
 307     :type double-float)
 308    (default-value
 309     :allocation :alien
 310     :reader param-double-float-default-value
 311     :type double-float)
 312    (epsilon
 313     :allocation :alien
 314     :reader param-double-float-epsilon
 315     :type double-float))
 316   (:metaclass param-spec-class)
 317   (:alien-name "GParamDouble"))
 318
 319 (defclass param-string (param)
 320   ((default-value
 321     :allocation :alien
 322     :reader param-string-default-value
 323     :type string))
 324   (:metaclass param-spec-class))
 325
 326 (defclass param-param (param)
 327   ()
 328   (:metaclass param-spec-class))
 329
 330 (defclass param-boxed (param)
 331   ()
 332   (:metaclass param-spec-class))
 333
 334 (defclass param-pointer (param)
 335   ()
 336   (:metaclass param-spec-class))
 337
 338 (defclass param-value-array (param)
 339   ((element-spec
 340     :allocation :alien
 341     :reader param-value-array-element-spec
 342     :type param)
 343    (length
 344     :allocation :alien
 345     :reader param-value-array-length
 346     :type unsigned-int))
 347   (:metaclass param-spec-class))
 348
 349 ;; (defclass param-closure (param)
 350 ;;   ()
 351 ;;   (:metaclass param-spec-class))
 352
 353 (defclass param-object (param)
 354   ()
 355   (:metaclass param-spec-class))