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

   1 ;; Common Lisp bindings for GTK+ v2.0
   2 ;; Copyright (C) 2000-2005 Espen S. Johnsen <espen@users.sf.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: gparam.lisp,v 1.16 2005-03-06 17:26:23 espen Exp $
  19
  20 (in-package "GLIB")
  21
  22 (deftype gvalue () 'pointer)
  23
  24 (register-type 'gvalue '|g_value_get_type|)
  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   (:gtype "GParam"))
 150
 151
 152 (defclass param-char (param)
 153   ((minimum
 154     :allocation :alien
 155     :reader param-char-minimum
 156     :type char)
 157    (maximum
 158     :allocation :alien
 159     :reader param-char-maximum
 160     :type char)
 161    (default-value
 162     :allocation :alien
 163     :reader param-char-default-value
 164     :type char))
 165   (:metaclass param-spec-class)
 166   (:gtype "GParamChar"))
 167
 168 (defclass param-unsigned-char (param)
 169   (
 170 ; (minimum
 171 ;     :allocation :alien
 172 ;     :reader param-unsigned-char-minimum
 173 ;     :type unsigned-char)
 174 ;    (maximum
 175 ;     :allocation :alien
 176 ;     :reader param-unsigned-char-maximum
 177 ;     :type unsigned-char)
 178 ;    (default-value
 179 ;     :allocation :alien
 180 ;     :reader param-unsigned-char-default-value
 181 ;     :type unsigned-char)
 182    )
 183   (:metaclass param-spec-class)
 184   (:gtype "GParamUChar"))
 185
 186 (defclass param-boolean (param)
 187   ((default-value
 188      :allocation :alien
 189      :reader param-boolean-default-value
 190      :type boolean))
 191   (:metaclass param-spec-class)
 192   (:gtype "GParamBoolean"))
 193
 194 (defclass param-int (param)
 195   ((minimum
 196     :allocation :alien
 197     :reader param-int-minimum
 198     :type int)
 199    (maximum
 200     :allocation :alien
 201     :reader param-int-maximum
 202     :type int)
 203    (default-value
 204     :allocation :alien
 205     :reader param-int-default-value
 206     :type int))
 207   (:metaclass param-spec-class)
 208   (:gtype "GParamInt"))
 209
 210 (defclass param-unsigned-int (param)
 211   ((minimum
 212     :allocation :alien
 213     :reader param-unsigned-int-minimum
 214     :type unsigned-int)
 215    (maximum
 216     :allocation :alien
 217     :reader param-unsigned-int-maximum
 218     :type unsigned-int)
 219    (default-value
 220     :allocation :alien
 221     :reader param-unsigned-int-default-value
 222     :type unsigned-int))
 223   (:metaclass param-spec-class)
 224   (:gtype "GParamUInt"))
 225
 226 (defclass param-long (param)
 227   ((minimum
 228     :allocation :alien
 229     :reader param-long-minimum
 230     :type long)
 231    (maximum
 232     :allocation :alien
 233     :reader param-long-maximum
 234     :type long)
 235    (default-value
 236     :allocation :alien
 237     :reader param-long-default-value
 238     :type long))
 239   (:metaclass param-spec-class)
 240   (:gtype "GParam"))
 241
 242 (defclass param-unsigned-long (param)
 243   ((minimum
 244     :allocation :alien
 245     :reader param-unsigned-long-minimum
 246     :type unsigned-long)
 247    (maximum
 248     :allocation :alien
 249     :reader param-unsigned-long-maximum
 250     :type unsigned-long)
 251    (default-value
 252     :allocation :alien
 253     :reader param-unsigned-long-default-value
 254     :type unsigned-long))
 255   (:metaclass param-spec-class)
 256   (:gtype "GParamULong"))
 257
 258 (defclass param-unichar (param)
 259   ()
 260   (:metaclass param-spec-class)
 261   (:gtype "GParamUnichar"))
 262
 263 (defclass param-enum (param)
 264   ((class
 265     :allocation :alien
 266     :reader param-enum-class
 267     :type pointer)
 268    (default-value
 269     :allocation :alien
 270     :reader param-enum-default-value
 271     :type long))
 272   (:metaclass param-spec-class)
 273   (:gtype "GParamEnum"))
 274
 275 (defclass param-flags (param)
 276   ((class
 277     :allocation :alien
 278     :reader param-flags-class
 279     :type pointer)
 280    (default-value
 281     :allocation :alien
 282     :reader param-flags-default-value
 283     :type long))
 284   (:metaclass param-spec-class)
 285   (:gtype "GParamFlags"))
 286
 287 (defclass param-single-float (param)
 288   ((minimum
 289     :allocation :alien
 290     :reader param-single-float-minimum
 291     :type single-float)
 292    (maximum
 293     :allocation :alien
 294     :reader param-single-float-maximum
 295     :type single-float)
 296    (default-value
 297     :allocation :alien
 298     :reader param-single-float-default-value
 299     :type single-float)
 300    (epsilon
 301     :allocation :alien
 302     :reader param-single-float-epsilon
 303     :type single-float))
 304   (:metaclass param-spec-class)
 305   (:gtype "GParamFloat"))
 306
 307 (defclass param-double-float (param)
 308   ((minimum
 309     :allocation :alien
 310     :reader param-double-float-minimum
 311     :type double-float)
 312    (maximum
 313     :allocation :alien
 314     :reader param-double-float-maximum
 315     :type double-float)
 316    (default-value
 317     :allocation :alien
 318     :reader param-double-float-default-value
 319     :type double-float)
 320    (epsilon
 321     :allocation :alien
 322     :reader param-double-float-epsilon
 323     :type double-float))
 324   (:metaclass param-spec-class)
 325   (:gtype "GParamDouble"))
 326
 327 (defclass param-string (param)
 328   ((default-value
 329     :allocation :alien
 330     :reader param-string-default-value
 331     :type string))
 332   (:metaclass param-spec-class)
 333   (:gtype "GParamString"))
 334
 335 (defclass param-param (param)
 336   ()
 337   (:metaclass param-spec-class)
 338   (:gtype "GParamParam"))
 339
 340 (defclass param-boxed (param)
 341   ()
 342   (:metaclass param-spec-class)
 343   (:gtype "GParamBoxed"))
 344
 345 (defclass param-pointer (param)
 346   ()
 347   (:metaclass param-spec-class)
 348   (:gtype "GParamPointer"))
 349
 350 (defclass param-value-array (param)
 351   ((element-spec
 352     :allocation :alien
 353     :reader param-value-array-element-spec
 354     :type param)
 355    (length
 356     :allocation :alien
 357     :reader param-value-array-length
 358     :type unsigned-int))
 359   (:metaclass param-spec-class)
 360   (:gtype "GParamValueArray"))
 361
 362 (defclass param-object (param)
 363   ()
 364   (:metaclass param-spec-class)
 365   (:gtype "GParamObject"))
 366
 367 (defclass param-overrride (param)
 368   ()
 369   (:metaclass param-spec-class)
 370   (:gtype "GParamOverride"))