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 1.14 2005-01-12 13:31:57 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 (system: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
 100       ((class param-spec-class) (super pcl::standard-class))
 101     t ;(subtypep (class-name super) 'param)
 102 ))
 103
 104
 105 (defbinding %param-spec-ref () pointer
 106   (location pointer))
 107
 108 (defbinding %param-spec-unref () nil
 109   (location pointer))
 110
 111 (defmethod reference-foreign ((class param-spec-class) location)
 112   (declare (ignore class))
 113   (%param-spec-ref location))
 114
 115 (defmethod unreference-foreign ((class param-spec-class) location)
 116   (declare (ignore class))
 117   (%param-spec-unref location))
 118
 119
 120
 121 ;; TODO: rename to param-spec
 122 (defclass param (ginstance)
 123   ((name
 124     :allocation :alien
 125     :reader param-name
 126     :type string)
 127    (flags
 128     :allocation :alien
 129     :reader param-flags
 130     :type param-flag-type)
 131    (value-type
 132     :allocation :alien
 133     :reader param-value-type
 134     :type type-number)
 135    (owner-type
 136     :allocation :alien
 137     :reader param-owner-type
 138     :type type-number)
 139    (nickname
 140     :allocation :virtual
 141     :getter "g_param_spec_get_nick"
 142     :reader param-nickname
 143     :type (copy-of string))
 144    (documentation
 145     :allocation :virtual
 146     :getter "g_param_spec_get_blurb"
 147     :reader param-documentation
 148     :type (copy-of string)))
 149   (:metaclass param-spec-class))
 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
 167 (defclass param-unsigned-char (param)
 168   (
 169 ; (minimum
 170 ;     :allocation :alien
 171 ;     :reader param-unsigned-char-minimum
 172 ;     :type unsigned-char)
 173 ;    (maximum
 174 ;     :allocation :alien
 175 ;     :reader param-unsigned-char-maximum
 176 ;     :type unsigned-char)
 177 ;    (default-value
 178 ;     :allocation :alien
 179 ;     :reader param-unsigned-char-default-value
 180 ;     :type unsigned-char)
 181    )
 182   (:metaclass param-spec-class)
 183   (:alien-name "GParamUChar"))
 184
 185 (defclass param-boolean (param)
 186   ((default-value
 187      :allocation :alien
 188      :reader param-boolean-default-value
 189      :type boolean))
 190   (:metaclass param-spec-class))
 191
 192 (defclass param-int (param)
 193   ((minimum
 194     :allocation :alien
 195     :reader param-int-minimum
 196     :type int)
 197    (maximum
 198     :allocation :alien
 199     :reader param-int-maximum
 200     :type int)
 201    (default-value
 202     :allocation :alien
 203     :reader param-int-default-value
 204     :type int))
 205   (:metaclass param-spec-class))
 206
 207 (defclass param-unsigned-int (param)
 208   ((minimum
 209     :allocation :alien
 210     :reader param-unsigned-int-minimum
 211     :type unsigned-int)
 212    (maximum
 213     :allocation :alien
 214     :reader param-unsigned-int-maximum
 215     :type unsigned-int)
 216    (default-value
 217     :allocation :alien
 218     :reader param-unsigned-int-default-value
 219     :type unsigned-int))
 220   (:metaclass param-spec-class)
 221   (:alien-name "GParamUInt"))
 222
 223 (defclass param-long (param)
 224   ((minimum
 225     :allocation :alien
 226     :reader param-long-minimum
 227     :type long)
 228    (maximum
 229     :allocation :alien
 230     :reader param-long-maximum
 231     :type long)
 232    (default-value
 233     :allocation :alien
 234     :reader param-long-default-value
 235     :type long))
 236   (:metaclass param-spec-class))
 237
 238 (defclass param-unsigned-long (param)
 239   ((minimum
 240     :allocation :alien
 241     :reader param-unsigned-long-minimum
 242     :type unsigned-long)
 243    (maximum
 244     :allocation :alien
 245     :reader param-unsigned-long-maximum
 246     :type unsigned-long)
 247    (default-value
 248     :allocation :alien
 249     :reader param-unsigned-long-default-value
 250     :type unsigned-long))
 251   (:metaclass param-spec-class)
 252   (:alien-name "GParamULong"))
 253
 254 (defclass param-unichar (param)
 255   ()
 256   (:metaclass param-spec-class))
 257
 258 (defclass param-enum (param)
 259   ((class
 260     :allocation :alien
 261     :reader param-enum-class
 262     :type pointer)
 263    (default-value
 264     :allocation :alien
 265     :reader param-enum-default-value
 266     :type long))
 267   (:metaclass param-spec-class))
 268
 269 (defclass param-flags (param)
 270   ((class
 271     :allocation :alien
 272     :reader param-flags-class
 273     :type pointer)
 274    (default-value
 275     :allocation :alien
 276     :reader param-flags-default-value
 277     :type long))
 278   (:metaclass param-spec-class))
 279
 280 (defclass param-single-float (param)
 281   ((minimum
 282     :allocation :alien
 283     :reader param-single-float-minimum
 284     :type single-float)
 285    (maximum
 286     :allocation :alien
 287     :reader param-single-float-maximum
 288     :type single-float)
 289    (default-value
 290     :allocation :alien
 291     :reader param-single-float-default-value
 292     :type single-float)
 293    (epsilon
 294     :allocation :alien
 295     :reader param-single-float-epsilon
 296     :type single-float))
 297   (:metaclass param-spec-class)
 298   (:alien-name "GParamFloat"))
 299
 300 (defclass param-double-float (param)
 301   ((minimum
 302     :allocation :alien
 303     :reader param-double-float-minimum
 304     :type double-float)
 305    (maximum
 306     :allocation :alien
 307     :reader param-double-float-maximum
 308     :type double-float)
 309    (default-value
 310     :allocation :alien
 311     :reader param-double-float-default-value
 312     :type double-float)
 313    (epsilon
 314     :allocation :alien
 315     :reader param-double-float-epsilon
 316     :type double-float))
 317   (:metaclass param-spec-class)
 318   (:alien-name "GParamDouble"))
 319
 320 (defclass param-string (param)
 321   ((default-value
 322     :allocation :alien
 323     :reader param-string-default-value
 324     :type string))
 325   (:metaclass param-spec-class))
 326
 327 (defclass param-param (param)
 328   ()
 329   (:metaclass param-spec-class))
 330
 331 (defclass param-boxed (param)
 332   ()
 333   (:metaclass param-spec-class))
 334
 335 (defclass param-pointer (param)
 336   ()
 337   (:metaclass param-spec-class))
 338
 339 (defclass param-value-array (param)
 340   ((element-spec
 341     :allocation :alien
 342     :reader param-value-array-element-spec
 343     :type param)
 344    (length
 345     :allocation :alien
 346     :reader param-value-array-length
 347     :type unsigned-int))
 348   (:metaclass param-spec-class))
 349
 350 ;; (defclass param-closure (param)
 351 ;;   ()
 352 ;;   (:metaclass param-spec-class))
 353
 354 (defclass param-object (param)
 355   ()
 356   (:metaclass param-spec-class))