gobject/gparamspecs.c

   1 /* GObject - GLib Type, Object, Parameter and Signal Library
   2  * Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc.
   3  * Copyright (C) 2010 Christian Persch
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 /*
  20  * MT safe
  21  */
  22
  23 #include "config.h"
  24
  25 #include <string.h>
  26
  27 #define GLIB_DISABLE_DEPRECATION_WARNINGS
  28
  29 #include "gparamspecs.h"
  30 #include "gtype-private.h"
  31 #include "gvaluecollector.h"
  32
  33 #include "gvaluearray.h"
  34
  35
  36 /**
  37  * SECTION:param_value_types
  38  * @short_description: Standard Parameter and Value Types
  39  * @see_also: #GParamSpec, #GValue, g_object_class_install_property().
  40  * @title: Parameters and Values
  41  *
  42  * #GValue provides an abstract container structure which can be
  43  * copied, transformed and compared while holding a value of any
  44  * (derived) type, which is registered as a #GType with a
  45  * #GTypeValueTable in its #GTypeInfo structure.  Parameter
  46  * specifications for most value types can be created as #GParamSpec
  47  * derived instances, to implement e.g. #GObject properties which
  48  * operate on #GValue containers.
  49  *
  50  * Parameter names need to start with a letter (a-z or A-Z). Subsequent
  51  * characters can be letters, numbers or a '-'.
  52  * All other characters are replaced by a '-' during construction.
  53  */
  54
  55
  56 #define G_FLOAT_EPSILON         (1e-30)
  57 #define G_DOUBLE_EPSILON        (1e-90)
  58
  59
  60 /* --- param spec functions --- */
  61 static void
  62 param_char_init (GParamSpec *pspec)
  63 {
  64   GParamSpecChar *cspec = G_PARAM_SPEC_CHAR (pspec);
  65
  66   cspec->minimum = 0x7f;
  67   cspec->maximum = 0x80;
  68   cspec->default_value = 0;
  69 }
  70
  71 static void
  72 param_char_set_default (GParamSpec *pspec,
  73                         GValue     *value)
  74 {
  75   value->data[0].v_int = G_PARAM_SPEC_CHAR (pspec)->default_value;
  76 }
  77
  78 static gboolean
  79 param_char_validate (GParamSpec *pspec,
  80                      GValue     *value)
  81 {
  82   GParamSpecChar *cspec = G_PARAM_SPEC_CHAR (pspec);
  83   gint oval = value->data[0].v_int;
  84
  85   value->data[0].v_int = CLAMP (value->data[0].v_int, cspec->minimum, cspec->maximum);
  86
  87   return value->data[0].v_int != oval;
  88 }
  89
  90 static void
  91 param_uchar_init (GParamSpec *pspec)
  92 {
  93   GParamSpecUChar *uspec = G_PARAM_SPEC_UCHAR (pspec);
  94
  95   uspec->minimum = 0;
  96   uspec->maximum = 0xff;
  97   uspec->default_value = 0;
  98 }
  99
 100 static void
 101 param_uchar_set_default (GParamSpec *pspec,
 102                          GValue     *value)
 103 {
 104   value->data[0].v_uint = G_PARAM_SPEC_UCHAR (pspec)->default_value;
 105 }
 106
 107 static gboolean
 108 param_uchar_validate (GParamSpec *pspec,
 109                       GValue     *value)
 110 {
 111   GParamSpecUChar *uspec = G_PARAM_SPEC_UCHAR (pspec);
 112   guint oval = value->data[0].v_uint;
 113
 114   value->data[0].v_uint = CLAMP (value->data[0].v_uint, uspec->minimum, uspec->maximum);
 115
 116   return value->data[0].v_uint != oval;
 117 }
 118
 119 static void
 120 param_boolean_set_default (GParamSpec *pspec,
 121                            GValue     *value)
 122 {
 123   value->data[0].v_int = G_PARAM_SPEC_BOOLEAN (pspec)->default_value;
 124 }
 125
 126 static gboolean
 127 param_boolean_validate (GParamSpec *pspec,
 128                         GValue     *value)
 129 {
 130   gint oval = value->data[0].v_int;
 131
 132   value->data[0].v_int = value->data[0].v_int != FALSE;
 133
 134   return value->data[0].v_int != oval;
 135 }
 136
 137 static void
 138 param_int_init (GParamSpec *pspec)
 139 {
 140   GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
 141
 142   ispec->minimum = 0x7fffffff;
 143   ispec->maximum = 0x80000000;
 144   ispec->default_value = 0;
 145 }
 146
 147 static void
 148 param_int_set_default (GParamSpec *pspec,
 149                        GValue     *value)
 150 {
 151   value->data[0].v_int = G_PARAM_SPEC_INT (pspec)->default_value;
 152 }
 153
 154 static gboolean
 155 param_int_validate (GParamSpec *pspec,
 156                     GValue     *value)
 157 {
 158   GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
 159   gint oval = value->data[0].v_int;
 160
 161   value->data[0].v_int = CLAMP (value->data[0].v_int, ispec->minimum, ispec->maximum);
 162
 163   return value->data[0].v_int != oval;
 164 }
 165
 166 static gint
 167 param_int_values_cmp (GParamSpec   *pspec,
 168                       const GValue *value1,
 169                       const GValue *value2)
 170 {
 171   if (value1->data[0].v_int < value2->data[0].v_int)
 172     return -1;
 173   else
 174     return value1->data[0].v_int > value2->data[0].v_int;
 175 }
 176
 177 static void
 178 param_uint_init (GParamSpec *pspec)
 179 {
 180   GParamSpecUInt *uspec = G_PARAM_SPEC_UINT (pspec);
 181
 182   uspec->minimum = 0;
 183   uspec->maximum = 0xffffffff;
 184   uspec->default_value = 0;
 185 }
 186
 187 static void
 188 param_uint_set_default (GParamSpec *pspec,
 189                         GValue     *value)
 190 {
 191   value->data[0].v_uint = G_PARAM_SPEC_UINT (pspec)->default_value;
 192 }
 193
 194 static gboolean
 195 param_uint_validate (GParamSpec *pspec,
 196                      GValue     *value)
 197 {
 198   GParamSpecUInt *uspec = G_PARAM_SPEC_UINT (pspec);
 199   guint oval = value->data[0].v_uint;
 200
 201   value->data[0].v_uint = CLAMP (value->data[0].v_uint, uspec->minimum, uspec->maximum);
 202
 203   return value->data[0].v_uint != oval;
 204 }
 205
 206 static gint
 207 param_uint_values_cmp (GParamSpec   *pspec,
 208                        const GValue *value1,
 209                        const GValue *value2)
 210 {
 211   if (value1->data[0].v_uint < value2->data[0].v_uint)
 212     return -1;
 213   else
 214     return value1->data[0].v_uint > value2->data[0].v_uint;
 215 }
 216
 217 static void
 218 param_long_init (GParamSpec *pspec)
 219 {
 220   GParamSpecLong *lspec = G_PARAM_SPEC_LONG (pspec);
 221
 222 #if SIZEOF_LONG == 4
 223   lspec->minimum = 0x7fffffff;
 224   lspec->maximum = 0x80000000;
 225 #else /* SIZEOF_LONG != 4 (8) */
 226   lspec->minimum = 0x7fffffffffffffff;
 227   lspec->maximum = 0x8000000000000000;
 228 #endif
 229   lspec->default_value = 0;
 230 }
 231
 232 static void
 233 param_long_set_default (GParamSpec *pspec,
 234                         GValue     *value)
 235 {
 236   value->data[0].v_long = G_PARAM_SPEC_LONG (pspec)->default_value;
 237 }
 238
 239 static gboolean
 240 param_long_validate (GParamSpec *pspec,
 241                      GValue     *value)
 242 {
 243   GParamSpecLong *lspec = G_PARAM_SPEC_LONG (pspec);
 244   glong oval = value->data[0].v_long;
 245
 246   value->data[0].v_long = CLAMP (value->data[0].v_long, lspec->minimum, lspec->maximum);
 247
 248   return value->data[0].v_long != oval;
 249 }
 250
 251 static gint
 252 param_long_values_cmp (GParamSpec   *pspec,
 253                        const GValue *value1,
 254                        const GValue *value2)
 255 {
 256   if (value1->data[0].v_long < value2->data[0].v_long)
 257     return -1;
 258   else
 259     return value1->data[0].v_long > value2->data[0].v_long;
 260 }
 261
 262 static void
 263 param_ulong_init (GParamSpec *pspec)
 264 {
 265   GParamSpecULong *uspec = G_PARAM_SPEC_ULONG (pspec);
 266
 267   uspec->minimum = 0;
 268 #if SIZEOF_LONG == 4
 269   uspec->maximum = 0xffffffff;
 270 #else /* SIZEOF_LONG != 4 (8) */
 271   uspec->maximum = 0xffffffffffffffff;
 272 #endif
 273   uspec->default_value = 0;
 274 }
 275
 276 static void
 277 param_ulong_set_default (GParamSpec *pspec,
 278                          GValue     *value)
 279 {
 280   value->data[0].v_ulong = G_PARAM_SPEC_ULONG (pspec)->default_value;
 281 }
 282
 283 static gboolean
 284 param_ulong_validate (GParamSpec *pspec,
 285                       GValue     *value)
 286 {
 287   GParamSpecULong *uspec = G_PARAM_SPEC_ULONG (pspec);
 288   gulong oval = value->data[0].v_ulong;
 289
 290   value->data[0].v_ulong = CLAMP (value->data[0].v_ulong, uspec->minimum, uspec->maximum);
 291
 292   return value->data[0].v_ulong != oval;
 293 }
 294
 295 static gint
 296 param_ulong_values_cmp (GParamSpec   *pspec,
 297                         const GValue *value1,
 298                         const GValue *value2)
 299 {
 300   if (value1->data[0].v_ulong < value2->data[0].v_ulong)
 301     return -1;
 302   else
 303     return value1->data[0].v_ulong > value2->data[0].v_ulong;
 304 }
 305
 306 static void
 307 param_int64_init (GParamSpec *pspec)
 308 {
 309   GParamSpecInt64 *lspec = G_PARAM_SPEC_INT64 (pspec);
 310
 311   lspec->minimum = G_MININT64;
 312   lspec->maximum = G_MAXINT64;
 313   lspec->default_value = 0;
 314 }
 315
 316 static void
 317 param_int64_set_default (GParamSpec *pspec,
 318                         GValue     *value)
 319 {
 320   value->data[0].v_int64 = G_PARAM_SPEC_INT64 (pspec)->default_value;
 321 }
 322
 323 static gboolean
 324 param_int64_validate (GParamSpec *pspec,
 325                      GValue     *value)
 326 {
 327   GParamSpecInt64 *lspec = G_PARAM_SPEC_INT64 (pspec);
 328   gint64 oval = value->data[0].v_int64;
 329
 330   value->data[0].v_int64 = CLAMP (value->data[0].v_int64, lspec->minimum, lspec->maximum);
 331
 332   return value->data[0].v_int64 != oval;
 333 }
 334
 335 static gint
 336 param_int64_values_cmp (GParamSpec   *pspec,
 337                        const GValue *value1,
 338                        const GValue *value2)
 339 {
 340   if (value1->data[0].v_int64 < value2->data[0].v_int64)
 341     return -1;
 342   else
 343     return value1->data[0].v_int64 > value2->data[0].v_int64;
 344 }
 345
 346 static void
 347 param_uint64_init (GParamSpec *pspec)
 348 {
 349   GParamSpecUInt64 *uspec = G_PARAM_SPEC_UINT64 (pspec);
 350
 351   uspec->minimum = 0;
 352   uspec->maximum = G_MAXUINT64;
 353   uspec->default_value = 0;
 354 }
 355
 356 static void
 357 param_uint64_set_default (GParamSpec *pspec,
 358                          GValue     *value)
 359 {
 360   value->data[0].v_uint64 = G_PARAM_SPEC_UINT64 (pspec)->default_value;
 361 }
 362
 363 static gboolean
 364 param_uint64_validate (GParamSpec *pspec,
 365                       GValue     *value)
 366 {
 367   GParamSpecUInt64 *uspec = G_PARAM_SPEC_UINT64 (pspec);
 368   guint64 oval = value->data[0].v_uint64;
 369
 370   value->data[0].v_uint64 = CLAMP (value->data[0].v_uint64, uspec->minimum, uspec->maximum);
 371
 372   return value->data[0].v_uint64 != oval;
 373 }
 374
 375 static gint
 376 param_uint64_values_cmp (GParamSpec   *pspec,
 377                         const GValue *value1,
 378                         const GValue *value2)
 379 {
 380   if (value1->data[0].v_uint64 < value2->data[0].v_uint64)
 381     return -1;
 382   else
 383     return value1->data[0].v_uint64 > value2->data[0].v_uint64;
 384 }
 385
 386 static void
 387 param_unichar_init (GParamSpec *pspec)
 388 {
 389   GParamSpecUnichar *uspec = G_PARAM_SPEC_UNICHAR (pspec);
 390
 391   uspec->default_value = 0;
 392 }
 393
 394 static void
 395 param_unichar_set_default (GParamSpec *pspec,
 396                          GValue     *value)
 397 {
 398   value->data[0].v_uint = G_PARAM_SPEC_UNICHAR (pspec)->default_value;
 399 }
 400
 401 static gboolean
 402 param_unichar_validate (GParamSpec *pspec,
 403                         GValue     *value)
 404 {
 405   gunichar oval = value->data[0].v_uint;
 406   gboolean changed = FALSE;
 407
 408   if (!g_unichar_validate (oval))
 409     {
 410       value->data[0].v_uint = 0;
 411       changed = TRUE;
 412     }
 413
 414   return changed;
 415 }
 416
 417 static gint
 418 param_unichar_values_cmp (GParamSpec   *pspec,
 419                         const GValue *value1,
 420                         const GValue *value2)
 421 {
 422   if (value1->data[0].v_uint < value2->data[0].v_uint)
 423     return -1;
 424   else
 425     return value1->data[0].v_uint > value2->data[0].v_uint;
 426 }
 427
 428 static void
 429 param_enum_init (GParamSpec *pspec)
 430 {
 431   GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
 432
 433   espec->enum_class = NULL;
 434   espec->default_value = 0;
 435 }
 436
 437 static void
 438 param_enum_finalize (GParamSpec *pspec)
 439 {
 440   GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
 441   GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_ENUM));
 442
 443   if (espec->enum_class)
 444     {
 445       g_type_class_unref (espec->enum_class);
 446       espec->enum_class = NULL;
 447     }
 448
 449   parent_class->finalize (pspec);
 450 }
 451
 452 static void
 453 param_enum_set_default (GParamSpec *pspec,
 454                         GValue     *value)
 455 {
 456   value->data[0].v_long = G_PARAM_SPEC_ENUM (pspec)->default_value;
 457 }
 458
 459 static gboolean
 460 param_enum_validate (GParamSpec *pspec,
 461                      GValue     *value)
 462 {
 463   GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
 464   glong oval = value->data[0].v_long;
 465
 466   if (!espec->enum_class ||
 467       !g_enum_get_value (espec->enum_class, value->data[0].v_long))
 468     value->data[0].v_long = espec->default_value;
 469
 470   return value->data[0].v_long != oval;
 471 }
 472
 473 static void
 474 param_flags_init (GParamSpec *pspec)
 475 {
 476   GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
 477
 478   fspec->flags_class = NULL;
 479   fspec->default_value = 0;
 480 }
 481
 482 static void
 483 param_flags_finalize (GParamSpec *pspec)
 484 {
 485   GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
 486   GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_FLAGS));
 487
 488   if (fspec->flags_class)
 489     {
 490       g_type_class_unref (fspec->flags_class);
 491       fspec->flags_class = NULL;
 492     }
 493
 494   parent_class->finalize (pspec);
 495 }
 496
 497 static void
 498 param_flags_set_default (GParamSpec *pspec,
 499                          GValue     *value)
 500 {
 501   value->data[0].v_ulong = G_PARAM_SPEC_FLAGS (pspec)->default_value;
 502 }
 503
 504 static gboolean
 505 param_flags_validate (GParamSpec *pspec,
 506                       GValue     *value)
 507 {
 508   GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
 509   gulong oval = value->data[0].v_ulong;
 510
 511   if (fspec->flags_class)
 512     value->data[0].v_ulong &= fspec->flags_class->mask;
 513   else
 514     value->data[0].v_ulong = fspec->default_value;
 515
 516   return value->data[0].v_ulong != oval;
 517 }
 518
 519 static void
 520 param_float_init (GParamSpec *pspec)
 521 {
 522   GParamSpecFloat *fspec = G_PARAM_SPEC_FLOAT (pspec);
 523
 524   fspec->minimum = -G_MAXFLOAT;
 525   fspec->maximum = G_MAXFLOAT;
 526   fspec->default_value = 0;
 527   fspec->epsilon = G_FLOAT_EPSILON;
 528 }
 529
 530 static void
 531 param_float_set_default (GParamSpec *pspec,
 532                          GValue     *value)
 533 {
 534   value->data[0].v_float = G_PARAM_SPEC_FLOAT (pspec)->default_value;
 535 }
 536
 537 static gboolean
 538 param_float_validate (GParamSpec *pspec,
 539                       GValue     *value)
 540 {
 541   GParamSpecFloat *fspec = G_PARAM_SPEC_FLOAT (pspec);
 542   gfloat oval = value->data[0].v_float;
 543
 544   value->data[0].v_float = CLAMP (value->data[0].v_float, fspec->minimum, fspec->maximum);
 545
 546   return value->data[0].v_float != oval;
 547 }
 548
 549 static gint
 550 param_float_values_cmp (GParamSpec   *pspec,
 551                         const GValue *value1,
 552                         const GValue *value2)
 553 {
 554   gfloat epsilon = G_PARAM_SPEC_FLOAT (pspec)->epsilon;
 555
 556   if (value1->data[0].v_float < value2->data[0].v_float)
 557     return - (value2->data[0].v_float - value1->data[0].v_float > epsilon);
 558   else
 559     return value1->data[0].v_float - value2->data[0].v_float > epsilon;
 560 }
 561
 562 static void
 563 param_double_init (GParamSpec *pspec)
 564 {
 565   GParamSpecDouble *dspec = G_PARAM_SPEC_DOUBLE (pspec);
 566
 567   dspec->minimum = -G_MAXDOUBLE;
 568   dspec->maximum = G_MAXDOUBLE;
 569   dspec->default_value = 0;
 570   dspec->epsilon = G_DOUBLE_EPSILON;
 571 }
 572
 573 static void
 574 param_double_set_default (GParamSpec *pspec,
 575                           GValue     *value)
 576 {
 577   value->data[0].v_double = G_PARAM_SPEC_DOUBLE (pspec)->default_value;
 578 }
 579
 580 static gboolean
 581 param_double_validate (GParamSpec *pspec,
 582                        GValue     *value)
 583 {
 584   GParamSpecDouble *dspec = G_PARAM_SPEC_DOUBLE (pspec);
 585   gdouble oval = value->data[0].v_double;
 586
 587   value->data[0].v_double = CLAMP (value->data[0].v_double, dspec->minimum, dspec->maximum);
 588
 589   return value->data[0].v_double != oval;
 590 }
 591
 592 static gint
 593 param_double_values_cmp (GParamSpec   *pspec,
 594                          const GValue *value1,
 595                          const GValue *value2)
 596 {
 597   gdouble epsilon = G_PARAM_SPEC_DOUBLE (pspec)->epsilon;
 598
 599   if (value1->data[0].v_double < value2->data[0].v_double)
 600     return - (value2->data[0].v_double - value1->data[0].v_double > epsilon);
 601   else
 602     return value1->data[0].v_double - value2->data[0].v_double > epsilon;
 603 }
 604
 605 static void
 606 param_string_init (GParamSpec *pspec)
 607 {
 608   GParamSpecString *sspec = G_PARAM_SPEC_STRING (pspec);
 609
 610   sspec->default_value = NULL;
 611   sspec->cset_first = NULL;
 612   sspec->cset_nth = NULL;
 613   sspec->substitutor = '_';
 614   sspec->null_fold_if_empty = FALSE;
 615   sspec->ensure_non_null = FALSE;
 616 }
 617
 618 static void
 619 param_string_finalize (GParamSpec *pspec)
 620 {
 621   GParamSpecString *sspec = G_PARAM_SPEC_STRING (pspec);
 622   GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_STRING));
 623
 624   g_free (sspec->default_value);
 625   g_free (sspec->cset_first);
 626   g_free (sspec->cset_nth);
 627   sspec->default_value = NULL;
 628   sspec->cset_first = NULL;
 629   sspec->cset_nth = NULL;
 630
 631   parent_class->finalize (pspec);
 632 }
 633
 634 static void
 635 param_string_set_default (GParamSpec *pspec,
 636                           GValue     *value)
 637 {
 638   value->data[0].v_pointer = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
 639 }
 640
 641 static gboolean
 642 param_string_validate (GParamSpec *pspec,
 643                        GValue     *value)
 644 {
 645   GParamSpecString *sspec = G_PARAM_SPEC_STRING (pspec);
 646   gchar *string = value->data[0].v_pointer;
 647   guint changed = 0;
 648
 649   if (string && string[0])
 650     {
 651       gchar *s;
 652
 653       if (sspec->cset_first && !strchr (sspec->cset_first, string[0]))
 654         {
 655           if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
 656             {
 657               value->data[0].v_pointer = g_strdup (string);
 658               string = value->data[0].v_pointer;
 659               value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
 660             }
 661           string[0] = sspec->substitutor;
 662           changed++;
 663         }
 664       if (sspec->cset_nth)
 665         for (s = string + 1; *s; s++)
 666           if (!strchr (sspec->cset_nth, *s))
 667             {
 668               if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
 669                 {
 670                   value->data[0].v_pointer = g_strdup (string);
 671                   s = (gchar*) value->data[0].v_pointer + (s - string);
 672                   string = value->data[0].v_pointer;
 673                   value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
 674                 }
 675               *s = sspec->substitutor;
 676               changed++;
 677             }
 678     }
 679   if (sspec->null_fold_if_empty && string && string[0] == 0)
 680     {
 681       if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
 682         g_free (value->data[0].v_pointer);
 683       else
 684         value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
 685       value->data[0].v_pointer = NULL;
 686       changed++;
 687       string = value->data[0].v_pointer;
 688     }
 689   if (sspec->ensure_non_null && !string)
 690     {
 691       value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
 692       value->data[0].v_pointer = g_strdup ("");
 693       changed++;
 694       string = value->data[0].v_pointer;
 695     }
 696
 697   return changed;
 698 }
 699
 700 static gint
 701 param_string_values_cmp (GParamSpec   *pspec,
 702                          const GValue *value1,
 703                          const GValue *value2)
 704 {
 705   if (!value1->data[0].v_pointer)
 706     return value2->data[0].v_pointer != NULL ? -1 : 0;
 707   else if (!value2->data[0].v_pointer)
 708     return value1->data[0].v_pointer != NULL;
 709   else
 710     return strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
 711 }
 712
 713 static void
 714 param_param_init (GParamSpec *pspec)
 715 {
 716   /* GParamSpecParam *spec = G_PARAM_SPEC_PARAM (pspec); */
 717 }
 718
 719 static void
 720 param_param_set_default (GParamSpec *pspec,
 721                          GValue     *value)
 722 {
 723   value->data[0].v_pointer = NULL;
 724 }
 725
 726 static gboolean
 727 param_param_validate (GParamSpec *pspec,
 728                       GValue     *value)
 729 {
 730   /* GParamSpecParam *spec = G_PARAM_SPEC_PARAM (pspec); */
 731   GParamSpec *param = value->data[0].v_pointer;
 732   guint changed = 0;
 733
 734   if (param && !g_value_type_compatible (G_PARAM_SPEC_TYPE (param), G_PARAM_SPEC_VALUE_TYPE (pspec)))
 735     {
 736       g_param_spec_unref (param);
 737       value->data[0].v_pointer = NULL;
 738       changed++;
 739     }
 740
 741   return changed;
 742 }
 743
 744 static void
 745 param_boxed_init (GParamSpec *pspec)
 746 {
 747   /* GParamSpecBoxed *bspec = G_PARAM_SPEC_BOXED (pspec); */
 748 }
 749
 750 static void
 751 param_boxed_set_default (GParamSpec *pspec,
 752                          GValue     *value)
 753 {
 754   value->data[0].v_pointer = NULL;
 755 }
 756
 757 static gboolean
 758 param_boxed_validate (GParamSpec *pspec,
 759                       GValue     *value)
 760 {
 761   /* GParamSpecBoxed *bspec = G_PARAM_SPEC_BOXED (pspec); */
 762   guint changed = 0;
 763
 764   /* can't do a whole lot here since we haven't even G_BOXED_TYPE() */
 765
 766   return changed;
 767 }
 768
 769 static gint
 770 param_boxed_values_cmp (GParamSpec    *pspec,
 771                          const GValue *value1,
 772                          const GValue *value2)
 773 {
 774   guint8 *p1 = value1->data[0].v_pointer;
 775   guint8 *p2 = value2->data[0].v_pointer;
 776
 777   /* not much to compare here, try to at least provide stable lesser/greater result */
 778
 779   return p1 < p2 ? -1 : p1 > p2;
 780 }
 781
 782 static void
 783 param_pointer_init (GParamSpec *pspec)
 784 {
 785   /* GParamSpecPointer *spec = G_PARAM_SPEC_POINTER (pspec); */
 786 }
 787
 788 static void
 789 param_pointer_set_default (GParamSpec *pspec,
 790                            GValue     *value)
 791 {
 792   value->data[0].v_pointer = NULL;
 793 }
 794
 795 static gboolean
 796 param_pointer_validate (GParamSpec *pspec,
 797                         GValue     *value)
 798 {
 799   /* GParamSpecPointer *spec = G_PARAM_SPEC_POINTER (pspec); */
 800   guint changed = 0;
 801
 802   return changed;
 803 }
 804
 805 static gint
 806 param_pointer_values_cmp (GParamSpec   *pspec,
 807                           const GValue *value1,
 808                           const GValue *value2)
 809 {
 810   guint8 *p1 = value1->data[0].v_pointer;
 811   guint8 *p2 = value2->data[0].v_pointer;
 812
 813   /* not much to compare here, try to at least provide stable lesser/greater result */
 814
 815   return p1 < p2 ? -1 : p1 > p2;
 816 }
 817
 818 static void
 819 param_value_array_init (GParamSpec *pspec)
 820 {
 821   GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
 822
 823   aspec->element_spec = NULL;
 824   aspec->fixed_n_elements = 0; /* disable */
 825 }
 826
 827 static inline guint
 828 value_array_ensure_size (GValueArray *value_array,
 829                          guint        fixed_n_elements)
 830 {
 831   guint changed = 0;
 832
 833   if (fixed_n_elements)
 834     {
 835       while (value_array->n_values < fixed_n_elements)
 836         {
 837           g_value_array_append (value_array, NULL);
 838           changed++;
 839         }
 840       while (value_array->n_values > fixed_n_elements)
 841         {
 842           g_value_array_remove (value_array, value_array->n_values - 1);
 843           changed++;
 844         }
 845     }
 846   return changed;
 847 }
 848
 849 static void
 850 param_value_array_finalize (GParamSpec *pspec)
 851 {
 852   GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
 853   GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_VALUE_ARRAY));
 854
 855   if (aspec->element_spec)
 856     {
 857       g_param_spec_unref (aspec->element_spec);
 858       aspec->element_spec = NULL;
 859     }
 860
 861   parent_class->finalize (pspec);
 862 }
 863
 864 static void
 865 param_value_array_set_default (GParamSpec *pspec,
 866                                GValue     *value)
 867 {
 868   GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
 869
 870   if (!value->data[0].v_pointer && aspec->fixed_n_elements)
 871     value->data[0].v_pointer = g_value_array_new (aspec->fixed_n_elements);
 872
 873   if (value->data[0].v_pointer)
 874     {
 875       /* g_value_reset (value);  already done */
 876       value_array_ensure_size (value->data[0].v_pointer, aspec->fixed_n_elements);
 877     }
 878 }
 879
 880 static gboolean
 881 param_value_array_validate (GParamSpec *pspec,
 882                             GValue     *value)
 883 {
 884   GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
 885   GValueArray *value_array = value->data[0].v_pointer;
 886   guint changed = 0;
 887
 888   if (!value->data[0].v_pointer && aspec->fixed_n_elements)
 889     value->data[0].v_pointer = g_value_array_new (aspec->fixed_n_elements);
 890
 891   if (value->data[0].v_pointer)
 892     {
 893       /* ensure array size validity */
 894       changed += value_array_ensure_size (value_array, aspec->fixed_n_elements);
 895
 896       /* ensure array values validity against a present element spec */
 897       if (aspec->element_spec)
 898         {
 899           GParamSpec *element_spec = aspec->element_spec;
 900           guint i;
 901
 902           for (i = 0; i < value_array->n_values; i++)
 903             {
 904               GValue *element = value_array->values + i;
 905
 906               /* need to fixup value type, or ensure that the array value is initialized at all */
 907               if (!g_value_type_compatible (G_VALUE_TYPE (element), G_PARAM_SPEC_VALUE_TYPE (element_spec)))
 908                 {
 909                   if (G_VALUE_TYPE (element) != 0)
 910                     g_value_unset (element);
 911                   g_value_init (element, G_PARAM_SPEC_VALUE_TYPE (element_spec));
 912                   g_param_value_set_default (element_spec, element);
 913                   changed++;
 914                 }
 915               /* validate array value against element_spec */
 916               changed += g_param_value_validate (element_spec, element);
 917             }
 918         }
 919     }
 920
 921   return changed;
 922 }
 923
 924 static gint
 925 param_value_array_values_cmp (GParamSpec   *pspec,
 926                               const GValue *value1,
 927                               const GValue *value2)
 928 {
 929   GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
 930   GValueArray *value_array1 = value1->data[0].v_pointer;
 931   GValueArray *value_array2 = value2->data[0].v_pointer;
 932
 933   if (!value_array1 || !value_array2)
 934     return value_array2 ? -1 : value_array1 != value_array2;
 935
 936   if (value_array1->n_values != value_array2->n_values)
 937     return value_array1->n_values < value_array2->n_values ? -1 : 1;
 938   else if (!aspec->element_spec)
 939     {
 940       /* we need an element specification for comparisons, so there's not much
 941        * to compare here, try to at least provide stable lesser/greater result
 942        */
 943       return value_array1->n_values < value_array2->n_values ? -1 : value_array1->n_values > value_array2->n_values;
 944     }
 945   else /* value_array1->n_values == value_array2->n_values */
 946     {
 947       guint i;
 948
 949       for (i = 0; i < value_array1->n_values; i++)
 950         {
 951           GValue *element1 = value_array1->values + i;
 952           GValue *element2 = value_array2->values + i;
 953           gint cmp;
 954
 955           /* need corresponding element types, provide stable result otherwise */
 956           if (G_VALUE_TYPE (element1) != G_VALUE_TYPE (element2))
 957             return G_VALUE_TYPE (element1) < G_VALUE_TYPE (element2) ? -1 : 1;
 958           cmp = g_param_values_cmp (aspec->element_spec, element1, element2);
 959           if (cmp)
 960             return cmp;
 961         }
 962       return 0;
 963     }
 964 }
 965
 966 static void
 967 param_object_init (GParamSpec *pspec)
 968 {
 969   /* GParamSpecObject *ospec = G_PARAM_SPEC_OBJECT (pspec); */
 970 }
 971
 972 static void
 973 param_object_set_default (GParamSpec *pspec,
 974                           GValue     *value)
 975 {
 976   value->data[0].v_pointer = NULL;
 977 }
 978
 979 static gboolean
 980 param_object_validate (GParamSpec *pspec,
 981                        GValue     *value)
 982 {
 983   GParamSpecObject *ospec = G_PARAM_SPEC_OBJECT (pspec);
 984   GObject *object = value->data[0].v_pointer;
 985   guint changed = 0;
 986
 987   if (object && !g_value_type_compatible (G_OBJECT_TYPE (object), G_PARAM_SPEC_VALUE_TYPE (ospec)))
 988     {
 989       g_object_unref (object);
 990       value->data[0].v_pointer = NULL;
 991       changed++;
 992     }
 993
 994   return changed;
 995 }
 996
 997 static gint
 998 param_object_values_cmp (GParamSpec   *pspec,
 999                          const GValue *value1,
1000                          const GValue *value2)
1001 {
1002   guint8 *p1 = value1->data[0].v_pointer;
1003   guint8 *p2 = value2->data[0].v_pointer;
1004
1005   /* not much to compare here, try to at least provide stable lesser/greater result */
1006
1007   return p1 < p2 ? -1 : p1 > p2;
1008 }
1009
1010 static void
1011 param_override_init (GParamSpec *pspec)
1012 {
1013   /* GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec); */
1014 }
1015
1016 static void
1017 param_override_finalize (GParamSpec *pspec)
1018 {
1019   GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
1020   GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_OVERRIDE));
1021
1022   if (ospec->overridden)
1023     {
1024       g_param_spec_unref (ospec->overridden);
1025       ospec->overridden = NULL;
1026     }
1027
1028   parent_class->finalize (pspec);
1029 }
1030
1031 static void
1032 param_override_set_default (GParamSpec *pspec,
1033                             GValue     *value)
1034 {
1035   GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
1036
1037   g_param_value_set_default (ospec->overridden, value);
1038 }
1039
1040 static gboolean
1041 param_override_validate (GParamSpec *pspec,
1042                          GValue     *value)
1043 {
1044   GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
1045
1046   return g_param_value_validate (ospec->overridden, value);
1047 }
1048
1049 static gint
1050 param_override_values_cmp (GParamSpec   *pspec,
1051                            const GValue *value1,
1052                            const GValue *value2)
1053 {
1054   GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
1055
1056   return g_param_values_cmp (ospec->overridden, value1, value2);
1057 }
1058
1059 static void
1060 param_gtype_init (GParamSpec *pspec)
1061 {
1062 }
1063
1064 static void
1065 param_gtype_set_default (GParamSpec *pspec,
1066                          GValue     *value)
1067 {
1068   GParamSpecGType *tspec = G_PARAM_SPEC_GTYPE (pspec);
1069
1070   value->data[0].v_pointer = GSIZE_TO_POINTER (tspec->is_a_type);
1071 }
1072
1073 static gboolean
1074 param_gtype_validate (GParamSpec *pspec,
1075                       GValue     *value)
1076 {
1077   GParamSpecGType *tspec = G_PARAM_SPEC_GTYPE (pspec);
1078   GType gtype = GPOINTER_TO_SIZE (value->data[0].v_pointer);
1079   guint changed = 0;
1080
1081   if (tspec->is_a_type != G_TYPE_NONE && !g_type_is_a (gtype, tspec->is_a_type))
1082     {
1083       value->data[0].v_pointer = GSIZE_TO_POINTER (tspec->is_a_type);
1084       changed++;
1085     }
1086
1087   return changed;
1088 }
1089
1090 static gint
1091 param_gtype_values_cmp (GParamSpec   *pspec,
1092                         const GValue *value1,
1093                         const GValue *value2)
1094 {
1095   GType p1 = GPOINTER_TO_SIZE (value1->data[0].v_pointer);
1096   GType p2 = GPOINTER_TO_SIZE (value2->data[0].v_pointer);
1097
1098   /* not much to compare here, try to at least provide stable lesser/greater result */
1099
1100   return p1 < p2 ? -1 : p1 > p2;
1101 }
1102
1103 static void
1104 param_variant_init (GParamSpec *pspec)
1105 {
1106   GParamSpecVariant *vspec = G_PARAM_SPEC_VARIANT (pspec);
1107
1108   vspec->type = NULL;
1109   vspec->default_value = NULL;
1110 }
1111
1112 static void
1113 param_variant_finalize (GParamSpec *pspec)
1114 {
1115   GParamSpecVariant *vspec = G_PARAM_SPEC_VARIANT (pspec);
1116   GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_VARIANT));
1117
1118   if (vspec->default_value)
1119     g_variant_unref (vspec->default_value);
1120   g_variant_type_free (vspec->type);
1121
1122   parent_class->finalize (pspec);
1123 }
1124
1125 static void
1126 param_variant_set_default (GParamSpec *pspec,
1127                            GValue     *value)
1128 {
1129   value->data[0].v_pointer = G_PARAM_SPEC_VARIANT (pspec)->default_value;
1130   value->data[1].v_uint |= G_VALUE_NOCOPY_CONTENTS;
1131 }
1132
1133 static gboolean
1134 param_variant_validate (GParamSpec *pspec,
1135                         GValue     *value)
1136 {
1137   GParamSpecVariant *vspec = G_PARAM_SPEC_VARIANT (pspec);
1138   GVariant *variant = value->data[0].v_pointer;
1139
1140   if ((variant == NULL && vspec->default_value != NULL) ||
1141       (variant != NULL && !g_variant_is_of_type (variant, vspec->type)))
1142     {
1143       g_param_value_set_default (pspec, value);
1144       return TRUE;
1145     }
1146
1147   return FALSE;
1148 }
1149
1150 static gint
1151 param_variant_values_cmp (GParamSpec   *pspec,
1152                           const GValue *value1,
1153                           const GValue *value2)
1154 {
1155   GVariant *v1 = value1->data[0].v_pointer;
1156   GVariant *v2 = value2->data[0].v_pointer;
1157
1158   return v1 < v2 ? -1 : v2 > v1;
1159 }
1160
1161 /* --- type initialization --- */
1162 GType *g_param_spec_types = NULL;
1163
1164 void
1165 _g_param_spec_types_init (void)
1166 {
1167   const guint n_types = 23;
1168   GType type, *spec_types, *spec_types_bound;
1169
1170   g_param_spec_types = g_new0 (GType, n_types);
1171   spec_types = g_param_spec_types;
1172   spec_types_bound = g_param_spec_types + n_types;
1173
1174   /* G_TYPE_PARAM_CHAR
1175    */
1176   {
1177     const GParamSpecTypeInfo pspec_info = {
1178       sizeof (GParamSpecChar),  /* instance_size */
1179       16,                       /* n_preallocs */
1180       param_char_init,          /* instance_init */
1181       G_TYPE_CHAR,              /* value_type */
1182       NULL,                     /* finalize */
1183       param_char_set_default,   /* value_set_default */
1184       param_char_validate,      /* value_validate */
1185       param_int_values_cmp,     /* values_cmp */
1186     };
1187     type = g_param_type_register_static (g_intern_static_string ("GParamChar"), &pspec_info);
1188     *spec_types++ = type;
1189     g_assert (type == G_TYPE_PARAM_CHAR);
1190   }
1191
1192   /* G_TYPE_PARAM_UCHAR
1193    */
1194   {
1195     const GParamSpecTypeInfo pspec_info = {
1196       sizeof (GParamSpecUChar), /* instance_size */
1197       16,                       /* n_preallocs */
1198       param_uchar_init,         /* instance_init */
1199       G_TYPE_UCHAR,             /* value_type */
1200       NULL,                     /* finalize */
1201       param_uchar_set_default,  /* value_set_default */
1202       param_uchar_validate,     /* value_validate */
1203       param_uint_values_cmp,    /* values_cmp */
1204     };
1205     type = g_param_type_register_static (g_intern_static_string ("GParamUChar"), &pspec_info);
1206     *spec_types++ = type;
1207     g_assert (type == G_TYPE_PARAM_UCHAR);
1208   }
1209
1210   /* G_TYPE_PARAM_BOOLEAN
1211    */
1212   {
1213     const GParamSpecTypeInfo pspec_info = {
1214       sizeof (GParamSpecBoolean), /* instance_size */
1215       16,                         /* n_preallocs */
1216       NULL,                       /* instance_init */
1217       G_TYPE_BOOLEAN,             /* value_type */
1218       NULL,                       /* finalize */
1219       param_boolean_set_default,  /* value_set_default */
1220       param_boolean_validate,     /* value_validate */
1221       param_int_values_cmp,       /* values_cmp */
1222     };
1223     type = g_param_type_register_static (g_intern_static_string ("GParamBoolean"), &pspec_info);
1224     *spec_types++ = type;
1225     g_assert (type == G_TYPE_PARAM_BOOLEAN);
1226   }
1227
1228   /* G_TYPE_PARAM_INT
1229    */
1230   {
1231     const GParamSpecTypeInfo pspec_info = {
1232       sizeof (GParamSpecInt),   /* instance_size */
1233       16,                       /* n_preallocs */
1234       param_int_init,           /* instance_init */
1235       G_TYPE_INT,               /* value_type */
1236       NULL,                     /* finalize */
1237       param_int_set_default,    /* value_set_default */
1238       param_int_validate,       /* value_validate */
1239       param_int_values_cmp,     /* values_cmp */
1240     };
1241     type = g_param_type_register_static (g_intern_static_string ("GParamInt"), &pspec_info);
1242     *spec_types++ = type;
1243     g_assert (type == G_TYPE_PARAM_INT);
1244   }
1245
1246   /* G_TYPE_PARAM_UINT
1247    */
1248   {
1249     const GParamSpecTypeInfo pspec_info = {
1250       sizeof (GParamSpecUInt),  /* instance_size */
1251       16,                       /* n_preallocs */
1252       param_uint_init,          /* instance_init */
1253       G_TYPE_UINT,              /* value_type */
1254       NULL,                     /* finalize */
1255       param_uint_set_default,   /* value_set_default */
1256       param_uint_validate,      /* value_validate */
1257       param_uint_values_cmp,    /* values_cmp */
1258     };
1259     type = g_param_type_register_static (g_intern_static_string ("GParamUInt"), &pspec_info);
1260     *spec_types++ = type;
1261     g_assert (type == G_TYPE_PARAM_UINT);
1262   }
1263
1264   /* G_TYPE_PARAM_LONG
1265    */
1266   {
1267     const GParamSpecTypeInfo pspec_info = {
1268       sizeof (GParamSpecLong),  /* instance_size */
1269       16,                       /* n_preallocs */
1270       param_long_init,          /* instance_init */
1271       G_TYPE_LONG,              /* value_type */
1272       NULL,                     /* finalize */
1273       param_long_set_default,   /* value_set_default */
1274       param_long_validate,      /* value_validate */
1275       param_long_values_cmp,    /* values_cmp */
1276     };
1277     type = g_param_type_register_static (g_intern_static_string ("GParamLong"), &pspec_info);
1278     *spec_types++ = type;
1279     g_assert (type == G_TYPE_PARAM_LONG);
1280   }
1281
1282   /* G_TYPE_PARAM_ULONG
1283    */
1284   {
1285     const GParamSpecTypeInfo pspec_info = {
1286       sizeof (GParamSpecULong), /* instance_size */
1287       16,                       /* n_preallocs */
1288       param_ulong_init,         /* instance_init */
1289       G_TYPE_ULONG,             /* value_type */
1290       NULL,                     /* finalize */
1291       param_ulong_set_default,  /* value_set_default */
1292       param_ulong_validate,     /* value_validate */
1293       param_ulong_values_cmp,   /* values_cmp */
1294     };
1295     type = g_param_type_register_static (g_intern_static_string ("GParamULong"), &pspec_info);
1296     *spec_types++ = type;
1297     g_assert (type == G_TYPE_PARAM_ULONG);
1298   }
1299
1300   /* G_TYPE_PARAM_INT64
1301    */
1302   {
1303     const GParamSpecTypeInfo pspec_info = {
1304       sizeof (GParamSpecInt64),  /* instance_size */
1305       16,                       /* n_preallocs */
1306       param_int64_init,         /* instance_init */
1307       G_TYPE_INT64,             /* value_type */
1308       NULL,                     /* finalize */
1309       param_int64_set_default,  /* value_set_default */
1310       param_int64_validate,     /* value_validate */
1311       param_int64_values_cmp,   /* values_cmp */
1312     };
1313     type = g_param_type_register_static (g_intern_static_string ("GParamInt64"), &pspec_info);
1314     *spec_types++ = type;
1315     g_assert (type == G_TYPE_PARAM_INT64);
1316   }
1317
1318   /* G_TYPE_PARAM_UINT64
1319    */
1320   {
1321     const GParamSpecTypeInfo pspec_info = {
1322       sizeof (GParamSpecUInt64), /* instance_size */
1323       16,                       /* n_preallocs */
1324       param_uint64_init,        /* instance_init */
1325       G_TYPE_UINT64,            /* value_type */
1326       NULL,                     /* finalize */
1327       param_uint64_set_default, /* value_set_default */
1328       param_uint64_validate,    /* value_validate */
1329       param_uint64_values_cmp,  /* values_cmp */
1330     };
1331     type = g_param_type_register_static (g_intern_static_string ("GParamUInt64"), &pspec_info);
1332     *spec_types++ = type;
1333     g_assert (type == G_TYPE_PARAM_UINT64);
1334   }
1335
1336   /* G_TYPE_PARAM_UNICHAR
1337    */
1338   {
1339     const GParamSpecTypeInfo pspec_info = {
1340       sizeof (GParamSpecUnichar), /* instance_size */
1341       16,                        /* n_preallocs */
1342       param_unichar_init,        /* instance_init */
1343       G_TYPE_UINT,               /* value_type */
1344       NULL,                      /* finalize */
1345       param_unichar_set_default, /* value_set_default */
1346       param_unichar_validate,    /* value_validate */
1347       param_unichar_values_cmp,  /* values_cmp */
1348     };
1349     type = g_param_type_register_static (g_intern_static_string ("GParamUnichar"), &pspec_info);
1350     *spec_types++ = type;
1351     g_assert (type == G_TYPE_PARAM_UNICHAR);
1352   }
1353
1354  /* G_TYPE_PARAM_ENUM
1355    */
1356   {
1357     const GParamSpecTypeInfo pspec_info = {
1358       sizeof (GParamSpecEnum),  /* instance_size */
1359       16,                       /* n_preallocs */
1360       param_enum_init,          /* instance_init */
1361       G_TYPE_ENUM,              /* value_type */
1362       param_enum_finalize,      /* finalize */
1363       param_enum_set_default,   /* value_set_default */
1364       param_enum_validate,      /* value_validate */
1365       param_long_values_cmp,    /* values_cmp */
1366     };
1367     type = g_param_type_register_static (g_intern_static_string ("GParamEnum"), &pspec_info);
1368     *spec_types++ = type;
1369     g_assert (type == G_TYPE_PARAM_ENUM);
1370   }
1371
1372   /* G_TYPE_PARAM_FLAGS
1373    */
1374   {
1375     const GParamSpecTypeInfo pspec_info = {
1376       sizeof (GParamSpecFlags), /* instance_size */
1377       16,                       /* n_preallocs */
1378       param_flags_init,         /* instance_init */
1379       G_TYPE_FLAGS,             /* value_type */
1380       param_flags_finalize,     /* finalize */
1381       param_flags_set_default,  /* value_set_default */
1382       param_flags_validate,     /* value_validate */
1383       param_ulong_values_cmp,   /* values_cmp */
1384     };
1385     type = g_param_type_register_static (g_intern_static_string ("GParamFlags"), &pspec_info);
1386     *spec_types++ = type;
1387     g_assert (type == G_TYPE_PARAM_FLAGS);
1388   }
1389
1390   /* G_TYPE_PARAM_FLOAT
1391    */
1392   {
1393     const GParamSpecTypeInfo pspec_info = {
1394       sizeof (GParamSpecFloat), /* instance_size */
1395       16,                       /* n_preallocs */
1396       param_float_init,         /* instance_init */
1397       G_TYPE_FLOAT,             /* value_type */
1398       NULL,                     /* finalize */
1399       param_float_set_default,  /* value_set_default */
1400       param_float_validate,     /* value_validate */
1401       param_float_values_cmp,   /* values_cmp */
1402     };
1403     type = g_param_type_register_static (g_intern_static_string ("GParamFloat"), &pspec_info);
1404     *spec_types++ = type;
1405     g_assert (type == G_TYPE_PARAM_FLOAT);
1406   }
1407
1408   /* G_TYPE_PARAM_DOUBLE
1409    */
1410   {
1411     const GParamSpecTypeInfo pspec_info = {
1412       sizeof (GParamSpecDouble),        /* instance_size */
1413       16,                               /* n_preallocs */
1414       param_double_init,                /* instance_init */
1415       G_TYPE_DOUBLE,                    /* value_type */
1416       NULL,                             /* finalize */
1417       param_double_set_default,         /* value_set_default */
1418       param_double_validate,            /* value_validate */
1419       param_double_values_cmp,          /* values_cmp */
1420     };
1421     type = g_param_type_register_static (g_intern_static_string ("GParamDouble"), &pspec_info);
1422     *spec_types++ = type;
1423     g_assert (type == G_TYPE_PARAM_DOUBLE);
1424   }
1425
1426   /* G_TYPE_PARAM_STRING
1427    */
1428   {
1429     const GParamSpecTypeInfo pspec_info = {
1430       sizeof (GParamSpecString),        /* instance_size */
1431       16,                               /* n_preallocs */
1432       param_string_init,                /* instance_init */
1433       G_TYPE_STRING,                    /* value_type */
1434       param_string_finalize,            /* finalize */
1435       param_string_set_default,         /* value_set_default */
1436       param_string_validate,            /* value_validate */
1437       param_string_values_cmp,          /* values_cmp */
1438     };
1439     type = g_param_type_register_static (g_intern_static_string ("GParamString"), &pspec_info);
1440     *spec_types++ = type;
1441     g_assert (type == G_TYPE_PARAM_STRING);
1442   }
1443
1444   /* G_TYPE_PARAM_PARAM
1445    */
1446   {
1447     const GParamSpecTypeInfo pspec_info = {
1448       sizeof (GParamSpecParam), /* instance_size */
1449       16,                       /* n_preallocs */
1450       param_param_init,         /* instance_init */
1451       G_TYPE_PARAM,             /* value_type */
1452       NULL,                     /* finalize */
1453       param_param_set_default,  /* value_set_default */
1454       param_param_validate,     /* value_validate */
1455       param_pointer_values_cmp, /* values_cmp */
1456     };
1457     type = g_param_type_register_static (g_intern_static_string ("GParamParam"), &pspec_info);
1458     *spec_types++ = type;
1459     g_assert (type == G_TYPE_PARAM_PARAM);
1460   }
1461
1462   /* G_TYPE_PARAM_BOXED
1463    */
1464   {
1465     const GParamSpecTypeInfo pspec_info = {
1466       sizeof (GParamSpecBoxed), /* instance_size */
1467       4,                        /* n_preallocs */
1468       param_boxed_init,         /* instance_init */
1469       G_TYPE_BOXED,             /* value_type */
1470       NULL,                     /* finalize */
1471       param_boxed_set_default,  /* value_set_default */
1472       param_boxed_validate,     /* value_validate */
1473       param_boxed_values_cmp,   /* values_cmp */
1474     };
1475     type = g_param_type_register_static (g_intern_static_string ("GParamBoxed"), &pspec_info);
1476     *spec_types++ = type;
1477     g_assert (type == G_TYPE_PARAM_BOXED);
1478   }
1479
1480   /* G_TYPE_PARAM_POINTER
1481    */
1482   {
1483     const GParamSpecTypeInfo pspec_info = {
1484       sizeof (GParamSpecPointer),  /* instance_size */
1485       0,                           /* n_preallocs */
1486       param_pointer_init,          /* instance_init */
1487       G_TYPE_POINTER,              /* value_type */
1488       NULL,                        /* finalize */
1489       param_pointer_set_default,   /* value_set_default */
1490       param_pointer_validate,      /* value_validate */
1491       param_pointer_values_cmp,    /* values_cmp */
1492     };
1493     type = g_param_type_register_static (g_intern_static_string ("GParamPointer"), &pspec_info);
1494     *spec_types++ = type;
1495     g_assert (type == G_TYPE_PARAM_POINTER);
1496   }
1497
1498   /* G_TYPE_PARAM_VALUE_ARRAY
1499    */
1500   {
1501     /* const */ GParamSpecTypeInfo pspec_info = {
1502       sizeof (GParamSpecValueArray),    /* instance_size */
1503       0,                                /* n_preallocs */
1504       param_value_array_init,           /* instance_init */
1505       0xdeadbeef,                       /* value_type, assigned further down */
1506       param_value_array_finalize,       /* finalize */
1507       param_value_array_set_default,    /* value_set_default */
1508       param_value_array_validate,       /* value_validate */
1509       param_value_array_values_cmp,     /* values_cmp */
1510     };
1511     pspec_info.value_type = G_TYPE_VALUE_ARRAY;
1512     type = g_param_type_register_static (g_intern_static_string ("GParamValueArray"), &pspec_info);
1513     *spec_types++ = type;
1514     g_assert (type == G_TYPE_PARAM_VALUE_ARRAY);
1515   }
1516
1517   /* G_TYPE_PARAM_OBJECT
1518    */
1519   {
1520     const GParamSpecTypeInfo pspec_info = {
1521       sizeof (GParamSpecObject), /* instance_size */
1522       16,                        /* n_preallocs */
1523       param_object_init,         /* instance_init */
1524       G_TYPE_OBJECT,             /* value_type */
1525       NULL,                      /* finalize */
1526       param_object_set_default,  /* value_set_default */
1527       param_object_validate,     /* value_validate */
1528       param_object_values_cmp,   /* values_cmp */
1529     };
1530     type = g_param_type_register_static (g_intern_static_string ("GParamObject"), &pspec_info);
1531     *spec_types++ = type;
1532     g_assert (type == G_TYPE_PARAM_OBJECT);
1533   }
1534
1535   /* G_TYPE_PARAM_OVERRIDE
1536    */
1537   {
1538     const GParamSpecTypeInfo pspec_info = {
1539       sizeof (GParamSpecOverride), /* instance_size */
1540       16,                        /* n_preallocs */
1541       param_override_init,       /* instance_init */
1542       G_TYPE_NONE,               /* value_type */
1543       param_override_finalize,   /* finalize */
1544       param_override_set_default, /* value_set_default */
1545       param_override_validate,    /* value_validate */
1546       param_override_values_cmp,  /* values_cmp */
1547     };
1548     type = g_param_type_register_static (g_intern_static_string ("GParamOverride"), &pspec_info);
1549     *spec_types++ = type;
1550     g_assert (type == G_TYPE_PARAM_OVERRIDE);
1551   }
1552
1553   /* G_TYPE_PARAM_GTYPE
1554    */
1555   {
1556     GParamSpecTypeInfo pspec_info = {
1557       sizeof (GParamSpecGType), /* instance_size */
1558       0,                        /* n_preallocs */
1559       param_gtype_init,         /* instance_init */
1560       0xdeadbeef,               /* value_type, assigned further down */
1561       NULL,                     /* finalize */
1562       param_gtype_set_default,  /* value_set_default */
1563       param_gtype_validate,     /* value_validate */
1564       param_gtype_values_cmp,   /* values_cmp */
1565     };
1566     pspec_info.value_type = G_TYPE_GTYPE;
1567     type = g_param_type_register_static (g_intern_static_string ("GParamGType"), &pspec_info);
1568     *spec_types++ = type;
1569     g_assert (type == G_TYPE_PARAM_GTYPE);
1570   }
1571
1572   /* G_TYPE_PARAM_VARIANT
1573    */
1574   {
1575     const GParamSpecTypeInfo pspec_info = {
1576       sizeof (GParamSpecVariant), /* instance_size */
1577       0,                          /* n_preallocs */
1578       param_variant_init,         /* instance_init */
1579       G_TYPE_VARIANT,             /* value_type */
1580       param_variant_finalize,     /* finalize */
1581       param_variant_set_default,  /* value_set_default */
1582       param_variant_validate,     /* value_validate */
1583       param_variant_values_cmp,   /* values_cmp */
1584     };
1585     type = g_param_type_register_static (g_intern_static_string ("GParamVariant"), &pspec_info);
1586     *spec_types++ = type;
1587     g_assert (type == G_TYPE_PARAM_VARIANT);
1588   }
1589
1590   g_assert (spec_types == spec_types_bound);
1591 }
1592
1593 /* --- GParamSpec initialization --- */
1594
1595 /**
1596  * g_param_spec_char:
1597  * @name: canonical name of the property specified
1598  * @nick: nick name for the property specified
1599  * @blurb: description of the property specified
1600  * @minimum: minimum value for the property specified
1601  * @maximum: maximum value for the property specified
1602  * @default_value: default value for the property specified
1603  * @flags: flags for the property specified
1604  *
1605  * Creates a new #GParamSpecChar instance specifying a %G_TYPE_CHAR property.
1606  *
1607  * Returns: (transfer full): a newly created parameter specification
1608  */
1609 GParamSpec*
1610 g_param_spec_char (const gchar *name,
1611                    const gchar *nick,
1612                    const gchar *blurb,
1613                    gint8        minimum,
1614                    gint8        maximum,
1615                    gint8        default_value,
1616                    GParamFlags  flags)
1617 {
1618   GParamSpecChar *cspec;
1619
1620   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1621
1622   cspec = g_param_spec_internal (G_TYPE_PARAM_CHAR,
1623                                  name,
1624                                  nick,
1625                                  blurb,
1626                                  flags);
1627   if (cspec == NULL)
1628     return NULL;
1629
1630   cspec->minimum = minimum;
1631   cspec->maximum = maximum;
1632   cspec->default_value = default_value;
1633
1634   return G_PARAM_SPEC (cspec);
1635 }
1636
1637 /**
1638  * g_param_spec_uchar:
1639  * @name: canonical name of the property specified
1640  * @nick: nick name for the property specified
1641  * @blurb: description of the property specified
1642  * @minimum: minimum value for the property specified
1643  * @maximum: maximum value for the property specified
1644  * @default_value: default value for the property specified
1645  * @flags: flags for the property specified
1646  *
1647  * Creates a new #GParamSpecUChar instance specifying a %G_TYPE_UCHAR property.
1648  *
1649  * Returns: (transfer full): a newly created parameter specification
1650  */
1651 GParamSpec*
1652 g_param_spec_uchar (const gchar *name,
1653                     const gchar *nick,
1654                     const gchar *blurb,
1655                     guint8       minimum,
1656                     guint8       maximum,
1657                     guint8       default_value,
1658                     GParamFlags  flags)
1659 {
1660   GParamSpecUChar *uspec;
1661
1662   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1663
1664   uspec = g_param_spec_internal (G_TYPE_PARAM_UCHAR,
1665                                  name,
1666                                  nick,
1667                                  blurb,
1668                                  flags);
1669   if (uspec == NULL)
1670     return NULL;
1671
1672   uspec->minimum = minimum;
1673   uspec->maximum = maximum;
1674   uspec->default_value = default_value;
1675
1676   return G_PARAM_SPEC (uspec);
1677 }
1678
1679 /**
1680  * g_param_spec_boolean:
1681  * @name: canonical name of the property specified
1682  * @nick: nick name for the property specified
1683  * @blurb: description of the property specified
1684  * @default_value: default value for the property specified
1685  * @flags: flags for the property specified
1686  *
1687  * Creates a new #GParamSpecBoolean instance specifying a %G_TYPE_BOOLEAN
1688  * property. In many cases, it may be more appropriate to use an enum with
1689  * g_param_spec_enum(), both to improve code clarity by using explicitly named
1690  * values, and to allow for more values to be added in future without breaking
1691  * API.
1692  *
1693  * See g_param_spec_internal() for details on property names.
1694  *
1695  * Returns: (transfer full): a newly created parameter specification
1696  */
1697 GParamSpec*
1698 g_param_spec_boolean (const gchar *name,
1699                       const gchar *nick,
1700                       const gchar *blurb,
1701                       gboolean     default_value,
1702                       GParamFlags  flags)
1703 {
1704   GParamSpecBoolean *bspec;
1705
1706   g_return_val_if_fail (default_value == TRUE || default_value == FALSE, NULL);
1707
1708   bspec = g_param_spec_internal (G_TYPE_PARAM_BOOLEAN,
1709                                  name,
1710                                  nick,
1711                                  blurb,
1712                                  flags);
1713   if (bspec == NULL)
1714     return NULL;
1715
1716   bspec->default_value = default_value;
1717
1718   return G_PARAM_SPEC (bspec);
1719 }
1720
1721 /**
1722  * g_param_spec_int:
1723  * @name: canonical name of the property specified
1724  * @nick: nick name for the property specified
1725  * @blurb: description of the property specified
1726  * @minimum: minimum value for the property specified
1727  * @maximum: maximum value for the property specified
1728  * @default_value: default value for the property specified
1729  * @flags: flags for the property specified
1730  *
1731  * Creates a new #GParamSpecInt instance specifying a %G_TYPE_INT property.
1732  *
1733  * See g_param_spec_internal() for details on property names.
1734  *
1735  * Returns: (transfer full): a newly created parameter specification
1736  */
1737 GParamSpec*
1738 g_param_spec_int (const gchar *name,
1739                   const gchar *nick,
1740                   const gchar *blurb,
1741                   gint         minimum,
1742                   gint         maximum,
1743                   gint         default_value,
1744                   GParamFlags  flags)
1745 {
1746   GParamSpecInt *ispec;
1747
1748   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1749
1750   ispec = g_param_spec_internal (G_TYPE_PARAM_INT,
1751                                  name,
1752                                  nick,
1753                                  blurb,
1754                                  flags);
1755   if (ispec == NULL)
1756     return NULL;
1757
1758   ispec->minimum = minimum;
1759   ispec->maximum = maximum;
1760   ispec->default_value = default_value;
1761
1762   return G_PARAM_SPEC (ispec);
1763 }
1764
1765 /**
1766  * g_param_spec_uint:
1767  * @name: canonical name of the property specified
1768  * @nick: nick name for the property specified
1769  * @blurb: description of the property specified
1770  * @minimum: minimum value for the property specified
1771  * @maximum: maximum value for the property specified
1772  * @default_value: default value for the property specified
1773  * @flags: flags for the property specified
1774  *
1775  * Creates a new #GParamSpecUInt instance specifying a %G_TYPE_UINT property.
1776  *
1777  * See g_param_spec_internal() for details on property names.
1778  *
1779  * Returns: (transfer full): a newly created parameter specification
1780  */
1781 GParamSpec*
1782 g_param_spec_uint (const gchar *name,
1783                    const gchar *nick,
1784                    const gchar *blurb,
1785                    guint        minimum,
1786                    guint        maximum,
1787                    guint        default_value,
1788                    GParamFlags  flags)
1789 {
1790   GParamSpecUInt *uspec;
1791
1792   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1793
1794   uspec = g_param_spec_internal (G_TYPE_PARAM_UINT,
1795                                  name,
1796                                  nick,
1797                                  blurb,
1798                                  flags);
1799   if (uspec == NULL)
1800     return NULL;
1801
1802   uspec->minimum = minimum;
1803   uspec->maximum = maximum;
1804   uspec->default_value = default_value;
1805
1806   return G_PARAM_SPEC (uspec);
1807 }
1808
1809 /**
1810  * g_param_spec_long:
1811  * @name: canonical name of the property specified
1812  * @nick: nick name for the property specified
1813  * @blurb: description of the property specified
1814  * @minimum: minimum value for the property specified
1815  * @maximum: maximum value for the property specified
1816  * @default_value: default value for the property specified
1817  * @flags: flags for the property specified
1818  *
1819  * Creates a new #GParamSpecLong instance specifying a %G_TYPE_LONG property.
1820  *
1821  * See g_param_spec_internal() for details on property names.
1822  *
1823  * Returns: (transfer full): a newly created parameter specification
1824  */
1825 GParamSpec*
1826 g_param_spec_long (const gchar *name,
1827                    const gchar *nick,
1828                    const gchar *blurb,
1829                    glong        minimum,
1830                    glong        maximum,
1831                    glong        default_value,
1832                    GParamFlags  flags)
1833 {
1834   GParamSpecLong *lspec;
1835
1836   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1837
1838   lspec = g_param_spec_internal (G_TYPE_PARAM_LONG,
1839                                  name,
1840                                  nick,
1841                                  blurb,
1842                                  flags);
1843   if (lspec == NULL)
1844     return NULL;
1845
1846   lspec->minimum = minimum;
1847   lspec->maximum = maximum;
1848   lspec->default_value = default_value;
1849
1850   return G_PARAM_SPEC (lspec);
1851 }
1852
1853 /**
1854  * g_param_spec_ulong:
1855  * @name: canonical name of the property specified
1856  * @nick: nick name for the property specified
1857  * @blurb: description of the property specified
1858  * @minimum: minimum value for the property specified
1859  * @maximum: maximum value for the property specified
1860  * @default_value: default value for the property specified
1861  * @flags: flags for the property specified
1862  *
1863  * Creates a new #GParamSpecULong instance specifying a %G_TYPE_ULONG
1864  * property.
1865  *
1866  * See g_param_spec_internal() for details on property names.
1867  *
1868  * Returns: (transfer full): a newly created parameter specification
1869  */
1870 GParamSpec*
1871 g_param_spec_ulong (const gchar *name,
1872                     const gchar *nick,
1873                     const gchar *blurb,
1874                     gulong       minimum,
1875                     gulong       maximum,
1876                     gulong       default_value,
1877                     GParamFlags  flags)
1878 {
1879   GParamSpecULong *uspec;
1880
1881   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1882
1883   uspec = g_param_spec_internal (G_TYPE_PARAM_ULONG,
1884                                  name,
1885                                  nick,
1886                                  blurb,
1887                                  flags);
1888   if (uspec == NULL)
1889     return NULL;
1890
1891   uspec->minimum = minimum;
1892   uspec->maximum = maximum;
1893   uspec->default_value = default_value;
1894
1895   return G_PARAM_SPEC (uspec);
1896 }
1897
1898 /**
1899  * g_param_spec_int64:
1900  * @name: canonical name of the property specified
1901  * @nick: nick name for the property specified
1902  * @blurb: description of the property specified
1903  * @minimum: minimum value for the property specified
1904  * @maximum: maximum value for the property specified
1905  * @default_value: default value for the property specified
1906  * @flags: flags for the property specified
1907  *
1908  * Creates a new #GParamSpecInt64 instance specifying a %G_TYPE_INT64 property.
1909  *
1910  * See g_param_spec_internal() for details on property names.
1911  *
1912  * Returns: (transfer full): a newly created parameter specification
1913  */
1914 GParamSpec*
1915 g_param_spec_int64 (const gchar *name,
1916                     const gchar *nick,
1917                     const gchar *blurb,
1918                     gint64       minimum,
1919                     gint64       maximum,
1920                     gint64       default_value,
1921                     GParamFlags  flags)
1922 {
1923   GParamSpecInt64 *lspec;
1924
1925   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1926
1927   lspec = g_param_spec_internal (G_TYPE_PARAM_INT64,
1928                                  name,
1929                                  nick,
1930                                  blurb,
1931                                  flags);
1932   if (lspec == NULL)
1933     return NULL;
1934
1935   lspec->minimum = minimum;
1936   lspec->maximum = maximum;
1937   lspec->default_value = default_value;
1938
1939   return G_PARAM_SPEC (lspec);
1940 }
1941
1942 /**
1943  * g_param_spec_uint64:
1944  * @name: canonical name of the property specified
1945  * @nick: nick name for the property specified
1946  * @blurb: description of the property specified
1947  * @minimum: minimum value for the property specified
1948  * @maximum: maximum value for the property specified
1949  * @default_value: default value for the property specified
1950  * @flags: flags for the property specified
1951  *
1952  * Creates a new #GParamSpecUInt64 instance specifying a %G_TYPE_UINT64
1953  * property.
1954  *
1955  * See g_param_spec_internal() for details on property names.
1956  *
1957  * Returns: (transfer full): a newly created parameter specification
1958  */
1959 GParamSpec*
1960 g_param_spec_uint64 (const gchar *name,
1961                      const gchar *nick,
1962                      const gchar *blurb,
1963                      guint64      minimum,
1964                      guint64      maximum,
1965                      guint64      default_value,
1966                      GParamFlags  flags)
1967 {
1968   GParamSpecUInt64 *uspec;
1969
1970   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
1971
1972   uspec = g_param_spec_internal (G_TYPE_PARAM_UINT64,
1973                                  name,
1974                                  nick,
1975                                  blurb,
1976                                  flags);
1977   if (uspec == NULL)
1978     return NULL;
1979
1980   uspec->minimum = minimum;
1981   uspec->maximum = maximum;
1982   uspec->default_value = default_value;
1983
1984   return G_PARAM_SPEC (uspec);
1985 }
1986
1987 /**
1988  * g_param_spec_unichar:
1989  * @name: canonical name of the property specified
1990  * @nick: nick name for the property specified
1991  * @blurb: description of the property specified
1992  * @default_value: default value for the property specified
1993  * @flags: flags for the property specified
1994  *
1995  * Creates a new #GParamSpecUnichar instance specifying a %G_TYPE_UINT
1996  * property. #GValue structures for this property can be accessed with
1997  * g_value_set_uint() and g_value_get_uint().
1998  *
1999  * See g_param_spec_internal() for details on property names.
2000  *
2001  * Returns: (transfer full): a newly created parameter specification
2002  */
2003 GParamSpec*
2004 g_param_spec_unichar (const gchar *name,
2005                       const gchar *nick,
2006                       const gchar *blurb,
2007                       gunichar     default_value,
2008                       GParamFlags  flags)
2009 {
2010   GParamSpecUnichar *uspec;
2011
2012   uspec = g_param_spec_internal (G_TYPE_PARAM_UNICHAR,
2013                                  name,
2014                                  nick,
2015                                  blurb,
2016                                  flags);
2017   if (uspec == NULL)
2018     return NULL;
2019
2020   uspec->default_value = default_value;
2021
2022   return G_PARAM_SPEC (uspec);
2023 }
2024
2025 /**
2026  * g_param_spec_enum:
2027  * @name: canonical name of the property specified
2028  * @nick: nick name for the property specified
2029  * @blurb: description of the property specified
2030  * @enum_type: a #GType derived from %G_TYPE_ENUM
2031  * @default_value: default value for the property specified
2032  * @flags: flags for the property specified
2033  *
2034  * Creates a new #GParamSpecEnum instance specifying a %G_TYPE_ENUM
2035  * property.
2036  *
2037  * See g_param_spec_internal() for details on property names.
2038  *
2039  * Returns: (transfer full): a newly created parameter specification
2040  */
2041 GParamSpec*
2042 g_param_spec_enum (const gchar *name,
2043                    const gchar *nick,
2044                    const gchar *blurb,
2045                    GType        enum_type,
2046                    gint         default_value,
2047                    GParamFlags  flags)
2048 {
2049   GParamSpecEnum *espec;
2050   GEnumClass *enum_class;
2051
2052   g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
2053
2054   enum_class = g_type_class_ref (enum_type);
2055
2056   g_return_val_if_fail (g_enum_get_value (enum_class, default_value) != NULL, NULL);
2057
2058   espec = g_param_spec_internal (G_TYPE_PARAM_ENUM,
2059                                  name,
2060                                  nick,
2061                                  blurb,
2062                                  flags);
2063   if (espec == NULL)
2064     return NULL;
2065
2066   espec->enum_class = enum_class;
2067   espec->default_value = default_value;
2068   G_PARAM_SPEC (espec)->value_type = enum_type;
2069
2070   return G_PARAM_SPEC (espec);
2071 }
2072
2073 /**
2074  * g_param_spec_flags:
2075  * @name: canonical name of the property specified
2076  * @nick: nick name for the property specified
2077  * @blurb: description of the property specified
2078  * @flags_type: a #GType derived from %G_TYPE_FLAGS
2079  * @default_value: default value for the property specified
2080  * @flags: flags for the property specified
2081  *
2082  * Creates a new #GParamSpecFlags instance specifying a %G_TYPE_FLAGS
2083  * property.
2084  *
2085  * See g_param_spec_internal() for details on property names.
2086  *
2087  * Returns: (transfer full): a newly created parameter specification
2088  */
2089 GParamSpec*
2090 g_param_spec_flags (const gchar *name,
2091                     const gchar *nick,
2092                     const gchar *blurb,
2093                     GType        flags_type,
2094                     guint        default_value,
2095                     GParamFlags  flags)
2096 {
2097   GParamSpecFlags *fspec;
2098   GFlagsClass *flags_class;
2099
2100   g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
2101
2102   flags_class = g_type_class_ref (flags_type);
2103
2104   g_return_val_if_fail ((default_value & flags_class->mask) == default_value, NULL);
2105
2106   fspec = g_param_spec_internal (G_TYPE_PARAM_FLAGS,
2107                                  name,
2108                                  nick,
2109                                  blurb,
2110                                  flags);
2111   if (fspec == NULL)
2112     return NULL;
2113
2114   fspec->flags_class = flags_class;
2115   fspec->default_value = default_value;
2116   G_PARAM_SPEC (fspec)->value_type = flags_type;
2117
2118   return G_PARAM_SPEC (fspec);
2119 }
2120
2121 /**
2122  * g_param_spec_float:
2123  * @name: canonical name of the property specified
2124  * @nick: nick name for the property specified
2125  * @blurb: description of the property specified
2126  * @minimum: minimum value for the property specified
2127  * @maximum: maximum value for the property specified
2128  * @default_value: default value for the property specified
2129  * @flags: flags for the property specified
2130  *
2131  * Creates a new #GParamSpecFloat instance specifying a %G_TYPE_FLOAT property.
2132  *
2133  * See g_param_spec_internal() for details on property names.
2134  *
2135  * Returns: (transfer full): a newly created parameter specification
2136  */
2137 GParamSpec*
2138 g_param_spec_float (const gchar *name,
2139                     const gchar *nick,
2140                     const gchar *blurb,
2141                     gfloat       minimum,
2142                     gfloat       maximum,
2143                     gfloat       default_value,
2144                     GParamFlags  flags)
2145 {
2146   GParamSpecFloat *fspec;
2147
2148   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
2149
2150   fspec = g_param_spec_internal (G_TYPE_PARAM_FLOAT,
2151                                  name,
2152                                  nick,
2153                                  blurb,
2154                                  flags);
2155   if (fspec == NULL)
2156     return NULL;
2157
2158   fspec->minimum = minimum;
2159   fspec->maximum = maximum;
2160   fspec->default_value = default_value;
2161
2162   return G_PARAM_SPEC (fspec);
2163 }
2164
2165 /**
2166  * g_param_spec_double:
2167  * @name: canonical name of the property specified
2168  * @nick: nick name for the property specified
2169  * @blurb: description of the property specified
2170  * @minimum: minimum value for the property specified
2171  * @maximum: maximum value for the property specified
2172  * @default_value: default value for the property specified
2173  * @flags: flags for the property specified
2174  *
2175  * Creates a new #GParamSpecDouble instance specifying a %G_TYPE_DOUBLE
2176  * property.
2177  *
2178  * See g_param_spec_internal() for details on property names.
2179  *
2180  * Returns: (transfer full): a newly created parameter specification
2181  */
2182 GParamSpec*
2183 g_param_spec_double (const gchar *name,
2184                      const gchar *nick,
2185                      const gchar *blurb,
2186                      gdouble      minimum,
2187                      gdouble      maximum,
2188                      gdouble      default_value,
2189                      GParamFlags  flags)
2190 {
2191   GParamSpecDouble *dspec;
2192
2193   g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
2194
2195   dspec = g_param_spec_internal (G_TYPE_PARAM_DOUBLE,
2196                                  name,
2197                                  nick,
2198                                  blurb,
2199                                  flags);
2200   if (dspec == NULL)
2201     return NULL;
2202
2203   dspec->minimum = minimum;
2204   dspec->maximum = maximum;
2205   dspec->default_value = default_value;
2206
2207   return G_PARAM_SPEC (dspec);
2208 }
2209
2210 /**
2211  * g_param_spec_string:
2212  * @name: canonical name of the property specified
2213  * @nick: nick name for the property specified
2214  * @blurb: description of the property specified
2215  * @default_value: (nullable): default value for the property specified
2216  * @flags: flags for the property specified
2217  *
2218  * Creates a new #GParamSpecString instance.
2219  *
2220  * See g_param_spec_internal() for details on property names.
2221  *
2222  * Returns: (transfer full): a newly created parameter specification
2223  */
2224 GParamSpec*
2225 g_param_spec_string (const gchar *name,
2226                      const gchar *nick,
2227                      const gchar *blurb,
2228                      const gchar *default_value,
2229                      GParamFlags  flags)
2230 {
2231   GParamSpecString *sspec = g_param_spec_internal (G_TYPE_PARAM_STRING,
2232                                                    name,
2233                                                    nick,
2234                                                    blurb,
2235                                                    flags);
2236   if (sspec == NULL)
2237     return NULL;
2238
2239   g_free (sspec->default_value);
2240   sspec->default_value = g_strdup (default_value);
2241
2242   return G_PARAM_SPEC (sspec);
2243 }
2244
2245 /**
2246  * g_param_spec_param:
2247  * @name: canonical name of the property specified
2248  * @nick: nick name for the property specified
2249  * @blurb: description of the property specified
2250  * @param_type: a #GType derived from %G_TYPE_PARAM
2251  * @flags: flags for the property specified
2252  *
2253  * Creates a new #GParamSpecParam instance specifying a %G_TYPE_PARAM
2254  * property.
2255  *
2256  * See g_param_spec_internal() for details on property names.
2257  *
2258  * Returns: (transfer full): a newly created parameter specification
2259  */
2260 GParamSpec*
2261 g_param_spec_param (const gchar *name,
2262                     const gchar *nick,
2263                     const gchar *blurb,
2264                     GType        param_type,
2265                     GParamFlags  flags)
2266 {
2267   GParamSpecParam *pspec;
2268
2269   g_return_val_if_fail (G_TYPE_IS_PARAM (param_type), NULL);
2270
2271   pspec = g_param_spec_internal (G_TYPE_PARAM_PARAM,
2272                                  name,
2273                                  nick,
2274                                  blurb,
2275                                  flags);
2276   if (pspec == NULL)
2277     return NULL;
2278
2279   G_PARAM_SPEC (pspec)->value_type = param_type;
2280
2281   return G_PARAM_SPEC (pspec);
2282 }
2283
2284 /**
2285  * g_param_spec_boxed:
2286  * @name: canonical name of the property specified
2287  * @nick: nick name for the property specified
2288  * @blurb: description of the property specified
2289  * @boxed_type: %G_TYPE_BOXED derived type of this property
2290  * @flags: flags for the property specified
2291  *
2292  * Creates a new #GParamSpecBoxed instance specifying a %G_TYPE_BOXED
2293  * derived property.
2294  *
2295  * See g_param_spec_internal() for details on property names.
2296  *
2297  * Returns: (transfer full): a newly created parameter specification
2298  */
2299 GParamSpec*
2300 g_param_spec_boxed (const gchar *name,
2301                     const gchar *nick,
2302                     const gchar *blurb,
2303                     GType        boxed_type,
2304                     GParamFlags  flags)
2305 {
2306   GParamSpecBoxed *bspec;
2307
2308   g_return_val_if_fail (G_TYPE_IS_BOXED (boxed_type), NULL);
2309   g_return_val_if_fail (G_TYPE_IS_VALUE_TYPE (boxed_type), NULL);
2310
2311   bspec = g_param_spec_internal (G_TYPE_PARAM_BOXED,
2312                                  name,
2313                                  nick,
2314                                  blurb,
2315                                  flags);
2316   if (bspec == NULL)
2317     return NULL;
2318
2319   G_PARAM_SPEC (bspec)->value_type = boxed_type;
2320
2321   return G_PARAM_SPEC (bspec);
2322 }
2323
2324 /**
2325  * g_param_spec_pointer:
2326  * @name: canonical name of the property specified
2327  * @nick: nick name for the property specified
2328  * @blurb: description of the property specified
2329  * @flags: flags for the property specified
2330  *
2331  * Creates a new #GParamSpecPointer instance specifying a pointer property.
2332  * Where possible, it is better to use g_param_spec_object() or
2333  * g_param_spec_boxed() to expose memory management information.
2334  *
2335  * See g_param_spec_internal() for details on property names.
2336  *
2337  * Returns: (transfer full): a newly created parameter specification
2338  */
2339 GParamSpec*
2340 g_param_spec_pointer (const gchar *name,
2341                       const gchar *nick,
2342                       const gchar *blurb,
2343                       GParamFlags  flags)
2344 {
2345   GParamSpecPointer *pspec;
2346
2347   pspec = g_param_spec_internal (G_TYPE_PARAM_POINTER,
2348                                  name,
2349                                  nick,
2350                                  blurb,
2351                                  flags);
2352   if (pspec == NULL)
2353     return NULL;
2354
2355   return G_PARAM_SPEC (pspec);
2356 }
2357
2358 /**
2359  * g_param_spec_gtype:
2360  * @name: canonical name of the property specified
2361  * @nick: nick name for the property specified
2362  * @blurb: description of the property specified
2363  * @is_a_type: a #GType whose subtypes are allowed as values
2364  *  of the property (use %G_TYPE_NONE for any type)
2365  * @flags: flags for the property specified
2366  *
2367  * Creates a new #GParamSpecGType instance specifying a
2368  * %G_TYPE_GTYPE property.
2369  *
2370  * See g_param_spec_internal() for details on property names.
2371  *
2372  * Since: 2.10
2373  *
2374  * Returns: (transfer full): a newly created parameter specification
2375  */
2376 GParamSpec*
2377 g_param_spec_gtype (const gchar *name,
2378                     const gchar *nick,
2379                     const gchar *blurb,
2380                     GType        is_a_type,
2381                     GParamFlags  flags)
2382 {
2383   GParamSpecGType *tspec;
2384
2385   tspec = g_param_spec_internal (G_TYPE_PARAM_GTYPE,
2386                                  name,
2387                                  nick,
2388                                  blurb,
2389                                  flags);
2390   if (tspec == NULL)
2391     return NULL;
2392
2393   tspec->is_a_type = is_a_type;
2394
2395   return G_PARAM_SPEC (tspec);
2396 }
2397
2398 /**
2399  * g_param_spec_value_array: (skip)
2400  * @name: canonical name of the property specified
2401  * @nick: nick name for the property specified
2402  * @blurb: description of the property specified
2403  * @element_spec: a #GParamSpec describing the elements contained in
2404  *  arrays of this property, may be %NULL
2405  * @flags: flags for the property specified
2406  *
2407  * Creates a new #GParamSpecValueArray instance specifying a
2408  * %G_TYPE_VALUE_ARRAY property. %G_TYPE_VALUE_ARRAY is a
2409  * %G_TYPE_BOXED type, as such, #GValue structures for this property
2410  * can be accessed with g_value_set_boxed() and g_value_get_boxed().
2411  *
2412  * See g_param_spec_internal() for details on property names.
2413  *
2414  * Returns: a newly created parameter specification
2415  */
2416 GParamSpec*
2417 g_param_spec_value_array (const gchar *name,
2418                           const gchar *nick,
2419                           const gchar *blurb,
2420                           GParamSpec  *element_spec,
2421                           GParamFlags  flags)
2422 {
2423   GParamSpecValueArray *aspec;
2424
2425   if (element_spec)
2426     g_return_val_if_fail (G_IS_PARAM_SPEC (element_spec), NULL);
2427
2428   aspec = g_param_spec_internal (G_TYPE_PARAM_VALUE_ARRAY,
2429                                  name,
2430                                  nick,
2431                                  blurb,
2432                                  flags);
2433   if (aspec == NULL)
2434     return NULL;
2435
2436   if (element_spec)
2437     {
2438       aspec->element_spec = g_param_spec_ref (element_spec);
2439       g_param_spec_sink (element_spec);
2440     }
2441
2442   return G_PARAM_SPEC (aspec);
2443 }
2444
2445 /**
2446  * g_param_spec_object:
2447  * @name: canonical name of the property specified
2448  * @nick: nick name for the property specified
2449  * @blurb: description of the property specified
2450  * @object_type: %G_TYPE_OBJECT derived type of this property
2451  * @flags: flags for the property specified
2452  *
2453  * Creates a new #GParamSpecBoxed instance specifying a %G_TYPE_OBJECT
2454  * derived property.
2455  *
2456  * See g_param_spec_internal() for details on property names.
2457  *
2458  * Returns: (transfer full): a newly created parameter specification
2459  */
2460 GParamSpec*
2461 g_param_spec_object (const gchar *name,
2462                      const gchar *nick,
2463                      const gchar *blurb,
2464                      GType        object_type,
2465                      GParamFlags  flags)
2466 {
2467   GParamSpecObject *ospec;
2468
2469   g_return_val_if_fail (g_type_is_a (object_type, G_TYPE_OBJECT), NULL);
2470
2471   ospec = g_param_spec_internal (G_TYPE_PARAM_OBJECT,
2472                                  name,
2473                                  nick,
2474                                  blurb,
2475                                  flags);
2476   if (ospec == NULL)
2477     return NULL;
2478
2479   G_PARAM_SPEC (ospec)->value_type = object_type;
2480
2481   return G_PARAM_SPEC (ospec);
2482 }
2483
2484 /**
2485  * g_param_spec_override: (skip)
2486  * @name: the name of the property.
2487  * @overridden: The property that is being overridden
2488  *
2489  * Creates a new property of type #GParamSpecOverride. This is used
2490  * to direct operations to another paramspec, and will not be directly
2491  * useful unless you are implementing a new base type similar to GObject.
2492  *
2493  * Since: 2.4
2494  *
2495  * Returns: the newly created #GParamSpec
2496  */
2497 GParamSpec*
2498 g_param_spec_override (const gchar *name,
2499                        GParamSpec  *overridden)
2500 {
2501   GParamSpec *pspec;
2502
2503   g_return_val_if_fail (name != NULL, NULL);
2504   g_return_val_if_fail (G_IS_PARAM_SPEC (overridden), NULL);
2505
2506   /* Dereference further redirections for property that was passed in
2507    */
2508   while (TRUE)
2509     {
2510       GParamSpec *indirect = g_param_spec_get_redirect_target (overridden);
2511       if (indirect)
2512         overridden = indirect;
2513       else
2514         break;
2515     }
2516
2517   pspec = g_param_spec_internal (G_TYPE_PARAM_OVERRIDE,
2518                                  name, NULL, NULL,
2519                                  overridden->flags);
2520   if (pspec == NULL)
2521     return NULL;
2522
2523   pspec->value_type = G_PARAM_SPEC_VALUE_TYPE (overridden);
2524   G_PARAM_SPEC_OVERRIDE (pspec)->overridden = g_param_spec_ref (overridden);
2525
2526   return pspec;
2527 }
2528
2529 /**
2530  * g_param_spec_variant:
2531  * @name: canonical name of the property specified
2532  * @nick: nick name for the property specified
2533  * @blurb: description of the property specified
2534  * @type: a #GVariantType
2535  * @default_value: (nullable) (transfer full): a #GVariant of type @type to
2536  *                 use as the default value, or %NULL
2537  * @flags: flags for the property specified
2538  *
2539  * Creates a new #GParamSpecVariant instance specifying a #GVariant
2540  * property.
2541  *
2542  * If @default_value is floating, it is consumed.
2543  *
2544  * See g_param_spec_internal() for details on property names.
2545  *
2546  * Returns: (transfer full): the newly created #GParamSpec
2547  *
2548  * Since: 2.26
2549  */
2550 GParamSpec*
2551 g_param_spec_variant (const gchar        *name,
2552                       const gchar        *nick,
2553                       const gchar        *blurb,
2554                       const GVariantType *type,
2555                       GVariant           *default_value,
2556                       GParamFlags         flags)
2557 {
2558   GParamSpecVariant *vspec;
2559
2560   g_return_val_if_fail (type != NULL, NULL);
2561   g_return_val_if_fail (default_value == NULL ||
2562                         g_variant_is_of_type (default_value, type), NULL);
2563
2564   vspec = g_param_spec_internal (G_TYPE_PARAM_VARIANT,
2565                                  name,
2566                                  nick,
2567                                  blurb,
2568                                  flags);
2569   if (vspec == NULL)
2570     return NULL;
2571
2572   vspec->type = g_variant_type_copy (type);
2573   if (default_value)
2574     vspec->default_value = g_variant_ref_sink (default_value);
2575
2576   return G_PARAM_SPEC (vspec);
2577 }