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35bf561f5f
glib/gobject/gparamspecs.c
Tim Janik 35bf561f5f add API for chaining: g_signal_chain_from_overridden() and 
Tue Nov 13 23:18:10 2001  Tim Janik  <timj@gtk.org>

        * gsignal.[hc]: add API for chaining:
        g_signal_chain_from_overridden() and g_signal_override_class_closure(),
        implementation yet to come.

        * gtype.[hc], Makefile.am: provide G_LOG_DOMAIN as compile flag.

        * gparam.[hc]: s/g_param_get/g_param_spec_get/ for get_nick,
        get_name and get_blurb, to be consistent with the rest of the
        g_param_spec_*() functions.

        * gparamspecs.[hc]: got rid of bogus GClosure paramspec.
        G_TYPE_CLOSURE is a boxed type already.
2001-11-14 03:02:22 +00:00

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/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* MT safe
*/
#include "gparamspecs.h"
#include "gvaluecollector.h"
#include "gvaluearray.h"
#include <string.h>
#include "../config.h" /* for SIZEOF_LONG */
#define G_FLOAT_EPSILON (1e-30)
#define G_DOUBLE_EPSILON (1e-90)
/* --- param spec functions --- */
static void
param_char_init (GParamSpec *pspec)
{
GParamSpecChar *cspec = G_PARAM_SPEC_CHAR (pspec);
cspec->minimum = 0x7f;
cspec->maximum = 0x80;
cspec->default_value = 0;
}
static void
param_char_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_int = G_PARAM_SPEC_CHAR (pspec)->default_value;
}
static gboolean
param_char_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecChar *cspec = G_PARAM_SPEC_CHAR (pspec);
gint oval = value->data[0].v_int;
value->data[0].v_int = CLAMP (value->data[0].v_int, cspec->minimum, cspec->maximum);
return value->data[0].v_int != oval;
}
static void
param_uchar_init (GParamSpec *pspec)
{
GParamSpecUChar *uspec = G_PARAM_SPEC_UCHAR (pspec);
uspec->minimum = 0;
uspec->maximum = 0xff;
uspec->default_value = 0;
}
static void
param_uchar_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_uint = G_PARAM_SPEC_UCHAR (pspec)->default_value;
}
static gboolean
param_uchar_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecUChar *uspec = G_PARAM_SPEC_UCHAR (pspec);
guint oval = value->data[0].v_uint;
value->data[0].v_uint = CLAMP (value->data[0].v_uint, uspec->minimum, uspec->maximum);
return value->data[0].v_uint != oval;
}
static void
param_boolean_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_int = G_PARAM_SPEC_BOOLEAN (pspec)->default_value;
}
static gboolean
param_boolean_validate (GParamSpec *pspec,
GValue *value)
{
gint oval = value->data[0].v_int;
value->data[0].v_int = value->data[0].v_int != FALSE;
return value->data[0].v_int != oval;
}
static void
param_int_init (GParamSpec *pspec)
{
GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
ispec->minimum = 0x7fffffff;
ispec->maximum = 0x80000000;
ispec->default_value = 0;
}
static void
param_int_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_int = G_PARAM_SPEC_INT (pspec)->default_value;
}
static gboolean
param_int_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecInt *ispec = G_PARAM_SPEC_INT (pspec);
gint oval = value->data[0].v_int;
value->data[0].v_int = CLAMP (value->data[0].v_int, ispec->minimum, ispec->maximum);
return value->data[0].v_int != oval;
}
static gint
param_int_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_int < value2->data[0].v_int)
return -1;
else
return value1->data[0].v_int > value2->data[0].v_int;
}
static void
param_uint_init (GParamSpec *pspec)
{
GParamSpecUInt *uspec = G_PARAM_SPEC_UINT (pspec);
uspec->minimum = 0;
uspec->maximum = 0xffffffff;
uspec->default_value = 0;
}
static void
param_uint_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_uint = G_PARAM_SPEC_UINT (pspec)->default_value;
}
static gboolean
param_uint_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecUInt *uspec = G_PARAM_SPEC_UINT (pspec);
guint oval = value->data[0].v_uint;
value->data[0].v_uint = CLAMP (value->data[0].v_uint, uspec->minimum, uspec->maximum);
return value->data[0].v_uint != oval;
}
static gint
param_uint_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_uint < value2->data[0].v_uint)
return -1;
else
return value1->data[0].v_uint > value2->data[0].v_uint;
}
static void
param_long_init (GParamSpec *pspec)
{
GParamSpecLong *lspec = G_PARAM_SPEC_LONG (pspec);
#if SIZEOF_LONG == 4
lspec->minimum = 0x7fffffff;
lspec->maximum = 0x80000000;
#else /* SIZEOF_LONG != 4 (8) */
lspec->minimum = 0x7fffffffffffffff;
lspec->maximum = 0x8000000000000000;
#endif
lspec->default_value = 0;
}
static void
param_long_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_long = G_PARAM_SPEC_LONG (pspec)->default_value;
}
static gboolean
param_long_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecLong *lspec = G_PARAM_SPEC_LONG (pspec);
glong oval = value->data[0].v_long;
value->data[0].v_long = CLAMP (value->data[0].v_long, lspec->minimum, lspec->maximum);
return value->data[0].v_long != oval;
}
static gint
param_long_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_long < value2->data[0].v_long)
return -1;
else
return value1->data[0].v_long > value2->data[0].v_long;
}
static void
param_ulong_init (GParamSpec *pspec)
{
GParamSpecULong *uspec = G_PARAM_SPEC_ULONG (pspec);
uspec->minimum = 0;
#if SIZEOF_LONG == 4
uspec->maximum = 0xffffffff;
#else /* SIZEOF_LONG != 4 (8) */
uspec->maximum = 0xffffffffffffffff;
#endif
uspec->default_value = 0;
}
static void
param_ulong_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_ulong = G_PARAM_SPEC_ULONG (pspec)->default_value;
}
static gboolean
param_ulong_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecULong *uspec = G_PARAM_SPEC_ULONG (pspec);
gulong oval = value->data[0].v_ulong;
value->data[0].v_ulong = CLAMP (value->data[0].v_ulong, uspec->minimum, uspec->maximum);
return value->data[0].v_ulong != oval;
}
static gint
param_ulong_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_ulong < value2->data[0].v_ulong)
return -1;
else
return value1->data[0].v_ulong > value2->data[0].v_ulong;
}
static void
param_int64_init (GParamSpec *pspec)
{
GParamSpecInt64 *lspec = G_PARAM_SPEC_INT64 (pspec);
lspec->minimum = G_MININT64;
lspec->maximum = G_MAXINT64;
lspec->default_value = 0;
}
static void
param_int64_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_int64 = G_PARAM_SPEC_INT64 (pspec)->default_value;
}
static gboolean
param_int64_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecInt64 *lspec = G_PARAM_SPEC_INT64 (pspec);
gint64 oval = value->data[0].v_int64;
value->data[0].v_int64 = CLAMP (value->data[0].v_int64, lspec->minimum, lspec->maximum);
return value->data[0].v_int64 != oval;
}
static gint
param_int64_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_int64 < value2->data[0].v_int64)
return -1;
else
return value1->data[0].v_int64 > value2->data[0].v_int64;
}
static void
param_uint64_init (GParamSpec *pspec)
{
GParamSpecUInt64 *uspec = G_PARAM_SPEC_UINT64 (pspec);
uspec->minimum = 0;
uspec->maximum = G_MAXUINT64;
uspec->default_value = 0;
}
static void
param_uint64_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_uint64 = G_PARAM_SPEC_UINT64 (pspec)->default_value;
}
static gboolean
param_uint64_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecUInt64 *uspec = G_PARAM_SPEC_UINT64 (pspec);
guint64 oval = value->data[0].v_uint64;
value->data[0].v_uint64 = CLAMP (value->data[0].v_uint64, uspec->minimum, uspec->maximum);
return value->data[0].v_uint64 != oval;
}
static gint
param_uint64_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_uint64 < value2->data[0].v_uint64)
return -1;
else
return value1->data[0].v_uint64 > value2->data[0].v_uint64;
}
static void
param_unichar_init (GParamSpec *pspec)
{
GParamSpecUnichar *uspec = G_PARAM_SPEC_UNICHAR (pspec);
uspec->default_value = 0;
}
static void
param_unichar_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_uint = G_PARAM_SPEC_UNICHAR (pspec)->default_value;
}
static gboolean
param_unichar_validate (GParamSpec *pspec,
GValue *value)
{
gunichar oval = value->data[0].v_uint;
gboolean changed = FALSE;
if (!g_unichar_validate (oval))
{
value->data[0].v_uint = 0;
changed = TRUE;
}
return changed;
}
static gint
param_unichar_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (value1->data[0].v_uint < value2->data[0].v_uint)
return -1;
else
return value1->data[0].v_uint > value2->data[0].v_uint;
}
static void
param_enum_init (GParamSpec *pspec)
{
GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
espec->enum_class = NULL;
espec->default_value = 0;
}
static void
param_enum_finalize (GParamSpec *pspec)
{
GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_ENUM));
if (espec->enum_class)
{
g_type_class_unref (espec->enum_class);
espec->enum_class = NULL;
}
parent_class->finalize (pspec);
}
static void
param_enum_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_long = G_PARAM_SPEC_ENUM (pspec)->default_value;
}
static gboolean
param_enum_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecEnum *espec = G_PARAM_SPEC_ENUM (pspec);
glong oval = value->data[0].v_long;
if (!espec->enum_class ||
!g_enum_get_value (espec->enum_class, value->data[0].v_long))
value->data[0].v_long = espec->default_value;
return value->data[0].v_long != oval;
}
static void
param_flags_init (GParamSpec *pspec)
{
GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
fspec->flags_class = NULL;
fspec->default_value = 0;
}
static void
param_flags_finalize (GParamSpec *pspec)
{
GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_FLAGS));
if (fspec->flags_class)
{
g_type_class_unref (fspec->flags_class);
fspec->flags_class = NULL;
}
parent_class->finalize (pspec);
}
static void
param_flags_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_ulong = G_PARAM_SPEC_FLAGS (pspec)->default_value;
}
static gboolean
param_flags_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecFlags *fspec = G_PARAM_SPEC_FLAGS (pspec);
gulong oval = value->data[0].v_ulong;
if (fspec->flags_class)
value->data[0].v_ulong &= fspec->flags_class->mask;
else
value->data[0].v_ulong = fspec->default_value;
return value->data[0].v_ulong != oval;
}
static void
param_float_init (GParamSpec *pspec)
{
GParamSpecFloat *fspec = G_PARAM_SPEC_FLOAT (pspec);
fspec->minimum = G_MINFLOAT;
fspec->maximum = G_MAXFLOAT;
fspec->default_value = 0;
fspec->epsilon = G_FLOAT_EPSILON;
}
static void
param_float_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_float = G_PARAM_SPEC_FLOAT (pspec)->default_value;
}
static gboolean
param_float_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecFloat *fspec = G_PARAM_SPEC_FLOAT (pspec);
gfloat oval = value->data[0].v_float;
value->data[0].v_float = CLAMP (value->data[0].v_float, fspec->minimum, fspec->maximum);
return value->data[0].v_float != oval;
}
static gint
param_float_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
gfloat epsilon = G_PARAM_SPEC_FLOAT (pspec)->epsilon;
if (value1->data[0].v_float < value2->data[0].v_float)
return - (value2->data[0].v_float - value1->data[0].v_float > epsilon);
else
return value1->data[0].v_float - value2->data[0].v_float > epsilon;
}
static void
param_double_init (GParamSpec *pspec)
{
GParamSpecDouble *dspec = G_PARAM_SPEC_DOUBLE (pspec);
dspec->minimum = G_MINDOUBLE;
dspec->maximum = G_MAXDOUBLE;
dspec->default_value = 0;
dspec->epsilon = G_DOUBLE_EPSILON;
}
static void
param_double_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_double = G_PARAM_SPEC_DOUBLE (pspec)->default_value;
}
static gboolean
param_double_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecDouble *dspec = G_PARAM_SPEC_DOUBLE (pspec);
gdouble oval = value->data[0].v_double;
value->data[0].v_double = CLAMP (value->data[0].v_double, dspec->minimum, dspec->maximum);
return value->data[0].v_double != oval;
}
static gint
param_double_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
gdouble epsilon = G_PARAM_SPEC_DOUBLE (pspec)->epsilon;
if (value1->data[0].v_double < value2->data[0].v_double)
return - (value2->data[0].v_double - value1->data[0].v_double > epsilon);
else
return value1->data[0].v_double - value2->data[0].v_double > epsilon;
}
static void
param_string_init (GParamSpec *pspec)
{
GParamSpecString *sspec = G_PARAM_SPEC_STRING (pspec);
sspec->default_value = NULL;
sspec->cset_first = NULL;
sspec->cset_nth = NULL;
sspec->substitutor = '_';
sspec->null_fold_if_empty = FALSE;
sspec->ensure_non_null = FALSE;
}
static void
param_string_finalize (GParamSpec *pspec)
{
GParamSpecString *sspec = G_PARAM_SPEC_STRING (pspec);
GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_STRING));
g_free (sspec->default_value);
g_free (sspec->cset_first);
g_free (sspec->cset_nth);
sspec->default_value = NULL;
sspec->cset_first = NULL;
sspec->cset_nth = NULL;
parent_class->finalize (pspec);
}
static void
param_string_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_pointer = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
}
static gboolean
param_string_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecString *sspec = G_PARAM_SPEC_STRING (pspec);
gchar *string = value->data[0].v_pointer;
guint changed = 0;
if (string && string[0])
{
gchar *s;
if (sspec->cset_first && !strchr (sspec->cset_first, string[0]))
{
string[0] = sspec->substitutor;
changed++;
}
if (sspec->cset_nth)
for (s = string + 1; *s; s++)
if (!strchr (sspec->cset_nth, *s))
{
*s = sspec->substitutor;
changed++;
}
}
if (sspec->null_fold_if_empty && string && string[0] == 0)
{
g_free (value->data[0].v_pointer);
value->data[0].v_pointer = NULL;
changed++;
string = value->data[0].v_pointer;
}
if (sspec->ensure_non_null && !string)
{
value->data[0].v_pointer = g_strdup ("");
changed++;
string = value->data[0].v_pointer;
}
return changed;
}
static gint
param_string_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
if (!value1->data[0].v_pointer)
return value2->data[0].v_pointer != NULL ? -1 : 0;
else if (!value2->data[0].v_pointer)
return value1->data[0].v_pointer != NULL;
else
return strcmp (value1->data[0].v_pointer, value2->data[0].v_pointer);
}
static void
param_param_init (GParamSpec *pspec)
{
/* GParamSpecParam *spec = G_PARAM_SPEC_PARAM (pspec); */
}
static void
param_param_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_pointer = NULL;
}
static gboolean
param_param_validate (GParamSpec *pspec,
GValue *value)
{
/* GParamSpecParam *spec = G_PARAM_SPEC_PARAM (pspec); */
GParamSpec *param = value->data[0].v_pointer;
guint changed = 0;
if (param && !g_value_type_compatible (G_PARAM_SPEC_TYPE (param), G_PARAM_SPEC_VALUE_TYPE (pspec)))
{
g_param_spec_unref (param);
value->data[0].v_pointer = NULL;
changed++;
}
return changed;
}
static void
param_boxed_init (GParamSpec *pspec)
{
/* GParamSpecBoxed *bspec = G_PARAM_SPEC_BOXED (pspec); */
}
static void
param_boxed_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_pointer = NULL;
}
static gboolean
param_boxed_validate (GParamSpec *pspec,
GValue *value)
{
/* GParamSpecBoxed *bspec = G_PARAM_SPEC_BOXED (pspec); */
guint changed = 0;
/* can't do a whole lot here since we haven't even G_BOXED_TYPE() */
return changed;
}
static gint
param_boxed_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
guint8 *p1 = value1->data[0].v_pointer;
guint8 *p2 = value2->data[0].v_pointer;
/* not much to compare here, try to at least provide stable lesser/greater result */
return p1 < p2 ? -1 : p1 > p2;
}
static void
param_pointer_init (GParamSpec *pspec)
{
/* GParamSpecPointer *spec = G_PARAM_SPEC_POINTER (pspec); */
}
static void
param_pointer_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_pointer = NULL;
}
static gboolean
param_pointer_validate (GParamSpec *pspec,
GValue *value)
{
/* GParamSpecPointer *spec = G_PARAM_SPEC_POINTER (pspec); */
guint changed = 0;
return changed;
}
static gint
param_pointer_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
guint8 *p1 = value1->data[0].v_pointer;
guint8 *p2 = value2->data[0].v_pointer;
/* not much to compare here, try to at least provide stable lesser/greater result */
return p1 < p2 ? -1 : p1 > p2;
}
static void
param_value_array_init (GParamSpec *pspec)
{
GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
aspec->element_spec = NULL;
aspec->fixed_n_elements = 0; /* disable */
}
static inline guint
value_array_ensure_size (GValueArray *value_array,
guint fixed_n_elements)
{
guint changed = 0;
if (fixed_n_elements)
{
while (value_array->n_values < fixed_n_elements)
{
g_value_array_append (value_array, NULL);
changed++;
}
while (value_array->n_values > fixed_n_elements)
{
g_value_array_remove (value_array, value_array->n_values - 1);
changed++;
}
}
return changed;
}
static void
param_value_array_finalize (GParamSpec *pspec)
{
GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_VALUE_ARRAY));
if (aspec->element_spec)
{
g_param_spec_unref (aspec->element_spec);
aspec->element_spec = NULL;
}
parent_class->finalize (pspec);
}
static void
param_value_array_set_default (GParamSpec *pspec,
GValue *value)
{
GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
g_return_if_fail (value->data[0].v_pointer != NULL); /* paranoid */
/* g_value_reset (value); already done */
value_array_ensure_size (value->data[0].v_pointer, aspec->fixed_n_elements);
}
static gboolean
param_value_array_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
GValueArray *value_array = value->data[0].v_pointer;
guint changed = 0;
g_return_val_if_fail (value->data[0].v_pointer != NULL, FALSE); /* paranoid */
/* ensure array size validity */
changed += value_array_ensure_size (value_array, aspec->fixed_n_elements);
/* ensure array values validity against a present element spec */
if (aspec->element_spec)
{
GParamSpec *element_spec = aspec->element_spec;
guint i;
for (i = 0; i < value_array->n_values; i++)
{
GValue *element = value_array->values + i;
/* need to fixup value type, or ensure that the array value is initialized at all */
if (!g_value_type_compatible (G_VALUE_TYPE (element), G_PARAM_SPEC_VALUE_TYPE (element_spec)))
{
if (G_VALUE_TYPE (element) != 0)
g_value_unset (element);
g_value_init (element, G_PARAM_SPEC_VALUE_TYPE (element_spec));
g_param_value_set_default (element_spec, element);
changed++;
}
/* validate array value against element_spec */
changed += g_param_value_validate (element_spec, element);
}
}
return changed;
}
static gint
param_value_array_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
GParamSpecValueArray *aspec = G_PARAM_SPEC_VALUE_ARRAY (pspec);
GValueArray *value_array1 = value1->data[0].v_pointer;
GValueArray *value_array2 = value2->data[0].v_pointer;
g_return_val_if_fail (value1->data[0].v_pointer != NULL, -1); /* paranoid */
g_return_val_if_fail (value2->data[0].v_pointer != NULL, 1); /* paranoid */
if (value_array1->n_values != value_array2->n_values)
return value_array1->n_values < value_array2->n_values ? -1 : 1;
else if (!aspec->element_spec)
{
/* we need an element specification for comparisons, so there's not much
* to compare here, try to at least provide stable lesser/greater result
*/
return value_array1->n_values < value_array2->n_values ? -1 : value_array1->n_values > value_array2->n_values;
}
else /* value_array1->n_values == value_array2->n_values */
{
guint i;
for (i = 0; i < value_array1->n_values; i++)
{
GValue *element1 = value_array1->values + i;
GValue *element2 = value_array2->values + i;
gint cmp;
/* need corresponding element types, provide stable result otherwise */
if (G_VALUE_TYPE (element1) != G_VALUE_TYPE (element2))
return G_VALUE_TYPE (element1) < G_VALUE_TYPE (element2) ? -1 : 1;
cmp = g_param_values_cmp (aspec->element_spec, element1, element2);
if (cmp)
return cmp;
}
return 0;
}
}
static void
param_object_init (GParamSpec *pspec)
{
/* GParamSpecObject *ospec = G_PARAM_SPEC_OBJECT (pspec); */
}
static void
param_object_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_pointer = NULL;
}
static gboolean
param_object_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecObject *ospec = G_PARAM_SPEC_OBJECT (pspec);
GObject *object = value->data[0].v_pointer;
guint changed = 0;
if (object && !g_value_type_compatible (G_OBJECT_TYPE (object), G_PARAM_SPEC_VALUE_TYPE (ospec)))
{
g_object_unref (object);
value->data[0].v_pointer = NULL;
changed++;
}
return changed;
}
static gint
param_object_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
guint8 *p1 = value1->data[0].v_pointer;
guint8 *p2 = value2->data[0].v_pointer;
/* not much to compare here, try to at least provide stable lesser/greater result */
return p1 < p2 ? -1 : p1 > p2;
}
/* --- type initialization --- */
void
g_param_spec_types_init (void) /* sync with gtype.c */
{
GType type;
/* G_TYPE_PARAM_CHAR
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecChar), /* instance_size */
16, /* n_preallocs */
param_char_init, /* instance_init */
G_TYPE_CHAR, /* value_type */
NULL, /* finalize */
param_char_set_default, /* value_set_default */
param_char_validate, /* value_validate */
param_int_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamChar", &pspec_info);
g_assert (type == G_TYPE_PARAM_CHAR);
}
/* G_TYPE_PARAM_UCHAR
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecUChar), /* instance_size */
16, /* n_preallocs */
param_uchar_init, /* instance_init */
G_TYPE_UCHAR, /* value_type */
NULL, /* finalize */
param_uchar_set_default, /* value_set_default */
param_uchar_validate, /* value_validate */
param_uint_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamUChar", &pspec_info);
g_assert (type == G_TYPE_PARAM_UCHAR);
}
/* G_TYPE_PARAM_BOOLEAN
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecBoolean), /* instance_size */
16, /* n_preallocs */
NULL, /* instance_init */
G_TYPE_BOOLEAN, /* value_type */
NULL, /* finalize */
param_boolean_set_default, /* value_set_default */
param_boolean_validate, /* value_validate */
param_int_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamBoolean", &pspec_info);
g_assert (type == G_TYPE_PARAM_BOOLEAN);
}
/* G_TYPE_PARAM_INT
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecInt), /* instance_size */
16, /* n_preallocs */
param_int_init, /* instance_init */
G_TYPE_INT, /* value_type */
NULL, /* finalize */
param_int_set_default, /* value_set_default */
param_int_validate, /* value_validate */
param_int_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamInt", &pspec_info);
g_assert (type == G_TYPE_PARAM_INT);
}
/* G_TYPE_PARAM_UINT
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecUInt), /* instance_size */
16, /* n_preallocs */
param_uint_init, /* instance_init */
G_TYPE_UINT, /* value_type */
NULL, /* finalize */
param_uint_set_default, /* value_set_default */
param_uint_validate, /* value_validate */
param_uint_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamUInt", &pspec_info);
g_assert (type == G_TYPE_PARAM_UINT);
}
/* G_TYPE_PARAM_LONG
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecLong), /* instance_size */
16, /* n_preallocs */
param_long_init, /* instance_init */
G_TYPE_LONG, /* value_type */
NULL, /* finalize */
param_long_set_default, /* value_set_default */
param_long_validate, /* value_validate */
param_long_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamLong", &pspec_info);
g_assert (type == G_TYPE_PARAM_LONG);
}
/* G_TYPE_PARAM_ULONG
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecULong), /* instance_size */
16, /* n_preallocs */
param_ulong_init, /* instance_init */
G_TYPE_ULONG, /* value_type */
NULL, /* finalize */
param_ulong_set_default, /* value_set_default */
param_ulong_validate, /* value_validate */
param_ulong_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamULong", &pspec_info);
g_assert (type == G_TYPE_PARAM_ULONG);
}
/* G_TYPE_PARAM_INT64
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecInt64), /* instance_size */
16, /* n_preallocs */
param_int64_init, /* instance_init */
G_TYPE_INT64, /* value_type */
NULL, /* finalize */
param_int64_set_default, /* value_set_default */
param_int64_validate, /* value_validate */
param_int64_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamInt64", &pspec_info);
g_assert (type == G_TYPE_PARAM_INT64);
}
/* G_TYPE_PARAM_UINT64
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecUInt64), /* instance_size */
16, /* n_preallocs */
param_uint64_init, /* instance_init */
G_TYPE_UINT64, /* value_type */
NULL, /* finalize */
param_uint64_set_default, /* value_set_default */
param_uint64_validate, /* value_validate */
param_uint64_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamUInt64", &pspec_info);
g_assert (type == G_TYPE_PARAM_UINT64);
}
/* G_TYPE_PARAM_UNICHAR
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecUnichar), /* instance_size */
16, /* n_preallocs */
param_unichar_init, /* instance_init */
G_TYPE_UINT, /* value_type */
NULL, /* finalize */
param_unichar_set_default, /* value_set_default */
param_unichar_validate, /* value_validate */
param_unichar_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamUnichar", &pspec_info);
g_assert (type == G_TYPE_PARAM_UNICHAR);
}
/* G_TYPE_PARAM_ENUM
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecEnum), /* instance_size */
16, /* n_preallocs */
param_enum_init, /* instance_init */
G_TYPE_ENUM, /* value_type */
param_enum_finalize, /* finalize */
param_enum_set_default, /* value_set_default */
param_enum_validate, /* value_validate */
param_long_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamEnum", &pspec_info);
g_assert (type == G_TYPE_PARAM_ENUM);
}
/* G_TYPE_PARAM_FLAGS
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecFlags), /* instance_size */
16, /* n_preallocs */
param_flags_init, /* instance_init */
G_TYPE_FLAGS, /* value_type */
param_flags_finalize, /* finalize */
param_flags_set_default, /* value_set_default */
param_flags_validate, /* value_validate */
param_ulong_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamFlags", &pspec_info);
g_assert (type == G_TYPE_PARAM_FLAGS);
}
/* G_TYPE_PARAM_FLOAT
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecFloat), /* instance_size */
16, /* n_preallocs */
param_float_init, /* instance_init */
G_TYPE_FLOAT, /* value_type */
NULL, /* finalize */
param_float_set_default, /* value_set_default */
param_float_validate, /* value_validate */
param_float_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamFloat", &pspec_info);
g_assert (type == G_TYPE_PARAM_FLOAT);
}
/* G_TYPE_PARAM_DOUBLE
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecDouble), /* instance_size */
16, /* n_preallocs */
param_double_init, /* instance_init */
G_TYPE_DOUBLE, /* value_type */
NULL, /* finalize */
param_double_set_default, /* value_set_default */
param_double_validate, /* value_validate */
param_double_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamDouble", &pspec_info);
g_assert (type == G_TYPE_PARAM_DOUBLE);
}
/* G_TYPE_PARAM_STRING
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecString), /* instance_size */
16, /* n_preallocs */
param_string_init, /* instance_init */
G_TYPE_STRING, /* value_type */
param_string_finalize, /* finalize */
param_string_set_default, /* value_set_default */
param_string_validate, /* value_validate */
param_string_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamString", &pspec_info);
g_assert (type == G_TYPE_PARAM_STRING);
}
/* G_TYPE_PARAM_PARAM
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecParam), /* instance_size */
16, /* n_preallocs */
param_param_init, /* instance_init */
G_TYPE_PARAM, /* value_type */
NULL, /* finalize */
param_param_set_default, /* value_set_default */
param_param_validate, /* value_validate */
param_pointer_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamParam", &pspec_info);
g_assert (type == G_TYPE_PARAM_PARAM);
}
/* G_TYPE_PARAM_BOXED
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecBoxed), /* instance_size */
4, /* n_preallocs */
param_boxed_init, /* instance_init */
G_TYPE_BOXED, /* value_type */
NULL, /* finalize */
param_boxed_set_default, /* value_set_default */
param_boxed_validate, /* value_validate */
param_boxed_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamBoxed", &pspec_info);
g_assert (type == G_TYPE_PARAM_BOXED);
}
/* G_TYPE_PARAM_POINTER
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecPointer), /* instance_size */
0, /* n_preallocs */
param_pointer_init, /* instance_init */
G_TYPE_POINTER, /* value_type */
NULL, /* finalize */
param_pointer_set_default, /* value_set_default */
param_pointer_validate, /* value_validate */
param_pointer_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamPointer", &pspec_info);
g_assert (type == G_TYPE_PARAM_POINTER);
}
/* G_TYPE_PARAM_VALUE_ARRAY
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecValueArray), /* instance_size */
0, /* n_preallocs */
param_value_array_init, /* instance_init */
G_TYPE_VALUE_ARRAY, /* value_type */
param_value_array_finalize, /* finalize */
param_value_array_set_default, /* value_set_default */
param_value_array_validate, /* value_validate */
param_value_array_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamValueArray", &pspec_info);
g_assert (type == G_TYPE_PARAM_VALUE_ARRAY);
}
/* G_TYPE_PARAM_OBJECT
*/
{
static const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecObject), /* instance_size */
16, /* n_preallocs */
param_object_init, /* instance_init */
G_TYPE_OBJECT, /* value_type */
NULL, /* finalize */
param_object_set_default, /* value_set_default */
param_object_validate, /* value_validate */
param_object_values_cmp, /* values_cmp */
};
type = g_param_type_register_static ("GParamObject", &pspec_info);
g_assert (type == G_TYPE_PARAM_OBJECT);
}
}
/* --- GParamSpec initialization --- */
GParamSpec*
g_param_spec_char (const gchar *name,
const gchar *nick,
const gchar *blurb,
gint8 minimum,
gint8 maximum,
gint8 default_value,
GParamFlags flags)
{
GParamSpecChar *cspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
cspec = g_param_spec_internal (G_TYPE_PARAM_CHAR,
name,
nick,
blurb,
flags);
cspec->minimum = minimum;
cspec->maximum = maximum;
cspec->default_value = default_value;
return G_PARAM_SPEC (cspec);
}
GParamSpec*
g_param_spec_uchar (const gchar *name,
const gchar *nick,
const gchar *blurb,
guint8 minimum,
guint8 maximum,
guint8 default_value,
GParamFlags flags)
{
GParamSpecUChar *uspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
uspec = g_param_spec_internal (G_TYPE_PARAM_UCHAR,
name,
nick,
blurb,
flags);
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
GParamSpec*
g_param_spec_boolean (const gchar *name,
const gchar *nick,
const gchar *blurb,
gboolean default_value,
GParamFlags flags)
{
GParamSpecBoolean *bspec;
g_return_val_if_fail (default_value == TRUE || default_value == FALSE, NULL);
bspec = g_param_spec_internal (G_TYPE_PARAM_BOOLEAN,
name,
nick,
blurb,
flags);
bspec->default_value = default_value;
return G_PARAM_SPEC (bspec);
}
GParamSpec*
g_param_spec_int (const gchar *name,
const gchar *nick,
const gchar *blurb,
gint minimum,
gint maximum,
gint default_value,
GParamFlags flags)
{
GParamSpecInt *ispec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
ispec = g_param_spec_internal (G_TYPE_PARAM_INT,
name,
nick,
blurb,
flags);
ispec->minimum = minimum;
ispec->maximum = maximum;
ispec->default_value = default_value;
return G_PARAM_SPEC (ispec);
}
GParamSpec*
g_param_spec_uint (const gchar *name,
const gchar *nick,
const gchar *blurb,
guint minimum,
guint maximum,
guint default_value,
GParamFlags flags)
{
GParamSpecUInt *uspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
uspec = g_param_spec_internal (G_TYPE_PARAM_UINT,
name,
nick,
blurb,
flags);
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
GParamSpec*
g_param_spec_long (const gchar *name,
const gchar *nick,
const gchar *blurb,
glong minimum,
glong maximum,
glong default_value,
GParamFlags flags)
{
GParamSpecLong *lspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
lspec = g_param_spec_internal (G_TYPE_PARAM_LONG,
name,
nick,
blurb,
flags);
lspec->minimum = minimum;
lspec->maximum = maximum;
lspec->default_value = default_value;
return G_PARAM_SPEC (lspec);
}
GParamSpec*
g_param_spec_ulong (const gchar *name,
const gchar *nick,
const gchar *blurb,
gulong minimum,
gulong maximum,
gulong default_value,
GParamFlags flags)
{
GParamSpecULong *uspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
uspec = g_param_spec_internal (G_TYPE_PARAM_ULONG,
name,
nick,
blurb,
flags);
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
GParamSpec*
g_param_spec_int64 (const gchar *name,
const gchar *nick,
const gchar *blurb,
gint64 minimum,
gint64 maximum,
gint64 default_value,
GParamFlags flags)
{
GParamSpecInt64 *lspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
lspec = g_param_spec_internal (G_TYPE_PARAM_INT64,
name,
nick,
blurb,
flags);
lspec->minimum = minimum;
lspec->maximum = maximum;
lspec->default_value = default_value;
return G_PARAM_SPEC (lspec);
}
GParamSpec*
g_param_spec_uint64 (const gchar *name,
const gchar *nick,
const gchar *blurb,
guint64 minimum,
guint64 maximum,
guint64 default_value,
GParamFlags flags)
{
GParamSpecUInt64 *uspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
uspec = g_param_spec_internal (G_TYPE_PARAM_UINT64,
name,
nick,
blurb,
flags);
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
GParamSpec*
g_param_spec_unichar (const gchar *name,
const gchar *nick,
const gchar *blurb,
gunichar default_value,
GParamFlags flags)
{
GParamSpecUnichar *uspec;
uspec = g_param_spec_internal (G_TYPE_PARAM_UNICHAR,
name,
nick,
blurb,
flags);
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
GParamSpec*
g_param_spec_enum (const gchar *name,
const gchar *nick,
const gchar *blurb,
GType enum_type,
gint default_value,
GParamFlags flags)
{
GParamSpecEnum *espec;
GEnumClass *enum_class;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
enum_class = g_type_class_ref (enum_type);
g_return_val_if_fail (g_enum_get_value (enum_class, default_value) != NULL, NULL);
espec = g_param_spec_internal (G_TYPE_PARAM_ENUM,
name,
nick,
blurb,
flags);
espec->enum_class = enum_class;
espec->default_value = default_value;
G_PARAM_SPEC (espec)->value_type = enum_type;
return G_PARAM_SPEC (espec);
}
GParamSpec*
g_param_spec_flags (const gchar *name,
const gchar *nick,
const gchar *blurb,
GType flags_type,
guint default_value,
GParamFlags flags)
{
GParamSpecFlags *fspec;
GFlagsClass *flags_class;
g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
flags_class = g_type_class_ref (flags_type);
g_return_val_if_fail ((default_value & flags_class->mask) == default_value, NULL);
fspec = g_param_spec_internal (G_TYPE_PARAM_FLAGS,
name,
nick,
blurb,
flags);
fspec->flags_class = flags_class;
fspec->default_value = default_value;
G_PARAM_SPEC (fspec)->value_type = flags_type;
return G_PARAM_SPEC (fspec);
}
GParamSpec*
g_param_spec_float (const gchar *name,
const gchar *nick,
const gchar *blurb,
gfloat minimum,
gfloat maximum,
gfloat default_value,
GParamFlags flags)
{
GParamSpecFloat *fspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
fspec = g_param_spec_internal (G_TYPE_PARAM_FLOAT,
name,
nick,
blurb,
flags);
fspec->minimum = minimum;
fspec->maximum = maximum;
fspec->default_value = default_value;
return G_PARAM_SPEC (fspec);
}
GParamSpec*
g_param_spec_double (const gchar *name,
const gchar *nick,
const gchar *blurb,
gdouble minimum,
gdouble maximum,
gdouble default_value,
GParamFlags flags)
{
GParamSpecDouble *dspec;
g_return_val_if_fail (default_value >= minimum && default_value <= maximum, NULL);
dspec = g_param_spec_internal (G_TYPE_PARAM_DOUBLE,
name,
nick,
blurb,
flags);
dspec->minimum = minimum;
dspec->maximum = maximum;
dspec->default_value = default_value;
return G_PARAM_SPEC (dspec);
}
GParamSpec*
g_param_spec_string (const gchar *name,
const gchar *nick,
const gchar *blurb,
const gchar *default_value,
GParamFlags flags)
{
GParamSpecString *sspec = g_param_spec_internal (G_TYPE_PARAM_STRING,
name,
nick,
blurb,
flags);
g_free (sspec->default_value);
sspec->default_value = g_strdup (default_value);
return G_PARAM_SPEC (sspec);
}
GParamSpec*
g_param_spec_param (const gchar *name,
const gchar *nick,
const gchar *blurb,
GType param_type,
GParamFlags flags)
{
GParamSpecParam *pspec;
g_return_val_if_fail (G_TYPE_IS_PARAM (param_type), NULL);
pspec = g_param_spec_internal (G_TYPE_PARAM_PARAM,
name,
nick,
blurb,
flags);
G_PARAM_SPEC (pspec)->value_type = param_type;
return G_PARAM_SPEC (pspec);
}
GParamSpec*
g_param_spec_boxed (const gchar *name,
const gchar *nick,
const gchar *blurb,
GType boxed_type,
GParamFlags flags)
{
GParamSpecBoxed *bspec;
g_return_val_if_fail (G_TYPE_IS_BOXED (boxed_type), NULL);
g_return_val_if_fail (G_TYPE_IS_VALUE_TYPE (boxed_type), NULL);
bspec = g_param_spec_internal (G_TYPE_PARAM_BOXED,
name,
nick,
blurb,
flags);
G_PARAM_SPEC (bspec)->value_type = boxed_type;
return G_PARAM_SPEC (bspec);
}
GParamSpec*
g_param_spec_pointer (const gchar *name,
const gchar *nick,
const gchar *blurb,
GParamFlags flags)
{
GParamSpecPointer *pspec;
pspec = g_param_spec_internal (G_TYPE_PARAM_POINTER,
name,
nick,
blurb,
flags);
return G_PARAM_SPEC (pspec);
}
GParamSpec*
g_param_spec_value_array (const gchar *name,
const gchar *nick,
const gchar *blurb,
GParamSpec *element_spec,
GParamFlags flags)
{
GParamSpecValueArray *aspec;
if (element_spec)
g_return_val_if_fail (G_IS_PARAM_SPEC (element_spec), NULL);
aspec = g_param_spec_internal (G_TYPE_PARAM_VALUE_ARRAY,
name,
nick,
blurb,
flags);
if (element_spec)
{
aspec->element_spec = g_param_spec_ref (element_spec);
g_param_spec_sink (element_spec);
}
return G_PARAM_SPEC (aspec);
}
GParamSpec*
g_param_spec_object (const gchar *name,
const gchar *nick,
const gchar *blurb,
GType object_type,
GParamFlags flags)
{
GParamSpecObject *ospec;
g_return_val_if_fail (g_type_is_a (object_type, G_TYPE_OBJECT), NULL);
ospec = g_param_spec_internal (G_TYPE_PARAM_OBJECT,
name,
nick,
blurb,
flags);
G_PARAM_SPEC (ospec)->value_type = object_type;
return G_PARAM_SPEC (ospec);
}
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