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glib/gobject/gparamspecs.c
Philip Withnall 648986a290 glib: Avoid redefining GLIB_DISABLE_DEPRECATION_WARNINGS 
It may be defined by the environment (we document that as being allowed)
— if so, individual files should not try to redefine it, as that causes
a preprocessor warning.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
2020-07-27 15:41:09 +01:00

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/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 1997-1999, 2000-2001 Tim Janik and Red Hat, Inc.
* Copyright (C) 2010 Christian Persch
*
* 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 2.1 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, see <http://www.gnu.org/licenses/>.
*/
/*
* MT safe
*/
#include "config.h"
#include <string.h>
#ifndef GLIB_DISABLE_DEPRECATION_WARNINGS
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#endif
#include "gparamspecs.h"
#include "gtype-private.h"
#include "gvaluecollector.h"
#include "gvaluearray.h"
/**
* SECTION:param_value_types
* @short_description: Standard Parameter and Value Types
* @see_also: #GParamSpec, #GValue, g_object_class_install_property().
* @title: Parameters and Values
*
* #GValue provides an abstract container structure which can be
* copied, transformed and compared while holding a value of any
* (derived) type, which is registered as a #GType with a
* #GTypeValueTable in its #GTypeInfo structure. Parameter
* specifications for most value types can be created as #GParamSpec
* derived instances, to implement e.g. #GObject properties which
* operate on #GValue containers.
*
* Parameter names need to start with a letter (a-z or A-Z). Subsequent
* characters can be letters, numbers or a '-'.
* All other characters are replaced by a '-' during construction.
*/
#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_MAXFLOAT;
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_MAXDOUBLE;
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]))
{
if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
{
value->data[0].v_pointer = g_strdup (string);
string = value->data[0].v_pointer;
value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
}
string[0] = sspec->substitutor;
changed++;
}
if (sspec->cset_nth)
for (s = string + 1; *s; s++)
if (!strchr (sspec->cset_nth, *s))
{
if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
{
value->data[0].v_pointer = g_strdup (string);
s = (gchar*) value->data[0].v_pointer + (s - string);
string = value->data[0].v_pointer;
value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
}
*s = sspec->substitutor;
changed++;
}
}
if (sspec->null_fold_if_empty && string && string[0] == 0)
{
if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
g_free (value->data[0].v_pointer);
else
value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
value->data[0].v_pointer = NULL;
changed++;
string = value->data[0].v_pointer;
}
if (sspec->ensure_non_null && !string)
{
value->data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
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);
if (!value->data[0].v_pointer && aspec->fixed_n_elements)
value->data[0].v_pointer = g_value_array_new (aspec->fixed_n_elements);
if (value->data[0].v_pointer)
{
/* 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;
if (!value->data[0].v_pointer && aspec->fixed_n_elements)
value->data[0].v_pointer = g_value_array_new (aspec->fixed_n_elements);
if (value->data[0].v_pointer)
{
/* 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++;
}
else
{
/* 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;
if (!value_array1 || !value_array2)
return value_array2 ? -1 : value_array1 != value_array2;
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;
}
static void
param_override_init (GParamSpec *pspec)
{
/* GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec); */
}
static void
param_override_finalize (GParamSpec *pspec)
{
GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_OVERRIDE));
if (ospec->overridden)
{
g_param_spec_unref (ospec->overridden);
ospec->overridden = NULL;
}
parent_class->finalize (pspec);
}
static void
param_override_set_default (GParamSpec *pspec,
GValue *value)
{
GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
g_param_value_set_default (ospec->overridden, value);
}
static gboolean
param_override_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
return g_param_value_validate (ospec->overridden, value);
}
static gint
param_override_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
GParamSpecOverride *ospec = G_PARAM_SPEC_OVERRIDE (pspec);
return g_param_values_cmp (ospec->overridden, value1, value2);
}
static void
param_gtype_init (GParamSpec *pspec)
{
}
static void
param_gtype_set_default (GParamSpec *pspec,
GValue *value)
{
GParamSpecGType *tspec = G_PARAM_SPEC_GTYPE (pspec);
value->data[0].v_pointer = GSIZE_TO_POINTER (tspec->is_a_type);
}
static gboolean
param_gtype_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecGType *tspec = G_PARAM_SPEC_GTYPE (pspec);
GType gtype = GPOINTER_TO_SIZE (value->data[0].v_pointer);
guint changed = 0;
if (tspec->is_a_type != G_TYPE_NONE && !g_type_is_a (gtype, tspec->is_a_type))
{
value->data[0].v_pointer = GSIZE_TO_POINTER (tspec->is_a_type);
changed++;
}
return changed;
}
static gint
param_gtype_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
GType p1 = GPOINTER_TO_SIZE (value1->data[0].v_pointer);
GType p2 = GPOINTER_TO_SIZE (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_variant_init (GParamSpec *pspec)
{
GParamSpecVariant *vspec = G_PARAM_SPEC_VARIANT (pspec);
vspec->type = NULL;
vspec->default_value = NULL;
}
static void
param_variant_finalize (GParamSpec *pspec)
{
GParamSpecVariant *vspec = G_PARAM_SPEC_VARIANT (pspec);
GParamSpecClass *parent_class = g_type_class_peek (g_type_parent (G_TYPE_PARAM_VARIANT));
if (vspec->default_value)
g_variant_unref (vspec->default_value);
g_variant_type_free (vspec->type);
parent_class->finalize (pspec);
}
static void
param_variant_set_default (GParamSpec *pspec,
GValue *value)
{
value->data[0].v_pointer = G_PARAM_SPEC_VARIANT (pspec)->default_value;
value->data[1].v_uint |= G_VALUE_NOCOPY_CONTENTS;
}
static gboolean
param_variant_validate (GParamSpec *pspec,
GValue *value)
{
GParamSpecVariant *vspec = G_PARAM_SPEC_VARIANT (pspec);
GVariant *variant = value->data[0].v_pointer;
if ((variant == NULL && vspec->default_value != NULL) ||
(variant != NULL && !g_variant_is_of_type (variant, vspec->type)))
{
g_param_value_set_default (pspec, value);
return TRUE;
}
return FALSE;
}
/* g_variant_compare() can only be used with scalar types. */
static gboolean
variant_is_incomparable (GVariant *v)
{
GVariantClass v_class = g_variant_classify (v);
return (v_class == G_VARIANT_CLASS_HANDLE ||
v_class == G_VARIANT_CLASS_VARIANT ||
v_class == G_VARIANT_CLASS_MAYBE||
v_class == G_VARIANT_CLASS_ARRAY ||
v_class == G_VARIANT_CLASS_TUPLE ||
v_class == G_VARIANT_CLASS_DICT_ENTRY);
}
static gint
param_variant_values_cmp (GParamSpec *pspec,
const GValue *value1,
const GValue *value2)
{
GVariant *v1 = value1->data[0].v_pointer;
GVariant *v2 = value2->data[0].v_pointer;
if (v1 == NULL && v2 == NULL)
return 0;
else if (v1 == NULL && v2 != NULL)
return -1;
else if (v1 != NULL && v2 == NULL)
return 1;
if (!g_variant_type_equal (g_variant_get_type (v1), g_variant_get_type (v2)) ||
variant_is_incomparable (v1) ||
variant_is_incomparable (v2))
return g_variant_equal (v1, v2) ? 0 : (v1 < v2 ? -1 : 1);
return g_variant_compare (v1, v2);
}
/* --- type initialization --- */
GType *g_param_spec_types = NULL;
void
_g_param_spec_types_init (void)
{
const guint n_types = 23;
GType type, *spec_types;
#ifndef G_DISABLE_ASSERT
GType *spec_types_bound;
#endif
g_param_spec_types = g_new0 (GType, n_types);
spec_types = g_param_spec_types;
#ifndef G_DISABLE_ASSERT
spec_types_bound = g_param_spec_types + n_types;
#endif
/* G_TYPE_PARAM_CHAR
*/
{
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 (g_intern_static_string ("GParamChar"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_CHAR);
}
/* G_TYPE_PARAM_UCHAR
*/
{
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 (g_intern_static_string ("GParamUChar"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_UCHAR);
}
/* G_TYPE_PARAM_BOOLEAN
*/
{
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 (g_intern_static_string ("GParamBoolean"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_BOOLEAN);
}
/* G_TYPE_PARAM_INT
*/
{
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 (g_intern_static_string ("GParamInt"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_INT);
}
/* G_TYPE_PARAM_UINT
*/
{
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 (g_intern_static_string ("GParamUInt"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_UINT);
}
/* G_TYPE_PARAM_LONG
*/
{
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 (g_intern_static_string ("GParamLong"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_LONG);
}
/* G_TYPE_PARAM_ULONG
*/
{
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 (g_intern_static_string ("GParamULong"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_ULONG);
}
/* G_TYPE_PARAM_INT64
*/
{
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 (g_intern_static_string ("GParamInt64"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_INT64);
}
/* G_TYPE_PARAM_UINT64
*/
{
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 (g_intern_static_string ("GParamUInt64"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_UINT64);
}
/* G_TYPE_PARAM_UNICHAR
*/
{
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 (g_intern_static_string ("GParamUnichar"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_UNICHAR);
}
/* G_TYPE_PARAM_ENUM
*/
{
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 (g_intern_static_string ("GParamEnum"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_ENUM);
}
/* G_TYPE_PARAM_FLAGS
*/
{
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 (g_intern_static_string ("GParamFlags"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_FLAGS);
}
/* G_TYPE_PARAM_FLOAT
*/
{
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 (g_intern_static_string ("GParamFloat"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_FLOAT);
}
/* G_TYPE_PARAM_DOUBLE
*/
{
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 (g_intern_static_string ("GParamDouble"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_DOUBLE);
}
/* G_TYPE_PARAM_STRING
*/
{
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 (g_intern_static_string ("GParamString"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_STRING);
}
/* G_TYPE_PARAM_PARAM
*/
{
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 (g_intern_static_string ("GParamParam"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_PARAM);
}
/* G_TYPE_PARAM_BOXED
*/
{
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 (g_intern_static_string ("GParamBoxed"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_BOXED);
}
/* G_TYPE_PARAM_POINTER
*/
{
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 (g_intern_static_string ("GParamPointer"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_POINTER);
}
/* G_TYPE_PARAM_VALUE_ARRAY
*/
{
/* const */ GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecValueArray), /* instance_size */
0, /* n_preallocs */
param_value_array_init, /* instance_init */
0xdeadbeef, /* value_type, assigned further down */
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 */
};
pspec_info.value_type = G_TYPE_VALUE_ARRAY;
type = g_param_type_register_static (g_intern_static_string ("GParamValueArray"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_VALUE_ARRAY);
}
/* G_TYPE_PARAM_OBJECT
*/
{
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 (g_intern_static_string ("GParamObject"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_OBJECT);
}
/* G_TYPE_PARAM_OVERRIDE
*/
{
const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecOverride), /* instance_size */
16, /* n_preallocs */
param_override_init, /* instance_init */
G_TYPE_NONE, /* value_type */
param_override_finalize, /* finalize */
param_override_set_default, /* value_set_default */
param_override_validate, /* value_validate */
param_override_values_cmp, /* values_cmp */
};
type = g_param_type_register_static (g_intern_static_string ("GParamOverride"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_OVERRIDE);
}
/* G_TYPE_PARAM_GTYPE
*/
{
GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecGType), /* instance_size */
0, /* n_preallocs */
param_gtype_init, /* instance_init */
0xdeadbeef, /* value_type, assigned further down */
NULL, /* finalize */
param_gtype_set_default, /* value_set_default */
param_gtype_validate, /* value_validate */
param_gtype_values_cmp, /* values_cmp */
};
pspec_info.value_type = G_TYPE_GTYPE;
type = g_param_type_register_static (g_intern_static_string ("GParamGType"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_GTYPE);
}
/* G_TYPE_PARAM_VARIANT
*/
{
const GParamSpecTypeInfo pspec_info = {
sizeof (GParamSpecVariant), /* instance_size */
0, /* n_preallocs */
param_variant_init, /* instance_init */
G_TYPE_VARIANT, /* value_type */
param_variant_finalize, /* finalize */
param_variant_set_default, /* value_set_default */
param_variant_validate, /* value_validate */
param_variant_values_cmp, /* values_cmp */
};
type = g_param_type_register_static (g_intern_static_string ("GParamVariant"), &pspec_info);
*spec_types++ = type;
g_assert (type == G_TYPE_PARAM_VARIANT);
}
g_assert (spec_types == spec_types_bound);
}
/* --- GParamSpec initialization --- */
/**
* g_param_spec_char:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecChar instance specifying a %G_TYPE_CHAR property.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (cspec == NULL)
return NULL;
cspec->minimum = minimum;
cspec->maximum = maximum;
cspec->default_value = default_value;
return G_PARAM_SPEC (cspec);
}
/**
* g_param_spec_uchar:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecUChar instance specifying a %G_TYPE_UCHAR property.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (uspec == NULL)
return NULL;
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
/**
* g_param_spec_boolean:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecBoolean instance specifying a %G_TYPE_BOOLEAN
* property. In many cases, it may be more appropriate to use an enum with
* g_param_spec_enum(), both to improve code clarity by using explicitly named
* values, and to allow for more values to be added in future without breaking
* API.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (bspec == NULL)
return NULL;
bspec->default_value = default_value;
return G_PARAM_SPEC (bspec);
}
/**
* g_param_spec_int:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecInt instance specifying a %G_TYPE_INT property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (ispec == NULL)
return NULL;
ispec->minimum = minimum;
ispec->maximum = maximum;
ispec->default_value = default_value;
return G_PARAM_SPEC (ispec);
}
/**
* g_param_spec_uint:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecUInt instance specifying a %G_TYPE_UINT property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (uspec == NULL)
return NULL;
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
/**
* g_param_spec_long:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecLong instance specifying a %G_TYPE_LONG property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (lspec == NULL)
return NULL;
lspec->minimum = minimum;
lspec->maximum = maximum;
lspec->default_value = default_value;
return G_PARAM_SPEC (lspec);
}
/**
* g_param_spec_ulong:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecULong instance specifying a %G_TYPE_ULONG
* property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (uspec == NULL)
return NULL;
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
/**
* g_param_spec_int64:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecInt64 instance specifying a %G_TYPE_INT64 property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (lspec == NULL)
return NULL;
lspec->minimum = minimum;
lspec->maximum = maximum;
lspec->default_value = default_value;
return G_PARAM_SPEC (lspec);
}
/**
* g_param_spec_uint64:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecUInt64 instance specifying a %G_TYPE_UINT64
* property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (uspec == NULL)
return NULL;
uspec->minimum = minimum;
uspec->maximum = maximum;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
/**
* g_param_spec_unichar:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecUnichar instance specifying a %G_TYPE_UINT
* property. #GValue structures for this property can be accessed with
* g_value_set_uint() and g_value_get_uint().
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (uspec == NULL)
return NULL;
uspec->default_value = default_value;
return G_PARAM_SPEC (uspec);
}
/**
* g_param_spec_enum:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @enum_type: a #GType derived from %G_TYPE_ENUM
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecEnum instance specifying a %G_TYPE_ENUM
* property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (espec == NULL)
{
g_type_class_unref (enum_class);
return NULL;
}
espec->enum_class = enum_class;
espec->default_value = default_value;
G_PARAM_SPEC (espec)->value_type = enum_type;
return G_PARAM_SPEC (espec);
}
/**
* g_param_spec_flags:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @flags_type: a #GType derived from %G_TYPE_FLAGS
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecFlags instance specifying a %G_TYPE_FLAGS
* property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (fspec == NULL)
{
g_type_class_unref (flags_class);
return NULL;
}
fspec->flags_class = flags_class;
fspec->default_value = default_value;
G_PARAM_SPEC (fspec)->value_type = flags_type;
return G_PARAM_SPEC (fspec);
}
/**
* g_param_spec_float:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecFloat instance specifying a %G_TYPE_FLOAT property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (fspec == NULL)
return NULL;
fspec->minimum = minimum;
fspec->maximum = maximum;
fspec->default_value = default_value;
return G_PARAM_SPEC (fspec);
}
/**
* g_param_spec_double:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @minimum: minimum value for the property specified
* @maximum: maximum value for the property specified
* @default_value: default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecDouble instance specifying a %G_TYPE_DOUBLE
* property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (dspec == NULL)
return NULL;
dspec->minimum = minimum;
dspec->maximum = maximum;
dspec->default_value = default_value;
return G_PARAM_SPEC (dspec);
}
/**
* g_param_spec_string:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @default_value: (nullable): default value for the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecString instance.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (sspec == NULL)
return NULL;
g_free (sspec->default_value);
sspec->default_value = g_strdup (default_value);
return G_PARAM_SPEC (sspec);
}
/**
* g_param_spec_param:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @param_type: a #GType derived from %G_TYPE_PARAM
* @flags: flags for the property specified
*
* Creates a new #GParamSpecParam instance specifying a %G_TYPE_PARAM
* property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (pspec == NULL)
return NULL;
G_PARAM_SPEC (pspec)->value_type = param_type;
return G_PARAM_SPEC (pspec);
}
/**
* g_param_spec_boxed:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @boxed_type: %G_TYPE_BOXED derived type of this property
* @flags: flags for the property specified
*
* Creates a new #GParamSpecBoxed instance specifying a %G_TYPE_BOXED
* derived property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (bspec == NULL)
return NULL;
G_PARAM_SPEC (bspec)->value_type = boxed_type;
return G_PARAM_SPEC (bspec);
}
/**
* g_param_spec_pointer:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @flags: flags for the property specified
*
* Creates a new #GParamSpecPointer instance specifying a pointer property.
* Where possible, it is better to use g_param_spec_object() or
* g_param_spec_boxed() to expose memory management information.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (pspec == NULL)
return NULL;
return G_PARAM_SPEC (pspec);
}
/**
* g_param_spec_gtype:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @is_a_type: a #GType whose subtypes are allowed as values
* of the property (use %G_TYPE_NONE for any type)
* @flags: flags for the property specified
*
* Creates a new #GParamSpecGType instance specifying a
* %G_TYPE_GTYPE property.
*
* See g_param_spec_internal() for details on property names.
*
* Since: 2.10
*
* Returns: (transfer full): a newly created parameter specification
*/
GParamSpec*
g_param_spec_gtype (const gchar *name,
const gchar *nick,
const gchar *blurb,
GType is_a_type,
GParamFlags flags)
{
GParamSpecGType *tspec;
tspec = g_param_spec_internal (G_TYPE_PARAM_GTYPE,
name,
nick,
blurb,
flags);
if (tspec == NULL)
return NULL;
tspec->is_a_type = is_a_type;
return G_PARAM_SPEC (tspec);
}
/**
* g_param_spec_value_array: (skip)
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @element_spec: a #GParamSpec describing the elements contained in
* arrays of this property, may be %NULL
* @flags: flags for the property specified
*
* Creates a new #GParamSpecValueArray instance specifying a
* %G_TYPE_VALUE_ARRAY property. %G_TYPE_VALUE_ARRAY is a
* %G_TYPE_BOXED type, as such, #GValue structures for this property
* can be accessed with g_value_set_boxed() and g_value_get_boxed().
*
* See g_param_spec_internal() for details on property names.
*
* Returns: a newly created parameter specification
*/
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 (aspec == NULL)
return NULL;
if (element_spec)
{
aspec->element_spec = g_param_spec_ref (element_spec);
g_param_spec_sink (element_spec);
}
return G_PARAM_SPEC (aspec);
}
/**
* g_param_spec_object:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @object_type: %G_TYPE_OBJECT derived type of this property
* @flags: flags for the property specified
*
* Creates a new #GParamSpecBoxed instance specifying a %G_TYPE_OBJECT
* derived property.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): a newly created parameter specification
*/
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);
if (ospec == NULL)
return NULL;
G_PARAM_SPEC (ospec)->value_type = object_type;
return G_PARAM_SPEC (ospec);
}
/**
* g_param_spec_override: (skip)
* @name: the name of the property.
* @overridden: The property that is being overridden
*
* Creates a new property of type #GParamSpecOverride. This is used
* to direct operations to another paramspec, and will not be directly
* useful unless you are implementing a new base type similar to GObject.
*
* Since: 2.4
*
* Returns: the newly created #GParamSpec
*/
GParamSpec*
g_param_spec_override (const gchar *name,
GParamSpec *overridden)
{
GParamSpec *pspec;
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail (G_IS_PARAM_SPEC (overridden), NULL);
/* Dereference further redirections for property that was passed in
*/
while (TRUE)
{
GParamSpec *indirect = g_param_spec_get_redirect_target (overridden);
if (indirect)
overridden = indirect;
else
break;
}
pspec = g_param_spec_internal (G_TYPE_PARAM_OVERRIDE,
name, NULL, NULL,
overridden->flags);
if (pspec == NULL)
return NULL;
pspec->value_type = G_PARAM_SPEC_VALUE_TYPE (overridden);
G_PARAM_SPEC_OVERRIDE (pspec)->overridden = g_param_spec_ref (overridden);
return pspec;
}
/**
* g_param_spec_variant:
* @name: canonical name of the property specified
* @nick: nick name for the property specified
* @blurb: description of the property specified
* @type: a #GVariantType
* @default_value: (nullable) (transfer full): a #GVariant of type @type to
* use as the default value, or %NULL
* @flags: flags for the property specified
*
* Creates a new #GParamSpecVariant instance specifying a #GVariant
* property.
*
* If @default_value is floating, it is consumed.
*
* See g_param_spec_internal() for details on property names.
*
* Returns: (transfer full): the newly created #GParamSpec
*
* Since: 2.26
*/
GParamSpec*
g_param_spec_variant (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GVariantType *type,
GVariant *default_value,
GParamFlags flags)
{
GParamSpecVariant *vspec;
g_return_val_if_fail (type != NULL, NULL);
g_return_val_if_fail (default_value == NULL ||
g_variant_is_of_type (default_value, type), NULL);
vspec = g_param_spec_internal (G_TYPE_PARAM_VARIANT,
name,
nick,
blurb,
flags);
if (vspec == NULL)
return NULL;
vspec->type = g_variant_type_copy (type);
if (default_value)
vspec->default_value = g_variant_ref_sink (default_value);
return G_PARAM_SPEC (vspec);
}
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