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glib/gobject/gvaluetypes.c
Matthias Clasen 63802ac67d Clarify some docs 
svn path=/trunk/; revision=7280
2008-08-01 18:36:01 +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 "config.h"
#include <string.h>
#include <stdlib.h> /* qsort() */
#include "gvaluetypes.h"
#include "gvaluecollector.h"
#include "gobject.h"
#include "gparam.h"
#include "gboxed.h"
#include "genums.h"
#include "gobjectalias.h"
/* --- value functions --- */
static void
value_init_long0 (GValue *value)
{
value->data[0].v_long = 0;
}
static void
value_copy_long0 (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_long = src_value->data[0].v_long;
}
static gchar*
value_lcopy_char (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gint8 *int8_p = collect_values[0].v_pointer;
if (!int8_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*int8_p = value->data[0].v_int;
return NULL;
}
static gchar*
value_lcopy_boolean (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gboolean *bool_p = collect_values[0].v_pointer;
if (!bool_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*bool_p = value->data[0].v_int;
return NULL;
}
static gchar*
value_collect_int (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_int = collect_values[0].v_int;
return NULL;
}
static gchar*
value_lcopy_int (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gint *int_p = collect_values[0].v_pointer;
if (!int_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*int_p = value->data[0].v_int;
return NULL;
}
static gchar*
value_collect_long (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_long = collect_values[0].v_long;
return NULL;
}
static gchar*
value_lcopy_long (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
glong *long_p = collect_values[0].v_pointer;
if (!long_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*long_p = value->data[0].v_long;
return NULL;
}
static void
value_init_int64 (GValue *value)
{
value->data[0].v_int64 = 0;
}
static void
value_copy_int64 (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_int64 = src_value->data[0].v_int64;
}
static gchar*
value_collect_int64 (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_int64 = collect_values[0].v_int64;
return NULL;
}
static gchar*
value_lcopy_int64 (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gint64 *int64_p = collect_values[0].v_pointer;
if (!int64_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*int64_p = value->data[0].v_int64;
return NULL;
}
static void
value_init_float (GValue *value)
{
value->data[0].v_float = 0.0;
}
static void
value_copy_float (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_float = src_value->data[0].v_float;
}
static gchar*
value_collect_float (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_float = collect_values[0].v_double;
return NULL;
}
static gchar*
value_lcopy_float (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gfloat *float_p = collect_values[0].v_pointer;
if (!float_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*float_p = value->data[0].v_float;
return NULL;
}
static void
value_init_double (GValue *value)
{
value->data[0].v_double = 0.0;
}
static void
value_copy_double (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_double = src_value->data[0].v_double;
}
static gchar*
value_collect_double (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_double = collect_values[0].v_double;
return NULL;
}
static gchar*
value_lcopy_double (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gdouble *double_p = collect_values[0].v_pointer;
if (!double_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*double_p = value->data[0].v_double;
return NULL;
}
static void
value_init_string (GValue *value)
{
value->data[0].v_pointer = NULL;
}
static void
value_free_string (GValue *value)
{
if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
g_free (value->data[0].v_pointer);
}
static void
value_copy_string (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_pointer = g_strdup (src_value->data[0].v_pointer);
}
static gchar*
value_collect_string (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
if (!collect_values[0].v_pointer)
value->data[0].v_pointer = NULL;
else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
{
value->data[0].v_pointer = collect_values[0].v_pointer;
value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
}
else
value->data[0].v_pointer = g_strdup (collect_values[0].v_pointer);
return NULL;
}
static gchar*
value_lcopy_string (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gchar **string_p = collect_values[0].v_pointer;
if (!string_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
if (!value->data[0].v_pointer)
*string_p = NULL;
else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
*string_p = value->data[0].v_pointer;
else
*string_p = g_strdup (value->data[0].v_pointer);
return NULL;
}
static void
value_init_pointer (GValue *value)
{
value->data[0].v_pointer = NULL;
}
static void
value_copy_pointer (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_pointer = src_value->data[0].v_pointer;
}
static gpointer
value_peek_pointer0 (const GValue *value)
{
return value->data[0].v_pointer;
}
static gchar*
value_collect_pointer (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_pointer = collect_values[0].v_pointer;
return NULL;
}
static gchar*
value_lcopy_pointer (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
gpointer *pointer_p = collect_values[0].v_pointer;
if (!pointer_p)
return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
*pointer_p = value->data[0].v_pointer;
return NULL;
}
/* --- type initialization --- */
void
g_value_types_init (void)
{
GTypeInfo info = {
0, /* class_size */
NULL, /* base_init */
NULL, /* base_destroy */
NULL, /* class_init */
NULL, /* class_destroy */
NULL, /* class_data */
0, /* instance_size */
0, /* n_preallocs */
NULL, /* instance_init */
NULL, /* value_table */
};
const GTypeFundamentalInfo finfo = { G_TYPE_FLAG_DERIVABLE, };
GType type;
/* G_TYPE_CHAR / G_TYPE_UCHAR
*/
{
static const GTypeValueTable value_table = {
value_init_long0, /* value_init */
NULL, /* value_free */
value_copy_long0, /* value_copy */
NULL, /* value_peek_pointer */
"i", /* collect_format */
value_collect_int, /* collect_value */
"p", /* lcopy_format */
value_lcopy_char, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_CHAR, g_intern_static_string ("gchar"), &info, &finfo, 0);
g_assert (type == G_TYPE_CHAR);
type = g_type_register_fundamental (G_TYPE_UCHAR, g_intern_static_string ("guchar"), &info, &finfo, 0);
g_assert (type == G_TYPE_UCHAR);
}
/* G_TYPE_BOOLEAN
*/
{
static const GTypeValueTable value_table = {
value_init_long0, /* value_init */
NULL, /* value_free */
value_copy_long0, /* value_copy */
NULL, /* value_peek_pointer */
"i", /* collect_format */
value_collect_int, /* collect_value */
"p", /* lcopy_format */
value_lcopy_boolean, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_BOOLEAN, g_intern_static_string ("gboolean"), &info, &finfo, 0);
g_assert (type == G_TYPE_BOOLEAN);
}
/* G_TYPE_INT / G_TYPE_UINT
*/
{
static const GTypeValueTable value_table = {
value_init_long0, /* value_init */
NULL, /* value_free */
value_copy_long0, /* value_copy */
NULL, /* value_peek_pointer */
"i", /* collect_format */
value_collect_int, /* collect_value */
"p", /* lcopy_format */
value_lcopy_int, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_INT, g_intern_static_string ("gint"), &info, &finfo, 0);
g_assert (type == G_TYPE_INT);
type = g_type_register_fundamental (G_TYPE_UINT, g_intern_static_string ("guint"), &info, &finfo, 0);
g_assert (type == G_TYPE_UINT);
}
/* G_TYPE_LONG / G_TYPE_ULONG
*/
{
static const GTypeValueTable value_table = {
value_init_long0, /* value_init */
NULL, /* value_free */
value_copy_long0, /* value_copy */
NULL, /* value_peek_pointer */
"l", /* collect_format */
value_collect_long, /* collect_value */
"p", /* lcopy_format */
value_lcopy_long, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_LONG, g_intern_static_string ("glong"), &info, &finfo, 0);
g_assert (type == G_TYPE_LONG);
type = g_type_register_fundamental (G_TYPE_ULONG, g_intern_static_string ("gulong"), &info, &finfo, 0);
g_assert (type == G_TYPE_ULONG);
}
/* G_TYPE_INT64 / G_TYPE_UINT64
*/
{
static const GTypeValueTable value_table = {
value_init_int64, /* value_init */
NULL, /* value_free */
value_copy_int64, /* value_copy */
NULL, /* value_peek_pointer */
"q", /* collect_format */
value_collect_int64, /* collect_value */
"p", /* lcopy_format */
value_lcopy_int64, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_INT64, g_intern_static_string ("gint64"), &info, &finfo, 0);
g_assert (type == G_TYPE_INT64);
type = g_type_register_fundamental (G_TYPE_UINT64, g_intern_static_string ("guint64"), &info, &finfo, 0);
g_assert (type == G_TYPE_UINT64);
}
/* G_TYPE_FLOAT
*/
{
static const GTypeValueTable value_table = {
value_init_float, /* value_init */
NULL, /* value_free */
value_copy_float, /* value_copy */
NULL, /* value_peek_pointer */
"d", /* collect_format */
value_collect_float, /* collect_value */
"p", /* lcopy_format */
value_lcopy_float, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_FLOAT, g_intern_static_string ("gfloat"), &info, &finfo, 0);
g_assert (type == G_TYPE_FLOAT);
}
/* G_TYPE_DOUBLE
*/
{
static const GTypeValueTable value_table = {
value_init_double, /* value_init */
NULL, /* value_free */
value_copy_double, /* value_copy */
NULL, /* value_peek_pointer */
"d", /* collect_format */
value_collect_double, /* collect_value */
"p", /* lcopy_format */
value_lcopy_double, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_DOUBLE, g_intern_static_string ("gdouble"), &info, &finfo, 0);
g_assert (type == G_TYPE_DOUBLE);
}
/* G_TYPE_STRING
*/
{
static const GTypeValueTable value_table = {
value_init_string, /* value_init */
value_free_string, /* value_free */
value_copy_string, /* value_copy */
value_peek_pointer0, /* value_peek_pointer */
"p", /* collect_format */
value_collect_string, /* collect_value */
"p", /* lcopy_format */
value_lcopy_string, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_STRING, g_intern_static_string ("gchararray"), &info, &finfo, 0);
g_assert (type == G_TYPE_STRING);
}
/* G_TYPE_POINTER
*/
{
static const GTypeValueTable value_table = {
value_init_pointer, /* value_init */
NULL, /* value_free */
value_copy_pointer, /* value_copy */
value_peek_pointer0, /* value_peek_pointer */
"p", /* collect_format */
value_collect_pointer, /* collect_value */
"p", /* lcopy_format */
value_lcopy_pointer, /* lcopy_value */
};
info.value_table = &value_table;
type = g_type_register_fundamental (G_TYPE_POINTER, g_intern_static_string ("gpointer"), &info, &finfo, 0);
g_assert (type == G_TYPE_POINTER);
}
}
/* --- GValue functions --- */
/**
* g_value_set_char:
* @value: a valid #GValue of type %G_TYPE_CHAR
* @v_char: character value to be set
*
* Set the contents of a %G_TYPE_CHAR #GValue to @v_char.
*/
void
g_value_set_char (GValue *value,
gchar v_char)
{
g_return_if_fail (G_VALUE_HOLDS_CHAR (value));
value->data[0].v_int = v_char;
}
/**
* g_value_get_char:
* @value: a valid #GValue of type %G_TYPE_CHAR
*
* Get the contents of a %G_TYPE_CHAR #GValue.
*
* Returns: character contents of @value
*/
gchar
g_value_get_char (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_CHAR (value), 0);
return value->data[0].v_int;
}
/**
* g_value_set_uchar:
* @value: a valid #GValue of type %G_TYPE_UCHAR
* @v_uchar: unsigned character value to be set
*
* Set the contents of a %G_TYPE_UCHAR #GValue to @v_uchar.
*/
void
g_value_set_uchar (GValue *value,
guchar v_uchar)
{
g_return_if_fail (G_VALUE_HOLDS_UCHAR (value));
value->data[0].v_uint = v_uchar;
}
/**
* g_value_get_uchar:
* @value: a valid #GValue of type %G_TYPE_UCHAR
*
* Get the contents of a %G_TYPE_UCHAR #GValue.
*
* Returns: unsigned character contents of @value
*/
guchar
g_value_get_uchar (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_UCHAR (value), 0);
return value->data[0].v_uint;
}
/**
* g_value_set_boolean:
* @value: a valid #GValue of type %G_TYPE_BOOLEAN
* @v_boolean: boolean value to be set
*
* Set the contents of a %G_TYPE_BOOLEAN #GValue to @v_boolean.
*/
void
g_value_set_boolean (GValue *value,
gboolean v_boolean)
{
g_return_if_fail (G_VALUE_HOLDS_BOOLEAN (value));
value->data[0].v_int = v_boolean != FALSE;
}
/**
* g_value_get_boolean:
* @value: a valid #GValue of type %G_TYPE_BOOLEAN
*
* Get the contents of a %G_TYPE_BOOLEAN #GValue.
*
* Returns: boolean contents of @value
*/
gboolean
g_value_get_boolean (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_BOOLEAN (value), 0);
return value->data[0].v_int;
}
/**
* g_value_set_int:
* @value: a valid #GValue of type %G_TYPE_INT
* @v_int: integer value to be set
*
* Set the contents of a %G_TYPE_INT #GValue to @v_int.
*/
void
g_value_set_int (GValue *value,
gint v_int)
{
g_return_if_fail (G_VALUE_HOLDS_INT (value));
value->data[0].v_int = v_int;
}
/**
* g_value_get_int:
* @value: a valid #GValue of type %G_TYPE_INT
*
* Get the contents of a %G_TYPE_INT #GValue.
*
* Returns: integer contents of @value
*/
gint
g_value_get_int (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_INT (value), 0);
return value->data[0].v_int;
}
/**
* g_value_set_uint:
* @value: a valid #GValue of type %G_TYPE_UINT
* @v_uint: unsigned integer value to be set
*
* Set the contents of a %G_TYPE_UINT #GValue to @v_uint.
*/
void
g_value_set_uint (GValue *value,
guint v_uint)
{
g_return_if_fail (G_VALUE_HOLDS_UINT (value));
value->data[0].v_uint = v_uint;
}
/**
* g_value_get_uint:
* @value: a valid #GValue of type %G_TYPE_UINT
*
* Get the contents of a %G_TYPE_UINT #GValue.
*
* Returns: unsigned integer contents of @value
*/
guint
g_value_get_uint (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_UINT (value), 0);
return value->data[0].v_uint;
}
/**
* g_value_set_long:
* @value: a valid #GValue of type %G_TYPE_LONG
* @v_long: long integer value to be set
*
* Set the contents of a %G_TYPE_LONG #GValue to @v_long.
*/
void
g_value_set_long (GValue *value,
glong v_long)
{
g_return_if_fail (G_VALUE_HOLDS_LONG (value));
value->data[0].v_long = v_long;
}
/**
* g_value_get_long:
* @value: a valid #GValue of type %G_TYPE_LONG
*
* Get the contents of a %G_TYPE_LONG #GValue.
*
* Returns: long integer contents of @value
*/
glong
g_value_get_long (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_LONG (value), 0);
return value->data[0].v_long;
}
/**
* g_value_set_ulong:
* @value: a valid #GValue of type %G_TYPE_ULONG
* @v_ulong: unsigned long integer value to be set
*
* Set the contents of a %G_TYPE_ULONG #GValue to @v_ulong.
*/
void
g_value_set_ulong (GValue *value,
gulong v_ulong)
{
g_return_if_fail (G_VALUE_HOLDS_ULONG (value));
value->data[0].v_ulong = v_ulong;
}
/**
* g_value_get_ulong:
* @value: a valid #GValue of type %G_TYPE_ULONG
*
* Get the contents of a %G_TYPE_ULONG #GValue.
*
* Returns: unsigned long integer contents of @value
*/
gulong
g_value_get_ulong (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_ULONG (value), 0);
return value->data[0].v_ulong;
}
/**
* g_value_get_int64:
* @value: a valid #GValue of type %G_TYPE_INT64
*
* Get the contents of a %G_TYPE_INT64 #GValue.
*
* Returns: 64bit integer contents of @value
*/
void
g_value_set_int64 (GValue *value,
gint64 v_int64)
{
g_return_if_fail (G_VALUE_HOLDS_INT64 (value));
value->data[0].v_int64 = v_int64;
}
/**
* g_value_set_int64:
* @value: a valid #GValue of type %G_TYPE_INT64
* @v_int64: 64bit integer value to be set
*
* Set the contents of a %G_TYPE_INT64 #GValue to @v_int64.
*/
gint64
g_value_get_int64 (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_INT64 (value), 0);
return value->data[0].v_int64;
}
/**
* g_value_set_uint64:
* @value: a valid #GValue of type %G_TYPE_UINT64
* @v_uint64: unsigned 64bit integer value to be set
*
* Set the contents of a %G_TYPE_UINT64 #GValue to @v_uint64.
*/
void
g_value_set_uint64 (GValue *value,
guint64 v_uint64)
{
g_return_if_fail (G_VALUE_HOLDS_UINT64 (value));
value->data[0].v_uint64 = v_uint64;
}
/**
* g_value_get_uint64:
* @value: a valid #GValue of type %G_TYPE_UINT64
*
* Get the contents of a %G_TYPE_UINT64 #GValue.
*
* Returns: unsigned 64bit integer contents of @value
*/
guint64
g_value_get_uint64 (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_UINT64 (value), 0);
return value->data[0].v_uint64;
}
/**
* g_value_set_float:
* @value: a valid #GValue of type %G_TYPE_FLOAT
* @v_float: float value to be set
*
* Set the contents of a %G_TYPE_FLOAT #GValue to @v_float.
*/
void
g_value_set_float (GValue *value,
gfloat v_float)
{
g_return_if_fail (G_VALUE_HOLDS_FLOAT (value));
value->data[0].v_float = v_float;
}
/**
* g_value_get_float:
* @value: a valid #GValue of type %G_TYPE_FLOAT
*
* Get the contents of a %G_TYPE_FLOAT #GValue.
*
* Returns: float contents of @value
*/
gfloat
g_value_get_float (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_FLOAT (value), 0);
return value->data[0].v_float;
}
/**
* g_value_set_double:
* @value: a valid #GValue of type %G_TYPE_DOUBLE
* @v_double: double value to be set
*
* Set the contents of a %G_TYPE_DOUBLE #GValue to @v_double.
*/
void
g_value_set_double (GValue *value,
gdouble v_double)
{
g_return_if_fail (G_VALUE_HOLDS_DOUBLE (value));
value->data[0].v_double = v_double;
}
/**
* g_value_get_double:
* @value: a valid #GValue of type %G_TYPE_DOUBLE
*
* Get the contents of a %G_TYPE_DOUBLE #GValue.
*
* Returns: double contents of @value
*/
gdouble
g_value_get_double (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_DOUBLE (value), 0);
return value->data[0].v_double;
}
/**
* g_value_set_string:
* @value: a valid #GValue of type %G_TYPE_STRING
* @v_string: caller-owned string to be duplicated for the #GValue
*
* Set the contents of a %G_TYPE_STRING #GValue to @v_string.
*/
void
g_value_set_string (GValue *value,
const gchar *v_string)
{
gchar *new_val;
g_return_if_fail (G_VALUE_HOLDS_STRING (value));
new_val = g_strdup (v_string);
if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
value->data[1].v_uint = 0;
else
g_free (value->data[0].v_pointer);
value->data[0].v_pointer = new_val;
}
/**
* g_value_set_static_string:
* @value: a valid #GValue of type %G_TYPE_STRING
* @v_string: static string to be set
*
* Set the contents of a %G_TYPE_STRING #GValue to @v_string.
* The string is assumed to be static, and is thus not duplicated
* when setting the #GValue.
*/
void
g_value_set_static_string (GValue *value,
const gchar *v_string)
{
g_return_if_fail (G_VALUE_HOLDS_STRING (value));
if (!(value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS))
g_free (value->data[0].v_pointer);
value->data[1].v_uint = G_VALUE_NOCOPY_CONTENTS;
value->data[0].v_pointer = (gchar*) v_string;
}
/**
* g_value_set_string_take_ownership:
* @value: a valid #GValue of type %G_TYPE_STRING
* @v_string: duplicated unowned string to be set
*
* This is an internal function introduced mainly for C marshallers.
*
* Deprecated: 2.4: Use g_value_take_string() instead.
*/
void
g_value_set_string_take_ownership (GValue *value,
gchar *v_string)
{
g_value_take_string (value, v_string);
}
/**
* g_value_take_string:
* @value: a valid #GValue of type %G_TYPE_STRING
* @v_string: string to take ownership of
*
* Sets the contents of a %G_TYPE_STRING #GValue to @v_string.
*
* Since: 2.4
*/
void
g_value_take_string (GValue *value,
gchar *v_string)
{
g_return_if_fail (G_VALUE_HOLDS_STRING (value));
if (value->data[1].v_uint & G_VALUE_NOCOPY_CONTENTS)
value->data[1].v_uint = 0;
else
g_free (value->data[0].v_pointer);
value->data[0].v_pointer = v_string;
}
/**
* g_value_get_string:
* @value: a valid #GValue of type %G_TYPE_STRING
*
* Get the contents of a %G_TYPE_STRING #GValue.
*
* Returns: string content of @value
*/
G_CONST_RETURN gchar*
g_value_get_string (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_STRING (value), NULL);
return value->data[0].v_pointer;
}
/**
* g_value_dup_string:
* @value: a valid #GValue of type %G_TYPE_STRING
*
* Get a copy the contents of a %G_TYPE_STRING #GValue.
*
* Returns: a newly allocated copy of the string content of @value
*/
gchar*
g_value_dup_string (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_STRING (value), NULL);
return g_strdup (value->data[0].v_pointer);
}
/**
* g_value_set_pointer:
* @value: a valid #GValue of %G_TYPE_POINTER
* @v_pointer: pointer value to be set
*
* Set the contents of a pointer #GValue to @v_pointer.
*/
void
g_value_set_pointer (GValue *value,
gpointer v_pointer)
{
g_return_if_fail (G_VALUE_HOLDS_POINTER (value));
value->data[0].v_pointer = v_pointer;
}
/**
* g_value_get_pointer:
* @value: a valid #GValue of %G_TYPE_POINTER
*
* Get the contents of a pointer #GValue.
*
* Returns: pointer contents of @value
*/
gpointer
g_value_get_pointer (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_POINTER (value), NULL);
return value->data[0].v_pointer;
}
GType
g_gtype_get_type (void)
{
static const GTypeInfo type_info = { 0, };
static GType type;
if (!type)
type = g_type_register_static (G_TYPE_POINTER, g_intern_static_string ("GType"), &type_info, 0);
return type;
}
/**
* g_value_set_gtype:
* @value: a valid #GValue of type %G_TYPE_GTYPE
* @v_gtype: #GType to be set
*
* Set the contents of a %G_TYPE_GTYPE #GValue to @v_gtype.
*
* Since: 2.12
*/
void
g_value_set_gtype (GValue *value,
GType v_gtype)
{
g_return_if_fail (G_VALUE_HOLDS_GTYPE (value));
value->data[0].v_long = v_gtype;
}
/**
* g_value_get_gtype:
* @value: a valid #GValue of type %G_TYPE_GTYPE
*
* Get the contents of a %G_TYPE_GTYPE #GValue.
*
* Since: 2.12
*
* Returns: the #GType stored in @value
*/
GType
g_value_get_gtype (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_GTYPE (value), 0);
return value->data[0].v_long;
}
/**
* g_strdup_value_contents:
* @value: #GValue which contents are to be described.
*
* Return a newly allocated string, which describes the contents of a
* #GValue. The main purpose of this function is to describe #GValue
* contents for debugging output, the way in which the contents are
* described may change between different GLib versions.
*
* Returns: Newly allocated string.
*/
gchar*
g_strdup_value_contents (const GValue *value)
{
const gchar *src;
gchar *contents;
g_return_val_if_fail (G_IS_VALUE (value), NULL);
if (G_VALUE_HOLDS_STRING (value))
{
src = g_value_get_string (value);
if (!src)
contents = g_strdup ("NULL");
else
{
gchar *s = g_strescape (src, NULL);
contents = g_strdup_printf ("\"%s\"", s);
g_free (s);
}
}
else if (g_value_type_transformable (G_VALUE_TYPE (value), G_TYPE_STRING))
{
GValue tmp_value = { 0, };
gchar *s;
g_value_init (&tmp_value, G_TYPE_STRING);
g_value_transform (value, &tmp_value);
s = g_strescape (g_value_get_string (&tmp_value), NULL);
g_value_unset (&tmp_value);
if (G_VALUE_HOLDS_ENUM (value) || G_VALUE_HOLDS_FLAGS (value))
contents = g_strdup_printf ("((%s) %s)",
g_type_name (G_VALUE_TYPE (value)),
s);
else
contents = g_strdup (s ? s : "NULL");
g_free (s);
}
else if (g_value_fits_pointer (value))
{
gpointer p = g_value_peek_pointer (value);
if (!p)
contents = g_strdup ("NULL");
else if (G_VALUE_HOLDS_OBJECT (value))
contents = g_strdup_printf ("((%s*) %p)", G_OBJECT_TYPE_NAME (p), p);
else if (G_VALUE_HOLDS_PARAM (value))
contents = g_strdup_printf ("((%s*) %p)", G_PARAM_SPEC_TYPE_NAME (p), p);
else if (G_VALUE_HOLDS_BOXED (value))
contents = g_strdup_printf ("((%s*) %p)", g_type_name (G_VALUE_TYPE (value)), p);
else if (G_VALUE_HOLDS_POINTER (value))
contents = g_strdup_printf ("((gpointer) %p)", p);
else
contents = g_strdup ("???");
}
else
contents = g_strdup ("???");
return contents;
}
/**
* g_pointer_type_register_static:
* @name: the name of the new pointer type.
*
* Creates a new %G_TYPE_POINTER derived type id for a new
* pointer type with name @name.
*
* Returns: a new %G_TYPE_POINTER derived type id for @name.
*/
GType
g_pointer_type_register_static (const gchar *name)
{
static const GTypeInfo type_info = {
0, /* class_size */
NULL, /* base_init */
NULL, /* base_finalize */
NULL, /* class_init */
NULL, /* class_finalize */
NULL, /* class_data */
0, /* instance_size */
0, /* n_preallocs */
NULL, /* instance_init */
NULL /* value_table */
};
GType type;
g_return_val_if_fail (name != NULL, 0);
g_return_val_if_fail (g_type_from_name (name) == 0, 0);
type = g_type_register_static (G_TYPE_POINTER, name, &type_info, 0);
return type;
}
#define __G_VALUETYPES_C__
#include "gobjectaliasdef.c"
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