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glib/gobject/genums.c
Tim Janik 37e4b8c87e changed prototype of g_boxed_type_register_static() to contain an optional 
Wed Mar  7 09:36:33 2001  Tim Janik  <timj@gtk.org>

	* gboxed.[hc]: changed prototype of g_boxed_type_register_static()
	to contain an optional init function and a hint at whether the
	boxed structure uses ref counting internally.
	added g_value_set_boxed_take_ownership().
	made G_TYPE_BOXED an abstract value type.

	* genums.[hc]: made G_TYPE_ENUM and G_TYPE_FLAGS abstract value
	types.

	* glib-genmarshal.c: argument type changes, preparation for third-party
	arg specification.

	* gobject.[hc]: cleaned up get/set property code.
	added g_strdup_value_contents() to improve warnings.

	* gparam.[hc]: added g_param_value_convert(), taking over responsibility
	of the old g_value_convert(). added G_PARAM_LAX_VALIDATION flag so
	validation alterations may be valid a part of the property setting
	process.

	* gparamspecs.[hc]: made value comparisons stable (for sort applications).
	added GParamSpecValueArray, a param spec for value arrays and
	GParamSpecClosure. nuked the value exchange functions and
	GParamSpecCCallback.

	* gtype.[hc]: catch unintialized usages of the type system with
	g_return_val_if_uninitialized(). introduced G_TYPE_FLAG_VALUE_ABSTRACT
	to flag types that introduce a value table, but can't be used for
	g_value_init(). cleaned up reserved type ids.

	* gvalue.[hc]: code cleanups and saner checking.
	nuked the value exchange API. implemented value transformations, we
	can't really "convert" values, rather transforms are an anylogy to
	C casts, real conversions need a param spec for validation, which is
	why g_param_value_convert() does real conversions now.

	* gvaluearray.[hc]: new files that implement a GValueArray, a struct
	that can hold inhomogeneous arrays of value (to that extend that it
	also allowes undefined values, i.e. G_VALUE_TYPE(value)==0).
	this is exposed to the type system as a boxed type.

	* gvaluetransform.c: new file implementing most of the former value
	exchange functions as single-sided transformations.

	* gvaluetypes.[hc]: nuked G_TYPE_CCALLBACK, added
	g_value_set_string_take_ownership().

	* *.h: s/G_IS_VALUE_/G_VALUE_HOLDS_/.

	* *.[hc]: many fixes and cleanups.

	* many warning improvements.

Tue Feb 27 18:35:15 2001  Tim Janik  <timj@gtk.org>

	* gobject.c (g_object_get_valist): urg, pass G_VALUE_NOCOPY_CONTENTS
	into G_VALUE_LCOPY(), this needs proper documenting.

	* gparam.c: fixed G_PARAM_USER_MASK.

	* gtype.c (type_data_make_W):
	(type_data_last_unref_Wm): fixed invalid memory freeing.

	* gobject.c (g_object_last_unref): destroy signal handlers associated
	with object, right before finalization.

	* gsignal.c (g_signal_parse_name): catch destroyed nodes or signals
	that don't actually support details.

	* gobject.[hc]: got rid of property trailers. nuked GObject
	properties "data" and the "signal" variants.
	(g_object_connect): new convenience function to do multiple
	signal connections at once.
	(g_object_disconnect): likewise, for disconnections.

	* gparam.[hc] (g_param_spec_pool_lookup): took out trailer support.

	* gvalue.[hc]: marked g_value_fits_pointer() and g_value_peek_pointer()
	as private (the latter got renamed from g_value_get_as_pointer()).

Wed Mar  7 09:32:06 2001  Tim Janik  <timj@gtk.org>

        * glib-object.h: add gvaluearray.h.

        * gstring.[hc]: fixup naming of g_string_sprint*.

        * gtypes.h: fixed GCompareDataFunc naming.

Wed Mar  7 09:33:27 2001  Tim Janik  <timj@gtk.org>

        * gobject/Makefile.am: shuffled rules to avoid excessive
        rebuilds.

        * gobject/gobject-sections.txt: updates.

        * gobject/tmpl/*: bunch of updates, added another patch
        from Eric Lemings <eric.b.lemings@lmco.com>.
2001-03-07 14:46:45 +00:00

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/* GObject - GLib Type, Object, Parameter and Signal Library
* Copyright (C) 1998-1999, 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 <string.h>
#include "genums.h"
#include "gvalue.h"
#include "gvaluecollector.h"
/* --- prototypes --- */
static void g_enum_class_init (GEnumClass *class,
gpointer class_data);
static void g_flags_class_init (GFlagsClass *class,
gpointer class_data);
static void value_flags_enum_init (GValue *value);
static void value_flags_enum_copy_value (const GValue *src_value,
GValue *dest_value);
static gchar* value_flags_enum_collect_value (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags);
static gchar* value_flags_enum_lcopy_value (const GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags);
/* --- functions --- */
void
g_enum_types_init (void) /* sync with gtype.c */
{
static gboolean initialized = FALSE;
static const GTypeValueTable flags_enum_value_table = {
value_flags_enum_init, /* value_init */
NULL, /* value_free */
value_flags_enum_copy_value, /* value_copy */
NULL, /* value_peek_pointer */
"i", /* collect_format */
value_flags_enum_collect_value, /* collect_value */
"p", /* lcopy_format */
value_flags_enum_lcopy_value, /* lcopy_value */
};
static 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 */
&flags_enum_value_table, /* value_table */
};
static const GTypeFundamentalInfo finfo = {
G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_DERIVABLE,
};
GType type;
g_return_if_fail (initialized == FALSE);
initialized = TRUE;
/* G_TYPE_ENUM
*/
info.class_size = sizeof (GEnumClass);
type = g_type_register_fundamental (G_TYPE_ENUM, "GEnum", &info, &finfo,
G_TYPE_FLAG_ABSTRACT | G_TYPE_FLAG_VALUE_ABSTRACT);
g_assert (type == G_TYPE_ENUM);
/* G_TYPE_FLAGS
*/
info.class_size = sizeof (GFlagsClass);
type = g_type_register_fundamental (G_TYPE_FLAGS, "GFlags", &info, &finfo,
G_TYPE_FLAG_ABSTRACT | G_TYPE_FLAG_VALUE_ABSTRACT);
g_assert (type == G_TYPE_FLAGS);
}
static void
value_flags_enum_init (GValue *value)
{
value->data[0].v_long = 0;
}
static void
value_flags_enum_copy_value (const GValue *src_value,
GValue *dest_value)
{
dest_value->data[0].v_long = src_value->data[0].v_long;
}
static gchar*
value_flags_enum_collect_value (GValue *value,
guint n_collect_values,
GTypeCValue *collect_values,
guint collect_flags)
{
value->data[0].v_long = collect_values[0].v_int;
return NULL;
}
static gchar*
value_flags_enum_lcopy_value (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_long;
return NULL;
}
GType
g_enum_register_static (const gchar *name,
const GEnumValue *const_static_values)
{
GTypeInfo enum_type_info = {
sizeof (GEnumClass), /* class_size */
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) g_enum_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 (const_static_values != NULL, 0);
enum_type_info.class_data = const_static_values;
type = g_type_register_static (G_TYPE_ENUM, name, &enum_type_info, 0);
return type;
}
GType
g_flags_register_static (const gchar *name,
const GFlagsValue *const_static_values)
{
GTypeInfo flags_type_info = {
sizeof (GFlagsClass), /* class_size */
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) g_flags_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 (const_static_values != NULL, 0);
flags_type_info.class_data = const_static_values;
type = g_type_register_static (G_TYPE_FLAGS, name, &flags_type_info, 0);
return type;
}
void
g_enum_complete_type_info (GType g_enum_type,
GTypeInfo *info,
const GEnumValue *const_values)
{
g_return_if_fail (G_TYPE_IS_ENUM (g_enum_type));
g_return_if_fail (info != NULL);
g_return_if_fail (const_values != NULL);
info->class_size = sizeof (GEnumClass);
info->base_init = NULL;
info->base_finalize = NULL;
info->class_init = (GClassInitFunc) g_enum_class_init;
info->class_finalize = NULL;
info->class_data = const_values;
}
void
g_flags_complete_type_info (GType g_flags_type,
GTypeInfo *info,
const GFlagsValue *const_values)
{
g_return_if_fail (G_TYPE_IS_FLAGS (g_flags_type));
g_return_if_fail (info != NULL);
g_return_if_fail (const_values != NULL);
info->class_size = sizeof (GFlagsClass);
info->base_init = NULL;
info->base_finalize = NULL;
info->class_init = (GClassInitFunc) g_flags_class_init;
info->class_finalize = NULL;
info->class_data = const_values;
}
static void
g_enum_class_init (GEnumClass *class,
gpointer class_data)
{
g_return_if_fail (G_IS_ENUM_CLASS (class));
class->minimum = 0;
class->maximum = 0;
class->n_values = 0;
class->values = class_data;
if (class->values)
{
GEnumValue *values;
class->minimum = class->values->value;
class->maximum = class->values->value;
for (values = class->values; values->value_name; values++)
{
class->minimum = MIN (class->minimum, values->value);
class->maximum = MAX (class->maximum, values->value);
class->n_values++;
}
}
}
static void
g_flags_class_init (GFlagsClass *class,
gpointer class_data)
{
g_return_if_fail (G_IS_FLAGS_CLASS (class));
class->mask = 0;
class->n_values = 0;
class->values = class_data;
if (class->values)
{
GFlagsValue *values;
for (values = class->values; values->value_name; values++)
{
class->mask |= values->value;
class->n_values++;
}
}
}
GEnumValue*
g_enum_get_value_by_name (GEnumClass *enum_class,
const gchar *name)
{
g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
g_return_val_if_fail (name != NULL, NULL);
if (enum_class->n_values)
{
GEnumValue *enum_value;
for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
if (strcmp (name, enum_value->value_name) == 0)
return enum_value;
}
return NULL;
}
GFlagsValue*
g_flags_get_value_by_name (GFlagsClass *flags_class,
const gchar *name)
{
g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
g_return_val_if_fail (name != NULL, NULL);
if (flags_class->n_values)
{
GFlagsValue *flags_value;
for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
if (strcmp (name, flags_value->value_name) == 0)
return flags_value;
}
return NULL;
}
GEnumValue*
g_enum_get_value_by_nick (GEnumClass *enum_class,
const gchar *nick)
{
g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
g_return_val_if_fail (nick != NULL, NULL);
if (enum_class->n_values)
{
GEnumValue *enum_value;
for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
if (enum_value->value_nick && strcmp (nick, enum_value->value_nick) == 0)
return enum_value;
}
return NULL;
}
GFlagsValue*
g_flags_get_value_by_nick (GFlagsClass *flags_class,
const gchar *nick)
{
g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
g_return_val_if_fail (nick != NULL, NULL);
if (flags_class->n_values)
{
GFlagsValue *flags_value;
for (flags_value = flags_class->values; flags_value->value_nick; flags_value++)
if (flags_value->value_nick && strcmp (nick, flags_value->value_nick) == 0)
return flags_value;
}
return NULL;
}
GEnumValue*
g_enum_get_value (GEnumClass *enum_class,
gint value)
{
g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
if (enum_class->n_values)
{
GEnumValue *enum_value;
for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
if (enum_value->value == value)
return enum_value;
}
return NULL;
}
GFlagsValue*
g_flags_get_first_value (GFlagsClass *flags_class,
guint value)
{
g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
if (flags_class->n_values)
{
GFlagsValue *flags_value;
for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
if ((flags_value->value & value) == flags_value->value)
return flags_value;
}
return NULL;
}
void
g_value_set_enum (GValue *value,
gint v_enum)
{
g_return_if_fail (G_VALUE_HOLDS_ENUM (value));
value->data[0].v_long = v_enum;
}
gint
g_value_get_enum (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_ENUM (value), 0);
return value->data[0].v_long;
}
void
g_value_set_flags (GValue *value,
guint v_flags)
{
g_return_if_fail (G_VALUE_HOLDS_FLAGS (value));
value->data[0].v_ulong = v_flags;
}
guint
g_value_get_flags (const GValue *value)
{
g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (value), 0);
return value->data[0].v_ulong;
}
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