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gtk2/gtk/gtkobject.c
Tim Janik afee2c67c5 applied patch from Andreas Persenius <ndap@swipnet.se> that updates the 
Wed Jul 26 12:59:31 2000  Tim Janik  <timj@gtk.org>

        * *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that
        updates the license headers to the GNU Lesser General Public License,
        as well as updating the copyright year to 2000.
2000-07-26 11:33:08 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include "gtkobject.h"
#include "gtksignal.h"
enum {
DESTROY,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_USER_DATA,
ARG_SIGNAL,
ARG_SIGNAL_AFTER,
ARG_OBJECT_SIGNAL,
ARG_OBJECT_SIGNAL_AFTER
};
extern void gtk_object_init_type (void); /* for gtktypeutils.h */
static void gtk_object_base_class_init (GtkObjectClass *class);
static void gtk_object_base_class_finalize (GtkObjectClass *class);
static void gtk_object_class_init (GtkObjectClass *klass);
static void gtk_object_init (GtkObject *object,
GtkObjectClass *klass);
static void gtk_object_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_object_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_object_shutdown (GObject *object);
static void gtk_object_real_destroy (GtkObject *object);
static void gtk_object_finalize (GObject *object);
static void gtk_object_notify_weaks (GtkObject *object);
static gpointer parent_class = NULL;
static guint object_signals[LAST_SIGNAL] = { 0 };
static GHashTable *object_arg_info_ht = NULL;
static GQuark quark_user_data = 0;
static GQuark quark_weakrefs = 0;
static GQuark quark_carg_history = 0;
/****************************************************
* GtkObject type, class and instance initialization
*
****************************************************/
GtkType
gtk_object_get_type (void)
{
static GtkType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GtkObjectClass),
(GBaseInitFunc) gtk_object_base_class_init,
(GBaseFinalizeFunc) gtk_object_base_class_finalize,
(GClassInitFunc) gtk_object_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkObject),
16, /* n_preallocs */
(GInstanceInitFunc) gtk_object_init,
};
object_type = g_type_register_static (G_TYPE_OBJECT, "GtkObject", &object_info);
}
return object_type;
}
static void
gtk_object_base_class_init (GtkObjectClass *class)
{
/* reset instance specific fields that don't get inherited */
class->signals = NULL;
class->nsignals = 0;
class->n_args = 0;
class->construct_args = NULL;
/* reset instance specifc methods that don't get inherited */
class->get_arg = NULL;
class->set_arg = NULL;
}
static void
gtk_object_base_class_finalize (GtkObjectClass *class)
{
g_free (class->signals);
g_return_if_fail (class->construct_args == NULL);
}
static void
gtk_object_class_init (GtkObjectClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
parent_class = g_type_class_ref (G_TYPE_OBJECT);
gobject_class->shutdown = gtk_object_shutdown;
gobject_class->finalize = gtk_object_finalize;
class->get_arg = gtk_object_get_arg;
class->set_arg = gtk_object_set_arg;
class->destroy = gtk_object_real_destroy;
quark_carg_history = g_quark_from_static_string ("gtk-construct-arg-history");
gtk_object_add_arg_type ("GtkObject::user_data",
GTK_TYPE_POINTER,
GTK_ARG_READWRITE,
ARG_USER_DATA);
gtk_object_add_arg_type ("GtkObject::signal",
GTK_TYPE_SIGNAL,
GTK_ARG_WRITABLE,
ARG_SIGNAL);
gtk_object_add_arg_type ("GtkObject::signal_after",
GTK_TYPE_SIGNAL,
GTK_ARG_WRITABLE,
ARG_SIGNAL_AFTER);
gtk_object_add_arg_type ("GtkObject::object_signal",
GTK_TYPE_SIGNAL,
GTK_ARG_WRITABLE,
ARG_OBJECT_SIGNAL);
gtk_object_add_arg_type ("GtkObject::object_signal_after",
GTK_TYPE_SIGNAL,
GTK_ARG_WRITABLE,
ARG_OBJECT_SIGNAL_AFTER);
object_signals[DESTROY] =
gtk_signal_new ("destroy",
GTK_RUN_LAST | GTK_RUN_NO_HOOKS,
GTK_CLASS_TYPE (class),
GTK_SIGNAL_OFFSET (GtkObjectClass, destroy),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (class, object_signals, LAST_SIGNAL);
}
static void
gtk_object_init (GtkObject *object,
GtkObjectClass *klass)
{
gboolean needs_construction = FALSE;
GTK_OBJECT_FLAGS (object) = GTK_FLOATING;
do
{
needs_construction |= klass->construct_args != NULL;
klass = g_type_class_peek_parent (klass);
}
while (klass && GTK_IS_OBJECT_CLASS (klass) && !needs_construction);
if (!needs_construction)
GTK_OBJECT_FLAGS (object) |= GTK_CONSTRUCTED;
}
/********************************************
* Functions to end a GtkObject's life time
*
********************************************/
void
gtk_object_destroy (GtkObject *object)
{
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (GTK_OBJECT_CONSTRUCTED (object));
if (!GTK_OBJECT_DESTROYED (object))
{
/* need to hold a reference count around all class method
* invocations. we guard against reinvocations during
* destruction with the GTK_DESTROYED flag.
*/
gtk_object_ref (object);
GTK_OBJECT_SET_FLAGS (object, GTK_DESTROYED);
G_OBJECT_GET_CLASS (object)->shutdown (G_OBJECT (object));
GTK_OBJECT_UNSET_FLAGS (object, GTK_DESTROYED);
gtk_object_unref (object);
}
}
static void
gtk_object_shutdown (GObject *gobject)
{
GtkObject *object = GTK_OBJECT (gobject);
gtk_signal_emit (object, object_signals[DESTROY]);
G_OBJECT_CLASS (parent_class)->shutdown (gobject);
}
static void
gtk_object_real_destroy (GtkObject *object)
{
if (GTK_OBJECT_CONNECTED (object))
gtk_signal_handlers_destroy (object);
}
static void
gtk_object_finalize (GObject *gobject)
{
GtkObject *object = GTK_OBJECT (gobject);
gtk_object_notify_weaks (object);
G_OBJECT_CLASS (parent_class)->finalize (gobject);
}
/*****************************************
* GtkObject argument handlers
*
*****************************************/
static void
gtk_object_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
guint n = 0;
switch (arg_id)
{
gchar *arg_name;
case ARG_USER_DATA:
gtk_object_set_user_data (object, GTK_VALUE_POINTER (*arg));
break;
case ARG_OBJECT_SIGNAL_AFTER:
n += 6;
case ARG_OBJECT_SIGNAL:
n += 1;
case ARG_SIGNAL_AFTER:
n += 6;
case ARG_SIGNAL:
n += 6;
arg_name = gtk_arg_name_strip_type (arg->name);
if (arg_name &&
arg_name[n] == ':' &&
arg_name[n + 1] == ':' &&
arg_name[n + 2] != 0)
{
gtk_signal_connect_full (object,
arg_name + n + 2,
GTK_VALUE_SIGNAL (*arg).f, NULL,
GTK_VALUE_SIGNAL (*arg).d,
NULL,
(arg_id == ARG_OBJECT_SIGNAL ||
arg_id == ARG_OBJECT_SIGNAL_AFTER),
(arg_id == ARG_OBJECT_SIGNAL_AFTER ||
arg_id == ARG_SIGNAL_AFTER));
}
else
g_warning ("gtk_object_set_arg(): invalid signal argument: \"%s\"\n", arg->name);
break;
default:
break;
}
}
static void
gtk_object_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
switch (arg_id)
{
case ARG_USER_DATA:
GTK_VALUE_POINTER (*arg) = gtk_object_get_user_data (object);
break;
case ARG_SIGNAL:
case ARG_OBJECT_SIGNAL:
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
/*****************************************
* gtk_object_class_add_signals:
*
* arguments:
*
* results:
*****************************************/
void
gtk_object_class_add_signals (GtkObjectClass *class,
guint *signals,
guint nsignals)
{
g_return_if_fail (GTK_IS_OBJECT_CLASS (class));
if (!nsignals)
return;
g_return_if_fail (signals != NULL);
class->signals = g_renew (guint, class->signals, class->nsignals + nsignals);
memcpy (class->signals + class->nsignals, signals, nsignals * sizeof (guint));
class->nsignals += nsignals;
}
guint
gtk_object_class_user_signal_new (GtkObjectClass *class,
const gchar *name,
GtkSignalRunType signal_flags,
GtkSignalMarshaller marshaller,
GtkType return_val,
guint nparams,
...)
{
GtkType *params;
guint i;
va_list args;
guint signal_id;
g_return_val_if_fail (class != NULL, 0);
if (nparams > 0)
{
params = g_new (GtkType, nparams);
va_start (args, nparams);
for (i = 0; i < nparams; i++)
params[i] = va_arg (args, GtkType);
va_end (args);
}
else
params = NULL;
signal_id = gtk_signal_newv (name,
signal_flags,
GTK_CLASS_TYPE (class),
0,
marshaller,
return_val,
nparams,
params);
g_free (params);
if (signal_id)
gtk_object_class_add_signals (class, &signal_id, 1);
return signal_id;
}
guint
gtk_object_class_user_signal_newv (GtkObjectClass *class,
const gchar *name,
GtkSignalRunType signal_flags,
GtkSignalMarshaller marshaller,
GtkType return_val,
guint nparams,
GtkType *params)
{
guint signal_id;
g_return_val_if_fail (class != NULL, 0);
if (nparams > 0)
g_return_val_if_fail (params != NULL, 0);
signal_id = gtk_signal_newv (name,
signal_flags,
GTK_CLASS_TYPE (class),
0,
marshaller,
return_val,
nparams,
params);
if (signal_id)
gtk_object_class_add_signals (class, &signal_id, 1);
return signal_id;
}
/*****************************************
* gtk_object_sink:
*
* arguments:
*
* results:
*****************************************/
void
gtk_object_sink (GtkObject *object)
{
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
if (GTK_OBJECT_FLOATING (object))
{
GTK_OBJECT_UNSET_FLAGS (object, GTK_FLOATING);
gtk_object_unref (object);
}
}
/*****************************************
* Weak references.
*
* Weak refs are very similar to the old "destroy" signal. They allow
* one to register a callback that is called when the weakly
* referenced object is finalized.
*
* They are not implemented as a signal because they really are
* special and need to be used with great care. Unlike signals, which
* should be able to execute any code whatsoever.
*
* A weakref callback is not allowed to retain a reference to the
* object. Object data keys may be retrieved in a weak reference
* callback.
*
* A weakref callback is called at most once.
*
*****************************************/
typedef struct _GtkWeakRef GtkWeakRef;
struct _GtkWeakRef
{
GtkWeakRef *next;
GtkDestroyNotify notify;
gpointer data;
};
void
gtk_object_weakref (GtkObject *object,
GtkDestroyNotify notify,
gpointer data)
{
GtkWeakRef *weak;
g_return_if_fail (object != NULL);
g_return_if_fail (notify != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
if (!quark_weakrefs)
quark_weakrefs = g_quark_from_static_string ("gtk-weakrefs");
weak = g_new (GtkWeakRef, 1);
weak->next = gtk_object_get_data_by_id (object, quark_weakrefs);
weak->notify = notify;
weak->data = data;
gtk_object_set_data_by_id (object, quark_weakrefs, weak);
}
void
gtk_object_weakunref (GtkObject *object,
GtkDestroyNotify notify,
gpointer data)
{
GtkWeakRef *weaks, *w, **wp;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
if (!quark_weakrefs)
return;
weaks = gtk_object_get_data_by_id (object, quark_weakrefs);
for (wp = &weaks; *wp; wp = &(*wp)->next)
{
w = *wp;
if (w->notify == notify && w->data == data)
{
if (w == weaks)
gtk_object_set_data_by_id (object, quark_weakrefs, w->next);
else
*wp = w->next;
g_free (w);
return;
}
}
}
static void
gtk_object_notify_weaks (GtkObject *object)
{
if (quark_weakrefs)
{
GtkWeakRef *w1, *w2;
w1 = gtk_object_get_data_by_id (object, quark_weakrefs);
while (w1)
{
w1->notify (w1->data);
w2 = w1->next;
g_free (w1);
w1 = w2;
}
}
}
/****************************************************
* GtkObject argument mechanism and object creation
*
****************************************************/
GtkObject*
gtk_object_new (GtkType object_type,
const gchar *first_arg_name,
...)
{
GtkObject *object;
va_list var_args;
GSList *arg_list = NULL;
GSList *info_list = NULL;
gchar *error;
g_return_val_if_fail (GTK_TYPE_IS_OBJECT (object_type), NULL);
object = gtk_type_new (object_type);
va_start (var_args, first_arg_name);
error = gtk_object_args_collect (GTK_OBJECT_TYPE (object),
&arg_list,
&info_list,
first_arg_name,
var_args);
va_end (var_args);
if (error)
{
g_warning ("gtk_object_new(): %s", error);
g_free (error);
}
else
{
GSList *slist_arg;
GSList *slist_info;
slist_arg = arg_list;
slist_info = info_list;
while (slist_arg)
{
gtk_object_arg_set (object, slist_arg->data, slist_info->data);
slist_arg = slist_arg->next;
slist_info = slist_info->next;
}
gtk_args_collect_cleanup (arg_list, info_list);
}
if (!GTK_OBJECT_CONSTRUCTED (object))
gtk_object_default_construct (object);
return object;
}
GtkObject*
gtk_object_newv (GtkType object_type,
guint n_args,
GtkArg *args)
{
GtkObject *object;
GtkArg *max_args;
g_return_val_if_fail (GTK_TYPE_IS_OBJECT (object_type), NULL);
if (n_args)
g_return_val_if_fail (args != NULL, NULL);
object = gtk_type_new (object_type);
for (max_args = args + n_args; args < max_args; args++)
gtk_object_arg_set (object, args, NULL);
if (!GTK_OBJECT_CONSTRUCTED (object))
gtk_object_default_construct (object);
return object;
}
void
gtk_object_setv (GtkObject *object,
guint n_args,
GtkArg *args)
{
GtkArg *max_args;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
if (n_args)
g_return_if_fail (args != NULL);
for (max_args = args + n_args; args < max_args; args++)
gtk_object_arg_set (object, args, NULL);
}
void
gtk_object_getv (GtkObject *object,
guint n_args,
GtkArg *args)
{
GtkArg *max_args;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
if (n_args)
g_return_if_fail (args != NULL);
for (max_args = args + n_args; args < max_args; args++)
gtk_object_arg_get (object, args, NULL);
}
void
gtk_object_get (GtkObject *object,
const gchar *first_arg_name,
...)
{
va_list var_args;
gchar *name;
g_return_if_fail (GTK_IS_OBJECT (object));
va_start (var_args, first_arg_name);
name = (gchar*) first_arg_name;
while (name)
{
gpointer value_pointer = va_arg (var_args, gpointer);
if (value_pointer)
{
GtkArgInfo *info;
gchar *error;
GtkArg arg;
error = gtk_arg_get_info (GTK_OBJECT_TYPE (object),
object_arg_info_ht,
name,
&info);
if (error)
{
g_warning ("gtk_object_get(): %s", error);
g_free (error);
return;
}
arg.name = name;
gtk_object_arg_get (object, &arg, info);
gtk_arg_to_valueloc (&arg, value_pointer);
}
name = va_arg (var_args, gchar*);
}
}
void
gtk_object_set (GtkObject *object,
const gchar *first_arg_name,
...)
{
va_list var_args;
GSList *arg_list = NULL;
GSList *info_list = NULL;
gchar *error;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
va_start (var_args, first_arg_name);
error = gtk_object_args_collect (GTK_OBJECT_TYPE (object),
&arg_list,
&info_list,
first_arg_name,
var_args);
va_end (var_args);
if (error)
{
g_warning ("gtk_object_set(): %s", error);
g_free (error);
}
else
{
GSList *slist_arg;
GSList *slist_info;
slist_arg = arg_list;
slist_info = info_list;
while (slist_arg)
{
gtk_object_arg_set (object, slist_arg->data, slist_info->data);
slist_arg = slist_arg->next;
slist_info = slist_info->next;
}
gtk_args_collect_cleanup (arg_list, info_list);
}
}
void
gtk_object_arg_set (GtkObject *object,
GtkArg *arg,
GtkArgInfo *info)
{
GtkObjectClass *oclass;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (arg != NULL);
if (!info)
{
gchar *error;
error = gtk_arg_get_info (GTK_OBJECT_TYPE (object),
object_arg_info_ht,
arg->name,
&info);
if (error)
{
g_warning ("gtk_object_arg_set(): %s", error);
g_free (error);
return;
}
}
if (info->arg_flags & GTK_ARG_CONSTRUCT_ONLY &&
GTK_OBJECT_CONSTRUCTED (object))
{
g_warning ("gtk_object_arg_set(): cannot set argument \"%s\" for constructed object",
info->full_name);
return;
}
if (!(info->arg_flags & GTK_ARG_WRITABLE))
{
g_warning ("gtk_object_arg_set(): argument \"%s\" is not writable",
info->full_name);
return;
}
if (info->type != arg->type)
{
g_warning ("gtk_object_arg_set(): argument \"%s\" has invalid type `%s'",
info->full_name,
gtk_type_name (arg->type));
return;
}
oclass = gtk_type_class (info->class_type);
g_assert (oclass->set_arg != NULL);
oclass->set_arg (object, arg, info->arg_id);
if (!GTK_OBJECT_CONSTRUCTED (object) &&
(info->arg_flags & GTK_ARG_CONSTRUCT_ONLY ||
info->arg_flags & GTK_ARG_CONSTRUCT))
{
GSList *slist;
slist = gtk_object_get_data_by_id (object, quark_carg_history);
gtk_object_set_data_by_id (object,
quark_carg_history,
g_slist_prepend (slist, info));
}
}
void
gtk_object_arg_get (GtkObject *object,
GtkArg *arg,
GtkArgInfo *info)
{
GtkObjectClass *oclass;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (arg != NULL);
if (!info)
{
gchar *error;
error = gtk_arg_get_info (GTK_OBJECT_TYPE (object),
object_arg_info_ht,
arg->name,
&info);
if (error)
{
g_warning ("gtk_object_arg_get(): %s", error);
g_free (error);
arg->type = GTK_TYPE_INVALID;
return;
}
}
if (! (info->arg_flags & GTK_ARG_READABLE))
{
g_warning ("gtk_object_arg_get(): argument \"%s\" is not readable",
info->full_name);
arg->type = GTK_TYPE_INVALID;
return;
}
oclass = gtk_type_class (info->class_type);
g_assert (oclass->get_arg != NULL);
arg->type = info->type;
oclass->get_arg (object, arg, info->arg_id);
}
void
gtk_object_default_construct (GtkObject *object)
{
GSList *slist;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
if (!GTK_OBJECT_CONSTRUCTED (object))
{
for (slist = GTK_OBJECT_GET_CLASS (object)->construct_args;
slist && !GTK_OBJECT_CONSTRUCTED (object);
slist = slist->next)
{
GSList *history;
GtkArgInfo *info;
info = slist->data;
history = gtk_object_get_data_by_id (object, quark_carg_history);
if (!g_slist_find (history, info))
{
GtkArg arg;
/* default application */
arg.type = info->type;
arg.name = info->name;
switch (G_TYPE_FUNDAMENTAL (arg.type))
{
case GTK_TYPE_FLOAT:
GTK_VALUE_FLOAT (arg) = 0.0;
break;
case GTK_TYPE_DOUBLE:
GTK_VALUE_DOUBLE (arg) = 0.0;
break;
case GTK_TYPE_BOXED:
case GTK_TYPE_STRING:
case GTK_TYPE_POINTER:
case G_TYPE_OBJECT:
GTK_VALUE_POINTER (arg) = NULL;
break;
default:
memset (&arg.d, 0, sizeof (arg.d));
break;
}
gtk_object_arg_set (object, &arg, info);
}
}
if (!GTK_OBJECT_CONSTRUCTED (object))
gtk_object_constructed (object);
}
}
void
gtk_object_constructed (GtkObject *object)
{
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (GTK_OBJECT_CONSTRUCTED (object) == FALSE);
g_slist_free (gtk_object_get_data_by_id (object, quark_carg_history));
gtk_object_set_data_by_id (object, quark_carg_history, NULL);
GTK_OBJECT_FLAGS (object) |= GTK_CONSTRUCTED;
}
void
gtk_object_add_arg_type (const char *arg_name,
GtkType arg_type,
guint arg_flags,
guint arg_id)
{
GtkArgInfo *info;
g_return_if_fail (arg_name != NULL);
g_return_if_fail (arg_type > GTK_TYPE_NONE);
g_return_if_fail (arg_id > 0);
g_return_if_fail ((arg_flags & GTK_ARG_CHILD_ARG) == 0);
if (arg_flags & GTK_ARG_CONSTRUCT)
g_return_if_fail ((arg_flags & GTK_ARG_READWRITE) == GTK_ARG_READWRITE);
else
g_return_if_fail ((arg_flags & GTK_ARG_READWRITE) != 0);
if (arg_flags & GTK_ARG_CONSTRUCT_ONLY)
g_return_if_fail ((arg_flags & GTK_ARG_WRITABLE) == GTK_ARG_WRITABLE);
if (!object_arg_info_ht)
object_arg_info_ht = g_hash_table_new (gtk_arg_info_hash,
gtk_arg_info_equal);
info = gtk_arg_type_new_static (GTK_TYPE_OBJECT,
arg_name,
GTK_STRUCT_OFFSET (GtkObjectClass, n_args),
object_arg_info_ht,
arg_type,
arg_flags,
arg_id);
if (info &&
(info->arg_flags & GTK_ARG_CONSTRUCT ||
info->arg_flags & GTK_ARG_CONSTRUCT_ONLY))
{
GtkObjectClass *class;
class = gtk_type_class (info->class_type);
if (info->arg_flags & GTK_ARG_CONSTRUCT_ONLY)
class->construct_args = g_slist_prepend (class->construct_args, info);
else
class->construct_args = g_slist_append (class->construct_args, info);
}
}
gchar*
gtk_object_args_collect (GtkType object_type,
GSList **arg_list_p,
GSList **info_list_p,
const gchar *first_arg_name,
va_list var_args)
{
return gtk_args_collect (object_type,
object_arg_info_ht,
arg_list_p,
info_list_p,
first_arg_name,
var_args);
}
gchar*
gtk_object_arg_get_info (GtkType object_type,
const gchar *arg_name,
GtkArgInfo **info_p)
{
return gtk_arg_get_info (object_type,
object_arg_info_ht,
arg_name,
info_p);
}
GtkArg*
gtk_object_query_args (GtkType class_type,
guint32 **arg_flags,
guint *n_args)
{
g_return_val_if_fail (n_args != NULL, NULL);
*n_args = 0;
g_return_val_if_fail (GTK_TYPE_IS_OBJECT (class_type), NULL);
return gtk_args_query (class_type, object_arg_info_ht, arg_flags, n_args);
}
/*****************************************
* GtkObject object_data mechanism
*
*****************************************/
void
gtk_object_set_data_by_id (GtkObject *object,
GQuark data_id,
gpointer data)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_datalist_id_set_data (&G_OBJECT (object)->qdata, data_id, data);
}
void
gtk_object_set_data (GtkObject *object,
const gchar *key,
gpointer data)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (key != NULL);
g_datalist_set_data (&G_OBJECT (object)->qdata, key, data);
}
void
gtk_object_set_data_by_id_full (GtkObject *object,
GQuark data_id,
gpointer data,
GtkDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_datalist_id_set_data_full (&G_OBJECT (object)->qdata, data_id, data, destroy);
}
void
gtk_object_set_data_full (GtkObject *object,
const gchar *key,
gpointer data,
GtkDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (key != NULL);
g_datalist_set_data_full (&G_OBJECT (object)->qdata, key, data, destroy);
}
gpointer
gtk_object_get_data_by_id (GtkObject *object,
GQuark data_id)
{
g_return_val_if_fail (GTK_IS_OBJECT (object), NULL);
return g_datalist_id_get_data (&G_OBJECT (object)->qdata, data_id);
}
gpointer
gtk_object_get_data (GtkObject *object,
const gchar *key)
{
g_return_val_if_fail (GTK_IS_OBJECT (object), NULL);
g_return_val_if_fail (key != NULL, NULL);
return g_datalist_get_data (&G_OBJECT (object)->qdata, key);
}
void
gtk_object_remove_data_by_id (GtkObject *object,
GQuark data_id)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_datalist_id_remove_data (&G_OBJECT (object)->qdata, data_id);
}
void
gtk_object_remove_data (GtkObject *object,
const gchar *key)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (key != NULL);
g_datalist_remove_data (&G_OBJECT (object)->qdata, key);
}
void
gtk_object_remove_no_notify_by_id (GtkObject *object,
GQuark key_id)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_datalist_id_remove_no_notify (&G_OBJECT (object)->qdata, key_id);
}
void
gtk_object_remove_no_notify (GtkObject *object,
const gchar *key)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (key != NULL);
g_datalist_remove_no_notify (&G_OBJECT (object)->qdata, key);
}
void
gtk_object_set_user_data (GtkObject *object,
gpointer data)
{
g_return_if_fail (GTK_IS_OBJECT (object));
if (!quark_user_data)
quark_user_data = g_quark_from_static_string ("user_data");
g_datalist_id_set_data (&G_OBJECT (object)->qdata, quark_user_data, data);
}
gpointer
gtk_object_get_user_data (GtkObject *object)
{
g_return_val_if_fail (GTK_IS_OBJECT (object), NULL);
return g_datalist_id_get_data (&G_OBJECT (object)->qdata, quark_user_data);
}
GtkObject*
gtk_object_ref (GtkObject *object)
{
g_return_val_if_fail (GTK_IS_OBJECT (object), NULL);
return (GtkObject*) g_object_ref ((GObject*) object);
}
void
gtk_object_unref (GtkObject *object)
{
g_return_if_fail (GTK_IS_OBJECT (object));
g_object_unref ((GObject*) object);
}
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