 a504db9e83
			
		
	
	a504db9e83
	
	
	
		
			
			Fri Feb 22 18:36:45 2002 Owen Taylor <otaylor@redhat.com> Fixes for AIX compilation from Miroslaw Dobrzanski-Neumann, #72182. * demos/gtk-demo/main.c gtk/gtktreeview.c gtk/gtktoolbar.c gtk/gtkpaned.c gtk/gtkobject.c gtk/gtkcontainer.c gtk/gtkcolorsel.c gtk/gtkcellrender.c gdk/x11/xsettings-client.h: Squash trailing commas on enumerations. * gdk/gdktypes.h: Drop GDK_RELEASE_MASK to 1 << 30 instead of 1 << 31 to work around AIX compiler problem. (C standard seems to imply that compiler is required to use an unsigned type for the enum value in this case.) * gdk/gdkpixbuf-drawable.c: Fix lvalue casts. * gtk/gtkwindow.h: Fix use of enum types for bitfields ... compilers may choose to use a signed type for bitfields.
		
			
				
	
	
		
			746 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			746 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* 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 "gtkmarshalers.h"
 | |
| #include "gtksignal.h"
 | |
| 
 | |
| 
 | |
| enum {
 | |
|   DESTROY,
 | |
|   LAST_SIGNAL
 | |
| };
 | |
| enum {
 | |
|   PROP_0,
 | |
|   PROP_USER_DATA
 | |
| };
 | |
| 
 | |
| 
 | |
| 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_property	 (GObject	 *object,
 | |
| 						  guint           property_id,
 | |
| 						  const GValue   *value,
 | |
| 						  GParamSpec     *pspec);
 | |
| static void	  gtk_object_get_property	 (GObject	 *object,
 | |
| 						  guint           property_id,
 | |
| 						  GValue         *value,
 | |
| 						  GParamSpec     *pspec);
 | |
| static void       gtk_object_dispose            (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 GQuark      quark_user_data = 0;
 | |
| static GQuark      quark_weakrefs = 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, 0);
 | |
|     }
 | |
| 
 | |
|   return object_type;
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_object_base_class_init (GtkObjectClass *class)
 | |
| {
 | |
|   /* 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)
 | |
| {
 | |
| }
 | |
| 
 | |
| static inline gboolean
 | |
| gtk_arg_set_from_value (GtkArg       *arg,
 | |
| 			const GValue *value,
 | |
| 			gboolean      copy_string)
 | |
| {
 | |
|   switch (G_TYPE_FUNDAMENTAL (arg->type))
 | |
|     {
 | |
|     case G_TYPE_CHAR:           GTK_VALUE_CHAR (*arg) = g_value_get_char (value);       break;
 | |
|     case G_TYPE_UCHAR:          GTK_VALUE_UCHAR (*arg) = g_value_get_uchar (value);     break;
 | |
|     case G_TYPE_BOOLEAN:        GTK_VALUE_BOOL (*arg) = g_value_get_boolean (value);    break;
 | |
|     case G_TYPE_INT:            GTK_VALUE_INT (*arg) = g_value_get_int (value);         break;
 | |
|     case G_TYPE_UINT:           GTK_VALUE_UINT (*arg) = g_value_get_uint (value);       break;
 | |
|     case G_TYPE_LONG:           GTK_VALUE_LONG (*arg) = g_value_get_long (value);       break;
 | |
|     case G_TYPE_ULONG:          GTK_VALUE_ULONG (*arg) = g_value_get_ulong (value);     break;
 | |
|     case G_TYPE_ENUM:           GTK_VALUE_ENUM (*arg) = g_value_get_enum (value);       break;
 | |
|     case G_TYPE_FLAGS:          GTK_VALUE_FLAGS (*arg) = g_value_get_flags (value);     break;
 | |
|     case G_TYPE_FLOAT:          GTK_VALUE_FLOAT (*arg) = g_value_get_float (value);     break;
 | |
|     case G_TYPE_DOUBLE:         GTK_VALUE_DOUBLE (*arg) = g_value_get_double (value);   break;
 | |
|     case G_TYPE_BOXED:          GTK_VALUE_BOXED (*arg) = g_value_get_boxed (value);     break;
 | |
|     case G_TYPE_POINTER:        GTK_VALUE_POINTER (*arg) = g_value_get_pointer (value); break;
 | |
|     case G_TYPE_OBJECT:         GTK_VALUE_POINTER (*arg) = g_value_get_object (value);  break;
 | |
|     case G_TYPE_STRING:         if (copy_string)
 | |
|       GTK_VALUE_STRING (*arg) = g_value_dup_string (value);
 | |
|     else
 | |
|       GTK_VALUE_STRING (*arg) = (char *) g_value_get_string (value);
 | |
|     break;
 | |
|     default:
 | |
|       return FALSE;
 | |
|     }
 | |
|   return TRUE;
 | |
| }
 | |
| 
 | |
| static inline gboolean
 | |
| gtk_arg_to_value (GtkArg *arg,
 | |
| 		  GValue *value)
 | |
| {
 | |
|   switch (G_TYPE_FUNDAMENTAL (arg->type))
 | |
|     {
 | |
|     case G_TYPE_CHAR:           g_value_set_char (value, GTK_VALUE_CHAR (*arg));        break;
 | |
|     case G_TYPE_UCHAR:          g_value_set_uchar (value, GTK_VALUE_UCHAR (*arg));      break;
 | |
|     case G_TYPE_BOOLEAN:        g_value_set_boolean (value, GTK_VALUE_BOOL (*arg));     break;
 | |
|     case G_TYPE_INT:            g_value_set_int (value, GTK_VALUE_INT (*arg));          break;
 | |
|     case G_TYPE_UINT:           g_value_set_uint (value, GTK_VALUE_UINT (*arg));        break;
 | |
|     case G_TYPE_LONG:           g_value_set_long (value, GTK_VALUE_LONG (*arg));        break;
 | |
|     case G_TYPE_ULONG:          g_value_set_ulong (value, GTK_VALUE_ULONG (*arg));      break;
 | |
|     case G_TYPE_ENUM:           g_value_set_enum (value, GTK_VALUE_ENUM (*arg));        break;
 | |
|     case G_TYPE_FLAGS:          g_value_set_flags (value, GTK_VALUE_FLAGS (*arg));      break;
 | |
|     case G_TYPE_FLOAT:          g_value_set_float (value, GTK_VALUE_FLOAT (*arg));      break;
 | |
|     case G_TYPE_DOUBLE:         g_value_set_double (value, GTK_VALUE_DOUBLE (*arg));    break;
 | |
|     case G_TYPE_STRING:         g_value_set_string (value, GTK_VALUE_STRING (*arg));    break;
 | |
|     case G_TYPE_BOXED:          g_value_set_boxed (value, GTK_VALUE_BOXED (*arg));      break;
 | |
|     case G_TYPE_POINTER:        g_value_set_pointer (value, GTK_VALUE_POINTER (*arg));  break;
 | |
|     case G_TYPE_OBJECT:         g_value_set_object (value, GTK_VALUE_POINTER (*arg));   break;
 | |
|     default:
 | |
|       return FALSE;
 | |
|     }
 | |
|   return TRUE;
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_arg_proxy_set_property (GObject      *object,
 | |
| 			    guint         property_id,
 | |
| 			    const GValue *value,
 | |
| 			    GParamSpec   *pspec)
 | |
| {
 | |
|   GtkObjectClass *class = g_type_class_peek (pspec->owner_type);
 | |
|   GtkArg arg;
 | |
| 
 | |
|   g_return_if_fail (class->set_arg != NULL);
 | |
| 
 | |
|   memset (&arg, 0, sizeof (arg));
 | |
|   arg.type = G_VALUE_TYPE (value);
 | |
|   gtk_arg_set_from_value (&arg, value, FALSE);
 | |
|   arg.name = pspec->name;
 | |
|   class->set_arg (GTK_OBJECT (object), &arg, property_id);
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_arg_proxy_get_property (GObject     *object,
 | |
| 			    guint        property_id,
 | |
| 			    GValue      *value,
 | |
| 			    GParamSpec  *pspec)
 | |
| {
 | |
|   GtkObjectClass *class = g_type_class_peek (pspec->owner_type);
 | |
|   GtkArg arg;
 | |
| 
 | |
|   g_return_if_fail (class->get_arg != NULL);
 | |
| 
 | |
|   memset (&arg, 0, sizeof (arg));
 | |
|   arg.type = G_VALUE_TYPE (value);
 | |
|   arg.name = pspec->name;
 | |
|   class->get_arg (GTK_OBJECT (object), &arg, property_id);
 | |
|   gtk_arg_to_value (&arg, value);
 | |
| }
 | |
| 
 | |
| void
 | |
| gtk_object_add_arg_type (const gchar *arg_name,
 | |
| 			 GtkType      arg_type,
 | |
| 			 guint        arg_flags,
 | |
| 			 guint        arg_id)
 | |
| {
 | |
|   GObjectClass *oclass;
 | |
|   GParamSpec *pspec;
 | |
|   gchar *type_name, *pname;
 | |
|   GType type;
 | |
|   
 | |
|   g_return_if_fail (arg_name != NULL);
 | |
|   g_return_if_fail (arg_type > G_TYPE_NONE);
 | |
|   g_return_if_fail (arg_id > 0);
 | |
|   g_return_if_fail (arg_flags & GTK_ARG_READWRITE);
 | |
|   if (arg_flags & G_PARAM_CONSTRUCT)
 | |
|     g_return_if_fail ((arg_flags & G_PARAM_CONSTRUCT_ONLY) == 0);
 | |
|   if (arg_flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
 | |
|     g_return_if_fail (arg_flags & G_PARAM_WRITABLE);
 | |
|   g_return_if_fail ((arg_flags & ~(GTK_ARG_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY)) == 0);
 | |
| 
 | |
|   pname = strchr (arg_name, ':');
 | |
|   g_return_if_fail (pname && pname[1] == ':');
 | |
| 
 | |
|   type_name = g_strndup (arg_name, pname - arg_name);
 | |
|   pname += 2;
 | |
|   type = g_type_from_name (type_name);
 | |
|   g_free (type_name);
 | |
|   g_return_if_fail (G_TYPE_IS_OBJECT (type));
 | |
| 
 | |
|   oclass = gtk_type_class (type);
 | |
|   if (arg_flags & GTK_ARG_READABLE)
 | |
|     {
 | |
|       if (oclass->get_property && oclass->get_property != gtk_arg_proxy_get_property)
 | |
| 	{
 | |
| 	  g_warning (G_STRLOC ": GtkArg compatibility code can't be mixed with customized %s.get_property() implementation",
 | |
| 		     g_type_name (type));
 | |
| 	  return;
 | |
| 	}
 | |
|       oclass->get_property = gtk_arg_proxy_get_property;
 | |
|     }
 | |
|   if (arg_flags & GTK_ARG_WRITABLE)
 | |
|     {
 | |
|       if (oclass->set_property && oclass->set_property != gtk_arg_proxy_set_property)
 | |
| 	{
 | |
| 	  g_warning (G_STRLOC ": GtkArg compatibility code can't be mixed with customized %s.set_property() implementation",
 | |
| 		     g_type_name (type));
 | |
| 	  return;
 | |
| 	}
 | |
|       oclass->set_property = gtk_arg_proxy_set_property;
 | |
|     }
 | |
|   switch (G_TYPE_FUNDAMENTAL (arg_type))
 | |
|     {
 | |
|     case G_TYPE_ENUM:
 | |
|       pspec = g_param_spec_enum (pname, NULL, NULL, arg_type, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_FLAGS:
 | |
|       pspec = g_param_spec_flags (pname, NULL, NULL, arg_type, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_CHAR:
 | |
|       pspec = g_param_spec_char (pname, NULL, NULL, -128, 127, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_UCHAR:
 | |
|       pspec = g_param_spec_uchar (pname, NULL, NULL, 0, 255, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_BOOLEAN:
 | |
|       pspec = g_param_spec_boolean (pname, NULL, NULL, FALSE, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_INT:
 | |
|       pspec = g_param_spec_int (pname, NULL, NULL, -2147483647, 2147483647, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_UINT:
 | |
|       pspec = g_param_spec_uint (pname, NULL, NULL, 0, 4294967295U, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_FLOAT:
 | |
|       pspec = g_param_spec_float (pname, NULL, NULL, -1E+37, 1E+37, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_DOUBLE:
 | |
|       pspec = g_param_spec_double (pname, NULL, NULL, -1E+307, 1E+307, 0, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_STRING:
 | |
|       pspec = g_param_spec_string (pname, NULL, NULL, NULL, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_POINTER:
 | |
|       pspec = g_param_spec_pointer (pname, NULL, NULL, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_OBJECT:
 | |
|       pspec = g_param_spec_object (pname, NULL, NULL, arg_type, arg_flags);
 | |
|       break;
 | |
|     case G_TYPE_BOXED:
 | |
|       if (!G_TYPE_IS_FUNDAMENTAL (arg_type))
 | |
| 	{
 | |
| 	  pspec = g_param_spec_boxed (pname, NULL, NULL, arg_type, arg_flags);
 | |
| 	  break;
 | |
| 	}
 | |
|     default:
 | |
|       g_warning (G_STRLOC ": Property type `%s' is not supported by the GtkArg compatibility code",
 | |
| 		 g_type_name (arg_type));
 | |
|       return;
 | |
|     }
 | |
|   g_object_class_install_property (oclass, arg_id, pspec);
 | |
| }
 | |
| 
 | |
| 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->set_property = gtk_object_set_property;
 | |
|   gobject_class->get_property = gtk_object_get_property;
 | |
|   gobject_class->dispose = gtk_object_dispose;
 | |
|   gobject_class->finalize = gtk_object_finalize;
 | |
| 
 | |
|   class->destroy = gtk_object_real_destroy;
 | |
| 
 | |
|   g_object_class_install_property (gobject_class,
 | |
| 				   PROP_USER_DATA,
 | |
| 				   g_param_spec_pointer ("user_data", "User Data",
 | |
| 							 "Anonymous User Data Pointer",
 | |
| 							 G_PARAM_READABLE | G_PARAM_WRITABLE));
 | |
|   object_signals[DESTROY] =
 | |
|     gtk_signal_new ("destroy",
 | |
|                     G_SIGNAL_RUN_CLEANUP | G_SIGNAL_NO_RECURSE | GTK_RUN_NO_HOOKS,
 | |
|                     GTK_CLASS_TYPE (class),
 | |
|                     GTK_SIGNAL_OFFSET (GtkObjectClass, destroy),
 | |
|                     _gtk_marshal_VOID__VOID,
 | |
| 		    GTK_TYPE_NONE, 0);
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_object_init (GtkObject      *object,
 | |
| 		 GtkObjectClass *klass)
 | |
| {
 | |
|   GTK_OBJECT_FLAGS (object) = GTK_FLOATING;
 | |
| }
 | |
| 
 | |
| /********************************************
 | |
|  * 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));
 | |
|   
 | |
|   if (!(GTK_OBJECT_FLAGS (object) & GTK_IN_DESTRUCTION))
 | |
|     g_object_run_dispose (G_OBJECT (object));
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_object_dispose (GObject *gobject)
 | |
| {
 | |
|   GtkObject *object = GTK_OBJECT (gobject);
 | |
| 
 | |
|   /* guard against reinvocations during
 | |
|    * destruction with the GTK_IN_DESTRUCTION flag.
 | |
|    */
 | |
|   if (!(GTK_OBJECT_FLAGS (object) & GTK_IN_DESTRUCTION))
 | |
|     {
 | |
|       GTK_OBJECT_SET_FLAGS (object, GTK_IN_DESTRUCTION);
 | |
|       
 | |
|       gtk_signal_emit (object, object_signals[DESTROY]);
 | |
|       
 | |
|       GTK_OBJECT_UNSET_FLAGS (object, GTK_IN_DESTRUCTION);
 | |
|     }
 | |
| 
 | |
|   G_OBJECT_CLASS (parent_class)->dispose (gobject);
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_object_real_destroy (GtkObject *object)
 | |
| {
 | |
|   g_signal_handlers_destroy (G_OBJECT (object));
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_object_finalize (GObject *gobject)
 | |
| {
 | |
|   GtkObject *object = GTK_OBJECT (gobject);
 | |
| 
 | |
|   if (GTK_OBJECT_FLOATING (object))
 | |
|     {
 | |
|       g_warning ("A floating object was finalized. This means that someone\n"
 | |
| 		 "called g_object_unref() on an object that had only a floating\n"
 | |
| 		 "reference; the initial floating reference is not owned by anyone\n"
 | |
| 		 "and must be removed with gtk_object_sink() after a normal\n"
 | |
| 		 "reference is obtained with g_object_ref().");
 | |
|     }
 | |
|   
 | |
|   gtk_object_notify_weaks (object);
 | |
|   
 | |
|   G_OBJECT_CLASS (parent_class)->finalize (gobject);
 | |
| }
 | |
| 
 | |
| /*****************************************
 | |
|  * GtkObject argument handlers
 | |
|  *
 | |
|  *****************************************/
 | |
| 
 | |
| static void
 | |
| gtk_object_set_property (GObject      *object,
 | |
| 			 guint         property_id,
 | |
| 			 const GValue *value,
 | |
| 			 GParamSpec   *pspec)
 | |
| {
 | |
|   switch (property_id)
 | |
|     {
 | |
|     case PROP_USER_DATA:
 | |
|       gtk_object_set_user_data (GTK_OBJECT (object), g_value_get_pointer (value));
 | |
|       break;
 | |
|     default:
 | |
|       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 | |
|       break;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_object_get_property (GObject     *object,
 | |
| 			 guint        property_id,
 | |
| 			 GValue      *value,
 | |
| 			 GParamSpec  *pspec)
 | |
| {
 | |
|   switch (property_id)
 | |
|     {
 | |
|     case PROP_USER_DATA:
 | |
|       g_value_set_pointer (value, gtk_object_get_user_data (GTK_OBJECT (object)));
 | |
|       break;
 | |
|     default:
 | |
|       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 | |
|       break;
 | |
|     }
 | |
| }
 | |
| 
 | |
| /*****************************************
 | |
|  * gtk_object_sink:
 | |
|  *
 | |
|  *   arguments:
 | |
|  *
 | |
|  *   results:
 | |
|  *****************************************/
 | |
| 
 | |
| void
 | |
| gtk_object_sink (GtkObject *object)
 | |
| {
 | |
|   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 (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 (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*
 | |
| gtk_object_new (GtkType      object_type,
 | |
| 		const gchar *first_property_name,
 | |
| 		...)
 | |
| {
 | |
|   GtkObject *object;
 | |
|   va_list var_args;
 | |
| 
 | |
|   g_return_val_if_fail (GTK_TYPE_IS_OBJECT (object_type), NULL);
 | |
| 
 | |
|   va_start (var_args, first_property_name);
 | |
|   object = (GtkObject *)g_object_new_valist (object_type, first_property_name, var_args);
 | |
|   va_end (var_args);
 | |
| 
 | |
|   return object;
 | |
| }
 | |
| 
 | |
| void
 | |
| gtk_object_get (GtkObject   *object,
 | |
| 		const gchar *first_property_name,
 | |
| 		...)
 | |
| {
 | |
|   va_list var_args;
 | |
|   
 | |
|   g_return_if_fail (GTK_IS_OBJECT (object));
 | |
|   
 | |
|   va_start (var_args, first_property_name);
 | |
|   g_object_get_valist (G_OBJECT (object), first_property_name, var_args);
 | |
|   va_end (var_args);
 | |
| }
 | |
| 
 | |
| void
 | |
| gtk_object_set (GtkObject   *object,
 | |
| 		const gchar *first_property_name,
 | |
| 		...)
 | |
| {
 | |
|   va_list var_args;
 | |
|   
 | |
|   g_return_if_fail (GTK_IS_OBJECT (object));
 | |
|   
 | |
|   va_start (var_args, first_property_name);
 | |
|   g_object_set_valist (G_OBJECT (object), first_property_name, var_args);
 | |
|   va_end (var_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);
 | |
| }
 |