forked from AuroraMiddleware/gtk
256 lines
6.9 KiB
C
256 lines
6.9 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "gtktypeutils.h"
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#include "gtkobject.h"
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/* --- functions --- */
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GtkType
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gtk_type_unique (GtkType parent_type,
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const GtkTypeInfo *gtkinfo)
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{
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GTypeInfo tinfo = { 0, };
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g_return_val_if_fail (GTK_TYPE_IS_OBJECT (parent_type), 0);
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g_return_val_if_fail (gtkinfo != NULL, 0);
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g_return_val_if_fail (gtkinfo->type_name != NULL, 0);
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g_return_val_if_fail (g_type_from_name (gtkinfo->type_name) == 0, 0);
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tinfo.class_size = gtkinfo->class_size;
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tinfo.base_init = gtkinfo->base_class_init_func;
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tinfo.base_finalize = NULL;
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tinfo.class_init = (GClassInitFunc) gtkinfo->class_init_func;
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tinfo.class_finalize = NULL;
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tinfo.class_data = NULL;
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tinfo.instance_size = gtkinfo->object_size;
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tinfo.n_preallocs = 0;
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tinfo.instance_init = gtkinfo->object_init_func;
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return g_type_register_static (parent_type, gtkinfo->type_name, &tinfo);
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}
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gpointer
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gtk_type_class (GtkType type)
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{
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static GQuark quark_static_class = 0;
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gpointer class;
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if (!G_TYPE_IS_ENUM (type) && !G_TYPE_IS_FLAGS (type))
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g_return_val_if_fail (GTK_TYPE_IS_OBJECT (type), NULL);
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/* ok, this is a bit ugly, GLib reference counts classes,
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* and gtk_type_class() used to always return static classes.
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* while we coud be faster with just peeking the glib class
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* for the normal code path, we can't be sure that that
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* class stays around (someone else might be holding the
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* reference count and is going to drop it later). so to
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* ensure that Gtk actually holds a static reference count
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* on the class, we use GType qdata to store referenced
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* classes, and only return those.
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*/
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class = g_type_get_qdata (type, quark_static_class);
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if (!class)
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{
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if (!quark_static_class)
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quark_static_class = g_quark_from_static_string ("GtkStaticTypeClass");
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class = g_type_class_ref (type);
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g_assert (class != NULL);
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g_type_set_qdata (type, quark_static_class, class);
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}
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return class;
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}
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gpointer
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gtk_type_new (GtkType type)
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{
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gpointer object;
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g_return_val_if_fail (GTK_TYPE_IS_OBJECT (type), NULL);
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object = g_type_create_instance (type);
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return object;
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}
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/* includes for various places
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* with enum definitions
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*/
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#include "makeenums.h"
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/* type variable declarations
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*/
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#include "gtktypebuiltins_vars.c"
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GType GTK_TYPE_IDENTIFIER = 0;
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#include "gtktypebuiltins_evals.c" /* enum value definition arrays */
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/* Hack to communicate with GLib object debugging for now
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*/
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extern gboolean glib_debug_objects;
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void
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gtk_type_init (void)
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{
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static gboolean initialized = FALSE;
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if (!initialized)
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{
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static const struct {
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GtkType type_id;
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gchar *name;
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} fundamental_info[] = {
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{ GTK_TYPE_POINTER, "gpointer" },
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{ GTK_TYPE_SIGNAL, "GtkSignal" },
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};
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static struct {
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gchar *type_name;
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GtkType *type_id;
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GtkType parent;
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const GtkEnumValue *values;
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} builtin_info[GTK_TYPE_N_BUILTINS + 1] = {
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#include "gtktypebuiltins_ids.c" /* type entries */
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{ NULL }
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};
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GTypeFundamentalInfo finfo = { 0, };
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GTypeInfo tinfo = { 0, };
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GtkType type_id;
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guint i;
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initialized = TRUE;
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glib_debug_objects = gtk_debug_flags & GTK_DEBUG_OBJECTS != 0;
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/* initialize GLib type system
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*/
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g_type_init ();
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/* GTK_TYPE_OBJECT
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*/
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gtk_object_get_type ();
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/* compatibility fundamentals
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*/
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for (i = 0; i < sizeof (fundamental_info) / sizeof (fundamental_info[0]); i++)
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{
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type_id = g_type_register_fundamental (fundamental_info[i].type_id,
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fundamental_info[i].name,
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&tinfo,
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&finfo);
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g_assert (type_id == fundamental_info[i].type_id);
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}
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/* GTK_TYPE_IDENTIFIER
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*/
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GTK_TYPE_IDENTIFIER = g_type_register_static (G_TYPE_STRING, "GtkIdentifier", &tinfo);
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/* GTK_TYPE_BOXED
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*/
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finfo.type_flags = G_TYPE_FLAG_DERIVABLE;
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type_id = g_type_register_fundamental (GTK_TYPE_BOXED, "GtkBoxed", &tinfo, &finfo);
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g_assert (type_id == GTK_TYPE_BOXED);
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/* enums and flags
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*/
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for (i = 0; i < GTK_TYPE_N_BUILTINS; i++)
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{
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GtkType type_id = 0;
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if (builtin_info[i].parent == G_TYPE_ENUM)
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type_id = g_enum_register_static (builtin_info[i].type_name, builtin_info[i].values);
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else if (builtin_info[i].parent == G_TYPE_FLAGS)
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type_id = g_flags_register_static (builtin_info[i].type_name, (const GFlagsValue *)builtin_info[i].values);
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else if (builtin_info[i].parent == GTK_TYPE_BOXED)
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type_id = g_type_register_static (GTK_TYPE_BOXED, builtin_info[i].type_name, &tinfo);
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else
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g_assert_not_reached ();
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*builtin_info[i].type_id = type_id;
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}
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}
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}
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GtkEnumValue*
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gtk_type_enum_get_values (GtkType enum_type)
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{
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GEnumClass *class;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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class = gtk_type_class (enum_type);
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return class->values;
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}
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GtkFlagValue*
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gtk_type_flags_get_values (GtkType flags_type)
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{
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GFlagsClass *class;
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g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
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class = gtk_type_class (flags_type);
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return class->values;
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}
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GtkEnumValue*
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gtk_type_enum_find_value (GtkType enum_type,
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const gchar *value_name)
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{
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GtkEnumValue *value;
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GEnumClass *class;
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g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
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g_return_val_if_fail (value_name != NULL, NULL);
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class = gtk_type_class (enum_type);
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value = g_enum_get_value_by_name (class, value_name);
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if (!value)
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value = g_enum_get_value_by_nick (class, value_name);
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return value;
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}
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GtkFlagValue*
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gtk_type_flags_find_value (GtkType flags_type,
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const gchar *value_name)
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{
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GtkFlagValue *value;
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GFlagsClass *class;
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g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
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g_return_val_if_fail (value_name != NULL, NULL);
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class = gtk_type_class (flags_type);
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value = g_flags_get_value_by_name (class, value_name);
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if (!value)
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value = g_flags_get_value_by_nick (class, value_name);
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return value;
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}
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