1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
27 #undef GTK_DISABLE_DEPRECATED
29 #include <string.h> /* strcmp */
31 #include "gtktypeutils.h"
32 #include "gtkobject.h"
35 /* --- functions --- */
37 gtk_type_unique (GtkType parent_type,
38 const GtkTypeInfo *gtkinfo)
40 GTypeInfo tinfo = { 0, };
42 g_return_val_if_fail (GTK_TYPE_IS_OBJECT (parent_type), 0);
43 g_return_val_if_fail (gtkinfo != NULL, 0);
44 g_return_val_if_fail (gtkinfo->type_name != NULL, 0);
45 g_return_val_if_fail (g_type_from_name (gtkinfo->type_name) == 0, 0);
47 tinfo.class_size = gtkinfo->class_size;
48 tinfo.base_init = gtkinfo->base_class_init_func;
49 tinfo.base_finalize = NULL;
50 tinfo.class_init = (GClassInitFunc) gtkinfo->class_init_func;
51 tinfo.class_finalize = NULL;
52 tinfo.class_data = NULL;
53 tinfo.instance_size = gtkinfo->object_size;
54 tinfo.n_preallocs = 0;
55 tinfo.instance_init = gtkinfo->object_init_func;
57 return g_type_register_static (parent_type, gtkinfo->type_name, &tinfo, 0);
61 gtk_type_class (GtkType type)
63 static GQuark quark_static_class = 0;
66 if (!G_TYPE_IS_ENUM (type) && !G_TYPE_IS_FLAGS (type))
67 g_return_val_if_fail (G_TYPE_IS_OBJECT (type), NULL);
69 /* ok, this is a bit ugly, GLib reference counts classes,
70 * and gtk_type_class() used to always return static classes.
71 * while we coud be faster with just peeking the glib class
72 * for the normal code path, we can't be sure that that
73 * class stays around (someone else might be holding the
74 * reference count and is going to drop it later). so to
75 * ensure that Gtk actually holds a static reference count
76 * on the class, we use GType qdata to store referenced
77 * classes, and only return those.
80 class = g_type_get_qdata (type, quark_static_class);
83 if (!quark_static_class)
84 quark_static_class = g_quark_from_static_string ("GtkStaticTypeClass");
86 class = g_type_class_ref (type);
87 g_assert (class != NULL);
88 g_type_set_qdata (type, quark_static_class, class);
95 gtk_type_new (GtkType type)
99 g_return_val_if_fail (GTK_TYPE_IS_OBJECT (type), NULL);
101 object = g_object_new (type, NULL);
107 gtk_type_init (GTypeDebugFlags debug_flags)
109 static gboolean initialized = FALSE;
115 /* initialize GLib type system
117 g_type_init_with_debug_flags (debug_flags);
121 gtk_object_get_type ();
126 gtk_identifier_get_type (void)
128 static GType our_type = 0;
132 GTypeInfo tinfo = { 0, };
133 our_type = g_type_register_static (G_TYPE_STRING, "GtkIdentifier", &tinfo, 0);
140 gtk_type_enum_get_values (GtkType enum_type)
144 g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
146 class = gtk_type_class (enum_type);
148 return class->values;
152 gtk_type_flags_get_values (GtkType flags_type)
156 g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
158 class = gtk_type_class (flags_type);
160 return class->values;
164 gtk_type_enum_find_value (GtkType enum_type,
165 const gchar *value_name)
170 g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
171 g_return_val_if_fail (value_name != NULL, NULL);
173 class = gtk_type_class (enum_type);
174 value = g_enum_get_value_by_name (class, value_name);
176 value = g_enum_get_value_by_nick (class, value_name);
182 gtk_type_flags_find_value (GtkType flags_type,
183 const gchar *value_name)
188 g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
189 g_return_val_if_fail (value_name != NULL, NULL);
191 class = gtk_type_class (flags_type);
192 value = g_flags_get_value_by_name (class, value_name);
194 value = g_flags_get_value_by_nick (class, value_name);