1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 *
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.
8 *
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.
13 *
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.
18 */
19
20 /*
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/.
25 */
26
27 #undef GTK_DISABLE_DEPRECATED
28
29 #include "config.h"
30 #include <string.h> /* strcmp */
31
32 #include "gtktypeutils.h"
33 #include "gtkobject.h"
34 #include "gtkintl.h"
35 #include "gtkalias.h"
36
37
38 /* --- functions --- */
39 GtkType
gtk_type_unique(GtkType parent_type,const GtkTypeInfo * gtkinfo)40 gtk_type_unique (GtkType parent_type,
41 const GtkTypeInfo *gtkinfo)
42 {
43 GTypeInfo tinfo = { 0, };
44
45 g_return_val_if_fail (GTK_TYPE_IS_OBJECT (parent_type), 0);
46 g_return_val_if_fail (gtkinfo != NULL, 0);
47 g_return_val_if_fail (gtkinfo->type_name != NULL, 0);
48 g_return_val_if_fail (g_type_from_name (gtkinfo->type_name) == 0, 0);
49
50 tinfo.class_size = gtkinfo->class_size;
51 tinfo.base_init = gtkinfo->base_class_init_func;
52 tinfo.base_finalize = NULL;
53 tinfo.class_init = (GClassInitFunc) gtkinfo->class_init_func;
54 tinfo.class_finalize = NULL;
55 tinfo.class_data = NULL;
56 tinfo.instance_size = gtkinfo->object_size;
57 tinfo.n_preallocs = 0;
58 tinfo.instance_init = gtkinfo->object_init_func;
59
60 return g_type_register_static (parent_type, gtkinfo->type_name, &tinfo, 0);
61 }
62
63 /**
64 * gtk_type_class
65 * @type: a #GtkType.
66 *
67 * Returns a pointer pointing to the class of @type or %NULL if there
68 * was any trouble identifying @type. Initializes the class if
69 * necessary.
70 *
71 * Returns: pointer to the class.
72 *
73 * Deprecated: 2.14: Use g_type_class_peek() or g_type_class_ref() instead.
74 **/
75 gpointer
gtk_type_class(GtkType type)76 gtk_type_class (GtkType type)
77 {
78 static GQuark quark_static_class = 0;
79 gpointer class;
80
81 if (!G_TYPE_IS_ENUM (type) && !G_TYPE_IS_FLAGS (type))
82 g_return_val_if_fail (G_TYPE_IS_OBJECT (type), NULL);
83
84 /* ok, this is a bit ugly, GLib reference counts classes,
85 * and gtk_type_class() used to always return static classes.
86 * while we coud be faster with just peeking the glib class
87 * for the normal code path, we can't be sure that that
88 * class stays around (someone else might be holding the
89 * reference count and is going to drop it later). so to
90 * ensure that Gtk actually holds a static reference count
91 * on the class, we use GType qdata to store referenced
92 * classes, and only return those.
93 */
94
95 class = g_type_get_qdata (type, quark_static_class);
96 if (!class)
97 {
98 if (!quark_static_class)
99 quark_static_class = g_quark_from_static_string ("GtkStaticTypeClass");
100
101 class = g_type_class_ref (type);
102 g_assert (class != NULL);
103 g_type_set_qdata (type, quark_static_class, class);
104 }
105
106 return class;
107 }
108
109 gpointer
gtk_type_new(GtkType type)110 gtk_type_new (GtkType type)
111 {
112 gpointer object;
113
114 g_return_val_if_fail (GTK_TYPE_IS_OBJECT (type), NULL);
115
116 object = g_object_new (type, NULL);
117
118 return object;
119 }
120
121 void
gtk_type_init(GTypeDebugFlags debug_flags)122 gtk_type_init (GTypeDebugFlags debug_flags)
123 {
124 static gboolean initialized = FALSE;
125
126 if (!initialized)
127 {
128 GType unused;
129
130 initialized = TRUE;
131
132 /* initialize GLib type system
133 */
134 g_type_init_with_debug_flags (debug_flags);
135
136 /* GTK_TYPE_OBJECT
137 */
138 unused = gtk_object_get_type ();
139 }
140 }
141
142 GType
gtk_identifier_get_type(void)143 gtk_identifier_get_type (void)
144 {
145 static GType our_type = 0;
146
147 if (our_type == 0)
148 {
149 GTypeInfo tinfo = { 0, };
150 our_type = g_type_register_static (G_TYPE_STRING, I_("GtkIdentifier"), &tinfo, 0);
151 }
152
153 return our_type;
154 }
155
156 GtkEnumValue*
gtk_type_enum_get_values(GtkType enum_type)157 gtk_type_enum_get_values (GtkType enum_type)
158 {
159 GEnumClass *class;
160
161 g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
162
163 class = gtk_type_class (enum_type);
164
165 return class->values;
166 }
167
168 GtkFlagValue*
gtk_type_flags_get_values(GtkType flags_type)169 gtk_type_flags_get_values (GtkType flags_type)
170 {
171 GFlagsClass *class;
172
173 g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
174
175 class = gtk_type_class (flags_type);
176
177 return class->values;
178 }
179
180 GtkEnumValue*
gtk_type_enum_find_value(GtkType enum_type,const gchar * value_name)181 gtk_type_enum_find_value (GtkType enum_type,
182 const gchar *value_name)
183 {
184 GtkEnumValue *value;
185 GEnumClass *class;
186
187 g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
188 g_return_val_if_fail (value_name != NULL, NULL);
189
190 class = gtk_type_class (enum_type);
191 value = g_enum_get_value_by_name (class, value_name);
192 if (!value)
193 value = g_enum_get_value_by_nick (class, value_name);
194
195 return value;
196 }
197
198 GtkFlagValue*
gtk_type_flags_find_value(GtkType flags_type,const gchar * value_name)199 gtk_type_flags_find_value (GtkType flags_type,
200 const gchar *value_name)
201 {
202 GtkFlagValue *value;
203 GFlagsClass *class;
204
205 g_return_val_if_fail (G_TYPE_IS_FLAGS (flags_type), NULL);
206 g_return_val_if_fail (value_name != NULL, NULL);
207
208 class = gtk_type_class (flags_type);
209 value = g_flags_get_value_by_name (class, value_name);
210 if (!value)
211 value = g_flags_get_value_by_nick (class, value_name);
212
213 return value;
214 }
215
216
217 #define __GTK_TYPE_UTILS_C__
218 #include "gtkaliasdef.c"
219