1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 1998-1999, 2000-2001 Tim Janik and Red Hat, Inc.
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
15 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 #if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
21 #error "Only <glib-object.h> can be included directly."
24 #include <gobject/gtype.h>
28 /* --- type macros --- */
33 * Checks whether @type "is a" %G_TYPE_ENUM.
35 * Returns: %TRUE if @type "is a" %G_TYPE_ENUM.
37 #define G_TYPE_IS_ENUM(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM)
40 * @class: a valid #GEnumClass
42 * Casts a derived #GEnumClass structure into a #GEnumClass structure.
44 #define G_ENUM_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_ENUM, GEnumClass))
47 * @class: a #GEnumClass
49 * Checks whether @class "is a" valid #GEnumClass structure of type %G_TYPE_ENUM
52 #define G_IS_ENUM_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_ENUM))
55 * @class: a #GEnumClass
57 * Get the type identifier from a given #GEnumClass structure.
61 #define G_ENUM_CLASS_TYPE(class) (G_TYPE_FROM_CLASS (class))
63 * G_ENUM_CLASS_TYPE_NAME:
64 * @class: a #GEnumClass
66 * Get the static type name from a given #GEnumClass structure.
68 * Returns: the type name.
70 #define G_ENUM_CLASS_TYPE_NAME(class) (g_type_name (G_ENUM_CLASS_TYPE (class)))
77 * Checks whether @type "is a" %G_TYPE_FLAGS.
79 * Returns: %TRUE if @type "is a" %G_TYPE_FLAGS.
81 #define G_TYPE_IS_FLAGS(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS)
84 * @class: a valid #GFlagsClass
86 * Casts a derived #GFlagsClass structure into a #GFlagsClass structure.
88 #define G_FLAGS_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_FLAGS, GFlagsClass))
91 * @class: a #GFlagsClass
93 * Checks whether @class "is a" valid #GFlagsClass structure of type %G_TYPE_FLAGS
96 #define G_IS_FLAGS_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_FLAGS))
99 * @class: a #GFlagsClass
101 * Get the type identifier from a given #GFlagsClass structure.
103 * Returns: the #GType
105 #define G_FLAGS_CLASS_TYPE(class) (G_TYPE_FROM_CLASS (class))
107 * G_FLAGS_CLASS_TYPE_NAME:
108 * @class: a #GFlagsClass
110 * Get the static type name from a given #GFlagsClass structure.
112 * Returns: the type name.
114 #define G_FLAGS_CLASS_TYPE_NAME(class) (g_type_name (G_FLAGS_CLASS_TYPE (class)))
118 * G_VALUE_HOLDS_ENUM:
119 * @value: a valid #GValue structure
121 * Checks whether the given #GValue can hold values derived from type %G_TYPE_ENUM.
123 * Returns: %TRUE on success.
125 #define G_VALUE_HOLDS_ENUM(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_ENUM))
127 * G_VALUE_HOLDS_FLAGS:
128 * @value: a valid #GValue structure
130 * Checks whether the given #GValue can hold values derived from type %G_TYPE_FLAGS.
132 * Returns: %TRUE on success.
134 #define G_VALUE_HOLDS_FLAGS(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_FLAGS))
137 /* --- enum/flag values & classes --- */
138 typedef struct _GEnumClass GEnumClass;
139 typedef struct _GFlagsClass GFlagsClass;
140 typedef struct _GEnumValue GEnumValue;
141 typedef struct _GFlagsValue GFlagsValue;
145 * @g_type_class: the parent class
146 * @minimum: the smallest possible value.
147 * @maximum: the largest possible value.
148 * @n_values: the number of possible values.
149 * @values: an array of #GEnumValue structs describing the
152 * The class of an enumeration type holds information about its
157 GTypeClass g_type_class;
167 * @g_type_class: the parent class
168 * @mask: a mask covering all possible values.
169 * @n_values: the number of possible values.
170 * @values: an array of #GFlagsValue structs describing the
173 * The class of a flags type holds information about its
178 GTypeClass g_type_class;
187 * @value: the enum value
188 * @value_name: the name of the value
189 * @value_nick: the nickname of the value
191 * A structure which contains a single enum value, its name, and its
197 const gchar *value_name;
198 const gchar *value_nick;
202 * @value: the flags value
203 * @value_name: the name of the value
204 * @value_nick: the nickname of the value
206 * A structure which contains a single flags value, its name, and its
212 const gchar *value_name;
213 const gchar *value_nick;
217 /* --- prototypes --- */
218 GLIB_AVAILABLE_IN_ALL
219 GEnumValue* g_enum_get_value (GEnumClass *enum_class,
221 GLIB_AVAILABLE_IN_ALL
222 GEnumValue* g_enum_get_value_by_name (GEnumClass *enum_class,
224 GLIB_AVAILABLE_IN_ALL
225 GEnumValue* g_enum_get_value_by_nick (GEnumClass *enum_class,
227 GLIB_AVAILABLE_IN_ALL
228 GFlagsValue* g_flags_get_first_value (GFlagsClass *flags_class,
230 GLIB_AVAILABLE_IN_ALL
231 GFlagsValue* g_flags_get_value_by_name (GFlagsClass *flags_class,
233 GLIB_AVAILABLE_IN_ALL
234 GFlagsValue* g_flags_get_value_by_nick (GFlagsClass *flags_class,
236 GLIB_AVAILABLE_IN_ALL
237 void g_value_set_enum (GValue *value,
239 GLIB_AVAILABLE_IN_ALL
240 gint g_value_get_enum (const GValue *value);
241 GLIB_AVAILABLE_IN_ALL
242 void g_value_set_flags (GValue *value,
244 GLIB_AVAILABLE_IN_ALL
245 guint g_value_get_flags (const GValue *value);
249 /* --- registration functions --- */
250 /* const_static_values is a NULL terminated array of enum/flags
251 * values that is taken over!
253 GLIB_AVAILABLE_IN_ALL
254 GType g_enum_register_static (const gchar *name,
255 const GEnumValue *const_static_values);
256 GLIB_AVAILABLE_IN_ALL
257 GType g_flags_register_static (const gchar *name,
258 const GFlagsValue *const_static_values);
259 /* functions to complete the type information
260 * for enums/flags implemented by plugins
262 GLIB_AVAILABLE_IN_ALL
263 void g_enum_complete_type_info (GType g_enum_type,
265 const GEnumValue *const_values);
266 GLIB_AVAILABLE_IN_ALL
267 void g_flags_complete_type_info (GType g_flags_type,
269 const GFlagsValue *const_values);
273 #endif /* __G_ENUMS_H__ */