1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 1998, 1999, 2000 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, write to the
16 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
17 * Boston, MA 02111-1307, USA.
29 #include "gvaluecollector.h"
32 /* --- prototypes --- */
33 static void g_enum_class_init (GEnumClass *class,
35 static void g_flags_class_init (GFlagsClass *class,
37 static void value_flags_enum_init (GValue *value);
38 static void value_flags_enum_copy_value (const GValue *src_value,
40 static gchar* value_flags_enum_collect_value (GValue *value,
43 GTypeCValue *collect_value);
44 static gchar* value_flags_enum_lcopy_value (const GValue *value,
47 GTypeCValue *collect_value);
50 /* --- functions --- */
52 g_enum_types_init (void) /* sync with gtype.c */
54 static gboolean initialized = FALSE;
55 static const GTypeValueTable flags_enum_value_table = {
56 value_flags_enum_init, /* value_init */
57 NULL, /* value_free */
58 value_flags_enum_copy_value, /* value_copy */
59 NULL, /* value_peek_pointer */
60 G_VALUE_COLLECT_INT, /* collect_type */
61 value_flags_enum_collect_value, /* collect_value */
62 G_VALUE_COLLECT_POINTER, /* lcopy_type */
63 value_flags_enum_lcopy_value, /* lcopy_value */
65 static GTypeInfo info = {
68 NULL, /* base_destroy */
69 NULL, /* class_init */
70 NULL, /* class_destroy */
71 NULL, /* class_data */
72 0, /* instance_size */
74 NULL, /* instance_init */
75 &flags_enum_value_table, /* value_table */
77 static const GTypeFundamentalInfo finfo = {
78 G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_DERIVABLE,
82 g_return_if_fail (initialized == FALSE);
87 info.class_size = sizeof (GEnumClass);
88 type = g_type_register_fundamental (G_TYPE_ENUM, "GEnum", &info, &finfo, G_TYPE_FLAG_ABSTRACT);
89 g_assert (type == G_TYPE_ENUM);
93 info.class_size = sizeof (GFlagsClass);
94 type = g_type_register_fundamental (G_TYPE_FLAGS, "GFlags", &info, &finfo, G_TYPE_FLAG_ABSTRACT);
95 g_assert (type == G_TYPE_FLAGS);
99 value_flags_enum_init (GValue *value)
101 value->data[0].v_long = 0;
105 value_flags_enum_copy_value (const GValue *src_value,
108 dest_value->data[0].v_long = src_value->data[0].v_long;
112 value_flags_enum_collect_value (GValue *value,
115 GTypeCValue *collect_value)
117 value->data[0].v_long = collect_value->v_int;
124 value_flags_enum_lcopy_value (const GValue *value,
127 GTypeCValue *collect_value)
129 gint *int_p = collect_value->v_pointer;
132 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
134 *int_p = value->data[0].v_long;
141 g_enum_register_static (const gchar *name,
142 const GEnumValue *const_static_values)
144 GTypeInfo enum_type_info = {
145 sizeof (GEnumClass), /* class_size */
146 NULL, /* base_init */
147 NULL, /* base_finalize */
148 (GClassInitFunc) g_enum_class_init,
149 NULL, /* class_finalize */
150 NULL, /* class_data */
151 0, /* instance_size */
153 NULL, /* instance_init */
154 NULL, /* value_table */
158 g_return_val_if_fail (name != NULL, 0);
159 g_return_val_if_fail (const_static_values != NULL, 0);
161 enum_type_info.class_data = const_static_values;
163 type = g_type_register_static (G_TYPE_ENUM, name, &enum_type_info, 0);
169 g_flags_register_static (const gchar *name,
170 const GFlagsValue *const_static_values)
172 GTypeInfo flags_type_info = {
173 sizeof (GFlagsClass), /* class_size */
174 NULL, /* base_init */
175 NULL, /* base_finalize */
176 (GClassInitFunc) g_flags_class_init,
177 NULL, /* class_finalize */
178 NULL, /* class_data */
179 0, /* instance_size */
181 NULL, /* instance_init */
182 NULL, /* value_table */
186 g_return_val_if_fail (name != NULL, 0);
187 g_return_val_if_fail (const_static_values != NULL, 0);
189 flags_type_info.class_data = const_static_values;
191 type = g_type_register_static (G_TYPE_FLAGS, name, &flags_type_info, 0);
197 g_enum_complete_type_info (GType g_enum_type,
199 const GEnumValue *const_values)
201 g_return_if_fail (G_TYPE_IS_ENUM (g_enum_type));
202 g_return_if_fail (info != NULL);
203 g_return_if_fail (const_values != NULL);
205 info->class_size = sizeof (GEnumClass);
206 info->base_init = NULL;
207 info->base_finalize = NULL;
208 info->class_init = (GClassInitFunc) g_enum_class_init;
209 info->class_finalize = NULL;
210 info->class_data = const_values;
214 g_flags_complete_type_info (GType g_flags_type,
216 const GFlagsValue *const_values)
218 g_return_if_fail (G_TYPE_IS_FLAGS (g_flags_type));
219 g_return_if_fail (info != NULL);
220 g_return_if_fail (const_values != NULL);
222 info->class_size = sizeof (GFlagsClass);
223 info->base_init = NULL;
224 info->base_finalize = NULL;
225 info->class_init = (GClassInitFunc) g_flags_class_init;
226 info->class_finalize = NULL;
227 info->class_data = const_values;
231 g_enum_class_init (GEnumClass *class,
234 g_return_if_fail (G_IS_ENUM_CLASS (class));
239 class->values = class_data;
245 class->minimum = class->values->value;
246 class->maximum = class->values->value;
247 for (values = class->values; values->value_name; values++)
249 class->minimum = MIN (class->minimum, values->value);
250 class->maximum = MAX (class->maximum, values->value);
257 g_flags_class_init (GFlagsClass *class,
260 g_return_if_fail (G_IS_FLAGS_CLASS (class));
264 class->values = class_data;
270 for (values = class->values; values->value_name; values++)
272 class->mask |= values->value;
279 g_enum_get_value_by_name (GEnumClass *enum_class,
282 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
283 g_return_val_if_fail (name != NULL, NULL);
285 if (enum_class->n_values)
287 GEnumValue *enum_value;
289 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
290 if (strcmp (name, enum_value->value_name) == 0)
298 g_flags_get_value_by_name (GFlagsClass *flags_class,
301 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
302 g_return_val_if_fail (name != NULL, NULL);
304 if (flags_class->n_values)
306 GFlagsValue *flags_value;
308 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
309 if (strcmp (name, flags_value->value_name) == 0)
317 g_enum_get_value_by_nick (GEnumClass *enum_class,
320 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
321 g_return_val_if_fail (nick != NULL, NULL);
323 if (enum_class->n_values)
325 GEnumValue *enum_value;
327 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
328 if (enum_value->value_nick && strcmp (nick, enum_value->value_nick) == 0)
336 g_flags_get_value_by_nick (GFlagsClass *flags_class,
339 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
340 g_return_val_if_fail (nick != NULL, NULL);
342 if (flags_class->n_values)
344 GFlagsValue *flags_value;
346 for (flags_value = flags_class->values; flags_value->value_nick; flags_value++)
347 if (flags_value->value_nick && strcmp (nick, flags_value->value_nick) == 0)
355 g_enum_get_value (GEnumClass *enum_class,
358 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
360 if (enum_class->n_values)
362 GEnumValue *enum_value;
364 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
365 if (enum_value->value == value)
373 g_flags_get_first_value (GFlagsClass *flags_class,
376 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
378 if (flags_class->n_values)
380 GFlagsValue *flags_value;
382 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
383 if ((flags_value->value & value) > 0)
391 g_value_set_enum (GValue *value,
394 g_return_if_fail (G_IS_VALUE_ENUM (value));
396 value->data[0].v_long = v_enum;
400 g_value_get_enum (const GValue *value)
402 g_return_val_if_fail (G_IS_VALUE_ENUM (value), 0);
404 return value->data[0].v_long;
408 g_value_set_flags (GValue *value,
411 g_return_if_fail (G_IS_VALUE_FLAGS (value));
413 value->data[0].v_ulong = v_flags;
417 g_value_get_flags (const GValue *value)
419 g_return_val_if_fail (G_IS_VALUE_FLAGS (value), 0);
421 return value->data[0].v_ulong;