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.
25 #include "gvaluecollector.h"
28 /* --- prototypes --- */
29 static void g_enum_class_init (GEnumClass *class,
31 static void g_flags_class_init (GFlagsClass *class,
33 static void value_flags_enum_init (GValue *value);
34 static void value_flags_enum_copy_value (const GValue *src_value,
36 static gchar* value_flags_enum_collect_value (GValue *value,
39 GTypeCValue *collect_value);
40 static gchar* value_flags_enum_lcopy_value (const GValue *value,
43 GTypeCValue *collect_value);
46 /* --- functions --- */
48 g_enum_types_init (void) /* sync with gtype.c */
50 static gboolean initialized = FALSE;
51 static const GTypeValueTable flags_enum_value_table = {
52 value_flags_enum_init, /* value_init */
53 NULL, /* value_free */
54 value_flags_enum_copy_value, /* value_copy */
55 NULL, /* value_peek_pointer */
56 G_VALUE_COLLECT_INT, /* collect_type */
57 value_flags_enum_collect_value, /* collect_value */
58 G_VALUE_COLLECT_POINTER, /* lcopy_type */
59 value_flags_enum_lcopy_value, /* lcopy_value */
61 static GTypeInfo info = {
64 NULL, /* base_destroy */
65 NULL, /* class_init */
66 NULL, /* class_destroy */
67 NULL, /* class_data */
68 0, /* instance_size */
70 NULL, /* instance_init */
71 &flags_enum_value_table, /* value_table */
73 static const GTypeFundamentalInfo finfo = {
74 G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_DERIVABLE,
78 g_return_if_fail (initialized == FALSE);
83 info.class_size = sizeof (GEnumClass);
84 type = g_type_register_fundamental (G_TYPE_ENUM, "GEnum", &info, &finfo, G_TYPE_FLAG_ABSTRACT);
85 g_assert (type == G_TYPE_ENUM);
89 info.class_size = sizeof (GFlagsClass);
90 type = g_type_register_fundamental (G_TYPE_FLAGS, "GFlags", &info, &finfo, G_TYPE_FLAG_ABSTRACT);
91 g_assert (type == G_TYPE_FLAGS);
95 value_flags_enum_init (GValue *value)
97 value->data[0].v_long = 0;
101 value_flags_enum_copy_value (const GValue *src_value,
104 dest_value->data[0].v_long = src_value->data[0].v_long;
108 value_flags_enum_collect_value (GValue *value,
111 GTypeCValue *collect_value)
113 value->data[0].v_long = collect_value->v_int;
120 value_flags_enum_lcopy_value (const GValue *value,
123 GTypeCValue *collect_value)
125 gint *int_p = collect_value->v_pointer;
128 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
130 *int_p = value->data[0].v_long;
137 g_enum_register_static (const gchar *name,
138 const GEnumValue *const_static_values)
140 GTypeInfo enum_type_info = {
141 sizeof (GEnumClass), /* class_size */
142 NULL, /* base_init */
143 NULL, /* base_finalize */
144 (GClassInitFunc) g_enum_class_init,
145 NULL, /* class_finalize */
146 NULL, /* class_data */
147 0, /* instance_size */
149 NULL, /* instance_init */
150 NULL, /* value_table */
154 g_return_val_if_fail (name != NULL, 0);
155 g_return_val_if_fail (const_static_values != NULL, 0);
157 enum_type_info.class_data = const_static_values;
159 type = g_type_register_static (G_TYPE_ENUM, name, &enum_type_info, 0);
165 g_flags_register_static (const gchar *name,
166 const GFlagsValue *const_static_values)
168 GTypeInfo flags_type_info = {
169 sizeof (GFlagsClass), /* class_size */
170 NULL, /* base_init */
171 NULL, /* base_finalize */
172 (GClassInitFunc) g_flags_class_init,
173 NULL, /* class_finalize */
174 NULL, /* class_data */
175 0, /* instance_size */
177 NULL, /* instance_init */
178 NULL, /* value_table */
182 g_return_val_if_fail (name != NULL, 0);
183 g_return_val_if_fail (const_static_values != NULL, 0);
185 flags_type_info.class_data = const_static_values;
187 type = g_type_register_static (G_TYPE_FLAGS, name, &flags_type_info, 0);
193 g_enum_complete_type_info (GType g_enum_type,
195 const GEnumValue *const_values)
197 g_return_if_fail (G_TYPE_IS_ENUM (g_enum_type));
198 g_return_if_fail (info != NULL);
199 g_return_if_fail (const_values != NULL);
201 info->class_size = sizeof (GEnumClass);
202 info->base_init = NULL;
203 info->base_finalize = NULL;
204 info->class_init = (GClassInitFunc) g_enum_class_init;
205 info->class_finalize = NULL;
206 info->class_data = const_values;
210 g_flags_complete_type_info (GType g_flags_type,
212 const GFlagsValue *const_values)
214 g_return_if_fail (G_TYPE_IS_FLAGS (g_flags_type));
215 g_return_if_fail (info != NULL);
216 g_return_if_fail (const_values != NULL);
218 info->class_size = sizeof (GFlagsClass);
219 info->base_init = NULL;
220 info->base_finalize = NULL;
221 info->class_init = (GClassInitFunc) g_flags_class_init;
222 info->class_finalize = NULL;
223 info->class_data = const_values;
227 g_enum_class_init (GEnumClass *class,
230 g_return_if_fail (G_IS_ENUM_CLASS (class));
235 class->values = class_data;
241 class->minimum = class->values->value;
242 class->maximum = class->values->value;
243 for (values = class->values; values->value_name; values++)
245 class->minimum = MIN (class->minimum, values->value);
246 class->maximum = MAX (class->maximum, values->value);
253 g_flags_class_init (GFlagsClass *class,
256 g_return_if_fail (G_IS_FLAGS_CLASS (class));
260 class->values = class_data;
266 for (values = class->values; values->value_name; values++)
268 class->mask |= values->value;
275 g_enum_get_value_by_name (GEnumClass *enum_class,
278 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
279 g_return_val_if_fail (name != NULL, NULL);
281 if (enum_class->n_values)
283 GEnumValue *enum_value;
285 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
286 if (strcmp (name, enum_value->value_name) == 0)
294 g_flags_get_value_by_name (GFlagsClass *flags_class,
297 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
298 g_return_val_if_fail (name != NULL, NULL);
300 if (flags_class->n_values)
302 GFlagsValue *flags_value;
304 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
305 if (strcmp (name, flags_value->value_name) == 0)
313 g_enum_get_value_by_nick (GEnumClass *enum_class,
316 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
317 g_return_val_if_fail (nick != NULL, NULL);
319 if (enum_class->n_values)
321 GEnumValue *enum_value;
323 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
324 if (enum_value->value_nick && strcmp (nick, enum_value->value_nick) == 0)
332 g_flags_get_value_by_nick (GFlagsClass *flags_class,
335 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
336 g_return_val_if_fail (nick != NULL, NULL);
338 if (flags_class->n_values)
340 GFlagsValue *flags_value;
342 for (flags_value = flags_class->values; flags_value->value_nick; flags_value++)
343 if (flags_value->value_nick && strcmp (nick, flags_value->value_nick) == 0)
351 g_enum_get_value (GEnumClass *enum_class,
354 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
356 if (enum_class->n_values)
358 GEnumValue *enum_value;
360 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
361 if (enum_value->value == value)
369 g_flags_get_first_value (GFlagsClass *flags_class,
372 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
374 if (flags_class->n_values)
376 GFlagsValue *flags_value;
378 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
379 if ((flags_value->value & value) > 0)
387 g_value_set_enum (GValue *value,
390 g_return_if_fail (G_IS_VALUE_ENUM (value));
392 value->data[0].v_long = v_enum;
396 g_value_get_enum (const GValue *value)
398 g_return_val_if_fail (G_IS_VALUE_ENUM (value), 0);
400 return value->data[0].v_long;
404 g_value_set_flags (GValue *value,
407 g_return_if_fail (G_IS_VALUE_FLAGS (value));
409 value->data[0].v_ulong = v_flags;
413 g_value_get_flags (const GValue *value)
415 g_return_val_if_fail (G_IS_VALUE_FLAGS (value), 0);
417 return value->data[0].v_ulong;