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.
22 #include "gvaluecollector.h"
25 /* --- prototypes --- */
26 static void g_enum_class_init (GEnumClass *class,
28 static void g_flags_class_init (GFlagsClass *class,
30 static void g_value_enum_init (GValue *value);
31 static void g_value_enum_copy_value (const GValue *src_value,
33 static gchar* g_value_enum_collect_value (GValue *value,
36 GTypeCValue *collect_value);
37 static gchar* g_value_enum_lcopy_value (const GValue *value,
40 GTypeCValue *collect_value);
43 /* --- functions --- */
45 g_enum_types_init (void) /* sync with gtype.c */
47 static gboolean initialized = FALSE;
48 static const GTypeFundamentalInfo finfo = {
49 G_TYPE_FLAG_CLASSED | G_TYPE_FLAG_DERIVABLE,
51 static GTypeInfo info = {
54 NULL /* base_finalize */,
55 NULL /* class_init */,
56 NULL /* class_finalize */,
57 NULL /* class_data */,
59 static const GTypeValueTable value_table = {
60 g_value_enum_init, /* value_init */
61 NULL, /* value_free */
62 g_value_enum_copy_value, /* value_copy */
63 G_VALUE_COLLECT_INT, /* collect_type */
64 g_value_enum_collect_value, /* collect_value */
65 G_VALUE_COLLECT_POINTER, /* lcopy_type */
66 g_value_enum_lcopy_value, /* lcopy_value */
70 g_return_if_fail (initialized == FALSE);
73 info.value_table = &value_table;
77 info.class_size = sizeof (GEnumClass);
78 type = g_type_register_fundamental (G_TYPE_ENUM, "GEnum", &info, &finfo);
79 g_assert (type == G_TYPE_ENUM);
83 info.class_size = sizeof (GFlagsClass);
84 type = g_type_register_fundamental (G_TYPE_FLAGS, "GFlags", &info, &finfo);
85 g_assert (type == G_TYPE_FLAGS);
89 g_enum_register_static (const gchar *name,
90 const GEnumValue *const_static_values)
92 GTypeInfo enum_type_info = {
95 NULL /* base_finalize */,
96 (GClassInitFunc) g_enum_class_init,
97 NULL /* class_finalize */,
98 NULL /* class_data */,
102 g_return_val_if_fail (name != NULL, 0);
103 g_return_val_if_fail (const_static_values != NULL, 0);
105 enum_type_info.class_data = const_static_values;
107 type = g_type_register_static (G_TYPE_ENUM, name, &enum_type_info);
113 g_flags_register_static (const gchar *name,
114 const GFlagsValue *const_static_values)
116 GTypeInfo flags_type_info = {
117 sizeof (GFlagsClass),
118 NULL /* base_init */,
119 NULL /* base_finalize */,
120 (GClassInitFunc) g_flags_class_init,
121 NULL /* class_finalize */,
122 NULL /* class_data */,
126 g_return_val_if_fail (name != NULL, 0);
127 g_return_val_if_fail (const_static_values != NULL, 0);
129 flags_type_info.class_data = const_static_values;
131 type = g_type_register_static (G_TYPE_FLAGS, name, &flags_type_info);
137 g_enum_complete_type_info (GType g_enum_type,
139 const GEnumValue *const_values)
141 g_return_if_fail (G_TYPE_IS_ENUM (g_enum_type));
142 g_return_if_fail (info != NULL);
143 g_return_if_fail (const_values != NULL);
145 info->class_size = sizeof (GEnumClass);
146 info->base_init = NULL;
147 info->base_finalize = NULL;
148 info->class_init = (GClassInitFunc) g_enum_class_init;
149 info->class_finalize = NULL;
150 info->class_data = const_values;
154 g_flags_complete_type_info (GType g_flags_type,
156 const GFlagsValue *const_values)
158 g_return_if_fail (G_TYPE_IS_FLAGS (g_flags_type));
159 g_return_if_fail (info != NULL);
160 g_return_if_fail (const_values != NULL);
162 info->class_size = sizeof (GFlagsClass);
163 info->base_init = NULL;
164 info->base_finalize = NULL;
165 info->class_init = (GClassInitFunc) g_flags_class_init;
166 info->class_finalize = NULL;
167 info->class_data = const_values;
171 g_enum_class_init (GEnumClass *class,
174 g_return_if_fail (G_IS_ENUM_CLASS (class));
179 class->values = class_data;
185 class->minimum = class->values->value;
186 class->maximum = class->values->value;
187 for (values = class->values; values->value_name; values++)
189 class->minimum = MIN (class->minimum, values->value);
190 class->maximum = MAX (class->maximum, values->value);
197 g_flags_class_init (GFlagsClass *class,
200 g_return_if_fail (G_IS_FLAGS_CLASS (class));
204 class->values = class_data;
210 for (values = class->values; values->value_name; values++)
212 class->mask |= values->value;
219 g_enum_get_value_by_name (GEnumClass *enum_class,
222 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
223 g_return_val_if_fail (name != NULL, NULL);
225 if (enum_class->n_values)
227 GEnumValue *enum_value;
229 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
230 if (strcmp (name, enum_value->value_name) == 0)
238 g_flags_get_value_by_name (GFlagsClass *flags_class,
241 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
242 g_return_val_if_fail (name != NULL, NULL);
244 if (flags_class->n_values)
246 GFlagsValue *flags_value;
248 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
249 if (strcmp (name, flags_value->value_name) == 0)
257 g_enum_get_value_by_nick (GEnumClass *enum_class,
260 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
261 g_return_val_if_fail (nick != NULL, NULL);
263 if (enum_class->n_values)
265 GEnumValue *enum_value;
267 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
268 if (enum_value->value_nick && strcmp (nick, enum_value->value_nick) == 0)
276 g_flags_get_value_by_nick (GFlagsClass *flags_class,
279 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
280 g_return_val_if_fail (nick != NULL, NULL);
282 if (flags_class->n_values)
284 GFlagsValue *flags_value;
286 for (flags_value = flags_class->values; flags_value->value_nick; flags_value++)
287 if (flags_value->value_nick && strcmp (nick, flags_value->value_nick) == 0)
295 g_enum_get_value (GEnumClass *enum_class,
298 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
300 if (enum_class->n_values)
302 GEnumValue *enum_value;
304 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
305 if (enum_value->value == value)
313 g_flags_get_first_value (GFlagsClass *flags_class,
316 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
318 if (flags_class->n_values)
320 GFlagsValue *flags_value;
322 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
323 if ((flags_value->value & value) > 0)
331 g_value_set_enum (GValue *value,
334 g_return_if_fail (G_IS_VALUE_ENUM (value));
336 value->data[0].v_long = v_enum;
340 g_value_get_enum (GValue *value)
342 g_return_val_if_fail (G_IS_VALUE_ENUM (value), 0);
344 return value->data[0].v_long;
348 g_value_set_flags (GValue *value,
351 g_return_if_fail (G_IS_VALUE_FLAGS (value));
353 value->data[0].v_ulong = v_flags;
357 g_value_get_flags (GValue *value)
359 g_return_val_if_fail (G_IS_VALUE_FLAGS (value), 0);
361 return value->data[0].v_ulong;
365 g_value_enum_init (GValue *value)
367 value->data[0].v_long = 0;
371 g_value_enum_copy_value (const GValue *src_value,
374 dest_value->data[0].v_long = src_value->data[0].v_long;
378 g_value_enum_collect_value (GValue *value,
381 GTypeCValue *collect_value)
383 value->data[0].v_long = collect_value->v_int;
390 g_value_enum_lcopy_value (const GValue *value,
393 GTypeCValue *collect_value)
395 gint *int_p = collect_value->v_pointer;
398 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
400 *int_p = value->data[0].v_long;