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,
41 guint n_collect_values,
42 GTypeCValue *collect_values,
44 static gchar* value_flags_enum_lcopy_value (const GValue *value,
45 guint n_collect_values,
46 GTypeCValue *collect_values,
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 "i", /* collect_format */
61 value_flags_enum_collect_value, /* collect_value */
62 "p", /* lcopy_format */
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,
113 guint n_collect_values,
114 GTypeCValue *collect_values,
117 value->data[0].v_long = collect_values[0].v_int;
123 value_flags_enum_lcopy_value (const GValue *value,
124 guint n_collect_values,
125 GTypeCValue *collect_values,
128 gint *int_p = collect_values[0].v_pointer;
131 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value));
133 *int_p = value->data[0].v_long;
139 g_enum_register_static (const gchar *name,
140 const GEnumValue *const_static_values)
142 GTypeInfo enum_type_info = {
143 sizeof (GEnumClass), /* class_size */
144 NULL, /* base_init */
145 NULL, /* base_finalize */
146 (GClassInitFunc) g_enum_class_init,
147 NULL, /* class_finalize */
148 NULL, /* class_data */
149 0, /* instance_size */
151 NULL, /* instance_init */
152 NULL, /* value_table */
156 g_return_val_if_fail (name != NULL, 0);
157 g_return_val_if_fail (const_static_values != NULL, 0);
159 enum_type_info.class_data = const_static_values;
161 type = g_type_register_static (G_TYPE_ENUM, name, &enum_type_info, 0);
167 g_flags_register_static (const gchar *name,
168 const GFlagsValue *const_static_values)
170 GTypeInfo flags_type_info = {
171 sizeof (GFlagsClass), /* class_size */
172 NULL, /* base_init */
173 NULL, /* base_finalize */
174 (GClassInitFunc) g_flags_class_init,
175 NULL, /* class_finalize */
176 NULL, /* class_data */
177 0, /* instance_size */
179 NULL, /* instance_init */
180 NULL, /* value_table */
184 g_return_val_if_fail (name != NULL, 0);
185 g_return_val_if_fail (const_static_values != NULL, 0);
187 flags_type_info.class_data = const_static_values;
189 type = g_type_register_static (G_TYPE_FLAGS, name, &flags_type_info, 0);
195 g_enum_complete_type_info (GType g_enum_type,
197 const GEnumValue *const_values)
199 g_return_if_fail (G_TYPE_IS_ENUM (g_enum_type));
200 g_return_if_fail (info != NULL);
201 g_return_if_fail (const_values != NULL);
203 info->class_size = sizeof (GEnumClass);
204 info->base_init = NULL;
205 info->base_finalize = NULL;
206 info->class_init = (GClassInitFunc) g_enum_class_init;
207 info->class_finalize = NULL;
208 info->class_data = const_values;
212 g_flags_complete_type_info (GType g_flags_type,
214 const GFlagsValue *const_values)
216 g_return_if_fail (G_TYPE_IS_FLAGS (g_flags_type));
217 g_return_if_fail (info != NULL);
218 g_return_if_fail (const_values != NULL);
220 info->class_size = sizeof (GFlagsClass);
221 info->base_init = NULL;
222 info->base_finalize = NULL;
223 info->class_init = (GClassInitFunc) g_flags_class_init;
224 info->class_finalize = NULL;
225 info->class_data = const_values;
229 g_enum_class_init (GEnumClass *class,
232 g_return_if_fail (G_IS_ENUM_CLASS (class));
237 class->values = class_data;
243 class->minimum = class->values->value;
244 class->maximum = class->values->value;
245 for (values = class->values; values->value_name; values++)
247 class->minimum = MIN (class->minimum, values->value);
248 class->maximum = MAX (class->maximum, values->value);
255 g_flags_class_init (GFlagsClass *class,
258 g_return_if_fail (G_IS_FLAGS_CLASS (class));
262 class->values = class_data;
268 for (values = class->values; values->value_name; values++)
270 class->mask |= values->value;
277 g_enum_get_value_by_name (GEnumClass *enum_class,
280 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
281 g_return_val_if_fail (name != NULL, NULL);
283 if (enum_class->n_values)
285 GEnumValue *enum_value;
287 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
288 if (strcmp (name, enum_value->value_name) == 0)
296 g_flags_get_value_by_name (GFlagsClass *flags_class,
299 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
300 g_return_val_if_fail (name != NULL, NULL);
302 if (flags_class->n_values)
304 GFlagsValue *flags_value;
306 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
307 if (strcmp (name, flags_value->value_name) == 0)
315 g_enum_get_value_by_nick (GEnumClass *enum_class,
318 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
319 g_return_val_if_fail (nick != NULL, NULL);
321 if (enum_class->n_values)
323 GEnumValue *enum_value;
325 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
326 if (enum_value->value_nick && strcmp (nick, enum_value->value_nick) == 0)
334 g_flags_get_value_by_nick (GFlagsClass *flags_class,
337 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
338 g_return_val_if_fail (nick != NULL, NULL);
340 if (flags_class->n_values)
342 GFlagsValue *flags_value;
344 for (flags_value = flags_class->values; flags_value->value_nick; flags_value++)
345 if (flags_value->value_nick && strcmp (nick, flags_value->value_nick) == 0)
353 g_enum_get_value (GEnumClass *enum_class,
356 g_return_val_if_fail (G_IS_ENUM_CLASS (enum_class), NULL);
358 if (enum_class->n_values)
360 GEnumValue *enum_value;
362 for (enum_value = enum_class->values; enum_value->value_name; enum_value++)
363 if (enum_value->value == value)
371 g_flags_get_first_value (GFlagsClass *flags_class,
374 g_return_val_if_fail (G_IS_FLAGS_CLASS (flags_class), NULL);
376 if (flags_class->n_values)
378 GFlagsValue *flags_value;
380 for (flags_value = flags_class->values; flags_value->value_name; flags_value++)
381 if ((flags_value->value & value) > 0)
389 g_value_set_enum (GValue *value,
392 g_return_if_fail (G_IS_VALUE_ENUM (value));
394 value->data[0].v_long = v_enum;
398 g_value_get_enum (const GValue *value)
400 g_return_val_if_fail (G_IS_VALUE_ENUM (value), 0);
402 return value->data[0].v_long;
406 g_value_set_flags (GValue *value,
409 g_return_if_fail (G_IS_VALUE_FLAGS (value));
411 value->data[0].v_ulong = v_flags;
415 g_value_get_flags (const GValue *value)
417 g_return_val_if_fail (G_IS_VALUE_FLAGS (value), 0);
419 return value->data[0].v_ulong;