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, 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
,
89 G_TYPE_FLAG_ABSTRACT
| G_TYPE_FLAG_VALUE_ABSTRACT
);
90 g_assert (type
== G_TYPE_ENUM
);
94 info
.class_size
= sizeof (GFlagsClass
);
95 type
= g_type_register_fundamental (G_TYPE_FLAGS
, "GFlags", &info
, &finfo
,
96 G_TYPE_FLAG_ABSTRACT
| G_TYPE_FLAG_VALUE_ABSTRACT
);
97 g_assert (type
== G_TYPE_FLAGS
);
101 value_flags_enum_init (GValue
*value
)
103 value
->data
[0].v_long
= 0;
107 value_flags_enum_copy_value (const GValue
*src_value
,
110 dest_value
->data
[0].v_long
= src_value
->data
[0].v_long
;
114 value_flags_enum_collect_value (GValue
*value
,
115 guint n_collect_values
,
116 GTypeCValue
*collect_values
,
119 value
->data
[0].v_long
= collect_values
[0].v_int
;
125 value_flags_enum_lcopy_value (const GValue
*value
,
126 guint n_collect_values
,
127 GTypeCValue
*collect_values
,
130 gint
*int_p
= collect_values
[0].v_pointer
;
133 return g_strdup_printf ("value location for `%s' passed as NULL", G_VALUE_TYPE_NAME (value
));
135 *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
) == flags_value
->value
)
391 g_value_set_enum (GValue
*value
,
394 g_return_if_fail (G_VALUE_HOLDS_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_VALUE_HOLDS_ENUM (value
), 0);
404 return value
->data
[0].v_long
;
408 g_value_set_flags (GValue
*value
,
411 g_return_if_fail (G_VALUE_HOLDS_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_VALUE_HOLDS_FLAGS (value
), 0);
421 return value
->data
[0].v_ulong
;