gobject/genums.h

   1 /* GObject - GLib Type, Object, Parameter and Signal Library
   2  * Copyright (C) 1998-1999, 2000-2001 Tim Janik and Red Hat, Inc.
   3  *
   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.
   8  *
   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.
  13  *
  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.
  18  */
  19 #if !defined (__GLIB_GOBJECT_H_INSIDE__) && !defined (GOBJECT_COMPILATION)
  20 #error "Only <glib-object.h> can be included directly."
  21 #endif
  22
  23 #ifndef __G_ENUMS_H__
  24 #define __G_ENUMS_H__
  25
  26 #include <gobject/gtype.h>
  27
  28 G_BEGIN_DECLS
  29
  30 /* --- type macros --- */
  31 #define G_TYPE_IS_ENUM(type)           (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM)
  32 #define G_ENUM_CLASS(class)            (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_ENUM, GEnumClass))
  33 #define G_IS_ENUM_CLASS(class)         (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_ENUM))
  34 #define G_ENUM_CLASS_TYPE(class)       (G_TYPE_FROM_CLASS (class))
  35 #define G_ENUM_CLASS_TYPE_NAME(class)  (g_type_name (G_ENUM_CLASS_TYPE (class)))
  36 #define G_TYPE_IS_FLAGS(type)          (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS)
  37 #define G_FLAGS_CLASS(class)           (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_FLAGS, GFlagsClass))
  38 #define G_IS_FLAGS_CLASS(class)        (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_FLAGS))
  39 #define G_FLAGS_CLASS_TYPE(class)      (G_TYPE_FROM_CLASS (class))
  40 #define G_FLAGS_CLASS_TYPE_NAME(class) (g_type_name (G_FLAGS_TYPE (class)))
  41 #define G_VALUE_HOLDS_ENUM(value)      (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_ENUM))
  42 #define G_VALUE_HOLDS_FLAGS(value)     (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_FLAGS))
  43
  44
  45 /* --- enum/flag values & classes --- */
  46 typedef struct _GEnumClass  GEnumClass;
  47 typedef struct _GFlagsClass GFlagsClass;
  48 typedef struct _GEnumValue  GEnumValue;
  49 typedef struct _GFlagsValue GFlagsValue;
  50 struct  _GEnumClass
  51 {
  52   GTypeClass  g_type_class;
  53
  54   /*< public >*/
  55   gint        minimum;
  56   gint        maximum;
  57   guint       n_values;
  58   GEnumValue *values;
  59 };
  60 struct  _GFlagsClass
  61 {
  62   GTypeClass   g_type_class;
  63
  64   /*< public >*/
  65   guint        mask;
  66   guint        n_values;
  67   GFlagsValue *values;
  68 };
  69 struct _GEnumValue
  70 {
  71   gint   value;
  72   gchar *value_name;
  73   gchar *value_nick;
  74 };
  75 struct _GFlagsValue
  76 {
  77   guint  value;
  78   gchar *value_name;
  79   gchar *value_nick;
  80 };
  81
  82
  83 /* --- prototypes --- */
  84 GEnumValue*     g_enum_get_value                (GEnumClass     *enum_class,
  85                                                  gint            value);
  86 GEnumValue*     g_enum_get_value_by_name        (GEnumClass     *enum_class,
  87                                                  const gchar    *name);
  88 GEnumValue*     g_enum_get_value_by_nick        (GEnumClass     *enum_class,
  89                                                  const gchar    *nick);
  90 GFlagsValue*    g_flags_get_first_value         (GFlagsClass    *flags_class,
  91                                                  guint           value);
  92 GFlagsValue*    g_flags_get_value_by_name       (GFlagsClass    *flags_class,
  93                                                  const gchar    *name);
  94 GFlagsValue*    g_flags_get_value_by_nick       (GFlagsClass    *flags_class,
  95                                                  const gchar    *nick);
  96 void            g_value_set_enum                (GValue         *value,
  97                                                  gint            v_enum);
  98 gint            g_value_get_enum                (const GValue   *value);
  99 void            g_value_set_flags               (GValue         *value,
 100                                                  guint           v_flags);
 101 guint           g_value_get_flags               (const GValue   *value);
 102
 103
 104
 105 /* --- registration functions --- */
 106 /* const_static_values is a NULL terminated array of enum/flags
 107  * values that is taken over!
 108  */
 109 GType   g_enum_register_static     (const gchar       *name,
 110                                     const GEnumValue  *const_static_values);
 111 GType   g_flags_register_static    (const gchar       *name,
 112                                     const GFlagsValue *const_static_values);
 113 /* functions to complete the type information
 114  * for enums/flags implemented by plugins
 115  */
 116 void    g_enum_complete_type_info  (GType              g_enum_type,
 117                                     GTypeInfo         *info,
 118                                     const GEnumValue  *const_values);
 119 void    g_flags_complete_type_info (GType              g_flags_type,
 120                                     GTypeInfo         *info,
 121                                     const GFlagsValue *const_values);
 122
 123 G_END_DECLS
 124
 125 #endif /* __G_ENUMS_H__ */