1 /* 2 * Copyright © 2010 Codethink Limited 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 2.1 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, but 10 * 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 Public 15 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 16 * 17 * Author: Ryan Lortie <desrt@desrt.ca> 18 */ 19 20 #ifndef __G_TIME_ZONE_H__ 21 #define __G_TIME_ZONE_H__ 22 23 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) 24 #error "Only <glib.h> can be included directly." 25 #endif 26 27 #include <glib/gerror.h> 28 #include <glib/gtypes.h> 29 30 G_BEGIN_DECLS 31 32 typedef struct _GTimeZone GTimeZone; 33 34 /** 35 * GTimeType: 36 * @G_TIME_TYPE_STANDARD: the time is in local standard time 37 * @G_TIME_TYPE_DAYLIGHT: the time is in local daylight time 38 * @G_TIME_TYPE_UNIVERSAL: the time is in UTC 39 * 40 * Disambiguates a given time in two ways. 41 * 42 * First, specifies if the given time is in universal or local time. 43 * 44 * Second, if the time is in local time, specifies if it is local 45 * standard time or local daylight time. This is important for the case 46 * where the same local time occurs twice (during daylight savings time 47 * transitions, for example). 48 */ 49 typedef enum 50 { 51 G_TIME_TYPE_STANDARD, 52 G_TIME_TYPE_DAYLIGHT, 53 G_TIME_TYPE_UNIVERSAL 54 } GTimeType; 55 56 GLIB_DEPRECATED_IN_2_68_FOR (g_time_zone_new_identifier) 57 GTimeZone * g_time_zone_new (const gchar *identifier); 58 GLIB_AVAILABLE_IN_2_68 59 GTimeZone * g_time_zone_new_identifier (const gchar *identifier); 60 GLIB_AVAILABLE_IN_ALL 61 GTimeZone * g_time_zone_new_utc (void); 62 GLIB_AVAILABLE_IN_ALL 63 GTimeZone * g_time_zone_new_local (void); 64 GLIB_AVAILABLE_IN_2_58 65 GTimeZone * g_time_zone_new_offset (gint32 seconds); 66 67 GLIB_AVAILABLE_IN_ALL 68 GTimeZone * g_time_zone_ref (GTimeZone *tz); 69 GLIB_AVAILABLE_IN_ALL 70 void g_time_zone_unref (GTimeZone *tz); 71 72 GLIB_AVAILABLE_IN_ALL 73 gint g_time_zone_find_interval (GTimeZone *tz, 74 GTimeType type, 75 gint64 time_); 76 77 GLIB_AVAILABLE_IN_ALL 78 gint g_time_zone_adjust_time (GTimeZone *tz, 79 GTimeType type, 80 gint64 *time_); 81 82 GLIB_AVAILABLE_IN_ALL 83 const gchar * g_time_zone_get_abbreviation (GTimeZone *tz, 84 gint interval); 85 GLIB_AVAILABLE_IN_ALL 86 gint32 g_time_zone_get_offset (GTimeZone *tz, 87 gint interval); 88 GLIB_AVAILABLE_IN_ALL 89 gboolean g_time_zone_is_dst (GTimeZone *tz, 90 gint interval); 91 GLIB_AVAILABLE_IN_2_58 92 const gchar * g_time_zone_get_identifier (GTimeZone *tz); 93 94 G_END_DECLS 95 96 #endif /* __G_TIME_ZONE_H__ */ 97