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authorMichael Terry <mike@mterry.name>2011-02-22 11:20:34 -0500
committerMichael Terry <mike@mterry.name>2011-02-22 11:20:34 -0500
commit45b1165f77cab0ac8dc40ce7d605e32c697fb22d (patch)
treeb803709c23f3e50dbca5b57ebb3a4215b0b45d58 /libmap/tz.h
parent8754d980f2992a2596465d46b5d18d35846060fa (diff)
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add initial timezone map implementation, borrowed from gnome-control-center
Diffstat (limited to 'libmap/tz.h')
-rw-r--r--libmap/tz.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/libmap/tz.h b/libmap/tz.h
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* Generic timezone utilities.
+ *
+ * Copyright (C) 2000-2001 Ximian, Inc.
+ *
+ * Authors: Hans Petter Jansson <hpj@ximian.com>
+ *
+ * Largely based on Michael Fulbright's work on Anaconda.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef _E_TZ_H
+#define _E_TZ_H
+
+#include <glib.h>
+
+#ifndef __sun
+# define TZ_DATA_FILE "/usr/share/zoneinfo/zone.tab"
+#else
+# define TZ_DATA_FILE "/usr/share/lib/zoneinfo/tab/zone_sun.tab"
+#endif
+
+typedef struct _TzDB TzDB;
+typedef struct _TzLocation TzLocation;
+typedef struct _TzInfo TzInfo;
+
+
+struct _TzDB
+{
+ GPtrArray *locations;
+};
+
+struct _TzLocation
+{
+ gchar *country;
+ gdouble latitude;
+ gdouble longitude;
+ gchar *zone;
+ gchar *comment;
+
+ gdouble dist; /* distance to clicked point for comparison */
+};
+
+/* see the glibc info page information on time zone information */
+/* tzname_normal is the default name for the timezone */
+/* tzname_daylight is the name of the zone when in daylight savings */
+/* utc_offset is offset in seconds from utc */
+/* daylight if non-zero then location obeys daylight savings */
+
+struct _TzInfo
+{
+ gchar *tzname_normal;
+ gchar *tzname_daylight;
+ glong utc_offset;
+ gint daylight;
+};
+
+
+TzDB *tz_load_db (void);
+void tz_db_free (TzDB *db);
+GPtrArray *tz_get_locations (TzDB *db);
+void tz_location_get_position (TzLocation *loc,
+ double *longitude, double *latitude);
+char *tz_location_get_country (TzLocation *loc);
+gchar *tz_location_get_zone (TzLocation *loc);
+gchar *tz_location_get_comment (TzLocation *loc);
+glong tz_location_get_utc_offset (TzLocation *loc);
+gint tz_location_set_locally (TzLocation *loc);
+TzInfo *tz_info_from_location (TzLocation *loc);
+void tz_info_free (TzInfo *tz_info);
+
+#endif