From 1c1136159847953f85346b5c05d3dce6bab4ddca Mon Sep 17 00:00:00 2001 From: Jason Conti Date: Sat, 7 May 2011 18:50:54 -0400 Subject: Ripped out datetime-prefs and the translations. --- libmap/tz.c | 399 ------------------------------------------------------------ 1 file changed, 399 deletions(-) delete mode 100644 libmap/tz.c (limited to 'libmap/tz.c') diff --git a/libmap/tz.c b/libmap/tz.c deleted file mode 100644 index b77a8ef..0000000 --- a/libmap/tz.c +++ /dev/null @@ -1,399 +0,0 @@ -/* -*- 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 - * - * 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. - */ - - -#include -#include -#include -#include -#include -#include -#include -#include "tz.h" - - -/* Forward declarations for private functions */ - -static float convert_pos (gchar *pos, int digits); -static int compare_country_names (const void *a, const void *b); -static void sort_locations_by_country (GPtrArray *locations); -static gchar * tz_data_file_get (void); - - -/* ---------------- * - * Public interface * - * ---------------- */ -TzDB * -tz_load_db (void) -{ - gchar *tz_data_file; - TzDB *tz_db; - FILE *tzfile; - char buf[4096]; - - tz_data_file = tz_data_file_get (); - if (!tz_data_file) { - g_warning ("Could not get the TimeZone data file name"); - return NULL; - } - tzfile = fopen (tz_data_file, "r"); - if (!tzfile) { - g_warning ("Could not open *%s*\n", tz_data_file); - g_free (tz_data_file); - return NULL; - } - - tz_db = g_new0 (TzDB, 1); - tz_db->locations = g_ptr_array_new (); - - while (fgets (buf, sizeof(buf), tzfile)) - { - gchar **tmpstrarr; - gchar *latstr, *lngstr, *p; - TzLocation *loc; - - if (*buf == '#') continue; - - g_strchomp(buf); - tmpstrarr = g_strsplit(buf,"\t", 6); - - latstr = g_strdup (tmpstrarr[1]); - p = latstr + 1; - while (*p != '-' && *p != '+') p++; - lngstr = g_strdup (p); - *p = '\0'; - - loc = g_new0 (TzLocation, 1); - loc->country = g_strdup (tmpstrarr[0]); - loc->zone = g_strdup (tmpstrarr[2]); - loc->latitude = convert_pos (latstr, 2); - loc->longitude = convert_pos (lngstr, 3); - -#ifdef __sun - if (tmpstrarr[3] && *tmpstrarr[3] == '-' && tmpstrarr[4]) - loc->comment = g_strdup (tmpstrarr[4]); - - if (tmpstrarr[3] && *tmpstrarr[3] != '-' && !islower(loc->zone)) { - TzLocation *locgrp; - - /* duplicate entry */ - locgrp = g_new0 (TzLocation, 1); - locgrp->country = g_strdup (tmpstrarr[0]); - locgrp->zone = g_strdup (tmpstrarr[3]); - locgrp->latitude = convert_pos (latstr, 2); - locgrp->longitude = convert_pos (lngstr, 3); - locgrp->comment = (tmpstrarr[4]) ? g_strdup (tmpstrarr[4]) : NULL; - - g_ptr_array_add (tz_db->locations, (gpointer) locgrp); - } -#else - loc->comment = (tmpstrarr[3]) ? g_strdup(tmpstrarr[3]) : NULL; -#endif - - g_ptr_array_add (tz_db->locations, (gpointer) loc); - - g_free (latstr); - g_free (lngstr); - g_strfreev (tmpstrarr); - } - - fclose (tzfile); - - /* now sort by country */ - sort_locations_by_country (tz_db->locations); - - g_free (tz_data_file); - - return tz_db; -} - -static void -tz_location_free (TzLocation *loc) -{ - g_free (loc->country); - g_free (loc->zone); - g_free (loc->comment); - - g_free (loc); -} - -void -tz_db_free (TzDB *db) -{ - g_ptr_array_foreach (db->locations, (GFunc) tz_location_free, NULL); - g_ptr_array_free (db->locations, TRUE); - g_free (db); -} - -static gint -sort_locations (TzLocation *a, - TzLocation *b) -{ - if (a->dist > b->dist) - return 1; - - if (a->dist < b->dist) - return -1; - - return 0; -} - -static gdouble -convert_longtitude_to_x (gdouble longitude, gint map_width) -{ - const gdouble xdeg_offset = -6; - gdouble x; - - x = (map_width * (180.0 + longitude) / 360.0) - + (map_width * xdeg_offset / 180.0); - - return x; -} - -static gdouble -radians (gdouble degrees) -{ - return (degrees / 360.0) * G_PI * 2; -} - -static gdouble -convert_latitude_to_y (gdouble latitude, gdouble map_height) -{ - gdouble bottom_lat = -59; - gdouble top_lat = 81; - gdouble top_per, y, full_range, top_offset, map_range; - - top_per = top_lat / 180.0; - y = 1.25 * log (tan (G_PI_4 + 0.4 * radians (latitude))); - full_range = 4.6068250867599998; - top_offset = full_range * top_per; - map_range = fabs (1.25 * log (tan (G_PI_4 + 0.4 * radians (bottom_lat))) - top_offset); - y = fabs (y - top_offset); - y = y / map_range; - y = y * map_height; - return y; -} - -GPtrArray * -tz_get_locations (TzDB *db) -{ - return db->locations; -} - - -gchar * -tz_location_get_country (TzLocation *loc) -{ - return loc->country; -} - - -gchar * -tz_location_get_zone (TzLocation *loc) -{ - return loc->zone; -} - - -gchar * -tz_location_get_comment (TzLocation *loc) -{ - return loc->comment; -} - - -void -tz_location_get_position (TzLocation *loc, double *longitude, double *latitude) -{ - *longitude = loc->longitude; - *latitude = loc->latitude; -} - -glong -tz_location_get_utc_offset (TzLocation *loc) -{ - TzInfo *tz_info; - glong offset; - - tz_info = tz_info_from_location (loc); - offset = tz_info->utc_offset; - tz_info_free (tz_info); - return offset; -} - -gint -tz_location_set_locally (TzLocation *loc) -{ - time_t curtime; - struct tm *curzone; - gboolean is_dst = FALSE; - gint correction = 0; - - g_return_val_if_fail (loc != NULL, 0); - g_return_val_if_fail (loc->zone != NULL, 0); - - curtime = time (NULL); - curzone = localtime (&curtime); - is_dst = curzone->tm_isdst; - - setenv ("TZ", loc->zone, 1); -#if 0 - curtime = time (NULL); - curzone = localtime (&curtime); - - if (!is_dst && curzone->tm_isdst) { - correction = (60 * 60); - } - else if (is_dst && !curzone->tm_isdst) { - correction = 0; - } -#endif - - return correction; -} - -TzInfo * -tz_info_from_location (TzLocation *loc) -{ - TzInfo *tzinfo; - time_t curtime; - struct tm *curzone; - - g_return_val_if_fail (loc != NULL, NULL); - g_return_val_if_fail (loc->zone != NULL, NULL); - - setenv ("TZ", loc->zone, 1); - -#if 0 - tzset (); -#endif - tzinfo = g_new0 (TzInfo, 1); - - curtime = time (NULL); - curzone = localtime (&curtime); - -#ifndef __sun - /* Currently this solution doesnt seem to work - I get that */ - /* America/Phoenix uses daylight savings, which is wrong */ - tzinfo->tzname_normal = g_strdup (curzone->tm_zone); - if (curzone->tm_isdst) - tzinfo->tzname_daylight = - g_strdup (&curzone->tm_zone[curzone->tm_isdst]); - else - tzinfo->tzname_daylight = NULL; - - tzinfo->utc_offset = curzone->tm_gmtoff; -#else - tzinfo->tzname_normal = NULL; - tzinfo->tzname_daylight = NULL; - tzinfo->utc_offset = 0; -#endif - - tzinfo->daylight = curzone->tm_isdst; - - return tzinfo; -} - - -void -tz_info_free (TzInfo *tzinfo) -{ - g_return_if_fail (tzinfo != NULL); - - if (tzinfo->tzname_normal) g_free (tzinfo->tzname_normal); - if (tzinfo->tzname_daylight) g_free (tzinfo->tzname_daylight); - g_free (tzinfo); -} - -/* ----------------- * - * Private functions * - * ----------------- */ - -static gchar * -tz_data_file_get (void) -{ - gchar *file; - - file = g_strdup (TZ_DATA_FILE); - - return file; -} - -static float -convert_pos (gchar *pos, int digits) -{ - gchar whole[10]; - gchar *fraction; - gint i; - float t1, t2; - - if (!pos || strlen(pos) < 4 || digits > 9) return 0.0; - - for (i = 0; i < digits + 1; i++) whole[i] = pos[i]; - whole[i] = '\0'; - fraction = pos + digits + 1; - - t1 = g_strtod (whole, NULL); - t2 = g_strtod (fraction, NULL); - - if (t1 >= 0.0) return t1 + t2/pow (10.0, strlen(fraction)); - else return t1 - t2/pow (10.0, strlen(fraction)); -} - - -#if 0 - -/* Currently not working */ -static void -free_tzdata (TzLocation *tz) -{ - - if (tz->country) - g_free(tz->country); - if (tz->zone) - g_free(tz->zone); - if (tz->comment) - g_free(tz->comment); - - g_free(tz); -} -#endif - - -static int -compare_country_names (const void *a, const void *b) -{ - const TzLocation *tza = * (TzLocation **) a; - const TzLocation *tzb = * (TzLocation **) b; - - return strcmp (tza->zone, tzb->zone); -} - - -static void -sort_locations_by_country (GPtrArray *locations) -{ - qsort (locations->pdata, locations->len, sizeof (gpointer), - compare_country_names); -} -- cgit v1.2.3