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/*-
* redshift-ng - Automatically adjust display colour temperature according the Sun
*
* Copyright (c) 2009-2018 Jon Lund Steffensen <jonlst@gmail.com>
* Copyright (c) 2014-2016, 2025 Mattias Andrée <m@maandree.se>
*
* redshift-ng 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 3 of the License, or
* (at your option) any later version.
*
* redshift-ng 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 redshift-ng. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
struct location_state {
/**
* The specified location, any unspecified coordinate is set to NAN
*/
struct location location;
};
static int
manual_create(struct location_state **state_out)
{
*state_out = emalloc(sizeof(**state_out));
(*state_out)->location.latitude = FNAN;
(*state_out)->location.longitude = FNAN;
return 0;
}
GCC_ONLY(__attribute__((__pure__)))
static int
manual_start(struct location_state *state)
{
if (isnan(state->location.latitude) || isnan(state->location.longitude))
eprintf(_("Latitude and longitude must be set."));
return 0;
}
static void
manual_free(struct location_state *state)
{
free(state);
}
static void
manual_print_help(void)
{
printf(_("Specify location manually.\n"));
printf("\n");
/* TRANSLATORS: "N" represents "cardinal"; right-pad with spaces to preserve display width */
printf(" lat=%s %s\n", _("N "), _("Latitude"));
printf(" lon=%s %s\n", _("N "), _("Longitude"));
printf("\n");
printf(_("Both values are expected to be floating point numbers,\n"
"negative values representing west / south, respectively.\n"));
printf("\n");
}
static int
manual_set_option(struct location_state *state, const char *key, const char *value)
{
char *end;
double v;
errno = 0;
v = strtod(value, &end);
if (errno || *end) {
weprintf(_("Malformed argument."));
return -1;
}
if (!strcasecmp(key, "lat")) {
state->location.latitude = v;
} else if (!strcasecmp(key, "lon")) {
state->location.longitude = v;
} else {
weprintf(_("Unknown method parameter: `%s'."), key);
return -1;
}
return 0;
}
static int
manual_get_fd(struct location_state *state)
{
(void) state;
return -1;
}
static int
manual_fetch(struct location_state *state, struct location *location_out, int *available_out)
{
*location_out = state->location;
*available_out = 1;
return 0;
}
const struct location_provider manual_location_provider = LOCATION_PROVIDER_INIT("manual", manual);
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