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/* Eye Of Gnome - EXIF Utilities
*
* Copyright (C) 2006-2007 The Free Software Foundation
*
* Author: Lucas Rocha <lucasr@gnome.org>
* Author: Claudio Saavedra <csaavedra@alumnos.utalca.cl>
* Author: Felix Riemann <felix@hsgheli.de>
*
* Based on code by:
* - Jens Finke <jens@gnome.org>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_STRPTIME
#define _XOPEN_SOURCE
#endif
#include <time.h>
#include "eog-exif-util.h"
#include <string.h>
#include <glib/gi18n.h>
#define DATE_BUF_SIZE 200
#ifdef HAVE_STRPTIME
static gchar *
eog_exif_util_format_date_with_strptime (const gchar *date)
{
gchar *new_date = NULL;
gchar tmp_date[DATE_BUF_SIZE];
gchar *p;
gsize dlen;
struct tm tm;
memset (&tm, '\0', sizeof (tm));
p = strptime (date, "%Y:%m:%d %T", &tm);
if (p == date + strlen (date)) {
/* A strftime-formatted string, to display the date the image was taken. */
dlen = strftime (tmp_date, DATE_BUF_SIZE * sizeof(gchar), _("%a, %d %B %Y %X"), &tm);
new_date = g_strndup (tmp_date, dlen);
}
return new_date;
}
#else
static gchar *
eog_exif_util_format_date_by_hand (const gchar *date)
{
int year, month, day, hour, minutes, seconds;
int result;
gchar *new_date = NULL;
result = sscanf (date, "%d:%d:%d %d:%d:%d",
&year, &month, &day, &hour, &minutes, &seconds);
if (result < 3 || !g_date_valid_dmy (day, month, year)) {
return NULL;
} else {
gchar tmp_date[DATE_BUF_SIZE];
gsize dlen;
time_t secs;
struct tm tm;
memset (&tm, '\0', sizeof (tm));
tm.tm_mday = day;
tm.tm_mon = month-1;
tm.tm_year = year-1900;
if (result < 5) {
/* A strftime-formatted string, to display the date the image was taken, for the case we don't have the time. */
dlen = strftime (tmp_date, DATE_BUF_SIZE * sizeof(gchar), _("%a, %d %B %Y"), &tm);
} else {
tm.tm_sec = result < 6 ? 0 : seconds;
tm.tm_min = minutes;
tm.tm_hour = hour;
/* A strftime-formatted string, to display the date the image was taken. */
dlen = strftime (tmp_date, DATE_BUF_SIZE * sizeof(gchar), _("%a, %d %B %Y %X"), &tm);
}
if (dlen == 0)
return NULL;
else
new_date = g_strndup (tmp_date, dlen);
}
return new_date;
}
#endif /* HAVE_STRPTIME */
gchar *
eog_exif_util_format_date (const gchar *date)
{
gchar *new_date;
#ifdef HAVE_STRPTIME
new_date = eog_exif_util_format_date_with_strptime (date);
#else
new_date = eog_exif_util_format_date_by_hand (date);
#endif /* HAVE_STRPTIME */
return new_date;
}
const gchar *
eog_exif_util_get_value (ExifData *exif_data, gint tag_id, gchar *buffer, guint buf_size)
{
ExifEntry *exif_entry;
const gchar *exif_value;
exif_entry = exif_data_get_entry (exif_data, tag_id);
buffer[0] = 0;
exif_value = exif_entry_get_value (exif_entry, buffer, buf_size);
return exif_value;
}
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