C++ (Cpp) eog_exif_data_get_value Exemples

Exemple #1

Fichier : eog-map-plugin.c Projet : eldh0se/eog-plugins

static gboolean
get_coordinates (EogImage *image,
		 gdouble *latitude,
		 gdouble *longitude)
{
	ExifData *exif_data;
	gchar buffer[32];
	gdouble lon, lat;

	exif_data = (ExifData *) eog_image_get_exif_info (image);

	if (exif_data) {
		ExifEntry *entry;
		ExifByteOrder byte_order;

		byte_order = exif_data_get_byte_order (exif_data);
		entry = exif_data_get_entry (exif_data,
					     EXIF_TAG_GPS_LONGITUDE);

		if (!parse_exif_gps_coordinate (entry, &lon, byte_order)
		    || (lon > 180.0)) {
			exif_data_unref (exif_data);
			return FALSE;
		}


		eog_exif_data_get_value (exif_data,
					 EXIF_TAG_GPS_LONGITUDE_REF,
					 buffer,
					 32);
		if (strcmp (buffer, "W") == 0)
			lon *= -1;

		entry = exif_data_get_entry (exif_data,
					     EXIF_TAG_GPS_LATITUDE);

		if (!parse_exif_gps_coordinate (entry, &lat, byte_order)
		    || (lat > 90.0)) {
			exif_data_unref (exif_data);
			return FALSE;
		}

		eog_exif_data_get_value (exif_data,
					 EXIF_TAG_GPS_LATITUDE_REF,
					 buffer,
					 32);
		if (strcmp (buffer, "S") == 0)
			lat *= -1;

		*longitude = lon;
		*latitude = lat;

		exif_data_unref (exif_data);
		return TRUE;
	}
	return FALSE;
}

Exemple #2

Fichier : eog-exif-util.c Projet : UIKit0/eog

void
eog_exif_util_set_label_text (GtkLabel *label,
			      EogExifData *exif_data,
			      gint tag_id)
{
	gchar exif_buffer[512];
	const gchar *buf_ptr;
	gchar *label_text = NULL;

	g_return_if_fail (GTK_IS_LABEL (label));

	if (exif_data) {
		buf_ptr = eog_exif_data_get_value (exif_data, tag_id,
						   exif_buffer, 512);

		if (tag_id == EXIF_TAG_DATE_TIME_ORIGINAL && buf_ptr)
			label_text = eog_exif_util_format_date (buf_ptr);
		else
			label_text = eog_util_make_valid_utf8 (buf_ptr);
	}

	gtk_label_set_text (label, label_text);
	g_free (label_text);
}