--- /dev/null
+<?xml version="1.0" encoding="utf-8"?>\r
+<section id="GuideReferenceDecodeLatLong">\r
+ <title id="titleGuideReferenceDecodeLatLong">Decoding Latitude and Longitude</title>\r
+ <para>This section is relevent to the search option "Search on geo-location".</para>\r
+ <para>\r
+ The result of some internet or other searches for placenames can contain a latitude and longitude embedded in a text string. For example an openstreetmap.org search can give a URL such as:\r
+ <para />\r
+ <code>https://www.openstreetmap.org/search?query=51.5542%2C-0.1816#map=12/51.5542/-0.1818</code>\r
+ </para>\r
+ <para>\r
+ If you paste such a string into the search box, the latitude/longitude can be automatically extracted and used as the origin of the search. To do this create the file\r
+ <para />\r
+ <code>~/.config/geeqie/geocode-parameters.awk</code>\r
+ <para />\r
+ and copy the following text into it:\r
+ </para>\r
+ <para>\r
+ <programlisting xml:space="preserve">\r
+# Store this file in:\r
+# ~/.config/geeqie/geocode-parameters.awk\r
+#\r
+# This file is used by the Search option "search on geo-position".\r
+# It is used to decode the results of internet or other searches\r
+# to extract a geo-position from a text string. \r
+# To include other searches, follow the examples below and\r
+# ensure the returned value is either in the format:\r
+# 89.123 179.123\r
+# or\r
+# Error: $0\r
+#\r
+\r
+function check_parameters(latitude, longitude)\r
+ {\r
+ # Ensure the parameters are numbers \r
+ if ((latitude == (latitude+0)) && (longitude == (longitude+0)))\r
+ {\r
+ if (latitude >= -90 && latitude <= 90 &&\r
+ longitude >= -180 && longitude <= 180)\r
+ {\r
+ return latitude " " longitude\r
+ }\r
+ else\r
+ {\r
+ return "Error: " latitude " " longitude\r
+ }\r
+ }\r
+ else\r
+ {\r
+ return "Error: " latitude " " longitude\r
+ }\r
+ }\r
+\r
+# This awk file is accessed by the decode_geo_parameters() function\r
+# in search.c. The call is of the format:\r
+# echo "string_to_be_searched" | awk -f geocode-parameters.awk\r
+#\r
+# Search the input string for known formats.\r
+{\r
+if (index($0, "http://www.geonames.org/maps/google_"))\r
+ {\r
+ # This is a drag-and-drop or copy-paste from a geonames.org search\r
+ # in the format e.g.\r
+ # http://www.geonames.org/maps/google_51.513_-0.092.html\r
+ \r
+ gsub(/http:\/\/www.geonames.org\/maps\/google_/, "")\r
+ gsub(/.html/, "")\r
+ gsub(/_/, " ")\r
+ print check_parameters($1, $2)\r
+ }\r
+\r
+else if (index($0, "https://www.openstreetmap.org/search?query="))\r
+ {\r
+ # This is a copy-paste from an openstreetmap.org search\r
+ # in the format e.g.\r
+ # https://www.openstreetmap.org/search?query=51.4878%2C-0.1353#map=11/51.4880/-0.1356\r
+ \r
+ gsub(/https:\/\/www.openstreetmap.org\/search\?query=/, "")\r
+ gsub(/#map=.*/, "")\r
+ gsub(/%2C/, " ")\r
+ print check_parameters($1, $2)\r
+ }\r
+\r
+else if (index($0, "https://www.openstreetmap.org/#map="))\r
+ {\r
+ # This is a copy-paste from an openstreetmap.org search\r
+ # in the format e.g.\r
+ # https://www.openstreetmap.org/#map=5/18.271/16.084\r
+ \r
+ gsub(/https:\/\/www.openstreetmap.org\/#map=[^\/]*/,"")\r
+ gsub(/\//," ")\r
+ print check_parameters($1, $2)\r
+ }\r
+\r
+else if (index($0, "https://www.google.com/maps/"))\r
+ {\r
+ # This is a copy-paste from a google.com maps search\r
+ # in the format e.g.\r
+ # https://www.google.com/maps/place/London,+UK/@51.5283064,-0.3824815,10z/data=....\r
+ \r
+ gsub(/https:\/\/www.google.com\/maps.*@/,"")\r
+ sub(/,/," ")\r
+ gsub(/,.*/,"")\r
+ print check_parameters($1, $2)\r
+ }\r
+\r
+else if (index($0,".html"))\r
+ {\r
+ # This is an unknown html address\r
+ \r
+ print "Error: " $0\r
+ }\r
+\r
+else if (index($0,"http"))\r
+ {\r
+ # This is an unknown html address\r
+ \r
+ print "Error: " $0\r
+ }\r
+\r
+else if (index($0, ","))\r
+ {\r
+ # This is assumed to be a simple lat/long of the format:\r
+ # 89.123,179.123\r
+ \r
+ split($0, latlong, ",")\r
+ print check_parameters(latlong[1], latlong[2])\r
+ }\r
+\r
+else\r
+ {\r
+ # This is assumed to be a simple lat/long of the format:\r
+ # 89.123 179.123\r
+ \r
+ split($0, latlong, " ")\r
+ print check_parameters(latlong[1], latlong[2])\r
+ }\r
+}\r
+\r
+ </programlisting>\r
+ </para>\r
+</section>\r
#include "image-load.h"
#include "img-view.h"
#include "layout.h"
+#include "math.h"
#include "menu.h"
#include "metadata.h"
#include "misc.h"
#define SEARCH_BUFFER_MATCH_MISS 1
#define SEARCH_BUFFER_FLUSH_SIZE 99
+#define GEOCODE_NAME "geocode-parameters.awk"
typedef enum {
SEARCH_MATCH_NONE,
MatchType match_dimensions;
MatchType match_keywords;
MatchType match_comment;
+ MatchType match_gps;
gboolean match_name_enable;
gboolean match_size_enable;
ThumbLoader *thumb_loader;
gboolean thumb_enable;
FileData *thumb_fd;
+
+ /* Used for lat/long coordinate search
+ */
+ gint search_gps;
+ gdouble search_lat, search_lon;
+ GtkWidget *entry_gps_coord;
+ GtkWidget *check_gps;
+ GtkWidget *spin_gps;
+ GtkWidget *units_gps;
+ GtkWidget *menu_gps;
+ gboolean match_gps_enable;
+
};
typedef struct _MatchFileData MatchFileData;
{ N_("miss"), SEARCH_MATCH_NONE }
};
+static const MatchList text_search_menu_gps[] = {
+ { N_("not geocoded"), SEARCH_MATCH_NONE },
+ { N_("less than"), SEARCH_MATCH_UNDER },
+ { N_("greater than"), SEARCH_MATCH_OVER }
+};
+
static GList *search_window_list = NULL;
};
static gint n_result_drag_types = 2;
+static GtkTargetEntry result_drop_types[] = {
+ { "text/uri-list", 0, TARGET_URI_LIST },
+ { "text/plain", 0, TARGET_TEXT_PLAIN }
+};
+static gint n_result_drop_types = 2;
+
static void search_dnd_data_set(GtkWidget *widget, GdkDragContext *context,
GtkSelectionData *selection_data, guint info,
guint time, gpointer data)
}
}
+#define BUFSIZE 128
+
+static gchar *decode_geo_parameters(const gchar *input_text)
+{
+ gchar *message;
+ gchar *path = g_build_filename(get_rc_dir(), GEOCODE_NAME, NULL);
+ gchar *cmd = g_strconcat("echo \'", input_text, "\' | awk -f ", path, NULL);
+
+ if (g_file_test(path, G_FILE_TEST_EXISTS))
+ {
+ gchar buf[BUFSIZE];
+ FILE *fp;
+
+ if ((fp = popen(cmd, "r")) == NULL)
+ {
+ message = g_strconcat("Error: opening pipe\n", input_text, NULL);
+ }
+ else
+ {
+ fgets(buf, BUFSIZE, fp);
+ message = g_strconcat(buf, NULL);
+
+ if(pclose(fp))
+ {
+ message = g_strconcat("Error: Command not found or exited with error status\n", input_text, NULL);
+ }
+ }
+ }
+ else
+ {
+ message = g_strconcat(input_text, NULL);
+ }
+
+ g_free(path);
+ g_free(cmd);
+ return message;
+}
+
+static void search_gps_dnd_received_cb(GtkWidget *pane, GdkDragContext *context,
+ gint x, gint y,
+ GtkSelectionData *selection_data, guint info,
+ guint time, gpointer data)
+{
+ SearchData *sd = data;
+ GList *list;
+ gdouble latitude, longitude;
+ FileData *fd;
+
+ if (info == TARGET_URI_LIST)
+ {
+ list = uri_filelist_from_gtk_selection_data(selection_data);
+
+ /* If more than one file, use only the first file in a list.
+ */
+ if (list != NULL)
+ {
+ fd = list->data;
+ latitude = metadata_read_GPS_coord(fd, "Xmp.exif.GPSLatitude", 1000);
+ longitude = metadata_read_GPS_coord(fd, "Xmp.exif.GPSLongitude", 1000);
+ if (latitude != 1000 && longitude != 1000)
+ {
+ gtk_entry_set_text(GTK_ENTRY(sd->entry_gps_coord),
+ g_strdup_printf("%lf %lf", latitude, longitude));
+ }
+ else
+ {
+ gtk_entry_set_text(GTK_ENTRY(sd->entry_gps_coord), "Image is not geocoded");
+ }
+ }
+ }
+
+ if (info == TARGET_TEXT_PLAIN)
+ {
+ gtk_entry_set_text(GTK_ENTRY(sd->entry_gps_coord),"");
+ }
+}
+
static void search_dnd_init(SearchData *sd)
{
gtk_drag_source_set(sd->result_view, GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
G_CALLBACK(search_dnd_data_set), sd);
g_signal_connect(G_OBJECT(sd->result_view), "drag_begin",
G_CALLBACK(search_dnd_begin), sd);
+
+ gtk_drag_dest_set(GTK_WIDGET(sd->entry_gps_coord),
+ GTK_DEST_DEFAULT_ALL,
+ result_drop_types, n_result_drop_types,
+ GDK_ACTION_COPY);
+
+ g_signal_connect(G_OBJECT(sd->entry_gps_coord), "drag_data_received",
+ G_CALLBACK(search_gps_dnd_received_cb), sd);
}
/*
}
}
- if ((match || extra_only) &&
- (sd->match_dimensions_enable || sd->match_similarity_enable))
+ if (match && sd->match_gps_enable)
+ {
+ /* Calculate the distance the image is from the specified origin.
+ * This is a standard algorithm. A simplified one may be faster.
+ */
+ #define RADIANS 0.0174532925
+ #define KM_EARTH_RADIUS 6371
+ #define MILES_EARTH_RADIUS 3959
+ #define NAUTICAL_MILES_EARTH_RADIUS 3440
+
+ gdouble latitude, longitude, range, conversion;
+
+ if (g_strcmp0(gtk_combo_box_text_get_active_text(
+ GTK_COMBO_BOX_TEXT(sd->units_gps)), _("km")) == 0)
+ {
+ conversion = KM_EARTH_RADIUS;
+ }
+ else if (g_strcmp0(gtk_combo_box_text_get_active_text(
+ GTK_COMBO_BOX_TEXT(sd->units_gps)), _("miles")) == 0)
+ {
+ conversion = MILES_EARTH_RADIUS;
+ }
+ else
+ {
+ conversion = NAUTICAL_MILES_EARTH_RADIUS;
+ }
+
+ tested = TRUE;
+ match = FALSE;
+
+ latitude = metadata_read_GPS_coord(fd, "Xmp.exif.GPSLatitude", 1000);
+ longitude = metadata_read_GPS_coord(fd, "Xmp.exif.GPSLongitude", 1000);
+ if (latitude != 1000 && longitude != 1000)
+ {
+ range = conversion * acos(sin(latitude * RADIANS) *
+ sin(sd->search_lat * RADIANS) + cos(latitude * RADIANS) *
+ cos(sd->search_lat * RADIANS) * cos((sd->search_lon -
+ longitude) * RADIANS));
+ if (sd->match_gps == SEARCH_MATCH_UNDER)
+ {
+ if (sd->search_gps >= range)
+ match = TRUE;
+ }
+ else if (sd->match_gps == SEARCH_MATCH_OVER)
+ {
+ if (sd->search_gps < range)
+ match = TRUE;
+ }
+ }
+ else if (sd->match_gps == SEARCH_MATCH_NONE)
+ {
+ match = TRUE;
+ }
+ }
+
+ if ((match || extra_only) && (sd->match_dimensions_enable ||
+ sd ->match_similarity_enable))
{
tested = TRUE;
SearchData *sd = data;
GtkTreeViewColumn *column;
gchar *path;
+ gchar *entry_text;
if (sd->search_folder_list)
{
tab_completion_append_to_history(sd->entry_similarity, sd->search_similarity_path);
}
+ /* Check the coordinate entry.
+ * If the result is not sensible, it should get blocked.
+ */
+ if (sd->match_gps_enable)
+ {
+ if (sd->match_gps != SEARCH_MATCH_NONE)
+ {
+ entry_text = decode_geo_parameters(gtk_entry_get_text(
+ GTK_ENTRY(sd->entry_gps_coord)));
+
+ sd->search_lat = 1000;
+ sd->search_lon = 1000;
+ sscanf(entry_text," %lf %lf ", &sd->search_lat, &sd->search_lon );
+ if (!(entry_text != NULL && !g_strstr_len(entry_text, -1, "Error") &&
+ sd->search_lat >= -90 && sd->search_lat <= 90 &&
+ sd->search_lon >= -180 && sd->search_lon <= 180))
+ {
+ file_util_warning_dialog(_(
+ "Entry does not contain a valid lat/long value"),
+ entry_text, GTK_STOCK_DIALOG_WARNING, sd->window);
+ return;
+ }
+ g_free(entry_text);
+ }
+ }
+
string_list_free(sd->search_keyword_list);
sd->search_keyword_list = keyword_list_pull(sd->entry_keywords);
*value = (gint)gtk_adjustment_get_value(adjustment);
}
+static void menu_choice_gps_cb(GtkWidget *combo, gpointer data)
+{
+ SearchData *sd = data;
+
+ if (!menu_choice_get_match_type(combo, &sd->match_gps)) return;
+
+ menu_choice_set_visible(gtk_widget_get_parent(sd->spin_gps),
+ (sd->match_gps != SEARCH_MATCH_NONE));
+}
+
static GtkWidget *menu_spin(GtkWidget *box, gdouble min, gdouble max, gint value,
GCallback func, gpointer data)
{
sd->search_similarity = 95;
+ sd->search_gps = 1;
+ sd->match_gps = SEARCH_MATCH_NONE;
+
if (example_file)
{
sd->search_similarity_path = g_strdup(example_file->path);
pref_checkbox_new_int(hbox, _("Match case"),
sd->search_comment_match_case, &sd->search_comment_match_case);
+ /* Search for images within a specified range of a lat/long coordinate
+ */
+ hbox = menu_choice(sd->box_search, &sd->check_gps, &sd->menu_gps,
+ _("Image is"), &sd->match_gps_enable,
+ text_search_menu_gps, sizeof(text_search_menu_gps) / sizeof(MatchList),
+ G_CALLBACK(menu_choice_gps_cb), sd);
+
+ hbox2 = gtk_hbox_new(FALSE, PREF_PAD_SPACE);
+ gtk_box_pack_start(GTK_BOX(hbox), hbox2, FALSE, FALSE, 0);
+ sd->spin_gps = menu_spin(hbox2, 1, 9999, sd->search_gps,
+ G_CALLBACK(menu_choice_spin_cb), &sd->search_gps);
+
+ sd->units_gps = gtk_combo_box_text_new();
+ gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(sd->units_gps), _("km"));
+ gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(sd->units_gps), _("miles"));
+ gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(sd->units_gps), _("n.m."));
+ gtk_box_pack_start(GTK_BOX(hbox2), sd->units_gps, FALSE, FALSE, 0);
+ gtk_combo_box_set_active(GTK_COMBO_BOX(sd->units_gps), 0);
+ gtk_widget_set_tooltip_text(sd->units_gps, "kilometres, miles or nautical miles");
+ gtk_widget_show(sd->units_gps);
+
+ pref_label_new(hbox2, _("from"));
+
+ sd->entry_gps_coord = gtk_entry_new();
+ gtk_editable_set_editable(GTK_EDITABLE(sd->entry_gps_coord), TRUE);
+ gtk_widget_set_has_tooltip(sd->entry_gps_coord, TRUE);
+ gtk_widget_set_tooltip_text(sd->entry_gps_coord, _("Enter a coordinate in the form:\n89.123 179.456\nor drag-and-drop a geo-coded image\nor left-click on the map and paste\nor cut-and-paste or drag-and-drop\nan internet search URL\nSee the Help file"));
+ gtk_box_pack_start(GTK_BOX(hbox2), sd->entry_gps_coord, TRUE, TRUE, 0);
+ gtk_widget_set_sensitive(sd->entry_gps_coord, TRUE);
+
+ gtk_widget_show(sd->entry_gps_coord);
+
/* Done the types of searches */
scrolled = gtk_scrolled_window_new(NULL, NULL);
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