Geocoding: associate a lat/lon to a place name (#515)

* Geocoding: associate a lat/lon to a place name

Fixes #09642

* Some cleanup

* update README.md

* Remove url from message dialog

README.md

@@ -98,6 +98,18 @@ The following packages are optional:
 
  More font support in the reports
 
+* **geocodeglib**
+
+ A library use to associate a geographical position (latitude, longitude)
+ to a place name. This is used if you already have osmgpsmap installed.
+ If installed, when you add or link a place from the map, you have a red line
+ at the end of the table for selection.
+ Debian, Ubuntu, ... : gir1.2-geocodeglib-1.0
+ Fedora, Redhat, ... : geocode-glib
+ openSUSE            : geocode-glib
+ ArchLinux           : geocode-glib
+ ...
+
 Optional packages required by Third-party Addons
 ------------------------------------------------
 

gramps/plugins/lib/maps/geography.py

@@ -1034,6 +1034,19 @@ class GeoGraphyView(OsmGps, NavigationView):
                         pass
         kml.destroy()
 
+    def place_exists(self, place_name):
+        """
+        Do we have already this place in our database ?
+        return the handle for this place.
+        """
+        found = None
+        place_name = place_name.replace('-', ' ').lower()
+        for place in self.dbstate.db.iter_places():
+            if place.name.get_value().lower() == place_name:
+                found = place.handle
+                break
+        return found
+
     def link_place(self, menu, event, lat, lon):
         """
         Link an existing place using longitude and latitude of location centered
@@ -1108,6 +1121,24 @@ class GeoGraphyView(OsmGps, NavigationView):
                 placeref = PlaceRef()
                 placeref.ref = parent
                 new_place.add_placeref(placeref)
+            elif isinstance(parent, gi.overrides.Gtk.TreeModelRow):
+                # We are here because we selected a place from geocoding
+                # parent[0] : country
+                # parent[1] : state
+                # parent[2] : town
+                # parent[3] : name
+                value = PlaceSelection.untag_text(parent[2], 1)
+                plname = PlaceName()
+                plname.set_value(value)
+                handle = self.place_exists(value)
+                if handle:
+                    # The town already exists. We create a place with name
+                    placeref = PlaceRef()
+                    placeref.ref = handle
+                    new_place.add_placeref(placeref)
+                    value = PlaceSelection.untag_text(parent[3], 1)
+                    plname.set_value(value)
+                new_place.set_name(plname)
             else:
                 found = None
                 for place in self.dbstate.db.iter_places():

gramps/plugins/lib/maps/placeselection.py

@@ -43,7 +43,14 @@ _LOG = logging.getLogger("maps.placeselection")
 # GTK/Gnome modules
 #
 #-------------------------------------------------------------------------
+import gi
 from gi.repository import Gtk
+try:
+    gi.require_version('GeocodeGlib', '1.0')
+    from gi.repository import GeocodeGlib
+    GEOCODEGLIB = True
+except:
+    GEOCODEGLIB = False
 
 #-------------------------------------------------------------------------
 #
@@ -66,6 +73,8 @@ from gramps.gen.display.place import displayer as _pd
 #-------------------------------------------------------------------------
 PLACE_REGEXP = re.compile('<span background="green">(.*)</span>')
 PLACE_STRING = '<span background="green">%s</span>'
+GEOCODE_REGEXP = re.compile('<span background="red">(.*)</span>')
+GEOCODE_STRING = '<span background="red">%s</span>'
 
 # pylint: disable=unused-argument
 # pylint: disable=no-member
@@ -110,9 +119,14 @@ class PlaceSelection(ManagedWindow, OsmGps):
             Gtk.Dialog(_('Place Selection in a region'), uistate.window,
                        buttons=(_('_Close'), Gtk.ResponseType.CLOSE)),
             None, _('Place Selection in a region'), None)
-        label = Gtk.Label(label=_('Choose the radius of the selection.\n'
+        mylabel = _('Choose the radius of the selection.\n'
                     'On the map you should see a circle or an'
-                            ' oval depending on the latitude.'))
+                    ' oval depending on the latitude.')
+        mylabel += _('\nIn the following table you may have :'
+                     '\n - a green row related to a selected place.')
+        if GEOCODEGLIB:
+            mylabel += _('\n - a red row related to a geocoding result.')
+        label = Gtk.Label(label=mylabel)
         label.set_valign(Gtk.Align.END)
         self.window.vbox.pack_start(label, False, True, 0)
         adj = Gtk.Adjustment(value=1.0, lower=0.1, upper=3.0,
@@ -193,6 +207,17 @@ class PlaceSelection(ManagedWindow, OsmGps):
             self.plist.append((place[0], place[1],
                                place[2], place[3], place[4]))
         # here, we could add value from geography names services ...
+        if GEOCODEGLIB:
+            loc = GeocodeGlib.Location.new(lat, lon, 0)
+            obj = GeocodeGlib.Reverse.new_for_location(loc)
+            try:
+                result = GeocodeGlib.Reverse.resolve(obj)
+                self.plist.append((GEOCODE_STRING % result.get_country(),
+                                   GEOCODE_STRING % result.get_state(),
+                                   GEOCODE_STRING % result.get_town(),
+                                   GEOCODE_STRING % result.get_name(), ''))
+            except:
+                pass
 
         # if we found no place, we must create a default place.
         self.plist.append((_("New place with empty fields"), "",
@@ -299,4 +324,22 @@ class PlaceSelection(ManagedWindow, OsmGps):
         """
         get location values and call the real function : add_place, edit_place
         """
-        self.function(self.plist[index][3], self.lat, self.lon)
+        self.function(self.plist[index], self.lat, self.lon)
+
+    def untag_text(text, tag):
+        """
+        suppress the green or red color tag.
+        if tag = 0 : PLACE_REGEXP
+        if tag = 1 : GEOCODE_REGEXP
+        """
+
+        if tag:
+            regtag = GEOCODE_REGEXP
+        else:
+            regtag = PLACE_REGEXP
+
+        match = regtag.match(text)
+        if match:
+            without_tags = match.groups()[0]
+            return without_tags
+        return text

gramps/plugins/view/geography.gpr.py

@@ -64,14 +64,15 @@ if not OSMGPSMAP:
         if has_display():
             from gramps.gui.dialog import MessageHideDialog
             from gramps.gen.const import URL_WIKISTRING
-            OSMGPS_DICT = {'gramps_wiki_build_osmgps_url' :
-                                URL_WIKISTRING +
-                                    "GEPS_029:_GTK3-GObject_introspection"
-                                    "_Conversion#OsmGpsMap_for_Geography"}
             TITLE = _("OsmGpsMap module not loaded.")
             MESSAGE = _("Geography functionality will not be available.\n"
-                       "To build it for Gramps see "
-                       "%(gramps_wiki_build_osmgps_url)s") % OSMGPS_DICT
+                       "Try to install:\n"
+                       " gir1.2-osmgpsmap-1.0 (debian, ubuntu, ...)\n"
+                       " osm-gps-map-gobject-1.0.1 for fedora, ...\n"
+                       " typelib-1_0-OsmGpsMap-1_0 for openSuse\n"
+                       " ...\n"
+                       "To build it for Gramps see the Wiki (<F1>)\n"
+                       " and search for 'build from source'")
             if uistate:
                 MessageHideDialog(TITLE, MESSAGE,
                                   'interface.ignore-osmgpsmap',