Add marker layer to show center of the map for which the calculations are processed

data/icons/meson.build

@@ -16,3 +16,7 @@ install_data(
   'milky-way-symbolic.svg',
   install_dir: join_paths(get_option('datadir'), 'icons')
 )
+install_data(
+  'location-icon-symbolic-red.svg',
+  install_dir: join_paths(get_option('datadir'), 'icons')
+)

src/picplanner.gresource.xml

@@ -8,5 +8,6 @@
     <file>window/moon-page/moon-view.ui</file>
     <file>window/milky-way-page/milky-way-view.ui</file>
     <file>../data/icons/milky-way-symbolic.svg</file>
+    <file>../data/icons/location-icon-symbolic-red.svg</file>
   </gresource>
 </gresources>

src/window/overview-page/overview-view.c

@@ -10,24 +10,27 @@ static guint signal_input_changed;
 
 struct _PicplannerOverview
 {
-  GtkBox            parent_instance;
-  GtkWidget         *calendar;
-  GtkWidget         *calendar_popover;
-  GtkWidget         *calendar_button;
-  GtkWidget         *spin_button_hour;
-  GtkWidget         *spin_button_minute;
-  GtkWidget         *label_sun_rise;
-  GtkWidget         *label_sun_set;
-  GtkWidget         *label_moon_rise;
-  GtkWidget         *label_moon_set;
-  GtkWidget         *label_milky_way_rise;
-  GtkWidget         *label_milky_way_set;
-  ShumateSimpleMap  *map;
-  ShumateViewport   *viewport;
+  GtkBox              parent_instance;
+  GtkWidget           *calendar;
+  GtkWidget           *calendar_popover;
+  GtkWidget           *calendar_button;
+  GtkWidget           *spin_button_hour;
+  GtkWidget           *spin_button_minute;
+  GtkWidget           *label_sun_rise;
+  GtkWidget           *label_sun_set;
+  GtkWidget           *label_moon_rise;
+  GtkWidget           *label_moon_set;
+  GtkWidget           *label_milky_way_rise;
+  GtkWidget           *label_milky_way_set;
 
-  GDateTime         *date_time;
+  ShumateSimpleMap    *map;
+  ShumateViewport     *viewport;
+  ShumateMarker       *marker_central;
+  ShumateMarkerLayer  *marker_layer;
 
-  GSettings         *settings;
+  GDateTime           *date_time;
+
+  GSettings           *settings;
 };
 
 
@@ -150,6 +153,23 @@ picplanner_overview_set_current_coordinates_milky_way (PicplannerOverview *overv
   g_free (char_milky_way_set);
 }
 
+void
+picplanner_overview_update_map (PicplannerOverview *overview,
+                                double latitude,
+                                double longitude)
+{
+  GtkWidget *image = gtk_image_new_from_icon_name ("location-icon-symbolic-red");
+  gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
+
+  shumate_location_set_location (SHUMATE_LOCATION (overview->marker_central),
+                                 latitude,
+                                 longitude);
+  shumate_marker_set_child (overview->marker_central,
+                            image);
+  shumate_marker_layer_add_marker (overview->marker_layer,
+                                   overview->marker_central);
+}
+
 
 /*
  * Changing the date_time variable after a user input was recognized.
@@ -282,6 +302,9 @@ picplanner_overview_init (PicplannerOverview *overview)
   map_source = shumate_map_source_registry_get_by_id (registry, SHUMATE_MAP_SOURCE_OSM_MAPNIK);
   shumate_simple_map_set_map_source (overview->map, map_source);
   overview->viewport = shumate_simple_map_get_viewport (overview->map);
+  overview->marker_layer = shumate_marker_layer_new (overview->viewport);
+  shumate_simple_map_add_overlay_layer (overview->map, SHUMATE_LAYER (overview->marker_layer));
+  overview->marker_central = shumate_marker_new ();
 
   /*
    * Make all the bindings between widget properties and g_settings.

src/window/overview-page/overview-view.h

@@ -13,12 +13,20 @@ GDateTime
 *picplanner_overview_get_date_time (PicplannerOverview *overview);
 
 void
-picplanner_overview_set_current_coordinates_sun (PicplannerOverview *overview, int *rise_upper_set_index);
+picplanner_overview_set_current_coordinates_sun (PicplannerOverview *overview,
+                                                 int *rise_upper_set_index);
 
 void
-picplanner_overview_set_current_coordinates_moon (PicplannerOverview *overview, int *rise_upper_set_index);
+picplanner_overview_set_current_coordinates_moon (PicplannerOverview *overview,
+                                                  int *rise_upper_set_index);
 
 void
-picplanner_overview_set_current_coordinates_milky_way (PicplannerOverview *overview, int *rise_upper_set_index);
+picplanner_overview_set_current_coordinates_milky_way (PicplannerOverview *overview,
+                                                       int *rise_upper_set_index);
+
+void
+picplanner_overview_update_map (PicplannerOverview *overview,
+                                double latitude,
+                                double longitude);
 
 G_END_DECLS

src/window/picplanner-window.c

@@ -292,6 +292,12 @@ calculate_positions (PicplannerWindow *window)
                                            rise_upper_set_index_milky_way);
 
 
+  /*
+   * Update Shumate Map
+   */
+  picplanner_overview_update_map (PICPLANNER_OVERVIEW (window->overview_box), latitude, longitude);
+
+
   g_free (rise_upper_set_index_sun);
   g_free (rise_upper_set_index_moon);
   g_free (rise_upper_set_index_milky_way);