egui,tests: fix compilation errors

src/autorouter/autorouter.rs

@@ -57,7 +57,7 @@ impl Autoroute {
             let (from, to) = Self::edge_from_to(autorouter, cur_edge);
 
             let layout = autorouter.layout.lock().unwrap();
-            Some(Navmesh::new(&layout, from, to).ok()?)
+            Some(Navmesh::new(&layout, from, to).ok().unwrap())
         } else {
             None
         };
@@ -109,14 +109,14 @@ impl Autoroute {
 }
 
 pub struct Autorouter<R: RulesTrait> {
-    ratsnest: Ratsnest,
     layout: Arc<Mutex<Layout<R>>>,
+    ratsnest: Ratsnest,
 }
 
 impl<R: RulesTrait> Autorouter<R> {
     pub fn new(layout: Arc<Mutex<Layout<R>>>) -> Result<Self, InsertionError> {
         let ratsnest = Ratsnest::new(&layout.lock().unwrap())?;
-        Ok(Self { ratsnest, layout })
+        Ok(Self { layout, ratsnest })
     }
 
     pub fn autoroute(&mut self, layer: u64, observer: &mut impl RouterObserverTrait<R>) {
@@ -134,4 +134,8 @@ impl<R: RulesTrait> Autorouter<R> {
     pub fn layout(&self) -> &Arc<Mutex<Layout<R>>> {
         &self.layout
     }
+
+    pub fn ratsnest(&self) -> &Ratsnest {
+        &self.ratsnest
+    }
 }

src/bin/topola-egui/app.rs

@@ -203,23 +203,24 @@ impl eframe::App for App {
                         execute(async move {
                             let mut autorouter = Autorouter::new(layout).unwrap();
                             if let Some(mut autoroute) = autorouter.autoroute_walk() {
-                                let from_to = autoroute.from_to(&autorouter);
+                                let from = autoroute.navmesh().as_ref().unwrap().from();
+                                let to = autoroute.navmesh().as_ref().unwrap().to();
 
                                 {
                                     let mut shared_data = shared_data_arc_mutex.lock().unwrap();
-                                    shared_data.from = dbg!(Some(from_to.0));
+                                    shared_data.from = Some(from);
-                                    shared_data.to = dbg!(Some(from_to.1));
+                                    shared_data.to = Some(to);
-                                    shared_data.navmesh = Some(autoroute.navmesh().clone());
+                                    shared_data.navmesh = autoroute.navmesh().clone();
                                 }
 
-                                while let Some(()) = autoroute.next(
+                                while autoroute.next(
                                     &mut autorouter,
                                     &mut DebugRouterObserver {
                                         shared_data: shared_data_arc_mutex.clone(),
                                     },
                                 ) {
                                     shared_data_arc_mutex.lock().unwrap().navmesh =
-                                        Some(autoroute.navmesh().clone());
+                                        autoroute.navmesh().clone();
                                 }
                             }
                         });

src/router/router.rs

@@ -58,6 +58,22 @@ pub trait RouterObserverTrait<R: RulesTrait> {
     fn on_estimate(&mut self, tracer: &Tracer<R>, vertex: VertexIndex);
 }
 
+pub struct EmptyRouterObserver;
+
+impl<R: RulesTrait> RouterObserverTrait<R> for EmptyRouterObserver {
+    fn on_rework(&mut self, _tracer: &Tracer<R>, _trace: &Trace) {}
+    fn before_probe(&mut self, _tracer: &Tracer<R>, _trace: &Trace, _edge: NavmeshEdgeReference) {}
+    fn on_probe(
+        &mut self,
+        _tracer: &Tracer<R>,
+        _trace: &Trace,
+        _edge: NavmeshEdgeReference,
+        _result: Result<(), DrawException>,
+    ) {
+    }
+    fn on_estimate(&mut self, _tracer: &Tracer<R>, _vertex: VertexIndex) {}
+}
+
 pub struct Router<'a, R: RulesTrait> {
     layout: &'a mut Arc<Mutex<Layout<R>>>,
     navmesh: Navmesh,