Make nets keep track of pins they contain

topola/src/board/interactors/drag_move.rs

@@ -16,16 +16,16 @@ pub struct DragMoveInteractor {
 }
 
 impl DragMoveInteractor {
-    pub fn abort(&mut self, board: &mut Board) {
-        board.discard_delta();
-    }
-
     pub fn hold(&mut self, board: &mut Board, pointer: Vector2<i64>) {
         board.discard_delta();
 
         board.move_components_by(self.selection.clone(), pointer - self.origin);
     }
 
+    pub fn abort(&mut self, board: &mut Board) {
+        board.discard_delta();
+    }
+
     pub fn release(&mut self, board: &mut Board, pointer: Vector2<i64>) {
         self.hold(board, pointer);
     }

topola/src/board/interactors/drag_select.rs

@@ -47,10 +47,6 @@ impl DragSelectInteractor {
         }
     }
 
-    pub fn abort(&mut self) {
-        self.selection = self.original_selection.clone();
-    }
-
     pub fn hold(&mut self, board: &Board, pointer: Vector2<i64>) {
         self.selection = PersistableSelection::new();
 
@@ -184,4 +180,8 @@ impl DragSelectInteractor {
 
         self.selection = combined_selection;
     }
+
+    pub fn abort(&mut self) {
+        self.selection = self.original_selection.clone();
+    }
 }

topola/src/board/mod.rs

@@ -79,12 +79,12 @@ impl Board {
         component_id
     }
 
-    pub fn ensure_named_pin(&mut self, pin_name: String) -> PinId {
+    pub fn ensure_named_pin(&mut self, pin_name: String, net_id: Option<NetId>) -> PinId {
         if let Some(pin) = self.pin_names.get_by_right(&pin_name) {
             return *pin;
         };
 
-        let pin_id = self.layout.insert_pin();
+        let pin_id = self.layout.insert_pin(net_id);
         self.pin_names.insert(pin_id, pin_name);
 
         pin_id

topola/src/layout/compounds/net.rs

@@ -5,6 +5,8 @@
 use derive_more::{Constructor, From};
 use serde::{Deserialize, Serialize};
 
+use crate::PinId;
+
 #[derive(
     Clone,
     Constructor,
@@ -27,3 +29,14 @@ impl NetId {
         self.0
     }
 }
+
+#[derive(Clone, Debug, Default)]
+pub struct Net {
+    pub pins: Vec<PinId>,
+}
+
+impl Net {
+    pub fn new() -> Self {
+        Default::default()
+    }
+}

topola/src/layout/compounds/pin.rs

@@ -30,7 +30,7 @@ impl PinId {
     }
 }
 
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Default)]
 pub struct Pin {
     pub joints: Vec<JointId>,
     pub segments: Vec<SegmentId>,
@@ -40,11 +40,6 @@ pub struct Pin {
 
 impl Pin {
     pub fn new() -> Self {
-        Self {
-            joints: Vec::new(),
-            segments: Vec::new(),
-            vias: Vec::new(),
-            polygons: Vec::new(),
-        }
+        Default::default()
     }
 }

topola/src/layout/insert.rs

@@ -8,7 +8,7 @@ use crate::{
     Pin, PinId,
     layout::{
         Layout,
-        compounds::{Component, ComponentId},
+        compounds::{Component, ComponentId, NetId},
     },
     primitives::{
         Joint, JointId, JointSpec, Polygon, PolygonId, Segment, SegmentId, SegmentSpec, Via, ViaId,
@@ -21,8 +21,15 @@ impl Layout {
         ComponentId::new(self.components.push(Component::new()))
     }
 
-    pub fn insert_pin(&mut self) -> PinId {
-        PinId::new(self.pins.push(Pin::new()))
+    pub fn insert_pin(&mut self, net_id: Option<NetId>) -> PinId {
+        let pin_id = PinId::new(self.pins.push(Pin::new()));
+
+        if let Some(net_id) = net_id {
+            self.nets
+                .modify(net_id.index(), |net| net.pins.push(pin_id));
+        }
+
+        pin_id
     }
 
     pub fn insert_joint(&mut self, spec: JointSpec) -> JointId {

topola/src/layout/mod.rs

@@ -26,7 +26,7 @@ use undoredo::aliases::RTreeHalfDelta;
 use undoredo::{Delta, Recorder};
 
 use crate::layout::{
-    compounds::{Component, ComponentId, Pin, PinId},
+    compounds::{Component, ComponentId, Net, Pin, PinId},
     primitives::{Joint, JointId, Polygon, PolygonId, Segment, SegmentId, Via, ViaId},
 };
 
@@ -63,6 +63,7 @@ pub struct Layout {
     layer_count: usize,
 
     components: Recorder<StableVec<Component>>,
+    nets: Recorder<StableVec<Net>>,
     pins: Recorder<StableVec<Pin>>,
 
     joints: Recorder<StableVec<Joint>>,
@@ -96,6 +97,7 @@ impl Layout {
             layer_count,
 
             components: Recorder::new(StableVec::new()),
+            nets: Recorder::new(StableVec::new()),
             pins: Recorder::new(StableVec::new()),
 
             joints: Recorder::new(StableVec::new()),

topola/src/specctra.rs

@@ -159,9 +159,9 @@ impl Board {
 
                 for pin in &image.pins {
                     let pin_name = format!("{}-{}", place.name, pin.id);
-                    let net = pin_nets.get(&pin_name).copied();
+                    let net_id = pin_nets.get(&pin_name).copied();
 
-                    let pin_id = board.ensure_named_pin(pin_name.clone());
+                    let pin_id = board.ensure_named_pin(pin_name.clone(), net_id);
                     let padstack = dsn.pcb.library.find_padstack_by_name(&pin.name).unwrap();
 
                     for shape in padstack.shapes.iter() {
@@ -174,7 +174,7 @@ impl Board {
                                     pin.point_with_rotation(),
                                     circle.diameter / 2.0,
                                     layer,
-                                    net,
+                                    net_id,
                                     Some(component_id),
                                     Some(pin_id),
                                     !place_side_is_front,
@@ -192,7 +192,7 @@ impl Board {
                                     rect.x2,
                                     rect.y2,
                                     layer,
-                                    net,
+                                    net_id,
                                     Some(component_id),
                                     Some(pin_id),
                                     !place_side_is_front,
@@ -208,7 +208,7 @@ impl Board {
                                     &path.coords,
                                     path.width,
                                     layer,
-                                    net,
+                                    net_id,
                                     Some(component_id),
                                     Some(pin_id),
                                     !place_side_is_front,
@@ -224,7 +224,7 @@ impl Board {
                                     &polygon.coords,
                                     polygon.width,
                                     layer,
-                                    net,
+                                    net_id,
                                     Some(component_id),
                                     Some(pin_id),
                                     !place_side_is_front,