Add interfaces to move components

topola/src/board/mod.rs

@@ -2,8 +2,10 @@
 //
 // SPDX-License-Identifier: MIT OR Apache-2.0
 
+mod resolve;
 mod select;
 pub mod selections;
+mod transforms;
 
 use bimap::BiBTreeMap;
 use derive_getters::{Dissolve, Getters};

topola/src/board/resolve.rs

@@ -0,0 +1,19 @@
+// SPDX-FileCopyrightText: 2026 Topola contributors
+//
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+use crate::{
+    board::{Board, selections::ComponentSelection},
+    compounds::ComponentId,
+};
+
+impl Board {
+    pub fn resolve_components(&self, selection: ComponentSelection) -> Vec<ComponentId> {
+        selection
+            .0
+            .clone()
+            .into_iter()
+            .filter_map(|selector| self.component_id(&selector.component))
+            .collect()
+    }
+}

topola/src/board/transforms/mod.rs

@@ -0,0 +1,5 @@
+// SPDX-FileCopyrightText: 2026 Topola contributors
+//
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+mod move_by;

topola/src/board/transforms/move_by.rs

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: 2026 Topola contributors
+//
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+use crate::{Board, Vector2, compounds::ComponentId, selections::ComponentSelection};
+
+impl Board {
+    pub fn move_components_by(
+        &mut self,
+        selection: &ComponentSelection,
+        translation: Vector2<i64>,
+    ) {
+        self.move_resolved_components_by(&self.resolve_components(selection.clone()), translation);
+    }
+
+    pub fn move_resolved_components_by(
+        &mut self,
+        selection: &[ComponentId],
+        translation: Vector2<i64>,
+    ) {
+        self.layout.move_components_by(selection, translation);
+    }
+}

topola/src/layout/mod.rs

@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: MIT OR Apache-2.0
 
 pub mod primitives;
+mod transforms;
 
 use derive_getters::Getters;
 use rstar::{
@@ -122,12 +123,12 @@ impl Layout {
         self.modify_joint_raw(id, |joint| f(&mut joint.spec));
         let new_joint = self.joints[id.index()].clone();
 
-        for &segment in &new_joint.segments {
-            self.update_segment(segment);
+        for &segment_id in &new_joint.segments {
+            self.update_segment(segment_id);
         }
 
-        for &via in &new_joint.vias {
-            self.update_via(via);
+        for &via_id in &new_joint.vias {
+            self.update_via(via_id);
         }
     }
 

topola/src/layout/transforms/mod.rs

@@ -0,0 +1,5 @@
+// SPDX-FileCopyrightText: 2026 Topola contributors
+//
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+mod move_by;

topola/src/layout/transforms/move_by.rs

@@ -0,0 +1,29 @@
+// SPDX-FileCopyrightText: 2026 Topola contributors
+//
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+use crate::{Layout, compounds::ComponentId, math::Vector2};
+
+impl Layout {
+    pub fn move_component_by(&mut self, id: ComponentId, translation: Vector2<i64>) {
+        self.move_components_by(&[id], translation);
+    }
+
+    pub fn move_components_by(&mut self, ids: &[ComponentId], translation: Vector2<i64>) {
+        for id in ids {
+            let component = self.components[id.index()].clone();
+
+            for &joint_id in &component.joints {
+                self.modify_joint_raw(joint_id, |joint| joint.spec.position += translation);
+            }
+
+            for &segment_id in &component.segments {
+                self.update_segment(segment_id);
+            }
+
+            for &via_id in &component.vias {
+                self.update_via(via_id);
+            }
+        }
+    }
+}