From ca7edbcc6b201df7b5070cde205e66f576948475 Mon Sep 17 00:00:00 2001
From: Josh Kingsley <josh@joshkingsley.me>
Date: Sun, 26 Oct 2025 21:04:24 +0200
Subject: feat(web): add subdivideSelection method

---
 web/src/selection.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'web/src/selection.ts')

diff --git a/web/src/selection.ts b/web/src/selection.ts
index 294db52..abaf8b5 100644
--- a/web/src/selection.ts
+++ b/web/src/selection.ts
@@ -17,6 +17,9 @@ export abstract class Selection {
   abstract extend(cellRef: CellRef): Selection;
 
   abstract getSelectedCells(grid: RenderedGrid): RenderedCell[][];
+
+  abstract startCellRef(): CellRef;
+  abstract endCellRef(): CellRef;
 }
 
 export class ActiveCellSelection extends Selection {
@@ -34,6 +37,14 @@ export class ActiveCellSelection extends Selection {
   getSelectedCells(grid: RenderedGrid): RenderedCell[][] {
     return [[getRenderedCell(grid, this.activeCellRef)!]];
   }
+
+  startCellRef(): CellRef {
+    return this.activeCellRef;
+  }
+
+  endCellRef(): CellRef {
+    return this.activeCellRef;
+  }
 }
 
 export type CellRange = [CellRef, CellRef];
@@ -101,4 +112,12 @@ export class RangeSelection extends Selection {
         return row.renderedCells.slice(firstCellIndex, lastCellIndex + 1);
       });
   }
+
+  startCellRef(): CellRef {
+    return this.range[0];
+  }
+
+  endCellRef(): CellRef {
+    return this.range[1];
+  }
 }
-- 
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