[MIRROR] Fixes painting [NO GBP] [MDB IGNORE] (#1077)

* Fixes painting [NO GBP] (#80233) --------- Co-authored-by: SkyratBot <[email protected]> Co-authored-by: Jeremiah <[email protected]>
Fluffy-Frontier · Dec 12, 2023 · 1209a65 · 1209a65
1 parent cbc9583
commit 1209a65
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/tgui/packages/tgui/interfaces/Canvas.tsx b/tgui/packages/tgui/interfaces/Canvas.tsx
@@ -123,8 +123,10 @@ class PaintCanvas extends Component<PaintCanvasProps> {
     const y_resolution = this.props.imageHeight || 36;
     const x_scale = Math.round(width / x_resolution);
     const y_scale = Math.round(height / y_resolution);
-    const x = Math.floor(event.offsetX / x_scale);
-    const y = Math.floor(event.offsetY / y_scale);
+
+    const rect = canvas.getBoundingClientRect();
+    const x = Math.floor((event.clientX - rect.left) / x_scale);
+    const y = Math.floor((event.clientY - rect.top) / y_scale);
     return { x, y };
   }