Add Arrowheads to Arrows (#2452)

Co-authored-by: dwelle <luzar.david@gmail.com>
Co-authored-by: Lipis <lipiridis@gmail.com>

src/scene/comparisons.ts

@@ -28,6 +28,8 @@ export const canChangeSharpness = (type: string) =>
 
 export const hasText = (type: string) => type === "text";
 
+export const canHaveArrowheads = (type: string) => type === "arrow";
+
 export const getElementAtPosition = (
   elements: readonly NonDeletedExcalidrawElement[],
   isAtPositionFn: (element: NonDeletedExcalidrawElement) => boolean,

src/scene/index.ts

@@ -10,6 +10,7 @@ export { normalizeScroll, calculateScrollCenter } from "./scroll";
 export {
   hasBackground,
   hasStroke,
+  canHaveArrowheads,
   canChangeSharpness,
   getElementAtPosition,
   getElementContainingPosition,