Function useDrawRectangleTool

hooks/DrawRectangleTool.ts:13–101

()

import { getPointerPositionRelativeToStage } from "./getPointerPosition";

export function useDrawRectangleTool() {
  const tool = useStateStore((state) => state.selectedTool);
  const properties = useToolPropertiesStore(
    (s) => s.properties.rectangle ?? defaultRectangleProperties
  );

  const rectangles = useHistoryStore((state) => state.current.rectangles);
  const addRectangle = useHistoryStore((state) => state.addRectangle);
  const updateRectangleInStore = useHistoryStore(
    (state) => state.updateRectangle
  );
  const saveToHistory = useHistoryStore((state) => state.saveToHistory);

  const isDrawing = useRef(false);
  const currentDraw = useRef<{
    id: string;
    startX: number;
    startY: number;
  } | null>(null);

  const handlePointerDown = (e: KonvaEventObject<MouseEvent | TouchEvent>) => {
    if (tool !== "rectangle") return;

    // Save current state before starting new drawing
    saveToHistory();

    isDrawing.current = true;

    const stage = e.target.getStage();
    const pos = stage ? getPointerPositionRelativeToStage(stage) : null;
    if (!pos) return;

    const id = createShapeId();
    currentDraw.current = { id, startX: pos.x, startY: pos.y };

    addRectangle({
      id,
      x: pos.x,
      y: pos.y,
      width: 0,
      height: 0,
      stroke: properties.stroke,
      fill: properties.fill,
      strokeWidth: properties.strokeWidth,
      cornerRadius: properties.cornerRadius,
      opacity: properties.opacity,
    });
  };

  const handlePointerMove = (e: KonvaEventObject<MouseEvent | TouchEvent>) => {
    if (!isDrawing.current || tool !== "rectangle") return;

    const stage = e.target.getStage();
    const pos = stage ? getPointerPositionRelativeToStage(stage) : null;
    if (!pos) return;

    const current = currentDraw.current;
    if (!current) return;