@1771technologies/lytenyte-pro/dist/cell-selection/update-additive-cell-selection.js

Blazingly fast headless React data grid with 100s of features.

import { boundSelectionRect } from "./bound-selection-rect.js";
import { adjustRectForRowAndCellSpan } from "./adjust-rect-for-row-and-cell-span.js";
import { areRectsEqual } from "./are-rects-equal.js";
import { splitCellSelectionRect } from "./split-cell-selection-rect.js";
export function updateAdditiveCellSelection(api, view, rowTopCount, rowCount, rowBottomCount, rect, cellSelectionAdditiveRects, setSelectionAdditiveRects) {
    const s = view;
    const adjustedRect = adjustRectForRowAndCellSpan(api.cellRoot, rect);
    const rects = splitCellSelectionRect({
        rect: boundSelectionRect(view, rowCount, adjustedRect),
        colCenterCount: s.centerCount,
        colStartCount: s.startCount,
        rowCenterCount: rowCount - rowTopCount - rowBottomCount,
        rowTopCount: rowTopCount,
    });
    const current = cellSelectionAdditiveRects;
    if (current && current.length === rects.length) {
        if (current.every((c, i) => areRectsEqual(c, rects[i])))
            return;
    }
    setSelectionAdditiveRects(rects);
}