@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(grid, rect) {
    const s = grid.state.columnMeta.get();
    const ds = grid.state.rowDataStore;
    const rowTopCount = ds.rowTopCount.get();
    const adjustedRect = adjustRectForRowAndCellSpan(grid, rect);
    const rects = splitCellSelectionRect({
        rect: boundSelectionRect(grid, adjustedRect),
        colCenterCount: s.columnVisibleCenterCount,
        colStartCount: s.columnVisibleStartCount,
        rowCenterCount: ds.rowCenterCount.get(),
        rowTopCount: rowTopCount,
    });
    const current = grid.internal.cellSelectionAdditiveRects.get();
    if (current && current.length === rects.length) {
        if (current.every((c, i) => areRectsEqual(c, rects[i])))
            return;
    }
    grid.internal.cellSelectionAdditiveRects.set(rects);
}