@1771technologies/lytenyte-pro/dist/cell-selection/bound-selection-rect.js

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

import { clamp } from "@1771technologies/lytenyte-shared";
export function boundSelectionRect(view, rowCount, rect) {
    const maxRow = rowCount;
    const minRow = 0;
    const maxColumn = view.visibleColumns.length;
    const minColumn = 0;
    const rowStartMaybe = clamp(minRow, rect.rowStart, maxRow);
    const rowEndMaybe = clamp(minRow, rect.rowEnd, maxRow);
    const colStartMaybe = clamp(minColumn, rect.columnStart, maxColumn);
    const colEndMaybe = clamp(minColumn, rect.columnEnd, maxColumn);
    const rowStart = Math.min(rowStartMaybe, rowEndMaybe);
    const rowEnd = Math.max(rowStartMaybe, rowEndMaybe);
    const columnStart = Math.min(colStartMaybe, colEndMaybe);
    const columnEnd = Math.max(colStartMaybe, colEndMaybe);
    return { rowStart, rowEnd, columnStart, columnEnd };
}