import { CSSProperties } from 'react';
import { CellVerticalAlign, ColumnDef, ColumnKey } from './types';
/**
 * **Column width and `DataListTable` layout**
 *
 * Helpers used by `DataListTable` to turn `ColumnDef` min/max/`widthPercent` and viewport options
 * into pixel widths and frame metrics. Consumers who pass custom layout-related props should read
 * this summary so behavior matches expectations.
 *
 * **Width resolution**
 * - `resolveColumnWidth` / `resolveColumnWidthForRender` — combine `minWidth`, `maxWidth`, and
 *   optional per-column caps (`maxWidthByColumnKey`). When responsive allocation supplies a map of
 *   pixel widths, fixed widths override min for layout.
 * - `normalizeColumnWidthPercents` — turns `widthPercent` into fractions summing to 100; if all
 *   missing/zero, columns split evenly.
 *
 * **Responsive path (`isResponsiveTable === true`)**
 * - `computeResponsiveColumnWidths` allocates integer pixel widths to data columns inside
 *   `dataAreaWidthPx`. It subtracts **total** inter-column gap `(n − 1) × interColumnGapPx` first
 *   (must match CSS `gap` between cells). Default `interColumnGapPx` is **0** (backward compatible).
 * - If usable width ≥ sum of mins: distribute **extra** space by normalized `widthPercent` weights,
 *   respecting `maxWidth` caps where applicable; last column absorbs rounding remainder.
 * - If usable width **≤** sum of mins (narrow viewport): columns **shrink proportionally** by
 *   `minWidth` ratios so the row does not rely on min-sum horizontal overflow (remainder goes to
 *   the last column when needed). Zero usable width yields zero widths.
 *
 * **Non-responsive path (`isResponsiveTable === false`)**
 * - No per-column pixel map; table uses intrinsic min widths + rail. `effectiveW` is
 *   `min(viewport, singleTableMinWidth)` unless `expandFrameWidthToViewport === true` **and**
 *   `viewportWidth >= singleTableMinWidth`, in which case the frame grows to full viewport width.
 *   Default `expandFrameWidthToViewport` is **false**.
 *
 * **`computeDataListTableLayout`**
 * - Single entry for viewport width + options: returns `effectiveW`, `centered`,
 *   `columnWidthPxByKey` (only when responsive and not in the “narrow + horizontal scroll” early
 *   exit), and `singleTableMinWidth`. When viewport is below `responsiveTableMinWidth` and horizontal
 *   scroll is allowed, it returns without computing responsive column widths (legacy scroll
 *   behavior).
 *
 * **Cell alignment helpers**
 * - `alignToJustify`, `cellVerticalAlignToFlexAlign`, `textAlignForCell` map column alignment enums
 *   to CSS for flex and text.
 */
export declare function resolveColumnWidth<T = unknown>(def: ColumnDef<T>, maxWidthByColumnKey?: Partial<Record<ColumnKey, number>>): {
    maxWidth: number | undefined;
    minWidth: number;
};
/** Normalizes `widthPercent` values to sum to 100; equal split when all zero or missing. */
export declare function normalizeColumnWidthPercents<T>(orderedColumns: ColumnDef<T>[]): number[];
/**
 * Allocates integer pixel widths for data columns: mins are respected, remaining space is split
 * by normalized percent weights. Used when `isResponsiveTable` is true.
 *
 * @param interColumnGapPx — Total horizontal gap is `(n - 1) * interColumnGapPx` subtracted from
 *   `dataAreaWidthPx` before allocation (e.g. flex `gap` between cells).
 */
export declare function computeResponsiveColumnWidths<T>(orderedColumns: ColumnDef<T>[], dataAreaWidthPx: number, maxWidthByColumnKey?: Partial<Record<ColumnKey, number>>, interColumnGapPx?: number): Map<ColumnKey, number>;
/**
 * Resolves layout width for a column: fixed px from `columnWidthPxByKey` when present (responsive),
 * otherwise legacy `minWidth` / caps.
 */
export declare function resolveColumnWidthForRender<T>(def: ColumnDef<T>, maxWidthByColumnKey: Partial<Record<ColumnKey, number>> | undefined, columnWidthPxByKey: Map<ColumnKey, number> | undefined): {
    maxWidth: number | undefined;
    minWidth: number;
};
export declare function sumOrderedMinWidths<T>(ordered: ColumnDef<T>[], maxWidthByColumnKey?: Partial<Record<ColumnKey, number>>): number;
export declare function computeDataListTableLayout<T>(viewportWidth: number, opts: {
    centerWhenNarrow: boolean;
    isResponsiveTable: boolean;
    orderedColumns: ColumnDef<T>[];
    railW: number;
    columnGapPx?: number;
    expandFrameWidthToViewport?: boolean;
    isHorizontalScroll?: boolean;
    maxWidthByColumnKey?: Partial<Record<ColumnKey, number>>;
    responsiveTableMaxWidth?: number;
    responsiveTableMinWidth?: number;
}): {
    centered: boolean;
    columnWidthPxByKey: Map<ColumnKey, number> | undefined;
    effectiveW: number;
    singleTableMinWidth: number;
};
export declare function alignToJustify(align: ColumnDef<unknown>["align"]): CSSProperties["justifyContent"];
export declare function cellVerticalAlignToFlexAlign(align: CellVerticalAlign | undefined): NonNullable<CSSProperties["alignItems"]>;
export declare function textAlignForCell(align: ColumnDef<unknown>["align"]): CSSProperties["textAlign"];