/**
 * THE READING GRID'S PACKING — the pure half of `ReadingGrid`: rows of four units filled in author order, the
 * last cell of each row stretched to its end, and figures sharing a row — or a band — joined into one strip.
 */
/** Units a desk row holds. */
export declare const ROW_UNITS = 4;
/** The widest grid (`reading_grid.css`) that draws every card the row's width. */
export declare const PHONE_GRID = 720;
/**
 * The units a card whose picture needs `ink` px takes in a grid `width` wide: its own `span`, else as many
 * as seat the picture whole — never a row's more. A phone's grid gives every card the row anyway.
 */
export declare function inkedSpan(span: number, ink: number, width: number): number;
/** What one reading asks of a row, in units, and whether it is a bare figure. */
export interface PackedInput {
    span: number;
    figure: boolean;
}
/** One box of a row: a card, or a strip of the figures that share the row, with the units it spans. */
export interface PackedCell {
    /** The inputs it draws, in order — one for a card, one or more for a strip. */
    members: readonly number[];
    figure: boolean;
    span: number;
}
/**
 * Rows in author order: an input that does not fit what is left of the row opens the next one, a figure
 * beside a figure joins its strip, and the last cell of every row takes the units left — so each row is
 * full and a lone card is the row's width. A span past a row is a row.
 */
export declare function packReadingGrid(inputs: readonly PackedInput[]): PackedCell[][];
/**
 * The band's one line, in author order: every figure stands in ONE strip, where the first of them stands, and
 * every card keeps the units it asks — the line's width is shared in their proportion, never wrapped onto a
 * second line.
 */
export declare function packReadingBand(inputs: readonly PackedInput[]): PackedCell[];