import type { Selection } from "./interact.js";
import type { Sheet as WireSheet } from "./schema/Sheet.js";
import type { Sheet, WorkbookLayout } from "./types.js";
export declare const VIRTUAL_EXTRA_COLS = 50;
export declare const VIRTUAL_EXTRA_ROWS = 1000;
export interface VirtualSizeState {
    colOverrides: Map<number, number>;
    rowOverrides: Map<number, number>;
}
export declare function virtualSize(sheet: Sheet, state: VirtualSizeState): {
    w: number;
    h: number;
};
export declare function normalizeSelection(selection: Selection, maxRow: number, maxCol: number): Selection;
export declare function makeButton(label: string): HTMLButtonElement;
export declare function makeTab(label: string, sheet: WireSheet, layout: WorkbookLayout): HTMLButtonElement;
export declare function contrastingTextColor(css: string): string;