import { Observable } from 'rxjs';
import { Context } from '../context/Context';
import { SpineItemLocator } from '../spineItem/locationResolver';
import { SpineItem } from '../spineItem/SpineItem';
import { SpineItemPageLayout } from '../spineItem/types';
import { ReactiveEntity } from '../utils/ReactiveEntity';
import { Viewport } from '../viewport/Viewport';
import { SpineLocator } from './locator/SpineLocator';
import { SpineItemsManager } from './SpineItemsManager';
import { SpineLayout } from './SpineLayout';
import { SpineItemPageSpineLayout, SpinePosition } from './types';
export declare const spinePositionToSpineItemSpineLayout: ({ position, pageSize, }: {
    position: SpinePosition;
    pageSize: {
        height: number;
        width: number;
    };
}) => SpineItemPageSpineLayout;
export type PageEntry = {
    absoluteLayout: SpineItemPageSpineLayout;
    layout: SpineItemPageLayout;
    itemIndex: number;
    absolutePageIndex: number;
    pageIndex: number;
    firstVisibleNode: {
        node: Node;
        offset: number;
    } | undefined;
};
export type PagesState = {
    pages: PageEntry[];
};
export declare class Pages extends ReactiveEntity<PagesState> {
    readonly spineLayout: SpineLayout;
    readonly spineItemsManager: SpineItemsManager;
    readonly spineItemLocator: SpineItemLocator;
    readonly context: Context;
    readonly locator: SpineLocator;
    readonly viewport: Viewport;
    readonly layout$: Observable<PagesState>;
    constructor(spineLayout: SpineLayout, spineItemsManager: SpineItemsManager, spineItemLocator: SpineItemLocator, context: Context, locator: SpineLocator, viewport: Viewport);
    static fromSpineItemPageIndex: (pagesState: PagesState, spineItem: SpineItem | number, pageIndex: number) => PageEntry | undefined;
    static fromNextPageWithinSameSpineItem: (pagesState: PagesState, pageEntry: PageEntry) => PageEntry | undefined;
    static fromAbsolutePageIndex: (pagesState: PagesState, absolutePageIndex: number) => PageEntry | undefined;
    fromSpineItemPageIndex: (spineItem: SpineItem | number, pageIndex: number) => PageEntry | undefined;
    fromNextPageWithinSameSpineItem: (pageEntry: PageEntry) => PageEntry | undefined;
    fromAbsolutePageIndex: (absolutePageIndex: number) => PageEntry | undefined;
    observeFromAbsolutePageIndex: (absolutePageIndex: number) => Observable<PageEntry | undefined>;
}