import type { Tiles } from "./Tiles";
import { BaseLayout } from "./BaseLayout";
/**
 * Layout.
 */
export declare abstract class Layout {
    /**
     * Tiles back-reference.
     */
    readonly $: Tiles;
    /**
     * Ordered groups.
     */
    readonly groups: LayoutGroup[];
    /**
     * Constructor.
     */
    constructor($: Tiles);
    /**
     * Rearranges group tiles.
     */
    abstract rearrange(): void;
    /**
     * Snaps location to grid.
     */
    abstract snapToGrid(tile: HTMLButtonElement): null | GridSnapResult;
}
/**
 * Grid snap result.
 */
export type GridSnapResult = {
    /**
     * Group ID.
     *
     * If none, requests an anonymous group.
     */
    group?: string;
    /**
     * X coordinate in small tiles.
     */
    x: number;
    /**
     * Y coordinate in small tiles.
     */
    y: number;
};
/**
 * Group.
 */
export declare class LayoutGroup {
    $: Layout;
    id: string;
    div: null | HTMLDivElement;
    /**
     * Unordered tiles.
     * @hidden
     */
    readonly _tiles: Map<string, LayoutTile>;
    /**
     * A structure with fine-grained control over tiles.
     * @hidden
     */
    _layout: BaseLayout;
    /**
     * Constructor.
     */
    constructor($: Layout, id: string, div: null | HTMLDivElement, width: undefined | number, height: undefined | number);
    /**
     * Returns an immutable unordered list of the contained tiles.
     */
    getTiles(): LayoutTile[];
    /**
     * Returns a specific tile.
     */
    getTile(id: string): null | LayoutTile;
    /**
     * Returns whether a tile exists in this group.
     */
    hasTile(id: string): boolean;
    /**
     * Returns whether the group is empty or not.
     */
    isEmpty(): boolean;
    /**
     * Layout size in small tiles unit (1x1).
     */
    getLayoutSize(): {
        width: number;
        height: number;
    };
    /**
     * Rearranges group tiles and resizes the group's tiles div.
     */
    rearrange(): void;
}
/**
 * Tile.
 */
export declare class LayoutTile {
    readonly id: string;
    button: null | HTMLButtonElement;
    /**
     * Cached tween.
     */
    tween: null | gsap.core.Tween;
    /**
     * Cached indicator for initial position.
     */
    positioned: boolean;
    /**
     * Parent layout group.
     */
    $: null | LayoutGroup;
    /**
     * Cosntructor.
     * @param button If `null` indicates this is a placeholder tile.
     */
    constructor(id: string, button: null | HTMLButtonElement);
    /**
     * Attempts to contributes the tile to the layout.
     * If `x` and `y` are both given as `null`, then the
     * method is guaranteed to always succeed, contributing
     * the tile to the best last position.
     */
    addTo($: LayoutGroup, x: null | number, y: null | number, width: number, height: number): boolean;
    /**
     * Removes the tile from the parent `LayoutGroup`.
     * This method does not, however, remove the tile
     * from the overall state.
     */
    remove(): void;
    /**
     * X coordinate in small tiles.
     */
    get x(): number;
    /**
     * Y coordinate in small tiles.
     */
    get y(): number;
    /**
     * Width in small tiles.
     */
    get width(): number;
    /**
     * Height in small tiles.
     */
    get height(): number;
    /**
     * Moves position.
     */
    move(x: number, y: number): boolean;
    /**
     * Resizes tile.
     */
    resize(width: number, height: number): boolean;
}