import { Widget } from '@lumino/widgets';
import { ISignal } from '@lumino/signaling';
export declare enum ItemState {
    CLOSED = 0,
    LOCKED = 1,
    UNLOCKED = 2
}
export declare class GridStackItemModel {
    constructor(options: GridStackItemModel.IOptions);
    get cellId(): string;
    get isLocked(): boolean;
    get stateChanged(): ISignal<this, ItemState>;
    dispose(): void;
    close(): void;
    lock(): void;
    unlock(): void;
    private _isLocked;
    private _cellId;
    private _stateChanged;
}
/**
 * A namespace for GridStackItem statics.
 */
export declare namespace GridStackItemModel {
    /**
     *  Options interface for GridStackItem
     */
    interface IOptions {
        /**
         * The cell Id.
         */
        cellId: string;
        /**
         * The cell widget.
         */
        cellWidget: Widget;
        /**
         * If the cell is pinned or not.
         */
        isLocked: boolean;
    }
}