/**
 * Manages the selection of records.
 */
export default class Selection {
    private readonly onSelect;
    private readonly onUnselect;
    /**
       * The range of selected records.
       */
    private range;
    /**
       * The actual selected records.
       */
    private records;
    constructor(onSelect?: (index: number) => void, onUnselect?: (index: number) => void);
    /**
       * Marks the record as selected.
       * @param index The index of the record.
       */
    select(index: number): void;
    /**
       * Un-marks the record as selected.
       * @param index The index of the record.
       */
    unselect(index: number): void;
    /**
       * Resets the selection to an empty state.
       *
       * This will unselect all records and reset the range.
       */
    reset(): void;
    /**
       * Resets the range of selected records, by unselecting all records in the range
       * and selecting the first one.
       */
    reopenRange(): void;
    /**
       * Returns true if the record is selected.
       * @param index The index of the record.
       * @returns boolean
       */
    has(index: number): boolean;
    /**
       * Returns all selected records.
       * @returns number[] The selected records.
       */
    getAll(): number[];
    /**
       * Returns true if no records are selected.
       * @returns boolean
       */
    isEmpty(): boolean;
    /**
       * Returns true if a range is selected and is closed.
       * @returns boolean
       */
    hasRange(): boolean;
    /**
       * Closes the range selection.
       * @param to The index of the record to close the range.
       */
    closeRange(to: number): void;
    /**
       * Returns true if a range is initiated but not closed.
       */
    hasOpenRange(): boolean;
}