import { ElementRef, NgZone } from '@angular/core';
/**
 * The ink bar is used to display and animate the line underneath the current active tab label
 *
 * NOTE: Only used internally
 */
export declare class TsTabInkBarComponent {
    private elementRef;
    private ngZone;
    constructor(elementRef: ElementRef<HTMLElement>, ngZone: NgZone);
    /**
     * Calculate the styles from the provided element in order to align the ink-bar to that element.
     * Shows the ink bar if previously set as hidden.
     *
     * @param element
     */
    alignToElement(element: HTMLElement): void;
    /**
     * Sets the proper styles to the ink bar element.
     *
     * @param element - The element to align the ink bar to
     */
    private setStyles;
    /**
     * Return an object representing the correct ink bar positions
     *
     * @param element - The element to align the ink bar to
     * @returns The object of positions
     */
    private determineInkBarPositions;
}