/**
 * Import Angular libraries.
 */
import { AfterViewChecked, EventEmitter, OnDestroy, OnChanges, SimpleChanges, ElementRef } from '@angular/core';
/**
 * Import third-party libraries.
 */
import { Polyline, PointArrayAlias } from '@svgdotjs/svg.js';
/**
 * Import custom components.
 */
import { SvgContainerComponent } from '../components/svg-container/svg-container.component';
export declare class SvgPolylineDirective implements AfterViewChecked, OnChanges, OnDestroy {
    private _svgContainer;
    private _elRef;
    /**
     * Globally used variables within the directive.
     */
    private _polyline;
    /**
     * Input variables for the polyline directive.
     */
    points: PointArrayAlias;
    borderSize: number;
    borderColor: string;
    fill: string;
    classes: string[];
    /**
     * Output variables for the polyline directive.
     */
    clickEvent: EventEmitter<MouseEvent>;
    doubleClickEvent: EventEmitter<MouseEvent>;
    mouseOverEvent: EventEmitter<MouseEvent>;
    mouseOutEvent: EventEmitter<MouseEvent>;
    onInitialize: EventEmitter<Polyline>;
    /**
     * Create SVG Polyline directive.
     * @param _svgContainer - Host SVG Container Component object instance.
     * @param _elRef - Angular element reference object instance.
     */
    constructor(_svgContainer: SvgContainerComponent, _elRef: ElementRef);
    /**
     * Creates or updates the polyline object within the container.
     */
    ngAfterViewChecked(): void;
    /**
     * Does all required pre-requisites before destroying the component.
     */
    ngOnDestroy(): void;
    /**
     * Is called when changes are made to the polyline object.
     * @param changes - Angular Simple Changes object containing all of the changes.
     */
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * Update polyline object within the SVG container.
     */
    private updatePolyline;
    /**
     * Create polyline object within the SVG container.
     */
    private createPolyline;
    /**
     * Sets correct position for the element.
     */
    private setCorrectPosition;
    /**
     * Adds classes to the polyline object.
     * @param classesToAdd - List of classes, which needs to be added.
     * @param classesToRemove - List of classes, which needs to be removed.
     */
    private addRemoveClasses;
}