import { AfterViewInit, ElementRef, OnInit } from '@angular/core';
import { Subject } from 'rxjs/internal/Subject';
import { IPieChartData } from '../../../models/IPieChartData';
import { PieDataService } from '../../../services/chart/pie-data.service';
export declare class PieDouChartComponent implements AfterViewInit, OnInit {
    private dataservice;
    element: ElementRef;
    /**
     * Data to display use the PieData interface
     * Format: {label: string, value: number, percentage: number}
     * @internal
     */
    pieData: IPieChartData[];
    /**
     * New data to add to the Pie Chart
     * Format: {label: string, value: number, percentage: number}
     * @internal
     */
    newData: Subject<IPieChartData[]>;
    /**
     * Subject to toggle betweent pie chart style
     * Default value: false
     * @internal
     */
    doughnutSubject: Subject<boolean>;
    /**
     * Defines the color scheme for the pie chart
     * Default value: random colors
     * @internal
     */
    colors: any[];
    /**
     * Subject to toggle inside percentages style
     * Default value: false
     * @internal
     */
    insideLabelsSubject: Subject<boolean>;
    /**
    * Defines the initial style of the labels
    * Default value: false
    * @internal
    */
    insideLabels: boolean;
    /**
    * Defines the initial style of the pie chart
    * Default value: false
    * @internal
    */
    isDoughnut: boolean;
    private host;
    private svg;
    private width;
    private height;
    private radius;
    private htmlElement;
    private totalData;
    private customColors;
    constructor(dataservice: PieDataService);
    ngAfterViewInit(): void;
    ngOnInit(): void;
    private setTotalData;
    private setPercentages;
    private getColors;
    random_hex_color_code: () => string;
    private setup;
    private buildSVG;
    private buildPie;
    private populatePie;
}