import { SimpleChanges, OnChanges } from '@angular/core';
import { RingSemiSectionItem, RingSectionItem } from './ring-chart.model';
import { RingChartService } from './ring-chart.service';
export declare class RingChartComponent implements OnChanges {
    private readonly ringChartSrv;
    sections: Array<RingSectionItem>;
    diameter: number;
    thickness: number;
    centerColor: string;
    centerSize$$: number;
    centerColor$$: string;
    centerZindex$$: number;
    leftSections$$: RingSemiSectionItem[];
    rightSections$$: RingSemiSectionItem[];
    constructor(ringChartSrv: RingChartService);
    ngOnChanges(changes: SimpleChanges): void;
    getStyles$$(section: RingSemiSectionItem, borderSide: string): {
        [x: string]: string | number;
        'border-color': string;
        'border-width.px': number;
        'z-index': number;
        transform: string;
    };
    private calculateSections;
    private validateAndUpdateThickness;
    private validateSections;
    private calculateCenter;
}