import { ElementRef } from '@angular/core';
import type { ExportFormat } from '../shared/chart-export-menu.component';
import { fmtNum } from '../shared/chart-utils';
import * as i0 from "@angular/core";
export interface RadialBarItem {
    label: string;
    value: number;
    max: number;
    color?: string;
}
export declare class RadialBarChartComponent {
    private readonly exportSvc;
    readonly instanceId: string;
    data: import("@angular/core").InputSignal<RadialBarItem[]>;
    height: import("@angular/core").InputSignal<number>;
    showLegend: import("@angular/core").InputSignal<boolean>;
    strokeWidth: import("@angular/core").InputSignal<number>;
    ringGap: import("@angular/core").InputSignal<number>;
    colors: import("@angular/core").InputSignal<string[]>;
    showExport: import("@angular/core").InputSignal<boolean>;
    hoveredIndex: import("@angular/core").WritableSignal<number | null>;
    tooltip: import("@angular/core").WritableSignal<any>;
    tooltipX: import("@angular/core").WritableSignal<number>;
    tooltipY: import("@angular/core").WritableSignal<number>;
    animateState: import("@angular/core").WritableSignal<boolean>;
    svgEl: import("@angular/core").Signal<ElementRef<SVGElement> | undefined>;
    size: import("@angular/core").Signal<number>;
    center: import("@angular/core").Signal<number>;
    constructor();
    computedRings: import("@angular/core").Signal<{
        r: number;
        pct: number;
        color: string;
        dashArray: string;
        circumference: number;
        label: string;
        value: number;
        max: number;
        raw: RadialBarItem;
    }[]>;
    avgPct: import("@angular/core").Signal<number>;
    onRingHover(item: RadialBarItem, index: number): void;
    onRingMouseMove(event: MouseEvent): void;
    onMouseLeave(): void;
    onExport(type: ExportFormat): void;
    exportToJson(): void;
    exportToCsv(): void;
    exportToSvg(): void;
    exportToPdf(): void;
    readonly fmtNum: typeof fmtNum;
    static ɵfac: i0.ɵɵFactoryDeclaration<RadialBarChartComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<RadialBarChartComponent, "ngx-radial-bar-chart", never, { "data": { "alias": "data"; "required": false; "isSignal": true; }; "height": { "alias": "height"; "required": false; "isSignal": true; }; "showLegend": { "alias": "showLegend"; "required": false; "isSignal": true; }; "strokeWidth": { "alias": "strokeWidth"; "required": false; "isSignal": true; }; "ringGap": { "alias": "ringGap"; "required": false; "isSignal": true; }; "colors": { "alias": "colors"; "required": false; "isSignal": true; }; "showExport": { "alias": "showExport"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}