import { ElementRef } from '@angular/core';
import { fmtNum } from '../shared/chart-utils';
import * as i0 from "@angular/core";
export interface TreeGraphNode {
    id: string;
    label: string;
    parentId?: string;
    value?: number;
    color?: string;
}
interface ProcessedNode {
    id: string;
    label: string;
    parentId?: string;
    value: number;
    depth: number;
    x: number;
    y: number;
    color: string;
    children: ProcessedNode[];
}
interface TreeLink {
    parentId: string;
    childId: string;
    path: string;
}
export declare class TreeGraphComponent {
    data: import("@angular/core").InputSignal<TreeGraphNode[]>;
    height: import("@angular/core").InputSignal<number>;
    width: import("@angular/core").InputSignal<number>;
    colors: import("@angular/core").InputSignal<string[]>;
    showLabels: import("@angular/core").InputSignal<boolean>;
    showExport: import("@angular/core").InputSignal<boolean>;
    svgEl: import("@angular/core").Signal<ElementRef<SVGElement> | undefined>;
    exportMenuOpen: import("@angular/core").WritableSignal<boolean>;
    hoveredNodeId: import("@angular/core").WritableSignal<string | null>;
    tooltip: import("@angular/core").WritableSignal<any>;
    computedTree: import("@angular/core").Signal<{
        nodes: ProcessedNode[];
        root: ProcessedNode | null;
    }>;
    computedNodes: import("@angular/core").Signal<ProcessedNode[]>;
    computedLinks: import("@angular/core").Signal<TreeLink[]>;
    onNodeHover(event: MouseEvent, node: ProcessedNode): void;
    toggleExportMenu(event: MouseEvent): void;
    closeExportMenu(): void;
    onExport(type: 'json' | 'csv' | 'svg' | 'pdf'): void;
    exportToCsv(): void;
    exportToJson(): void;
    exportToSvg(): void;
    exportToPdf(): void;
    readonly fmtNum: typeof fmtNum;
    static ɵfac: i0.ɵɵFactoryDeclaration<TreeGraphComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TreeGraphComponent, "ngx-treegraph", never, { "data": { "alias": "data"; "required": false; "isSignal": true; }; "height": { "alias": "height"; "required": false; "isSignal": true; }; "width": { "alias": "width"; "required": false; "isSignal": true; }; "colors": { "alias": "colors"; "required": false; "isSignal": true; }; "showLabels": { "alias": "showLabels"; "required": false; "isSignal": true; }; "showExport": { "alias": "showExport"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}
export {};