import { ElementRef } from '@angular/core';
import type { ExportFormat } from '../shared/chart-export-menu.component';
import * as i0 from "@angular/core";
export declare class HeatmapChartComponent {
    private readonly exportSvc;
    data: import("@angular/core").InputSignal<number[][]>;
    xAxisLabels: import("@angular/core").InputSignal<string[]>;
    yAxisLabels: import("@angular/core").InputSignal<string[]>;
    colorRange: import("@angular/core").InputSignal<string[]>;
    showExport: import("@angular/core").InputSignal<boolean>;
    cellClick: import("@angular/core").OutputEmitterRef<{
        row: number;
        col: number;
        value: number;
    }>;
    leftOffset: number;
    topOffset: number;
    cellSpacing: number;
    tooltip: import("@angular/core").WritableSignal<{
        show: boolean;
        title: string;
        value: string;
        x: number;
        y: number;
        rawVal: number;
    }>;
    svgEl: import("@angular/core").Signal<ElementRef<SVGElement> | undefined>;
    cellWidth: import("@angular/core").Signal<number>;
    cellHeight: import("@angular/core").Signal<number>;
    viewBoxString: import("@angular/core").Signal<string>;
    getColX(colIdx: number): number;
    getRowY(rowIdx: number): number;
    getCellColor(val: number): string;
    private interpolateColor;
    onCellEnter(rIdx: number, cIdx: number, val: number, event: MouseEvent): void;
    onCellLeave(): void;
    onCellClick(rIdx: number, cIdx: number, val: number): void;
    onExport(type: ExportFormat): void;
    exportToJson(): void;
    exportToCsv(): void;
    exportToSvg(): void;
    exportToPdf(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<HeatmapChartComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<HeatmapChartComponent, "ngx-heatmap-chart", never, { "data": { "alias": "data"; "required": true; "isSignal": true; }; "xAxisLabels": { "alias": "xAxisLabels"; "required": false; "isSignal": true; }; "yAxisLabels": { "alias": "yAxisLabels"; "required": false; "isSignal": true; }; "colorRange": { "alias": "colorRange"; "required": false; "isSignal": true; }; "showExport": { "alias": "showExport"; "required": false; "isSignal": true; }; }, { "cellClick": "cellClick"; }, never, never, true, never>;
}