import type { App } from '../../App';
import type { Group } from '../../shapes/Group';
import type { RoundedRect, TextNode } from '../../shapes/index';
import type { WidgetBounds } from '../layout';
import type { ThemePalette } from '../themes';
export interface DigitalGaugeStyle {
    panelFill: string;
    panelStroke: string;
    labelColor: string;
    valueColor: string;
    unitColor: string;
    barTrack: string;
    barFill: string;
    segmentOn: string;
    segmentOff: string;
}
export declare function digitalGaugeStyle(theme: ThemePalette): DigitalGaugeStyle;
export interface DigitalGaugeOptions {
    label: string;
    value: number;
    max: number;
    unit?: string;
    formatValue?: (v: number) => string;
    showBar?: boolean;
    showSegments?: boolean;
    segmentCount?: number;
}
export interface DigitalGaugeParts {
    valueText: TextNode;
    barFill?: RoundedRect;
    segments?: RoundedRect[];
    segmentOn: string;
    segmentOff: string;
}
/** LCD-style digital gauge — large readout, label, optional bar/segments. */
export declare function buildDigitalGauge(app: App, group: Group, bounds: WidgetBounds, style: DigitalGaugeStyle, opts: DigitalGaugeOptions): DigitalGaugeParts;
export declare function updateDigitalGauge(parts: DigitalGaugeParts, value: number, max: number, format: (v: number) => string, barWidth: number, segmentCount?: number): void;