import type { BackgroundAgentRegistry, BackgroundJob } from '../agent/background-registry.js';
export interface BackgroundStatusBarOptions {
    stream?: NodeJS.WriteStream;
    throttleMs?: number;
    getAdjacentRows?: () => number;
}
export declare class BackgroundStatusBar {
    private readonly stream;
    private readonly registry;
    private readonly throttleMs;
    private started;
    private lastRepaint;
    private spinnerIndex;
    private spinnerInterval;
    private resizeUnsub;
    private resizeImmediateUnsub;
    private registryStartedHandler;
    private registrySettledHandler;
    private rowCount;
    private lastPaintStartRow;
    private preResizeStartRow;
    private preResizeRowCount;
    private onRowCountChange?;
    private readonly getAdjacentRows;
    constructor(registry?: BackgroundAgentRegistry, opts?: BackgroundStatusBarOptions);
    setRowCountChangeHandler(handler: (rows: number) => void): void;
    start(): void;
    stop(): void;
    private resetGeometry;
    private scheduleRepaint;
    redraw(): void;
    private repaint;
    private clearRows;
    private clearPreResizeRows;
    private formatItemLine;
    formatJobLine(job: BackgroundJob): string;
}