/**
 * renderer — orchestrates the hot path: layout → paint (Frame) → diff → encode
 * (ANSI) → a single write. Keeps ONE retained frame, with a pool of 2 buffers.
 * Holds the painters for every component, focusable ones included.
 */
import type { Node } from '../components/index.js';
import type { Differ } from '../diff/index.js';
import type { Size } from '../frame/index.js';
import type { Terminal } from '../terminal/index.js';
import type { Theme } from '../theme/index.js';
/** Per-frame context the painters read (focus, animation, caret). */
export interface RenderContext {
    readonly focusKey?: string;
    readonly tick?: number;
    readonly elapsedMs?: number;
    readonly caret?: number;
}
export interface RenderStats {
    readonly frame: number;
    readonly changedLines: number;
    readonly changedCells: number;
    readonly bytesWritten: number;
    readonly layoutMicros: number;
    readonly paintMicros: number;
    readonly diffMicros: number;
    readonly encodeMicros: number;
}
export interface RenderOptions {
    readonly terminal: Terminal;
    readonly theme?: Theme;
    readonly differ?: Differ;
    readonly synchronized?: boolean;
}
export interface Renderer {
    readonly size: Size;
    render(root: Node, ctx?: RenderContext): RenderStats;
    invalidateAll(): void;
    resize(size: Size): void;
    setTheme(theme: Theme): void;
    debugFrame(): string;
}
export declare function createRenderer(options: RenderOptions): Renderer;
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