/**
 * Flowchart primitives — aligned with Python `flow/flow.py` (major classes).
 */
import { Element } from "../element.js";
import type { XY } from "../geometry/point.js";
/** Python `Box._set_anchors` — 16 compass points on a rectangle `w`×`h`. */
export declare function setBoxAnchors16(anchors: Record<string, XY>, w: number, h: number): void;
/** Process box with rounded corners (`flow.RoundBox`). */
export declare class RoundBox extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
        cornerradius?: number;
    });
}
/** Start/end terminal (pill shape); `cornerradius` becomes `h/2`. */
export declare class Terminal extends RoundBox {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
    });
}
/** Alias for Python `RoundProcess`. */
export declare const RoundProcess: typeof RoundBox;
/** Process box (rectangle). */
export declare class FlowBox extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
    });
}
/** Python `Process` — same as `FlowBox`. */
export declare const Process: typeof FlowBox;
/** Python `Start` — same as `Terminal`. */
export declare const Start: typeof Terminal;
/** Subroutine / predefined process box with side bars. */
export declare class Subroutine extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
        s?: number;
    });
}
/** Parallelogram (data / I/O). */
export declare class Data extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
        slant?: number;
    });
}
/** Ellipse outline (sampled polygon). */
export declare class Ellipse extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
    });
}
/** Diamond decision; optional branch labels `N`/`E`/`S`/`W` (Python keywords). */
export declare class Decision extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
        N?: string;
        E?: string;
        S?: string;
        W?: string;
        fontsize?: number;
        font?: string;
    });
}
/** Connector circle (`flow.Connect`). */
export declare class Connect extends Element {
    constructor(userParams?: Record<string, unknown> & {
        w?: number;
        h?: number;
        r?: number;
    });
}
/** Python `Circle` / `State` — same as `Connect`. */
export declare const Circle: typeof Connect;
export declare const State: typeof Connect;
/** Double circle (accept / end state). */
export declare class StateEnd extends Connect {
    constructor(userParams?: Record<string, unknown> & {
        dr?: number;
        w?: number;
        h?: number;
        r?: number;
    });
}