import type { Size, Element, Line } from "@hylimo/diagram-common";
import { Point } from "@hylimo/diagram-common";
import type { LayoutElement, SizeConstraints } from "../layoutElement.js";
import type { Layout } from "../engine/layout.js";
import { ContentShapeLayoutConfig } from "./contentShapeLayoutConfig.js";
/**
 * Layout config for ellipse
 */
export declare class EllipseLayoutConfig extends ContentShapeLayoutConfig {
    type: string;
    constructor();
    measure(layout: Layout, element: LayoutElement, constraints: SizeConstraints): Size;
    layout(layout: Layout, element: LayoutElement, position: Point, size: Size, id: string): Element[];
    outline(layout: Layout, element: LayoutElement, position: Point, size: Size, id: string): Line;
    /**
     * Calculates a stroke width vector based on the stroke width and the size of the ellipse
     * This is the stroke width at 45°
     *
     * @param strokeWidth the stroke width
     * @param size the size of the ellipse
     * @returns the stroke vector at 45°
     */
    private calculate45DegreeStrokeVector;
    /**
     * Calculates the inner size without the border
     *
     * @param size the total size
     * @param strokeWidth the stroke width
     * @returns the inner size
     */
    private calculateInnerSize;
    private calculateOuterSize;
}
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