import type { FontWidthMap } from '../../../../core/components/text-ellipsis/chars-font-width-map.js';
import type { LabelOptions } from '../../../types/canvas.js';
type LabelWidthOptions = {
    nameWidth: number;
    nameValueWidth: number;
    multiLineWidth: number;
};
export declare const LINE_SPACING = 2;
export declare const FONT_SIZE_DIFFERENCE = 1;
/**
 * Returns the labelOption that fits the current node
 * @internal
 * @param height - height of the node.
 * @param width - width of the node.
 * @param fontSize - font size of the label.
 * @param padding - padding around the label
 * @param labelWidth - object containing width for each labelFit scenario,
 */
export declare const getLabelFit: (height: number, width: number, fontSize: number, padding: number, labelWidth: LabelWidthOptions) => "ellipsis" | "inline" | "fallback" | "name" | "multi";
/**
 * Returns the center of the node.
 * @internal
 * @param height - height of the node.
 * @param width - width of the node.
 */
export declare const getRectCenter: (width: number, height: number) => {
    centerX: number;
    centerY: number;
};
/**
 * Returns the object containing width for each labelFit scenario,
 * using the character width map for estimated measurements.
 * @internal
 * @param nameWidth - pre-calculated name width.
 * @param value - current node value.
 * @param charWidthMap - character width map for width estimation.
 */
export declare const getLabelWidth: (nameWidth: number, value: string, charWidthMap: FontWidthMap) => {
    nameWidth: number;
    nameValueWidth: number;
    multiLineWidth: number;
};
/**
 * Returns the array containing the label items for a given node.
 * Depending on the available space labels are shown in 2 lines or in 1 line or with name only.
 * @internal
 * @param labelFit - current labelFit scenario
 * @param name - current node name.
 * @param value - current node value.
 */
export declare const getAppliedLabels: (labelFit: LabelOptions, name: string, value: string) => string[] | never[];
/**
 * Returns the vertical offset of the labels.
 * @internal
 * @param labels - array of label for the given node.
 * @param labelIndex - current index of the labels array item.
 * @param fontSize - font size value.
 */
export declare const getOffsetY: (labels: string[], labelIndex: number, fontSize: number) => number;
export {};