import { SizeLegendConfigInterface } from './config';
import { DisplayStateManager } from '../../_abstract/display-state-manager';
/**
 * The `SizeLegend` class is responsible for rendering a size legend UI component. It provides methods to set the configuration, show/hide the legend, and handle user interactions.
 *
 * The legend displays a visual representation of the size scale, with minimum and maximum size indicators. It also supports optional labels and event handlers for click and hover interactions.
 *
 * The class takes a container node and an optional configuration object in the constructor. The configuration can be updated at any time using the `setConfig` method.
 */
export declare class SizeLegend extends DisplayStateManager {
    private _config;
    private _containerNode;
    private _legend;
    private _sizeElements;
    private _isHidden;
    /**
     * Constructs a new `SizeLegend` instance with the provided container node and optional configuration.
     *
     * @param containerNode - The HTML element that will contain the size legend.
     * @param config - An optional configuration object that will be used to initialize the size legend.
     */
    constructor(containerNode: HTMLElement, config?: SizeLegendConfigInterface);
    /**
     * Hides the size legend by removing the 'enabled' class and adding the 'disabled' class to the legend element.
     */
    hide(): void;
    /**
     * Shows the size legend by removing the 'disabled' class and adding the 'enabled' class to the legend element.
     */
    show(): void;
    /**
     * Sets the configuration for the size legend.
     *
     * @param config - An optional configuration object that will be used to update the size legend.
     */
    setConfig(config?: SizeLegendConfigInterface): void;
    /**
     * Sets the text content of the fallback div to 'Data loading...' to indicate that data is currently being loaded.
     */
    setLoadingState(): void;
    /**
     * Destroys the size legend by removing event listeners and removing the legend and fallback message elements from the container node.
     */
    destroy(): void;
    /**
     * Gets the min and max size elements used in the size legend.
     * @returns The min and max size elements, or null if they have not been created yet.
     */
    get sizeElements(): {
        min: HTMLElement;
        max: HTMLElement;
    } | null;
    /**
     * Gets the current configuration for the size legend.
     * @returns The size legend configuration.
     */
    get config(): SizeLegendConfigInterface;
    /**
     * Gets whether the size legend is currently hidden.
     * @returns `true` if the size legend is hidden, `false` otherwise.
     */
    get isHidden(): boolean;
    private _createElements;
    private _createLegendElement;
    private _createSizeElement;
    private _updateLegend;
    private _updateSizeElement;
    private _updateSublabel;
    private _formatLabel;
    private _handleClick;
    private _handleHover;
    private _handleSizeElementHover;
    private _handleSizeElementClick;
}
export type { SizeLegendConfigInterface };