import { type Scene } from "@babylonjs/core/scene.js";
import { type Vector3 } from "@babylonjs/core/Maths/math.vector.js";
import { type TransformNode } from "@babylonjs/core/Meshes/transformNode.js";
import { type Nullable } from "@babylonjs/core/types.js";
import { type Control3D } from "./control3D.js";
import { VolumeBasedPanel } from "./volumeBasedPanel.js";
import { Mesh } from "@babylonjs/core/Meshes/mesh.js";
import { type AbstractMesh } from "@babylonjs/core/Meshes/abstractMesh.js";
import { type Container3D } from "./container3D.js";
import { type TouchHolographicButton } from "./touchHolographicButton.js";
/**
 * Simple menu that can contain holographic buttons
 */
export declare class TouchHolographicMenu extends VolumeBasedPanel {
    protected _backPlate: Mesh;
    private _backPlateMaterial;
    private _pickedPointObserver;
    private _currentMin;
    private _currentMax;
    private _backPlateMargin;
    /**
     * Scale for the buttons added to the menu
     */
    protected static MENU_BUTTON_SCALE: number;
    /**
     * Gets or sets the margin size of the backplate in button size units.
     * Setting this to 1, will make the backPlate margin the size of 1 button
     */
    get backPlateMargin(): number;
    set backPlateMargin(value: number);
    protected _createNode(scene: Scene): Nullable<TransformNode>;
    protected _affectMaterial(mesh: AbstractMesh): void;
    protected _mapGridNode(control: Control3D, nodePosition: Vector3): void;
    protected _finalProcessing(): void;
    private _updateCurrentMinMax;
    private _updateMargins;
    /**
     * Creates a holographic menu GUI 3D control
     * @param name name of the menu
     */
    constructor(name?: string);
    /**
     * Adds a button to the menu.
     * Please note that the back material of the button will be set to transparent as it is attached to the menu.
     *
     * @param button Button to add
     * @returns This menu
     */
    addButton(button: TouchHolographicButton): TouchHolographicMenu;
    /**
     * This method should not be used directly. It is inherited from `Container3D`.
     * Please use `addButton` instead.
     * @param _control the control to add
     * @returns the current container
     */
    addControl(_control: Control3D): Container3D;
    /**
     * Disposes the menu
     */
    dispose(): void;
}