import type { Observer } from "../Misc/observable";
import { Observable } from "../Misc/observable";
import type { Nullable } from "../types";
import type { PointerInfo } from "../Events/pointerEvents";
import { Vector3 } from "../Maths/math.vector";
import { Color3 } from "../Maths/math.color";
import "../Meshes/Builders/linesBuilder";
import type { AbstractMesh } from "../Meshes/abstractMesh";
import { Mesh } from "../Meshes/mesh";
import type { Node } from "../node";
import { PointerDragBehavior } from "../Behaviors/Meshes/pointerDragBehavior";
import type { IGizmo } from "./gizmo";
import { Gizmo } from "./gizmo";
import { UtilityLayerRenderer } from "../Rendering/utilityLayerRenderer";
import { StandardMaterial } from "../Materials/standardMaterial";
import type { RotationGizmo } from "./rotationGizmo";
import { ShaderMaterial } from "../Materials/shaderMaterial";
/**
 * Interface for plane rotation gizmo
 */
export interface IPlaneRotationGizmo extends IGizmo {
    /** Drag behavior responsible for the gizmos dragging interactions */
    dragBehavior: PointerDragBehavior;
    /** Drag distance in babylon units that the gizmo will snap to when dragged */
    snapDistance: number;
    /** Sensitivity factor for dragging */
    sensitivity: number;
    /**
     * Event that fires each time the gizmo snaps to a new location.
     * * snapDistance is the change in distance
     */
    onSnapObservable: Observable<{
        snapDistance: number;
    }>;
    /** Accumulated relative angle value for rotation on the axis. */
    angle: number;
    /** If the gizmo is enabled */
    isEnabled: boolean;
    /** Default material used to render when gizmo is not disabled or hovered */
    coloredMaterial: StandardMaterial;
    /** Material used to render when gizmo is hovered with mouse */
    hoverMaterial: StandardMaterial;
    /** Color used to render the drag angle sector when gizmo is rotated with mouse */
    rotationColor: Color3;
    /** Material used to render when gizmo is disabled. typically grey. */
    disableMaterial: StandardMaterial;
}
/**
 * Single plane rotation gizmo
 */
export declare class PlaneRotationGizmo extends Gizmo implements IPlaneRotationGizmo {
    /**
     * Drag behavior responsible for the gizmos dragging interactions
     */
    dragBehavior: PointerDragBehavior;
    protected _pointerObserver: Nullable<Observer<PointerInfo>>;
    /**
     * Rotation distance in radians that the gizmo will snap to (Default: 0)
     */
    snapDistance: number;
    /**
     * Event that fires each time the gizmo snaps to a new location.
     * * snapDistance is the change in distance
     */
    onSnapObservable: Observable<{
        snapDistance: number;
    }>;
    /**
     * The maximum angle between the camera and the rotation allowed for interaction
     * If a rotation plane appears 'flat', a lower value allows interaction.
     */
    static MaxDragAngle: number;
    /**
     * Accumulated relative angle value for rotation on the axis. Reset to 0 when a dragStart occurs
     */
    angle: number;
    /**
     * Custom sensitivity value for the drag strength
     */
    sensitivity: number;
    /** Default material used to render when gizmo is not disabled or hovered */
    get coloredMaterial(): StandardMaterial;
    /** Material used to render when gizmo is hovered with mouse */
    get hoverMaterial(): StandardMaterial;
    /** Color used to render the drag angle sector when gizmo is rotated with mouse */
    set rotationColor(color: Color3);
    /** Material used to render when gizmo is disabled. typically grey. */
    get disableMaterial(): StandardMaterial;
    protected _isEnabled: boolean;
    protected _parent: Nullable<RotationGizmo>;
    protected _coloredMaterial: StandardMaterial;
    protected _hoverMaterial: StandardMaterial;
    protected _disableMaterial: StandardMaterial;
    protected _gizmoMesh: Mesh;
    protected _rotationDisplayPlane: Mesh;
    protected _dragging: boolean;
    protected _angles: Vector3;
    protected static _RotationGizmoVertexShader: string;
    protected static _RotationGizmoFragmentShader: string;
    protected _rotationShaderMaterial: ShaderMaterial;
    /**
     * Creates a PlaneRotationGizmo
     * @param planeNormal The normal of the plane which the gizmo will be able to rotate on
     * @param color The color of the gizmo
     * @param gizmoLayer The utility layer the gizmo will be added to
     * @param tessellation Amount of tessellation to be used when creating rotation circles
     * @param parent
     * @param useEulerRotation Use and update Euler angle instead of quaternion
     * @param thickness display gizmo axis thickness
     * @param hoverColor The color of the gizmo when hovering over and dragging
     * @param disableColor The Color of the gizmo when its disabled
     */
    constructor(planeNormal: Vector3, color?: Color3, gizmoLayer?: UtilityLayerRenderer, tessellation?: number, parent?: Nullable<RotationGizmo>, useEulerRotation?: boolean, thickness?: number, hoverColor?: Color3, disableColor?: Color3);
    /**
     * @internal
     * Create Geometry for Gizmo
     * @param parentMesh
     * @param thickness
     * @param tessellation
     * @returns
     */
    protected _createGizmoMesh(parentMesh: AbstractMesh, thickness: number, tessellation: number): {
        rotationMesh: Mesh;
        collider: Mesh;
    };
    protected _attachedNodeChanged(value: Nullable<Node>): void;
    /**
     * If the gizmo is enabled
     */
    set isEnabled(value: boolean);
    get isEnabled(): boolean;
    /**
     * Disposes of the gizmo
     */
    dispose(): void;
}