import { Object3D, WonderlandEngine } from "@wonderlandengine/api";
import { VisualElementDefaultType } from "./visual_element_types.js";
export interface VisualElementParams {
    myType: unknown | VisualElementDefaultType;
    /** If not specified it will default to `Globals.getSceneObjects().myVisualElements` */
    myParent: Object3D;
    copyGeneric(other: Readonly<VisualElementParams>, deepCopy: boolean): void;
    cloneGeneric(deepClone: boolean): VisualElementParams;
    equalsGeneric(other: Readonly<VisualElementParams>): boolean;
}
export declare abstract class AbstractVisualElementParams<T extends AbstractVisualElementParams<T>> implements VisualElementParams {
    abstract myType: unknown | VisualElementDefaultType;
    myParent: Object3D;
    constructor(engine?: Readonly<WonderlandEngine>);
    copy(other: Readonly<T>, deepCopy?: boolean): void;
    clone(deepClone?: boolean): T;
    equals(other: Readonly<T>): boolean;
    copyGeneric(other: Readonly<VisualElementParams>, deepCopy?: boolean): void;
    cloneGeneric(deepClone?: boolean): VisualElementParams;
    equalsGeneric(other: Readonly<VisualElementParams>): boolean;
    protected abstract _copyHook(other: Readonly<T>, deepCopy: boolean): void;
    protected abstract _new(): T;
    protected abstract _equalsHook(other: Readonly<T>): boolean;
}
export interface VisualElement {
    update(dt: number): void;
    setVisible(visible: boolean): void;
    refresh(): void;
    setAutoRefresh(autoRefresh: boolean): void;
    getParamsGeneric(): VisualElementParams;
    setParamsGeneric(params: VisualElementParams): void;
    copyParamsGeneric(params: VisualElementParams): void;
    paramsUpdated(): void;
    clone(): VisualElement;
    destroy(): void;
}
export declare abstract class AbstractVisualElement<VisualElementType extends AbstractVisualElement<VisualElementType, VisualElementParamsType>, VisualElementParamsType extends AbstractVisualElementParams<VisualElementParamsType>> implements VisualElement {
    protected _myParams: VisualElementParamsType;
    protected _myPrevParams: VisualElementParamsType;
    protected _myVisible: boolean;
    protected _myAutoRefresh: boolean;
    protected _myDirty: boolean;
    protected _myDestroyed: boolean;
    constructor(params: VisualElementParamsType);
    update(dt: number): void;
    setVisible(visible: boolean): void;
    refresh(): void;
    setAutoRefresh(autoRefresh: boolean): void;
    getParams(): VisualElementParamsType;
    setParams(params: VisualElementParamsType): void;
    copyParams(params: VisualElementParamsType): void;
    getParamsGeneric(): VisualElementParams;
    setParamsGeneric(params: VisualElementParams): void;
    copyParamsGeneric(params: VisualElementParams): void;
    paramsUpdated(): void;
    private _markDirty;
    clone(): VisualElementType;
    protected _prepare(): void;
    private _refresh;
    protected _updateHook(dt: number): void;
    protected _visibleChanged(): void;
    protected abstract _build(): void;
    protected abstract _refreshHook(): void;
    protected abstract _new(params: VisualElementParamsType): VisualElementType;
    protected _destroyHook(): void;
    destroy(): void;
    isDestroyed(): boolean;
}