import type { WebGLRenderer } from "three";
import type { UILayer } from "../../layers/UILayer/UILayer";
import type { UIProperty } from "../../miscellaneous/generic-plane/shared";
import { UIMicro } from "../../miscellaneous/micro/UIMicro";
import type { UIBlendMode } from "../../miscellaneous/UIBlendMode";
import type { UIMode } from "../../miscellaneous/UIMode";
import type { UITransparencyMode } from "../../miscellaneous/UITransparencyMode";
import type { UISceneWrapperView } from "../../wrappers/UISceneWrapper/UISceneWrapper.Internal";
import { UIDummy } from "../UIDummy/UIDummy";
import type { UIElementOptions } from "./UIElement.Internal";
/** Base class for renderable UI elements */
export declare abstract class UIElement extends UIDummy {
    /** Transforms that don't affect constraints */
    readonly micro: UIMicro;
    protected readonly sceneWrapper: UISceneWrapperView;
    protected planeHandler: number;
    private transparencyModeInternal;
    private transparencyModeDirty;
    private blendModeInternal;
    private blendModeDirty;
    private hueInternal;
    private saturationInternal;
    private lightnessInternal;
    private hslDirty;
    private readonly hslValue;
    private visibilityDirty;
    /**
     * Creates a new UIElement instance.
     *
     * @param layer - Layer containing this element
     * @param source - GLSL shader source code
     * @param properties - Shader uniform properties
     * @param options - Configuration options
     */
    constructor(layer: UILayer, source: string, properties: Record<string, UIProperty>, options?: Partial<UIElementOptions>);
    /** Alpha blending mode */
    get transparencyMode(): UITransparencyMode;
    /** Color blending mode (only affects BLEND transparency) */
    get blendMode(): UIBlendMode;
    /** Hue shift in degrees */
    get hue(): number;
    /** Saturation multiplier (1 = unchanged, 0 = grayscale) */
    get saturation(): number;
    /** Lightness offset (0 = unchanged) */
    get lightness(): number;
    /**
     * Controls visibility and interactivity.
     *
     * Redeclared here because declaring only a setter would shadow the accessor
     * pair inherited from {@link UIDummy}, making reads return undefined.
     */
    get mode(): UIMode;
    /** Alpha blending mode */
    set transparencyMode(value: UITransparencyMode);
    /** Color blending mode (only affects BLEND transparency) */
    set blendMode(value: UIBlendMode);
    /** Hue shift in degrees */
    set hue(value: number);
    /** Saturation multiplier (1 = unchanged, 0 = grayscale) */
    set saturation(value: number);
    /** Lightness offset (0 = unchanged) */
    set lightness(value: number);
    /** Controls visibility and interactivity */
    set mode(value: UIMode);
    /** Removes element and frees resources */
    destroy(): void;
    protected setPlaneTransform(): void;
    protected onWillRender(renderer: WebGLRenderer, deltaTime: number): void;
    private readonly handleWillRender;
}