import type { FerrsignView0 } from "ferrsign";
import type { WebGLRenderer } from "three";
import type { UILayer } from "../../layers/UILayer/UILayer";
import { UIColor } from "../../miscellaneous/color/UIColor";
import type { UIColorConfig } from "../../miscellaneous/color/UIColor.Internal";
import { UITextureView } from "../../miscellaneous/texture/UITextureView";
import type { UITextureConfig } from "../../miscellaneous/texture/UITextureView.Internal";
import { UIElement } from "../UIElement/UIElement";
import type { UIAnimatedImageOptions } from "./UIAnimatedImage.Internal";
import { UIAnimatedImageLoopMode } from "./UIAnimatedImage.Internal";
/** Frame-based texture animation element */
export declare class UIAnimatedImage extends UIElement {
    private readonly colorInternal;
    private readonly sequenceInternal;
    private frameRateInternal;
    private timeScaleInternal;
    private loopModeInternal;
    private readonly textureTransform;
    private isPlaying;
    private sequenceFrameIndex;
    private currentFrameIndexDirty;
    private accumulatedTime;
    private readonly signalPlayedInternal;
    private readonly signalPausedInternal;
    private readonly signalStoppedInternal;
    /**
     * Creates a new UIAnimatedImage instance.
     *
     * Defaults size to first frame dimensions if width and height not provided.
     *
     * @param layer - Layer containing this element
     * @param sequence - Array of textures forming animation
     * @param options - Configuration options
     */
    constructor(layer: UILayer, sequence: UITextureConfig[], options?: Partial<UIAnimatedImageOptions>);
    /** Multiplicative tint. Alpha channel controls opacity. */
    get color(): UIColor;
    /** Total animation duration in seconds */
    get duration(): number;
    /** Animation speed in frames per second */
    get frameRate(): number;
    /** Loop behavior */
    get loopMode(): UIAnimatedImageLoopMode;
    /** Animation frames as readonly array */
    get sequence(): readonly UITextureView[];
    /** Playback speed multiplier. Can be negative for reverse playback. */
    get timeScale(): number;
    /** Signal fired when animation starts or resumes */
    get signalPlayed(): FerrsignView0;
    /** Signal fired when animation pauses */
    get signalPaused(): FerrsignView0;
    /** Signal fired when animation stops and resets */
    get signalStopped(): FerrsignView0;
    /** Multiplicative tint. Alpha channel controls opacity. */
    set color(value: UIColorConfig);
    /** Animation speed in frames per second */
    set frameRate(value: number);
    /** Loop behavior */
    set loopMode(value: UIAnimatedImageLoopMode);
    /** Replaces animation frames. Stops playback. */
    set sequence(sequence: UITextureConfig[]);
    /** Playback speed multiplier. Can be negative for reverse playback. */
    set timeScale(value: number);
    /** Removes element and frees resources */
    destroy(): void;
    /** Starts or resumes animation playback */
    play(): void;
    /** Pauses animation at current frame */
    pause(): void;
    /** Stops animation and resets to first frame */
    stop(): void;
    protected onWillRender(renderer: WebGLRenderer, deltaTime: number): void;
    protected setPlaneTransform(): void;
    private readonly onTextureDimensionsChanged;
    private subscribeSequenceEvents;
    private unsubscribeSequenceEvents;
}