import * as PIXI from "pixi.js";
import { z } from "zod";
import { Subtitles } from "../library/Subtitles";
/**
 * Highlight animation presets used for karaoke-style subtitle emphasis.
 */
export declare enum HighlightAnimationEnum {
    NONE = "none",
    POP = "pop",
    POP_ROTATE = "pop_rotate",
    WIGGLE = "wiggle"
}
/**
 * Zod schema for text style properties shared by main and highlighted subtitle text.
 */
export declare const CommonTextStyleSchema: z.ZodObject<{
    color: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    fontSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    fontWeight: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "bold", "bolder", "lighter", "100", "200", "300", "400", "500", "600", "700", "800", "900"]>>>;
    fontFamily: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    fontStyle: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "italic", "oblique"]>>>;
    letterSpacing: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadow: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
    dropShadowAlpha: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowAngle: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowBlur: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    dropShadowDistance: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    backgroundColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    backgroundPadding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    backgroundCornerRadius: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    strokeThickness: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    strokeColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    padding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
}, "strip", z.ZodTypeAny, {
    color: string;
    padding: number;
    fontSize: number;
    fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
    fontFamily: string;
    fontStyle: "normal" | "italic" | "oblique";
    backgroundColor: string;
    strokeColor: string;
    strokeThickness: number;
    letterSpacing: number;
    dropShadow: boolean;
    dropShadowAlpha: number;
    dropShadowAngle: number;
    dropShadowBlur: number;
    dropShadowColor: string;
    dropShadowDistance: number;
    backgroundPadding: number;
    backgroundCornerRadius: number;
}, {
    color?: string | undefined;
    fontSize?: number | undefined;
    fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
    fontFamily?: string | undefined;
    fontStyle?: "normal" | "italic" | "oblique" | undefined;
    letterSpacing?: number | undefined;
    dropShadow?: boolean | undefined;
    dropShadowAlpha?: number | undefined;
    dropShadowAngle?: number | undefined;
    dropShadowBlur?: number | undefined;
    dropShadowColor?: string | undefined;
    dropShadowDistance?: number | undefined;
    backgroundColor?: string | undefined;
    backgroundPadding?: number | undefined;
    backgroundCornerRadius?: number | undefined;
    strokeThickness?: number | undefined;
    strokeColor?: string | undefined;
    padding?: number | undefined;
}>;
/**
 * Zod schema for the main subtitle text style.
 */
export declare const MainTextStyleSchema: z.ZodObject<{
    color: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    padding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    fontSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    fontWeight: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "bold", "bolder", "lighter", "100", "200", "300", "400", "500", "600", "700", "800", "900"]>>>;
    fontFamily: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    fontStyle: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "italic", "oblique"]>>>;
    backgroundColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    strokeColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    strokeThickness: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    letterSpacing: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadow: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
    dropShadowAlpha: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowAngle: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowBlur: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    dropShadowDistance: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    backgroundPadding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    backgroundCornerRadius: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    wordWrapWidth: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    wordWrap: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
    leading: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    lineHeight: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
}, "strip", z.ZodTypeAny, {
    color: string;
    padding: number;
    fontSize: number;
    fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
    fontFamily: string;
    fontStyle: "normal" | "italic" | "oblique";
    backgroundColor: string;
    strokeColor: string;
    strokeThickness: number;
    wordWrapWidth: number;
    lineHeight: number;
    letterSpacing: number;
    dropShadow: boolean;
    dropShadowAlpha: number;
    dropShadowAngle: number;
    dropShadowBlur: number;
    dropShadowColor: string;
    dropShadowDistance: number;
    wordWrap: boolean;
    backgroundPadding: number;
    backgroundCornerRadius: number;
    leading: number;
}, {
    color?: string | undefined;
    padding?: number | undefined;
    fontSize?: number | undefined;
    fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
    fontFamily?: string | undefined;
    fontStyle?: "normal" | "italic" | "oblique" | undefined;
    backgroundColor?: string | undefined;
    strokeColor?: string | undefined;
    strokeThickness?: number | undefined;
    letterSpacing?: number | undefined;
    dropShadow?: boolean | undefined;
    dropShadowAlpha?: number | undefined;
    dropShadowAngle?: number | undefined;
    dropShadowBlur?: number | undefined;
    dropShadowColor?: string | undefined;
    dropShadowDistance?: number | undefined;
    backgroundPadding?: number | undefined;
    backgroundCornerRadius?: number | undefined;
    wordWrapWidth?: number | undefined;
    wordWrap?: boolean | undefined;
    leading?: number | undefined;
    lineHeight?: number | undefined;
}>;
/**
 * Zod schema for the highlighted subtitle text style.
 */
export declare const HighlightTextStyleSchema: z.ZodObject<{
    color: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    padding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    fontSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    fontWeight: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "bold", "bolder", "lighter", "100", "200", "300", "400", "500", "600", "700", "800", "900"]>>>;
    fontFamily: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    fontStyle: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "italic", "oblique"]>>>;
    backgroundColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    strokeColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    strokeThickness: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    letterSpacing: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadow: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
    dropShadowAlpha: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowAngle: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowBlur: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    dropShadowColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
    dropShadowDistance: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    backgroundPadding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    backgroundCornerRadius: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
}, "strip", z.ZodTypeAny, {
    color: string;
    padding: number;
    fontSize: number;
    fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
    fontFamily: string;
    fontStyle: "normal" | "italic" | "oblique";
    backgroundColor: string;
    strokeColor: string;
    strokeThickness: number;
    letterSpacing: number;
    dropShadow: boolean;
    dropShadowAlpha: number;
    dropShadowAngle: number;
    dropShadowBlur: number;
    dropShadowColor: string;
    dropShadowDistance: number;
    backgroundPadding: number;
    backgroundCornerRadius: number;
}, {
    color?: string | undefined;
    padding?: number | undefined;
    fontSize?: number | undefined;
    fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
    fontFamily?: string | undefined;
    fontStyle?: "normal" | "italic" | "oblique" | undefined;
    backgroundColor?: string | undefined;
    strokeColor?: string | undefined;
    strokeThickness?: number | undefined;
    letterSpacing?: number | undefined;
    dropShadow?: boolean | undefined;
    dropShadowAlpha?: number | undefined;
    dropShadowAngle?: number | undefined;
    dropShadowBlur?: number | undefined;
    dropShadowColor?: string | undefined;
    dropShadowDistance?: number | undefined;
    backgroundPadding?: number | undefined;
    backgroundCornerRadius?: number | undefined;
}>;
/**
 * Zod schema for subtitle display mode.
 */
export declare const TextModeSchema: z.ZodEnum<["full", "partial"]>;
/**
 * Shared subtitle text style shape used by both the main subtitle layer and the highlighted-word layer.
 *
 * It contains the overlap between those two style systems so callers can build shared presets before specializing the
 * main or highlight style separately.
 */
export type CommonTextStyle = z.infer<typeof CommonTextStyleSchema>;
/**
 * Style payload for the highlighted subtitle word layer.
 *
 * This represents the subset of text styling applied specifically to the emphasized word that is animated on top of
 * the main subtitle line.
 */
export type HighlightTextStyle = z.infer<typeof HighlightTextStyleSchema>;
/**
 * Style payload for the main subtitle text block.
 *
 * In addition to the common text style fields, this type includes layout controls such as wrapping and line spacing
 * that affect full subtitle line rendering.
 */
export type MainTextStyle = z.infer<typeof MainTextStyleSchema>;
/**
 * Subtitle reveal mode describing whether rendering keeps the full line visible or only the currently progressed
 * portion around the highlighted word.
 */
export type TextModeType = z.infer<typeof TextModeSchema>;
/**
 * Zod schema for serialized subtitle manager state.
 */
export declare const SubtitlesManagerSchema: z.ZodObject<{
    textMode: z.ZodEnum<["full", "partial"]>;
    highlightEnabled: z.ZodDefault<z.ZodBoolean>;
    highlightAnimation: z.ZodNativeEnum<typeof HighlightAnimationEnum>;
    highlightAnimationSpeed: z.ZodNumber;
    mainTextStyle: z.ZodObject<{
        color: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        padding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        fontSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        fontWeight: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "bold", "bolder", "lighter", "100", "200", "300", "400", "500", "600", "700", "800", "900"]>>>;
        fontFamily: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        fontStyle: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "italic", "oblique"]>>>;
        backgroundColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        strokeColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        strokeThickness: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        letterSpacing: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadow: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
        dropShadowAlpha: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadowAngle: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadowBlur: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadowColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        dropShadowDistance: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        backgroundPadding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        backgroundCornerRadius: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        wordWrapWidth: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        wordWrap: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
        leading: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        lineHeight: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    }, "strip", z.ZodTypeAny, {
        color: string;
        padding: number;
        fontSize: number;
        fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
        fontFamily: string;
        fontStyle: "normal" | "italic" | "oblique";
        backgroundColor: string;
        strokeColor: string;
        strokeThickness: number;
        wordWrapWidth: number;
        lineHeight: number;
        letterSpacing: number;
        dropShadow: boolean;
        dropShadowAlpha: number;
        dropShadowAngle: number;
        dropShadowBlur: number;
        dropShadowColor: string;
        dropShadowDistance: number;
        wordWrap: boolean;
        backgroundPadding: number;
        backgroundCornerRadius: number;
        leading: number;
    }, {
        color?: string | undefined;
        padding?: number | undefined;
        fontSize?: number | undefined;
        fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
        fontFamily?: string | undefined;
        fontStyle?: "normal" | "italic" | "oblique" | undefined;
        backgroundColor?: string | undefined;
        strokeColor?: string | undefined;
        strokeThickness?: number | undefined;
        letterSpacing?: number | undefined;
        dropShadow?: boolean | undefined;
        dropShadowAlpha?: number | undefined;
        dropShadowAngle?: number | undefined;
        dropShadowBlur?: number | undefined;
        dropShadowColor?: string | undefined;
        dropShadowDistance?: number | undefined;
        backgroundPadding?: number | undefined;
        backgroundCornerRadius?: number | undefined;
        wordWrapWidth?: number | undefined;
        wordWrap?: boolean | undefined;
        leading?: number | undefined;
        lineHeight?: number | undefined;
    }>;
    highlightTextStyle: z.ZodObject<{
        color: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        padding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        fontSize: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        fontWeight: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "bold", "bolder", "lighter", "100", "200", "300", "400", "500", "600", "700", "800", "900"]>>>;
        fontFamily: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        fontStyle: z.ZodDefault<z.ZodOptional<z.ZodEnum<["normal", "italic", "oblique"]>>>;
        backgroundColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        strokeColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        strokeThickness: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        letterSpacing: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadow: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
        dropShadowAlpha: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadowAngle: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadowBlur: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        dropShadowColor: z.ZodDefault<z.ZodOptional<z.ZodString>>;
        dropShadowDistance: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        backgroundPadding: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
        backgroundCornerRadius: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
    }, "strip", z.ZodTypeAny, {
        color: string;
        padding: number;
        fontSize: number;
        fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
        fontFamily: string;
        fontStyle: "normal" | "italic" | "oblique";
        backgroundColor: string;
        strokeColor: string;
        strokeThickness: number;
        letterSpacing: number;
        dropShadow: boolean;
        dropShadowAlpha: number;
        dropShadowAngle: number;
        dropShadowBlur: number;
        dropShadowColor: string;
        dropShadowDistance: number;
        backgroundPadding: number;
        backgroundCornerRadius: number;
    }, {
        color?: string | undefined;
        padding?: number | undefined;
        fontSize?: number | undefined;
        fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
        fontFamily?: string | undefined;
        fontStyle?: "normal" | "italic" | "oblique" | undefined;
        backgroundColor?: string | undefined;
        strokeColor?: string | undefined;
        strokeThickness?: number | undefined;
        letterSpacing?: number | undefined;
        dropShadow?: boolean | undefined;
        dropShadowAlpha?: number | undefined;
        dropShadowAngle?: number | undefined;
        dropShadowBlur?: number | undefined;
        dropShadowColor?: string | undefined;
        dropShadowDistance?: number | undefined;
        backgroundPadding?: number | undefined;
        backgroundCornerRadius?: number | undefined;
    }>;
    position: z.ZodOptional<z.ZodTuple<[z.ZodNumber, z.ZodNumber], null>>;
    scale: z.ZodDefault<z.ZodOptional<z.ZodNumber>>;
}, "strip", z.ZodTypeAny, {
    scale: number;
    textMode: "partial" | "full";
    highlightEnabled: boolean;
    highlightAnimation: HighlightAnimationEnum;
    highlightAnimationSpeed: number;
    mainTextStyle: {
        color: string;
        padding: number;
        fontSize: number;
        fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
        fontFamily: string;
        fontStyle: "normal" | "italic" | "oblique";
        backgroundColor: string;
        strokeColor: string;
        strokeThickness: number;
        wordWrapWidth: number;
        lineHeight: number;
        letterSpacing: number;
        dropShadow: boolean;
        dropShadowAlpha: number;
        dropShadowAngle: number;
        dropShadowBlur: number;
        dropShadowColor: string;
        dropShadowDistance: number;
        wordWrap: boolean;
        backgroundPadding: number;
        backgroundCornerRadius: number;
        leading: number;
    };
    highlightTextStyle: {
        color: string;
        padding: number;
        fontSize: number;
        fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
        fontFamily: string;
        fontStyle: "normal" | "italic" | "oblique";
        backgroundColor: string;
        strokeColor: string;
        strokeThickness: number;
        letterSpacing: number;
        dropShadow: boolean;
        dropShadowAlpha: number;
        dropShadowAngle: number;
        dropShadowBlur: number;
        dropShadowColor: string;
        dropShadowDistance: number;
        backgroundPadding: number;
        backgroundCornerRadius: number;
    };
    position?: [number, number] | undefined;
}, {
    textMode: "partial" | "full";
    highlightAnimation: HighlightAnimationEnum;
    highlightAnimationSpeed: number;
    mainTextStyle: {
        color?: string | undefined;
        padding?: number | undefined;
        fontSize?: number | undefined;
        fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
        fontFamily?: string | undefined;
        fontStyle?: "normal" | "italic" | "oblique" | undefined;
        backgroundColor?: string | undefined;
        strokeColor?: string | undefined;
        strokeThickness?: number | undefined;
        letterSpacing?: number | undefined;
        dropShadow?: boolean | undefined;
        dropShadowAlpha?: number | undefined;
        dropShadowAngle?: number | undefined;
        dropShadowBlur?: number | undefined;
        dropShadowColor?: string | undefined;
        dropShadowDistance?: number | undefined;
        backgroundPadding?: number | undefined;
        backgroundCornerRadius?: number | undefined;
        wordWrapWidth?: number | undefined;
        wordWrap?: boolean | undefined;
        leading?: number | undefined;
        lineHeight?: number | undefined;
    };
    highlightTextStyle: {
        color?: string | undefined;
        padding?: number | undefined;
        fontSize?: number | undefined;
        fontWeight?: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900" | undefined;
        fontFamily?: string | undefined;
        fontStyle?: "normal" | "italic" | "oblique" | undefined;
        backgroundColor?: string | undefined;
        strokeColor?: string | undefined;
        strokeThickness?: number | undefined;
        letterSpacing?: number | undefined;
        dropShadow?: boolean | undefined;
        dropShadowAlpha?: number | undefined;
        dropShadowAngle?: number | undefined;
        dropShadowBlur?: number | undefined;
        dropShadowColor?: string | undefined;
        dropShadowDistance?: number | undefined;
        backgroundPadding?: number | undefined;
        backgroundCornerRadius?: number | undefined;
    };
    highlightEnabled?: boolean | undefined;
    position?: [number, number] | undefined;
    scale?: number | undefined;
}>;
/**
 * Renders active subtitles, handles subtitle styling, and drives highlighted word animation.
 */
export declare class SubtitlesManager {
    private mainText;
    private mainLinePool;
    private mainTextLineAfter;
    private mainTextBackground;
    private textContainer;
    private highlightedText;
    private highlightBackground;
    private textMode;
    private highlightEnabled;
    private highlightAnimation;
    private highlightAnimationSpeed;
    private tween;
    private tweenGroup;
    private wordTween;
    private backgroundColor;
    private backgroundPadding;
    private backgroundCornerRadius;
    private highlightBackgroundColor;
    private highlightBackgroundPadding;
    private highlightBackgroundCornerRadius;
    private mainTextStyle;
    private highlightTextStyle;
    private position;
    private scale;
    private cachedMainTextTransform;
    private getInitialTweenValue;
    /**
     * Creates a subtitle manager with default styling and animation state.
     */
    constructor();
    /**
     * Creates the PIXI display objects required to render subtitles and attaches them to the display stage.
     *
     * @returns Nothing.
     */
    init(): void;
    /**
     * Updates the highlighted word animation preset and playback speed.
     *
     * @param animation Highlight animation preset to use.
     * @param speedMultiplier Multiplier applied to the animation speed.
     * @returns Nothing.
     */
    setHighlightAnimation(animation: HighlightAnimationEnum, speedMultiplier?: number): void;
    /**
     * Refreshes the duration of subtitle clips that reference the specified subtitles asset.
     *
     * @param subtitleId Subtitles asset ID to refresh.
     * @returns Nothing.
     */
    updateSubtitlesClips(subtitleId: string): void;
    /**
     * Sets the anchor position of the rendered subtitles.
     *
     * @param x Horizontal position in display pixels.
     * @param y Vertical position in display pixels.
     * @returns Nothing.
     */
    setPosition(x: number, y: number): void;
    /**
     * Returns the subtitle anchor position.
     *
     * @returns The `[x, y]` subtitle position.
     */
    getPosition(): number[];
    /**
     * Sets the rendered subtitle scale.
     *
     * @param scale Subtitle scale multiplier.
     * @returns Nothing.
     */
    setScale(scale: number): void;
    /**
     * Returns the subtitle scale multiplier.
     *
     * @returns The current subtitle scale.
     */
    getScale(): number;
    /**
     * Sets whether subtitles should reveal full lines or only the currently highlighted segment.
     *
     * @param mode Subtitle display mode.
     * @returns Nothing.
     */
    setTextMode(mode: TextModeType): void;
    /**
     * Updates the main subtitle text style.
     *
     * @param style Partial style patch to apply.
     * @param reset When `true`, resets missing properties to schema defaults before applying the patch.
     * @returns Nothing.
     */
    setMainTextStyle(style: Partial<MainTextStyle>, reset?: boolean): void;
    /**
     * Returns the current subtitle display mode.
     *
     * @returns The text mode.
     */
    getTextMode(): "partial" | "full";
    /**
     * Returns the current main subtitle text style.
     *
     * @returns The main text style.
     */
    getMainTextStyle(): {
        color: string;
        padding: number;
        fontSize: number;
        fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
        fontFamily: string;
        fontStyle: "normal" | "italic" | "oblique";
        backgroundColor: string;
        strokeColor: string;
        strokeThickness: number;
        wordWrapWidth: number;
        lineHeight: number;
        letterSpacing: number;
        dropShadow: boolean;
        dropShadowAlpha: number;
        dropShadowAngle: number;
        dropShadowBlur: number;
        dropShadowColor: string;
        dropShadowDistance: number;
        wordWrap: boolean;
        backgroundPadding: number;
        backgroundCornerRadius: number;
        leading: number;
    };
    /**
     * Returns the current highlighted subtitle text style.
     *
     * @returns The highlighted text style.
     */
    getHighlightTextStyle(): {
        color: string;
        padding: number;
        fontSize: number;
        fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
        fontFamily: string;
        fontStyle: "normal" | "italic" | "oblique";
        backgroundColor: string;
        strokeColor: string;
        strokeThickness: number;
        letterSpacing: number;
        dropShadow: boolean;
        dropShadowAlpha: number;
        dropShadowAngle: number;
        dropShadowBlur: number;
        dropShadowColor: string;
        dropShadowDistance: number;
        backgroundPadding: number;
        backgroundCornerRadius: number;
    };
    /**
     * Returns the active highlight animation preset.
     *
     * @returns The highlight animation.
     */
    getHighlightAnimation(): HighlightAnimationEnum;
    /**
     * Indicates whether highlighted word rendering is enabled.
     *
     * @returns `true` if highlighted words are rendered; otherwise `false`.
     */
    getHighlightEnabled(): boolean;
    /**
     * Enables or disables highlighted word rendering.
     *
     * @param enabled Whether highlighted rendering should be enabled.
     * @returns Nothing.
     */
    setHighlightEnabled(enabled: boolean): void;
    /**
     * Updates the highlighted subtitle text style.
     *
     * @param style Partial style patch to apply.
     * @param reset When `true`, resets missing properties to schema defaults before applying the patch.
     * @returns Nothing.
     */
    setHighlightedTextStyle(style: Partial<HighlightTextStyle>, reset?: boolean): void;
    /**
     * Repositions and optionally rescales subtitles after the display size changes.
     *
     * @param oldWidth Previous display width in pixels.
     * @param oldHeight Previous display height in pixels.
     * @param newWidth New display width in pixels.
     * @param newHeight New display height in pixels.
     * @returns Nothing.
     */
    onViewResize(oldWidth: number, oldHeight: number, newWidth: number, newHeight: number): void;
    private extractWordInfo;
    private getSubtitleText;
    private getHighlightedWordInfo;
    private restartTween;
    private measureLineAdvance;
    private measureCanvasText;
    private getTextBoundaryLetterSpacing;
    private getPixiTextContentOffsetX;
    private getActualTextVerticalBounds;
    private getPixiTextSingleLineBaselineOffsetY;
    private createMainLineText;
    private ensureMainLinePoolSize;
    private applyMainStyleToText;
    private setRenderedLineLayoutStyle;
    private hideUnusedMainLines;
    private getWrappedLineRanges;
    private resetVisibleState;
    private getActiveSubtitleState;
    private applyLineTextTransform;
    private renderMainBackground;
    private renderHighlightBackground;
    private renderPlainSubtitle;
    private getHighlightRenderData;
    private renderHighlightedSubtitle;
    private updateTransformCache;
    /**
     * Recomputes the active subtitle text and updates the rendered subtitle graphics.
     *
     * @param currentTime Current timeline time, in seconds.
     * @returns Nothing.
     */
    update(currentTime: number): void;
    /**
     * Parses SRT text into a subtitles asset.
     *
     * @param srt Raw SRT document text.
     * @returns The parsed subtitles asset.
     */
    convertSRTToSubtitles(srt: string): Subtitles;
    /**
     * Requests embedded subtitle tracks from a video media asset.
     *
     * @param mediaDataId Video media asset ID.
     * @returns The raw subtitle extraction result returned by FFmpeg.
     */
    extractSubtitlesFromVideo(mediaDataId: string): Promise<string> | "";
    /**
     * Checks whether a point intersects the visible subtitle container.
     *
     * @param point Cursor coordinates in display space.
     * @returns `true` if the point hits the visible subtitle region; otherwise `false`.
     */
    hitTest(point: {
        cursorX: number;
        cursorY: number;
    }): boolean;
    /**
     * Returns the root PIXI container used to render subtitles.
     *
     * @returns The subtitle display container.
     */
    getDisplayContainer(): PIXI.Container<PIXI.DisplayObject>;
    /**
     * Returns the primary PIXI text object used for main subtitle rendering.
     *
     * @returns The main subtitle text object.
     */
    getMainTextContainer(): PIXI.Text;
    /**
     * Destroys all subtitle display objects and animation resources.
     *
     * @returns Nothing.
     */
    destroy(): void;
    /**
     * Serializes subtitle manager settings and style state.
     *
     * @returns The serialized subtitle manager payload.
     */
    serialize(): {
        scale: number;
        textMode: "partial" | "full";
        highlightEnabled: boolean;
        highlightAnimation: HighlightAnimationEnum;
        highlightAnimationSpeed: number;
        mainTextStyle: {
            color: string;
            padding: number;
            fontSize: number;
            fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
            fontFamily: string;
            fontStyle: "normal" | "italic" | "oblique";
            backgroundColor: string;
            strokeColor: string;
            strokeThickness: number;
            wordWrapWidth: number;
            lineHeight: number;
            letterSpacing: number;
            dropShadow: boolean;
            dropShadowAlpha: number;
            dropShadowAngle: number;
            dropShadowBlur: number;
            dropShadowColor: string;
            dropShadowDistance: number;
            wordWrap: boolean;
            backgroundPadding: number;
            backgroundCornerRadius: number;
            leading: number;
        };
        highlightTextStyle: {
            color: string;
            padding: number;
            fontSize: number;
            fontWeight: "normal" | "bold" | "bolder" | "lighter" | "100" | "200" | "300" | "400" | "500" | "600" | "700" | "800" | "900";
            fontFamily: string;
            fontStyle: "normal" | "italic" | "oblique";
            backgroundColor: string;
            strokeColor: string;
            strokeThickness: number;
            letterSpacing: number;
            dropShadow: boolean;
            dropShadowAlpha: number;
            dropShadowAngle: number;
            dropShadowBlur: number;
            dropShadowColor: string;
            dropShadowDistance: number;
            backgroundPadding: number;
            backgroundCornerRadius: number;
        };
        position?: [number, number] | undefined;
    };
    /**
     * Creates a subtitle manager from serialized data.
     *
     * @param data Serialized subtitle manager payload.
     * @returns The deserialized subtitle manager.
     */
    static deserialize(data: object): SubtitlesManager;
}