import { ParagraphOutput } from '../../controllers/Story';
export type EffectiveTextStyle = {
    fontFamily: string;
    fontSize: number;
    fontWeight: number;
    fontStyle: string;
    /** Raw IDML FontStyle name (e.g. "Bold"), used to resolve the exact font binary. */
    styleName?: string;
    letterSpacing: number;
    lineHeight: number;
    color: string;
    /** IDML `Capitalization="AllCaps"` -> renders uppercase (serial `uppercase` prop). */
    uppercase: boolean;
    /** IDML character `Underline`. A thick, offset underline is InDesign's idiom for a
     * per-line highlight bar ("Bauchbinde") — see buildTextElements' line-background emit. */
    underline: boolean;
    /** Underline stroke thickness in px (pt at 72dpi). */
    underlineWeight?: number;
    /** Underline position relative to the baseline in px (negative = above the baseline). */
    underlineOffset?: number;
    /** Underline stroke color as hex (own swatch — e.g. Paper -> white). */
    underlineColor?: string;
    /** IDML character stroke (outlined text): stroke color as hex + weight in px. Core paints
     * `<text stroke stroke-width>`; we don't emit it today, so outlined text is invisible. */
    strokeColor?: string;
    strokeWeight?: number;
    /** IDML character `StrikeThru` — renders as `text-decoration: line-through`. */
    strikeThrough?: boolean;
    /** IDML paragraph shading (`ParagraphShadingOn`) — a fill drawn behind the WHOLE
     * paragraph. Paragraph-level, resolved from the applied/local paragraph style and
     * carried on every run's style; emitted as a line-bound background block behind the
     * text element (see buildTextElements' paragraph-shading emit). Offsets in px (pt@72). */
    paragraphShading?: {
        color: string;
        topOffset: number;
        bottomOffset: number;
        leftOffset: number;
        rightOffset: number;
    };
    /** IDML paragraph `Hyphenation="true"` — enable automatic hyphenation. Emitted as the
     * serial `hyphenation` flag + `linebreakingAlgorithm: 'knuth-plass'` (hyphenation only
     * works under knuth-plass). Only set when a hyphenator for the language is available. */
    hyphenate?: boolean;
    /** BCP-47 tag for hyphenation, mapped from IDML `AppliedLanguage` (e.g. 'de', 'en-us'). */
    hyphenationLanguage?: string;
    /** IDML paragraph `RuleAbove`/`RuleBelow` — a colored rule line above the first line /
     * below the last line of the paragraph, spanning the column width. Emitted as a
     * line-bound rectangle (see buildTextElements' paragraph-rule emit). Weight/offset in px. */
    paragraphRuleAbove?: {
        color: string;
        weight: number;
        offset: number;
    };
    paragraphRuleBelow?: {
        color: string;
        weight: number;
        offset: number;
    };
    /** IDML `HorizontalScale` as a ratio (99% → 0.99). Scales glyph advances/ink
     * horizontally — designers use ±1–2% to fit a line exactly, so it decides WRAP, not just
     * looks. Carried into measurement (probe features `scale`) and the serial (element
     * `fontStretch` / richtext `format.scale`); core scales measurement + rendered glyphs. */
    horizontalScale: number;
};
export declare function mapIndesignLanguageToBCP47(applied: string | undefined): string | undefined;
export declare const ALIGN_TO_FRACTION: Record<string, number>;
export declare const JUSTIFY_ALIGNS: Set<string>;
export declare function weightFromFontStyle(fontStyle?: string): number;
export declare function italicFromFontStyle(fontStyle?: string): string;
export declare function effectiveTextStyle(paragraph: ParagraphOutput, feature: ParagraphOutput['features'][number], defaultFont: string, rootDefaults?: {
    hyphenation?: boolean;
    language?: string;
}): EffectiveTextStyle;
export declare const LETTER_SPACING_TOLERANCE = 0.03;
export declare const sameLetterSpacing: (a: number, b: number) => boolean;
export declare const sameHorizontalScale: (a: number, b: number) => boolean;
export declare const sameTextStyle: (a: EffectiveTextStyle, b: EffectiveTextStyle) => boolean;
export declare const LEADING_TOLERANCE = 0.5;
export declare const sameLeading: (a: EffectiveTextStyle, b: EffectiveTextStyle) => boolean;
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