import { IDMLSpreadPackageContext } from '../SpreadPackage.js';
import { GeometricSprite, GeometricSpriteOpts } from './GeometricSprite.js';
import { CornerOptions } from './Rectangle.js';
/** Vertical text alignment within a frame (InDesign `VerticalJustification`). */
export type VerticalJustification = 'top' | 'center' | 'bottom' | 'justify';
/**
 * Parsed `<TextFramePreference>` — the frame-level text layout settings, read
 * abstractly (typed fields) rather than by poking the raw XML at call sites. Only
 * the fields the converter consumes are modeled; `sourceElement` is retained so
 * {@link TextFrame.serialize} round-trips the attributes we don't model.
 */
export type TextFramePreference = {
    /** Vertical text alignment (default `'top'`). */
    verticalJustification: VerticalJustification;
    /** First-baseline offset mode, e.g. `'Ascent'`/`'AscentOffset'` (informational). */
    firstBaselineOffset?: string;
    /** Minimum first-baseline offset in pt. */
    minimumFirstBaselineOffset?: number;
    /** The raw element, kept so serialize preserves unmodeled attributes. */
    sourceElement: Element;
};
export declare class TextFrame extends GeometricSprite {
    private parentStoryId;
    textFramePreference?: TextFramePreference;
    private cornerOptions?;
    constructor(id: string, parentStoryId: string, opts: GeometricSpriteOpts & {
        textFramePreference?: TextFramePreference;
        cornerOptions?: CornerOptions;
    }, context: IDMLSpreadPackageContext);
    /** Per-corner options — a text frame is a rectangular graphic frame too. */
    getCornerOptions(): CornerOptions | undefined;
    getDefaultFillColor(): import("../Color.js").Color | undefined;
    getBBox(): import("../../types/index.js").GeometricBounds;
    setBBox(x: number, y: number, width: number, height: number): void;
    getStory(): import("../Story.js").Story | undefined;
    /**
     * The frame's vertical text alignment as a 0..1 fraction (0 top, 0.5 center,
     * 1 bottom). Defaults to top. `justify` (distribute lines) has no core equivalent
     * for the anchor → treated as top (see {@link isVerticalJustify}).
     */
    getVerticalAlign(): number;
    /**
     * `VerticalJustification="JustifyAlign"` — InDesign distributes the lines to fill
     * the frame height (equal gaps, first line at top, last at bottom). Core has no
     * such mode, so the converter reproduces it by WIDENING the line advance (see
     * idml2serial). Rendered top-anchored (getVerticalAlign stays 0).
     */
    isVerticalJustify(): boolean;
    serialize(): import("../../util/xml.js").ElementNode;
    /** Parse a `<TextFramePreference>` element into its typed representation. */
    static parseTextFramePreference(element: Element): TextFramePreference;
    static parseElement(element: Element, context: IDMLSpreadPackageContext): TextFrame;
}
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