import type { TextAlign, TextAlignVertical } from '../types/slides';
export type CanvasTextPaintOptions = {
    html: string;
    x: number;
    y: number;
    width: number;
    height: number;
    defaultFontFamily: string;
    defaultColor: string;
    defaultSize?: number;
    lineHeight?: number;
    letterSpacing?: number;
    paragraphSpace?: number;
    inset?: [number, number, number, number];
    vAlign?: TextAlignVertical;
    align?: TextAlign;
    fit?: boolean;
    opacity?: number;
    vertical?: boolean;
    shadow?: {
        h: number;
        v: number;
        blur: number;
        color: string;
    };
    invalidate?: () => void;
};
/**
 * Paint ProseMirror HTML without mounting DOM. Pretext owns Unicode-aware
 * wrapping; Canvas owns glyph shaping and rasterization at the final DPR.
 */
export declare const paintRichText: (ctx: CanvasRenderingContext2D, options: CanvasTextPaintOptions) => number;