/**
 * Inline symbols (`:icon[alt]{…}`, #1058, DESIGN §12.5): the size of the
 * box each kind takes on a line. The box stands on the baseline (or reaches
 * `drop` ems below it, #1248); its
 * height is the text's capital height (0.75 em, as a swatch's side) unless
 * `size` gives it in ems. A picture keeps its proportions, a glyph is set
 * at the size whose capitals are that high and takes its advance, and a
 * line sample is twice as long as it is high, its stroke at half height.
 */
import type { InlineIcon } from '../parse/index.js';
import type { ResolvedResourceBlock, VDTInlineIcon } from '../vdt.js';
/** The height of a capital, in ems: an icon's default height. */
export declare const ICON_CAP_EM = 0.75;
/** The symbol `icon` measured against the text's `font` (a CSS font
 *  string): its box and what the painters need. `color` is the tint as
 *  resolved (a hex), `''` for none. */
export declare function measureInlineIcon(icon: InlineIcon, color: string, font: string): VDTInlineIcon;
/** The dash pattern of a line sample (px, on and off), none when solid.
 *  A dotted line is drawn with round caps: dots of zero length. */
export declare function iconLineDash(icon: Pick<VDTInlineIcon, 'line' | 'strokePx'>): number[] | undefined;
/** The inline symbols a resource block paints (#1058): in its caption,
 *  its notes, its labels and its table's cells. What a renderer that
 *  embeds pictures up front (the PDF) reads. */
export declare function resourceBlockIcons(rb: ResolvedResourceBlock | undefined): VDTInlineIcon[];
/** Where a symbol is drawn on its segment: its box from the segment's left
 *  edge `x` and the line's `baseline`, the baseline a glyph is set on (the
 *  line's, lowered by the icon's drop), and, for a line sample, the stroke's
 *  ends at half height. */
export declare function inlineIconBox(icon: VDTInlineIcon, x: number, baseline: number): {
    x: number;
    y: number;
    width: number;
    height: number;
    strokeY: number;
    baseline: number;
};
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