/**
 * Chinese annotations on the canvas (#193, #194, #195): the marks the
 * layout set on a line (`VDTLine.marks`: emphasis dots, proper-name and
 * book-title lines), a ruby base's reading, a warichu note's rows and the
 * kanbun marks of a character (#430). All
 * of it is placed by the layout in the flow frame of the line, so on a
 * vertical page it is painted inside the page's flow transform as the text
 * is, and text runs go through {@link fillFlowText} (cells upright, Latin
 * sideways).
 */
import type { VDTAnnotationRun, VDTKunten, VDTLine, VDTLineMark, VDTLineSegment, VDTRuby, VDTWarichu } from '../vdt.js';
type Ctx = CanvasRenderingContext2D;
/** A sesame dot (﹅): a lens `size` long and 0.3 of it wide,
 *  leaning a third of a right angle, centred on the origin. The lens
 *  stands the same way on the sheet in horizontal and vertical text (the
 *  glyph U+FE45 has no vertical form; CSS `text-emphasis: sesame` draws it
 *  upright in `vertical-rl`): on a vertical page, whose flow is painted a
 *  quarter turn clockwise, `vertical` turns the lens a quarter turn back. */
export declare function sesamePath(size: number, vertical?: boolean): {
    x: number;
    y: number;
}[][];
/** The points of a wave along a line mark, `step` px apart. */
export declare function wavePoints(mark: Pick<VDTLineMark, 'x' | 'y' | 'length' | 'amplitude' | 'wavelength'>, x0?: number, y0?: number): {
    x: number;
    y: number;
}[];
/** The centres of the dots of a `dotted` line, along it from its start
 *  (see `VDTLineMark.gap`). */
export declare function dottedCentres(mark: Pick<VDTLineMark, 'x' | 'length' | 'size' | 'gap'>, x0?: number): number[];
/** Trace a rectangle whose left and right ends are rounded by their own
 *  radii (a highlight band, #888). */
export declare function bandPath(ctx: Ctx, x: number, y: number, w: number, h: number, rl: number, rr: number): void;
/** Paint the highlight bands of a line (`VDTLine.highlights`, #888), under
 *  its text: called before the line is painted. */
export declare function paintLineHighlights(ctx: Ctx, line: VDTLine): void;
/** Paint the marks of a line (`VDTLine.marks`) in `color` unless a mark
 *  has its own. On a vertical page a sesame turns back against the flow
 *  (see {@link sesamePath}). */
export declare function paintLineMarks(ctx: Ctx, line: VDTLine, color: string): void;
/** Paint the readings of a chip's ruby words (`VDTChip.readings`, #1244);
 *  `x` is the chip box's left edge. */
export declare function paintChipReadings(ctx: Ctx, runs: readonly VDTAnnotationRun[], x: number, baseline: number, color: string): void;
/** Paint a ruby base's reading; `x` is where the base's segment starts. */
export declare function paintRuby(ctx: Ctx, ruby: VDTRuby, x: number, baseline: number, textColor: string): void;
/** Paint a character's kanbun marks (返り点, 送り仮名, 竪点, #430); `x` is
 *  where its segment starts. */
export declare function paintKunten(ctx: Ctx, kunten: VDTKunten, x: number, baseline: number, textColor: string): void;
/** Paint a warichu note's rows; `x` is where the note's segment starts. */
export declare function paintWarichu(ctx: Ctx, warichu: VDTWarichu, x: number, baseline: number, textColor: string): void;
/** Paint a footnote marker set in the line gap (`VDTLineSegment.sideMarker`,
 *  JLReq §4.2.3); `x` is where its segment starts. */
export declare function paintSideMarker(ctx: Ctx, marker: NonNullable<VDTLineSegment['sideMarker']>, x: number, baseline: number, color: string): void;
export {};
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