import type { DmlColor, DmlColorWithMods } from './colors';
/** Relative rectangle (0..100000-thousandths). */
export interface RelativeRect {
    l?: number;
    t?: number;
    r?: number;
    b?: number;
}
export interface GradientStop {
    /** Position along the gradient (0..100000). */
    pos: number;
    color: DmlColorWithMods;
}
export type GradientLineDir = {
    kind: 'lin';
    ang: number;
    scaled?: boolean;
} | {
    kind: 'path';
    pathType: 'shape' | 'circle' | 'rect';
    tileRect?: RelativeRect;
};
export type TileFlip = 'x' | 'y' | 'xy' | 'none';
export interface TileFill {
    tx?: number;
    ty?: number;
    sx?: number;
    sy?: number;
    flip?: TileFlip;
    algn?: 'tl' | 't' | 'tr' | 'l' | 'ctr' | 'r' | 'bl' | 'b' | 'br';
}
/** Blip-source effects. The full ECMA-376 list is preserved here; `kind` discriminates. */
export type BlipEffect = {
    kind: 'biLevel';
    thresh: number;
} | {
    kind: 'blur';
    rad: number;
    grow?: boolean;
} | {
    kind: 'clrChange';
    useA?: boolean;
    clrFrom: DmlColor;
    clrTo: DmlColor;
} | {
    kind: 'clrRepl';
    color: DmlColor;
} | {
    kind: 'duotone';
    colors: [DmlColor, DmlColor];
} | {
    kind: 'grayscl';
} | {
    kind: 'lum';
    bright?: number;
    contrast?: number;
} | {
    kind: 'tint';
    hue?: number;
    amt?: number;
} | {
    kind: 'alphaModFix';
    amt: number;
};
export interface Blip {
    embedRId?: string;
    linkRId?: string;
    cstate?: 'email' | 'screen' | 'print' | 'hqprint';
    effects?: BlipEffect[];
}
/** Discriminated union for any fill that can attach to a shape. */
export type Fill = {
    kind: 'noFill';
} | {
    kind: 'solidFill';
    color: DmlColorWithMods;
} | {
    kind: 'gradFill';
    flip?: TileFlip;
    rotWithShape?: boolean;
    stops: GradientStop[];
    lineDir?: GradientLineDir;
} | {
    kind: 'blipFill';
    blip: Blip;
    tile?: TileFill;
    stretch?: {
        fillRect?: RelativeRect;
    };
    srcRect?: RelativeRect;
    dpi?: number;
    rotWithShape?: boolean;
} | {
    kind: 'pattFill';
    preset: string;
    fgClr?: DmlColorWithMods;
    bgClr?: DmlColorWithMods;
} | {
    kind: 'grpFill';
};
export declare const makeNoFill: () => Fill;
export declare const makeSolidFill: (color: DmlColorWithMods) => Fill;
export declare const makeGradientFill: (opts: {
    stops: GradientStop[];
    flip?: TileFlip;
    rotWithShape?: boolean;
    lineDir?: GradientLineDir;
}) => Fill;
export declare const makePatternFill: (opts: {
    preset: string;
    fgClr?: DmlColorWithMods;
    bgClr?: DmlColorWithMods;
}) => Fill;
/** Excel's preset pattern names (54 entries, ECMA-376 §20.1.10.50; matches openpyxl). */
export declare const PRESET_PATTERN_NAMES: ReadonlyArray<string>;