@thi.ng/imago/utils.d.ts

JSON & API-based declarative and extensible image processing trees/pipelines

import type { Maybe } from "@thi.ng/api";
import type { Metadata } from "sharp";
import { type Color, type Dim, type Gravity, type IntBufferLike, type Position, type Sides, type Size, type SizeRef, type SizeUnit } from "./api.js";
export declare const isIntBufferLike: (x: any) => x is IntBufferLike;
export declare const ensureSize: (meta: Metadata) => false;
export declare const coerceColor: (col: Color) => string | {
    r: number;
    g: number;
    b: number;
    alpha?: number;
};
/**
 *
 * @remarks
 * The given `size` MUST already be resolved (in pixels), e.g. via an earlier
 * call to {@link computeSize}. `parentSize` is also in pixels.
 *
 * @param size
 * @param parentSize
 * @param opts
 */
export declare const positionOrGravity: ([w, h]: Dim, parentSize: Dim, { pos, gravity, origin, ref, unit, }: {
    pos?: Position;
    gravity?: Gravity;
    origin?: Gravity;
    ref?: SizeRef;
    unit?: SizeUnit;
}) => {
    gravity: string;
    left?: undefined;
    top?: undefined;
} | {
    left: Maybe<number>;
    top: Maybe<number>;
    gravity?: undefined;
} | undefined;
export declare const gravityFlags: (gravity: Gravity) => boolean[];
export declare const gravityPosition: (gravity: Gravity, [w, h]: Dim, [parentW, parentH]: Dim) => number[];
export declare const refSize: ([w, h]: Dim, ref?: SizeRef) => Dim;
export declare const computeSize: (size: Size, curr: Dim, ref?: SizeRef, unit?: SizeUnit) => Dim;
export declare const computeSizeWithAspect: (size: number, [w, h]: Dim, aspect: number, unit?: SizeUnit, clamp?: boolean) => Dim;
export declare const computeMargins: (size: Size | Sides, curr: Dim, ref?: SizeRef, unit?: SizeUnit) => Sides;
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