import type { CanvasGeometry } from './img-cropper-worker.svelte';
import type { CropperCanvas, CropperImage, CropperSelection } from 'cropperjs';
type Rect = {
    left: number;
    top: number;
    right: number;
    bottom: number;
};
export declare const detectMimeFromUrl: (url: string) => string | null;
export declare const computeImageScale: (transform: number[]) => number;
export declare const computeNaturalOutputSize: (params: {
    displayWidth: number;
    displayHeight: number;
    imageScale: number;
}) => {
    width: number;
    height: number;
};
export declare const computeLocalAABB: (params: {
    matrix: number[];
    width: number;
    height: number;
}) => Rect;
export declare const rectCoversRect: (inner: Rect, outer: Rect, tolerance?: number) => boolean;
export declare const handleCoverCheck: (params: {
    event: Event;
    image: CropperImage;
    canvas: CropperCanvas;
}) => void;
export declare const fitInContainer: (params: {
    ratio: number;
    containerWidth: number;
    containerHeight: number;
}) => {
    width: number;
    height: number;
};
/**
 * Applies the minimum canvas size by scaling the whole rect, bounded by `maxWidth` / `maxHeight`, and rounds to whole pixels.
 * The minimums are soft: a container smaller than them wins, and the returned canvas is smaller than `MIN_CANVAS_WIDTH` / `MIN_CANVAS_HEIGHT`.
 */
export declare const resolveCanvasGeometry: (params: {
    aspectRatio: number | null;
    width: number;
    height: number;
    maxWidth: number;
    maxHeight: number;
}) => CanvasGeometry;
export declare const handleSelectionBoundary: (params: {
    event: Event;
    selection: CropperSelection;
    canvas: CropperCanvas;
}) => void;
export {};