import type { DocumentMatrix } from './contracts.js';
export interface ImagePaintPlacement {
    scaleMode: 'fill' | 'fit' | 'crop' | 'tile';
    scale?: number;
    /** Natural image pixels to layer-local pixels. Active in crop mode; resize keeps these coordinates. */
    imageTransform?: DocumentMatrix;
}
export interface ImagePaintBox {
    width: number;
    height: number;
}
export interface ImagePaintGeometry {
    matrix: DocumentMatrix;
    pattern: ImagePaintBox;
    tiled: boolean;
}
export declare function isImageTransform(value: unknown): value is DocumentMatrix;
/** One projection for box, vector, text and export; explicit crop matrices never resize the asset. */
export declare function imagePaintGeometry(paint: ImagePaintPlacement, asset: ImagePaintBox, box: ImagePaintBox): ImagePaintGeometry;
/** A different asset starts from its mode default; selecting the same asset preserves the current crop. */
export declare function replaceImagePaintAsset<T extends ImagePaintPlacement & {
    assetId: string;
}>(paint: T, assetId: string): T;