import type { PPTImageElement, ImageClipDataRange } from '../../types/slides';
export declare const FRAME_LAYOUTS: readonly ['rect', 'roundRect', 'ellipse', 'two', 'three', 'four', 'six', 'nine', 'hero'];
export type FrameLayout = typeof FRAME_LAYOUTS[number];
export declare const FRAME_PLACEHOLDER: string;
/** Cell rectangles in fractional grid units. Mixed-span hero keeps a large left cell. */
export declare function frameCells(layout: FrameLayout): number[][];
export declare function coverRange(sourceWidth: number, sourceHeight: number, width: number, height: number): ImageClipDataRange;
export declare function createPhotoFrames(layout: FrameLayout, width: number, height: number, gutter?: number, name?: string): PPTImageElement[];
/** Uses current bounds, so moved/resized native groups keep their current location. */
export declare function layoutPhotoFrames(elements: PPTImageElement[], gutter: number): PPTImageElement[];
export declare function fillPhotoFrame(element: PPTImageElement, src: string, sourceWidth: number, sourceHeight: number): PPTImageElement;