import { fabric } from 'fabric';
import { VLMSample, Region } from '../../types';
interface UseCanvasSetupParams {
    sample: VLMSample | undefined;
    image: fabric.Image | undefined;
    onImageLoad?: VoidFunction;
    canvasRef: React.MutableRefObject<HTMLCanvasElement | null>;
    containerRef: React.MutableRefObject<HTMLDivElement | null>;
    canvasInitializedRef: React.MutableRefObject<boolean>;
    bgImagePositionRef: React.MutableRefObject<{
        left: number;
        top: number;
    }>;
    bgImageSizeRef: React.MutableRefObject<{
        width: number;
        height: number;
    }>;
    rectMapRef: React.MutableRefObject<Map<fabric.Rect, Region>>;
    updateTextLayersRef: React.MutableRefObject<((rect: fabric.Rect, region: Region) => void) | null>;
    onRectPositionUpdated?: (scale: number) => void;
    setCanvas: React.Dispatch<React.SetStateAction<fabric.Canvas | undefined>>;
    setImage: React.Dispatch<React.SetStateAction<fabric.Image | undefined>>;
    setScale: React.Dispatch<React.SetStateAction<number>>;
    setBgImagePosition: React.Dispatch<React.SetStateAction<{
        left: number;
        top: number;
    }>>;
    setLoading: React.Dispatch<React.SetStateAction<boolean>>;
}
/**
 * Hook for canvas setup and image initialization
 * @param params - Canvas setup configuration parameters
 * @returns updateCanvas function to update canvas and image positioning
 */
export declare const useCanvasSetup: ({ sample, image, onImageLoad, canvasRef, containerRef, canvasInitializedRef, bgImagePositionRef, bgImageSizeRef, rectMapRef, updateTextLayersRef, onRectPositionUpdated, setCanvas, setImage, setScale, setBgImagePosition, setLoading, }: UseCanvasSetupParams) => {
    updateCanvas: () => void;
};
export {};