import { ShallowRef } from 'vue';
declare const _default: (canvasRef: ShallowRef<HTMLElement | null>) => {
    viewportStyles: import('vue').ComputedRef<{
        width: number;
        height: number;
        left: number;
        top: number;
    }>;
    dragViewport: (e: MouseEvent) => void;
};
export default _default;
