export interface UseVirtualScrollOptions<T> {
    /** Data array */
    data: T[];
    /** Row height - fixed number or function */
    rowHeight?: number | ((row: T, index: number) => number);
    /** Overscan - extra rows to render outside viewport */
    overscan?: number;
    /** Minimum buffer rows to maintain */
    minBufferRows?: number;
    /** Minimum rows to render */
    minRenderRows?: number;
}
export interface VirtualScrollResult<T> {
    /** Ref for the scroll container */
    scrollContainerRef: React.RefObject<HTMLDivElement | null>;
    /** Current scroll position */
    scrollTop: number;
    /** Total height of all rows (for canvas sizing) */
    totalHeight: number;
    /** Visible rows to render */
    visibleRows: Array<{
        row: T | null;
        rowIndex: number;
        offset: number;
        height: number;
    }>;
    /** Row heights array (null for constant height) */
    heights: number[] | null;
    /** Row offsets array (null for constant height) */
    offsets: number[] | null;
    /** Scroll handler (RAF-throttled) */
    handleScroll: (event: React.UIEvent<HTMLDivElement>) => void;
    /** Scroll to specific row */
    scrollToRow: (rowIndex: number, align?: "start" | "center" | "end") => void;
    /** Get row height by index */
    getRowHeight: (index: number) => number;
    /** Get row offset by index */
    getRowOffset: (index: number) => number;
    /** Whether using constant height mode */
    isConstantHeight: boolean;
    /** Constant height value (when isConstantHeight is true) */
    constantHeight: number;
}
export declare function useVirtualScroll<T>(options: UseVirtualScrollOptions<T>): VirtualScrollResult<T>;
export default useVirtualScroll;
//# sourceMappingURL=useVirtualScroll.d.ts.map