import { RenderContext } from './RenderContext';
import { CellRenderer } from './CellRenderer';
/**
 * Keeps one pooled `.apg-row` per visible row and one pooled `.apg-cell` per
 * visible column inside it. On each pass it releases rows and cells that left
 * the range and reuses them for the ones that entered — the DOM never grows
 * past the visible window plus its buffer. Group-header rows take a separate
 * path: a sticky label plus aggregate cells instead of data cells.
 */
export declare class RowRenderer {
    private canvas;
    private cells;
    private active;
    private rowClasses;
    private rowPool;
    constructor(canvas: HTMLElement, cells: CellRenderer);
    render(ctx: RenderContext): void;
    private repositionRow;
    clear(): void;
    private acquireRow;
    private fillGroup;
    private fillCells;
    private releaseRow;
    private applyRowStyle;
}