import { CellAddress, CellRange } from '../models/Cell';
/**
 * Selection behavior. `None` disables selection; `Cell`/`Row`/`Column` select a
 * single item; the `*Range` variants extend to a contiguous block.
 */
export type SelectionMode = 'None' | 'Cell' | 'CellRange' | 'Row' | 'RowRange' | 'Column' | 'ColumnRange';
export interface GridBounds {
    rowCount: number;
    colCount: number;
}
/**
 * Tracks the active cell and the anchor it extends from. The highlighted
 * rectangle is derived from those plus the mode, so the active cell keeps its
 * real column even in Row mode (where the whole row is highlighted).
 */
export declare class SelectionModel {
    private mode;
    private active;
    private anchor;
    constructor(mode?: SelectionMode);
    getMode(): SelectionMode;
    setMode(mode: SelectionMode): boolean;
    getActive(): CellAddress | null;
    /** The highlighted rectangle for the current mode, or null if nothing is selected. */
    getRange(bounds: GridBounds): CellRange | null;
    /** Move the active cell. With `extend` (and a range mode) the anchor stays put. */
    moveTo(cell: CellAddress, extend: boolean): boolean;
    clear(): boolean;
}