import type { DecorationSize, LegendDecorationItem } from './types';
type LegendOrientation = `horizontal` | `vertical`;
export type LegendItemExtent = Partial<DecorationSize>;
export type LegendTrackSuggestionConfig = {
    item_count: number;
    orientation: LegendOrientation;
    available_edge_length: number;
    item_extents?: readonly (LegendItemExtent | undefined)[];
    estimated_item_extent?: LegendItemExtent;
    gap?: number;
};
type LegendGridItem = {
    label: string;
    legend_group?: string;
};
type LegendGridCell = {
    kind: `filter`;
} | {
    kind: `empty`;
} | {
    kind: `group`;
    group: string;
} | {
    kind: `item`;
    item_idx: number;
};
type LegendDecorationConfig = {
    axis_clearance?: number;
    layout_tracks?: number | `auto`;
    layout?: LegendOrientation;
    item_extents?: readonly (LegendItemExtent | undefined)[];
    estimated_item_extent?: LegendItemExtent;
    collapsed_groups?: ReadonlySet<string>;
    filterable?: boolean;
    filter_threshold?: number;
    filter_query?: string;
};
export declare function get_legend_grid_cells({ items, collapsed_groups, filter_query, show_filter, }: {
    items: readonly LegendGridItem[];
    collapsed_groups?: ReadonlySet<string>;
    filter_query?: string;
    show_filter?: boolean;
}): LegendGridCell[];
export declare const create_legend_decoration_item: ({ enabled, footprint, items, config, }: {
    enabled: boolean;
    footprint: DecorationSize;
    items: readonly LegendGridItem[];
    config?: LegendDecorationConfig | null;
}) => LegendDecorationItem | null;
export declare const resolve_legend_layout_tracks: (layout_tracks: number | `auto` | undefined, placement?: {
    layout_tracks?: number;
} | null) => number | `auto` | undefined;
export declare const suggest_legend_tracks: ({ item_count, orientation, available_edge_length, item_extents, estimated_item_extent, gap, }: LegendTrackSuggestionConfig) => number;
export {};