import { SelectedNode, ZoomWindow } from '../../shared/kernel';
import { Switchable } from '../../shared/options';
export interface SelectionItemStyle {
    stroke?: string;
    strokeWidth?: number;
    /** Size multiplier for markers of selected nodes. */
    sizeRatio?: number;
}
export interface SelectionOptions extends Switchable {
    /**
     * single — each selection replaces the previous one;
     * multiple — boxes and clicks accumulate the selection (clicking a node toggles it).
     */
    mode?: 'single' | 'multiple';
    /** Drag selection box (multiple mode only, disabled by default). */
    boxSelect?: boolean;
    /** Appearance of selected nodes. */
    itemStyle?: SelectionItemStyle;
    /** Opacity of unselected nodes while a selection is active (0.45 by default). */
    inactiveOpacity?: number;
}
/** One picked-out datum — the shape the widgets hand back for both events. */
export type SelectedItem = SelectedNode;
export interface SelectionChangeEvent {
    items: SelectedItem[];
}
export type NodeClickEvent = SelectedNode;
export interface ZoomChangeEvent {
    /** Visible domain fractions 0..1 per axis. */
    x: ZoomWindow;
    y: ZoomWindow;
}
export interface LegendItemClickEvent {
    /** Series or a pie/donut item (of the form 'seriesId#index'). */
    seriesId: string;
    /** Visibility after the click. */
    visible: boolean;
}
/** Chart event listeners. */
export interface ChartListeners {
    selectionChange?: (event: SelectionChangeEvent) => void;
    nodeClick?: (event: NodeClickEvent) => void;
    zoomChange?: (event: ZoomChangeEvent) => void;
    legendItemClick?: (event: LegendItemClickEvent) => void;
}