import { Chart, type Point } from 'chart.js';
import type { ZoomPluginOptions } from './options';
export type ScaleRange = {
    min: number;
    max: number;
};
export type OriginalLimits = {
    min: {
        scale?: number;
        options?: unknown;
    };
    max: {
        scale?: number;
        options?: unknown;
    };
};
export type OriginalScaleLimits = Record<string, OriginalLimits>;
export type UpdatedScaleLimits = Record<string, ScaleRange>;
export type HandlerFunctions = {
    click: (chart: Chart, event: MouseEvent, options: ZoomPluginOptions) => void;
    keydown: (chart: Chart, event: KeyboardEvent) => void;
    mousedown: (chart: Chart, event: MouseEvent, options: ZoomPluginOptions) => void;
    mousemove: (chart: Chart, event: MouseEvent, options: ZoomPluginOptions) => void;
    mouseup: (chart: Chart, event: MouseEvent, options: ZoomPluginOptions) => void;
    onZoomComplete: ({ chart }: {
        chart: Chart;
    }) => void;
    wheel: (chart: Chart, event: WheelEvent) => void;
};
export type HandlerName = keyof HandlerFunctions;
export type HandlerFunction = HandlerFunctions[HandlerName];
export type Handler = EventListener;
export type Handlers = Partial<Record<HandlerName, Handler>>;
export type HandlerTarget = Partial<Record<HandlerName, HTMLCanvasElement | Document>>;
export interface State {
    originalScaleLimits: OriginalScaleLimits;
    updatedScaleLimits: UpdatedScaleLimits;
    handlers: Handlers;
    targets: HandlerTarget;
    panDelta: Record<string, number>;
    dragging: boolean;
    panning: boolean;
    options: ZoomPluginOptions;
    dragStart?: MouseEvent;
    dragEnd?: MouseEvent;
    filterNextClick?: boolean;
    scale?: number | null;
    delta?: Point | null;
    panScales?: string[];
}
export declare function getState(chart: Chart): State;
export declare function removeState(chart: Chart): void;
//# sourceMappingURL=state.d.ts.map