@deltares/fews-web-oc-charts/dist/Visitors/zoomHandler.d.ts

FEWS Chart Library

import type { Axes } from '../Axes/axes.js';
import { CartesianAxes, D3Selection, ModifierKey } from '../index.js';
import type { Visitor } from './visitor.js';
export declare const ZoomMode: {
    X: string;
    XY: string;
    Y: string;
};
export type ZoomMode = (typeof ZoomMode)[keyof typeof ZoomMode];
export declare enum WheelMode {
    X = 0,
    XY = 1,
    Y = 2,
    NONE = 3
}
export interface ZoomHandlerOptions {
    wheelMode: WheelMode;
    sharedZoomMode: ZoomMode;
    scrollModifierKey: ModifierKey;
}
type BrushGroup = D3Selection<SVGElement, null>;
export declare class ZoomHandler implements Visitor {
    private brushStartPoint;
    private axes;
    private mode;
    private options;
    private readonly MINMOVE;
    private lastPoint;
    constructor(wheelMode?: WheelMode, scrollModifierKey?: ModifierKey);
    constructor(options?: Partial<ZoomHandlerOptions>);
    visit(axis: Axes): void;
    updateOptions(options: Partial<ZoomHandlerOptions>): void;
    createHandler(axis: CartesianAxes): void;
    private updateWheelMode;
    private dispatchZoomEvent;
    private updateZoomAxisScales;
    zoom(axis: CartesianAxes, factor: number, point: [number, number]): void;
    initSelection(axis: Axes, mouseGroup: any, brushGroup: BrushGroup, point: [number, number]): void;
    updateSelection(axis: Axes, brushGroup: BrushGroup, point: [number, number]): void;
    private updateAxisScales;
    endSelection(axis: CartesianAxes, mouseGroup: any, brushGroup: BrushGroup, point: [number, number]): void;
    resetZoom(axis: Axes): void;
    redraw(): void;
}
export {};