function-curve-editor/dist/FunctionCurveEditor.d.ts

A function curve editor widget / web component

import { UniFunction, InterpolationMethod } from "commons-math-interpolation";
export interface Point {
    x: number;
    y: number;
}
export declare const enum ZoomMode {
    x = 0,
    y = 1,
    xy = 2
}
export { InterpolationMethod };
export interface EditorState {
    knots: Point[];
    xMin: number;
    xMax: number;
    yMin: number;
    yMax: number;
    extendedDomain: boolean;
    relevantXMin?: number;
    relevantXMax?: number;
    gridEnabled: boolean;
    snapToGridEnabled: boolean;
    xAxisUnit?: string;
    yAxisUnit?: string;
    interpolationMethod: InterpolationMethod;
    primaryZoomMode: ZoomMode;
    focusShield: boolean;
    customPaintFunction?: CustomPaintFunction;
}
export type CustomPaintFunction = (pctx: CustomPaintContext) => void;
export interface CustomPaintContext {
    pass: number;
    eState: EditorState;
    ctx: CanvasRenderingContext2D;
    mapLogicalToCanvasXCoordinate: (lx: number) => number;
    mapLogicalToCanvasYCoordinate: (ly: number) => number;
    drawFunctionCurve: (uniFunction: UniFunction, lxMin: number, lxMax: number, color: string) => void;
}
export declare class Widget {
    private wctx;
    constructor(canvas: HTMLCanvasElement, connected?: boolean);
    setEventTarget(eventTarget: EventTarget): void;
    setConnected(connected: boolean): void;
    requestRefresh(): void;
    addEventListener(type: string, listener: EventListener): void;
    removeEventListener(type: string, listener: EventListener): void;
    getEditorState(): EditorState;
    setEditorState(eState: Partial<EditorState>): void;
    getFunction(): (x: number) => number;
    getRawHelpText(): string[];
    getFormattedHelpText(): string;
    clipboardCopyEventHandler(event: ClipboardEvent): void;
    clipboardPasteEventHandler(event: ClipboardEvent): void;
}
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