ue-too/input-interpretation/input-state-machine/touch-input-context.d.ts

pan, zoom, and rotate your html canvas

import { Point } from "../../utils/misc";
import { TouchPoints } from "./touch-input-state-machine";
import { RawUserInputPublisher } from "../../input-interpretation/raw-input-publisher";
import { BaseContext } from "../../being/interfaces";
import { CanvasOperator } from "./kmt-input-context";
export interface TouchContext extends BaseContext {
    addTouchPoints: (points: TouchPoints[]) => void;
    removeTouchPoints: (idents: number[]) => void;
    getCurrentTouchPointsCount: () => number;
    getInitialTouchPointsPositions: (idents: number[]) => TouchPoints[];
    updateTouchPoints: (pointsMoved: TouchPoints[]) => void;
    notifyOnPan: (delta: Point) => void;
    notifyOnZoom: (zoomAmount: number, anchorPoint: Point) => void;
    alignCoordinateSystem: boolean;
    canvas: CanvasOperator;
}
export declare class TouchInputTracker implements TouchContext {
    private _inputPublisher;
    private _touchPointsMap;
    private _canvas;
    private _alignCoordinateSystem;
    constructor(canvas: CanvasOperator, inputPublisher: RawUserInputPublisher);
    addTouchPoints(points: TouchPoints[]): void;
    removeTouchPoints(identifiers: number[]): void;
    getCurrentTouchPointsCount(): number;
    getInitialTouchPointsPositions(idents: number[]): TouchPoints[];
    updateTouchPoints(pointsMoved: TouchPoints[]): void;
    notifyOnPan(delta: Point): void;
    notifyOnZoom(zoomAmount: number, anchorPoint: Point): void;
    get alignCoordinateSystem(): boolean;
    set alignCoordinateSystem(value: boolean);
    get canvas(): CanvasOperator;
    cleanup(): void;
    setup(): void;
}