react-pixi-plot/dist/PlotContext.js

A React component rendering a zoomable and draggable PIXI.js scene. Intended to render 2d plots

import React from 'react';
const defaultState = {
    draggablePosition: { x: 0, y: 0 },
    zoomablePosition: { x: 0, y: 0 },
    zoomableScale: { x: 1, y: 1 },
    appHeight: 0,
    appWidth: 0,
};
const reducer = (state = defaultState, action) => {
    switch (action.type) {
        case 'drag':
            return Object.assign({}, state, { draggablePosition: action.payload.position });
        case 'zoom':
            return Object.assign({}, state, { zoomablePosition: action.payload.position, zoomableScale: action.payload.scale });
    }
    return state;
};
const DomPlotContext = React.createContext({});
const PlotContextProvider = (props) => {
    const [state, dispatch] = React.useReducer(reducer, defaultState);
    state.appHeight = props.appHeight;
    state.appWidth = props.appWidth;
    const value = { state, dispatch };
    return React.createElement(DomPlotContext.Provider, { value: value }, props.children);
};
const PixiPlotContext = React.createContext({});
export { DomPlotContext, PlotContextProvider, PixiPlotContext };
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