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This commit is contained in:
michalcourson
473
Assets/web/src/App.js
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473
Assets/web/src/App.js
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/*
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==============================================================================
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This file is part of the JUCE framework examples.
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Copyright (c) Raw Material Software Limited
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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to use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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==============================================================================
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*/
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import "@fontsource/roboto/300.css";
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import "@fontsource/roboto/400.css";
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import "@fontsource/roboto/500.css";
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import "@fontsource/roboto/700.css";
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import Box from "@mui/material/Container";
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import Checkbox from "@mui/material/Checkbox";
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import Typography from "@mui/material/Typography";
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import Container from "@mui/material/Container";
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import Slider from "@mui/material/Slider";
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import Button from "@mui/material/Button";
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import CardActions from "@mui/material/CardActions";
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import Snackbar from "@mui/material/Snackbar";
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import IconButton from "@mui/material/IconButton";
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import CloseIcon from "@mui/icons-material/Close";
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import InputLabel from "@mui/material/InputLabel";
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import MenuItem from "@mui/material/MenuItem";
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import FormControl from "@mui/material/FormControl";
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import Select from "@mui/material/Select";
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import FormGroup from "@mui/material/FormGroup";
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import FormControlLabel from "@mui/material/FormControlLabel";
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import { React, useState, useEffect, useRef } from "react";
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import PropTypes from "prop-types";
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import * as Juce from "juce-framework-frontend";
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import "./App.css";
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import { KnobPercentage } from "./Components/KnobPercentage";
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// Custom attributes in React must be in all lower case
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const controlParameterIndexAnnotation = "controlparameterindex";
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function JuceSlider({ identifier, title }) {
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JuceSlider.propTypes = {
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identifier: PropTypes.string,
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title: PropTypes.string,
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};
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const sliderState = Juce.getSliderState(identifier);
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const [value, setValue] = useState(sliderState.getNormalisedValue());
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const [properties, setProperties] = useState(sliderState.properties);
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const handleChange = (event, newValue) => {
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sliderState.setNormalisedValue(newValue);
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setValue(newValue);
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};
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const mouseDown = () => {
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sliderState.sliderDragStarted();
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};
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const changeCommitted = (event, newValue) => {
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sliderState.setNormalisedValue(newValue);
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sliderState.sliderDragEnded();
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};
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useEffect(() => {
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const valueListenerId = sliderState.valueChangedEvent.addListener(() => {
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setValue(sliderState.getNormalisedValue());
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});
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const propertiesListenerId = sliderState.propertiesChangedEvent.addListener(
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() => setProperties(sliderState.properties)
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);
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return function cleanup() {
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sliderState.valueChangedEvent.removeListener(valueListenerId);
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sliderState.propertiesChangedEvent.removeListener(propertiesListenerId);
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};
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});
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function calculateValue() {
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return sliderState.getScaledValue();
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}
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return (
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<Box
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{...{
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[controlParameterIndexAnnotation]:
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sliderState.properties.parameterIndex,
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}}
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>
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<Typography sx={{ mt: 1.5 }}>
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{properties.name}: {sliderState.getScaledValue()} {properties.label}
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</Typography>
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<KnobPercentage theme="stone" label={properties.name} />
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<p>
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{sliderState.getScaledValue()} {properties.label}
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</p>
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<Slider
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aria-label={title}
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value={value}
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scale={calculateValue}
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onChange={handleChange}
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min={0}
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max={1}
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step={1 / (properties.numSteps - 1)}
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onChangeCommitted={changeCommitted}
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onMouseDown={mouseDown}
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/>
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</Box>
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);
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}
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function JuceCheckbox({ identifier }) {
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JuceCheckbox.propTypes = {
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identifier: PropTypes.string,
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};
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const checkboxState = Juce.getToggleState(identifier);
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const [value, setValue] = useState(checkboxState.getValue());
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const [properties, setProperties] = useState(checkboxState.properties);
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const handleChange = (event) => {
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checkboxState.setValue(event.target.checked);
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setValue(event.target.checked);
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};
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useEffect(() => {
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const valueListenerId = checkboxState.valueChangedEvent.addListener(() => {
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setValue(checkboxState.getValue());
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});
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const propertiesListenerId =
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checkboxState.propertiesChangedEvent.addListener(() =>
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setProperties(checkboxState.properties)
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);
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return function cleanup() {
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checkboxState.valueChangedEvent.removeListener(valueListenerId);
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checkboxState.propertiesChangedEvent.removeListener(propertiesListenerId);
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};
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});
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const cb = <Checkbox checked={value} onChange={handleChange} />;
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return (
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<Box
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{...{
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[controlParameterIndexAnnotation]:
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checkboxState.properties.parameterIndex,
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}}
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>
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<FormGroup>
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<FormControlLabel control={cb} label={properties.name} />
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</FormGroup>
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</Box>
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);
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}
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function JuceComboBox({ identifier }) {
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JuceComboBox.propTypes = {
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identifier: PropTypes.string,
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};
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const comboBoxState = Juce.getComboBoxState(identifier);
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const [value, setValue] = useState(comboBoxState.getChoiceIndex());
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const [properties, setProperties] = useState(comboBoxState.properties);
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const handleChange = (event) => {
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comboBoxState.setChoiceIndex(event.target.value);
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setValue(event.target.value);
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};
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useEffect(() => {
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const valueListenerId = comboBoxState.valueChangedEvent.addListener(() => {
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setValue(comboBoxState.getChoiceIndex());
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});
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const propertiesListenerId =
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comboBoxState.propertiesChangedEvent.addListener(() => {
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setProperties(comboBoxState.properties);
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});
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return function cleanup() {
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comboBoxState.valueChangedEvent.removeListener(valueListenerId);
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comboBoxState.propertiesChangedEvent.removeListener(propertiesListenerId);
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};
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});
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return (
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<Box
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{...{
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[controlParameterIndexAnnotation]:
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comboBoxState.properties.parameterIndex,
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}}
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>
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<FormControl fullWidth>
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<InputLabel id={identifier}>{properties.name}</InputLabel>
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<Select
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labelId={identifier}
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value={value}
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label={properties.name}
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onChange={handleChange}
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>
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{properties.choices.map((choice, i) => (
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<MenuItem value={i} key={i}>
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{choice}
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</MenuItem>
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))}
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</Select>
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</FormControl>
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</Box>
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);
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}
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const sayHello = Juce.getNativeFunction("sayHello");
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const SpectrumDataReceiver_eventId = "spectrumData";
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function interpolate(a, b, s) {
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let result = new Array(a.length).fill(0);
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for (const [i, val] of a.entries()) result[i] += (1 - s) * val;
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for (const [i, val] of b.entries()) result[i] += s * val;
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return result;
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}
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function mod(dividend, divisor) {
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const quotient = Math.floor(dividend / divisor);
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return dividend - divisor * quotient;
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}
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class SpectrumDataReceiver {
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constructor(bufferLength) {
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this.bufferLength = bufferLength;
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this.buffer = new Array(this.bufferLength);
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this.readIndex = 0;
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this.writeIndex = 0;
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this.lastTimeStampMs = 0;
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this.timeResolutionMs = 0;
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let self = this;
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this.spectrumDataRegistrationId = window.__JUCE__.backend.addEventListener(
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SpectrumDataReceiver_eventId,
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() => {
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fetch(Juce.getBackendResourceAddress("spectrumData.json"))
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.then((response) => response.text())
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.then((text) => {
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const data = JSON.parse(text);
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if (self.timeResolutionMs == 0) {
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self.timeResolutionMs = data.timeResolutionMs;
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// We want to stay behind the write index by a full batch plus one
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// so that we can keep reading buffered frames until we receive the
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// new batch
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self.readIndex = -data.frames.length - 1;
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self.buffer.fill(new Array(data.frames[0].length).fill(0));
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}
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for (const f of data.frames)
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self.buffer[mod(self.writeIndex++, self.bufferLength)] = f;
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});
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}
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);
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}
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getBufferItem(index) {
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return this.buffer[mod(index, this.buffer.length)];
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}
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getLevels(timeStampMs) {
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if (this.timeResolutionMs == 0) return null;
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const previousTimeStampMs = this.lastTimeStampMs;
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this.lastTimeStampMs = timeStampMs;
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if (previousTimeStampMs == 0) return this.buffer[0];
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const timeAdvance =
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(timeStampMs - previousTimeStampMs) / this.timeResolutionMs;
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this.readIndex += timeAdvance;
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const integralPart = Math.floor(this.readIndex);
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const fractionalPart = this.readIndex - integralPart;
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return interpolate(
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this.getBufferItem(integralPart),
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this.getBufferItem(integralPart + 1),
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fractionalPart
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);
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}
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unregister() {
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window.__JUCE__.backend.removeEventListener(
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this.spectrumDataRegistrationId
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);
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}
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}
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function FreqBandInfo() {
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const canvasRef = useRef(null);
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let dataReceiver = null;
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let isActive = true;
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// eslint-disable-next-line no-unused-vars
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const render = (timeStampMs) => {
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const canvas = canvasRef.current;
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const ctx = canvas.getContext("2d");
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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var grd = ctx.createLinearGradient(0, 0, 0, canvas.height);
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grd.addColorStop(0, "#1976d2");
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grd.addColorStop(1, "#dae9f8");
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ctx.fillStyle = grd;
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if (dataReceiver != null) {
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const levels = dataReceiver.getLevels(timeStampMs);
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if (levels != null) {
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const numBars = levels.length;
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const barWidth = canvas.width / numBars;
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const barHeight = canvas.height;
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for (const [i, l] of levels.entries()) {
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ctx.fillRect(
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i * barWidth,
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barHeight - l * barHeight,
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barWidth,
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l * barHeight
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);
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}
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}
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}
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if (isActive) window.requestAnimationFrame(render);
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};
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useEffect(() => {
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dataReceiver = new SpectrumDataReceiver(10);
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isActive = true;
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window.requestAnimationFrame(render);
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return function cleanup() {
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isActive = false;
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dataReceiver.unregister();
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};
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});
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const canvasStyle = {
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marginLeft: "0",
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marginRight: "0",
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marginTop: "1em",
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display: "block",
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width: "94%",
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bottom: "0",
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position: "absolute",
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};
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return (
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<Box>
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<canvas height={90} style={canvasStyle} ref={canvasRef}></canvas>
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</Box>
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);
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}
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function App() {
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const controlParameterIndexUpdater = new Juce.ControlParameterIndexUpdater(
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controlParameterIndexAnnotation
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);
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document.addEventListener("mousemove", (event) => {
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controlParameterIndexUpdater.handleMouseMove(event);
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});
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const [open, setOpen] = useState(false);
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const [snackbarMessage, setMessage] = useState("No message received yet");
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const openSnackbar = () => {
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setOpen(true);
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};
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const handleClose = (event, reason) => {
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if (reason === "clickaway") {
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return;
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}
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setOpen(false);
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};
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const action = (
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<>
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<IconButton
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size="small"
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aria-label="close"
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color="inherit"
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onClick={handleClose}
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>
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<CloseIcon fontSize="small" />
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</IconButton>
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</>
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);
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return (
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<div>
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<Container>
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<JuceSlider identifier="formantSlider" title="Formant" />
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<JuceSlider identifier="cutoffSlider" title="Cutoff" />
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</Container>
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<CardActions style={{ justifyContent: "center" }}>
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<Button
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variant="contained"
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sx={{ marginTop: 2 }}
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onClick={() => {
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sayHello("JUCE").then((result) => {
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setMessage(result);
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openSnackbar();
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});
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}}
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>
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Call backend function
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</Button>
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</CardActions>
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<CardActions style={{ justifyContent: "center" }}>
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<Button
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variant="contained"
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sx={{ marginTop: 2 }}
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onClick={() => {
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fetch(Juce.getBackendResourceAddress("data.txt"))
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.then((response) => response.text())
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.then((text) => {
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setMessage("Data fetched: " + text);
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openSnackbar();
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});
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}}
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>
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Fetch data from backend
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</Button>
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</CardActions>
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<JuceCheckbox identifier="muteToggle" />
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<br></br>
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<JuceComboBox identifier="filterTypeCombo" />
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<FreqBandInfo></FreqBandInfo>
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<Snackbar
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open={open}
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autoHideDuration={6000}
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onClose={handleClose}
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message={snackbarMessage}
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action={action}
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/>
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</div>
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);
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}
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export default App;
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||||
Reference in New Issue
Block a user