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feat: Gain reduction meter & preparing Behringer XR protocol
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olzzon
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olzzon
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Apr 18, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| .reductionmeter-body { | ||
| position: relative; | ||
| top: 15px; | ||
| width: 24px; | ||
| margin-top: 15px; | ||
| margin-left: 5px; | ||
| background-color: black; | ||
| border-radius: 7px; | ||
| } | ||
|
|
||
| .reductionmeter-canvas { | ||
| position: absolute; | ||
| width: 10px; | ||
| margin-left: -5px; | ||
| bottom: 0; | ||
| height: 100%; | ||
| } | ||
|
|
||
| .reductionmeter-lower-part { | ||
| position: absolute; | ||
| width: 10px; | ||
| margin-left: 10px; | ||
| background-color: rgb(0, 122, 37); | ||
| } | ||
| .reductionmeter-middle-part { | ||
| position: absolute; | ||
| width: 10px; | ||
| margin-left: 10px; | ||
| background-color: rgb(53, 167, 0); | ||
| } | ||
| .reductionmeter-upper-part { | ||
| position: absolute; | ||
| width: 10px; | ||
| margin-left: 10px; | ||
| background-color: rgb(206, 0, 0); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| import * as React from 'react' | ||
| import { connect } from "react-redux" | ||
|
|
||
| //assets: | ||
| import '../assets/css/ReductionMeter.css' | ||
| //Utils: | ||
|
|
||
| export interface IReductionMeterInjectedProps { | ||
| reductionVal: number | ||
| } | ||
|
|
||
| interface IVuMeterProps { | ||
| faderIndex: number | ||
| } | ||
|
|
||
| export class ReductionMeter extends React.Component<IReductionMeterInjectedProps> { | ||
| canvas: HTMLCanvasElement | undefined | ||
|
|
||
| totalPeak: number = 0 | ||
| windowPeak: number = 0 | ||
| windowLast: number = 0 | ||
| WINDOW: number = 2000 | ||
|
|
||
| constructor(props: any) { | ||
| super(props) | ||
| } | ||
|
|
||
| public shouldComponentUpdate(nextProps: IReductionMeterInjectedProps) { | ||
| return ( | ||
| nextProps.reductionVal != this.props.reductionVal | ||
| ) | ||
| } | ||
|
|
||
| totalHeight = () => { | ||
| return 170 / (window.mixerProtocol.meter.max - window.mixerProtocol.meter.min) | ||
| } | ||
|
|
||
| getTotalPeak = () => { | ||
| if (this.props.reductionVal > this.totalPeak) { | ||
| this.totalPeak = this.props.reductionVal | ||
| } | ||
| return this.totalHeight()*this.totalPeak | ||
| } | ||
|
|
||
| getWindowPeak = () => { | ||
| if (this.props.reductionVal > this.windowPeak || (Date.now() - this.windowLast) > this.WINDOW) { | ||
| this.windowPeak = this.props.reductionVal | ||
| this.windowLast = Date.now() | ||
| } | ||
| return this.totalHeight()*this.windowPeak | ||
| } | ||
|
|
||
| calcLower = () => { | ||
| let val = this.props.reductionVal | ||
| if (val >= window.mixerProtocol.meter.test) { | ||
| val = window.mixerProtocol.meter.test | ||
| } | ||
| return val | ||
| } | ||
|
|
||
| calcMiddle = () => { | ||
| let val = this.props.reductionVal | ||
| if (val < window.mixerProtocol.meter.test) { | ||
| val = window.mixerProtocol.meter.test | ||
| } else if (val >= window.mixerProtocol.meter.zero) { | ||
| val = window.mixerProtocol.meter.zero | ||
| } | ||
| return val+1 | ||
| } | ||
|
|
||
| calcUpper = () => { | ||
| let val = this.props.reductionVal | ||
| if (val < window.mixerProtocol.meter.zero) { | ||
| val = window.mixerProtocol.meter.zero | ||
| } | ||
| return val+1 | ||
| } | ||
|
|
||
| setRef = (element: HTMLCanvasElement) => { | ||
| this.canvas = element | ||
|
|
||
| this.paintVuMeter() | ||
| } | ||
|
|
||
| resetTotalPeak = () => { | ||
| this.totalPeak = 0 | ||
| } | ||
|
|
||
| paintVuMeter = () => { | ||
| if (!this.canvas) return | ||
|
|
||
| const context = this.canvas.getContext("2d", { | ||
| antialias: false, | ||
| stencil: false, | ||
| preserveDrawingBuffer: true | ||
| }) as CanvasRenderingContext2D | ||
|
|
||
| if (!context) return | ||
|
|
||
| context.clearRect(0, 0, this.canvas.clientWidth, this.canvas.clientHeight) | ||
|
|
||
| // lower part | ||
| context.fillStyle = 'rgb(0, 122, 37)' | ||
| context.fillRect(0, 0, this.canvas.clientWidth, this.calcLower()) //(this.totalHeight() - this.calcLower()), this.canvas.clientWidth, this.calcLower()) | ||
|
|
||
| // middle part | ||
| let middle = this.calcMiddle() | ||
| let middleRef = this.totalHeight() * window.mixerProtocol.meter.test | ||
| context.fillStyle = 'rgb(53, 167, 0)' | ||
| context.fillRect(0, middleRef, this.canvas.clientWidth, middle)// (this.totalHeight() * (range - window.mixerProtocol.meter.test) - this.calcMiddle()), this.canvas.clientWidth, this.calcMiddle()) | ||
|
|
||
| // upper part (too high/clip) | ||
| let upper = this.calcUpper() | ||
| let upperRef = this.totalHeight() * window.mixerProtocol.meter.zero | ||
| context.fillStyle = 'rgb(206, 0, 0)' | ||
| context.fillRect(0, upperRef, this.canvas.clientWidth, upper) | ||
|
|
||
| // windowed peak | ||
| const windowPeak = this.getWindowPeak() | ||
| if (this.windowPeak < window.mixerProtocol.meter.zero) { | ||
| context.fillStyle = 'rgb(16, 56, 0)' | ||
| } else { | ||
| context.fillStyle = 'rgb(100, 100, 100)' | ||
| } | ||
| context.fillRect(0, (this.totalHeight() - windowPeak), this.canvas.clientWidth, 2) | ||
|
|
||
| // absolute peak | ||
| if (this.totalPeak < window.mixerProtocol.meter.zero) { | ||
| context.fillStyle = 'rgb(64, 64, 64)' | ||
| } else { | ||
| context.fillStyle = 'rgb(255, 0, 0)' | ||
| } | ||
| context.fillRect(0, (this.totalHeight() - this.getTotalPeak()), this.canvas.clientWidth, 2) | ||
| } | ||
|
|
||
| render() { | ||
| this.paintVuMeter() | ||
|
|
||
| return ( | ||
| <div className="reductionmeter-body" | ||
| style={{ | ||
| "height" : this.totalHeight() + 30 | ||
| }} | ||
| onClick={this.resetTotalPeak} | ||
| > | ||
| <canvas | ||
| className="reductionmeter-canvas" | ||
| style={ | ||
| { | ||
| "height": this.totalHeight(), | ||
| "top": "10px" | ||
| } | ||
| } | ||
| height={this.totalHeight()} | ||
| width={10} | ||
| ref={this.setRef} | ||
| ></canvas> | ||
|
|
||
| </div> | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| const mapStateToProps = (state: any, props: any): IReductionMeterInjectedProps => { | ||
| return { | ||
| reductionVal: state.faders[0].vuMeters[props.faderIndex].reductionVal | ||
| } | ||
| } | ||
|
|
||
| export default connect<IReductionMeterInjectedProps, any, any>(mapStateToProps)(ReductionMeter) |
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