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-rw-r--r--animism-align/frontend/app/views/align/components/timeline/waveform.component.js105
1 files changed, 0 insertions, 105 deletions
diff --git a/animism-align/frontend/app/views/align/components/timeline/waveform.component.js b/animism-align/frontend/app/views/align/components/timeline/waveform.component.js
deleted file mode 100644
index 59a2c13..0000000
--- a/animism-align/frontend/app/views/align/components/timeline/waveform.component.js
+++ /dev/null
@@ -1,105 +0,0 @@
-import React, { Component } from 'react'
-// import { Link } from 'react-router-dom'
-// import { bindActionCreators } from 'redux'
-import { connect } from 'react-redux'
-
-import actions from 'app/actions'
-
-import {
- WAVEFORM_SIZE, INNER_HEIGHT,
- ZOOM_STEPS, ZOOM_LABEL_STEPS, ZOOM_TICK_STEPS,
-} from 'app/constants'
-
-class Waveform extends Component {
- constructor(props){
- super(props)
- this.canvasRef = React.createRef()
- }
- componentDidMount() {
- this.resize()
- this.draw()
- }
- componentDidUpdate() {
- this.draw()
- }
- resize() {
- const canvas = this.canvasRef.current
- canvas.width = WAVEFORM_SIZE
- canvas.height = INNER_HEIGHT
- }
- draw() {
- const canvas = this.canvasRef.current
- const ctx = canvas.getContext('2d')
- const h = INNER_HEIGHT
- this.clearCanvas(ctx, h)
- this.drawCurve(ctx, h)
- }
- clearCanvas(ctx, h) {
- const w = WAVEFORM_SIZE
- ctx.clearRect(0, 0, w, h)
- ctx.fillStyle = 'rgba(0,0,0,0.5)'
- ctx.fillRect(0, 0, w, h)
- ctx.fillStyle = 'rgba(64,128,192,0.5)'
- }
- drawCurve(ctx, h) {
- let { peaks, timeline } = this.props
- let { start_ts, zoom, duration } = timeline
-
- let secondsPerPixel = ZOOM_STEPS[zoom] * 0.1 // 0.1 sec / step
- let stepsPerPixel = ZOOM_STEPS[zoom] // 0.1 sec / step
-
- let widthTimeDuration = h * secondsPerPixel // secs per pixel
-
- let timeMin = Math.round(start_ts / secondsPerPixel) * secondsPerPixel
- let timeMax = Math.min(timeMin + widthTimeDuration, duration)
- let timeWidth = timeMax - timeMin
-
- let stepMin = Math.floor(timeMin * 10)
- let pixelWidth = Math.ceil(timeWidth / secondsPerPixel)
-
- let i = 0
- let step = stepMin
- let waveformPeak = WAVEFORM_SIZE / 2
- let origin = (1 - peaks[step]) * waveformPeak
- let y
- let peak
- // console.log(stepMin, pixelWidth * stepsPerPixel + stepMin)
- ctx.beginPath()
- ctx.moveTo(origin, 0)
- for (i = 0; i < pixelWidth; i++) {
- step = i * stepsPerPixel + stepMin
- peak = peaks[step]
- y = (1 - peak) * waveformPeak
- ctx.lineTo(y, i)
- }
- for (i = pixelWidth - 1; i > 0; i--) {
- step = i * stepsPerPixel + stepMin
- peak = peaks[step]
- y = (1 + peak) * waveformPeak
- ctx.lineTo(y, i)
- }
- ctx.lineTo(origin, 0)
- ctx.fillStyle = 'rgba(255,255,255,0.8)'
- ctx.fill()
- }
- render() {
- return (
- <canvas
- ref={this.canvasRef}
- onMouseDown={this.props.onMouseDown}
- onMouseUp={this.props.onMouseUp}
- />
- )
- }
-}
-
-const mapStateToProps = state => ({
- timeline: state.align.timeline,
- peaks: state.site.peaks,
-})
-
-const mapDispatchToProps = dispatch => ({
- // uploadActions: bindActionCreators({ ...uploadActions }, dispatch),
-})
-
-export default connect(mapStateToProps, mapDispatchToProps)(Waveform)