dwker/lightweight-charts-python
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- legend 'text' parameter for displaying static text

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- table 'resize' method
This commit is contained in:
louisnw
2023-10-09 17:30:40 +01:00
parent 8b6a92be62
commit 33be333b41
4 changed files with 40 additions and 25 deletions
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24
lightweight_charts/js/funcs.js
View File

@ -54,6 +54,7 @@ if (!window.Chart) {
},
handleScroll: {vertTouchDrag: true},
})
this.legend = new Legend(this)
this.wrapper.style.display = 'flex'
this.wrapper.style.flexDirection = 'column'
this.wrapper.style.position = 'relative'
@ -180,8 +181,11 @@ if (!window.Chart) {
window.HorizontalLine = HorizontalLine
class Legend {
constructor(chart, ohlcEnabled, percentEnabled, linesEnabled,
color = 'rgb(191, 195, 203)', fontSize = '11', fontFamily = 'Monaco') {
constructor(chart) {
this.ohlcEnabled = false
this.percentEnabled = false
this.linesEnabled = false
this.div = document.createElement('div')
this.div.style.position = 'absolute'
this.div.style.zIndex = '3000'
@ -191,17 +195,15 @@ if (!window.Chart) {
this.div.style.display = 'flex'
this.div.style.flexDirection = 'column'
this.div.style.maxWidth = `${(chart.scale.width * 100) - 8}vw`
this.div.style.color = color
this.div.style.fontSize = fontSize + 'px'
this.div.style.fontFamily = fontFamily
this.text = document.createElement('span')
this.text.style.lineHeight = '1.8'
this.candle = document.createElement('div')
this.div.appendChild(this.text)
this.div.appendChild(this.candle)
chart.div.appendChild(this.div)
this.color = color
this.linesEnabled = linesEnabled
this.makeLines(chart)
let legendItemFormat = (num, decimal) => num.toFixed(decimal).toString().padStart(8, ' ')
@ -228,11 +230,11 @@ if (!window.Chart) {
| C ${legendItemFormat(data.close, chart.precision)} `
let percentMove = ((data.close - data.open) / data.open) * 100
let percent = `| ${percentMove >= 0 ? '+' : ''}${percentMove.toFixed(2)} %`
finalString += ohlcEnabled ? ohlc : ''
finalString += percentEnabled ? percent : ''
finalString += this.ohlcEnabled ? ohlc : ''
finalString += this.percentEnabled ? percent : ''
let volumeData = param.seriesData.get(chart.volumeSeries)
if (volumeData) finalString += ohlcEnabled ? `<br>V ${shorthandFormat(volumeData.value)}` : ''
if (volumeData) finalString += this.ohlcEnabled ? `<br>V ${shorthandFormat(volumeData.value)}` : ''
}
this.candle.innerHTML = finalString + '</span>'
this.lines.forEach((line) => {

8
lightweight_charts/js/table.js
View File

@ -15,8 +15,7 @@ if (!window.Table) {
this.container.style.float = position
}
this.container.style.zIndex = '2000'
this.container.style.width = width <= 1 ? width * 100 + '%' : width + 'px'
this.container.style.height = height <= 1 ? height * 100 + '%' : height + 'px'
this.reSize(width, height)
this.container.style.display = 'flex'
this.container.style.flexDirection = 'column'
this.container.style.justifyContent = 'space-between'
@ -157,6 +156,11 @@ if (!window.Table) {
this[type].push(textBox)
}
}
reSize(width, height) {
this.container.style.width = width <= 1 ? width * 100 + '%' : width + 'px'
this.container.style.height = height <= 1 ? height * 100 + '%' : height + 'px'
}
}
window.Table = Table
}