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import Graphics from '../Graphics'
import Utils from '../../utils/Utils'
import AxesUtils from '../axes/AxesUtils'
export default class DimYAxis {
constructor(dCtx) {
this.w = dCtx.w
this.dCtx = dCtx
}
/**
* Get Y Axis Dimensions
* @memberof Dimensions
* @return {{width, height}}
**/
getyAxisLabelsCoords() {
let w = this.w
let width = 0
let height = 0
let ret = []
let labelPad = 10
const axesUtils = new AxesUtils(this.dCtx.ctx)
w.config.yaxis.map((yaxe, index) => {
const formatterArgs = {
seriesIndex: index,
dataPointIndex: -1,
w,
}
const yS = w.globals.yAxisScale[index]
let yAxisMinWidth = 0
if (
!axesUtils.isYAxisHidden(index) &&
yaxe.labels.show &&
yaxe.labels.minWidth !== undefined
)
yAxisMinWidth = yaxe.labels.minWidth
if (
!axesUtils.isYAxisHidden(index) &&
yaxe.labels.show &&
yS.result.length
) {
let lbFormatter = w.globals.yLabelFormatters[index]
let minV = yS.niceMin === Number.MIN_VALUE ? 0 : yS.niceMin
let val = yS.result.reduce((acc, curr) => {
return String(lbFormatter(acc, formatterArgs))?.length >
String(lbFormatter(curr, formatterArgs))?.length
? acc
: curr
}, minV)
val = lbFormatter(val, formatterArgs)
// the second parameter -1 is the index of tick which user can use in the formatter
let valArr = val
// if user has specified a custom formatter, and the result is null or empty, we need to discard the formatter and take the value as it is.
if (typeof val === 'undefined' || val.length === 0) {
val = yS.niceMax
}
if (w.globals.isBarHorizontal) {
labelPad = 0
let barYaxisLabels = w.globals.labels.slice()
// get the longest string from the labels array and also apply label formatter to it
val = Utils.getLargestStringFromArr(barYaxisLabels)
val = lbFormatter(val, { seriesIndex: index, dataPointIndex: -1, w })
valArr = this.dCtx.dimHelpers.getLargestStringFromMultiArr(
val,
barYaxisLabels
)
}
let graphics = new Graphics(this.dCtx.ctx)
let rotateStr = 'rotate('.concat(yaxe.labels.rotate, ' 0 0)')
let rect = graphics.getTextRects(
val,
yaxe.labels.style.fontSize,
yaxe.labels.style.fontFamily,
rotateStr,
false
)
let arrLabelrect = rect
if (val !== valArr) {
arrLabelrect = graphics.getTextRects(
valArr,
yaxe.labels.style.fontSize,
yaxe.labels.style.fontFamily,
rotateStr,
false
)
}
ret.push({
width:
(yAxisMinWidth > arrLabelrect.width || yAxisMinWidth > rect.width
? yAxisMinWidth
: arrLabelrect.width > rect.width
? arrLabelrect.width
: rect.width) + labelPad,
height:
arrLabelrect.height > rect.height
? arrLabelrect.height
: rect.height,
})
} else {
ret.push({
width,
height,
})
}
})
return ret
}
/**
* Get Y Axis Dimensions
* @memberof Dimensions
* @return {{width, height}}
**/
getyAxisTitleCoords() {
let w = this.w
let ret = []
w.config.yaxis.map((yaxe, index) => {
if (yaxe.show && yaxe.title.text !== undefined) {
let graphics = new Graphics(this.dCtx.ctx)
let rotateStr = 'rotate('.concat(yaxe.title.rotate, ' 0 0)')
let rect = graphics.getTextRects(
yaxe.title.text,
yaxe.title.style.fontSize,
yaxe.title.style.fontFamily,
rotateStr,
false
)
ret.push({
width: rect.width,
height: rect.height,
})
} else {
ret.push({
width: 0,
height: 0,
})
}
})
return ret
}
getTotalYAxisWidth() {
let w = this.w
let yAxisWidth = 0
let yAxisWidthLeft = 0
let yAxisWidthRight = 0
let padding = w.globals.yAxisScale.length > 1 ? 10 : 0
const axesUtils = new AxesUtils(this.dCtx.ctx)
const isHiddenYAxis = function (index) {
return w.globals.ignoreYAxisIndexes.indexOf(index) > -1
}
const padForLabelTitle = (coord, index) => {
let floating = w.config.yaxis[index].floating
let width = 0
if (coord.width > 0 && !floating) {
width = coord.width + padding
if (isHiddenYAxis(index)) {
width = width - coord.width - padding
}
} else {
width = floating || axesUtils.isYAxisHidden(index) ? 0 : 5
}
w.config.yaxis[index].opposite
? (yAxisWidthRight = yAxisWidthRight + width)
: (yAxisWidthLeft = yAxisWidthLeft + width)
yAxisWidth = yAxisWidth + width
}
w.globals.yLabelsCoords.map((yLabelCoord, index) => {
padForLabelTitle(yLabelCoord, index)
})
w.globals.yTitleCoords.map((yTitleCoord, index) => {
padForLabelTitle(yTitleCoord, index)
})
if (w.globals.isBarHorizontal && !w.config.yaxis[0].floating) {
yAxisWidth =
w.globals.yLabelsCoords[0].width + w.globals.yTitleCoords[0].width + 15
}
this.dCtx.yAxisWidthLeft = yAxisWidthLeft
this.dCtx.yAxisWidthRight = yAxisWidthRight
return yAxisWidth
}
}