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Diffstat (limited to 'src/client/northstar/dash-nodes/HistogramLabelPrimitives.tsx')
| -rw-r--r-- | src/client/northstar/dash-nodes/HistogramLabelPrimitives.tsx | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/client/northstar/dash-nodes/HistogramLabelPrimitives.tsx b/src/client/northstar/dash-nodes/HistogramLabelPrimitives.tsx new file mode 100644 index 000000000..93b237deb --- /dev/null +++ b/src/client/northstar/dash-nodes/HistogramLabelPrimitives.tsx @@ -0,0 +1,79 @@ +import React = require("react") +import { action, computed, reaction } from "mobx"; +import { observer } from "mobx-react"; +import { Utils as DashUtils } from '../../../Utils'; +import { NominalVisualBinRange } from "../model/binRanges/NominalVisualBinRange"; +import "../utils/Extensions"; +import { StyleConstants } from "../utils/StyleContants"; +import { HistogramBox } from "./HistogramBox"; +import "./HistogramLabelPrimitives.scss"; +import { HistogramPrimitivesProps } from "./HistogramBoxPrimitives"; + +@observer +export class HistogramLabelPrimitives extends React.Component<HistogramPrimitivesProps> { + componentDidMount() { + reaction(() => [this.props.HistoBox.PanelWidth, this.props.HistoBox.SizeConverter.LeftOffset, this.props.HistoBox.VisualBinRanges.length], + (fields) => HistogramLabelPrimitives.computeLabelAngle(fields[0] as number, fields[1] as number, this.props.HistoBox), { fireImmediately: true }); + } + + @action + static computeLabelAngle(panelWidth: number, leftOffset: number, histoBox: HistogramBox) { + const textWidth = 30; + if (panelWidth > 0 && histoBox.VisualBinRanges.length && histoBox.VisualBinRanges[0] instanceof NominalVisualBinRange) { + let space = (panelWidth - leftOffset * 2) / histoBox.VisualBinRanges[0].GetBins().length; + histoBox.SizeConverter.SetLabelAngle(Math.min(Math.PI / 2, Math.max(Math.PI / 6, textWidth / space * Math.PI / 2))); + } else if (histoBox.SizeConverter.LabelAngle) { + histoBox.SizeConverter.SetLabelAngle(0); + } + } + @computed get xaxislines() { return this.renderGridLinesAndLabels(0); } + @computed get yaxislines() { return this.renderGridLinesAndLabels(1); } + + private renderGridLinesAndLabels(axis: number) { + let sc = this.props.HistoBox.SizeConverter; + let vb = this.props.HistoBox.VisualBinRanges; + if (!vb.length || !sc.Initialized) + return (null); + let dim = (axis == 0 ? this.props.HistoBox.PanelWidth : this.props.HistoBox.PanelHeight) / ((axis == 0 && vb[axis] instanceof NominalVisualBinRange) ? + (12 + 5) : // (<number>FontStyles.AxisLabel.fontSize + 5))); + sc.MaxLabelSizes[axis].coords[axis] + 5); + + let labels = vb[axis].GetLabels(); + return labels.reduce((prims, binLabel, i) => { + let r = sc.DataToScreenRange(binLabel.minValue!, binLabel.maxValue!, axis); + if (i % Math.ceil(labels.length / dim) === 0 && binLabel.label) { + const label = binLabel.label.Truncate(StyleConstants.MAX_CHAR_FOR_HISTOGRAM_LABELS, "..."); + const textHeight = 14; const textWidth = 30; + let xStart = (axis === 0 ? r.xFrom + (r.xTo - r.xFrom) / 2.0 : r.xFrom - 10 - textWidth); + let yStart = (axis === 1 ? r.yFrom - textHeight / 2 : r.yFrom); + + if (axis == 0 && vb[axis] instanceof NominalVisualBinRange) { + let space = (r.xTo - r.xFrom) / sc.RenderDimension * this.props.HistoBox.PanelWidth; + xStart += Math.max(textWidth / 2, (1 - textWidth / space) * textWidth / 2) - textHeight / 2; + } + + let xPercent = axis == 1 ? `${xStart}px` : `${xStart / sc.RenderDimension * 100}%` + let yPercent = axis == 0 ? `${this.props.HistoBox.PanelHeight - sc.BottomOffset - textHeight}px` : `${yStart / sc.RenderDimension * 100}%` + + prims.push( + <div className="histogramLabelPrimitives-placer" key={DashUtils.GenerateGuid()} style={{ transform: `translate(${xPercent}, ${yPercent})` }}> + <div className="histogramLabelPrimitives-gridlabel" style={{ transform: `rotate(${axis == 0 ? sc.LabelAngle : 0}rad)` }}> + {label} + </div> + </div> + ) + } + return prims; + }, [] as JSX.Element[]); + } + + render() { + let xaxislines = this.xaxislines; + let yaxislines = this.yaxislines; + return <div className="histogramLabelPrimitives-container"> + {xaxislines} + {yaxislines} + </div> + } + +}
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