commonMain.jetbrains.datalore.plot.base.geom.VLineGeom.kt Maven / Gradle / Ivy
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/*
* Copyright (c) 2020. JetBrains s.r.o.
* Use of this source code is governed by the MIT license that can be found in the LICENSE file.
*/
package jetbrains.datalore.plot.base.geom
import jetbrains.datalore.base.geometry.DoubleRectangle
import jetbrains.datalore.base.geometry.DoubleVector
import jetbrains.datalore.plot.base.*
import jetbrains.datalore.plot.base.aes.AesScaling
import jetbrains.datalore.plot.base.geom.legend.VLineLegendKeyElementFactory
import jetbrains.datalore.plot.base.geom.util.GeomHelper
import jetbrains.datalore.plot.base.geom.util.GeomUtil
import jetbrains.datalore.plot.base.geom.util.HintColorUtil
import jetbrains.datalore.plot.base.interact.GeomTargetCollector
import jetbrains.datalore.plot.base.render.LegendKeyElementFactory
import jetbrains.datalore.plot.base.render.SvgRoot
import jetbrains.datalore.vis.svg.SvgLineElement
import kotlin.math.max
class VLineGeom : GeomBase() {
override val legendKeyElementFactory: LegendKeyElementFactory
get() = LEGEND_KEY_ELEMENT_FACTORY
override fun buildIntern(
root: SvgRoot,
aesthetics: Aesthetics,
pos: PositionAdjustment,
coord: CoordinateSystem,
ctx: GeomContext
) {
val geomHelper = GeomHelper(pos, coord, ctx)
val helper = geomHelper.createSvgElementHelper()
helper.setStrokeAlphaEnabled(true)
val viewPort = when {
ctx.flipped -> ctx.getAesBounds().flip()
else -> ctx.getAesBounds()
}
val lines = ArrayList()
for (p in GeomUtil.withDefined(aesthetics.dataPoints(), Aes.XINTERCEPT)) {
val intercept = p.interceptX()!!
if (viewPort.xRange().contains(intercept)) {
val start = DoubleVector(intercept, viewPort.top)
val end = DoubleVector(intercept, viewPort.bottom)
val line = helper.createLine(start, end, p)
lines.add(line)
val width = max(AesScaling.strokeWidth(p), 2.0) * 2.0
val origin = DoubleVector(intercept - width / 2, end.y)
val dimensions = DoubleVector(width, 0.0)
val rect = DoubleRectangle(origin, dimensions)
ctx.targetCollector.addRectangle(
p.index(),
geomHelper.toClient(rect, p),
GeomTargetCollector.TooltipParams.params()
.setColor(HintColorUtil.fromColor(p))
)
}
}
lines.forEach { root.add(it) }
}
companion object {
const val HANDLES_GROUPS = false
val LEGEND_KEY_ELEMENT_FACTORY: LegendKeyElementFactory =
VLineLegendKeyElementFactory()
}
}
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