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feat: Add basic support for negative values in BarSerie

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This commit is contained in:
Florian Bouillon 2023-01-10 17:32:40 +01:00
parent 7a17d45257
commit 58314603ec
1 changed files with 30 additions and 15 deletions
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25
library/src/main/java/com/dzeio/charts/series/BarSerie.kt
View File

@ -47,12 +47,14 @@ class BarSerie(
val max = view.yAxis.getYMax()
val min = view.yAxis.getYMin()
// Log.d(TAG, "${space.left}, ${space.right}")
val zero = ((1 - -min / (max - min)) * drawableSpace.height() + drawableSpace.top).coerceIn(
drawableSpace.top, drawableSpace.bottom
)
for (entry in displayedEntries) {
// calculated height in percent from 0 to 100
val top = ((1 - (entry.y - min) / (max - min)) * drawableSpace.height() + drawableSpace.top)
.coerceAtMost(drawableSpace.bottom)
.coerceIn(drawableSpace.top, drawableSpace.bottom)
var posX = drawableSpace.left + view.xAxis.getPositionOnRect(
entry,
drawableSpace
@ -77,18 +79,31 @@ class BarSerie(
paint.color = entry.color!!
}
if (entry.y < 0) {
canvas.drawRoundRect(
posX,
zero,
right,
top,
0f,
0f,
32f,
32f,
paint
)
} else {
canvas.drawRoundRect(
posX,
top,
right,
drawableSpace.bottom,
// 8f, 8f,
zero,
32f,
32f,
0f,
0f,
paint
)
}
// handle text display
val text = view.yAxis.onValueFormat(entry.y)
@ -112,7 +127,7 @@ class BarSerie(
var textY = if (doDisplayIn) top + rect.height() + 16f else top - 16f
if (textY < 0) {
if (textY < drawableSpace.top + rect.height()) {
textY = drawableSpace.top + rect.height()
}