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#74 chart for cheap coins #306

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Merged
Kaaveh merged 2 commits into from
Feb 19, 2026
Merged

#74 chart for cheap coins #306

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aaabaec
#74 chart for cheap coins
Kaaveh Feb 19, 2026
87a2718
#74 Fix CyclomaticComplexMethod detekt warning in QuadLineChart
Kaaveh Feb 19, 2026
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22 changes: 14 additions & 8 deletions library/designsystem/src/main/java/ir/composenews/designsystem/component/QuadLineChart.kt
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
@file:Suppress("MagicNumber", "LongMethod", "ktlint")
@file:Suppress("MagicNumber", "LongMethod", "ktlint", "CyclomaticComplexMethod")

package ir.composenews.designsystem.component

Expand Down Expand Up @@ -36,7 +36,6 @@ import ir.composenews.designsystem.theme.ComposeNewsTheme
import ir.composenews.designsystem.theme.graphColor
import ir.composenews.designsystem.theme.lightGraphColor
import kotlin.math.round
import kotlin.math.roundToInt

@Composable
fun QuadLineChart(
Expand All @@ -48,10 +47,10 @@ fun QuadLineChart(
val columnTextColor = MaterialTheme.colorScheme.onSurface.toArgb()

val upperValue = remember(key1 = data) {
(data.maxOfOrNull { it.second }?.let { it + it * 0.05 })?.roundToInt() ?: 0
(data.maxOfOrNull { it.second }?.let { it + it * 0.05 }) ?: 0.0
}
val lowerValue = remember(key1 = data) {
(data.minOfOrNull { it.second }?.let { it - it * 0.02 }?.toInt() ?: 0)
(data.minOfOrNull { it.second }?.let { it - it * 0.02 }) ?: 0.0
}
val density = LocalDensity.current

Expand Down Expand Up @@ -84,12 +83,18 @@ fun QuadLineChart(
.height(dimensionResource(R.dimen.quad_line_chart_height)),
) {
val spacePerHour = (size.width - spacing) / data.size
val priceStep = (upperValue - lowerValue) / 5f
val priceStep = (upperValue - lowerValue) / 5.0

repeat(5) { i ->
drawContext.canvas.nativeCanvas.apply {
val labelValue = lowerValue + priceStep * i
val label = if (labelValue >= 1.0) {
round(labelValue).toLong().toString()
} else {
"%.6f".format(labelValue).trimEnd('0').trimEnd('.')
}
drawText(
round(lowerValue + priceStep * i).toString(),
label,
textXDimen,
size.height - spacing - i * size.height / 5f,
textPaint,
Expand All @@ -99,12 +104,13 @@ fun QuadLineChart(

var medX: Float
var medY: Float
val range = upperValue - lowerValue
val strokePath = Path().apply {
val height = size.height
data.indices.forEach { i ->
val nextInfo = data.getOrNull(i + 1) ?: data.last()
val firstRatio = (data[i].second - lowerValue) / (upperValue - lowerValue)
val secondRatio = (nextInfo.second - lowerValue) / (upperValue - lowerValue)
val firstRatio = if (range == 0.0) 0.5 else (data[i].second - lowerValue) / range
val secondRatio = if (range == 0.0) 0.5 else (nextInfo.second - lowerValue) / range

val x1 = spacing + i * spacePerHour
val y1 = height - spacing - (firstRatio * height).toFloat()
Expand Down
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