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Updated on 2026-08-14

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Tangem 2023-10-18 11:45:51 +04:00
parent 7d6d4fddf6
commit d75368608f
4 changed files with 134 additions and 5 deletions
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4
core/ui/src/main/java/com/tangem/core/ui/res/TangemColors.kt
View file

@ -145,6 +145,7 @@ class TangemColors internal constructor(
class Background internal constructor(
primary: Color,
secondary: Color,
tertiary: Color,
plain: Color,
action: Color,
fade: Color,
@ -153,6 +154,8 @@ class TangemColors internal constructor(
private set
var secondary by mutableStateOf(secondary)
private set
var tertiary by mutableStateOf(tertiary)
private set
var plain by mutableStateOf(plain)
private set
var action by mutableStateOf(action)
@ -163,6 +166,7 @@ class TangemColors internal constructor(
fun update(other: Background) {
primary = other.primary
secondary = other.secondary
tertiary = other.tertiary
plain = other.plain
action = other.action
fade = other.fade

2
core/ui/src/main/java/com/tangem/core/ui/res/TangemDimens.kt
View file

@ -33,6 +33,7 @@ data class TangemDimens internal constructor(
val radius18: Dp = 18.dp,
val radius24: Dp = 24.dp,
val radius28: Dp = 28.dp,
val radius36: Dp = 36.dp,
// endregion Radius
// region Size
val size0: Dp = 0.dp,
@ -71,6 +72,7 @@ data class TangemDimens internal constructor(
val size80: Dp = 80.dp,
val size84: Dp = 84.dp,
val size86: Dp = 86.dp,
val size90: Dp = 90.dp,
val size93: Dp = 93.dp,
val size96: Dp = 96.dp,
val size102: Dp = 102.dp,

12
core/ui/src/main/java/com/tangem/core/ui/res/TangemTheme.kt
View file

@ -116,12 +116,13 @@ private fun lightThemeColors(): TangemColors {
background = TangemColors.Background(
primary = TangemColorPalette.White,
secondary = TangemColorPalette.Light1,
tertiary = TangemColorPalette.Light1,
plain = TangemColorPalette.White,
action = TangemColorPalette.Black,
action = TangemColorPalette.White,
fade = TangemColorPalette.White,
),
control = TangemColors.Control(
checked = TangemColorPalette.Meadow,
checked = TangemColorPalette.Dark6,
unchecked = TangemColorPalette.Light2,
key = TangemColorPalette.White,
),
@ -168,14 +169,15 @@ private fun darkThemeColors(): TangemColors {
background = TangemColors.Background(
primary = TangemColorPalette.Dark6,
secondary = TangemColorPalette.Black,
tertiary = TangemColorPalette.Dark6,
plain = TangemColorPalette.Black,
action = TangemColorPalette.Light4,
action = TangemColorPalette.Dark5,
fade = TangemColorPalette.Black,
),
control = TangemColors.Control(
checked = TangemColorPalette.Meadow,
checked = TangemColorPalette.Azure,
unchecked = TangemColorPalette.Dark4,
key = TangemColorPalette.Light1,
key = TangemColorPalette.White,
),
stroke = TangemColors.Stroke(
primary = TangemColorPalette.Dark5,

121
features/manage-tokens/impl/src/main/java/com/tangem/managetokens/presentation/managetokens/ui/components/PriceChangesChart.kt Normal file
View file

@ -0,0 +1,121 @@
package com.tangem.managetokens.presentation.managetokens.ui.components
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.geometry.Size
import androidx.compose.ui.graphics.Brush
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.Path
import androidx.compose.ui.graphics.drawscope.DrawScope
import androidx.compose.ui.graphics.drawscope.Stroke
import androidx.compose.ui.tooling.preview.Preview
import com.tangem.core.ui.res.TangemTheme
/**
* A chart with a solid line and gradient underneath. It can accept values of any range and number.
* If the last value is bigger or equal to the first, the chart is of accent color, otherwise it's warning color.
*
* @param values a list of float values for a chart.
**/
@Composable
fun PriceChangesChart(values: List<Float>, modifier: Modifier = Modifier) {
Row(modifier = modifier) {
if (values.size < 2) return // escape without drawing when there are not enough points
val lineColor = if (values.last() >= values.first()) {
TangemTheme.colors.icon.accent
} else {
TangemTheme.colors.icon.warning
}
val gradient = Brush.verticalGradient(
colors = listOf(lineColor.copy(alpha = 0.21f), lineColor.copy(alpha = 0.0f)),
)
Chart(list = values, lineColor = lineColor, gradient = gradient, modifier = Modifier.weight(1f))
}
}
@Composable
private fun Chart(list: List<Float>, lineColor: Color, gradient: Brush, modifier: Modifier = Modifier) {
val max = list.max()
val min = list.min()
val zipList: List<Pair<Float, Float>> = list.zipWithNext()
for (pair in zipList) {
val fromValuePercentage = getValuePercentageForRange(pair.first, max, min)
val toValuePercentage = getValuePercentageForRange(pair.second, max, min)
Canvas(
modifier = modifier.fillMaxHeight(),
onDraw = {
val fromPoint = Offset(x = 0f, y = size.height.times(1 - fromValuePercentage))
val toPoint = Offset(x = size.width, y = size.height.times(1 - toValuePercentage))
val path = drawChartLineAndCreatePath(fromPoint = fromPoint, toPoint = toPoint, lineColor = lineColor)
fillChart(
path = path,
fromPoint = fromPoint,
toPoint = toPoint,
size = size,
gradient = gradient,
)
},
)
}
}
private fun DrawScope.drawChartLineAndCreatePath(fromPoint: Offset, toPoint: Offset, lineColor: Color): Path {
val path = Path()
path.moveTo(fromPoint.x, fromPoint.y)
path.lineTo(toPoint.x, toPoint.y)
drawPath(
path = path,
color = lineColor,
style = Stroke(width = 1f),
)
return path
}
private fun DrawScope.fillChart(path: Path, fromPoint: Offset, toPoint: Offset, size: Size, gradient: Brush) {
path.lineTo(toPoint.x, size.height)
path.lineTo(fromPoint.x, size.height)
path.lineTo(0f, fromPoint.y)
drawPath(
path = path,
brush = gradient,
)
}
private fun getValuePercentageForRange(value: Float, max: Float, min: Float): Float {
return if (max == min) { // to draw a straight line when all values are the same
val modifiedMax = max + 1
val modifiedMin = min - 1
(value - modifiedMin) / (modifiedMax - modifiedMin)
} else {
(value - min) / (max - min)
}
}
@Preview(widthDp = 150, heightDp = 150, showBackground = true)
@Composable
private fun Chart_Positive_Preview() {
TangemTheme(isDark = true) {
PriceChangesChart(
listOf(1f, 2f, 4f, 1f, 5f),
)
}
}
@Preview(widthDp = 150, heightDp = 150, showBackground = true)
@Composable
private fun Chart_Negative_Preview() {
TangemTheme(isDark = true) {
PriceChangesChart(
listOf(10f, 2f, 4f, 1f, 5f),
)
}
}