Coverage Summary for Class: ExpandableChevronKt (com.vsevolodganin.clicktrack.ui.piece)

 package com.vsevolodganin.clicktrack.ui.piece
 
 import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.material.Icon
 import androidx.compose.material.LocalContentAlpha
 import androidx.compose.material.LocalContentColor
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.SolidColor
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.graphics.vector.PathNode
 import androidx.compose.ui.graphics.vector.addPathNodes
 import androidx.compose.ui.unit.dp
 import com.vsevolodganin.clicktrack.utils.compose.Preview
 
 @Composable
 fun ExpandableChevron(
     isExpanded: Boolean,
     modifier: Modifier = Modifier,
     tint: Color = LocalContentColor.current.copy(alpha = LocalContentAlpha.current),
 ) {
     val animatedProgress by animateFloatAsState(if (isExpanded) 1f else 0f)
 
     val collapsedPathNodes = remember { addPathNodes(COLLAPSED_PATH_DATA) }
     val expandedPathNodes = remember { addPathNodes(EXPANDED_PATH_DATA) }
 
     val morphedPathNodes = lerp(collapsedPathNodes, expandedPathNodes, animatedProgress)
 
     Icon(
         imageVector = ImageVector.Builder(
             defaultWidth = 24.dp,
             defaultHeight = 24.dp,
             viewportWidth = 24f,
             viewportHeight = 24f,
         ).addPath(pathData = morphedPathNodes, fill = SolidColor(Color.White)).build(),
         contentDescription = null,
         modifier = modifier,
         tint = tint,
     )
 }
 
 private fun lerp(fromPathNodes: List<PathNode>, toPathNodes: List<PathNode>, t: Float): List<PathNode> {
     return fromPathNodes.mapIndexed { i, from ->
         val to = toPathNodes[i]
         if (from is PathNode.MoveTo && to is PathNode.MoveTo) {
             PathNode.MoveTo(
                 androidx.compose.ui.util.lerp(from.x, to.x, t),
                 androidx.compose.ui.util.lerp(from.y, to.y, t),
             )
         } else if (from is PathNode.LineTo && to is PathNode.LineTo) {
             PathNode.LineTo(
                 androidx.compose.ui.util.lerp(from.x, to.x, t),
                 androidx.compose.ui.util.lerp(from.y, to.y, t),
             )
         } else {
             // We only support MoveTo and LineTo commands in this demo for brevity.
             throw IllegalStateException("Unsupported SVG PathNode command")
         }
     }
 }
 
 private const val COLLAPSED_PATH_DATA = "M 12 13.17 L 7.41 8.59 L 6 10 L 12 16 L 18 10 L 16.59 8.59 L 12 13.17"
 private const val EXPANDED_PATH_DATA = "M 12 8 L 6 14 L 7.41 15.41 L 12 10.83 L 16.59 15.41 L 18 14 L 12 8"
 
 @Preview
 @Composable
 private fun Preview() {
     ExpandableChevron(false)
 }