Converting Point to sat val

MainActivity.kt

fun pointToSatVal(pointX: Float, pointY: Float): Pair<Float, Float> {
    val width = satValPanel.width()
    val height = satValPanel.height()
    val x = when {
        pointX < satValPanel.left -> 0f
        pointX > satValPanel.right -> width
        else -> pointX - satValPanel.left
    }
    val y = when {
        pointY < satValPanel.top -> 0f
        pointY > satValPanel.bottom -> height
        else -> pointY - satValPanel.top
    }
    val satPoint = 1f / width * x
    val valuePoint = 1f - 1f / height * y
    return satPoint to valuePoint
}

scope.collectForPress(interactionSource) { pressPosition ->
    val pressPositionOffset = Offset(
        pressPosition.x.coerceIn(0f..satValSize.width),
        pressPosition.y.coerceIn(0f..satValSize.height)
    )

    pressOffset.value = pressPositionOffset
    val (satPoint, valuePoint) = pointToSatVal(pressPositionOffset.x, pressPositionOffset.y)
    sat = satPoint
    value = valuePoint
    setSatVal(sat, value)
}

drawCircle(
    color = Color.White,
    radius = 8.dp.toPx(),
    center = pressOffset.value,
    style = Stroke(
        width = 2.dp.toPx()
    )
)

drawCircle(
    color = Color.White,
    radius = 2.dp.toPx(),
    center = pressOffset.value,
)