Merge "Convert interpolated colors to original color space" into main

    return animateElementValueAsState(value, key, SharedColorType, canOverflow = false)

}

private object SharedColorType : SharedValueType<Color, ColorDelta> {

internal object SharedColorType : SharedValueType<Color, ColorDelta> {

    override val unspecifiedValue: Color = Color.Unspecified

    override val zeroDeltaValue: ColorDelta = ColorDelta(0f, 0f, 0f, 0f)

                alpha = aOklab.alpha + b.alpha * bWeight,

                colorSpace = ColorSpaces.Oklab,

            )

            .convert(aOklab.colorSpace)

            .convert(a.colorSpace)

    }

}

/**

 * Represents the diff between two colors in the same color space.

 * Represents the diff between two colors in the Oklab color space.

 *

 * Note: This class is necessary because Color() checks the bounds of its values and UncheckedColor

 * is internal.

 */

private class ColorDelta(val red: Float, val green: Float, val blue: Float, val alpha: Float)

internal class ColorDelta(val red: Float, val green: Float, val blue: Float, val alpha: Float)

@Composable

internal fun <T> animateSharedValueAsState(

import androidx.compose.animation.core.LinearEasing

import androidx.compose.animation.core.tween

import androidx.compose.foundation.background

import androidx.compose.foundation.gestures.Orientation

import androidx.compose.foundation.layout.Box

import androidx.compose.foundation.layout.fillMaxSize

import androidx.compose.runtime.Composable

import androidx.compose.runtime.LaunchedEffect

import androidx.compose.runtime.SideEffect

        assertThat(lastValues[SceneA]).isWithin(0.001f).of(100f)

        assertThat(lastValues[SceneB]).isWithin(0.001f).of(100f)

    }

    @Test

    fun interpolatedColor() {

        val a = Color.Red

        val b = Color.Green

        val delta = SharedColorType.diff(b, a) // b - a

        val interpolated = SharedColorType.addWeighted(a, delta, 0.5f) // a + (b - a) * 0.5f

        rule.setContent { Box(Modifier.fillMaxSize().background(interpolated)) }

    }

}