Compose ConstraintLayout Extensions

ConstraintLayout.kt

@Composable
fun ConstraintLayoutScope.t2t(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    top.linkTo(reference.top, margin)
}

@Composable
fun ConstraintLayoutScope.b2b(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    bottom.linkTo(reference.bottom, margin)
}

@Composable
fun ConstraintLayoutScope.s2s(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    start.linkTo(reference.start, margin)
}

@Composable
fun ConstraintLayoutScope.e2e(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    end.linkTo(reference.end, margin)
}

@Composable
fun ConstraintLayoutScope.match(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    end.linkTo(reference.end, margin)
    start.linkTo(reference.start, margin)
}

@Composable
fun ConstraintLayoutScope.t2b(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    top.linkTo(reference.bottom, margin)
}

@Composable
fun ConstraintLayoutScope.b2t(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    bottom.linkTo(reference.top, margin)
}


@Composable
fun ConstraintLayoutScope.s2e(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    start.linkTo(reference.end, margin)
}

@Composable
fun ConstraintLayoutScope.e2s(
    ref: ConstrainedLayoutReference? = null,
    margin: Dp = 0.dp
): Constraint = {
    val reference = ref ?: parent
    end.linkTo(reference.start, margin)
}

operator fun (Constraint).plus(constraint: Constraint): ConstrainScope.() -> Unit {
    val target = this
    return {
        target()
        constraint()
    }
}