I would like to apply a draw transform to a wrapped `IndicationInstance`, but `ContentDrawScope` doe...

# compose

[tad]

I would like to apply a draw transform to a wrapped IndicationInstance, but ContentDrawScope doesn't allow for that.

[tad]

class ClipPathIndication(
    val indication: Indication,
    val path: Path
) : Indication {
    @Composable
    override fun rememberUpdatedInstance(interactionSource: InteractionSource): IndicationInstance {
        val innerInstance = indication.rememberUpdatedInstance(interactionSource)
        return remember(interactionSource, this, innerInstance) {
            Instance(innerInstance, path)
        }
    }

    class Instance(
        val innerInstance: IndicationInstance,
        val path: Path
    ) : IndicationInstance {
        override fun ContentDrawScope.drawIndication() {
            drawContent()
            clipPath(path) {
                innerInstance.drawIndication() // Not allowed; we're in DrawScope now.
            }
        }
    }
}

[Nader Jawad]

I think you need to use a with block and the corresponding this reference like so:

override fun ContentDrawScope.drawIndication() {
            drawContent()
            clipPath(path) {
                with (innerInstance) {
                    [e-mail]()
                }
            }
        }

[tad]

ah, let me try that

[tad]

hmm, wouldn't that draw in the outer scope though?

[Nader Jawad]

ContentDrawScope is a sub interface of DrawScope so the instance that you are seeing in the clipPath trailing lambda is the same instance. It's just that you need to get a ContentDrawScope receiver scope to issue the drawIndication call. Hence the need to distinguish between which this reference