Hello, was using jp compose with custom built `Jav...

# compose-desktop

[Ananiya]

Hello, was using jp compose with custom built JavaFXPanel composable [https://github.com/JetBrains/compose-jb/issues/519#issuecomment-804030550] and was trying to display a stream of data from Channels inside it however when Recomposing JavaFXPanel it suddenly stop to listen for the channel and clears the view so to figure out what's going on created a simple composable containing either of those

// v1
JavaFXPanel(jfxpanel: JFXPanel, container: Container){
     Platform.runLater { 
        print("hello")
    }
}
// v2
JavaFXPanel(jfxpanel: JFXPanel, container: Container){
     CoroutineScope(JavaFx).launch { 
        print("hello")
    }
}

overall started with v1 prints hello and never made it when it recompose, v2 was identical too
also tried to create custom panel by adding SideEffect which barely do to a thing

fun JavaFXPanel(
    root: Container,
    panel: JFXPanel,
 onCreate: () -> Unit


) {
    val container = remember { JPanel() }
    val density = LocalDensity.current.density

    Layout(
        content =
        {}
        ,
        modifier = Modifier.onGloballyPositioned { childCoordinates ->
            val coordinates = childCoordinates.parentCoordinates!!
            val location = coordinates.localToWindow(Offset.Zero).round()
            val size = coordinates.size
            container.setBounds(
                (location.x / density).toInt(),
                (location.y / density).toInt(),
                (size.width / density).toInt(),
                (size.height / density).toInt()
            )
            container.validate()
            container.repaint()
        },
        measurePolicy = { _, _ ->
            layout(0, 0) {}
        }
    )

    DisposableEffect(Unit) {

        onCreate()
        container.layout = BorderLayout(0, 0)
        container.add(panel)
        

        root.add(container)


        onDispose {
            root.remove(container)
        }
    }

    SideEffect {

        onCreate()
    }
}