A question for <@U015TKX93PD>. I'm using a `OnGloballyPositionedModifier` to determine the position ...

# compose-desktop

[Kirill Grouchnikov]

A question for @Igor Demin. I'm using a OnGloballyPositionedModifier to determine the position of this combobox so that I can place the popup / dropdown window accordingly. But in this mode where the window decorations come from the system, both coordinates.localToRoot(Offset.Zero) and coordinates.localToWindow(Offset.Zero) give me the same value of Offset(110.0, 99.0). Shouldn't localToWindow account for the height of the title bar?

[Kirill Grouchnikov]

Full code without any Aurora parts

[Kirill Grouchnikov]

private class MyLocator :
    OnGloballyPositionedModifier {
    override fun onGloballyPositioned(coordinates: LayoutCoordinates) {
        println("local to root ${coordinates.localToRoot(Offset.Zero)}")
        println("local to window ${coordinates.localToWindow(Offset.Zero)}")
    }
}

@Composable
private fun Modifier.myLocator() = this.then(
    MyLocator()
)

fun main() = application {
    val state = rememberWindowState(
        placement = WindowPlacement.Floating,
        position = WindowPosition.Aligned(Alignment.Center),
        size = DpSize(220.dp, 150.dp)
    )

    Window(
        title = "Aurora Demo",
        state = state,
        undecorated = false,
        onCloseRequest = ::exitApplication
    ) {
        Row(
            modifier = Modifier.fillMaxSize(),
            horizontalArrangement = Arrangement.Center,
            verticalAlignment = Alignment.CenterVertically,
        ) {
            Box(modifier = Modifier.size(50.dp).background(Color.Red).myLocator())
        }
    }
}

[olonho]

@Kirill Grouchnikov Igor is on vacations, so unlikely could answer

[Kirill Grouchnikov]

Ah well, I'd go for an answer from somebody else then 🙂

[Kirill Grouchnikov]

In the meanwhile my fix for popup placement in Aurora in undecorated vs decorated mode is to look at ComposeWindow.getRootPane().getLocationOnScreen() instead of ComposeWindow.getLocationOnScreen()

[Igor Demin]

If it is still relevant, I can investigate this.