A question for < Igor Demin> I m using a `OnGloballyPosition kotlinlang #compose-desktop

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?

Full code without any Aurora parts

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

12/09/2021, 4:31 PM

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

Kirill Grouchnikov

12/09/2021, 4:37 PM

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

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

01/10/2022, 9:51 AM

If it is still relevant, I can investigate this.

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