@carlw thanks 🙂 I did not know about these methods. But it does not quite fulfill my requirement. I am using undecorated, transparent stage with transparent scene fill. These customization I can't make using either openModal/Window. Here is my current code which I am using to open a new window

fun createWindow(view: WindowView): Stage {
    val scene = Scene(view.root)
    scene.fill = Color.TRANSPARENT

    val stage = Stage()
    stage.initStyle(StageStyle.TRANSPARENT)
    stage.hookGlobalShortcuts()

    stage.scene = scene
    ResizeHelper.addResizeListener(stage)
    FX.applyStylesheetsTo(scene)
    return stage
}

val stage = createWindow(MyView())
stage.initOwner(primaryStage)
stage.show()

ResizeHelper is a utility class for resizing undecorated stage.

does anyone know why there is no error catching in the event bus when iterating over subscriptions?

looking at EventBus.kt:89

@anidotnet Does something like this work for you?

Customizing_Second_Stage___Scene.kt

@Romanow there's an app-wide default error handler that you can set if a subscribe() function threw an exception. are you asking about an error in delivery like a reference that fails in EventBus.kt or how to handle a business exception that occurs in a subscribe (ex, a bad parameter)

no, more that when an error happens the execution of the event bus processing stops because it breaks the foreach loop.

just was wondering was that a conscious decision or an oversight

...checking

I think it should continue

@edvin @Romanow This code demonstrates Roman's comment about EventBus processing. If an event is thrown, the remaining subscriptions may not be processed (depending on the subscription ordering). I think processing should continue to all interested parties. The workaround is to have all subscribe() functions carry a try / catch-all block to ensure that they never throw exceptions. This leads to boilerplate which might be best handled with an onError argument to subscribe. That way, the invoke() in EventBus can supply the try / catch-all and processing can continue by keeping the loop intact.

With the code above, 'BAD' may get transmitted to the secondary receiver textfield in some cases because the subscriptions are a HashSet and ordering is undefined. LinkedHashSet might give more consistent behavior.

@carlw perfect solution. Thanks

Using a DoubleExpression to get immediate feedback

also an interesting pattern - when subscribing for events - the subscription behaves differently in case of UICompoents vs services

for controllers and such - subscription is always processed, while for UIComponents - only IF the view is docked. Component.kt:279

Code_In_question.kt

so it's illegal to register for events in a view's init block - would be nice to have an else branch in that if statement with a warning of some sort

the problem with this approach is also that if you want only one subscription to be done you cannot use onDock as that may be called multiple times..

will need to do that in a controller as a workaround...

I’ve searched quite a bit, but couldn’t find a way of adding an image to a

TreeView

items. Can anyone point me to a sample?

@orangy Use this constructor - https://docs.oracle.com/javase/8/javafx/api/javafx/scene/control/TreeItem.html#TreeItem-T-javafx.scene.Node-

I don’t use constructors, I’m using

cellFormat

. Also, what’s

Node

? I’ve seen

iconProperty

, but couldn’t yet figure out where to get a `Node`…

Everything that you see on a JavaFX scene-graph is a node.

So, for example, you can pass an instance of ImageView as a parameter for graphic and it will be shown on the TreeItem

@orangy It follows a common theme with many other controls in JavaFX. You can set any node to the

graphic

property of the

TreeItem

, including an

ImageView

.

You can check this example - https://docs.oracle.com/javafx/2/ui_controls/tree-view.htm

Thanks, got it to next step. It now complains

com.sun.javafx.iio.ImageStorageException: No loader for image data

Is SVG supported at all?

Looks like I need a 3rd party lib for that…

Sadly, SVG is a bit of a pain in JavaFX. There's the built in

SVGPath

, and TornadoFX has some helpful wrappers, but I don't really use them.