kotlinlang #tornadofx

vm.statusProperty.onChange { <http://logger.info|logger.info> { "prop change:$it" } }
                binding.onChange { <http://logger.info|logger.info> { "binding change: $it" } }

bj0

08/28/2018, 5:08 PM

I don't understand why the first one fires but the second one doesn't

carlw

08/28/2018, 5:08 PM

you can kill the "tg" reference and bind to display in my previous example

seiv

08/28/2018, 5:14 PM

Hi, I added enableWhen in ItemViewModel example PersonEditor.kt

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button("Save") {
		enableWhen(controller.selectedPerson.dirty)
                setOnAction {
                    controller.selectedPerson.commit()
                }
            }

seiv

08/28/2018, 5:15 PM

but it's not flag when I edit phonenumbers.. how to fix it?

bj0

08/28/2018, 5:21 PM

@carlw I modified yours a little bit, I found that if you change your

error {

label and error {

in the

Stylesheet

it stops working

-.kt

bj0

08/28/2018, 5:22 PM

I guess because your

clear

clears out the

label

class that was there originally

carlw

08/28/2018, 5:23 PM

@bj0 this is another approach. not crazy about the When statement but it's binding for everything

Uses_bindClass_and_JavaFX_When.kt

carlw

08/28/2018, 5:24 PM

looking at replacing it with a function

carlw

08/28/2018, 5:30 PM

@bj0 i like this better than the JavaFX when

Binding_with_Kotlin_when__.kt

bj0

08/28/2018, 5:31 PM

thats basically what

nonNullObjectBinding

is supposed to do

bj0

08/28/2018, 5:33 PM

this is what I was trying to do, but I think my dynamically created object binding is being garbage collected

-.kt

carlw

08/28/2018, 5:35 PM

yeah. i brought that out into a class variable so it will stay for the life of the object

carlw

08/28/2018, 5:35 PM

http://bekwam.blogspot.com/2015/08/invalidationlistener-not-called.html

carlw

08/28/2018, 5:35 PM

an old one but still relevant

bj0

08/28/2018, 5:39 PM

i think that was my original problem, I thought binding it would keep a reference

chickenfresh

08/28/2018, 9:02 PM

@carlw why

firstPos

could be a problem?

chickenfresh

08/28/2018, 9:03 PM

i think its nothing but pre-calculated non-abstract value

chickenfresh

08/28/2018, 9:27 PM

fixed problem with replacing

text = null

graphic = text("")

carlw

08/28/2018, 9:32 PM

yeah. graphic = null works too

carlw

08/28/2018, 9:33 PM

that's what i meant by "resetting empty ones"...text=null; userData=null; graphic=null

chickenfresh

08/28/2018, 9:34 PM

but I don’t have

text=null

and

userData = null

for now, would it cause any problems? I think they’re nulls already

chickenfresh

08/28/2018, 9:35 PM

anyway

graphic

was missed

chickenfresh

08/28/2018, 9:35 PM

and ghosts are beaten 🙂

carlw

08/28/2018, 9:44 PM

if you set them at any point (text=...), i would add the null resets. you might be getting a bunch of fresh cells that are masking the problem

chickenfresh

08/28/2018, 10:00 PM

Okay, just haven’t faced a problems yet on practice and wondered where I could

bj0

08/28/2018, 10:29 PM

@carlw the more I think about it, it seems like

bindClass

should probably store a reference somewhere to prevent garbage collection. this would make it work the same way as other binding calls in the DSL:

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text(vm.isActiveProperty.stringBinding { (it == true) "Stop" else "Start" })

the dynamically created binding stays alive in this case

chickenfresh

08/28/2018, 11:21 PM

@carlw what’s the best way to store data about session (such as what indexes I’ve been seeing last time, prefH&W and etc)? In iOS I have CoreData component, in c++ and python sqlite renamed to something less attractive, but may be there are some standarts? i.o it shouldn’t be temp folder and as the App is supposed to work with any system which w’d be able to run jre - I haven’t found any ultimate solution

pike

08/29/2018, 12:48 AM

Is it possible to make columns in a table from an array property?

pike

08/29/2018, 12:54 AM

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ResponseModel: JsonModel {
   monthlySalesProperty = SimpleListProperty<DailyCategoryModel>()
}
DailyCategoryModel {
   categoriesProperty = SimpleListProperty<CategoryModel>()
}
CategoryModel {
   categoryProperty = SimpleStringProperty()
   valueProperty = SimpleIntegerProperty()
}

tableview(model.monthlySales) {
    column<DailyCategoryModel, Number>("Total", {it.value.categoriesProperty.filter{ it.categoryProperty == "Total"}.last{it.value}
}