on the interweb it usually states that you need to rebuild the whole tree

me no like that 😉

@ron Yes, that's correct. The TreeView is not data driven in the same way as the TableView. I wonder if we can make that happen though.. hmm... Anyways, you can add an update function to your TreeItem instances so that the can be updated (probably by calling setText/setGraphic again).

The resize feature is working quite good now. I need to figure out how to add a listener to the resizing that occurs when you double click between two column headers though. Can't find a good hook.

@edvin the problem is that the list of photocategories is updated, I would need to write code that finds the right treeItem and then updates it with the new added children. Just calling setText/setGraphics I dont think will trigger the populate.

Currently I am thinking of adding observables on the value.children list so it will trigger when the array is changed.BTW this is the class

@User uploaded a file: Untitled

I am thinking that either in the cellformat or in the populate the list is made observable I wonder if I can then call the populate on the current parent of the list

in pseudocode

@User uploaded a file: Untitled

hmmz I need to do something at the scanning end too. probably fire an event or something

@edvin this http://myjavafx.blogspot.nl/2012/03/treeview-with-data-source.html might be interesting

@ron I will have a look at it and possibly make TreeView datadriven after I'm done with the resize feature. I have absolutely everything working now, including smart resizing when the header is double clicked. I have only the weighted resize feature left, and I found a better syntax as well. Hopefully this is ready to play with soon. (extreme alpha quality as it should be refactored if/when we feel it is working the way it should)

no hurry

(allthough in your case that does not mean much 😉 )

Haha 🙂

I figure documenting this monster will be harder than writing it. There are a lot of "rules" involved now that we support so many resize modes.

if you give me some code with examples I am happy to write the documentation for you

(instead of just jumping new features on you)

but at the same time, as I am not the developer of tornadofx but a user, I just yell the use cases I encounter

That's very generous Ron. In this case I think I must be the one to define the behavior, but I would be very happy if you have time to verify that it works the way I document it!

sure

Weigthed width is working now as well. Time to create a screencast to show you guys what I have so far. Will try to get it done tonight.

I will put that code in my project for now and see if I can get it to work and actually understand

that code is a bit brute force when there is a change, everything is rebuilt. I would think once you have listeners on all `TreeItem`'s you could just rebuild from there

@edvin: is it possible to call the populate from a listener?

@ron Absolutely. I will investigate how we can make this more flexible after the resize thing though.

I'm cursed. Was walking the dog just now and figured out how we can make the TableView responsive. When it is resized below a certain threshold we can make all the column headers align on the left side, with the cells on the right side. This is very handy for mobile but might be good for tables where width is constrained.

hmmz I thought I understood observable but clearly I dont

the children list is observable but when I add a changelistener to it, nothing seems to happen