ListModel of 2D arrays

[Ph0non]

I understand the dynamic list example quite well to create dynamic lists on my own. But is it also possible the use an 2D array und use the QML TabView?

[barche]

Hi,

Do you mean a TableView? If so, it is usable with a ListModel, the so-called roles are the columns in that case. To convert the example to Julia, you could just create a composite type named Book with fields title and author and pass an array of those to the ListModel constructor.

[Ph0non]

Yes, excuse me, I mean TableView.

[Ph0non]

type Book
  title::String
  author::String
end

  Book1 = Book("A Masterpiece", "Gabriel")
  Book2 = Book("Brilliance", "Jens")
  Book3 = Book("Outstanding", "Frederik")
  libmod = [Book1, Book2, Book3]
  @qmlset qmlcontext().libraryModel = ListModel(libmod)

But how must my TableView look like? I tried this without success

    TableView {
        id: tableView
        x: 25
        y: 130
        width: 750
        height: 420

        TableViewColumn {
            role: title
            title: "Title"
        }
        model: libraryModel
    }

My goal is a table like this (generated at runtime with variable columns and rows)

nuclides ╲ years │  2016   2017   2018   2019   2020   2021   2022   2023   2024   2025
─────────────────┼─────────────────────────────────────────────────────────────────────
Co60             │  5.46   5.47   5.49   5.49   5.39   4.79   4.27   3.82   3.41   3.05
Cs137            │  9.29  10.62  11.13  11.31  11.26  11.01  10.78  10.55  10.33  10.12
Ni63             │  78.9   77.0  75.38  74.48   74.6  75.63  76.46  77.25  77.98  78.64
Sr90             │  0.35   0.91    2.0   2.72   2.75   2.57   2.49   2.38   2.28   2.19
Pu241            │   1.0    1.0    1.0    1.0    1.0    1.0    1.0    1.0    1.0    1.0
Am241            │   5.0    5.0    5.0    5.0    5.0    5.0    5.0    5.0    5.0    5.0

For the library example I needed role: "title", Doohhh.

[barche]

The TabelView QML component is in fact not designed to display 2D data. I found a workaround at: http://stackoverflow.com/questions/27230818/qml-tableview-with-dynamic-number-of-columns

It is used in the example I just committed.

It should be possible to streamline this approach a bit by allowing to use a 2D array in the ListModel, I'll leave this issue open as a reminder to add that.

[Ph0non]

I could workaround to show the nuclides in a seprate ListView left from the TableView. I will try to reproduce your example. Thank you very much for your help.

[barche]

This issue makes me realize that basing ListModel around a Julia Array is too restrictive. I will relax the requirements on the argument for the ListModel constructor in the future, so any list-like type (providing indexing and size info and so on) is usable. That would then extend to the 2D array by providing an appropriate getindex/setindex to obtain or set a row.