nim language ,gintro demo with two columns in a listview / gtktreeview and sortable

Question

For nim language there is only one gui toolkit working for me and that is gintro.

The democode listview compiles and runs nice on my netbsd. Source: http://ssalewski.de/gintroreadme.html

But I need a listview(gtktreeview) with two columns, I looked into nim.gtk but can't figure out which "casts" I should spell.

The code in the demo program:

let gtype = typeFromName("gchararray")
let store = newListStore(N_COLUMNS, cast[pointer]( unsafeaddr gtype)) 
# cast due to bug in gtk.nim

Works nice for N_COLUMNS=1 but not N_COLUMNS:2

Here is the relevant part in nim.gtk:

proc newListStore*(nColumns: int; types: GTypeArray): ListStore =
    let gobj = gtk_list_store_newv(int32(nColumns), types)

Second when I have multiple colums I would like to make it sortable by clicking on the header (like an excel table)

Do you use absolutely the same code for `N_COLUMNS=2`? Because it expects you to pass array of types containing 2 elements, not 1 — Alexander Dmitriev, Mar 13 '19 at 08:45

score 1 · Answer 1 · answered Mar 13 '19 at 23:03

I think you need something like this:

let gtypes = [typeFromName("gchararray"), typeFromName("gchararray")] # Be sure to change the types to whatever you need.
let store = newListStore(N_COLUMNS, addr gtype[0]) # You shouldn't need this weird cast here.

Untested but should work. Feel free to join our Gitter/IRC if you need more help :)

nim language ,gintro demo with two columns in a listview / gtktreeview and sortable

1 Answers1