Thank you Christian. I was going to write an example similar to yours but
didn't have time at the moment.
Bill
On May 4, 2017 3:03 PM, "Christian Kanzian" <christian.kanz...@gmx.at>
wrote:
> Am Donnerstag, 4. Mai 2017, 20:02:02 CEST schrieb Holger Klemm:
> > Thanks for the function. I do not understand how I must use that :-(
> > choice_table?
>
> AFAIK a combobox stores its entries like a lua table with indices.
> Updating lua table entries can only be done be looping over the entries?
> That
> is what Bill suggest in his reply.
>
> Merging your test.lua with Bill's answer like that works for me:
>
> local dt = require "darktable"
>
> test_combobox = dt.new_widget("combobox")
> {
> label = 'test combobox',
> tooltip ='',
> value = 1,
> editable=true,
> "1","2","3","4","5",
> reset_callback = function(self_reset)
> self_reset.value = 1
> end
> }
>
>
> local function update_combobox_choices(combobox, choice_table, selected)
> local items = #combobox
> local choices = #choice_table
> for i, name in ipairs(choice_table) do
> combobox[i] = name
> end
> if choices < items then
> for j = items, choices + 1, -1 do
> combobox[j] = nil
> end
> end
> combobox.value = selected
> end
>
> local new_choices = {"XX","YY"}
>
> add_button = dt.new_widget("button")
> {
> label = 'change combobox',
> clicked_callback = function (x)
> update_combobox_choices(test_combobox,new_choices,2)
> dt.print("combobox changed")
> end
> }
>
>
> local import_widget = dt.new_widget("box") {
> test_combobox,
> add_button,
>
> }
>
> Christian
>
> >
> > Am Mittwoch, 3. Mai 2017, 15:55:42 CEST schrieb William Ferguson:
> > > local function update_combobox_choices(combobox, choice_table,
> selected)
> > >
> > > local items = #combobox
> > > local choices = #choice_table
> > > for i, name in ipairs(choice_table) do
> > >
> > > combobox[i] = name
> > >
> > > end
> > > if choices < items then
> > >
> > > for j = items, choices + 1, -1 do
> > >
> > > combobox[j] = nil
> > >
> > > end
> > >
> > > end
> > > combobox.value = selected
> > >
> > > end
> >
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