Re: [Iup-users] Problem with Executeleaf_cb Callback

Kaz F Sat, 04 Dec 2021 01:53:05 -0800

I tried some more and I think I got close, but still couldn’t get it right. Below the space are various things I tried, with comments on outcome:

for cat in pairs(cats) do

modtree.addbranch = cat --add a branch for each module category

for _,module in pairs(cats[cat]) do --iter thru each category and populate branches with modules

local leaffunc = module.bindsettings

modtree.addleaf1 = module.label

-- iup.Message("",tostring(leaffunc)) --returns a different function each iteration like it should

--[[ function modtree:executeleaf_cb(id) --automatically grabs current leaf's node id

-- iup.Message(id,modtree.title) --test that prints mod name (SUCCESS)

-- leaffunc(t) --OPENS SAME DLG

-- module.bindsettings(t) --BROKEN

end ]]

-- modtree.executeleaf_cb = function(_) leaffunc(t) end --OPENS SAME DLG

-- modtree.executeleaf_cb = function(_) module.bindsettings(t) end --OPENS SAME DLG

-- modtree.executeleaf_cb = module.bindsettings(t) --BROKEN (spams mod dlgs on open and crashes)

-- modtree.executeleaf_cb = leaffunc(t) --BROKEN (spam and crash)

end

Something about nodes seems to keep the callbacks from sticking. Maybe because the object in question seems to be the tree rather than the nodes, I imagine the callback gets assigned to the whole tree instead. Then I tried making an array to store the info, but it’s making the app crash. I don’t think I’m handling calling a function with a parameter from an array correctly. I need to get “t” into module.bindsettings().

local modarray = {}

for cat in pairs(cats) do

modtree.addbranch = cat --add a branch for each module category

table.insert(modarray, cat) --placeholders so leaf indices will match their IDs

for _,module in pairs(cats[cat]) do

local leaffunc = module.bindsettings

-- iup.Message("",tostring(leaffunc)) --returns a different function id each iteration like it should

modtree.addleaf1 = module.label

table.insert(modarray, leaffunc) --is the name enough? It didn’t work when I tried adding parameters or wrapping the variable in an anonymous function

end

modtree.executeleaf_cb = function(id)

modarray[id](t) -- crashes here

end

From: Antonio Scuri
Sent: Friday, December 3, 2021 8:01 AM
To: IUP discussion list.
Subject: Re: [Iup-users] Problem with Executeleaf_cb Callback

I suggest you to store in each node some information that will allow you to retrieve the correct module and be able to show it.

Best,

Scuri

Em seg., 29 de nov. de 2021 às 23:11, Kaz F <kaz.fox...@gmail.com> escreveu:

I’m trying to populate a tree with the names of modules (leaves) so when you double-click on the name, the module dialog should pop up.
It almost works, but for some reason, every leaf opens the same module. How can I fix that?
This is the part of the code I have:

local modtree = iup.flattree{rastersize = "400x500"} --are there any more-flexible options than rastersize?
        modtree["addbranch-1"] = "MODULES" --add root node

        for cat in pairs(cats) do
                modtree.addbranch = cat --add a branch for each module category
                for _,module in pairs(cats[cat]) do --populate branches with modules
                       modtree.addleaf1 = module.label
                       function modtree:executeleaf_cb() module.bindsettings(t) end
                end
        end

Each module script starts with this code:

local module = {}
function module.bindsettings(profile)
…contains code about the dialog

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Re: [Iup-users] Problem with Executeleaf_cb Callback

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