Help on ScrollFrame with LUA

[zork]

I wrote DiscoKugel 2.
http://www.wowinterface.com/forums/s...ad.php?t=45817

Man this is awesome.

[gmarco]

Zork your code is really cool but surely too much complex for a newbie programmer like me :-)

Slowly I have finished my alpha version of the addons, but I am plenty of questions. So I try to ask for finding more help.

I upload a picture which represent a ganklist. I'd like to click on a name, this set the text in the text input and then I can press del to delete it from the list or add a new name to it.

Now I'd like to ask.

1) in the frame I have created I have the button text that are "centered" ... I am trying to let them left justify but none of the methods I used till now seems to work.

2) Is possible to let the buttons to react to the OnClick event ? Something like:
button:SetScript("OnClick", function() ... bla bla

3) Is possible to have the scrollframe "bordered" like the input box below ?

4) How can I make a orizontal bar for divide the zones of a frame ?


The code is now:

-- Configuration Panel -------------------------------------------------------------------------------------
 
local options = CreateFrame("Frame", ADDON.."Options", InterfaceOptionsFramePanelContainer)
options.name = GetAddOnMetadata(ADDON, "Title") or ADDON
InterfaceOptions_AddCategory(options)
 
local title = options:CreateFontString("$parentTitle", "ARTWORK", "GameFontNormalLarge")
title:SetPoint("TOPLEFT", 16, -16)
title:SetText(options.name)
options.title = title
 
local subtext = options:CreateFontString("$parentSubText", "ARTWORK", "GameFontHighlightSmall")
subtext:SetPoint("TOPLEFT", title, "BOTTOMLEFT", 0, -8)
subtext:SetPoint("RIGHT", -32, 0)
subtext:SetHeight(32)
subtext:SetJustifyH("LEFT")
subtext:SetJustifyV("TOP")
subtext:SetText(GetAddOnMetadata(ADDON, "Notes"))
options.subtext = subtext
 
local enable = CreateFrame("CheckButton", "$parentEnable", options, "InterfaceOptionsCheckButtonTemplate")
enable:SetPoint("TOPLEFT", subtext, "BOTTOMLEFT", -2, -8)
enable.Text:SetText(ENABLE)
enable.tooltipText = "Enable monitoring"
enable:SetChecked(REMGANK_ENABLE);
enable:SetScript("OnClick", function(self)
    
    if enable:GetChecked() then 
        REMGANK_ENABLE = 1
        print(string_format("%s: is enabled", prgname)) 
        frame_cleu:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED")
    else 
        REMGANK_ENABLE = 0
        print(string_format("%s: is disabled",prgname))
        frame_cleu:UnregisterEvent("COMBAT_LOG_EVENT_UNFILTERED")
    end 
    
end)
 
 -- Add button
local RemGank_Add_Player_Button = CreateFrame("button","RemGank_Add_Player_Button", options, "UIPanelButtonTemplate")
RemGank_Add_Player_Button:SetHeight(25)
RemGank_Add_Player_Button:SetWidth(50)
RemGank_Add_Player_Button:SetPoint("BOTTOMRIGHT", options, "BOTTOMRIGHT", -12, 12)
RemGank_Add_Player_Button:SetText("Add")
RemGank_Add_Player_Button:SetScript("OnClick", 
    function()
 
    end) 
    
-- Del Button
local RemGank_Del_Player_Button = CreateFrame("button","RemGank_Del_Player_Button", options, "UIPanelButtonTemplate")
RemGank_Del_Player_Button:SetHeight(25)
RemGank_Del_Player_Button:SetWidth(50)
RemGank_Del_Player_Button:SetPoint("BOTTOMRIGHT", options, "BOTTOMRIGHT", -72, 12)
RemGank_Del_Player_Button:SetText("Del")
RemGank_Del_Player_Button:SetScript("OnClick",  
    function()  
    
    end) 
 
-- Text Input
local RemGank_Input_eb2 = CreateFrame("EditBox","eb2",options,"InputBoxTemplate")
RemGank_Input_eb2:SetMaxLetters(15)
RemGank_Input_eb2:SetFont(framefontn,framefonth)
RemGank_Input_eb2:SetAutoFocus(disable)
RemGank_Input_eb2:SetSize(192, 24)
RemGank_Input_eb2:SetPoint("BOTTOMRIGHT", options, "BOTTOMRIGHT", -132, 12)
 
local scrollFrame = CreateFrame("ScrollFrame", "MyFirstNotReallyScrollFrame", options, "FauxScrollFrameTemplate")
scrollFrame:SetWidth(BUTTON_WIDTH * 3)
scrollFrame:SetHeight(NUM_BUTTONS * BUTTON_HEIGHT)
scrollFrame:SetPoint("BOTTOMRIGHT", options, "BOTTOMRIGHT", -38, 64)
scrollFrame:EnableMouse(true)
scrollFrame:SetScript("OnDragStart", function(self) self:StartMoving() end)
scrollFrame:SetScript("OnDragStop", function(self) self:StopMovingOrSizing() end)
scrollFrame:Show()
 
scrollFrame:SetScript("OnVerticalScroll", function(self, offset)
    FauxScrollFrame_OnVerticalScroll(self, offset, BUTTON_HEIGHT, RemGank_ListFrame_Update(self))
end)
 
for i = 1, NUM_BUTTONS do
    local button = CreateFrame("Button", nil, scrollFrame:GetParent())
    if i == 1 then
        button:SetPoint("TOP", scrollFrame)
    else
        button:SetPoint("TOP", buttons[i - 1], "BOTTOM")
        -- button:SetPoint("TOP", buttons[i - 1],  "LEFT", 0, 0)
    end
    button:SetNormalFontObject("GameFontNormal")
    button:SetSize(BUTTON_WIDTH, BUTTON_HEIGHT)
    button:SetText(RemGankLS[i])
    button:SetScript("OnClick",  function() 
        RemGank_Input_eb2:SetText(RemGankLS[i])
    end) 
    buttons[i] = button
end
 
-- Updating ?
print ("DEBUG: Force updating")
RemGank_ListFrame_Update(scrollFrame)
 
function options.refresh()
    enable:SetChecked(REMGANK_ENABLE)
    RemGank_ListFrame_Update(scrollFrame)
end
 
if LibStub and LibStub("LibAboutPanel", true) then
    options.about = LibStub("LibAboutPanel").new(options.name, ADDON)
end

Thanks again to all for your attention

[gmarco]

Hi all,

continuing with experiment I have fixed some of the previous iussues.

2) Is possible to let the buttons to react to the OnClick event ? Something like: button:SetScript("OnClick", function() ... bla bla

Now it works. I let it working removing:

scrollFrame:EnableMouse(true)
scrollFrame:Show()

from the scrollframe definition.

1) in the frame I have created I have the button text that are "centered" ... I am trying to let them left justify but none of the methods I used till now seems to work.

I have used a different approach here... I used different templates for buttons so I justified them leaving the text centered. Later I'll try to understand how to make a left justified button text :-)


3) and 4) are still under investigation :-) but now not are so important now :-)


But now I have a different problem.
The scrollframe seems to loose the first (or the last) position.

I'll explain better with a picture.



The same iussue happens for the last item. Is it intended that the slider works in this way (it seems to me inverse) ??


Thanks very much for attention to everyone.

EDIT: I attach also a picture and the code of the (almost) finished addon.

[Phanx]

Originally Posted by gmarco Later I'll try to understand how to make a left justified button text :-)

button:GetFontString():SetJustifyH("LEFT")

However, depending on the template used, you may need to adjust the font string's points as well. For example, if the font string is anchored by its CENTER point to the button's CENTER point, left-aligning the text will make it start in the center of the button, so you'd need to do something like this:

local fontstring = button:GetFontString()
fontstring:ClearAllPoints()
fontstring:SetPoint("LEFT", button, 8, 0)
fontstring:SetPoint("RIGHT", button, -8, 0)
fontstring:SetJustifyH("LEFT")

[Seerah]

Not if the fontstring has a width set, iirc.

[gmarco]

Thanks Phanx and Seerah for answers.

I have checked the Phanx code and it works nicely (the 2nd bigger one) but I think I'll leave the button as they are now, because it doesn't work with all buttons templates or with no template at all.
Btw finally I understood how it works. As usual it was a little bit more complicated then I thought :-)

Ok. In the meantime I have solved also the question nr.3 I asked:

3) Is possible to have the scrollframe "bordered" like the input box below ?

I checked the rtest by Zork (thanks) and I have discovered the Templates world :-)

Now I am investigating why the scrollframe works nicely in the test addon I make following the Lombra suggestion/code posted at the beginning of this thread, while it have the problem I have pointed out with the picture when I build the scrollist array from my data.

If I used something like:

RemGankLS = { "qui", "quo", "qua", etc etc }

It works as expected and I don't have the iussue shown in the picture.

But I have a table in this way saved:

RemGankDB = {
    ["qui"] = {
        ["name"] = "qui",
        ["date"] = "06.01.2013 19:28:24",
        ["desc"] = "generic ganker",
        ["lastloc"] = "Massiccio del Kun-Lai/Presidio del Fuoco Yongqi",
        ["nrkill"] = 1,
    },
    ["quo"] = {
        ["name"] = "quo",
        ["date"] = "03.02.2013 17:35:10",
        ["desc"] = "generic ganker",
        ["lastloc"] = "Vallata dell'Eterna Primavera/Volta di Guo-Lai",
        ["nrkill"] = 1,
    },
    ["qua"] = {
        ["name"] = "qua",
        ["date"] = "09.02.2013 10:57:16",
        ["desc"] = "generic ganker",
        ["lastloc"] = "Valle dei Quattro Venti/Mezzocolle",
        ["nrkill"] = 1,
    },
       
      --- etc etc 
}

So to use a number reference to the records for the scrollframe I was not able to find a better solution of doing something like this:

function RemGank_DB_Dump()
    RemGankLS = {}
    for name in pairs(RemGankDB) do     
        name = name:lower()
        if RemGankDB[name]["name"] then 
            table.insert(RemGankLS, RemGankDB[name]["name"])
        end
    end
    -- Sort the list alphabetically
    table.sort(RemGankLS)   
end

And everything works but the slider have the problem I show.

Someone have an idea on why it happens or if the problem is the dumping how to call this code :

function RemGank_ListFrame_Update(self)
    local numItems = #RemGankLS
    FauxScrollFrame_Update(self, numItems, NUM_BUTTONS, BUTTON_HEIGHT)
    local offset = FauxScrollFrame_GetOffset(self)
    for line = 1, NUM_BUTTONS do
        local lineplusoffset = line + offset
        local button = buttons[line]
        if lineplusoffset <= numItems then
            button:SetText(RemGankLS[lineplusoffset])
            button:Show()
        else
            button:Hide()
        end
    end
end
 
-- [...]
 
for i = 1, NUM_BUTTONS do
    local button = CreateFrame("Button", nil, scrollFrame:GetParent(), "UIPanelButtonTemplate") 
    if i == 1 then
        button:SetPoint("TOP", scrollFrame)
    else
        button:SetPoint("TOP", buttons[i - 1], "BOTTOM")
    end
    button:SetNormalFontObject("GameFontNormal")
    button:SetSize(BUTTON_WIDTH, BUTTON_HEIGHT)
    button:SetText(RemGankLS[i])
    button:SetScript("OnClick", function(self) 
        RemGank_Input_eb2:SetText(button:GetText())
        info_name:SetText(button:GetText())
        info_desc:SetText(RemGankDB[button:GetText()]["desc"])
        info_loc_title:SetText("Last Kill:")
        info_date:SetText(RemGankDB[button:GetText()]["date"])
        info_loc:SetText(RemGankDB[button:GetText()]["lastloc"])
        info_kills_title:SetText("Tot.Kills:")
        info_kills:SetText(RemGankDB[button:GetText()]["nrkill"])
    end)
    buttons[i] = button
end

without the need of dumping the first table RemGankDB (referenced by name) to RemGankLS (indexed by numbers) ?

Thanks for patience and sorry again about all these questions.

[zork]

Next to Slider, Button, ScrollFrame templates there are "Frame" template.

You are probably looking for sth like a DialogBoxTemplate.

Check:
http://www.wowinterface.com/forums/s...54&postcount=1

You will find a pretty deep list of Frame templates. Try them out. I would start with "UIPanelDialogTemplate". You can actually combine templates.

Thus you can do this:

local sf = CreateFrame("ScrollFrame", "MYSCROLLFRAMENAME", UIParent, "UIPanelScrollFrameTemplate, UIPanelDialogTemplate")

That works for all templates that do not counterfit each other. One template my do artwork, the other may do functional stuff etc.

[Kharthus]

I'm having a similar issue where the first action after the scroll frame is shown isn't updating the offset correctly. I'll show the frame, scroll, the slider will move, but the offset will stay at zero. If I hide the frame and re-show it, the offset updates correctly.

Example:

Offset at zero (slider is at the top)
scroll down
Offset at zero
scroll down
Offset at 15
scroll up
Offset at 30
scroll up
Offset at 15 (slider is at the top)
scroll down
Offset at zero

In the middle of my list you can do this:
scroll down
Offset at 75
scroll up
Offset at 90
scroll down
Offset at 75
scroll up
Offset at 90

I copied the code from another addon I wrote and it works correctly there, but in the new addon I'm getting this very very weird behavior.

It appears the slider is following the mouse movement, but the offset is one cycle behind. Any ideas how this is happening?

[Kharthus]

Well I found a solution, but I still don't understand why it's doing this. Ended up doubling up the function calls in the OnVerticalScroll handler.

<ScrollFrame name="LivestockCritterMenuScrollFrameTemplate" inherits="FauxScrollFrameTemplate" virtual="true">
        <Anchors>
            <Anchor point="TOPLEFT">
                <Offset>
                    <AbsDimension x="0" y="-8"/>
                </Offset>
            </Anchor>
            <Anchor point="BOTTOMRIGHT">
                <Offset>
                    <AbsDimension x="-30" y="8"/>
                </Offset>
            </Anchor>
        </Anchors>
        <Scripts>
            <OnVerticalScroll>
                FauxScrollFrame_OnVerticalScroll(self, offset, 15, Livestock.BuildMenu("CRITTER"));
                FauxScrollFrame_OnVerticalScroll(self, offset, 15, Livestock.BuildMenu("CRITTER"));
            </OnVerticalScroll>
        </Scripts>
    </ScrollFrame>

function Livestock.BuildMenu(kind) -- type is a string, either "CRITTER", "LAND", "FLYING", or "WATER"
    kind = string.upper(kind)
    local token = buildtable[kind].token -- buildtable contains references and variables that are specific to each type of menu, indexed by the same string as the variable type
    local settings, mounts, critters = LivestockSettings.Mounts
    
    Livestock.RecycleTable(mountstable)
    Livestock.RecycleTable(critterstable)
    
    if kind == "CRITTER" then
        critters = 0 -- reset critters to 0 so we can start counting critters
        settings = LivestockSettings.Critters
        for k in orderedPairs(settings) do -- Check the list of critters, increment critters, and add the index of the critters to critterstable
            critters = critters + 1
            tinsert(critterstable, settings[k].index)
        end
        
    elseif kind == "LAND" then
        mounts = 0 -- reset mounts to 0 so we can start counting land mounts
        for k in orderedPairs(settings) do -- Check the list of mounts, increment mounts, and add the index of the mounts to mountstable
            if (settings[k].type == "land") then
                mounts = mounts + 1
                tinsert(mountstable, settings[k].index)
            end
        end
 
    elseif kind == "FLYING" then -- code is the same for flying mounts with the appropriate changes; perhaps this could be a function call?
        mounts = 0
        for k in orderedPairs(settings) do
            if (settings[k].type == "flying") then
                mounts = mounts + 1
                tinsert(mountstable, settings[k].index)
            end
        end
        
    elseif kind == "WATER" then -- code is the same for water mounts with the appropriate changes; perhaps this could be a function call?
        mounts = 0
        for k in orderedPairs(settings) do
            if (settings[k].type == "water") then
                mounts = mounts + 1
                tinsert(mountstable, settings[k].index)
            end
        end
    end
    
    local menuframe = _G["Livestock"..token.."Menu"] or CreateFrame("Frame","Livestock"..token.."Menu", LivestockMenuFrame, "LivestockBlueFrameTemplate") -- make the background of the menu (or reference it if it already exists), naming it with the proper token and number
    local scrollframe = _G["Livestock"..token.."MenuScrollFrame"] or CreateFrame("ScrollFrame", "Livestock"..token.."MenuScrollFrame", menuframe, "Livestock"..token.."MenuScrollFrameTemplate")
    scrollframe:Show()
 
    local header
    if kind == "CRITTER" then
        header = "LivestockCritterMenuButton"
    elseif kind == "LAND" then
        header = "LivestockLandMountMenuButton"
    elseif kind == "FLYING" then
        header = "LivestockFlyingMountMenuButton"
    elseif kind == "WATER" then
        header = "LivestockWaterMountMenuButton"
    end
    menuframe:SetPoint("TOPLEFT", header ,"BOTTOMLEFT",0,-10) -- set the first menu to appear below the associated button
 
    if (mounts or critters) <= menuLength then
        menuframe:SetHeight((((mounts or critters) + 2) * buttonHeight) + 21)
    else
        menuframe:SetHeight((menuLength + 2) * buttonHeight + 21)
    end
 
    local endButton -- this is the number of buttons in the menu...
    if (mounts or critters) <= menuLength then
        endButton = (mounts or critters)
    else
        endButton = menuLength
    end
 
    local buttonplusoffset; -- an index into our data calculated from the scroll offset
    FauxScrollFrame_Update(scrollframe,(mounts or critters),endButton,15);
    DEFAULT_CHAT_FRAME:AddMessage("We're at "..FauxScrollFrame_GetOffset(scrollframe));
 
    for button = 1, endButton do -- iterate over the buttons we need
        local menubutton = _G["Livestock"..token.."Menu".."Button"..button] or CreateFrame("Button", "Livestock"..token.."Menu".."Button"..button, menuframe, "LivestockMenuButtonTemplate") -- create or reference the button, with the appropriate name and number
        menubutton:Show()
        local text = _G["Livestock"..token.."Menu".."Button"..button.."Text"] -- reference the text of the button
 
        buttonplusoffset = button + FauxScrollFrame_GetOffset(scrollframe);
 
        if buttonplusoffset <= (mounts or critters) then
            local name, creatureID, _
            if kind == "CRITTER" then
                _, _, _, _, _, _, _, name, _, _, creatureID = C_PetJournal.GetPetInfoByIndex(critterstable[buttonplusoffset])
            elseif kind == "LAND" or kind == "FLYING" or kind == "WATER" then
                creatureID, name = GetCompanionInfo("MOUNT", mountstable[buttonplusoffset])
            end -- get the ID and name of the companion for the button by mapping the position of the button in the menus(s) to the index of the companion
 
            if name and creatureID then
                menubutton.critterID = creatureID 
                menubutton.which = "toggle"..kind
                menubutton.name = name  -- associate the info for the companion with the frame itself to be used for mousing over / clicking
 
                if text then
                    if text.SetText ~= nil then
                        text:SetText(name)
                    end
                end
            end
 
            if name and kind == "LAND" then
                local name2 = strconcat(name, "-")
                if settings[name2] then
                    name = name2
                end
            end
 
            if name and text and settings[name].show == 1 then -- if the name isn't nil (Blizzard bug sometimes returns nil for companion names >:o) and the settings say this companion is selected then
                if text.SetTextColor ~= nil then
                    text:SetTextColor(1, 1, 1) -- set the color of the text to be white
                end
            elseif name and text then
                if text.SetTextColor ~= nil then
                    text:SetTextColor(0.4, 0.4, 0.4) -- otherwise set the color to be grey
                end
            elseif not name and debug then -- debug message if the name is nil
                local which, index
                local creatureID, creatureName, spellID
                local numPets, numOwned = C_PetJournal.GetNumPets(true)
                if mounts then 
                    which = "MOUNT"
                    index = mountstable[buttonplusoffset]
                    creatureID, creatureName, spellID = GetCompanionInfo(which, index)
                    DEFAULT_CHAT_FRAME:AddMessage("Max "..kind.." "..which.." is " .. (mounts or "nil"))
                else
                    which = "CRITTER"
                    index = critterstable[buttonplusoffset]
                    spellID, _, _, _, _, _, _, creatureName, _, _, creatureID = C_PetJournal.GetPetInfoByIndex(critterstable[buttonplusoffset])
                    DEFAULT_CHAT_FRAME:AddMessage("Max "..which.." is " .. (critters or "nil"))
                end
                DEFAULT_CHAT_FRAME:AddMessage(string.format("Error for "..which.." %u at menu build, ID: %s, name: %s, spellID: %s", index, (creatureID or "nil"), (creatureName or "nil"), (spellID or "nil")))
            end
 
            menubutton:SetHeight(buttonHeight) -- give the button a height
            if button == 1 then -- parent it to the menu's TOPLEFT corner if it's the first button, else underneath the previous button
                menubutton:SetPoint("TOPLEFT", menuframe, "TOPLEFT", 20, -10)
            else
                menubutton:SetPoint("TOPLEFT", _G[menuframe:GetName().."Button"..(button - 1)], "BOTTOMLEFT")
            end
 
            if button == endButton and token then -- set all the buttons to have the same width
                for i = 1, endButton do
                    if _G["Livestock"..token.."Menu".."Button"..i].SetWidth ~= nil then
                        _G["Livestock"..token.."Menu".."Button"..i]:SetWidth(maxWidth)
                    end
                end
            end
        end
        menuframe:SetWidth(maxWidth + 30) -- bump up the size of the menu frame background to compensate and make sure the border and background look nice
        
        local check = _G["Livestock"..token.."MenuCheckButton"] or CreateFrame("Button", "Livestock"..token.."MenuCheckButton", _G["Livestock"..token.."Menu"], "LivestockMenuButtonTemplate")
        check.which = "check"..kind
        local uncheck = _G["Livestock"..token.."MenuUncheckButton"] or CreateFrame("Button", "Livestock"..token.."MenuUncheckButton", _G["Livestock"..token.."Menu"], "LivestockMenuButtonTemplate")
        uncheck.which = "uncheck"..kind
        check:SetHeight(buttonHeight)
        check:SetWidth(maxWidth)
        uncheck:SetHeight(buttonHeight)
        uncheck:SetWidth(maxWidth) -- reference them or make them, show them, set their heights and widths, associate info with the frame, etc.
        _G[check:GetName().."Text"]:SetText(L.LIVESTOCK_MENU_SELECTALL)
        _G[check:GetName().."Text"]:SetTextColor(1, 1, 0)
        _G[uncheck:GetName().."Text"]:SetText(L.LIVESTOCK_MENU_SELECTNONE)
        _G[uncheck:GetName().."Text"]:SetTextColor(1, 1, 0) -- set their text and color (yellow to stand out)
        check:SetPoint("TOPLEFT", _G["Livestock"..token.."MenuButton"..endButton], "BOTTOMLEFT")
        uncheck:SetPoint("TOPLEFT", check, "BOTTOMLEFT") -- stick the Uncheck All button under the Check All button... and we're done!
    end
end

[gmarco]

Thanks very much for you clues.

-- [...]
RemGank_conf_scrollFrame:SetScript("OnVerticalScroll", function(self, offset)
    FauxScrollFrame_OnVerticalScroll(self, offset, BUTTON_HEIGHT, RemGank_ListFrame_Update(self))
    FauxScrollFrame_OnVerticalScroll(self, offset, BUTTON_HEIGHT, RemGank_ListFrame_Update(self))
end)

It works and fixes the wrong offset problem. It is not a beautifull solution, but at least it is a working one :-)

Thanks again.

[Lombra]

To FauxScrollFrame_OnVerticalScroll you should pass your update function, not its return value. (which is nil)

FauxScrollFrame_OnVerticalScroll(self, offset, BUTTON_HEIGHT, RemGank_ListFrame_Update(self))

becomes

FauxScrollFrame_OnVerticalScroll(self, offset, BUTTON_HEIGHT, RemGank_ListFrame_Update)

[Kharthus]

In my case I was actually trying to pass a value to another function, but it looks like FauxScrollFrame doesn't like that. I changed the code to this and it's working correctly again.

<ScrollFrame name="LivestockCritterMenuScrollFrameTemplate" inherits="FauxScrollFrameTemplate" virtual="true">
        <Anchors>
            <Anchor point="TOPLEFT">
                <Offset>
                    <AbsDimension x="0" y="-8"/>
                </Offset>
            </Anchor>
            <Anchor point="BOTTOMRIGHT">
                <Offset>
                    <AbsDimension x="-30" y="8"/>
                </Offset>
            </Anchor>
        </Anchors>
        <Scripts>
            <OnVerticalScroll>
                FauxScrollFrame_OnVerticalScroll(self, offset, 15, Livestock.CritterMenuUpdate)
            </OnVerticalScroll>
        </Scripts>
    </ScrollFrame>

function Livestock.CritterMenuUpdate()
    Livestock.BuildMenu("CRITTER")
end

[gmarco]

To FauxScrollFrame_OnVerticalScroll you should pass your update function, not its return value. (which is nil)

Thanks Lombra. It works like a charm now :-)

[Aanson]

Originally Posted by gmarco Hi all, I prefer if possible to avoid this approach and so I am trying to find some links, addons, code to check how this can be implemented with the plain LUA api interface. I have tried to convert the xml approach to lua code but I didn't succeded.

They there. I wrote a complete Scroll Frame example on another forum of this website that will provide you with all of the code you're after, and an explanation:

Tutorials & Other Helpful Info

I hope you find it as useful as was intended


Aanson