Interface buttons

MartinA · Post by **MartinA** » 07 Sep 2012 08:55

I've been using the Interface buttons snippet and can adapt it a bit to suit so that buttons show either vertically or horizontally. But how do I get a block of buttons e.g. 3 across and 3 down?

Martin

ID:6474

YouTube · Post by **Jane** » 07 Sep 2012 10:41

You'll need to look at the IUP documentation.

http://www.tecgraf.puc-rio.br/iup/

As you'll need to add three v groups each with 3 buttons within an h group.

MartinA · Post by **MartinA** » 07 Sep 2012 10:57

Thanks, Jane. I'll explore that. I'm just trying to make quite a lot of buttons more manageable.

Martin

MartinA · Post by **MartinA** » 08 Sep 2012 09:54

I think I've got the principle of embedding boxes, but I'm working from your Interface Button snippet.

I don't understand where intArgNum comes from. So I can't work out how to split the button arguments into groups. i.e. with six button names sent to iupButtons I want to split them into two (or three) groups in separate vertical boxes. Does that make sense?

Martin

Post by **tatewise** » 08 Sep 2012 12:29

intArgNum is a counter for the button name arguments, running from 1 consecutively upwards.

An alternative to passing in arguments is to provide the button names explicitly in the function and use two horizontal boxes.

Code: Select all

local intArgNum = 0
local iupBox1 = iup.hbox{homogeneous='YES'}
for intNum, strButton in ipairs({'Btn1','Btn2','Btn3'}) do
      intArgNum = intArgNum + 1
      local btnName = iup.button{title=strButton,expand='YES',padding='4',action=function() intButton=intArgNum return iup.CLOSE end}
      iup.Append(iupBox1,btnName)
end
local iupBox2 = iup.hbox{homogeneous='YES'}
for intNum, strButton in ipairs({'Btn4','Btn5','Btn6'}) do
      intArgNum = intArgNum + 1
      local btnName = iup.button{title=strButton,expand='YES',padding='4',action=function() intButton=intArgNum return iup.CLOSE end}
      iup.Append(iupBox2,btnName)
end
-- Create dialogue and turn off resize, maximize, minimize, and menubox except Close button
local dialogue = iup.dialog{title=strTitle,iup.vbox{lblMessage,lblLineSep,iupBox1,iupBox2},dialogframe='YES',background='250 250 250',gap='8',margin='8x8'}

Or you can test the intArgNum value:

Code: Select all

local iupBox1 = iup.hbox{homogeneous='YES'}
local iupBox2 = iup.hbox{homogeneous='YES'}
for intArgNum, strButton in ipairs(arg) do
   local btnName = iup.button{title=strButton,expand='YES',padding='4',action=function() intButton=intArgNum return iup.CLOSE end}
     if intArgNum < 4 then
          iup.Append(iupBox1,btnName)
     else
          iup.Append(iupBox2,btnName)
     end
end
-- Create dialogue and turn off resize, maximize, minimize, and menubox except Close button
local dialogue = iup.dialog{title=strTitle,iup.vbox{lblMessage,lblLineSep,iupBox1,iupBox2},dialogframe='YES',background='250 250 250',gap='8',margin='8x8'}

MartinA · Post by **MartinA** » 08 Sep 2012 12:51

Great, Mike, thanks. Your second version does just what I want.

Is there a variable generated for the actual number of buttons, so that I could use ,say, that variable over 2 rather than specifying the number 4? Not crucial but it would be nice.

Post by **tatewise** » 08 Sep 2012 14:12

Yes, because arg is a table listing the ... arguments, then #arg is the number of button names in the table.
Thus #arg / 2 is half the number of button names.

MartinA · Post by **MartinA** » 08 Sep 2012 15:16

Excellent. Got it. I now understand better what that bit is doing. I found the iup info rather confusing.

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