On 1/19/2015 8:58 PM, Eric Gerard wrote:
Dear list members
I think I don’t really understand the way to use a context command with luacode
!
What I attempt to do is to write a function in lua which computes the position
of one or several bottom tabs depending on : line number (1 is the lowest, 2 is
above etc), number of tabs, horizontal position of the tab on the line.
The height of the tab is a Tex value \hauteuronglet
So I compute the x and y value and the width of the tab(s)
After that I want to define a layer with the tab(s) in a table
I can’t have the context.setlayer working properly.
For sure, this code should be cleaned after testing.
Here is the code I wrote
\definelayer[OngletBas][x=0mm, y=0mm, width=\paperwidth, height=\paperheight]
% variables
\newdimen\hauteuronglet
\hauteuronglet=1cm
%variables onglet gauche
\newdimen\vertposonglet
\newdimen\hauteurzoneacouper
%variables onglet bas
\newdimen\largeurzoneongletsbas
\newdimen\ordonneeongletsbas
\newdimen\abscisseongletsbas
\newdimen\largeurongletbas
\startluacode
function test(opt_1, arg_1)
local table = lpeg.split(",",interfaces.tolist(opt_1))
local labels = lpeg.split(",",arg_1)
local NumLigne = table[1]
local NbTotalOnglets = table[2]
local PremierOnglet = table[3]
local decalage = tex.sp("6.5pt")
tex.dimen.ordonneeongletsbas = tex.dimen.paperheight -
tex.dimen.hauteuronglet * NumLigne
tex.dimen.largeurzoneongletsbas = tex.dimen.paperwidth -
tex.dimen.backspace
tex.dimen.largeurongletbas = tex.dimen.largeurzoneongletsbas /
NbTotalOnglets
tex.dimen.abscisseongletsbas = tex.dimen.backspace +
tex.dimen.largeurongletbas * (PremierOnglet - 1)
local x_ongletsbas = tex.dimen.abscisseongletsbas - decalage
local y_ongletsbas = tex.dimen.ordonneeongletsbas
local largeurongletbas = tex.dimen.largeurongletbas
context.setupbackgrounds({"page"},{background = "OngletBas"})
context.setlayer({"OngletBas"},{hoffset = x_ongletsbas, voffset
= y_ongletsbas},
context.setupTABLE({c},{1,2,3,4,5,6},{width = largeurongletbas})
context.bTABLE()
context.bTR()
context.bTD()
context(labels[1])
context.eTD()
context.eTR()
context.eTABLE()
)
end
interfaces.definecommand {
name = "test",
arguments = {
{ "option", "hash" },
{ "content", "string" },
},
macro = test,
}
\stopluacode
I have to add also (I don’t understand why) but I need to add an offset of
-6.5pt to adjust the position of the table.
you need to make a complete example, something that runs without me
having to define extra tex code
btw, don't overload the 'table' table ... you can't access the helpers
in its namespace otherwise,
Hans
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Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
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