//  Scicos
//
//  Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See the file ../license.txt
//

function [x,y,typ]=LOOKUP_f(job,arg1,arg2)
    x=[];
    y=[];
    typ=[];
    select job
    case "set" then
        x=arg1;
        graphics=arg1.graphics;
        exprs=graphics.exprs
        model=arg1.model;
        rpar=model.rpar;
        n=size(rpar,"*")/2
        xx=rpar(1:n);
        yy=rpar(n+1:2*n)
        while %t do
            [ln,fun]=where();

            if ~or(fun == "do_eval") then // cas standard
                [xx,yy,ok,gc] = edit_curv(xx,yy,"axy");
            else
                ok=%t
            end  // no need anymore to overload edit_curv in do_eval

            if ~ok then
                break,
            end
            n=size(xx,"*")
            if or(xx(2:n)-xx(1:n-1)<=0) then
                message("You have not defined a function")
                ok=%f
            end
            if ok then
                model.rpar=[xx(:);yy(:)]
                x.graphics=graphics;
                x.model=model
                break
            end
        end
    case "define" then
        model=scicos_model()
        model.sim="lookup"
        model.in=1
        model.out=1
        model.rpar=[-2;-1;1;2;-1;1;-1;1]
        model.blocktype="c"
        model.dep_ut=[%t %f]

        gr_i=[]
        x=standard_define([2 2],model,[],gr_i)
    end
endfunction