unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ComCtrls, ExtCtrls, Gauges, Grids, Math;


type
//=============================================================================
     Noeud=
        class
           private
              Fils    : array[32..255] of Noeud;  //liste de fils
              Lettre  : integer;     //lettre contenue dans ce noeud de l'arbre
              Entier  : boolean;     //flag indiquant si le mot est entier
              Etiquet : integer;     //flag indiquant si le mot est entier
              Found   : string;
              NbFound : integer;
           public
              constructor create;
              destructor destroy ;
        end; { Noeud }

    //arbre d'ordre 26
    Arbre =
        class
           private
              tete : noeud ;
           public
              constructor create ;
              destructor destroy ;override ;
              procedure charger(NomFic : string) ;
              function rajouter_mot(LeMot : string;etiquet:integer;courant:Noeud):Noeud;
              procedure fromStrings(chaines:Tstrings);//chaines are like word,etiquet
              function  Trouve(LeMot: string;courant:Noeud) : Noeud;
              function  toString(en_cours : noeud;trouve:string) : string;
              function  compter_terminaux(en_cours : noeud) : integer ;
              procedure updateNode(courant:Noeud;found:string;nbfound:integer);
        end ;


     PhyloNode=
        class
           private
           public
              Fils : Array [0..1] of PhyloNode;  //liste de fils
              weight : real; //length of the edge leading to the node
              angle  : real; //angle of this edge
              minangle : real; //minimal angle below this node
              maxangle : real; //maximal angle below this node
              size : integer; //font size of the label of the node
              r : integer; //red color of the label of the node
              g : integer; //green color of the label of the node
              b : integer; //blue color of the label of the node
              x : real; //coordinates of the node in a precomputing of the drawing
                        //(before stretching to adapt to the window size)
              y : real;
              refnumber : integer; //number of the line to look for the nb of occurences in Frequency.lines
              name  : string;
              constructor create() ;
              destructor destroy ;
              procedure draw(image:TImage);
              procedure computeDrawing(x:real;y:real);
              function toString():string;
              function sortLeaves(sofar:integer):integer;
        end; { Noeud }

     PhyloTree=
        class
           private
           public
              r:integer; //red color of the edges
              g:integer;
              b:integer;
              xmin:real; //x min among all nodes of the tree (computed during drawing precomputing)
              xmax:real; //...
              ymin:real;
              ymax:real;
              root : PhyloNode;
              angle:real; //general angle to add to the tree (to rotate it)
              constructor create() ;
              destructor destroy ;
              procedure draw(Image:Timage); //drawing of the tree using the precomputed positions
              procedure computeDrawing(); //precomputing of the positions of the node
              function toString():string;
              function sortLeaves(sofar:integer):integer; //computes the angles of all edges of the tree in a bottom up procedure
              //EqualAngle algorithm = sortLeaves + computeDrawing + draw
        end; { Noeud }


//=============================================================================

  TForm1 = class(TForm)
    RichEdit1: TRichEdit;
    OuvrirTexte: TButton;
    OpenDialog1: TOpenDialog;
    Gauge1: TGauge;
    Button1: TButton;
    Edit1: TEdit;
    Label1: TLabel;
    Frequencies: TRichEdit;
    Button2: TButton;
    StringGrid1: TStringGrid;
    ListBox1: TListBox;
    ListBox2: TListBox;
    Nexus: TRichEdit;
    Antidico: TCheckBox;
    AntidicoWords: TRichEdit;
    Label2: TLabel;
    ColorR: TRichEdit;
    ColorG: TRichEdit;
    ColorB: TRichEdit;
    Font: TRichEdit;
    RichEdit3: TRichEdit;
    splitstree: TButton;
    OpenDialog2: TOpenDialog;
    OrderedTaxa: TListBox;
    Label3: TLabel;
    RadioGroup1: TRadioGroup;
    WindowLabel: TLabel;
    WindowSize: TEdit;
    AntiDicoWordsEng: TRichEdit;
    AntidicoENG: TCheckBox;
    Parametre: TLabel;
    ListBox3: TListBox;
    TheFreqs: TRichEdit;
    found: TRichEdit;
    Label093: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    gardes: TLabel;
    Button3: TButton;
    Label6: TLabel;
    Newick: TRichEdit;
    ShowTree: TButton;
    MatDist: TStringGrid;
    Color: TButton;
    OtherFreq: TRichEdit;
    LangEng: TRichEdit;
    LangFra: TRichEdit;
    function closestPoint(image:Timage;node:PhyloNode;rx:integer;ry:integer):PhyloNode;
    function treeFromString(chaine:string):PhyloTree;
    function fromString(chaine:string):PhyloNode;
    function elague(machin:string):string;
    function sansAccent(machin:string):string;
    procedure Langue();
    procedure RemplitFreq(Courant: Noeud);
    procedure onlyMostFreq(Courant: Noeud;sofar:string);
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure OuvrirTexteClick(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure ColorClick(Sender: TObject);
    procedure RadioGroup1Click(Sender: TObject);
    procedure Label5Click(Sender: TObject);
    procedure UPGMA(Sender: TObject);
    procedure TextOutAngle(Canvas: TCanvas; P: TPoint; Angle: integer; const s: string);
    procedure ShowTreeClick(Sender: TObject);
    procedure splitstreeClick(Sender: TObject);
  private
    { Déclarations privées }
  public
    { Déclarations publiques }
  end;

var
  Form1: TForm1;
  dico1,lantidico,lantidicoENG : arbre ;
  forbidden,replace,replaceby:array [1..50] of string;
  tree: PhyloTree;
  nbwords: integer;
  lang: TRichedit;

implementation

uses Unit2;

{$R *.DFM}

function TForm1.closestPoint(image:Timage;node:PhyloNode;rx:integer;ry:integer):PhyloNode;
var
tempNode:phylonode;
a,b:real;
begin
   result:=node;
   a:=(image.width-2*form2.horiz.position)/(tree.xmax-tree.xmin);
   b:=(image.height-2*form2.vertic.position)/(tree.ymax-tree.ymin);

   if node.fils[0]<>nil then
   begin
      result:=closestPoint(image,node.fils[0],rx,ry);
      tempNode:=closestPoint(image,node.fils[1],rx,ry);
      if (
         abs(a*(tempNode.x-tree.xmin)+form2.horiz.position-rx)
         +abs(b*(tempNode.y-tree.ymin)+form2.vertic.position-ry)
          ) <
         (
         abs(a*(result.x-tree.xmin)+form2.horiz.position-rx)
         +abs(b*(result.y-tree.ymin)+form2.vertic.position-ry)
         ) then
      result:=tempNode;
   end
end;


procedure TForm1.TextOutAngle(Canvas: TCanvas; P: TPoint; Angle: integer; const s: string);
{ display the text S with angle (0 to 360°) on the canvas at P }
var LogRec: TLogFont;
OldFont, NewFont: HFont;
w, h, Col: integer;
ACos, ASin : Extended;
begin
with Canvas do begin
PenPos:=P;
if length(s)=0 then exit;
GetObject(Font.Handle, SizeOf(LogRec), @LogRec);
LogRec.lfEscapement := Angle*10;
LogRec.lfOrientation := Angle*10;
LogRec.lfOutPrecision := Out_TT_Only_Precis;
NewFont := CreateFontIndirect(LogRec);
OldFont := SelectObject(Canvas.Handle, NewFont);

SinCos(Angle*pi/180, ASin, ACos);

w:=TextWidth(s);
if Brush.style=bsSolid then begin { going another delphi bug (do not paint
the rectangle of textout with brush on some printer (screen ok) }
h:=TextHeight(s);
col:=Pen.color; Pen.color:=brush.color;
Polygon([P, Point(P.x+round(h*Asin), P.y+round(h*Acos)),
Point(P.x+round(w*Acos+h*Asin), P.y+round(-w*Asin+h*Acos)),
Point(P.x+round(w*Acos), P.y+round(-w*Asin) ), P ]);
Pen.Color:=Col;
end;

Windows.TextOut(Canvas.Handle, P.X, P.Y, pchar(S), length(s));
MoveTo( round(p.x+w*ACos), round(p.y-w*ASin) ); // new pen position at end of text

NewFont := SelectObject(Canvas.Handle, OldFont);
DeleteObject(NewFont);
end;
end;


function TForm1.elague (machin:string):string;
var
caract,chaine:string;
i:integer;
begin
i:=1;
while (i<50) and (forbidden[i]<>'') do
begin
   while pos(forbidden[i],machin)>0 do
   begin
      machin:=copy(machin,0,pos(forbidden[i],machin)-1)
              +' '+copy(machin,pos(forbidden[i],machin)+length(forbidden[i]),length(machin));
   end;
   inc(i);
end;

while pos(' ',machin)>0 do
begin
   machin:=copy(machin,0,pos(' ',machin)-1)
           +copy(machin,pos(' ',machin)+1,length(machin));
end;

result:=machin
end;

function TForm1.sansAccent(machin:string):string;
var
caract,chaine:string;
i:integer;
begin
i:=1;
while (i<50) and (replace[i]<>'') do
begin
   while pos(replace[i],machin)>0 do
   begin
      machin:=copy(machin,0,pos(replace[i],machin)-1)
              +replaceby[i]+copy(machin,pos(replace[i],machin)+length(replace[i]),length(machin));
   end;
   inc(i);
end;
result:=machin
end;

constructor PhyloNode.create();
var c : integer ;
begin
for c:=0 to 1 do
   Fils[c]:=nil;
weight:=0;
angle:=0;
name:='';
size:=10;
r:=0;
g:=0;
b:=0;
x:=50000;
y:=50000;
refnumber:=0;
end ;

constructor PhyloTree.create();
begin
root:=PhyloNode.create;
angle:=0;
r:=200;
g:=210;
b:=255;
xmin:=100000;
ymin:=100000;
xmax:=-1;
ymax:=-1;
end ;


//Recursively computes a PhyloTree from a newick string
function TForm1.treeFromString(chaine:string):PhyloTree;
begin
   result:=PhyloTree.create;
   result.root:=fromString(chaine);
end;

//Recursively computes a tree (PhyloNode) from a newick string
function TForm1.fromString(chaine:string):PhyloNode;
var
temp:string;
continue:boolean;
open,closed,i:integer;
begin
open:=0;
closed:=0;
i:=2;
if chaine[1]<>'(' then
begin
   result:=PhyloNode.create();
   result.name:=chaine;
   for i:=1 to Stringgrid1.ColCount-1 do
   begin
      if Stringgrid1.Cells[0,i]=chaine then
      begin
         result.refnumber:=i;
      end;
   end;
end
else
begin
   i:=2;
   continue:=true;
   while (i<=length(chaine)) and (continue) do
   begin
      if chaine[i]='(' then
         inc(open);
      if chaine[i]=')' then
         inc(closed);
      if chaine[i]=',' then
      begin
         if open=closed then
            continue:=false
         else
            inc(i);
      end
      else
         inc(i);
   end;
   //i is the position of the comma "in the middle"
   result:=PhyloNode.create();
   //showmessage('fromstring '+copy(chaine,2,i-2));
   result.fils[0]:=fromString(copy(chaine,2,i-2));
   chaine:=copy(chaine,i+1,length(chaine));
   //showmessage('fromstring '+copy(chaine,1,length(chaine)-1));
   result.fils[1]:=fromString(copy(chaine,1,length(chaine)-1));
end;
end;

destructor PhyloTree.destroy ;
begin
   root.destroy;
   inherited destroy;
end;

destructor PhyloNode.destroy ;
var c : integer ;
begin
for c:=0 to 200 do if fils[c]<>nil then fils[c].destroy ;
inherited destroy ;
end ;

function PhyloTree.toString:string;
begin
   root.toString;
end;

function PhyloNode.toString:string;
var c : integer ;
begin
if Fils[0]<>nil then
   result:='('+Fils[0].toString+','+Fils[1].toString+')'//+':'+floattostr(angle)
else
   result:=name+':'+floattostr(angle);
end;


//Compute the angles of the edges through depth-first search
function PhyloNode.sortLeaves(sofar:integer):integer;
var c : integer ;
isleaf:boolean;
begin
result:=sofar;
isleaf:=true;
for c:=0 to 1 do
begin
  if Fils[c]<>nil then
  begin
     isleaf:=false;
     result:=Fils[c].sortLeaves(result);
  end;
end;
if isleaf then
begin
   angle:=sofar*2*pi/(form1.richedit1.lines.count+1)+tree.angle;
   minangle:=angle;
   maxangle:=angle;
   weight:=1;
   result:=sofar+1;
end
else
begin
   if fils[0].minangle<fils[1].minangle then
      minangle:=fils[0].minangle
   else
      minangle:=fils[1].minangle;
   if fils[0].maxangle>fils[1].maxangle then
      maxangle:=fils[0].maxangle
   else
      maxangle:=fils[1].maxangle;
   angle:=(minangle+maxangle)/2;
end;
end;

function PhyloTree.sortLeaves(sofar:integer):integer;
begin
result:=root.sortleaves(sofar);
end;


procedure PhyloTree.computeDrawing();
begin
   root.computeDrawing(50000,50000)
end;

{
Precompute through depth-first search the positions of the nodes,
assuming all edges have length 50
It will then be rescaled to be drawn.
Positions of the labels are NOT computed here.
x and y gives the position of the currently treated node.
}
procedure PhyloNode.computeDrawing(x:real;y:real);
var
newx,newy:integer;
begin
   if Fils[0]<>nil then
   begin
      Fils[0].x:=Math.floor(x+50*cos(Fils[0].angle));
      Fils[0].y:=Math.floor(y+50*sin(Fils[0].angle));
      if self=tree.root then
      begin
         Fils[0].x:=x;
         Fils[0].y:=y;
      end;
      if Fils[0].x<tree.xmin then tree.xmin:=Fils[0].x;
      if Fils[0].y<tree.ymin then tree.ymin:=Fils[0].y;
      if Fils[0].x>tree.xmax then tree.xmax:=Fils[0].x;
      if Fils[0].y>tree.ymax then tree.ymax:=Fils[0].y;
      Fils[0].computedrawing(Fils[0].x,Fils[0].y);
   end;
   if Fils[1]<>nil then
   begin
      Fils[1].x:=Math.floor(x+50*cos(Fils[1].angle));
      Fils[1].y:=Math.floor(y+50*sin(Fils[1].angle));
      if Fils[1].x<tree.xmin then tree.xmin:=Fils[1].x;
      if Fils[1].y<tree.ymin then tree.ymin:=Fils[1].y;
      if Fils[1].x>tree.xmax then tree.xmax:=Fils[1].x;
      if Fils[1].y>tree.ymax then tree.ymax:=Fils[1].y;
      Fils[1].computedrawing(Fils[1].x,Fils[1].y);
   end;
end;

procedure PhyloTree.draw(image:TImage);
begin
   image.Canvas.Rectangle(0,0,image.width,image.height);
   root.draw(image);
end;

{
Compute through depth-first search the positions of the nodes,
adapting the scale to fit the image given as input,
using the width and height computed in the precomputing computeDrawing.

This step should be fast as it is executed each time the window is rescaled
or the tree is rotated.
Positions of the labels ARE computed here.
}
procedure PhyloNode.draw(image:TImage);
var
a,b,newx,newy:real;
langle,nombre,importance,max,min,i,level:integer;
begin
   max:=0;
   min:=strtoint(copy(form1.frequencies.lines[1],pos(';',form1.frequencies.lines[1])+1,length(form1.frequencies.lines[1])));
   //Compute the min and max number of occurrences of words treated, to color properly the labels later.
   for i:=1 to form1.Frequencies.lines.count-1 do
   begin
      importance:=strtoint(copy(form1.frequencies.lines[i],pos(';',form1.frequencies.lines[i])+1,length(form1.frequencies.lines[i])));
      if importance>max then
         max := importance;
      if importance<min then
         min := importance;
   end;

   //Horizontal scale ratio in a, vertical scale ratio in b
   a:=(image.width-2*form2.horiz.position)/(tree.xmax-tree.xmin);
   b:=(image.height-2*form2.vertic.position)/(tree.ymax-tree.ymin);
   image.Canvas.Pen.Color:=RGB(tree.r, tree.g, tree.b);
   for i:=0 to 1 do
   begin
      if Fils[i]<>nil then
      begin
         if Fils[i].name<>'' then
         begin
         //Compute the labels: fonts and position
            Image.Canvas.Brush.style := BsClear;
            {
            First retrieve the nb of occurrences of the word (in the Richedit Frequencies,
            at the line stored in the property refnumber of the PhyloNode)
            }
            nombre:=Fils[i].refnumber;
            //showmessage(Fils[i].name+'-'+inttostr(Fils[i].refnumber)+'-'+copy(form1.frequencies.lines[nombre],pos(';',form1.frequencies.lines[nombre])+1,length(form1.frequencies.lines[nombre])));
            importance:=strtoint(copy(form1.frequencies.lines[nombre],pos(';',form1.frequencies.lines[nombre])+1,length(form1.frequencies.lines[nombre])));
            level:=Math.floor(1+9.99999*((math.log2(importance)-math.log2(min))/(math.log2(max)-math.log2(min))));

            //Use Label1 and its autosize property to know the width and height of the label.
            form2.Label1.Caption:=Fils[i].name;
            form2.label1.font.color:=RGB(strtoint(form1.colorR.lines[level]),strtoint(form1.colorG.lines[level]),strtoint(form1.colorB.lines[level]));
            form2.label1.font.size:=8+level;

            //Compute the position of the upper left corner of the label
            newx:=(Fils[i].x-tree.xmin)*a+(form2.label1.width+4)/2*cos(angle)-form2.label1.Width/2+form2.horiz.position;
            newy:=(Fils[i].y-tree.ymin)*b+(form2.label1.Height+4)/2*sin(angle)-form2.label1.Height/2+form2.vertic.position;
            Image.Canvas.Font:=form2.label1.font;

            if Form2.RadioButton2.Checked then
            //Display the label horizontally
               Image.canvas.TextOut(Math.Floor(newx),Math.Floor(newy),Fils[i].name)
            else
            begin
            //Display the label with the same angle as the edge
               langle:=180-Math.floor(Fils[i].angle/pi*180);
               if ((langle>=90) and (langle<=180)) or ((langle>=-180) and (langle<=-90)) then
                  langle:=langle+180; //to avoid the labels being upside down
               Form1.TextOutAngle(Image.canvas, Point(Math.floor(a*(Fils[i].x-tree.xmin))+form2.horiz.position,Math.floor(b*(Fils[i].y-tree.ymin)+form2.vertic.position)),langle,Fils[i].name);
            end;
            Image.Canvas.Brush.style := BsSolid;
         end;

         //draw the edge to the currently treated son:
         image.Canvas.MoveTo(Math.floor((x-tree.xmin)*a)+form2.horiz.position,Math.floor((y-tree.ymin)*b)+form2.vertic.position);
         image.Canvas.LineTo(Math.floor(a*(Fils[i].x-tree.xmin))+form2.horiz.position,Math.floor(b*(Fils[i].y-tree.ymin)+form2.vertic.position));

         //recursively apply the drawing to the son:
         Fils[i].draw(image);
      end;
   end;
end;

constructor noeud.create ;
var c : integer ;
begin
for c:=32 to 255 do
    fils[c]:=nil ;
lettre:=0;
etiquet:=0;
entier:=false;
found:='';
nbfound:=0;
end ;

destructor noeud.destroy ;
var c : integer ;
begin
for c:=32 to 255 do if fils[c]<>nil then fils[c].destroy ;
inherited destroy ;
end ;

constructor arbre.create ;
var i : integer ;
    c : integer ;
begin
tete:=noeud.create;
end ;

destructor arbre.destroy ;
begin
tete.destroy ;
inherited destroy ;
end ;


procedure arbre.updateNode(courant:Noeud;found:string;nbfound:integer);
begin
   showmessage(courant.found+'-'+inttostr(courant.nbfound));
   courant.found:=found;
   courant.nbfound:=nbfound;
end;

function arbre.rajouter_mot(LeMot : string;etiquet:integer;courant:Noeud):Noeud;
var lettre : integer ;
begin
if LeMot='' then
begin
   courant.entier:=true;
   courant.etiquet:=etiquet;
   courant.nbfound:=0;
   result:=courant;
   exit ;
end;

lettre:=Ord(LeMot[1]);
if (courant.fils[lettre]=nil) then  //il faut créer cette lettre dans l'arbre
begin
   courant.fils[lettre]:=noeud.create ;
   courant.lettre:=lettre ;  // la lettre est maintenant dans l'arbre
end ;
delete(LeMot,1,1) ;  // on efface la lettre du mot puisqu'elle est déjà dans l'arbre
result:=rajouter_mot(LeMot,etiquet,courant.fils[lettre]) ; // et on rajoute le reste
end ;

procedure arbre.charger(NomFic : string) ;
var   s,chemin : string ;
       f : textfile ;
begin
// chargement du dico
chemin:=ExtractFilePath(Application.ExeName); {le chemin de l'appli, AVEC l'antislash final}
assignFile(f,chemin+nomFic) ;
reset(f) ;
repeat
    readln(f,s) ;
    rajouter_mot(s,0,tete) ;  // et on rajoute le mot
until eof(f) ;
closeFile(f) ;
end ;


function arbre.trouve(LeMot : string;courant:Noeud) : noeud ;
var lettre : integer ;
begin
trouve:=nil;
if LeMot='' then  //--- incomplet ; tester aussi "entier"
   if courant.Entier then
       trouve:=courant
   else
       trouve:=nil
else
   begin
   lettre:=Ord(LeMot[1]);
   delete(LeMot,1,1) ;

   if (lettre>31) and (lettre<256) then
   if (courant.fils[lettre]=nil) then
      trouve:=nil
   else
      begin
      trouve:=trouve(LeMot,courant.fils[lettre]) ;
      end ;
   end ;
end ;

function arbre.compter_terminaux(en_cours : noeud) : integer ;
var i     : integer ;
    total : integer ;
begin  // fonction valable aussi pour un arbre non équilibré
total:=0 ;
for i:=32 to 255 do
begin
    if en_cours.fils[i]<>nil then
       inc(total,compter_terminaux(en_cours.fils[i])) ;
end;
if total=0 then inc(total) ;
compter_terminaux:=total ;
end ;

{
function arbre.toString(en_cours : noeud) : string ;
var
i:integer;
chaine:string;
c1,c2,c3:string;
begin
chaine:='';
if en_cours.Entier then c1:='1' else c1:='0';
chaine:=chaine+('['+Chr(en_cours.Lettre)+','+c1+','+inttostr(en_cours.Etiquet)+'](');
for i:=32 to 255 do
begin
    if en_cours.fils[i]<>nil then
    begin
       chaine:=chaine+toString(en_cours.fils[i]);
    end;
end;
chaine:=chaine+')';
result:=chaine;
end ;
}


procedure arbre.fromStrings(chaines:Tstrings);//chaines are like word,etiquet
var
i:integer;
chaine:string;
c1,c2,c3:string;
begin

for i:=0 to chaines.Count-1 do
begin
   rajouter_mot(copy(chaines.Strings[i],0,pos(',',chaines.Strings[i])-1),
   strtoint(copy(chaines.Strings[i],pos(',',chaines.Strings[i])+1,length(chaines.Strings[i]))),tete)
end;
end;


function arbre.toString(en_cours : noeud;trouve:string) : string ;
var
i:integer;
chaine:string;
c1,c2,c3:string;
begin

if en_cours.Entier then
begin
   chaine:=trouve+','+inttostr(en_cours.etiquet)+',';
end;

for i:=32 to 255 do
begin
    if en_cours.fils[i]<>nil then
    begin
       //showmessage(inttostr(en_cours.etiquet)+' '+trouve+'='+trouve+chr(i));
       chaine:=chaine+toString(en_cours.fils[i],trouve+chr(i));
    end;
end;
result:=chaine;
end ;


//=============================================================================
procedure TForm1.Remplitfreq(Courant: Noeud);
var
i,nombre:integer;
begin
if Courant.Entier then
begin
   nombre:=courant.nbfound;
   thefreqs.Lines[nombre]:=inttostr(strtoint(thefreqs.lines[nombre])+1);
end;

for i:=32 to 255 do
begin
    if courant.fils[i]<>nil then
    begin
       Remplitfreq(courant.fils[i]);
    end;
end;
end;


procedure TForm1.OnlyMostFreq(Courant: Noeud;sofar:string);
var
j,i,nombre:integer;
begin
if Courant.Entier then
begin
   nombre:=courant.nbfound;
   if (nombre>=strtoint(edit1.text)) then
   begin
      if not(((antidico.Checked) and ((sofar='') or (lantidico.Trouve(sofar,lantidico.tete)<>nil))) or
      ((antidicoENG.Checked) and ((sofar='') or (lantidicoENG.Trouve(sofar,lantidicoENG.tete)<>nil)))) then
      begin
         j:=0;
         Frequencies.lines.add(sofar+';'+inttostr(nombre));
 //LOAD OTHER FREQUENCIES :
         {
         while (j<otherfreq.lines.count) and (lowercase((copy(otherfreq.lines[j],0,pos(';',otherfreq.lines[j])-1)))<>sofar) do
         begin
            inc(j);
         end;
         try
         Frequencies.lines.add(sofar+';'+inttostr(Math.floor(strtofloat(copy(otherfreq.lines[j],pos(';',otherfreq.lines[j])+1,length(otherfreq.lines[j]))))));
         except
         frequencies.lines.add(sofar+';10');
         end;
         }
         found.lines.add(courant.Found);
         richedit1.lines.add(sofar+','+inttostr(found.lines.count-1));
      end;
   end;
end;

for i:=32 to 255 do
begin
    if courant.fils[i]<>nil then
    begin
       OnlyMostFreq(courant.fils[i],sofar+char(i));
    end;
end;
end;

procedure TForm1.Langue();
begin
Form1.ouvrirTexte.caption:=lang.lines[0];
Form1.Label1.caption:=lang.lines[1];
Form1.Label093.caption:=lang.lines[2];
Form1.Antidico.caption:=lang.lines[3];
Form1.AntidicoENG.caption:=lang.lines[4];
Form1.Button1.caption:=lang.lines[5];
Form1.gardes.caption:=lang.lines[6];
Form1.Radiogroup1.caption:=lang.lines[7];
Form1.RadioGroup1.items[0]:=lang.lines[8];
Form1.RadioGroup1.items[1]:=lang.lines[9];
Form1.RadioGroup1.items[2]:=lang.lines[10];
Form1.RadioGroup1.items[3]:=lang.lines[11];
Form1.WindowLabel.caption:=lang.lines[12];
Form1.Button2.caption:=lang.lines[13];
Form1.Richedit3.clear;
Form1.Richedit3.lines.add(lang.lines[14]);
Form1.splitstree.caption:=lang.lines[15];
Form1.Color.caption:=lang.lines[16];
Form1.Button3.caption:=lang.lines[17];
Form1.ShowTree.caption:=lang.lines[18];
Form1.Label3.caption:=lang.lines[19];
Form1.Label6.caption:=lang.lines[20];
Form1.Label2.caption:=lang.lines[21];
Form1.Label4.caption:=lang.lines[22];
Form1.Label5.caption:=lang.lines[23];
Form1.parametre.caption:=lang.lines[36];
end;


procedure TForm1.FormCreate(Sender: TObject);
var i:integer;
begin
lang:=LangEng;
langue();
if fileexists(extractfilepath(application.exename)+'AntidicoFRA.txt') then
begin
   antidicoWords.lines.loadfromfile(extractfilepath(application.exename)+'\AntidicoFRA.txt');
end;
if fileexists(extractfilepath(application.exename)+'AntidicoENG.txt') then
begin
   AntiDicoWordsEng.lines.loadfromfile(extractfilepath(application.exename)+'\AntidicoENG.txt');
end;
dico1:=arbre.create ;
forbidden[1]:=',';
forbidden[2]:=';';
forbidden[3]:='.';
forbidden[4]:='(';
forbidden[5]:=')';
forbidden[6]:=':';
forbidden[7]:='?';
forbidden[8]:='!';
forbidden[9]:='/';
forbidden[10]:='_';
//forbidden[11]:='-';
forbidden[11]:='_';
forbidden[12]:='''';
forbidden[13]:='`';
forbidden[14]:='’';
forbidden[15]:='…';
forbidden[16]:='»';
forbidden[17]:='«';
forbidden[18]:='"';
forbidden[19]:='[';
forbidden[20]:=']';
forbidden[21]:='{';
forbidden[22]:='}';
forbidden[23]:=char(9);
for i:=24 to 50 do
begin
   forbidden[i]:='';
end;

replace[1]:='é';
replaceby[1]:='e';
replace[2]:='è';
replaceby[2]:='e';
replace[3]:='ê';
replaceby[3]:='e';
replace[4]:='ë';
replaceby[4]:='e';
replace[5]:='ç';
replaceby[5]:='c';
replace[6]:='à';
replaceby[6]:='a';
replace[7]:='â';
replaceby[7]:='a';
replace[8]:='ù';
replaceby[8]:='u';
replace[9]:='ô';
replaceby[9]:='o';
replace[10]:='û';
replaceby[10]:='u';
replace[11]:='œ';
replaceby[11]:='oe';
replace[12]:='Œ';
replaceby[12]:='oe';
replace[13]:='Ê';
replaceby[13]:='e';
replace[14]:='Ë';
replaceby[14]:='e';
replace[15]:='Ç';
replaceby[15]:='c';
replace[16]:='À';
replaceby[16]:='a';
replace[17]:='Â';
replaceby[17]:='a';
replace[18]:='Ù';
replaceby[18]:='u';
replace[19]:='Ô';
replaceby[19]:='o';
replace[20]:='Û';
replaceby[20]:='u';
replace[21]:='É';
replaceby[21]:='e';
replace[22]:='È';
replaceby[22]:='e';
for i:=23 to 50 do
begin
   replace[i]:='';
   replaceby[i]:='';
end;

lantidico:=arbre.create ;
lantidicoENG:=arbre.create ;
for i:=0 to antidicoWords.Lines.count-1 do
begin
   lantidico.rajouter_mot(lowercase(antidicoWords.lines[i]),0,lantidico.tete);
end;
for i:=0 to antidicoWordsENG.Lines.count-1 do
begin
   lantidicoENG.rajouter_mot(lowercase(antidicoWordsENG.lines[i]),0,lantidicoENG.tete);
end;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
Dico1.Destroy;
end;


procedure TForm1.OuvrirTexteClick(Sender: TObject);
var
maxfreq,size,i,j,isfound,sofar:integer;
temp,chaine:string;
nodefound,lenoeud:noeud;
begin

//otherfreq.lines.LoadFromFile('C:\Sites\PG\Blog\200803TreeCloud\ExperiencesVariees\PNAuthorsCoeff.txt');

if opendialog1.Execute then
begin
OuvrirTexte.Enabled:=false;
richedit1.Lines.loadfromfile(opendialog1.FileName);

size:=0;
nbwords:=0;
maxfreq:=0;
gauge1.MaxValue:=richedit1.Lines.count;
gauge1.MinValue:=0;
for i:=0 to richedit1.lines.count-1 do
begin
   gauge1.MaxValue:=richedit1.Lines.count+2*maxfreq;
   gauge1.progress:=i+1;
   chaine := richedit1.lines[i]+' ';
   while pos(' ',chaine)>0 do
   begin
      inc(nbwords);
      temp:=lowercase(elague(copy(chaine,0,pos(' ',chaine)-1)));
      nodefound:=dico1.trouve(temp,dico1.tete);
      if nodefound=nil then
      begin
         lenoeud:=dico1.rajouter_mot(temp,size,dico1.tete);
         lenoeud.nbfound:=1 ;
         lenoeud.found:=inttostr(nbwords)+',';
         inc(size);
      end
      else
      begin
          nodefound.found:=nodefound.Found+(inttostr(nbwords))+',';
          nodefound.nbfound:=nodefound.nbfound+1;
          if nodefound.nbfound>maxfreq then
             maxfreq:=nodefound.nbfound;
      end;
      chaine := copy(chaine,pos(' ',chaine)+1,length(chaine));
   end;

end;
richedit1.lines.clear;
thefreqs.lines.clear;
thefreqs.lines.add(lang.lines[33]);
for i:=0 to maxfreq do
begin
   thefreqs.lines.add('0');
   gauge1.Progress:=gauge1.progress+1;
end;
RemplitFreq(dico1.tete);
sofar:=0;
for i:=thefreqs.lines.count-1 downto 1 do
begin
   gauge1.Progress:=gauge1.progress+1;
   if (sofar<100) and (sofar+strtoint(thefreqs.Lines[i])>=100) then
      edit1.Text:=inttostr(i);
   sofar:=sofar+strtoint(thefreqs.Lines[i]);
   thefreqs.lines[i]:=inttostr(i)+lang.lines[34]+thefreqs.lines[i]+lang.lines[35]+inttostr(i)+lang.lines[34]+inttostr(sofar);
end;

{
edit1.Text:=inttostr(1+Math.floor(nbwords/Math.LnXP1(size-1)/100));
chaine:=dico1.toString(dico1.tete,'');
while pos(',',chaine)>0 do
begin
   temp:=copy(chaine,0,pos(',',chaine));
   chaine:=copy(chaine,pos(',',chaine)+1,length(chaine));
   temp:=temp+copy(chaine,0,pos(',',chaine)-1);
   chaine:=copy(chaine,pos(',',chaine)+1,length(chaine));
   richedit1.Lines.add(temp);
end;
}

//showmessage(inttostr(length(dico1.toString(dico1.tete))));
//showmessage(inttostr(dico1.compter_terminaux(dico1.tete)))
end;


end;

procedure TForm1.Button1Click(Sender: TObject);
var
mot:string;
ref,i,j,nbvirg:integer;
begin
i:=0;
Frequencies.lines.clear;
Frequencies.lines.add(' ; ');
found.lines.clear;//Contains the locations where most frequent words are found.
richedit1.lines.clear;//word+','+pointer to the corresponding line in "found".
onlyMostFreq(dico1.tete,'');
gauge1.MinValue:=0;
gauge1.MaxValue:=Frequencies.Lines.count;
gardes.Visible:=true;
gardes.caption:=inttostr(frequencies.lines.count-1)+lang.lines[6];
{
while i<richedit1.Lines.count do
begin
   gauge1.progress:=1+i;

   ref:=strtoint(copy(richedit1.Lines[i],
   1+pos(',',richedit1.Lines[i]),
   length(richedit1.Lines[i])));
   mot:=copy(richedit1.Lines[i],0,pos(',',richedit1.Lines[i])-1);
   j:=1;
   //!!nbvirg:=strtoint(nbfound.lines[ref]);
   if nbvirg<strtoint(edit1.Text) then
   begin
      //!!found.lines[ref]:='';
      richedit1.Lines.delete(i);
   end
   else
   begin
      if ((antidico.Checked) and ((mot='') or (lantidico.Trouve(mot,lantidico.tete)<>nil))) or
      ((antidicoENG.Checked) and ((mot='') or (lantidicoENG.Trouve(mot,lantidicoENG.tete)<>nil))) then
      begin
         //!!found.lines[ref]:='';
         richedit1.Lines.delete(i);
      end
      else
      begin
         Frequencies.lines.add(
         copy(richedit1.Lines[i],0,1+pos(',',richedit1.Lines[i])-2)
         +';'+inttostr(nbvirg)
         );
         inc(i);
      end;
   end;
end;
}
end;

procedure TForm1.Button2Click(Sender: TObject);
var
minii,minjj,i,j,ii,jj,ci,cj,ref,mindist,compteur,window,n12,n21,n1,n2:integer;
tempdist,distmax,totdist:real;
chaine,temp,ligne:string;
begin
button3.enabled:=true;
StringGrid1.ColCount:=richedit1.Lines.Count+1;
StringGrid1.RowCount:=richedit1.Lines.Count+1;
gauge1.MinValue:=0;
gauge1.MaxValue:=richedit1.lines.count;
distmax:=-1;

for i:=0 to richedit1.lines.count-1 do
begin
   gauge1.progress:=1+i;
   Stringgrid1.Cells[0,i+1]:=copy(richedit1.lines[i],0,pos(',',richedit1.lines[i])-1);
   Stringgrid1.Cells[i+1,0]:=Stringgrid1.Cells[0,i+1];
   Stringgrid1.Cells[i+1,i+1]:='0';

   ref:=strtoint(copy(richedit1.Lines[i],
   1+pos(',',richedit1.Lines[i]),
   length(richedit1.Lines[i])));
   listbox1.Items.Clear;
   chaine:=found.lines[ref];
   n1:=0;
   ci:=1;
   temp:='';

   while ci<=length(chaine) do
   begin
      if chaine[ci]<>',' then
         temp:=temp+chaine[ci]
      else
      begin
         listbox1.Items.add(temp);
         temp:='';
         inc(n1);
      end;
      inc(ci);
   end;
   listbox3.Items:=listbox1.items;
   for j:=0 to richedit1.Lines.Count-1 do
   begin
      //compute min distance between i and j
      listbox2.clear;
      ref:=strtoint(copy(richedit1.Lines[j],
      1+pos(',',richedit1.Lines[j]),
      length(richedit1.Lines[j])));
      listbox2.Items.Clear;
      chaine:=found.lines[ref];
      n2:=0;

      cj:=1;
      temp:='';
      while cj<=length(chaine) do
      begin
         if chaine[cj]<>',' then
            temp:=temp+chaine[cj]
         else
         begin
            listbox2.Items.add(temp);
            temp:='';
            inc(n2);
         end;
         inc(cj);
      end;
      if (radiogroup1.ItemIndex>=1) then
      begin
      //compute cooccurence distance between word1 and word2
      window:=Math.floor(strtoint(Windowsize.Text)/2);
      ii:=0;
      jj:=0;
      n12:=0;

      while (ii<listbox1.Items.count) and (jj<listbox2.Items.count) do
      begin
         if strtoint(listbox2.items[jj])<window+strtoint(listbox1.items[ii]) then
         begin
            if strtoint(listbox2.items[jj])<strtoint(listbox1.items[ii])-window then
               inc(jj)
            else
            begin
               inc(ii);
               n12:=n12+1;
            end;
         end
         else
         begin
            inc(ii);
         end;
      end;

      ii:=0;
      jj:=0;
      n21:=0;
      while (ii<listbox2.Items.count) and (jj<listbox1.Items.count) do
      begin
         if strtoint(listbox1.items[jj])<window+strtoint(listbox2.items[ii]) then
         begin
            if strtoint(listbox1.items[jj])<strtoint(listbox2.items[ii])-window then
               inc(jj)
            else
            begin
               inc(ii);
               n21:=n21+1;
            end;
         end
         else
         begin
            inc(ii);
         end;
      end;
      //stringgrid1.Cells[i+1,j+1]:=floattostr(1-max(n12/n1,n21/n2));
      //stringgrid1.Cells[i+1,j+1]:=floattostr(Math.Log2(1+Math.Log2(101))-(Math.Log2(1+Math.Log2(1+max(100*n12/n1,100*n21/n2)))));

      if radioGroup1.ItemIndex=1 then
      begin
         if (n1>0) and (n2>0) then
            stringgrid1.Cells[i+1,j+1]:=floattostr(Math.Log2(101)-(Math.Log2(1+max(100*n12/n1,100*n21/n2))))
         else
            stringgrid1.Cells[i+1,j+1]:=floattostr(Math.Log2(101));
      end
      else
      if radioGroup1.ItemIndex=2 then
      begin
         if (n1>0) and (n2>0) then
            stringgrid1.Cells[i+1,j+1]:=floattostr(1-(max(n12/n1,n21/n2)))
         else
            stringgrid1.Cells[i+1,j+1]:=floattostr(1);
      end
      
      else
      if radioGroup1.ItemIndex=3 then
      begin
         if (n12>0) and (n21>0) then
         begin
            tempdist:=(min(Math.Log2(n1/n12),Math.Log2(n2/n21)))/      //max(1/p(y|x),1/p(x|y))
            (max(Math.Log2(nbwords/(n1*window*2)),Math.Log2(nbwords/(n2*window*2))));   // max(1/p(x),1/p(y))
            if tempdist>=distmax then
               distmax:=tempdist;
            stringgrid1.Cells[i+1,j+1]:=floattostr(tempdist);
         end
         else
            stringgrid1.Cells[i+1,j+1]:='inf';
      end;

      stringgrid1.Cells[j+1,i+1]:=stringgrid1.Cells[i+1,j+1];
      end
      else
      begin
      //compute minimum text distance between word1 and word2
      totdist:=0;
      listbox1.Items:=listbox3.items;
      for compteur:=1 to max(1,strtoint(WindowSize.text)) do
      begin
         ii:=0; minii:=0;
         jj:=0; minjj:=0;
         //showmessage(inttostr(listbox1.items.count)+' '+inttostr(listbox2.items.count));
         mindist:=abs(strtoint(listbox1.items[ii])-strtoint(listbox2.items[jj]));
         while (ii<listbox1.Items.count) and (jj<listbox2.Items.count) do
         begin
            if abs(strtoint(listbox1.items[ii])-strtoint(listbox2.items[jj]))<mindist then
            begin
               mindist:=abs(strtoint(listbox1.items[ii])-strtoint(listbox2.items[jj]));
               minii:=ii;
               minjj:=jj;
            end;
            if strtoint(listbox1.items[ii])<strtoint(listbox2.items[jj]) then
               inc(ii)
            else
               inc(jj);
         end;
         listbox1.Items.Delete(minii);
         listbox2.Items.Delete(minjj);
         totdist:=totdist+mindist;
      end;
      stringgrid1.Cells[i+1,j+1]:=floattostr(Math.Log2(totdist+1));
      stringgrid1.Cells[j+1,i+1]:=floattostr(Math.Log2(totdist+1));
      end;
   end;
end;


matdist.colcount:=Stringgrid1.colcount;
matdist.rowcount:=Stringgrid1.rowcount;
for i:=0 to stringgrid1.ColCount-1 do
    for j:=0 to stringgrid1.ColCount-1 do
    begin
       matdist.Cells[i,j]:=stringgrid1.Cells[i,j];
       if Stringgrid1.Cells[i,j]='inf' then
          Stringgrid1.Cells[i,j]:=floattostr(2*distmax);
    end;

{
//UPGMA
nexus.Lines.clear;



}


//Nexus !
nexus.Lines.clear;
nexus.lines.add('#nexus');
nexus.lines.add(' ');
nexus.lines.add('BEGIN Taxa;');
nexus.lines.add('DIMENSIONS ntax='+inttostr(Stringgrid1.ColCount-1)+';');
nexus.lines.add('TAXLABELS');
for i:=1 to Stringgrid1.ColCount-1 do
begin
    ligne:=sansaccent(Stringgrid1.Cells[0,i]);
    while pos('''',ligne)>0 do
       ligne:=copy(ligne,0,pos('''',ligne)-1)+' '+copy(ligne,pos('''',ligne)+1,length(ligne));
       {
    if length(ligne)>13 then
        ligne:=copy(ligne,1,12);
        }
    nexus.lines.add('['+inttostr(i)+'] '''+ligne+'''');
end;
nexus.lines.add('; ');
nexus.lines.add('END; [Taxa]');
nexus.lines.add('BEGIN Distances;');
nexus.lines.add('DIMENSIONS ntax='+inttostr(Stringgrid1.ColCount-1)+';');
nexus.lines.add('FORMAT labels=left diagonal triangle=both;');
nexus.lines.add('MATRIX');

for i:=1 to Stringgrid1.ColCount-1 do
begin
    ligne:=sansaccent(Stringgrid1.Cells[0,i]);
    while pos('''',ligne)>0 do
       ligne:=copy(ligne,0,pos('''',ligne)-1)+' '+copy(ligne,pos('''',ligne)+1,length(ligne));
       {
    if length(ligne)>13 then
        ligne:=copy(ligne,1,12);
        }
    ligne:=''''+ligne+'''';
    while length(ligne)<15 do
        ligne:=ligne+' ';
    ligne:='['+inttostr(i)+'] '+ligne;

    for j:=1 to Stringgrid1.ColCount-1 do
    begin
        chaine := StringGrid1.Cells[i,j];
        while pos(',',chaine)>0 do
           chaine:=copy(chaine,0,pos(',',chaine)-1)+'.'+copy(chaine,pos(',',chaine)+1,length(chaine));
        ligne := ligne+' '+chaine;
    end;
    nexus.lines.add(ligne);
end ;
nexus.lines.add(';');
nexus.lines.add('END; [Distances]');
end;

procedure TForm1.ColorClick(Sender: TObject);
var
minii,minjj,min,max,nombre,i,j,ref,numero,importance,level:integer;
chaine:string;
begin

If opendialog2.execute then
begin
   max:=0;
   min:=strtoint(copy(frequencies.lines[1],pos(';',frequencies.lines[1])+1,length(frequencies.lines[1])));;

   for i:=1 to Frequencies.lines.count-1 do
   begin
      importance:=strtoint(copy(frequencies.lines[i],pos(';',frequencies.lines[i])+1,length(frequencies.lines[i])));
      if importance>max then
         max := importance;
      if importance<min then
         min := importance;
   end;
   
   //showmessage(inttostr(min)+' '+inttostr(max));

   nexus.lines.loadfromfile(opendialog2.FileName);
   i:=0;
   while i<nexus.lines.count do
   begin
      OrderedTaxa.items.add(' ');
      inc(i);
   end;
   i:=0;
   while (i<nexus.Lines.count) and (nexus.lines[i]<>'BEGIN Trees;') do
   begin
      inc(i);
   end;

   while (i<nexus.Lines.count) and (nexus.lines[i]<>'END; [Trees]') do
   begin
      nexus.lines.Delete(i);
   end;
   nexus.lines.Delete(i);

   while (i<nexus.Lines.count) and (nexus.lines[i]<>'TRANSLATE') do
   begin
      inc(i);
   end;
   inc(i);
   //showmessage('found TRANSLATE at line '+inttostr(i));

   while (i<nexus.Lines.count) and (nexus.lines[i]<>';') do
   begin
      nombre:=strtoint(copy(nexus.lines[i],1,pos(' ',nexus.lines[i])-1));
      //showmessage('nombre '+inttostr(nombre)+'<'+inttostr(OrderedTaxa.Lines.Count+1));

      chaine:=copy(nexus.lines[i],pos('''',nexus.lines[i])+1,length(nexus.lines[i]));
      chaine:=copy(chaine,0,pos('''',chaine)-1);

      for j:=1 to Stringgrid1.ColCount-1 do
      begin
         if sansaccent(Stringgrid1.Cells[0,j])=chaine then
         begin
             //showmessage('-'+Stringgrid1.Cells[0,j]+'-'+chaine+'-'+inttostr(j));
             OrderedTaxa.items[nombre]:=inttostr(j);
             //showmessage(OrderedTaxa.items[nombre]);
         end;
      end;
      inc(i);
   end;

   while (i<nexus.Lines.count) and (nexus.lines[i]<>'VERTICES') do
   begin
      inc(i);
   end;
   inc(i);

   while (i<nexus.Lines.count) and (nexus.lines[i]<>';') do
   begin
      numero:=strtoint(copy(nexus.lines[i],1,pos(' ',nexus.lines[i])-1));
      if OrderedTaxa.Items[numero]<>' ' then
      begin
         //Go search the frequency of the taxa
         nombre:=strtoint(OrderedTaxa.items[numero]);
         importance:=strtoint(copy(frequencies.lines[nombre],pos(';',frequencies.lines[nombre])+1,length(frequencies.lines[nombre])));
         level:=Math.floor(1+9.99999*((math.log2(importance)-math.log2(min))/(math.log2(max)-math.log2(min))));
         nexus.lines[i]:=copy(nexus.lines[i],0,pos('s=n',nexus.lines[i])+2)+
         ' c='+colorR.lines[level]+' '+colorG.lines[level]+' '+colorB.lines[level]+
         ' b='+colorR.lines[level]+' '+colorG.lines[level]+' '+colorB.lines[level]+',';
      end;
      inc(i);
   end;

   while (i<nexus.Lines.count) and (nexus.lines[i]<>'VLABELS') do
   begin
      inc(i);
   end;
   inc(i);

   while (i<nexus.Lines.count) and (nexus.lines[i]<>';') do
   begin
      numero:=strtoint(copy(nexus.lines[i],1,pos(' ',nexus.lines[i])-1));
      if OrderedTaxa.Items[numero]<>' ' then
      begin
         //Go search the frequency of the taxa
         nombre:=strtoint(OrderedTaxa.items[numero]);
         importance:=strtoint(copy(frequencies.lines[nombre],pos(';',frequencies.lines[nombre])+1,length(frequencies.lines[nombre])));
         level:=Math.floor(1+9.99999*((math.log2(importance)-math.log2(min))/(math.log2(max)-math.log2(min))));
         nexus.lines[i]:=copy(nexus.lines[i],0,pos('f=''',nexus.lines[i])+1)+
         Font.Lines[level]+',';
      end;
      inc(i);
   end;


end;
nexus.lines.savetofile(opendialog1.filename+'.colored.nexus');
winexec(PChar('C:\Program Files\SplitsTree\Splitstree.exe -i "'+opendialog1.filename+'.colored.nexus'+'"'),1);

end;

procedure TForm1.RadioGroup1Click(Sender: TObject);
begin
if radioGroup1.ItemIndex=0 then
begin
   windowSize.text:=inttostr(min(3,strtoint(edit1.text)));
   windowLabel.visible:=false;
end
else
begin
   windowSize.text:='50';
   windowLabel.Visible:=true;
end;
end;

procedure TForm1.Label5Click(Sender: TObject);
begin
winexec(PChar('explorer "'+lang.lines[32]+'"'),1)
end;

procedure TForm1.UPGMA(Sender: TObject);
var
trees:array of string;
larbre1,larbre2:PhyloNode;
mini,minj,i,j,k:integer;
mind,d:real;
ligne:string;
begin
//StringGrid1.visible:=false;
{
nexus.lines.loadfromfile(APplication.exename+'.txt');

stringgrid1.colcount:=nexus.lines.count;
stringgrid1.rowcount:=nexus.lines.count;
for i:=0 to nexus.lines.count-1 do
begin
   j:=0;
   ligne:=nexus.Lines[i];
   while pos(';',ligne)>0 do
   begin
      stringgrid1.cells[i,j]:=copy(ligne,0,pos(';',ligne)-1);
      ligne:=copy(ligne,pos(';',ligne)+1,length(ligne));
      inc(j);
   end;
end;
}
//showmessage('gridok');

showtree.visible:=true;
Button3.enabled:=false;
//UPGMA algorithm:
{
What is computed here is the tree directly in the newick format (as a string)
It will then be transformed into a PhyloTree object
The parts of the tree computed so far, during the execution of UPGMA
are stored in the array trees.

The algorithm here is in O(n^3) even if we could do better (O(n²))
by storing (and updating) for each line the position of
the minimum distance of the line.
}
setlength(trees,richedit1.Lines.Count);
for k:=0 to richedit1.Lines.Count-1 do
begin
   trees[k]:=Stringgrid1.cells[0,k+1];
end;
for k:=0 to richedit1.Lines.Count-2 do
begin
   //Find minimum distance in the distance table
   mind:=strtofloat(Stringgrid1.Cells[1,2]);
   mini:=0;
   minj:=1;
   //showmessage('Etape'+inttostr(k));
   for i:=0 to richedit1.Lines.Count-1-k do
   begin
      for j:=i+1 to richedit1.Lines.Count-1-k do
      begin
         d:=strtofloat(Stringgrid1.Cells[i+1,j+1]);
         if d<mind then
         begin
            mini:=i;
            minj:=j;
            mind:=d;
         end;
      end;
   end;

   //showmessage('Etape '+inttostr(k)+':'+inttostr(mini)+','+inttostr(minj));

   //Modify the distance table to bring together the closest leaves
   for i:=0 to richedit1.lines.count-1-k do
   begin
      d:=strtofloat(Stringgrid1.Cells[i+1,mini+1])+strtofloat(Stringgrid1.Cells[i+1,minj+1]);
      Stringgrid1.Cells[i+1,mini+1]:=floattostr(d/2);
      Stringgrid1.Cells[mini+1,i+1]:=floattostr(d/2);
   end;

   {
   if column/lines j, which will be deleted, are not the last ones, then
   they have to be exchanged with the last column/line.
   }
   if minj<richedit1.Lines.Count-k then
   begin
      for i:=0 to richedit1.lines.count-1-k do
      begin
         Stringgrid1.Cells[i+1,minj+1]:=Stringgrid1.Cells[i+1,richedit1.Lines.Count-k];
         Stringgrid1.Cells[minj+1,i+1]:=Stringgrid1.Cells[i+1,richedit1.Lines.Count-k];
      end;
   end;
   Stringgrid1.Cells[mini+1,mini+1]:='0';
   if minj<richedit1.Lines.Count-k then
   begin
      Stringgrid1.Cells[minj+1,minj+1]:='0';
   end;
   trees[mini]:='('+trees[mini]+','+trees[minj]+')';
   //showmessage(trees[mini]);
   trees[minj]:=trees[richedit1.Lines.Count-1-k];


   {
   //Save what happens at each step:
   newick.lines.clear;
   for i:=1 to richedit1.Lines.Count-1-k do
   begin
         stringgrid1.Cells[0,i]:=trees[i-1];
         stringgrid1.Cells[i,0]:=trees[i-1];
   end;
   for i:=0 to richedit1.Lines.Count-1-k do
   begin
      newick.lines.add(stringgrid1.cells[i,0]);
      for j:=1 to richedit1.Lines.Count-1-k do
      begin
         newick.lines[i]:=newick.lines[i]+';'+stringgrid1.cells[i,j];
      end;
   end;
   newick.lines.savetofile(Application.exename+inttostr(k)+'.csv');
}

end;
newick.lines.clear;
newick.lines.add(sansaccent(trees[0])+';');

//Compute the PhyloTree from the newick string
tree:=treeFromString(trees[0]);

//Compute the angles on the edges of the tree
tree.sortLeaves(0);

//Precompute the drawing
tree.ComputeDrawing();
//showmessage('width'+inttostr(form2.image1.width)+' height'+inttostr(form2.image1.height)+' xmin'+floa(tree.xmin)+' xmax'+inttostr(tree.xmax)+' ymin'+inttostr(tree.ymin)+' ymax'+inttostr(tree.ymax));

//Compute the drawing using the width and height computed by the precomputing to scale it properly
tree.draw(Form2.Image1);
//nexus.lines.add(tree.toString);

//Dispaly the window with the treecloud:
form2.show;
end;

procedure TForm1.ShowTreeClick(Sender: TObject);
begin
form2.show;
end;

procedure TForm1.splitstreeClick(Sender: TObject);
begin
nexus.lines.add(' ');
nexus.lines.add('BEGIN st_Assumptions;');
nexus.lines.add('	disttransform=NJ;');
nexus.lines.add('	treestransform=TreeSelector;');
nexus.lines.add('	splitstransform=EqualAngle;');
nexus.lines.add('	SplitsPostProcess filter=dimension value=4;');
nexus.lines.add('	autolayoutnodelabels;');
nexus.lines.add('END; [st_Assumptions]');
nexus.lines.savetofile(opendialog1.filename+'.temp.nexus');
winexec(PChar('C:\Program Files\SplitsTree\Splitstree.exe -i "'+opendialog1.filename+'.temp.nexus'+'"'),1);
end;

end.