function panel
hfig = figure(...
  'Name','Test interface',... %Nom de la fenetre
  'NumberTitle','off', ...
  'units','normalized',...
  'position',[0.05 0.05 0.9 0.9],... %taille et position de la fenetre
  'Toolbar','none');

axes( ...
    'parent',hfig,...
    'units','normalized',...
    'Position',[0,0.9,0.2,0.1]);

Donnees_tab = uitabpanel(...
   'parent',hfig,...
   'Style','popup',... %style d'onglet
   'Units','normalized',... % normalized == % de longueur total
   'Position',[0,0.0,0.2,0.9],... % position et taille de la tab en %
   'FrameBackgroundColor',[0.4314,0.5882,1],... % couleur de fond de la tab
   'FrameBorderType','etchedin',... %style de bordure de la tab
   'Title',{'Laser','Scanner','Lentille','Conception','résolutions'},... % noms des tabs
   'PanelHeights',[7,7,10,10,10],... % hauteur de la fenetre de chaque popup en caractère
   'HorizontalAlignment','left',...
   'FontWeight','bold',...  %typo des titre
   'TitleBackgroundColor',[0.9255 0.9490 0.9765],... % fond de l'onglet
   'TitleForegroundColor',[0.1294,0.3647,0.8510],... % couleur du text
   'PanelBackgroundColor',[0.7725,0.8431,0.9608],... % couleur du popup
   'SelectedItem',3,... %active la selection d'un item par defaut
   'PanelBorderType','line',...
  'CreateFcn',@CreateDonnees);

htab(2) = uitabpanel(...
  'Parent',hfig,...
  'TabPosition','centertop',...
  'Position',[0.2,0,0.8,1],...
  'Margins',{[0,1,4,0],'pixels'},... %marge autour des 4 cotés 
  'PanelBorderType','line',...
  'SelectedItem',1,...
  'Title',{'Step1','Step2','Step3','Step4'},...
  'CreateFcn',@CreateStep);


if nargout, hh = htab; end

function CreateDonnees(htab,evdt,hpanel,hstatus)
 %**************** LASER *********************  
 laser_fontsize=9;
 laser_fontweight='normal';
 laser_backgroundcolor=[1,1,1];
 laser_panel=uipanel(...
      'Parent',hpanel(1),...
      'Units','normalized',...
      'Position',[0.01,0.01,0.98,0.98]);

      uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String','Longueur d''onde  ',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0,1/24+4/6+4/48,0.6,1/6],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String','Energie  ',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0,1/24+3/6+3/48, 0.6,1/6],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String','Puissance Moyenne  ',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0,1/24+2/6+2/48, 0.6,1/6],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String','M²  ',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0, 1/24+1/6+1/48, 0.6,1/6],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String','Taux de répétition  ',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0, 1/24, 0.6,1/6],...
          'HorizontalAlignment','right');
      
      uicontrol(...
          'parent',laser_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',laser_fontsize,...
          'backgroundcolor',laser_backgroundcolor,...
          'position',[0.6,1/24+4/6+4/48, 5/20,1/6],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',laser_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',laser_fontsize,...
          'backgroundcolor',laser_backgroundcolor,...
          'position',[0.6, 1/24+3/6+3/48, 5/20,1/6],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',laser_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',laser_fontsize,...
          'backgroundcolor',laser_backgroundcolor,...
          'position',[0.6,1/24+2/6+2/48, 5/20,1/6],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',laser_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',laser_fontsize,...
          'backgroundcolor',laser_backgroundcolor,...
          'position',[0.6, 1/24+1/6+1/48, 5/20,1/6],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',laser_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',laser_fontsize,...
          'backgroundcolor',laser_backgroundcolor,...
          'position',[0.6, 1/24, 5/20,1/6],...
          'HorizontalAlignment','right');
      
         uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String',' nm',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0.85,1/24+4/6+4/48,0.15,1/6],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String',' mJ ',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0.85,1/24+3/6+3/48, 0.15,1/6],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String',' W',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0.85,1/24+2/6+2/48,0.15,1/6],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',laser_panel,...
          'style','text',...
          'String',' kHz',...
          'units','normalized',...
          'fontsize',laser_fontsize,...
          'fontweight',laser_fontweight,...
          'Position',[0.85, 1/24,0.15,1/6],...
          'HorizontalAlignment','left');
 %**************** Scanner *********************       
scanner_fontsize=9;
scanner_fontweight='normal';
scanner_backgroundcolor=[1,1,1];

 scanner_panel=uipanel(...
      'Parent',hpanel(2),...
      'Units','normalized',...
      'Position',[0.01,0.01,0.98,0.98]);

      uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String','Scanner  ',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0,1/24+3*0.2135+3/48,0.25,0.2135],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String','longueur  ',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0,1/24+2*0.2135+2/48, 0.6,0.2135],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String','angle  ',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0,1/24+1*0.2135+1/48, 0.6,0.2135],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String','vitesse  ',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0, 1/24, 0.6,0.2135],...
          'HorizontalAlignment','right');
           
      uicontrol(...
          'parent',scanner_panel',...
          'style','popup',...
          'units','normalized',...
          'String','Autre|ScanCube7|ScanCube10',...
          'fontsize',scanner_fontsize,...
          'backgroundcolor',scanner_backgroundcolor,...
          'position',[0.25,1/24+3*0.2135+3.5/48, 0.74,0.2130],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',scanner_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',scanner_fontsize,...
          'backgroundcolor',scanner_backgroundcolor,...
          'position',[0.6,1/24+2*0.2135+2/48, 5/20,0.2135],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',scanner_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',scanner_fontsize,...
          'backgroundcolor',scanner_backgroundcolor,...
          'position',[0.6,1/24+1*0.2135+1/48, 5/20,0.2135],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',scanner_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',scanner_fontsize,...
          'backgroundcolor',scanner_backgroundcolor,...
          'position',[0.6,1/24, 5/20,0.2135],...
          'HorizontalAlignment','right');

         uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String',' mm',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0.85,1/24+2*0.2135+2/48,0.15,0.2135],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String',' deg ',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0.85,1/24+1*0.2135+1/48, 0.15,0.2135],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',scanner_panel,...
          'style','text',...
          'String',' m/s',...
          'units','normalized',...
          'fontsize',scanner_fontsize,...
          'fontweight',scanner_fontweight,...
          'Position',[0.85,1/24,0.15,0.2135],...
          'HorizontalAlignment','left');
      
 %**************** Lentille *********************       
lentille_fontsize=9;
lentille_fontweight='normal';
lentille_backgroundcolor=[1,1,1];
 lentille_panel=uipanel(...
      'Parent',hpanel(3),...
      'Units','normalized',...
      'Position',[0.01,0.01,0.98,0.98]);

      uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String','F-Thêta  ',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0,1/24+5*0.1354+5/48,0.25,0.1354],...
          'HorizontalAlignment','right');
       uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String','Zone Scannée',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0,1/24+4*0.1354+4/48, 1,0.1354],...
          'HorizontalAlignment','center');
       uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String',' mm  X',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0.35,1/24+3*0.1354+3/48, 0.25,0.1354],...
          'HorizontalAlignment','left');
      uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String',' mm',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0.80,1/24+3*0.1354+3/48, 0.2,0.1354],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String','Diamètre Lentille  ',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0, 1/24+1*0.1354+1/48, 0.6,0.1354],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String','Distance Focale  ',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0, 1/24+2*0.1354+2/48, 0.6,0.1354],...
          'HorizontalAlignment','right');
           
      uicontrol(...
          'parent',lentille_panel',...
          'style','popup',...
          'units','normalized',...
          'String','Autre|F160|F490',...
          'fontsize',lentille_fontsize,...
          'backgroundcolor',lentille_backgroundcolor,...
          'position',[0.25,1/24+5*0.1354+5.5/48, 0.74,0.1354],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',lentille_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',lentille_fontsize,...
          'backgroundcolor',lentille_backgroundcolor,...
          'position',[0.1,1/24+3*0.1354+3/48, 0.25,0.1354],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',lentille_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',lentille_fontsize,...
          'backgroundcolor',lentille_backgroundcolor,...
          'position',[0.55,1/24+3*0.1354+3/48, 0.25,0.1354],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',lentille_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',lentille_fontsize,...
          'backgroundcolor',lentille_backgroundcolor,...
          'position',[0.6,1/24+2*0.1354+2/48, 5/20,0.1354],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',lentille_panel',...
          'style','edit',...
          'units','normalized',...
          'String','0',...
          'fontsize',lentille_fontsize,...
          'backgroundcolor',lentille_backgroundcolor,...
          'position',[0.6,1/24+1*0.1354+1/48, 5/20,0.1354],...
          'HorizontalAlignment','right');
      uicontrol(...
          'parent',lentille_panel',...
          'style','radiobutton',...
          'units','normalized',...
          'String','Correction Focale',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'position',[0.3,1/24,0.7,0.1354],...
          'value',1);
      
         uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String',' mm',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0.85,1/24+2*0.1354+2/48,0.15,0.1354],...
          'HorizontalAlignment','left');
       uicontrol(...
          'parent',lentille_panel,...
          'style','text',...
          'String',' mm ',...
          'units','normalized',...
          'fontsize',lentille_fontsize,...
          'fontweight',lentille_fontweight,...
          'Position',[0.85,1/24+1*0.1354+1/48, 0.15,0.1354],...
          'HorizontalAlignment','left');

function CreateStep(htab,evdt,hpanel,hstatus)

  uitabpanel(...
  'Parent',hpanel(1),...
  'TitlePosition','leftbottom',...
  'Position',[0,0,1,1],...
  'Margins',{[0,0,0,0],'pixels'},...
  'Title',{'Résultats','Optimisations'},...
  'PanelBorderType','none',...
  'SelectedItem',1,...
  'CreateFcn',@Step1);
uitabpanel(...
  'Parent',hpanel(2),...
  'TitlePosition','leftbottom',...
  'Position',[0,0,1,1],...
  'Margins',{[0,0,0,0],'pixels'},...
  'Title',{'task1','task2'},...
  'PanelBorderType','none',...
  'SelectedItem',1,...
  'CreateFcn',@Step2);
uitabpanel(...
  'Parent',hpanel(3),...
  'TitlePosition','leftbottom',...
  'Position',[0,0,1,1],...
  'Margins',{[0,0,0,0],'pixels'},...
  'Title',{'Résultats','Perturbations'},...
  'PanelBorderType','none',...
  'SelectedItem',1,...
  'CreateFcn',@Step3);
uitabpanel(...
  'Parent',hpanel(4),...
  'TitlePosition','leftbottom',...
  'Position',[0,0,1,1],...
  'Margins',{[0,0,0,0],'pixels'},...
  'Title',{'Paramétrage','Calculs','Exploitation'},...
  'PanelBorderType','none',...
  'SelectedItem',1,...
  'CreateFcn',@Step4);

function Step1(htab,evdt,hpanel,hstatus)
Step1_backgroundcolor=[0.4314,0.5882,0.8431];
Step1_Titlesize=20;
Step1_Titleweight='bold';
Step1_Titlecolor=[1,0,0];
%*************** résultats **************
%****************************************
Step1_Panel(1)=uipanel(...
      'Parent',hpanel(1),...
      'Units','normalized',...
      'Position',[0.01,0.01,0.98,0.98],...
      'Fontsize',Step1_Titlesize,...
      'fontweight',Step1_Titleweight,...
      'foreground',Step1_Titlecolor,...
      'backgroundcolor',Step1_backgroundcolor,...
      'Title','Résultat');
  
  handles.axe=axes( ...
    'parent',Step1_Panel(1),...
    'units','normalized',...
    'Position',[0.35,0.05,0.6,0.4]);

handles.button=uicontrol(...
    'parent',Step1_Panel(1),...
    'style','pushbutton',...
    'units','normalized',...
    'position',[0.1,0.1,0.05,0.02],...
    'callback',@button);

  
%*************** Optimisations **************
%****************************************
uipanel(...
      'Parent',hpanel(2),...
      'Units','normalized',...
      'Position',[0.01,0.01,0.98,0.98],...
      'Fontsize',Step1_Titlesize,...
      'fontweight',Step1_Titleweight,...
      'foreground',Step1_Titlecolor,...
      'backgroundcolor',Step1_backgroundcolor,...
      'Title','Optimisation');
  
function Step2(htab,evdt,hpanel,hstatus)

function Step3(htab,evdt,hpanel,hstatus)

function Step4(htab,evdt,hpanel,hstatus)

function Resultat_pre(htab,evdt,hpanel,hstatus)

function button(objet, handles)
handles = guidata(objet);

set(handles.button,'backgroundcolor',rand(1,3));

% afficher une courbe aussi
guidata(objet, handles); %updates the handles