diff --git a/src/lsystem/Main.java b/src/lsystem/Main.java
index b0b56d1..1618331 100644
--- a/src/lsystem/Main.java
+++ b/src/lsystem/Main.java
@@ -14,9 +14,8 @@ public class Main {
     public static void main(String[] args) {
 
         MainFrame frame = new MainFrame();
-        frame.pack();
         frame.setVisible(true);
-
+        /*
         SwingGLCanvas canvas = new SwingGLCanvas();
 
         final Scanner scanner = new Scanner(System.in);
@@ -42,7 +41,7 @@ public class Main {
         Rewrite rewriter = new Rewrite(axiom, parser.parseRules(), nbIterations);
         final String word = rewriter.rewrite();
         System.out.println(word);
-        scanner.close();
+        scanner.close();*/
         
     }
 
diff --git a/src/lsystem/screen/Tab.java b/src/lsystem/screen/Tab.java
index 1fae1a9..5e9ec16 100644
--- a/src/lsystem/screen/Tab.java
+++ b/src/lsystem/screen/Tab.java
@@ -1,47 +1,91 @@
 package lsystem.screen;
 
-import lsystem.screen.listener.AxiomFieldListener;
+import lsystem.screen.listener.ClearListener;
+import lsystem.screen.listener.FieldListener;
 
 import javax.swing.*;
 import java.awt.*;
 import javax.swing.JTabbedPane;
 
 public class Tab {
+    MainFrame frame;
+    int nbTabs;
+    int nbRules;
 
     public Tab(MainFrame frame,int nbTabs,int nbRules,JTabbedPane tabs) {
+        this.frame = frame;
+        this.nbRules = nbRules;
+        this.nbTabs = nbTabs;
+
         JPanel tab = new JPanel();
 
-        JTextArea axiomList = new JTextArea();
-        axiomList.setText("Axiome : \n");
-        axiomList.setEditable(false);
-        frame.addToTextAreaList(axiomList,nbTabs);
-
-        JTextArea rulesList = new JTextArea();
-        rulesList.setText("Règles : \n");
-        rulesList.setEditable(false);
-        frame.addToTextAreaList(rulesList,nbTabs+10);
-
-        JButton closeButton = new JButton("x");
+        JTextArea axiomList = textArea("Axiome : \n",nbTabs);
+        JTextArea rulesList = textArea("Règles : \n",nbTabs+10);
 
 
-        JLabel axiome = new JLabel("Axiome");
-        JLabel rules = new JLabel("Règle "+ nbRules);
+
+
+        JLabel axiome = new JLabel("Axiome :");
+        JLabel rules = new JLabel("Règle "+ nbRules+" :");
 
         JTextField axiomeField = new JTextField();
-        axiomeField.addKeyListener(new AxiomFieldListener(frame,nbTabs));
-        axiomeField.setPreferredSize(new Dimension(20,20));
+        axiomeField.addKeyListener(new FieldListener(frame,nbTabs,(byte)0));
+        axiomeField.setPreferredSize(new Dimension(120,20));
         frame.addToTextFieldList(axiomeField,nbTabs);
 
         JTextField rulesField = new JTextField();
-        rulesField.setPreferredSize(new Dimension(20,20));
+        rulesField.addKeyListener(new FieldListener(frame,nbTabs+10,(byte)1));
+        rulesField.setPreferredSize(new Dimension(120,20));
+        frame.addToTextFieldList(rulesField,nbTabs+10);
+
+        JButton submitButton = new JButton("Générer");
+        JButton clearButton = new JButton("Clear");
+        clearButton.addActionListener(new ClearListener(frame,nbTabs));
+        JPanel southComponents = subPanel(clearButton,submitButton,null);
+
+        GridBagConstraints gc = new GridBagConstraints();
+        gc.gridx = 0;
+        gc.gridy = 0;
+        gc.weightx = 0;
+        gc.weighty = 0.5;
+
+        JPanel eastComponents = subPanel(axiomList,rulesList,gc);
+        JPanel centerComponents = subPanel(axiomeField,rulesField,gc);
+        JPanel westComponents = subPanel(axiome,rules,gc);
+
+
+        JPanel aboveComponents = new JPanel();
+        aboveComponents.add(westComponents);
+        aboveComponents.add(centerComponents);
+        aboveComponents.add(eastComponents);
+
+        aboveComponents.setLayout(new GridLayout(1,3));
+        tab.add(aboveComponents);
+        tab.add(southComponents);
+        tab.setLayout(new BoxLayout(tab,1));
 
-        tab.add(axiome);
-        tab.add(axiomeField);
-        tab.add(axiomList);
-        tab.add(rules);
-        tab.add(rulesField);
-        tab.add(rulesList);
-        tab.setLayout(new GridLayout(2,3));
         tabs.addTab("Génération"+String.valueOf(nbTabs), tab);
     }
+    public JTextArea textArea(String texte,int nb){
+        JTextArea res = new JTextArea();
+        res.setText(texte);
+        res.setEditable(false);
+        res.setPreferredSize(new Dimension(120,100));
+        frame.addToTextAreaList(res,nb);
+        return res;
+    }
+    public JPanel subPanel(Component a, Component b,GridBagConstraints gc){
+        JPanel res = new JPanel();
+        if(gc == null){
+            res.add(a);
+            res.add(b);
+            return res;
+        }
+        res.setLayout(new GridBagLayout());
+        res.add(a,gc);
+        gc.gridy = 1;
+        res.add(b,gc);
+        gc.gridy = 0;
+        return res;
+    }
 }
diff --git a/src/lsystem/screen/listener/ClearListener.java b/src/lsystem/screen/listener/ClearListener.java
new file mode 100644
index 0000000..e575b5f
--- /dev/null
+++ b/src/lsystem/screen/listener/ClearListener.java
@@ -0,0 +1,24 @@
+package lsystem.screen.listener;
+
+import lsystem.screen.MainFrame;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+public class ClearListener implements ActionListener {
+    MainFrame frame;
+    int nbTabs;
+
+    public ClearListener(MainFrame frame, int nbTabs){
+        this.frame =frame;
+        this.nbTabs = nbTabs;
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        frame.textAreaList.get(nbTabs).setText("Axiome : \n");
+        frame.textAreaList.get(nbTabs+10).setText("Règles : \n");
+        frame.textFieldList.get(nbTabs).setText("");
+        frame.textFieldList.get(nbTabs+10).setText("");
+    }
+}
diff --git a/src/lsystem/screen/listener/FieldListener.java b/src/lsystem/screen/listener/FieldListener.java
new file mode 100644
index 0000000..e5e032d
--- /dev/null
+++ b/src/lsystem/screen/listener/FieldListener.java
@@ -0,0 +1,44 @@
+package lsystem.screen.listener;
+
+import lsystem.screen.MainFrame;
+
+import javax.swing.*;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+import java.lang.reflect.Field;
+
+public class FieldListener implements KeyListener {
+
+    MainFrame frame;
+    int index;
+    byte i;
+
+    public FieldListener(MainFrame frame, int index, byte i){
+        this.frame = frame;
+        this.index = index;
+        this.i = i;
+
+
+    }
+    @Override
+    public void keyTyped(KeyEvent ke) {
+        if(ke.getKeyCode() != KeyEvent.VK_ENTER)
+            frame.changeList(String.valueOf(ke.getKeyChar()),i, (JTextArea) frame.textAreaList.get(index));
+        else{
+            String str = ";\r\n";
+            frame.changeList(str,i, (JTextArea) frame.textAreaList.get(index));
+            frame.textFieldList.get(index).setText(null);
+        }
+    }
+
+    @Override
+    public void keyPressed(KeyEvent ke) {
+        if(ke.getKeyCode() == KeyEvent.VK_ENTER)
+            frame.textFieldList.get(index).setText(null);
+    }
+
+    @Override
+    public void keyReleased(KeyEvent e) {
+
+    }
+}