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import java.awt.BorderLayout;
import java.awt.Dimension;

import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.plaf.nimbus.NimbusLookAndFeel;

public class JTabbedPaneSample extends JFrame {
    
    private static final long serialVersionUID = 8880534690644326693L;

    // --- Construction de l'interface graphique ---
    public JTabbedPaneSample() throws Exception {
        super( "JTabbedPane sample" );
        this.setSize( 800, 500 );
        this.setLocationRelativeTo( null );
        this.setDefaultCloseOperation( DISPOSE_ON_CLOSE );
        
        // --- On crée le conteneur d'onglets (partie gauche) ---
        JTabbedPane tabs = new JTabbedPane();
        tabs.setPreferredSize( new Dimension( 260, 0 ) );
        tabs.setTabPlacement( JTabbedPane.BOTTOM );

        // --- Premier onglet et son composant associé ---
        tabs.addTab( "Explorer", new JScrollPane( new JTree() ) );

        // --- Second onglet et son composant associé ---
        JEditorPane helpPane = new JEditorPane();
        helpPane.setEditable( false );
        helpPane.setPage( "file:docs/index.html" );
        tabs.addTab( "Help", new JScrollPane( helpPane ) );
        
        // --- On crée un éditeur (partie droite) ---
        JTextArea editor = new JTextArea();
        JScrollPane scrollEditor = new JScrollPane( editor );        

        // -- On assemble la partie gauche et la partir droite dans un splitter ---
        JSplitPane splitter = new JSplitPane( JSplitPane.HORIZONTAL_SPLIT, tabs, scrollEditor );
        
        // --- On récupère le contentPane et on y ajoute le splitter ---
        JPanel contentPane = (JPanel) getContentPane();
        contentPane.add( splitter, BorderLayout.CENTER );
    }
    
    // --- Point d'entrée du programme ---
    public static void main(String[] args) throws Exception {
        UIManager.setLookAndFeel( new NimbusLookAndFeel() );
        JTabbedPaneSample frame = new JTabbedPaneSample();
        frame.setVisible(true);
    }
}