import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.plaf.basic.*;

public class TestInternalFrames extends JFrame {

  private Desktop theDesktop;
  private Dimension screenSize;

  public TestInternalFrames() {
    super("VTK Internal Frame Demo");
    screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    this.setSize(900, 900);
      
    WindowListener l = new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
          System.exit(0);
        }
      };
    this.addWindowListener(l);
        
    this.getContentPane().add(new SplitFrame());
      
    new MenuMgr();
    
    this.show();
  }

  public void addMenuBar(JMenuBar m) {
    setJMenuBar(m);
  }

  private class SplitFrame extends JSplitPane {

    public SplitFrame( ) {
      super(JSplitPane.VERTICAL_SPLIT);
      this.setDividerLocation(screenSize.height/2);
      setContinuousLayout(true);
      setOneTouchExpandable(true);
      add(theDesktop = new Desktop());
      add(new Tabbed());
    }
  }

  private class Desktop extends JDesktopPane {

    public Desktop( ) {
      super();
      this.setPreferredSize(screenSize);
      this.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
      this.add(new VTKFrame(10, 10));
      this.add(new VTKFrame(500, 10));
    }
  }
  
  private class Tabbed extends JTabbedPane {
    
    public Tabbed() {
      this.addTab( "vtk1", new TestVTKCanvas() );
      this.addTab( "vtk2", new TestVTKCanvas() );
      
      setMinimumSize(new Dimension(300, 300));
      // another swing bug work around
      // for some reason the first time the tabbed item is drawn,
      // tab 0 is selected but the sphere (tab 1) is drawn
      // manually selecting the tabs synchs the tab and the draw order
      // it is harmless but it is still annoying
      // so we force tab 1 to be selected and hide the bug from the user
      // note that selecting 0 does not work....
      this.setSelectedIndex(1);
    }
  }

  private class VTKFrame extends JInternalFrame {

    public VTKFrame(int x, int y) {
      super("VTK Window", true, true, true, true);
      Dimension mySize = new Dimension();
      mySize.height = 300;
      mySize.width = 300;
      this.setSize(mySize);
      this.getContentPane().setLayout(new BorderLayout());
      this.setLocation(x, y);
      
      this.getContentPane().add(new TestVTKCanvas(), BorderLayout.CENTER); 
      this.pack();
      this.setVisible(true);
    }
  }

  private class MenuMgr extends JMenuBar {

    JMenu menu;
    
    public MenuMgr() {
      super();
      JPopupMenu.setDefaultLightWeightPopupEnabled(false);

      menu = new JMenu("File");  
      menu.add(new CreateWindowAction("Create New VTK Window"));
      menu.add(new KillAction("Exit"));
      add(menu);
      
      addMenuBar(this);
    }
  }

  private class CreateWindowAction extends AbstractAction {

    private int layer = 0;
    public CreateWindowAction  (String label) {
      super(label);
    }
    
    public void actionPerformed(ActionEvent ev) {
      theDesktop.add(new VTKFrame(340, 200), 
                                  new Integer(layer));
    }
  }
  
  private class KillAction extends AbstractAction {
    
    public KillAction(String label) {
      super(label);
    }
    
    public void actionPerformed(ActionEvent ev) {
      System.exit(0);
    }
  }
  

  public static void main(String[] args) {
    JFrame f = new TestInternalFrames();
  }
}