content: // ===============================================================================
  // Authors: AFRL/RQQD
  // Organization: Air Force Research Laboratory, Aerospace Systems Directorate, Power and Control Division
  // 
  // Copyright (c) 2017 Government of the United State of America, as represented by
  // the Secretary of the Air Force.  No copyright is claimed in the United States under
  // Title 17, U.S. Code.  All Other Rights Reserved.
  // ===============================================================================
  
  /*
   * Created on Mar 4, 2005
   */
  package org.flexdock.demos.view;
  
  import java.awt.BorderLayout;
  import java.awt.Color;
  import java.awt.Dimension;
  import java.awt.EventQueue;
  
  import javax.swing.JFrame;
  import javax.swing.JPanel;
  import javax.swing.JTextField;
  import javax.swing.border.EmptyBorder;
  import javax.swing.border.LineBorder;
  
  import org.flexdock.demos.util.DemoUtility;
  import org.flexdock.demos.util.VSNetStartPage;
  import org.flexdock.docking.DockingConstants;
  import org.flexdock.docking.DockingManager;
  import org.flexdock.util.SwingUtility;
  import org.flexdock.view.View;
  import org.flexdock.view.Viewport;
  
  /**
   * @author Christopher Butler
   */
  public class ViewDemo extends JFrame implements DockingConstants {
  
      public static void main(String[] args) {
          SwingUtility.setPlaf("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
  //		SwingUtility.setPlaf("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
  //		SwingUtility.setPlaf("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
          EventQueue.invokeLater(new Runnable() {
              public void run() {
                  startup();
              }
          });
      }
  
      private static void startup() {
          // turn on floating support
          DockingManager.setFloatingEnabled(true);
  
          JFrame f = new ViewDemo();
          f.setSize(800, 600);
          SwingUtility.centerOnScreen(f);
          DemoUtility.setCloseOperation(f);
          f.setVisible(true);
      }
  
      public ViewDemo() {
          super("Viewport Demo");
          setContentPane(createContentPane());
      }
  
      private JPanel createContentPane() {
          JPanel p = new JPanel(new BorderLayout(0, 0));
          p.setBorder(new EmptyBorder(5, 5, 5, 5));
  
          Viewport viewport = new Viewport();
          p.add(viewport, BorderLayout.CENTER);
  
          View startPage = createStartPage();
          View view1 = createView("solution.explorer", "Solution Explorer");
          View view2 = createView("task.list", "Task List");
          View view3 = createView("class.view", "Class View");
          View view4 = createView("message.log", "Message Log");
  
          viewport.dock(startPage);
          startPage.dock(view1, WEST_REGION, .3f);
          startPage.dock(view2, SOUTH_REGION, .3f);
          startPage.dock(view4, EAST_REGION, .3f);
          view1.dock(view3, SOUTH_REGION, .3f);
  
          return p;
      }
  
      private View createView(String id, String text) {
          View view = new View(id, text);
          view.addAction(CLOSE_ACTION);
          view.addAction(PIN_ACTION);
  
          JPanel p = new JPanel();
          //		p.setBackground(Color.WHITE);
          p.setBorder(new LineBorder(Color.GRAY, 1));
  
          JTextField t = new JTextField(text);
          t.setPreferredSize(new Dimension(100, 20));
          p.add(t);
  
          view.setContentPane(p);
          return view;
      }
  
      private View createStartPage() {
          String id = "startPage";
          View view = new View(id, null, null);
          view.setTerritoryBlocked(CENTER_REGION, true);
          view.setTitlebar(null);
          view.setContentPane(new VSNetStartPage());
          return view;
      }
  
  }