package java2d;import java.awt.*;import java.util.Vector;import javax.swing.JPanel;import javax.swing.JTabbedPane;import javax.swing.border.*;import javax.swing.event.ChangeEvent;import javax.swing.event.ChangeListener;// MouseListener,public class DemoGroup extends JPanel implements ChangeListener {    static int columns = 2;    private static Font font = new Font("serif", Font.PLAIN, 12);    private static EmptyBorder emptyB = new EmptyBorder(5, 5, 5, 5);    private static BevelBorder bevelB = new BevelBorder(BevelBorder.LOWERED);    private String groupName;    public JPanel clonePanels[];    public JTabbedPane tabbedPane;    String[] demos0;    public DemoGroup(String name) {        groupName = name;        setLayout(new BorderLayout());        JPanel p = new JPanel(new GridLayout(0, 2));        p.setBorder(new CompoundBorder(emptyB, bevelB));        Vector vector = new Vector(40);        int index = 0;        for (; index < Java2Demo.demos.length; index++) {            if (name.compareTo(Java2Demo.demos[index][0]) == 0) {                break;            }        }        String[] demos = Java2Demo.demos[index];        demos0 = Java2Demo.demos0[index];        for (int j = 1; j < demos.length; j++) {            vector.add("java2d." + demos[j]);        }        if (vector.size() % 2 == 1) {            p.setLayout(new GridBagLayout());        }        for (int i = 0; i < vector.size(); i++) {            DemoPanel dp = new DemoPanel((String) vector.elementAt(i));            dp.setDemoBorder(p);            if (dp.surface != null) {                // dp.surface.addMouseListener(this);                dp.surface.setMonitor(Java2Demo.performancemonitor != null);            }            if (p.getLayout() instanceof GridBagLayout) {                int x = p.getComponentCount() % 2;                int y = p.getComponentCount() / 2;                int w = i == vector.size() - 1 ? 2 : 1;                Java2Demo.addToGridBag(p, dp, x, y, w, 1, 1, 1);            } else {                p.add(dp);            }        }        add(p);        addtab();    }    /*  public void mouseClicked(MouseEvent e)      {          if (tabbedPane == null) {             // shutDown(getPanel());              JPanel p = new JPanel(new BorderLayout());              p.setBorder(new CompoundBorder(emptyB, bevelB));              tabbedPane = new JTabbedPane();              tabbedPane.setFont(font);              JPanel tmpP = (JPanel) getComponent(0);              tabbedPane.addTab(groupName, tmpP);              clonePanels = new JPanel[tmpP.getComponentCount()];              for (int i = 0; i < clonePanels.length; i++) {                  clonePanels[i] = new JPanel(new BorderLayout());                  DemoPanel dp = (DemoPanel) tmpP.getComponent(i);                  DemoPanel c = new DemoPanel(dp.className);                  c.setDemoBorder(clonePanels[i]);                  if (c.surface != null) {     c.surface.setMonitor(Java2Demo.performancemonitor != null);                      if (Java2Demo.backgroundColor != null) {                          c.surface.setBackground(Java2Demo.backgroundColor);                      }                  }                  clonePanels[i].add(c);     String s = dp.className.substring(dp.className.indexOf('.')+1);                  tabbedPane.addTab(s, clonePanels[i]);              }              p.add(tabbedPane);              remove(tmpP);              add(p);              tabbedPane.addChangeListener(this);              validate();          }         String className = e.getComponent().toString();          className = className.substring(0, className.indexOf('['));          for (int i = 0; i < tabbedPane.getTabCount(); i++) {              String s1 = className.substring(className.indexOf('.')+1);              if (tabbedPane.getTitleAt(i).equals(s1)) {                  tabbedPane.setSelectedIndex(i);                  break;              }          }          validate();      }      public void mousePressed(MouseEvent e) { }      public void mouseReleased(MouseEvent e) { }      public void mouseEntered(MouseEvent e) { }      public void mouseExited(MouseEvent e) { }     */    public void addtab() {        if (tabbedPane == null) {            shutDown(getPanel());            JPanel p = new JPanel(new BorderLayout());            p.setBorder(new CompoundBorder(emptyB, bevelB));            tabbedPane = new JTabbedPane();            tabbedPane.setFont(font);            JPanel tmpP = (JPanel) getComponent(0);            tabbedPane.addTab(groupName, tmpP);            clonePanels = new JPanel[tmpP.getComponentCount()];            for (int i = 0; i < clonePanels.length; i++) {                clonePanels[i] = new JPanel(new BorderLayout());                DemoPanel dp = (DemoPanel) tmpP.getComponent(i);                DemoPanel c = new DemoPanel(dp.className);                c.setDemoBorder(clonePanels[i]);                if (c.surface != null) {                    c.surface.setMonitor(Java2Demo.performancemonitor != null);                    if (Java2Demo.backgroundColor != null) {                        c.surface.setBackground(Java2Demo.backgroundColor);                    }                }                clonePanels[i].add(c);                //String s = dp.className.substring(dp.className.indexOf('.')+1);                //                if (groupName.compareTo("振動") == 0) {                    String s = demos0[i + 1];                    tabbedPane.addTab(s, clonePanels[i]);                }            }            p.add(tabbedPane);            remove(tmpP);            add(p);            tabbedPane.addChangeListener(this);            validate();        }    }    private int index;    public void stateChanged(ChangeEvent e) {        shutDown((JPanel) tabbedPane.getComponentAt(index));        index = tabbedPane.getSelectedIndex();        setup(false);    }    public JPanel getPanel() {        if (tabbedPane != null) {            return (JPanel) tabbedPane.getSelectedComponent();        } else {            return (JPanel) getComponent(0);        }    }    public void setup(boolean issueRepaint) {        JPanel p = getPanel();        // Let PerformanceMonitor know which demos are running        if (Java2Demo.performancemonitor != null) {            Java2Demo.performancemonitor.surf.setPanel(p);            Java2Demo.performancemonitor.surf.setSurfaceState();        }        GlobalControls c = Java2Demo.controls;        for (int i = 0; i < p.getComponentCount(); i++) {            DemoPanel dp = (DemoPanel) p.getComponent(i);            if (dp.surface != null && c != null) {                // dp.surface.verbose();                //dp.surface.setSleepAmount(c.slider.getValue());                //dp.surface.setSleepAmount(30);                //   if (Java2Demo.backgroundColor != null) {                // dp.surface.setBackground(Java2Demo.backgroundColor);                // }            }            dp.start();        }        validate();    }    public void shutDown(JPanel p) {        invalidate();        for (int i = 0; i < p.getComponentCount(); i++) {            ((DemoPanel) p.getComponent(i)).stop();        }        System.gc();    }}