demogroup.java

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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("振动") == 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();

    }


}