globalpanel.java

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package java2d;

import java.awt.BorderLayout;
import java.awt.GridBagLayout;

import javax.swing.JPanel;
import javax.swing.border.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;


/**
 * Panel that holds the Demo groups, Controls and Monitors for each tab.
 * It's a special "always visible" panel for the Controls, MemoryMonitor &
 * PerformanceMonitor.
 */
public class GlobalPanel extends JPanel implements ChangeListener {


    private JPanel p;
    private int index;


    public GlobalPanel() {
        setLayout(new BorderLayout());
        // p = new JPanel(new GridBagLayout());
        p = new JPanel(new GridBagLayout());
        EmptyBorder eb = new EmptyBorder(5, 0, 5, 5);
        BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
        p.setBorder(new CompoundBorder(eb, bb));
        Java2Demo.addToGridBag(p, Java2Demo.controls, 0, 0, 1, 1, 0, 0);
        //Java2Demo.addToGridBag(p,Java2Demo.memorymonitor,0,1,1,1,0,0);
        Java2Demo.addToGridBag(p, Java2Demo.performancemonitor, 0, 1, 1, 1, 0,
                               0);
        add(Java2Demo.intro);
    }


    public void stateChanged(ChangeEvent e) {

        // Java2Demo.group[index].shutDown(Java2Demo.group[index].getPanel());
        if (Java2Demo.tabbedPane.getSelectedIndex() == 0) {
            Java2Demo.memorymonitor.surf.stop();
            Java2Demo.performancemonitor.surf.stop();
            Java2Demo.controls.surf.stop();
            removeAll();
            add(Java2Demo.intro);
            Java2Demo.intro.start();
        } else {
            //

            if (getComponentCount() == 1) {
                Java2Demo.intro.stop();
                remove(Java2Demo.intro);
                add(p, BorderLayout.EAST);

                Java2Demo.memorymonitor.surf.start();

                Java2Demo.performancemonitor.surf.start();
                Java2Demo.controls.surf.start();

            } else {
                remove(Java2Demo.group[index]);

            }
            index = Java2Demo.tabbedPane.getSelectedIndex() - 1;
            add(Java2Demo.group[index]);
            Java2Demo.group[index].setup(false);
        }
        validate();
    }
}