sitemanager.java

java swing 开发代码

// SiteManager.java
// A sample Swing application that manages several internal frames.  This
// is the main class for working with the SiteFrame and PageFrame classes.
//

package	jswing.ch02;

import java.awt.*;
import java.util.*;
import javax.swing.*;

public class SiteManager extends JFrame {

  JLayeredPane desktop;
  Vector popups = new Vector();

  public SiteManager() {
    super("Web Site Manager");
    setSize(450, 250);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    Container contentPane = getContentPane();

    JToolBar jtb = new JToolBar();
    jtb.add(new CutAction(this));
    jtb.add(new CopyAction(this));
    jtb.add(new PasteAction(this));
    contentPane.add(jtb, BorderLayout.NORTH);
    
    // Add our LayeredPane object for the internal frames.
    desktop = new JDesktopPane();
    contentPane.add(desktop, BorderLayout.CENTER);
    addSiteFrame("Sample");
  }

  public static void main(String args[]) {
    SiteManager mgr = new SiteManager();
    mgr.setVisible(true);
  }

  // Methods to create our internal frames
  public void addSiteFrame(String name) {
    SiteFrame sf = new SiteFrame(name, this);
    popups.addElement(sf);
    desktop.add(sf, new Integer(2));  // Keep sites on top for now
    sf.setVisible(true);
  }

  public void addPageFrame(String name) {
    PageFrame pf = new PageFrame(name, this);
    desktop.add(pf, new Integer(1));
    pf.setVisible(true);
    pf.setIconifiable(true);
    popups.addElement(pf);
  }

  public JInternalFrame getCurrentFrame() {
    for (int i = 0; i < popups.size(); i++) {
      JInternalFrame currentFrame = (JInternalFrame)popups.elementAt(i);
      if (currentFrame.isSelected()) {
        return currentFrame;
      }
    }
    return null;
  }
}