java – JDesktopPane调整大小

我们遇到的问题是,在将内部框架从第一个窗口移动到第二个窗口之后,当我们调整第一个窗口的大小时,第二个窗口的内部框架也被调整大小.

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyVetoException;

import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

class FirstFrame extends JFrame
{
  JDesktopPane desktopPane = new JDesktopPane();

  SecondFrame secondFrame;

  public FirstFrame(SecondFrame secondFrame)
  {
    this.secondFrame = secondFrame;
    setTitle("FirstFrame example");
    setDefaultCloSEOperation(EXIT_ON_CLOSE);
    add(desktopPane);

    JMenuBar menuBar = new JMenuBar();
    JMenu menu = new JMenu("File");
    JMenuItem item = new JMenuItem("Move");

    item.addActionListener(new ActionListener()
    {

      @Override
      public void actionPerformed(ActionEvent actionevent)
      {
        moveFrame();
      }
    });

    menu.add(item);
    menuBar.add(menu);
    setJMenuBar(menuBar);

  }

  public void addAnInternalFrame()
  {
    JInternalFrame frame = new JInternalFrame();
    frame.setTitle("An Internal Frame");

    desktopPane.add(frame);
    frame.setVisible(true);
    frame.setMaximizable(true);
    try
    {
      frame.setSelected(true);
      frame.setMaximum(true);
    }
    catch (PropertyVetoException e)
    {
      e.printstacktrace();
    }

  }

  public void moveFrame()
  {
    JInternalFrame selectedFrame = desktopPane.getSelectedFrame();
    desktopPane.remove(selectedFrame);
    desktopPane.repaint();

    secondFrame.addInternalFrame(selectedFrame);
  }
}

class SecondFrame extends JFrame
{
  JDesktopPane desktopPane = new JDesktopPane();

  public SecondFrame()
  {
    setTitle("SecondFrame example");
    setDefaultCloSEOperation(EXIT_ON_CLOSE);
    add(desktopPane);
  }

  public void addInternalFrame(JInternalFrame frame)
  {
    desktopPane.add(frame);
  }
}

public class DesktopPaneExample
{
  public static void main(String args[]) throws PropertyVetoException
  {

    SecondFrame secondFrame = new SecondFrame();

    FirstFrame firstFrame = new FirstFrame(secondFrame);

    firstFrame.setSize(400,400);
    firstFrame.setLocation(100,100);
    firstFrame.setVisible(true);
    firstFrame.addAnInternalFrame();

    secondFrame.setSize(400,400);
    secondFrame.setLocation(520,100);
    secondFrame.setVisible(true);




  }
}

在上述示例应用程序中,进行复制
1)单击菜单文件>移动
2)调整第一个窗口大小

注意：这只能在Java 1.7中重现.我使用jdk1.7.0_03.

更新：添加更多信息

这在Java 1.6(jdk1.6.0_21)上是不可重复的