如何保持在最前面最小化的JInternalFrame(how to keep minimized j

2019-07-19 21:38发布

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我有四个内部帧，并在其中3个按钮。当我打的最大化按钮，最大化但重叠的所有frames.But我的观点是，它应该显示最小化的框架。 请看下面的代码 

  package Project;

import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyVetoException;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.plaf.basic.BasicInternalFrameTitlePane;
import javax.swing.plaf.basic.BasicInternalFrameUI;

public class Test {

    public Test() throws HeadlessException, PropertyVetoException {
        createAndShowGUI();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    new Test();
                } catch (HeadlessException ex) {
                    //Logger.getLogger(MinPanel1.class.getName()).log(Level.SEVERE, null, ex);
                } catch (PropertyVetoException ex) {
                    // Logger.getLogger(MinPanel1.class.getName()).log(Level.SEVERE, null, ex);
                }

            }
        });
    }

    private void createAndShowGUI() throws HeadlessException, PropertyVetoException {
        JFrame frame = new JFrame();
        frame.setResizable(true);
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        final JDesktopPane jdp = new JDesktopPane() {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(400, 400);
            }
        };

        frame.setContentPane(jdp);
        frame.pack();

        createAndAddInternalFrame(jdp, 0, 0);
        createAndAddInternalFrame(jdp, 200, 0);
        createAndAddInternalFrame(jdp, 400, 0);
        createAndAddInternalFrame(jdp, 600, 0);


        frame.setVisible(true);
    }

    private void createAndAddInternalFrame(final JDesktopPane jdp, int x, int y) throws PropertyVetoException {
        final JInternalFrame jInternalFrame = new JInternalFrame("Test1", true, true, true, true);
        jInternalFrame.setLocation(x, y);
               final JInternalFrame jInternalFrame1 = new JInternalFrame("Test2", true, true, true, true);
JPanel jp= new JPanel();
        JButton jb1 = new JButton("min");
        JButton jb2 = new JButton("[]");
        JButton jb3 = new JButton("X");

        jInternalFrame.setLayout(new GridLayout(2, 2,2,2));
        jInternalFrame1.add(jb1);
        jInternalFrame.setSize(200, 200);//testing
        jInternalFrame.setLayout(new GridLayout(2,2));

        JButton jb= new JButton("min");
       // jInternalFrame.add(jb);
      //  jInternalFrame.add(jb3);
        //jInternalFrame.add(jb2);
        jp.add(jb);
        jp.add(jb2);
        jp.add(jb3);

        jInternalFrame.add(jp);
        jb.addActionListener(new ActionListener()
                {


            @Override
            public void actionPerformed(ActionEvent ae) {
                        try {
                            jInternalFrame.setIcon(true);
                        } catch (PropertyVetoException ex) {
                        }

            }


        });
        jb1.addActionListener(new ActionListener()
                {


            @Override
            public void actionPerformed(ActionEvent ae) {
                        try {
                            jInternalFrame.setIcon(true);
                        } catch (PropertyVetoException ex) {
                        }

            }


        });
        jb2.addActionListener(new ActionListener()
        {


    @Override
    public void actionPerformed(ActionEvent ae) {
        try {
              jInternalFrame.setMaximum(true);

            }
        catch(Exception e)
        {

        }

    }


});jb3.addActionListener(new ActionListener()
{


@Override
public void actionPerformed(ActionEvent ae) {
        try {
            jInternalFrame.dispose();
        } catch (Exception ex) {
        }

}


});

        BasicInternalFrameTitlePane titlePane = (BasicInternalFrameTitlePane) ((BasicInternalFrameUI) jInternalFrame.getUI()).getNorthPane();
        jInternalFrame.remove(titlePane);


        jInternalFrame.setVisible(true);
        jInternalFrame1.setVisible(true);

        jdp.add(jInternalFrame);
                //jdp.add(jInternalFrame1);

    }
}

Answer 1:

你可以尝试： JDesktopPane#setComponentZOrder(Component com, int i) 。 按照文档 ：

将指定组件移动到所述容器中的指定的z顺序索引。 z顺序确定部件被绘的顺序; 最高z顺序的组件首先涂料和具有最低z顺序的组件最后绘制。 其中组分重叠，与所述较低的z顺序组件绘制在具有较高z顺序的组件。

...

注意：

并非所有的平台都支持从一个容器改变重量级组件的z顺序到另一个，而不调用的removeNotify。 有没有办法来检测平台是否支持这一点，因此开发人员不应该做任何假设。

这将允许您设置的顺序JInternalFrame包含在小号JDesktopPane 。

更新：

按我的评论：

从我可以看到它的默认行为，似乎没有超过COM-能够通过JDesktopPane#setComponentZOrder(Component com, int i)当JInternalFrame 图标化 。 它正常工作时，其处于正常状态

解：

我建议调整其上最大化层JInternalFrame所示： 

    jb2.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent ae) {
            try {
                if (jInternalFrame.isMaximum()) {//restore
                    jInternalFrame.pack();
                } else {//maximize
                    jInternalFrame.setMaximum(true);
                }
                jdp.remove(jInternalFrame);
                jdp.add(jInternalFrame, JDesktopPane.FRAME_CONTENT_LAYER);
                jdp.revalidate();
                jdp.repaint();
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    });

我们也不能忘记将它添加回DEFAULT_LAYER当它被最小化： 

    jb.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent ae) {
            try {
                if (jInternalFrame.getLayer() == JDesktopPane.FRAME_CONTENT_LAYER) {
                    jdp.remove(jInternalFrame);
                    jdp.add(jInternalFrame, JDesktopPane.DEFAULT_LAYER);
                    jdp.revalidate();
                    jdp.repaint();
                }
                jInternalFrame.pack();
                jInternalFrame.setIcon(true);
            } catch (PropertyVetoException ex) {
            }

        }
    });

下面是完整的代码： 

import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyVetoException;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.plaf.basic.BasicInternalFrameTitlePane;
import javax.swing.plaf.basic.BasicInternalFrameUI;

public class Test {

    public Test() throws HeadlessException, PropertyVetoException {
        createAndShowGUI();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    new Test();
                } catch (HeadlessException ex) {
                    ex.printStackTrace();
                } catch (PropertyVetoException ex) {
                    ex.printStackTrace();
                }

            }
        });
    }

    private void createAndShowGUI() throws HeadlessException, PropertyVetoException {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        final JDesktopPane jdp = new JDesktopPane() {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(600, 400);
            }
        };

        frame.setContentPane(jdp);
        frame.pack();

        createAndAddInternalFrame(jdp, 0, 0);
        createAndAddInternalFrame(jdp, 300, 0);
        createAndAddInternalFrame(jdp, 0, 200);

        frame.setVisible(true);
    }

    private void createAndAddInternalFrame(final JDesktopPane jdp, int x, int y) throws PropertyVetoException {
        final JInternalFrame jInternalFrame = new JInternalFrame("Test1", true, true, true, true);
        jInternalFrame.setLocation(x, y);

        JPanel jp = new JPanel();

        JButton jb = new JButton("min");
        JButton jb2 = new JButton("max/restore");
        JButton jb3 = new JButton("close");

        jInternalFrame.setLayout(new GridLayout(2, 2));

        jp.add(jb);
        jp.add(jb2);
        jp.add(jb3);

        jInternalFrame.add(jp);

        jb.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    if (jInternalFrame.getLayer() == JDesktopPane.FRAME_CONTENT_LAYER) {
                        jdp.remove(jInternalFrame);
                        jdp.add(jInternalFrame, JDesktopPane.DEFAULT_LAYER);
                        jdp.revalidate();
                        jdp.repaint();
                    }
                    jInternalFrame.pack();
                    jInternalFrame.setIcon(true);
                } catch (PropertyVetoException ex) {
                    ex.printStackTrace();
                }

            }
        });
        jb2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    if (jInternalFrame.isMaximum()) {//restore
                        jInternalFrame.pack();
                    } else {//maximize
                        jInternalFrame.setMaximum(true);
                    }
                    jdp.remove(jInternalFrame);
                    jdp.add(jInternalFrame, JDesktopPane.FRAME_CONTENT_LAYER);
                    jdp.revalidate();
                    jdp.repaint();
                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        });
        jb3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    jInternalFrame.dispose();
                } catch (Exception ex) {
                    ex.printStackTrace();
                }

            }
        });

        BasicInternalFrameTitlePane titlePane = (BasicInternalFrameTitlePane) ((BasicInternalFrameUI) jInternalFrame.getUI()).getNorthPane();
        jInternalFrame.remove(titlePane);

        jInternalFrame.pack();
        jInternalFrame.setVisible(true);

        jdp.add(jInternalFrame);
    }
}


Answer 2:

下面是调用的结果moveToBack()的最大化按钮的处理程序。 还记得打电话pack()的内部框架上。

附录：我已经更新的例子，包括最大 ， 最小和图标按钮。 按钮使用Action更容易测试和内部框架具有不同的名称。 看看createToolBar()来动态地改变L＆F，例如 

frame.add(createToolBar(frame), BorderLayout.NORTH);


import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.beans.PropertyVetoException;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

//* @see https://stackoverflow.com/a/14874924/230513 */
public class Test {

    public Test() {
        createAndShowGUI();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                new Test();
            }
        });
    }

    private void createAndShowGUI() {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        final JDesktopPane jdp = new JDesktopPane() {

            @Override
            public Dimension getPreferredSize() {
                return new Dimension(600, 400);
            }
        };
        for (int i = 0; i < 4; i++) {
            createInternalFrame(jdp, 100 * i, 100 * i);
        }
        frame.add(jdp);
        frame.pack();
        frame.setVisible(true);
    }

    private void createInternalFrame(final JDesktopPane jdp, int x, int y) {
        final JInternalFrame jif = new JInternalFrame("Test" + x, true, true, true, true);
        jif.setLocation(x, y);
        JPanel jp = new JPanel();
        jp.add(new JButton(new AbstractAction("max") {

            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    jif.setMaximum(true);
                    jif.moveToBack();
                } catch (PropertyVetoException e) {
                    e.printStackTrace();
                }

            }
        }));
        jp.add(new JButton(new AbstractAction("min") {

            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    jif.setMaximum(false);
                } catch (PropertyVetoException e) {
                    e.printStackTrace();
                }

            }
        }));
        jp.add(new JButton(new AbstractAction("icon") {

            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    jif.setIcon(true);
                } catch (PropertyVetoException e) {
                    e.printStackTrace();
                }
            }
        }));
        jif.add(jp);
        jif.pack();
        jif.setVisible(true);
        jdp.add(jif);
    }
}


文章来源: how to keep minimized jinternalframe on top
标签： java swing layout jinternalframe jdesktoppane
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