如何将放置在容器底部的最小化成分？(How to move minimized components

我有它在容器中三个组成部分和按钮。 当我击最小化按钮部件被最小化到容器的底部，并且当我打最小化的部件然后它获取最大化。

假设三个组件都趴在底部，如果我最大限度的第二个组件然后它得到最大化和最小化的第三组件不采取第二的位置，这仍然是空间。

截图

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.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.plaf.basic.BasicInternalFrameTitlePane;
import javax.swing.plaf.basic.BasicInternalFrameUI;

public class Test2 {

    public Test2() throws HeadlessException, PropertyVetoException {
        createAndShowGUI();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    new Test2();
                } 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, 1, 200);

        frame.setVisible(true);
    }

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

        JPanel jp = new JPanel();
        JLabel jl=new JLabel("panel"+x);

        JButton jb = new JButton("_");
        JButton jb2 = new JButton("[]");
        JButton jb3 = new JButton("X");

        jInternalFrame.setLayout(new GridLayout(2, 2));
jp.add(jl);
        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.repaint();

        jdp.add(jInternalFrame);
    }
}

Answer 1:

我曾与金属和Windows L＆F测试这一点，你可能需要一些其他人来测试它。

基本上，当组件被无效和doLayout方法被调用时，我们检查是否有任何存在JInternalFrame.JDesktopIcon组件。 然后，我们把这些和布局出来，因为我们喜欢...

public class TestInternalFrame {

    public static void main(String[] args) {
        new TestInternalFrame();
    }

    private int xpos = 0;
    private int ypos = 0;

    public TestInternalFrame() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (Exception exp) {
                    exp.printStackTrace();
                }
                DesktopPane pane = new DesktopPane();
                pane.add(newInternalFrame());
                pane.add(newInternalFrame());
                pane.add(newInternalFrame());

                JFrame frame = new JFrame();
                frame.add(pane);
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setSize(400, 400);
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);

            }
        });
    }

    public JInternalFrame newInternalFrame() {
        JInternalFrame inf = new JInternalFrame("Blah", true, true, true, true);
        inf.setLocation(xpos, ypos);
        inf.setSize(100, 100);
        inf.setVisible(true);

        xpos += 50;
        ypos += 50;

        return inf;
    }

    public class DesktopPane extends JDesktopPane {

        @Override
        public void doLayout() {
            super.doLayout();
            List<Component> icons = new ArrayList<Component>(25);
            for (Component comp : getComponents()) {
                if (comp instanceof JInternalFrame.JDesktopIcon) {
                    icons.add(comp);
                }
            }

            int x = 0;
            for (Component icon : icons) {

                int y = getHeight() - icon.getHeight();
                icon.setLocation(x, y);
                x += icon.getWidth();

            }
        }
    }
}

毫无疑问，这是一个粗略的黑客

更新

int x = 0;
for (Component icon : icons) {
    int y = getHeight() - icon.getHeight();
    icon.setLocation(x, y);
    x += icon.getWidth();
    setLayer(icon, 10); // <--- Add me
}

你的其他问题，只需将图标移动到一个更高的层。 这样做的问题，是你真正需要找到一个层不够高。 你可以使用Integer.MAX_VALUE ，但是这是一个有点苛刻（你可能想要的东西在的，顶部），相反，你可以计算出最大层和坐+1 ontop的那...

public void doLayout() {
    super.doLayout();
    List<Component> icons = new ArrayList<Component>(25);
    int maxLayer = 0;
    for (Component comp : getComponents()) {
        if (comp instanceof JInternalFrame.JDesktopIcon) {
            icons.add(comp);
            maxLayer = Math.max(getLayer(comp), maxLayer);
        }
    }

    maxLayer++;
    int x = 0;
    for (Component icon : icons) {

        int y = getHeight() - icon.getHeight();
        icon.setLocation(x, y);
        x += icon.getWidth();
        setLayer(icon, maxLayer);

    }
}

你真的需要花时间来学习如何使用内部框架和如何使用分层窗格的（至少在最后一部分）覆盖在这些...

Answer 2:

类似的东西：

jdp.setDesktopManager( new DefaultDesktopManager(){
    @Override
    public void deiconifyFrame(JInternalFrame f) {
        super.deiconifyFrame(f);
        JDesktopPane d = f.getDesktopPane();
         JInternalFrame[] frames = d.getAllFrames();
         for(JInternalFrame frame : frames ) {
             Rectangle bounds = getBoundsForIconOf(frame);
              // relayout all frames
         }
    }
});

文章来源: How to move minimized components placed at the bottom of the container?