Java JSplitPane ClosableTab

拼搏现实的明天。 2023-10-05 19:18 17阅读 0赞

import java.awt.BorderLayout;
    import java.awt.Color;
    import java.awt.GridLayout;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import javax.swing.*;
    
    /**
     *
     * @author User
     */
    public class DynTabSplitDemo extends JFrame implements ActionListener {
    
    	JMenuBar bar;
    	JMenu mnu1, mnu2;
    	JMenuItem item1, item2, item3, item4;
    	JSplitPane jSplitPane, jSplitPane2;
    	JPanel jPanel1, jPanel2a, jPanel2b;
    	public static JLabel lblTest;
    	public static JTabbedPane tabbedPane;
    	private int tab_one_Count, tab_two_Count;
    	// int w, h;
    
    	public DynTabSplitDemo() {
    //        w = Toolkit.getDefaultToolkit().getScreenSize().width;
    //        h = Toolkit.getDefaultToolkit().getScreenSize().height;
    
    		// creating objects
    		bar = new JMenuBar();
    		mnu1 = new JMenu("File");
    		mnu2 = new JMenu("Entry");
    		item1 = new JMenuItem("Exit");
    		item2 = new JMenuItem("Sample1");
    		item3 = new JMenuItem("Sample2");
    		item4 = new JMenuItem("Sample3");
    		lblTest = new JLabel();
    		tabbedPane = new JTabbedPane();
    
    		mnu1.add(item1);
    		mnu2.add(item2);
    		mnu2.add(item3);
    		mnu2.add(item4);
    		bar.add(mnu1);
    		bar.add(mnu2);
    		setJMenuBar(bar);
    		setTitle("JSplitPane with ClosableTab Demo");
    		item1.addActionListener(this);
    		item2.addActionListener(this);
    		item3.addActionListener(this);
    		item4.addActionListener(this);
    		//
    		jPanel1 = new JPanel();
    		jPanel2a = new JPanel();
    		jPanel2b = new JPanel();
    		lblTest.setText("Hello");
    		jPanel1.setBackground(Color.decode("#90EE90"));
    		jPanel1.add(lblTest);
    		jPanel1.setLayout(new GridLayout());
    		jPanel2a.setLayout(new GridLayout());
    		jPanel2b.setLayout(new GridLayout());
    		jPanel2b.add(tabbedPane, BorderLayout.EAST);
    
    		WelcomePanel wPanel = new WelcomePanel();
    		tabbedPane.add("Welcome", wPanel);
    
    		TreeMenuDemo tree = new TreeMenuDemo();
    		jPanel2a.add(tree);
    
    		jSplitPane2 = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, jPanel2a, jPanel2b);
    		jSplitPane2.setOneTouchExpandable(true);
    
    		// jSplitPane2.setDividerLocation(200);
    		jSplitPane2.setResizeWeight(0.15);
    
    		jSplitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, jSplitPane2, jPanel1);
    		jSplitPane.setOneTouchExpandable(true);
    		jSplitPane.setResizeWeight(0.95);
    		// jSplitPane.setDividerLocation(h-250);
    
    		getContentPane().add(jSplitPane, BorderLayout.CENTER);
    		setSize(800, 600);
    		setLocationRelativeTo(null);
    		// setExtendedState(MAXIMIZED_BOTH);
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		setVisible(true);
    	}
    
    	public static void main(String[] args) {
    		new DynTabSplitDemo();
    	}
    
    	@Override
    	public void actionPerformed(ActionEvent e) {
    		if (e.getSource() == item1) {
    			System.exit(0);
    		}
    		if (e.getSource() == item2) {
    			tab_one_Count++;
    			lblTest.setText("Open tab One");
    			JScrollPane scrollPane = new JScrollPane(new ExamplePanel1("Button Event"));
    			Icon icon = ClosableTabDemo.PAGE_ICON;
    			// adding tab with closable icon
    			ClosableTabDemo.addClosableTab(tabbedPane, scrollPane, "Sample1", icon);
    		}
    		if (e.getSource() == item3) {
    			tab_two_Count++;
    			lblTest.setText("Open tab Two");
    			JScrollPane scrollPane = new JScrollPane(new ExamplePanel2());
    			Icon icon = ClosableTabDemo.PAGE_ICON;
    			ClosableTabDemo.addClosableTab(tabbedPane, scrollPane, "Sample2", icon);
    		}
    		if (e.getSource() == item4) {
    			lblTest.setText("Open tab Three");
    			JScrollPane scrollPane = new JScrollPane(new ExamplePanel3());
    			Icon icon = ClosableTabDemo.PAGE_ICON;
    			ClosableTabDemo.addClosableTab(tabbedPane, scrollPane, "Sample3", icon);
    		}
    	}
    }

import java.awt.FlowLayout;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    
    import javax.swing.BorderFactory;
    import javax.swing.Icon;
    import javax.swing.ImageIcon;
    import javax.swing.JButton;
    import javax.swing.JComponent;
    import javax.swing.JLabel;
    import javax.swing.JPanel;
    import javax.swing.JScrollPane;
    import javax.swing.JTabbedPane;
    
    public class ClosableTabDemo {
    
    	public static final Icon PAGE_ICON = new ImageIcon("PAGE_ICON.jpg");
    	private static final Icon CLOSE_TAB_ICON = new ImageIcon("CLOSE_TAB_ICON.jpg");
    
    	public static void addClosableTab(final JTabbedPane tabbedPane, final JComponent c, final String title,
    			final Icon icon) {
    		// Add the tab to the pane without any label
    		tabbedPane.addTab(null, c);
    		int pos = tabbedPane.indexOfComponent(c);
    		// tabbedPane.set
    
    		// Create a FlowLayout that will space things 5px apart
    		FlowLayout f = new FlowLayout(FlowLayout.CENTER, 5, 0);
    
    		// Make a small JPanel with the layout and make it non-opaque
    		JPanel pnlTab = new JPanel(f);
    		pnlTab.setOpaque(false);
    
    		// Add a JLabel with title and the left-side tab icon
    		JLabel lblTitle = new JLabel(title);
    		lblTitle.setIcon(icon);// tab icon
    
    		// Create a JButton for the close tab button
    		JButton btnClose = new JButton();
    		btnClose.setOpaque(false);
    
    		// Configure icon and rollover icon for button
    		btnClose.setRolloverIcon(CLOSE_TAB_ICON);
    		btnClose.setRolloverEnabled(true);
    		// btnClose.setIcon(RGBGrayFilter.getDisabledIcon(btnClose, CLOSE_TAB_ICON));
    		btnClose.setIcon(CLOSE_TAB_ICON);
    		// Set border null so the button doesn't make the tab too big
    		btnClose.setBorder(null);
    
    		// Make sure the button can't get focus, otherwise it looks funny
    		btnClose.setFocusable(false);
    
    		// Put the panel together
    		pnlTab.add(lblTitle);
    		pnlTab.add(btnClose);
    
    		// Add a thin border to keep the image below the top edge of the tab
    		// when the tab is selected
    		pnlTab.setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0));
    
    		// Now assign the component for the tab
    		tabbedPane.setTabComponentAt(pos, pnlTab);
    
    		// Add the listener that removes the tab
    		ActionListener listener = new ActionListener() {
    
    			@Override
    			public void actionPerformed(ActionEvent e) {
    				// The component parameter must be declared "final" so that it can be
    				// referenced in the anonymous listener class like this.
    				tabbedPane.remove(c);
    			}
    		};
    		btnClose.addActionListener(listener);
    
    		// Optionally bring the new tab to the front
    		tabbedPane.setSelectedComponent(c);
    	}
    
    }

import java.awt.*;
    import javax.swing.*;
    import javax.swing.tree.*;
    import javax.swing.event.*;
    
    public class TreeMenuDemo extends JPanel
            implements TreeSelectionListener {
    
        private JTree tree;
    
        public TreeMenuDemo() {
            setLayout(new GridLayout());      
           
            DefaultMutableTreeNode root = new DefaultMutableTreeNode("Tree Menu");
            DefaultMutableTreeNode child1, child2;
            DefaultMutableTreeNode grandChild1, grandChild2, grandChild3, grandChild4;
            child1 = new DefaultMutableTreeNode("File");
            child2 = new DefaultMutableTreeNode("Entry");
            root.add(child1);
            root.add(child2);
    
            grandChild1 = new DefaultMutableTreeNode("Exit");
            child1.add(grandChild1);
    
            grandChild2 = new DefaultMutableTreeNode("Sample1");
            grandChild3 = new DefaultMutableTreeNode("Sample2");
            grandChild4 = new DefaultMutableTreeNode("Sample3");
    
            child2.add(grandChild2);
            child2.add(grandChild3);
            child2.add(grandChild4);
            tree = new JTree(root);
            tree.addTreeSelectionListener(this);
            add(new JScrollPane(tree), BorderLayout.CENTER);
            //setBackground(Color.decode("#90EE90"));
            setSize(250, 275);
            setVisible(true);
        }
    
        @Override
        public void valueChanged(TreeSelectionEvent event) {
            if (tree.getLastSelectedPathComponent().toString().equals("Exit")) {
                System.exit(0);
            }
            if (tree.getLastSelectedPathComponent().toString().equals("Sample1")) {
                DynTabSplitDemo.lblTest.setText("Open tab One");
                JScrollPane scrollPane = new JScrollPane(new ExamplePanel1("Colors"));
                Icon icon = ClosableTabDemo.PAGE_ICON;
                ClosableTabDemo.addClosableTab(DynTabSplitDemo.tabbedPane, scrollPane, "Sample1", icon);
            }
            if (tree.getLastSelectedPathComponent().toString().equals("Sample2")) {
                 DynTabSplitDemo.lblTest.setText("Open tab Two");
                JScrollPane scrollPane = new JScrollPane(new ExamplePanel2());
                Icon icon = ClosableTabDemo.PAGE_ICON;
                ClosableTabDemo.addClosableTab(DynTabSplitDemo.tabbedPane, scrollPane, "Sample2", icon);
            }
            if (tree.getLastSelectedPathComponent().toString().equals("Sample3")) {
                 DynTabSplitDemo.lblTest.setText("Open tab Three");
                JScrollPane scrollPane = new JScrollPane(new ExamplePanel3());
                Icon icon = ClosableTabDemo.PAGE_ICON;
                ClosableTabDemo.addClosableTab(DynTabSplitDemo.tabbedPane, scrollPane, "Sample3", icon);
            }
        }
    }

import java.awt.Color;
    import javax.swing.JEditorPane;
    
    public class WelcomePanel extends JEditorPane {
    
        public WelcomePanel() {
            //rPanel.setBounds(10, 10, 200, 200);
            setBackground(Color.decode("#FFDAB9"));
            setBorder(new javax.swing.border.LineBorder(new java.awt.Color(100, 50, 150), 5, true));
            setContentType("text/html");
            // create some simple html as a string
            String htmlString = "<html>\n"
                    + "<body>\n"
                    + "<h1 style='color: blue'>Welcome!</h1>\n"
                    + "<h2 style='color: #ff0000'>This is the main application window</h2>\n"
                    + "<h2 style='color: #006400'>You can add closable tab here</h2>\n"
                    + "<p>Write some welcome text here</p>\n"
                    + "<p style='color : black; background-color : #fafafa;'>Enjoy!</p>\n"
                    + "</body>\n";
            setText(htmlString);
        }
    }

import java.awt.Color;
    import javax.swing.JEditorPane;
    
    public class ExamplePanel1 extends JEditorPane {
    
    	public ExamplePanel1() {
    		// rPanel.setBounds(10, 10, 200, 200);
    		setBackground(Color.decode("#FFDAB9"));
    		setBorder(new javax.swing.border.LineBorder(new java.awt.Color(100, 50, 150), 5, true));
    		setContentType("text/html");
    		// create some simple html as a string
    		String htmlString = "<html>\n" + "<body>\n" + "<h1 style='color: blue'>Welcome!</h1>\n"
    				+ "<h2 style='color: #ff0000'>This is the main application window</h2>\n"
    				+ "<h2 style='color: #006400'>You can add closable tab here</h2>\n"
    				+ "<p>Write some welcome text here</p>\n"
    				+ "<p style='color : black; background-color : #fafafa;'>Enjoy!</p>\n" + "</body>\n";
    		setText(htmlString);
    	}
    
    	public ExamplePanel1(String string) {
    		// TODO Auto-generated constructor stub
    	}
    }

import java.awt.Color;
    import javax.swing.JEditorPane;
    
    public class ExamplePanel2 extends JEditorPane {
    
    	public ExamplePanel2() {
    		// rPanel.setBounds(10, 10, 200, 200);
    		setBackground(Color.decode("#FFDAB9"));
    		setBorder(new javax.swing.border.LineBorder(new java.awt.Color(100, 50, 150), 5, true));
    		setContentType("text/html");
    		// create some simple html as a string
    		String htmlString = "<html>\n" + "<body>\n" + "<h1 style='color: blue'>Welcome!</h1>\n"
    				+ "<h2 style='color: #ff0000'>This is the Sample2 window</h2>\n"
    				+ "<h2 style='color: #006400'>You can close tab by click x</h2>\n"
    				+ "<p>Write some welcome text here</p>\n"
    				+ "<p style='color : black; background-color : #fafafa;'>Enjoy!</p>\n" + "</body>\n";
    		setText(htmlString);
    	}
    
    	public ExamplePanel2(String string) {
    		// TODO Auto-generated constructor stub
    	}
    }

import java.awt.Color;
    import javax.swing.JEditorPane;
    
    public class ExamplePanel3 extends JEditorPane {
    
    	public ExamplePanel3() {
    		// rPanel.setBounds(10, 10, 200, 200);
    		setBackground(Color.decode("#FFDAB9"));
    		setBorder(new javax.swing.border.LineBorder(new java.awt.Color(100, 50, 150), 5, true));
    		setContentType("text/html");
    		// create some simple html as a string
    		String htmlString = "<html>\n" + "<body>\n" + "<h1 style='color: blue'>Welcome!</h1>\n"
    				+ "<h2 style='color: #ff0000'>This is the Sample3 window</h2>\n"
    				+ "<h2 style='color: #006400'>You can close tab by click x</h2>\n"
    				+ "<p>Write some welcome text here</p>\n"
    				+ "<p style='color : black; background-color : #fafafa;'>Enjoy!</p>\n" + "</body>\n";
    		setText(htmlString);
    	}
    
    	public ExamplePanel3(String string) {
    		// TODO Auto-generated constructor stub
    	}
    }

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[20210206094042448.jpg]: https://img-blog.csdnimg.cn/20210206094042448.jpg
[20210206094042446.jpg]: https://img-blog.csdnimg.cn/20210206094042446.jpg
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