自定义带关闭按钮的TabbedPane

Disney2002

package test;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTabbedPane;import java.awt.Rectangle;import java.awt.Color;import java.awt.event.MouseListener;import java.awt.Component;import javax.swing.Icon;import java.awt.event.MouseEvent;import java.awt.Graphics;/** *自定义带关闭按钮的TabbedPane * @author  XiaoQuan */public class ClosableTabbedPane extends JTabbedPane implements MouseListener {    private static final long serialVersionUID = -5154435928212725041L;    public ClosableTabbedPane() {        super();        addMouseListener(this);    }    @Override    public void addTab(String title, Component component) {        super.addTab(title, null, component);    }    public void addTab(String title, Component component, Icon extraIcon) {        super.addTab(title, new CloseTabIcon(), component);    }    @Override    public void mouseClicked(MouseEvent e) {        int tabNumber = getUI().tabForCoordinate(this, e.getX(), e.getY());        if (tabNumber < 0) {            return;        }        if (((CloseTabIcon) getIconAt(tabNumber)) != null) {            Rectangle rect = ((CloseTabIcon) getIconAt(tabNumber)).getBounds();            if (rect.contains(e.getX(), e.getY())) {                this.removeTabAt(tabNumber);            }        }    }    public void mouseEntered(MouseEvent e) {    }    public void mouseExited(MouseEvent e) {    }    public void mousePressed(MouseEvent e) {    }    public void mouseReleased(MouseEvent e) {    }        public static void main(String args[]){        JFrame f =new JFrame();                ClosableTabbedPane closableTabbedPane =new ClosableTabbedPane();        JPanel p1 = new JPanel();        JPanel p2 = new JPanel();                closableTabbedPane.addTab("不带关闭按钮", p1);                closableTabbedPane.addTab("带关闭按钮", p2, null);                f.getContentPane().add(closableTabbedPane);        f.setSize(500,400);        f.setVisible(true);        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);    }}class CloseTabIcon implements Icon {    private int x_pos;    private int y_pos;    private int width;    private int height;    public CloseTabIcon() {        width = 16;        height = 16;    }    @Override    public void paintIcon(Component c, Graphics g, int x, int y) {        this.x_pos = x;        this.y_pos = y;        Color col = g.getColor();        g.setColor(Color.RED.darker());        int y_p = y + 2;        g.drawLine(x + 1, y_p, x + 12, y_p);        g.drawLine(x + 1, y_p + 13, x + 12, y_p + 13);        g.drawLine(x, y_p + 1, x, y_p + 12);        g.drawLine(x + 13, y_p + 1, x + 13, y_p + 12);        g.drawLine(x + 3, y_p + 3, x + 10, y_p + 10);        g.drawLine(x + 3, y_p + 4, x + 9, y_p + 10);        g.drawLine(x + 4, y_p + 3, x + 10, y_p + 9);        g.drawLine(x + 10, y_p + 3, x + 3, y_p + 10);        g.drawLine(x + 10, y_p + 4, x + 4, y_p + 10);        g.drawLine(x + 9, y_p + 3, x + 3, y_p + 9);        g.setColor(col);    }    @Override    public int getIconWidth() {        return width;    }    @Override    public int getIconHeight() {        return height;    }    public Rectangle getBounds() {        return new Rectangle(x_pos, y_pos, width, height);    }}