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;
/**
* 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(" ", p1);
closableTabbedPane.addTab(" ", 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);
}
}