package org.mindswap.swoop.utils.ui;
/**
* @author Obtained from http://forums.java.sun.com
*
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/** * A JTabbedPane which has a close ('X') icon on each tab. * * To add a tab, use the method addTab(String, Component) * * To have an extra icon on each tab (e.g. like in JBuilder, showing the file type) use * the method addTab(String, Component, Icon). Only clicking the 'X' closes the tab. */
public class JTabbedPaneWithCloseIcons extends JTabbedPane implements MouseListener {
public JTabbedPaneWithCloseIcons() {
super();
addMouseListener(this);
}
public void addTab(String title, Component component) {
this.addTab(title, component, null);
}
public void addTab(String title, Component component, Icon extraIcon) {
super.addTab(title, new CloseTabIcon(extraIcon), component);
}
public void mouseClicked(MouseEvent e) {
try {
int tabNumber=getUI().tabForCoordinate(this, e.getX(), e.getY());
if (tabNumber < 0) return;
Rectangle rect=((CloseTabIcon)getIconAt(tabNumber)).getBounds();
if (rect.contains(e.getX(), e.getY())) {
//the tab is being closed
this.removeTabAt(tabNumber);
}
}
catch (Exception ex) {
ex.printStackTrace();
}
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
}/** * The class which generates the 'X' icon for the tabs. The constructor * accepts an icon which is extra to the 'X' icon, so you can have tabs * like in JBuilder. This value is null if no extra icon is required. */
class CloseTabIcon implements Icon {
private int x_pos;
private int y_pos;
private int width;
private int height;
private Icon fileIcon;
public CloseTabIcon(Icon fileIcon) {
this.fileIcon=fileIcon;
width=18;
height=18;
}
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.black);
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);
if (fileIcon != null) {
fileIcon.paintIcon(c, g, x+width, y_p);
}
}
public int getIconWidth() {
return width + (fileIcon != null? fileIcon.getIconWidth() : 0);
}
public int getIconHeight() {
return height;
}
public Rectangle getBounds() {
return new Rectangle(x_pos, y_pos, width, height);
}
}