What this is

This file is part of the Tame Swing collection that we have compiled. All of the Java source code in these examples was created by Nobuo Tamemasa. As these examples have become hard to find on the internet, we have put them in one place here, supported by minimal advertising. In time we will include images of each running sample Java/Swing application.

The intent of having these files here is to help you learn Java and Swing by example, and Tame certainly created some terrific examples of the power of the Swing framework.

Other links

Keywords/tags

java, swing, example, sample, source, custom, tab, tabbed, color, JTabbedPane

The source code

/* (swing1.1.1) */
package tame.examples;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.UIManager;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.plaf.metal.MetalTabbedPaneUI;

/**
@author Nobuo Tamemasa
@version 1.0 08/23/99
*/
public class ColorTabbedPaneExample extends JFrame {

  String[] titles = {"blue","cyan","green","yellow",
                     "orange","pink","red"};
  Color[]  colors = {Color.blue, Color.cyan, Color.green, Color.yellow,
                    Color.orange,Color.pink, Color.red };
  JTabbedPane tabbedPane;

  public ColorTabbedPaneExample() {
    super("ColorTabbedPaneExample (Metal)");

    UIManager.put("TabbedPane.selected", colors[0]);
    tabbedPane = new JTabbedPane() {
      public void updateUI(){
        setUI(new ColoredTabbedPaneUI());
      }
    };
    for (int i=0;i<titles.length;i++) {
      tabbedPane.addTab(titles[i], createPane (titles[i], colors[i]));
      tabbedPane.setBackgroundAt(i, colors[i].darker());
    }
    tabbedPane.setSelectedIndex(0);

    tabbedPane.addChangeListener(new ChangeListener() {
      public void stateChanged(ChangeEvent e) {
        int i = tabbedPane.getSelectedIndex();
        ((ColoredTabbedPaneUI)tabbedPane.getUI()).setSelectedTabBackground(colors[i]);
        tabbedPane.revalidate();
        tabbedPane.repaint();
      }
    });
    getContentPane().add(tabbedPane);
  }

  JPanel createPane(String title, Color color) {
    JPanel panel = new JPanel();
    panel.setBackground(color);
    JLabel label = new JLabel(title);
    label.setOpaque(true);
    label.setBackground(Color.white);
    panel.add(label);
    return panel;
  }

  class ColoredTabbedPaneUI extends MetalTabbedPaneUI {
    public void setSelectedTabBackground(Color color) {
      selectColor = color;
    }
    protected void paintFocusIndicator(Graphics g, int tabPlacement,
                                       Rectangle[] rects, int tabIndex,
                                       Rectangle iconRect, Rectangle textRect,
                                       boolean isSelected) {
    }
  }

  public static void main(String[] args) {
    JFrame frame = new ColorTabbedPaneExample();
    frame.addWindowListener( new WindowAdapter() {
      public void windowClosing( WindowEvent e ) {
        System.exit(0);
      }
    });
    frame.setSize( 360, 100 );
    frame.setVisible(true);
  }
}