Java tutorial
/* * soapUI, copyright (C) 2004-2009 eviware.com * * soapUI is free software; you can redistribute it and/or modify it under the * terms of version 2.1 of the GNU Lesser General Public License as published by * the Free Software Foundation. * * soapUI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Lesser General Public License for more details at gnu.org. */ import java.awt.Color; import java.awt.GradientPaint; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Paint; import javax.swing.JLabel; import javax.swing.JOptionPane; public class Main { public static void main(String[] args) throws Exception { GradientLabel label = new GradientLabel("java2s.com"); JOptionPane.showMessageDialog(null, label); } } class GradientLabel extends JLabel { // ------------------------------ FIELDS ------------------------------ private Color start; private Color end; // --------------------------- CONSTRUCTORS --------------------------- public GradientLabel(String text) { super(text); start = Color.LIGHT_GRAY; end = getBackground(); } public GradientLabel(String text, Color start, Color end) { super(text); this.start = start; this.end = end; } // -------------------------- OTHER METHODS -------------------------- public void paint(Graphics g) { int width = getWidth(); int height = getHeight(); // Create the gradient paint GradientPaint paint = new GradientPaint(0, 0, start, width, height, end, true); // we need to cast to Graphics2D for this operation Graphics2D g2d = (Graphics2D) g; // save the old paint Paint oldPaint = g2d.getPaint(); // set the paint to use for this operation g2d.setPaint(paint); // fill the background using the paint g2d.fillRect(0, 0, width, height); // restore the original paint g2d.setPaint(oldPaint); super.paint(g); } }