Java tutorial
/* * Copyright (c) 2007, Romain Guy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of the TimingFramework project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Composite; import java.awt.Dimension; import java.awt.Font; import java.awt.GradientPaint; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Paint; import java.awt.RadialGradientPaint; import java.awt.RenderingHints; import java.awt.font.FontRenderContext; import java.awt.font.TextLayout; import java.awt.geom.AffineTransform; import java.awt.geom.Area; import java.awt.geom.Ellipse2D; import java.awt.geom.Point2D; import java.awt.geom.Rectangle2D; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingUtilities; /** * * @author Romain GUy */ public class RadialGradientApp extends JFrame { /** Creates a new instance of RadialGradientApp */ public RadialGradientApp() { super("Radial Gradient"); JPanel panel = new JPanel(); panel.add(new SphereComponent()); add(panel); pack(); setLocationRelativeTo(null); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public static void main(String... args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new RadialGradientApp().setVisible(true); } }); } } /* * Copyright (c) 2007, Romain Guy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of the TimingFramework project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * * @author Romain Guy */ class SphereComponent extends JComponent { /** Creates a new instance of SphereComponent */ public SphereComponent() { } @Override public Dimension getPreferredSize() { return new Dimension(120, 120); } @Override protected void paintComponent(Graphics g) { setFont(getFont().deriveFont(70.f).deriveFont(Font.BOLD)); Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); // Retains the previous state Paint oldPaint = g2.getPaint(); // Fills the circle with solid blue color g2.setColor(new Color(0x0153CC)); g2.fillOval(0, 0, getWidth() - 1, getHeight() - 1); // Adds shadows at the top Paint p; p = new GradientPaint(0, 0, new Color(0.0f, 0.0f, 0.0f, 0.4f), 0, getHeight(), new Color(0.0f, 0.0f, 0.0f, 0.0f)); g2.setPaint(p); g2.fillOval(0, 0, getWidth() - 1, getHeight() - 1); // Adds highlights at the bottom p = new GradientPaint(0, 0, new Color(1.0f, 1.0f, 1.0f, 0.0f), 0, getHeight(), new Color(1.0f, 1.0f, 1.0f, 0.4f)); g2.setPaint(p); g2.fillOval(0, 0, getWidth() - 1, getHeight() - 1); // Creates dark edges for 3D effect p = new RadialGradientPaint(new Point2D.Double(getWidth() / 2.0, getHeight() / 2.0), getWidth() / 2.0f, new float[] { 0.0f, 1.0f }, new Color[] { new Color(6, 76, 160, 127), new Color(0.0f, 0.0f, 0.0f, 0.8f) }); g2.setPaint(p); g2.fillOval(0, 0, getWidth() - 1, getHeight() - 1); // Adds oval inner highlight at the bottom p = new RadialGradientPaint(new Point2D.Double(getWidth() / 2.0, getHeight() * 1.5), getWidth() / 2.3f, new Point2D.Double(getWidth() / 2.0, getHeight() * 1.75 + 6), new float[] { 0.0f, 0.8f }, new Color[] { new Color(64, 142, 203, 255), new Color(64, 142, 203, 0) }, RadialGradientPaint.CycleMethod.NO_CYCLE, RadialGradientPaint.ColorSpaceType.SRGB, AffineTransform.getScaleInstance(1.0, 0.5)); g2.setPaint(p); g2.fillOval(0, 0, getWidth() - 1, getHeight() - 1); // Adds oval specular highlight at the top left p = new RadialGradientPaint(new Point2D.Double(getWidth() / 2.0, getHeight() / 2.0), getWidth() / 1.4f, new Point2D.Double(45.0, 25.0), new float[] { 0.0f, 0.5f }, new Color[] { new Color(1.0f, 1.0f, 1.0f, 0.4f), new Color(1.0f, 1.0f, 1.0f, 0.0f) }, RadialGradientPaint.CycleMethod.NO_CYCLE); g2.setPaint(p); g2.fillOval(0, 0, getWidth() - 1, getHeight() - 1); // Restores the previous state g2.setPaint(oldPaint); // Draws the logo // FontRenderContext context = g2.getFontRenderContext(); // TextLayout layout = new TextLayout("R", getFont(), context); // Rectangle2D bounds = layout.getBounds(); // // float x = (getWidth() - (float) bounds.getWidth()) / 2.0f; // float y = (getHeight() + (float) bounds.getHeight()) / 2.0f; // // g2.setColor(Color.WHITE); // layout.draw(g2, x, y); // // Area shadow = new Area(layout.getOutline(null)); // shadow.subtract(new Area(layout.getOutline(AffineTransform.getTranslateInstance(1.0, 1.0)))); // g2.setColor(Color.BLACK); // g2.translate(x, y); // g2.fill(shadow); // g2.translate(-x, -y); } }