/* * * Copyright (c) 2007, 2011, Oracle and/or its affiliates. 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 Oracle 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. */ package java2d.demos.Mix; import static java.awt.Color.BLACK; import static java.awt.Color.BLUE; import static java.awt.Color.GREEN; import static java.awt.Color.RED; import static java.awt.Color.WHITE; import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.Font; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.Shape; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.font.FontRenderContext; import java.awt.geom.AffineTransform; import java.awt.geom.GeneralPath; import java.awt.geom.Line2D; import java.awt.geom.Path2D; import java.awt.geom.PathIterator; import java.awt.geom.Rectangle2D; import java2d.ControlsSurface; import java2d.CustomControls; import javax.swing.JLabel; import javax.swing.JTextField; /** * Generate a 3D text shape with GeneralPath, render a number of small * multi-colored rectangles and then render the 3D text shape. */ @SuppressWarnings("serial") public class Stars3D extends ControlsSurface { private static Color colors[] = { RED, GREEN, WHITE }; private static AffineTransform at = AffineTransform.getTranslateInstance(-5, -5); private Shape shape, tshape; private Shape ribbon; protected int fontSize = 72; protected String text = "OpenJDK"; protected int numStars = 300; public Stars3D() { setBackground(BLACK); setControls(new Component[] { new DemoControls(this) }); } @Override public void render(int w, int h, Graphics2D g2) { Rectangle2D rect = new Rectangle2D.Double(); for (int i = 0; i < numStars; i++) { g2.setColor(colors[i % 3]); g2.setComposite(AlphaComposite.getInstance( AlphaComposite.SRC_OVER, (float) Math.random())); rect.setRect(w * Math.random(), h * Math.random(), 2, 2); g2.fill(rect); } FontRenderContext frc = g2.getFontRenderContext(); Font font = new Font(Font.SERIF, Font.BOLD|Font.ITALIC, fontSize); shape = font.createGlyphVector(frc, text).getOutline(); tshape = at.createTransformedShape(shape); PathIterator pi = shape.getPathIterator(null); float seg[] = new float[6]; float tseg[] = new float[6]; GeneralPath working = new GeneralPath(Path2D.WIND_NON_ZERO); float x = 0, y = 0; // Current point on the path float tx = 0, ty = 0; // Transformed path point float cx = 0, cy = 0; // Last moveTo point, for SEG_CLOSE float tcx = 0, tcy = 0; // Transformed last moveTo point // // Iterate through the Shape and build the ribbon // by adding general path objects. // while (!pi.isDone()) { int segType = pi.currentSegment(seg); switch (segType) { case PathIterator.SEG_MOVETO: at.transform(seg, 0, tseg, 0, 1); x = seg[0]; y = seg[1]; tx = tseg[0]; ty = tseg[1]; cx = x; cy = y; tcx = tx; tcy = ty; break; case PathIterator.SEG_LINETO: at.transform(seg, 0, tseg, 0, 1); if (Line2D.relativeCCW(x, y, tx, ty, seg[0], seg[1]) < 0) { working.moveTo(x, y); working.lineTo(seg[0], seg[1]); working.lineTo(tseg[0], tseg[1]); working.lineTo(tx, ty); working.lineTo(x, y); } else { working.moveTo(x, y); working.lineTo(tx, ty); working.lineTo(tseg[0], tseg[1]); working.lineTo(seg[0], seg[1]); working.lineTo(x, y); } x = seg[0]; y = seg[1]; tx = tseg[0]; ty = tseg[1]; break; case PathIterator.SEG_QUADTO: at.transform(seg, 0, tseg, 0, 2); if (Line2D.relativeCCW(x, y, tx, ty, seg[2], seg[3]) < 0) { working.moveTo(x, y); working.quadTo(seg[0], seg[1], seg[2], seg[3]); working.lineTo(tseg[2], tseg[3]); working.quadTo(tseg[0], tseg[1], tx, ty); working.lineTo(x, y); } else { working.moveTo(x, y); working.lineTo(tx, ty); working.quadTo(tseg[0], tseg[1], tseg[2], tseg[3]); working.lineTo(seg[2], seg[3]); working.quadTo(seg[0], seg[1], x, y); } x = seg[2]; y = seg[3]; tx = tseg[2]; ty = tseg[3]; break; case PathIterator.SEG_CUBICTO: at.transform(seg, 0, tseg, 0, 3); if (Line2D.relativeCCW(x, y, tx, ty, seg[4], seg[5]) < 0) { working.moveTo(x, y); working.curveTo(seg[0], seg[1], seg[2], seg[3], seg[4], seg[5]); working.lineTo(tseg[4], tseg[5]); working.curveTo(tseg[2], tseg[3], tseg[0], tseg[1], tx, ty); working.lineTo(x, y); } else { working.moveTo(x, y); working.lineTo(tx, ty); working.curveTo(tseg[0], tseg[1], tseg[2], tseg[3], tseg[4], tseg[5]); working.lineTo(seg[4], seg[5]); working.curveTo(seg[2], seg[3], seg[0], seg[1], x, y); } x = seg[4]; y = seg[5]; tx = tseg[4]; ty = tseg[5]; break; case PathIterator.SEG_CLOSE: if (Line2D.relativeCCW(x, y, tx, ty, cx, cy) < 0) { working.moveTo(x, y); working.lineTo(cx, cy); working.lineTo(tcx, tcy); working.lineTo(tx, ty); working.lineTo(x, y); } else { working.moveTo(x, y); working.lineTo(tx, ty); working.lineTo(tcx, tcy); working.lineTo(cx, cy); working.lineTo(x, y); } x = cx; y = cy; tx = tcx; ty = tcy; } pi.next(); } // while ribbon = working; if (composite != null) { g2.setComposite(composite); } else { g2.setComposite(AlphaComposite.SrcOver); } Rectangle r = shape.getBounds(); g2.translate(w * .5 - r.width * .5, h * .5 + r.height * .5); g2.setColor(BLUE); g2.fill(tshape); g2.setColor(new Color(255, 255, 255, 200)); g2.fill(ribbon); g2.setColor(WHITE); g2.fill(shape); g2.setColor(BLUE); g2.draw(shape); } public static void main(String argv[]) { createDemoFrame(new Stars3D()); } static class DemoControls extends CustomControls implements ActionListener { Stars3D demo; JTextField tf1, tf2; @SuppressWarnings("LeakingThisInConstructor") public DemoControls(Stars3D demo) { super(demo.name); this.demo = demo; JLabel l = new JLabel(" Text:"); l.setForeground(BLACK); add(l); add(tf1 = new JTextField(demo.text)); tf1.setPreferredSize(new Dimension(60, 20)); tf1.addActionListener(this); l = new JLabel(" Size:"); l.setForeground(BLACK); add(l); add(tf2 = new JTextField(String.valueOf(demo.fontSize))); tf2.setPreferredSize(new Dimension(30, 20)); tf2.addActionListener(this); } @Override public void actionPerformed(ActionEvent e) { try { if (e.getSource().equals(tf1)) { demo.text = tf1.getText().trim(); } else if (e.getSource().equals(tf2)) { demo.fontSize = Integer.parseInt(tf2.getText().trim()); if (demo.fontSize < 10) { demo.fontSize = 10; } } demo.repaint(); } catch (Exception ignored) { } } @Override public Dimension getPreferredSize() { return new Dimension(200, 37); } @Override @SuppressWarnings("SleepWhileHoldingLock") public void run() { Thread me = Thread.currentThread(); try { Thread.sleep(999); } catch (Exception e) { return; } int length = getSize().width / 4; int size[] = { length, length }; String str[] = { "OpenJDK", "J2D" }; while (thread == me) { for (int i = 0; i < str.length; i++) { demo.fontSize = size[i]; tf2.setText(String.valueOf(demo.fontSize)); tf1.setText(demo.text = str[i]); demo.repaint(); try { Thread.sleep(5555); } catch (InterruptedException e) { return; } } } thread = null; } } // End DemoControls } // End Stars3D