/* * @(#)Intersection.java 1.34 10/03/23 * * Copyright (c) 2006, 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: * * -Redistribution of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * -Redistribution 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 or the names of contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of any * nuclear facility. */ /* * @(#)Intersection.java 1.34 10/03/23 */ package java2d.demos.Clipping; import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import java.awt.font.FontRenderContext; import java.awt.font.TextLayout; import javax.swing.*; import java2d.AnimatingControlsSurface; import java2d.CustomControls; import static java.awt.Color.*; /** * Animated intersection clipping of lines, an image and a textured rectangle. */ public class Intersection extends AnimatingControlsSurface { private static final int HEIGHT_DECREASE = 0; private static final int HEIGHT_INCREASE = 1; private static final int WIDTH_DECREASE = 2; private static final int WIDTH_INCREASE = 3; private int xx, yy, ww, hh; private int direction = HEIGHT_DECREASE; private int angdeg; private Shape textshape; private double sw, sh; private GeneralPath ovals; private Rectangle2D rectshape; private DemoControls controls; protected boolean doIntersection = true; protected boolean doOvals = true; protected boolean doText; protected boolean threeSixty; public Intersection() { setBackground(WHITE); setControls(new Component[] { new DemoControls(this) }); } public void reset(int w, int h) { xx = yy = 0; ww = w-1; hh = h; direction = HEIGHT_DECREASE; angdeg = 0; FontRenderContext frc = new FontRenderContext(null, true, false); Font f = new Font("serif",Font.BOLD,32); TextLayout tl = new TextLayout("J2D", f, frc); sw = tl.getBounds().getWidth(); sh = tl.getBounds().getHeight(); int size = Math.min(w, h); double sx = (size-40)/sw; double sy = (size-100)/sh; AffineTransform Tx = AffineTransform.getScaleInstance(sx, sy); textshape = tl.getOutline(Tx); rectshape = textshape.getBounds(); sw = rectshape.getWidth(); sh = rectshape.getHeight(); ovals = new GeneralPath(); ovals.append(new Ellipse2D.Double( 10, 10, 20, 20), false); ovals.append(new Ellipse2D.Double(w-30, 10, 20, 20), false); ovals.append(new Ellipse2D.Double( 10, h-30, 20, 20), false); ovals.append(new Ellipse2D.Double(w-30, h-30, 20, 20), false); } public void step(int w, int h) { if (direction == HEIGHT_DECREASE) { yy+=2; hh-=4; if (yy >= h/2) { direction = HEIGHT_INCREASE; } } else if (direction == HEIGHT_INCREASE) { yy-=2; hh+=4; if (yy <= 0) { direction = WIDTH_DECREASE; hh = h-1; yy = 0; } } if (direction == WIDTH_DECREASE) { xx+=2; ww-=4; if (xx >= w/2) { direction = WIDTH_INCREASE; } } else if (direction == WIDTH_INCREASE) { xx-=2; ww+=4; if (xx <= 0) { direction = HEIGHT_DECREASE; ww = w-1; xx = 0; } } if ((angdeg += 5) == 360) { angdeg = 0; threeSixty = true; } } public void render(int w, int h, Graphics2D g2) { Rectangle rect = new Rectangle(xx, yy, ww, hh); AffineTransform Tx = new AffineTransform(); Tx.rotate(Math.toRadians(angdeg),w/2,h/2); Tx.translate(w/2-sw/2, sh+(h-sh)/2); GeneralPath path = new GeneralPath(); if (doOvals) { path.append(ovals, false); } if (doText) { path.append(Tx.createTransformedShape(textshape), false); } else { path.append(Tx.createTransformedShape(rectshape), false); } if (doIntersection) { g2.clip(rect); g2.clip(path); } g2.setColor(GREEN); g2.fill(rect); g2.setClip(new Rectangle(0, 0, w, h)); g2.setColor(LIGHT_GRAY); g2.draw(rect); g2.setColor(BLACK); g2.draw(path); } public static void main(String argv[]) { createDemoFrame(new Intersection()); } static class DemoControls extends CustomControls implements ActionListener { Intersection demo; JToolBar toolbar; public DemoControls(Intersection demo) { super(demo.name); this.demo = demo; add(toolbar = new JToolBar()); toolbar.setFloatable(false); addTool("Intersect", true ); addTool("Text", false); addTool("Ovals", true ); } public void addTool(String str, boolean state) { JToggleButton b = (JToggleButton) toolbar.add(new JToggleButton(str)); b.setFocusPainted(false); b.setSelected(state); b.addActionListener(this); int width = b.getPreferredSize().width; Dimension prefSize = new Dimension(width, 21); b.setPreferredSize(prefSize); b.setMaximumSize( prefSize); b.setMinimumSize( prefSize); } public void actionPerformed(ActionEvent e) { JToggleButton b = (JToggleButton) e.getSource(); if (b.getText().equals("Intersect")) { demo.doIntersection = b.isSelected(); } else if (b.getText().equals("Ovals")) { demo.doOvals = b.isSelected(); } else if (b.getText().equals("Text")) { demo.doText = b.isSelected(); } if (demo.animating.thread == null) { demo.repaint(); } } public Dimension getPreferredSize() { return new Dimension(200,40); } public void run() { Thread me = Thread.currentThread(); while (thread == me) { if (demo.threeSixty) { ((AbstractButton) toolbar.getComponentAtIndex(1)).doClick(); demo.threeSixty = false; } try { thread.sleep(500); } catch (InterruptedException e) { return; } } thread = null; } } // End DemoControls } // End Intersection