/* * Copyright (c) 2003 Sun Microsystems, Inc. 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. * * -Redistribution in binary form must reproduct 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 Sun Microsystems, Inc. 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 AND ITS LICENSORS SHALL NOT * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE 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 SOFTWARE, EVEN * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that Software is not designed, licensed or intended for * use in the design, construction, operation or maintenance of any nuclear * facility. */ /* * @(#)Intersection.java 1.25 03/01/23 */ 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; /** * Animated intersection clipping of lines, an image and a textured rectangle. */ public class Intersection extends AnimatingControlsSurface { private static final int HEIGHTDECREASE = 0; private static final int HEIGHTINCREASE = 1; private static final int WIDTHDECREASE = 2; private static final int WIDTHINCREASE = 3; private int xx, yy, ww, hh; private int direction = HEIGHTDECREASE; 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(Color.white); setControls(new Component[] { new DemoControls(this) }); } public void reset(int w, int h) { xx = yy = 0; ww = w-1; hh = h; direction = HEIGHTDECREASE; 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 == HEIGHTDECREASE) { yy+=2; hh-=4; if (yy >= h/2) { direction = HEIGHTINCREASE; } } else if (direction == HEIGHTINCREASE) { yy-=2; hh+=4; if (yy <= 0) { direction = WIDTHDECREASE; hh = h-1; yy = 0; } } if (direction == WIDTHDECREASE) { xx+=2; ww-=4; if (xx >= w/2) { direction = WIDTHINCREASE; } } else if (direction == WIDTHINCREASE) { xx-=2; ww+=4; if (xx <= 0) { direction = HEIGHTDECREASE; 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(Color.green); g2.fill(rect); g2.setClip(new Rectangle(0, 0, w, h)); g2.setColor(Color.lightGray); g2.draw(rect); g2.setColor(Color.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; setBackground(Color.gray); add(toolbar = new JToolBar()); toolbar.setFloatable(false); addTool("Intersect", true); addTool("Text", false); addTool("Ovals", true); } public void addTool(String str, boolean state) { JButton b = (JButton) toolbar.add(new JButton(str)); b.setBackground(state ? Color.green : Color.lightGray); b.setSelected(state); b.addActionListener(this); } public void actionPerformed(ActionEvent e) { JButton b = (JButton) e.getSource(); b.setSelected(!b.isSelected()); b.setBackground(b.isSelected() ? Color.green : Color.lightGray); 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(200,37); } public void run() { Thread me = Thread.currentThread(); while (thread == me) { if (demo.threeSixty) { ((JButton) toolbar.getComponentAtIndex(1)).doClick(); demo.threeSixty = false; } try { thread.sleep(500); } catch (InterruptedException e) { return; } } thread = null; } } // End DemoControls } // End Intersection