home *** CD-ROM | disk | FTP | other *** search
Java Source | 2002-09-06 | 7.7 KB | 242 lines |
- /*
- * Copyright (c) 2002 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 1.24 02/06/13
- */
-
- 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
-