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Java Source | 2002-09-06 | 4.7 KB | 137 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.
- */
-
- /*
- * @(#)WarpImage.java 1.22 02/06/13
- */
-
- package java2d.demos.Images;
-
- import java.awt.*;
- import java.awt.geom.CubicCurve2D;
- import java.awt.geom.Point2D;
- import java.awt.geom.FlatteningPathIterator;
- import java.awt.geom.PathIterator;
- import java2d.AnimatingSurface;
-
-
- /**
- * Warps a image on a CubicCurve2D flattened path.
- */
- public class WarpImage extends AnimatingSurface {
-
- private static int iw, ih, iw2, ih2;
- private static Image img;
- private static final int FORWARD = 0;
- private static final int BACK = 1;
- private Point2D pts[];
- private int direction = FORWARD;
- private int pNum;
- private int x, y;
-
-
- public WarpImage() {
- setBackground(Color.white);
- img = getImage("surfing.gif");
- iw = img.getWidth(this);
- ih = img.getHeight(this);
- iw2 = iw/2;
- ih2 = ih/2;
- }
-
-
- public void reset(int w, int h) {
- pNum = 0;
- direction = FORWARD;
- CubicCurve2D cc = new CubicCurve2D.Float(
- w*.2f, h*.5f, w*.4f,0, w*.6f,h,w*.8f,h*.5f);
- PathIterator pi = cc.getPathIterator(null, 0.1);
- Point2D tmp[] = new Point2D[200];
- int i = 0;
- while ( !pi.isDone() ) {
- float[] coords = new float[6];
- switch ( pi.currentSegment(coords) ) {
- case PathIterator.SEG_MOVETO:
- case PathIterator.SEG_LINETO:
- tmp[i] = new Point2D.Float(coords[0], coords[1]);
- }
- i++;
- pi.next();
- }
- pts = new Point2D[i];
- System.arraycopy(tmp,0,pts,0,i);
- }
-
-
- public void step(int w, int h) {
- if (pts == null) {
- return;
- }
- x = (int) pts[pNum].getX();
- y = (int) pts[pNum].getY();
- if (direction == FORWARD)
- if (++pNum == pts.length)
- direction = BACK;
- if (direction == BACK)
- if (--pNum == 0)
- direction = FORWARD;
- }
-
-
- public void render(int w, int h, Graphics2D g2) {
- g2.drawImage(img,
- 0, 0, x, y,
- 0, 0, iw2, ih2,
- this);
- g2.drawImage(img,
- x, 0, w, y,
- iw2, 0, iw, ih2,
- this);
- g2.drawImage(img,
- 0, y, x, h,
- 0, ih2, iw2, ih,
- this);
- g2.drawImage(img,
- x, y, w, h,
- iw2, ih2, iw, ih,
- this);
- }
-
-
- public static void main(String argv[]) {
- createDemoFrame(new WarpImage());
- }
- }
-