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/*
* @(#)WarpImage.java 1.26 05/11/17
*
* Copyright (c) 2006 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:
*
* -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 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 MIDROSYSTEMS, 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.
*/
/*
* @(#)WarpImage.java 1.26 05/11/17
*/
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());
}
}
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