/*
* @(#)Curves.java 1.28 06/08/29
*
* 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.
*/
/*
* @(#)Curves.java 1.28 06/08/29
*/
package java2d.demos.Arcs_Curves;
import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.QuadCurve2D;
import java.awt.geom.CubicCurve2D;
import java.awt.geom.PathIterator;
import java.awt.geom.FlatteningPathIterator;
import java.awt.font.TextLayout;
import java.awt.font.FontRenderContext;
import java2d.Surface;
import static java.awt.Color.*;
import static java.awt.geom.PathIterator.*;
/**
* CubicCurve2D & QuadCurve2D curves includes FlattenPathIterator example.
*/
public class Curves extends Surface {
private static Color colors[] = { BLUE, GREEN, RED };
public Curves() {
setBackground(WHITE);
}
public void render(int w, int h, Graphics2D g2) {
int y = 0;
g2.setColor(BLACK);
FontRenderContext frc = g2.getFontRenderContext();
TextLayout tl = new TextLayout("QuadCurve2D", g2.getFont(), frc);
float xx = (float) (w*.5-tl.getBounds().getWidth()/2);
tl.draw(g2, xx, tl.getAscent());
tl = new TextLayout("CubicCurve2D", g2.getFont(), frc);
xx = (float) (w*.5-tl.getBounds().getWidth()/2);
tl.draw(g2, xx, h*.5f);
g2.setStroke(new BasicStroke(5.0f));
float yy = 20;
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 3; j++) {
Shape shape = null;
if (i == 0) {
shape = new QuadCurve2D.Float(w*.1f,yy,w*.5f,50,w*.9f,yy);
} else {
shape = new CubicCurve2D.Float(w*.1f,yy,w*.4f,yy-15,
w*.6f,yy+15,w*.9f,yy);
}
g2.setColor(colors[j]);
if (j != 2)
g2.draw(shape);
if (j == 1 ) {
g2.setColor(LIGHT_GRAY);
PathIterator f = shape.getPathIterator(null);
while ( !f.isDone() ) {
float[] pts = new float[6];
switch ( f.currentSegment(pts) ) {
case SEG_MOVETO:
case SEG_LINETO:
g2.fill(new Rectangle2D.Float(pts[0], pts[1], 5, 5));
break;
case SEG_CUBICTO:
case SEG_QUADTO:
g2.fill(new Rectangle2D.Float(pts[0], pts[1], 5, 5));
if (pts[2] != 0) {
g2.fill(new Rectangle2D.Float(pts[2], pts[3], 5, 5));
}
if (pts[4] != 0) {
g2.fill(new Rectangle2D.Float(pts[4], pts[5], 5, 5));
}
}
f.next();
}
} else if (j == 2) {
PathIterator p = shape.getPathIterator(null);
FlatteningPathIterator f = new FlatteningPathIterator(p,0.1);
while ( !f.isDone() ) {
float[] pts = new float[6];
switch ( f.currentSegment(pts) ) {
case SEG_MOVETO:
case SEG_LINETO:
g2.fill(new Ellipse2D.Float(pts[0], pts[1],3,3));
}
f.next();
}
}
yy += h/6;
}
yy = h/2+15;
}
}
public static void main(String argv[]) {
createDemoFrame(new Curves());
}
}