/*
* @(#)BezierAnim.java 1.14 99/09/07
*
* Copyright (c) 1998, 1999 by Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* 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 SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING 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
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*
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
*/
package demos.Arcs_Curves;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.awt.geom.GeneralPath;
import javax.swing.*;
import AnimatingControlsSurface;
import CustomControls;
/**
* Animated Bezier Curve with controls for different draw & fill paints.
*/
public class BezierAnim extends AnimatingControlsSurface {
private static final int NUMPTS = 6;
protected BasicStroke solid = new BasicStroke(10.0f,
BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND);
protected BasicStroke dashed = new BasicStroke(10.0f,
BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 10, new float[] {5}, 0);
private float animpts[] = new float[NUMPTS * 2];
private float deltas[] = new float[NUMPTS * 2];
protected Paint fillPaint, drawPaint;
protected boolean doFill = true;
protected boolean doDraw = true;
protected GradientPaint gradient;
protected BasicStroke stroke;
public BezierAnim() {
setBackground(Color.white);
gradient = new GradientPaint(0,0,Color.red,200,200,Color.yellow);
fillPaint = gradient;
drawPaint = Color.blue;
stroke = solid;
setControls(new Component[] { new DemoControls(this) });
}
public void animate(float[] pts, float[] deltas, int index, int limit) {
float newpt = pts[index] + deltas[index];
if (newpt <= 0) {
newpt = -newpt;
deltas[index] = (float) (Math.random() * 4.0 + 2.0);
} else if (newpt >= (float) limit) {
newpt = 2.0f * limit - newpt;
deltas[index] = - (float) (Math.random() * 4.0 + 2.0);
}
pts[index] = newpt;
}
public void reset(int w, int h) {
for (int i = 0; i < animpts.length; i += 2) {
animpts[i + 0] = (float) (Math.random() * w);
animpts[i + 1] = (float) (Math.random() * h);
deltas[i + 0] = (float) (Math.random() * 6.0 + 4.0);
deltas[i + 1] = (float) (Math.random() * 6.0 + 4.0);
if (animpts[i + 0] > w / 2.0f) {
deltas[i + 0] = -deltas[i + 0];
}
if (animpts[i + 1] > h / 2.0f) {
deltas[i + 1] = -deltas[i + 1];
}
}
gradient = new GradientPaint(0,0,Color.red,w*.7f,h*.7f,Color.yellow);
}
public void step(int w, int h) {
for (int i = 0; i < animpts.length; i += 2) {
animate(animpts, deltas, i + 0, w);
animate(animpts, deltas, i + 1, h);
}
}
public void render(int w, int h, Graphics2D g2) {
float[] ctrlpts = animpts;
int len = ctrlpts.length;
float prevx = ctrlpts[len - 2];
float prevy = ctrlpts[len - 1];
float curx = ctrlpts[0];
float cury = ctrlpts[1];
float midx = (curx + prevx) / 2.0f;
float midy = (cury + prevy) / 2.0f;
GeneralPath gp = new GeneralPath(GeneralPath.WIND_NON_ZERO);
gp.moveTo(midx, midy);
for (int i = 2; i <= ctrlpts.length; i += 2) {
float x1 = (midx + curx) / 2.0f;
float y1 = (midy + cury) / 2.0f;
prevx = curx;
prevy = cury;
if (i < ctrlpts.length) {
curx = ctrlpts[i + 0];
cury = ctrlpts[i + 1];
} else {
curx = ctrlpts[0];
cury = ctrlpts[1];
}
midx = (curx + prevx) / 2.0f;
midy = (cury + prevy) / 2.0f;
float x2 = (prevx + midx) / 2.0f;
float y2 = (prevy + midy) / 2.0f;
gp.curveTo(x1, y1, x2, y2, midx, midy);
}
gp.closePath();
if (doDraw) {
g2.setPaint(drawPaint);
g2.setStroke(stroke);
g2.draw(gp);
}
if (doFill) {
if (fillPaint instanceof GradientPaint) {
fillPaint = gradient;
}
g2.setPaint(fillPaint);
g2.fill(gp);
}
}
public static void main(String argv[]) {
createDemoFrame(new BezierAnim());
}
static class DemoControls extends CustomControls implements ActionListener {
static TexturePaint tp1, tp2;
static {
BufferedImage bi = new BufferedImage(2,1,BufferedImage.TYPE_INT_RGB);
bi.setRGB(0, 0, 0xff00ff00); bi.setRGB(1, 0, 0xffff0000);
tp1 = new TexturePaint(bi,new Rectangle(0,0,2,1));
bi = new BufferedImage(2,1,BufferedImage.TYPE_INT_RGB);
bi.setRGB(0, 0, 0xff0000ff); bi.setRGB(1, 0, 0xffff0000);
tp2 = new TexturePaint(bi,new Rectangle(0,0,2,1));
}
BezierAnim demo;
static Paint drawPaints[] =
{new Color(0,0,0,0), Color.blue, new Color(0, 0, 255, 126),
Color.blue, tp2 };
static String drawName[] =
{"No Draw", "Blue", "Blue w/ Alpha", "Blue Dash", "Texture" };
static Paint fillPaints[] =
{new Color(0,0,0,0), Color.green, new Color(0, 255, 0, 126),
tp1, new GradientPaint(0,0,Color.red,30,30,Color.yellow) };
String fillName[] =
{"No Fill", "Green", "Green w/ Alpha", "Texture", "Gradient"};
JMenu fillMenu, drawMenu;
JMenuItem fillMI[] = new JMenuItem[fillPaints.length];
JMenuItem drawMI[] = new JMenuItem[drawPaints.length];
PaintedIcon fillIcons[] = new PaintedIcon[fillPaints.length];
PaintedIcon drawIcons[] = new PaintedIcon[drawPaints.length];
Font font = new Font("serif", Font.PLAIN, 10);
public DemoControls(BezierAnim demo) {
super(demo.name);
this.demo = demo;
setBackground(Color.gray);
JMenuBar drawMenuBar = new JMenuBar();
add(drawMenuBar);
JMenuBar fillMenuBar = new JMenuBar();
add(fillMenuBar);
drawMenu = (JMenu) drawMenuBar.add(new JMenu("Draw Choice"));
drawMenu.setFont(font);
for (int i = 0; i < drawPaints.length; i++) {
drawIcons[i]= new PaintedIcon(drawPaints[i]);
drawMI[i] = drawMenu.add(new JMenuItem(drawName[i]));
drawMI[i].setFont(font);
drawMI[i].setIcon(drawIcons[i]);
drawMI[i].addActionListener(this);
}
drawMenu.setIcon(drawIcons[1]);
fillMenu = (JMenu) fillMenuBar.add(new JMenu("Fill Choice"));
fillMenu.setFont(font);
for (int i = 0; i < fillPaints.length; i++) {
fillIcons[i]= new PaintedIcon(fillPaints[i]);
fillMI[i] = fillMenu.add(new JMenuItem(fillName[i]));
fillMI[i].setFont(font);
fillMI[i].setIcon(fillIcons[i]);
fillMI[i].addActionListener(this);
}
fillMenu.setIcon(fillIcons[fillPaints.length-1]);
}
public void actionPerformed(ActionEvent e) {
Object obj = e.getSource();
for (int i = 0; i < fillPaints.length; i++) {
if (obj.equals(fillMI[i])) {
demo.doFill = true;
demo.fillPaint = fillPaints[i];
fillMenu.setIcon(fillIcons[i]);
break;
}
}
for (int i = 0; i < drawPaints.length; i++) {
if (obj.equals(drawMI[i])) {
demo.doDraw = true;
demo.drawPaint = drawPaints[i];
if (((JMenuItem) obj).getText().endsWith("Dash")) {
demo.stroke = demo.dashed;
} else {
demo.stroke = demo.solid;
}
drawMenu.setIcon(drawIcons[i]);
break;
}
}
if (obj.equals(fillMI[0])) {
demo.doFill = false;
} else if (obj.equals(drawMI[0])) {
demo.doDraw = false;
}
if (demo.animating.thread == null) {
demo.repaint();
}
}
public Dimension getPreferredSize() {
return new Dimension(200,32);
}
public void run() {
Thread me = Thread.currentThread();
while (thread == me) {
for (int i = 1; i < drawMI.length; i++) {
drawMI[i].doClick();
for (int j = 0; j < fillMI.length; j++) {
fillMI[j].doClick();
try {
thread.sleep(3000 + (long) (Math.random() * 3000));
} catch (InterruptedException e) { break; }
}
}
}
thread = null;
}
static class PaintedIcon implements Icon {
Paint paint;
public PaintedIcon(Paint p) {
this.paint = p;
}
public void paintIcon(Component c, Graphics g, int x, int y) {
Graphics2D g2 = (Graphics2D) g;
g2.setPaint(paint);
g2.fillRect(x,y,getIconWidth(), getIconHeight());
g2.setColor(Color.gray);
g2.draw3DRect(x, y, getIconWidth()-1, getIconHeight()-1, true);
}
public int getIconWidth() { return 12; }
public int getIconHeight() { return 12; }
} // End PaintedIcon class
} // End DemoControls class
} // End BezierAnim class
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