import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.MemoryImageSource;
import java.util.Random;
/*
* Crea2.java
*
* Created on 25. Juli 2003, 20:01
*/
/**
*
* @author Administrator
*/
public class Crea2 extends javax.swing.JFrame {
private int x = 0;
private int y = 0;
private int dx;
private int dy;
private Image img = null;
private Graphics2D gra = null;
private boolean running = true;
private int w = 200;
private int h = 200;
private int pix[] = new int[w * h];
private int index = 0;
private Random r = null;
private Thread t = null;
int red = 0;
int blue = 0;
/** Creates new form Crea2 */
public Crea2() {
initComponents();
prepareImg();
r = new Random();
start();
}
private void start() {
t = new Thread(new Test());
t.start();
}
private void prepareImg() {
for (int y = 0; y < h; y++) {
int red = (y * 255) / (h - 1);
for (int x = 0; x < w; x++) {
int blue = (x * 255) / (w - 1);
pix[index++] = (255 << 24) | (red << 16) | blue;
}
}
img = createImage(new MemoryImageSource(w, h, pix, 0, w));
gra = (Graphics2D) jPanel1.getGraphics();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
}
});
jPanel1.setMinimumSize(new java.awt.Dimension(400, 300));
jPanel1.setPreferredSize(new java.awt.Dimension(400, 300));
jPanel1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mousePressed(java.awt.event.MouseEvent evt) {
jPanel1MousePressed(evt);
}
});
getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER);
pack();
}
private void jPanel1MousePressed(java.awt.event.MouseEvent evt) {
// Add your handling code here:
}
/** Exit the Application */
private void exitForm(java.awt.event.WindowEvent evt) {
System.exit(0);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
new Crea2().show();
}
/*
public void paint(Graphics g){
super.paint(g);
}
**/
class Test implements Runnable {
public void run() {
while (true) {
if (!running) {
while (!running) {
try {
Thread.currentThread().sleep(100);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
} else {
while (running) {
index = 0;
dy += 2;
dx += 2;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
red =
(int) (180
+ 180
* Math.sin(
(x + dx)
/ (37
+ 15
* Math.sin(
(y + dy)
/ 74)))
* Math.sin(
(y + dy)
/ (31
+ 11
* Math.sin(
(x + dx)
/ 37))));
blue =
(int) (180
+ 180
* Math.cos(
(x + dx)
/ (37
+ 15
* Math.cos(
(y + dy)
/ 74)))
* Math.cos(
(y + dy)
/ (31
+ 11
* Math.cos(
(x + dx)
/ 37))));
pix[index++] = (16 << 24) | (red << 16) | blue;
//System.out.println("x: " + x + " y: "+y +" index: " + index);
}
}
img =
createImage(new MemoryImageSource(w, h, pix, 0, w));
try {
Thread.currentThread().sleep(10);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
if (img != null)
gra.drawImage(img, 50, 50, 200, 200, jPanel1);
}
}
}
}
}
// Variables declaration - do not modify
private javax.swing.JPanel jPanel1;
// End of variables declaration
}
