JLabel 這么強大的組件 ..大家竟然認為他不帥!!!!!!
JLabel聽到后非常非常的生氣!!!!!!!!!于是就出現了下面的JLabel
由于是動態的火焰..只能一張一張截了...你可以自己拿去運行一下看看效果
下面不廢話了..
源碼:
package Flame;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class Flame extends JLabel implements Runnable
{
boolean first = true;
//
int ROWS = 50;
int COLS = 64;
int HIDDEN = 4;
int ROWS_SEED = 4;
int ROWS_RESEED = 48;
int MAX_SEED = 8;
int PALETTE_SIZE = 64;
int COOLING_LIMIT = 32;
int COOLING_ROWS = 42;
int COOLING_FACTOR = 2;
java.awt.Color palette[] = new java.awt.Color[PALETTE_SIZE];
byte Buffer[], Buffer2[];
String NAME;
String message, textfont;
int textsize, textX, textY;
Color textcolor;
Image offScrImage = null;
Graphics offScrGC;
Dimension offScrSize;
Thread kicker = null;
public Flame(String name){
this.NAME = name;
Dimension d = new Dimension(200,72);
setPreferredSize(d);
setSize(d);
setMaximumSize(d);
setMinimumSize(d);
init();
start();
}
public void init() {
int r, i;
COLS = getSize().width;
ROWS = getSize().height + HIDDEN;
ROWS_RESEED = (int) (getSize().height * 0.99);
Buffer = new byte[COLS * ROWS];
Buffer2 = new byte[COLS * ROWS];
for (i = 0; i < 16; ++i)
palette[i] = new Color(255,240, 0);
for (i = 0; i < 16; ++i)
palette[16 + i] = new Color(255, 16 * i,0);
for (r = COLS * (ROWS - ROWS_SEED); r < (ROWS * COLS); ++r) {
Buffer[r] = (byte) (PALETTE_SIZE-20);
}
}
public void MainLoop() {
int r, a, i;
for (r = COLS + 1; r < (COLS * (ROWS - 1)) - 1; ++r) {
a = Buffer[r - COLS - 1] + Buffer[r - COLS] + Buffer[r - COLS + 1]
+ Buffer[r - 1] + Buffer[r + 1] + Buffer[r + COLS - 1]
+ Buffer[r + COLS] + Buffer[r + COLS + 1];
a = (a >> 3);
Buffer2[r] = (byte) (a);
}
for (r = COLS * (ROWS_RESEED); r < COLS * (ROWS); ++r) {
a = Buffer2[r];
Buffer2[r] = (byte) ((a - (Math.random() * MAX_SEED)) % (PALETTE_SIZE * 1.1));
}
for (i = 0; i < COLS * (ROWS - 1); ++i)
Buffer[i] = Buffer2[i + COLS];
}
public final synchronized void update(Graphics g) {
Dimension d = getSize();
if ((offScrImage == null) || (d.width != offScrSize.width)
|| (d.height != offScrSize.height)) {
offScrImage = createImage(d.width, d.height);
offScrSize = d;
offScrGC = offScrImage.getGraphics();
}
if (offScrGC != null) {
offScrGC.fillRect(0, 0, d.width, d.height);
paint(offScrGC);
g.drawImage(offScrImage, 0, 0, null);
}
}
public void paint(Graphics g) {
super.paint(g);
if(null == Buffer){
return;
}
int a;
Color c;
MainLoop();
for (int y = 0; y < (ROWS - HIDDEN); ++y)
for (int x = 0; x < COLS; ++x) {
a = Buffer[y * COLS + x];
a = a < 0 ? -a : a; // Patch nasty bug
a = a < (PALETTE_SIZE - 1) ? (a) : (PALETTE_SIZE - 1);
c = palette[a];
try {
g.setColor(c);
g.drawLine(x, y, x + 1, y);
} catch (Exception e) {
}
}
g.setFont(new Font("宋體",0,18));
g.setColor(Color.black);
g.drawLine(0,getHeight()/2+6,this.getWidth(),getHeight()/2+6);
g.drawString(NAME,10,getHeight()/2+10);
try {
} catch (Exception e) {
}
}
public void start() {
if (kicker == null) {
kicker = new Thread(this);
kicker.start();
}
}
public void stop() {
kicker = null;
}
public void run() {
while (kicker != null) {
if(null != this.getGraphics()){
update(this.getGraphics());
}
try {
kicker.sleep(30);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args){
JFrame f = new JFrame("Flame");
f.setLayout(new BorderLayout());
Flame flame = new Flame(" JLabel很生氣!!!!");
flame.setFont(new Font("宋體",1,18));
f.getContentPane().add(flame,BorderLayout.SOUTH);
f.getContentPane().add(new JButton(),BorderLayout.CENTER);
f.getContentPane().add(new JButton("我頂"),BorderLayout.NORTH);
f.getContentPane().add(new JButton(),BorderLayout.WEST);
f.getContentPane().add(new JButton(),BorderLayout.EAST);
f.setSize(200,200);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}