?? fancytext.java
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import java.awt.*;import java.applet.*;public class FancyText extends Applet implements Runnable { String s = null; int direct = 1; int Hrad = 12; int Vrad = 12; Thread thread = null; char words[]; int phase = 0; Image offI; Graphics offG; Color colors[]; private Font f; private FontMetrics fm; public void init() { String param = null; s = getParameter("word"); setBackground(Color.black); words = new char [s.length()]; s.getChars(0,s.length(),words,0); offI = createImage(getSize().width,getSize().height); offG = offI.getGraphics(); f = new Font("TimesRoman",Font.BOLD,36); fm=getFontMetrics(f); offG.setFont(f); float h; colors = new Color[s.length()]; for (int i = 0; i < s.length(); i++) { h = ((float)i)/((float)s.length()); colors[i] = new Color(Color.HSBtoRGB(h,1.0f,1.0f)); } } public void start() { if(thread == null) { thread = new Thread(this); thread.start(); } } public void stop() { if (thread != null) { thread.stop(); thread = null; } } public void run() { while (thread != null) { try { Thread.sleep(200); }catch (InterruptedException e) { } repaint(); } } public void update(Graphics g) { int x, y; double ang; offG.setColor(Color.black); offG.fillRect(0,0,getSize().width,getSize().height); phase+=direct; phase%=8; for(int i=0;i<s.length();i++) { ang = ((phase-i*direct)%8)/4.0*Math.PI; x = 20+fm.getMaxAdvance()*i+(int) (Math.cos(ang)*Hrad); y = 60+ (int) (Math.sin(ang)*Vrad); offG.setColor(colors[(phase+i)%s.length()]); offG.drawChars(words,i,1,x,y); } paint(g); } public void paint(Graphics g) { g.drawImage(offI,0,0,this); }}?? 快捷鍵說明
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