import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class MainClass {
public static void main(String[] args) {
JFrame jf = new JFrame("Demo");
Container cp = jf.getContentPane();
MyCanvas tl = new MyCanvas();
cp.add(tl);
jf.setSize(300, 200);
jf.setVisible(true);
}
}
class MyCanvas extends JComponent {
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
Rectangle2D r = new Rectangle2D.Double(50, 50, 150, 100);
g2.setPaint(Color.red);
g2.fill(r);
Composite c = AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
.4f);
g2.setComposite(c);
g2.setPaint(Color.blue);
g2.setFont(new Font("Times New Roman", Font.PLAIN, 72));
g2.drawString("www.java2s.com", 25, 130);
}
}
|
