import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel {
String text = "this is a test. This is a test. This is a test. This is a test";
AttributedString attribString = new AttributedString(text);
AttributedCharacterIterator attribCharIterator;
public Main() {
setSize(350, 400);
attribString.addAttribute(TextAttribute.FOREGROUND, Color.blue, 0, text
.length());
attribString.addAttribute(TextAttribute.FONT, new Font("sanserif", Font.ITALIC, 20),
0, text.length());
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
attribCharIterator = attribString.getIterator();
FontRenderContext frc = new FontRenderContext(null, false, false);
LineBreakMeasurer lbm = new LineBreakMeasurer(attribCharIterator, frc);
int x = 10, y = 20;
int w = getWidth();
float wrappingWidth = w - 15;
while (lbm.getPosition() < text.length()) {
TextLayout layout = lbm.nextLayout(wrappingWidth);
y += layout.getAscent();
layout.draw(g2, x, y);
y += layout.getDescent() + layout.getLeading();
}
}
public static void main(String arg[]) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add("Center", new Main());
frame.pack();
frame.setSize(new Dimension(350, 400));
frame.setVisible(true);
}
}