import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.TextHitInfo;
import java.awt.font.TextLayout;
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 {
private TextLayout mTextLayout;
private int mX = 40, mY = 80;
public MyCanvas() {
addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent me) {
TextHitInfo hit = mTextLayout.hitTestChar(me.getX() - mX, me.getY() - mY);
System.out.println(hit.getCharIndex());
System.out.println(hit.getInsertionIndex());
System.out.println(hit.isLeadingEdge());
}
});
}
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
String s = "www.rntsoft.com";
Font font = new Font("Serif", Font.PLAIN, 32);
if (mTextLayout == null) {
FontRenderContext frc = g2.getFontRenderContext();
mTextLayout = new TextLayout(s, font, frc);
}
mTextLayout.draw(g2, mX, mY);
}
}