How to draw string vertically?

Question

Hi,
The java drawString() method draws string horizontally by default, but I want to draw the string vertically, see an example below: I want to draw the string "abcdef" as below format:
a
b
c
d
e
f
so, I thought of the AffineTransform, but I can not work it out.
Who can help me? If you have other ways, they are welcome too.
Thanks. Robin

Answer 1

import java.awt.*;
import java.awt.font.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class VText {
    public static void main(String[] args) {
        int w = 200, h = 300;
        BufferedImage image = new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                            RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
        g2.setBackground(UIManager.getColor("OptionPane.background"));
        g2.clearRect(0,0,w,h);
        g2.setPaint(Color.black);
        Font font = g2.getFont().deriveFont(18f);
        g2.setFont(font);
        FontRenderContext frc = g2.getFontRenderContext();
        String text = "Hello World";
        g2.drawString(text, 50, h - 25);
        String[] s = text.split("(?<=[\\w\\s])");
        float y = 25f;
        for(int j = 0; j < s.length; j++) {
            float width = (float)font.getStringBounds(s[j], frc).getWidth();
            LineMetrics lm = font.getLineMetrics(s[j], frc);
            float x = (w - width)/2;
            AffineTransform at = AffineTransform.getTranslateInstance(x, y);
            g2.setFont(font.deriveFont(at));
            g2.drawString(s[j], 0, 0);
            y += lm.getAscent();// - lm.getDescent();
        g2.dispose();
        JOptionPane.showMessageDialog(null, new ImageIcon(image), "",
                                      JOptionPane.PLAIN_MESSAGE);
}