HorizontallyCenteredText.java Source code

Introduction

Here is the source code for HorizontallyCenteredText.java

Source

import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.geom.Rectangle2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class HorizontallyCenteredText extends JPanel {
    public void paint(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;

        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

        g2.setFont(new Font("Serif", Font.PLAIN, 48));

        paintHorizontallyCenteredText(g2, "Java Source", 200, 75);
        paintHorizontallyCenteredText(g2, "and", 200, 125);
        paintHorizontallyCenteredText(g2, "Support", 200, 175);
    }

    protected void paintHorizontallyCenteredText(Graphics2D g2, String s, float centerX, float baselineY) {
        FontRenderContext frc = g2.getFontRenderContext();
        Rectangle2D bounds = g2.getFont().getStringBounds(s, frc);
        float width = (float) bounds.getWidth();
        g2.drawString(s, centerX - width / 2, baselineY);
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.getContentPane().add(new HorizontallyCenteredText());
        f.setSize(450, 350);
        f.show();
    }
}