ParagraphLayout.java Source code

Introduction

Here is the source code for ParagraphLayout.java

Source

import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.RenderingHints;
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 ParagraphLayout extends JPanel {
    public void paint(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;

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

        String s = "Java components and products Directory for Java components "
                + "and applications.Hundreds of Java components and applications "
                + "are organized by topic. You can find what you need easily. "
                + "You may also compare your product with others. If your component "
                + "is not listed, just send your url to java2s@java2s.com. " + "http://www.java2s.com";
        Font font = new Font("Serif", Font.PLAIN, 24);
        AttributedString as = new AttributedString(s);
        as.addAttribute(TextAttribute.FONT, font);
        AttributedCharacterIterator aci = as.getIterator();

        FontRenderContext frc = g2.getFontRenderContext();
        LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc);
        Insets insets = getInsets();
        float wrappingWidth = getSize().width - insets.left - insets.right;
        float x = insets.left;
        float y = insets.top;

        while (lbm.getPosition() < aci.getEndIndex()) {
            TextLayout textLayout = lbm.nextLayout(wrappingWidth);
            y += textLayout.getAscent();
            textLayout.draw(g2, x, y);
            y += textLayout.getDescent() + textLayout.getLeading();
            x = insets.left;
        }
    }

    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.getContentPane().add(new ParagraphLayout());
        f.setSize(350, 250);
        f.show();
    }
}