Source Code : Paragraph Layout

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Paragraph Layout

     

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();
  }
}

           
         
    
    
    
    
  

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