A display of text, formatted by us instead of by AWT/Swing Java code example - Click here to copy ->>>

Can't find what you're looking for? Try our search:

Really working examples categorized by API, package, class. You can compile and run our examples right away! Not from source code for Java projects - only working examples! Copy, compile and run!

Code:



 

/*

 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.

 * All rights reserved. Software written by Ian F. Darwin and others.

 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $

*/







import java.awt.Component;

import java.awt.Container;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Point;

import java.awt.font.FontRenderContext;

import java.awt.font.LineBreakMeasurer;

import java.awt.font.TextAttribute;

import java.awt.font.TextLayout;

import java.text.AttributedString;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;



import javax.swing.JFrame;



/** A display of text, formatted by us instead of by AWT/Swing.

 * <P>

 * This program is distributed under the terms of the accompanying

 * COPYRIGHT.txt file (which is NOT the GNU General Public License).

 * Please read it. Your use of the software constitutes acceptance

 * of the terms in the COPYRIGHT.txt file.

 * @author Ian F. Darwin

 * @version $Id: TextFormat.java,v 1.3 2004/03/26 03:34:30 ian Exp $

 */

public class TextFormat extends Component {



   /** The text of this line */

   protected String text;

   /** The Font */

   protected Font font;

   /** The TextLayouts corresponding to "text" */

   List layouts;



   public Font getFont() {

      return font;

   }



   public void setFont(Font f) {

      font = f;

   }



   public String getText() {

      return text;

   }

   public void setText(String t) {

      text = t;

   }



   public void paint(Graphics g) {

      if (text == null || text.length() == 0)

         return;

      if (layouts == null)

         getLayouts(g);



      Point pen = new Point(0, 0);

      Graphics2D g2d = (Graphics2D)g;

      g2d.setColor(java.awt.Color.black);   // or a property

      g2d.setFont(font);



      Iterator it = layouts.iterator();

      while (it.hasNext()) {

         TextLayout layout = (TextLayout) it.next();

         pen.y += (layout.getAscent());

         g2d.setFont(font);

         layout.draw(g2d, pen.x, pen.y);

         pen.y += layout.getDescent();

         //pen.y += leading;

      }

   }



   /** Lazy evaluation of the List of TextLayout objects corresponding

    * to this MText. Some things are approximations!

    */

   private void getLayouts(Graphics g) {

      layouts = new ArrayList();



      Point pen = new Point(10, 20);

      Graphics2D g2d = (Graphics2D) g;

      FontRenderContext frc = g2d.getFontRenderContext();



      AttributedString attrStr = new AttributedString(text);

      attrStr.addAttribute(TextAttribute.FONT, font, 0, text.length());

      LineBreakMeasurer measurer = new LineBreakMeasurer(

         attrStr.getIterator(), frc);

      float wrappingWidth;



      wrappingWidth = getSize().width - 15;



      while (measurer.getPosition() < text.length()) {

         TextLayout layout = measurer.nextLayout(wrappingWidth);

         layouts.add(layout);

      }

   }



   public static void main(String[] args) {

      JFrame jf = new JFrame("Demo");

      Container cp = jf.getContentPane();

      TextFormat tl = new TextFormat();

      tl.setFont(new Font("SansSerif", Font.BOLD, 42));

      tl.setText("The quick brown fox jumped over the lazy cow");

      cp.add(tl);

      jf.setSize(300, 200);

      jf.setVisible(true);

   }

}