Source Code : A JLabel that can be underlined, implements Scrollable

Java Is Open Source Programming Language You Can Download From Java and Java Libraries From http://www.oracle.com. Click Here to download
We provide this code related to title for you to solve your developing problem easily. Libraries which is import in this program you can download from http://www.oracle.com. Click Here or search from google with Libraries Name you get jar file related it

A JLabel that can be underlined, implements Scrollable

    
/*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public
    License as published by the Free Software Foundation; either
    version 2 of the license, or (at your option) any later version.
*/


import javax.swing.*;
import java.awt.*;

/**
    A <tt>JLabel</tt> that can be underlined, implements <tt>Scrollable</tt>,
    may have a tooltip text equal to its text and exposes a few convenience methods
    for <tt>setText()</tt>.
 
    @author <a href="mailto:jclasslib@ej-technologies.com">Ingo Kegel</a>
    @version $Revision: 1.3 $ $Date: 2003/08/18 07:47:20 $
*/
public class ExtendedJLabel extends JLabel implements Scrollable {

    private boolean underlined = false;
    private boolean autoTooltip = false;

    /**
        Constructor.
     */
    public ExtendedJLabel() {
    }

    /**
        Constructor.
        @param text the label text.
     */
    public ExtendedJLabel(String text) {
        super(text);
    }
    
    public Dimension getPreferredScrollableViewportSize() {
        return getSize();
    }

    public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
        return getWidth() / 10;
    }
    
    public boolean getScrollableTracksViewportWidth() {
        return false;
    }
    
    public boolean getScrollableTracksViewportHeight() {
        return false;
    }
    
    public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
        return 10;
    }
    
    /**
        Check whether this label is underlined.
        @return underlined or not
     */
    public boolean isUnderlined() {
        return underlined;
    }
    
    /**
        Set whether this label is underlined.
        @param underlined underlined or not
     */
    public void setUnderlined(boolean underlined) {
        this.underlined = underlined;
        repaint();
    }
    
    /**
        Check whether the tooltip text is automatically equal
        to the text of this label or not.
        @return equal or not
     */
    public boolean getAutoTooltip() {
        return autoTooltip;
    }

    /**
        Set whether the tooltip text is automatically equal
        to the text of this label or not.
        @param autoTooltip equal or not
     */
    public void setAutoTooltip(boolean autoTooltip) {
        this.autoTooltip = autoTooltip;
        setToolTipText(getText());
    }
    
    public void setText(String text) {
        super.setText(text);
        if (autoTooltip) {
            setToolTipText(text);
        }
    }
    
    /**
        Convenience method for calling <tt>setText()</tt> with a <tt>short</tt>.
        @param number the <tt>short</tt>
     */
    public void setText(short number) {
        setText(String.valueOf(number));
    }

    /**
        Convenience method for calling <tt>setText()</tt> with a <tt>int</tt>.
        @param number the <tt>int</tt>
     */
    public void setText(int number) {
        setText(String.valueOf(number));
    }

    /**
        Convenience method for calling <tt>setText()</tt> with a <tt>double</tt>.
        @param number the <tt>double</tt>
     */
    public void setText(double number) {
        setText(String.valueOf(number));
    }

    /**
        Convenience method for calling <tt>setText()</tt> with a <tt>float</tt>.
        @param number the <tt>float</tt>
     */
    public void setText(float number) {
        setText(String.valueOf(number));
    }

    /**
        Convenience method for calling <tt>setText()</tt> with a <tt>long</tt>.
        @param number the <tt>long</tt>
     */
    public void setText(long number) {
        setText(String.valueOf(number));
    }

    public void paint(Graphics g) {
        super.paint(g);
        
        if (underlined) {
            Insets i = getInsets();
            FontMetrics fm = g.getFontMetrics();

            Rectangle textRect = new Rectangle();
            Rectangle viewRect = new Rectangle(i.left, i.top, getWidth() - (i.right + i.left), getHeight() - (i.bottom + i.top) );

            SwingUtilities.layoutCompoundLabel(
                                this,
                                fm,
                                getText(),
                                getIcon(),
                                getVerticalAlignment(),
                                getHorizontalAlignment(),
                                getVerticalTextPosition(),
                                getHorizontalTextPosition(),
                                viewRect,
                                new Rectangle(),
                                textRect,
                                getText() == null ? 0 : ((Integer)UIManager.get("Button.textIconGap")).intValue()
                          );


            int offset = 2;
            if (UIManager.getLookAndFeel().isNativeLookAndFeel() && System.getProperty("os.name").startsWith("Windows")) {
                offset = 1;
            }
            g.fillRect(textRect.x + ((Integer)UIManager.get("Button.textShiftOffset")).intValue() ,
                       textRect.y + fm.getAscent() + ((Integer)UIManager.get("Button.textShiftOffset")).intValue() + offset,
                       textRect.width,
                       1);
        }
    }
}

   
    
    
    
  

Thank with us