Solved

Set disabled text color on JButton

Posted on 2002-03-21
11
2,486 Views
Last Modified: 2010-08-05
I have a JButton with HTML text:

JButton button = new JButton("<html><center>Manage<br>Users</center></html>");

When I disabled the button, the text still appear in black. How do I make the disabled text in gray (as it should appear when it's not in HTML)? This is what I currently do:

button.setText("<html><center><font color=\"666666\">Manage<br>Users</font></center></html>");
button.setEnabled(false);

I don't really like this way of doing. Is there a better way?
0
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Question by:yongsing
  • 4
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  • +3
11 Comments
 
LVL 1

Expert Comment

by:harvk
ID: 6884960
Try the setVisible() method and see what happens...

0
 
LVL 9

Author Comment

by:yongsing
ID: 6884999
Calling setVisible(false) would have made the whole button disappear.
0
 
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Accepted Solution

by:
saurav17 earned 50 total points
ID: 6885018


Hi yongsing,

What u have done now is the only solution to that.

If u use setvisible method, the button on whole will disappear.

I'm sorry u have no other options.


Regards,
K.J.S.
0
 
LVL 1

Expert Comment

by:mjsmith99
ID: 6885115
Extend JButton and override setEnabled().  Include your button-colouring code in the overriding method.



Regards,
Mike
mjsmith99@hotmaildotyouknowwhat
0
 
LVL 92

Expert Comment

by:objects
ID: 6886948
Override setEnabled and change the HTML button text:

public void setEnabled(boolean flag)
{
  if (flag)
  {
     setText("<html><center><font color=\"666666\">Manage<br>Users</font></center></html>");
  }
  else
  {
     setText("<html><center><font color=\"222222\">Manage<br>Users</font></center></html>");
  }
  super.setEnabled(flag);
  repaint();
}

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LVL 9

Author Comment

by:yongsing
ID: 6887489
objects, that was exactly what I had done. I am actually hoping for a less complicated method.
0
 
LVL 92

Expert Comment

by:objects
ID: 6887513
Not sure there is a simpler way.
As you're using HTML for specifying the button text then that is what is being displayed regardless of whether it's enabled or disabled.
0
 
LVL 9

Author Comment

by:yongsing
ID: 6887902
Thanks. It seems that there's no other way of doing it.
0
 
LVL 2

Expert Comment

by:mlempert
ID: 20671573
I created a class that extends JButton and I provide the Enabled and Disabled text with an overridden setEnabled(boolean) method.  This way I only have to specify the text in one place and the text changes based on the setEnabled parameter value.

Example usage
JButton button=new TextChangeButton(
    "<html><center>Manage<br>Users</center></html>",
    "<html><center><font color=\"666666\">Manage<br>Users</font></center></html>");
...
button.setEnabled(true); // Show manage users in black
button.setEnabled(false); // Show manage users in grey
import javax.swing.JButton;
 

/**

 * Class to change the text of a JButton when the button is enabled or disabled.

 * In the case of HTML text, this class can be used to "Gray out" the button if

 * it is disabled and reset when the button is enabled.

 * 

 * @author mlempert

 */

public class TextChangeButton extends JButton {

    private String enabledText = null;

    private String disabledText = null;
 

    /**

     * Constructor

     * @param enabledText  Enabled text

     */

    public TextChangeButton(String enabledText) {

        super(enabledText);

        this.enabledText = enabledText;

    }
 

    /**

     * Constructor

     * @param enabledText  Enabled text

     * @param disabledText Disabled text

     */

    public TextChangeButton(String enabledText, String disabledText) {

        this(enabledText);

        this.disabledText = disabledText;

    }
 

    /**

     * Set the button text and the enabled text

     * 

     * @param enabledText Enabled text

     */

    public void setText(String enabledText) {

        this.enabledText = enabledText;

        super.setText(enabledText);

    }
 

    /**

     * Set the disabled text

     * 

     * @param disabledText

     */

    public void setDisabledText(String disabledText) {

        this.disabledText = disabledText;

    }
 

    /*

     * @see javax.swing.AbstractButton#setEnabled(boolean)

     */

    public void setEnabled(boolean b) {

        super.setEnabled(b);

        if (disabledText != null)

            super.setText(b ? this.enabledText : this.disabledText);

    }

    

    /**

     * Show the enabled text

     */

    public void showEnabledText(){

    	super.setText(this.enabledText);

    }

    

    /**

     * Show the disabled text

     */

    public void showDisabledText(){

    	if (disabledText != null)

            super.setText(this.disabledText);

    }

}

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LVL 9

Author Comment

by:yongsing
ID: 20678435
Good effort, mlempert. But unfortunately you are late by almost 6 years, and this question is no longer relevant to me now. :)
0
 
LVL 2

Expert Comment

by:mlempert
ID: 20690839
I understand.  I thought that it might help someone else who might be searching for a similar situation.  I ran across this on an internet search for something else.
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