====== MessageBox and tooltips ======

{{tag>aswing tutorial}}

This tutorial will use the MessageBox tutorial example to show you how to add tooltips to 
your components. We first set the tooltip for the okBtn instance by simply calling the 
setToolTipText method.

<code actionscript>
okBtn.setToolTipText("Click Yes \nThis is correct answer.");
</code>

If we run our example now you can see a tooltip generated when you do a mouse rollover on
the okBtn. Now lets create a JToolTip instance for the cancelBtn and create a action listener
to call a method when the button is clicked.

<code actionscript>
tooltip = new JToolTip();
tooltip.setComponent(cancelBtn);
tooltip.setTipText("Click No");
cancelBtn.addActionListener(changeToolTip, this);
</code>

We will change the tooltip text in this method.

<code actionscript>
private function changeToolTip():Void{
    tooltip.setTipText("You Clicked No " +count++);
}
</code>


Make sure you added the tooltip instance and the count variable to the class.

<code actionscript>
private var tooltip:JToolTip;
private var count:Number;
</code>

Compile and run the example. Everytime you click the cancelBtn the count variable will be 
incremented and the value will change on the tooltip.

{{ :messageboxtt.swf?550x400 }}

MessageBox.as
-------------------------
<code actionscript>
 /**
* @author firdosh
*/
import org.aswing. *;
class MessageBox extends JFrame
{
	private var buttonsPanel : JPanel;
	private var labelPanel : JPanel;
	private var okBtn : JButton;
	private var cancelBtn : JButton;
	private var title : String;
	private var message : String;
	private var messageDisplay : JLabel;
	private var icon : MCIcon;
	private var tooltip : JToolTip;
	private var count : Number;
	public function MessageBox (title : String , message : String)
	{
		super (_root, true);
		this.title = title;
		this.message = message;
		count = 1;
		buttonsPanel = new JPanel ();
		okBtn = new JButton ("Yes");
		cancelBtn = new JButton ("No");
		okBtn.setPreferredSize (75, 22);
		cancelBtn.setPreferredSize (75, 22);
		okBtn.setToolTipText ("Click Yes \nThis is correct answer.");
		buttonsPanel.setLayout (new FlowLayout (FlowLayout.RIGHT, 20, 8));
		buttonsPanel.append (okBtn);
		buttonsPanel.append (cancelBtn);
		labelPanel = new JPanel ();
		messageDisplay = new JLabel (message);
		labelPanel.setLayout (new FlowLayout (FlowLayout.CENTER));
		labelPanel.append (messageDisplay);
		tooltip = new JToolTip ();
		tooltip.setComponent (cancelBtn);
		tooltip.setTipText ("Click No");
		cancelBtn.addActionListener (changeToolTip, this);
		getContentPane ().append (labelPanel, BorderLayout.CENTER);
		getContentPane ().append (buttonsPanel, BorderLayout.SOUTH);
		setTitle (title);
	}
	private function changeToolTip () : Void
	{
		tooltip.setTipText ("You Clicked No " + count ++);
	}
	public function setDisplayIcon (icon : Icon) : Void
	{
		messageDisplay.setIcon (icon);
	}
	public static function main (Void) : Void
	{
		var myWindow : MessageBox = new MessageBox ("Information", "ASWing ROCKS!!.\nDon`t you agree ;).");
		var info : MCIcon = new MCIcon ("INFO", 51, 43);
		myWindow.setDisplayIcon (info);
		myWindow.setLocation (50, 50);
		myWindow.setSize (300, 150);
		myWindow.setResizable (false);
		myWindow.show ();
	}
}
</code>