JButton mousePressed - Show tool tip text

[Lisa Zapson]

I would like to show the JButton tool tip on the mousePressed event of the JButton Action Listener; the same way as if the user did a mouseOver.

Thanks for your help, Lisa

[Brian Cole]

I came up with this and it seems to work.

public void actionPerformed(ActionEvent ae) {
if (!(ae.getSource() instanceof JComponent)) return;
JComponent source = (JComponent)ae.getSource();
Action postTip = source.getActionMap().get("postTip");
if (postTip == null) return;
postTip.actionPerformed(ae); // show the tooltip
}

[Brian Cole]

oops, I gave you an actionPerformed() but it seems you really want a mousePressed(). The code would be the same except you must instantiate an ActionEvent to be the argument for postTip.actionPerformed().

[Lisa Zapson]

Excellent! That worked great and it's really straight forward.

Thanks for your help, Lisa

[Mathias Nilsson]

import javax.swing.JButton;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.ActionListener;
import javax.swing.Action;
import java.awt.Insets;
import javax.swing.border.Border;
import javax.swing.border.SoftBevelBorder;
import javax.swing.border.BevelBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.Icon;
import javax.swing.ImageIcon;
 

public class SmallButton extends JButton implements MouseListener {
protected Border m_raised = new SoftBevelBorder(BevelBorder.RAISED);
protected Border m_lowered = new SoftBevelBorder(BevelBorder.LOWERED);
protected Border m_inactive = new EmptyBorder(0,0, 0, 0);
protected Border m_border = m_inactive;
protected Insets m_ins = new Insets(0,0,0,0);
 
public SmallButton( ImageIcon icon, String tip) {
super( icon );
setBorder(m_inactive);
setMargin(m_ins);
setToolTipText(tip);
setRequestFocusEnabled(false);
addMouseListener(this);
}

 
public float getAlignmentY() {
return 0.5f;
}
 
// Overridden for 1.4 bug fix
public Border getBorder() {
return m_border;
}
 
// Overridden for 1.4 bug fix
public Insets getInsets() {
return m_ins;
}
 
public void mousePressed(MouseEvent e) {
if( this.isEnabled() ){
m_border = m_lowered;
setBorder(m_lowered);
}
}
 
public void mouseReleased(MouseEvent e) {
m_border = m_inactive;
setBorder(m_inactive);
}
 
public void mouseClicked(MouseEvent e) {}
 
public void mouseEntered(MouseEvent e) {

if( this.isEnabled() ){
//m_border = m_raised;
//setBorder(m_raised);
}
}
 
public void mouseExited(MouseEvent e) {
m_border = m_inactive;
setBorder(m_inactive);
}
}

Here is a class that extends JButton. The constructor takes an image and a tooltiptext. You can set the tooltip wherever you want

// Mathias

[Lisa Zapson]

Thanks!