This is a bit of a hack, and I'd think twice before using this in a serious
project, but as an exercise, this was quite amusing... Here you go...
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class test extends JPanel
{
public static void main( String[] args )
{
JFrame f = new JFrame("test");
f.setContentPane(new test());
f.pack();
f.show();
}
public test()
{
JToggleButton tb = new SmartToggleButton("Test");
setLayout( new BorderLayout() );
add( tb, BorderLayout.CENTER );
}
static class SmartToggleButton extends JToggleButton
{
public SmartToggleButton( String text )
{
super(text);
setModel( new SmartToggleButtonModel() );
addMouseListener( new MouseAdapter() {
public void mouseClicked( MouseEvent ev )
{
if( ev.getClickCount() == 2 )
((SmartToggleButtonModel)getModel()).toggleSelection();
}
});
}
}
static class SmartToggleButtonModel extends JToggleButton.ToggleButtonModel
{
public void setPressed(boolean b) {
//
// copied from DefaultButtonModel.java
//
if((isPressed() == b) || !isEnabled()) {
return;
}
if (b) {
stateMask |= PRESSED;
} else {
stateMask &= ~PRESSED;
}
if(!isPressed() && isArmed()) {
fireActionPerformed(
new ActionEvent(this, ActionEvent.ACTION_PERFORMED,
getActionCommand())
);
}
fireStateChanged();
}
public void toggleSelection()
{
if (isArmed()) {
setSelected(!this.isSelected());
}
}
}
}
At 01:02 PM 2/15/2001, Perico wrote:
>I want to implement a JButton that behaves like a JToggleButton when there
>is a double click above it.
>In other words, I'd like the JButton to mantain its pressed state when it
>receives a double click (like a JToggleButton), and not to mantain it (like
>a JButton) when is single clicked.
>
>I don't mind if I get this behaviour using a JToggleButton with some extra
>code, or using a JButton with some extra code.
>
>However, I only can capture ActionEvent's produced above a JButton or
>JToggleButton. I need to detect if the ActionEvent was due to a single
>click or a double click.
>
>Do you know how can I solve my problem?.
>
>Please, if you have some idea about this issue or you know where can I get
>related information, tell me.
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