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This seems to be a verified problem with SWING
http://forums.sun.com/thread.jspa?threadID=385730
I'm currently trying to set the tooltip text of a tab in a JTabbedPane but when I do I can't actually select the tab anymore because the tooltip added a mouse listener that is consuming the events.
Does anyone know of a workaround that allows me to keep my tooltips AND my mouseevents? Thank you.
As per request here is my SSCCE
package jtabbedbug;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTabbedPane;
public class JTabBug{
public static void main(String[] args) {
JTabbedPane jTabbedPane = new JTabbedPane();
jTabbedPane.addTab("Red", new JLabel("Roses"));
jTabbedPane.addTab("Blue", new JLabel("Skies"));
jTabbedPane.addTab("Green", new JLabel("Grass"));
for (int i = 0; i < jTabbedPane.getTabCount(); i++) {
JLabel tabComponent = new JLabel(jTabbedPane.getTitleAt(i));
tabComponent.setToolTipText("Tip: " + tabComponent.getText());
jTabbedPane.setTabComponentAt(i, tabComponent);
}
JFrame jFrame = new JFrame("Testing");
jFrame.add(jTabbedPane);
jFrame.setSize(400, 500);
jFrame.setVisible(true);
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
857
That is, the handlers are called in the order mousedown → mouseup → click. Click the button below and you’ll see the events. Try double-click too. On the teststand below all mouse events are logged, and if there is more than a 1 second delay between them they are separated by a horizontal ruler.
Mouse pointer comes over/out from an element. Every mouse move over an element triggers that event. Triggers after mousedown and then mouseup over the same element if the left mouse button was used. Triggers after two clicks on the same element within a short timeframe. Rarely used nowadays. Triggers when the right mouse button is pressed.
Mouse button Click-related events always have the button property, which allows to get the exact mouse button. We usually don’t use it for click and contextmenu events, because the former happens only on left-click, and the latter – only on right-click.
If one presses the left mouse button and, without releasing it, moves the mouse, that also makes the selection, often unwanted. There are multiple ways to prevent the selection, that you can read in the chapter Selection and Range. In this particular case the most reasonable way is to prevent the browser action on mousedown.
Here's one workaround:
import javax.swing.*;
import javax.swing.plaf.*;
import java.awt.event.*;
public class JTabBug{
public static void main(String[] args) {
JTabbedPane jTabbedPane = new JTabbedPane()
{
@Override
public String getToolTipText(MouseEvent e)
{
int index = ((TabbedPaneUI)ui).tabForCoordinate(this, e.getX(), e.getY());
if (index != -1)
{
JComponent component = (JComponent)getTabComponentAt(index);
return component.getToolTipText();
}
return super.getToolTipText(e);
}
};
ToolTipManager.sharedInstance().registerComponent(jTabbedPane);
jTabbedPane.addTab("Red", new JLabel("Roses"));
jTabbedPane.addTab("Blue", new JLabel("Skies"));
jTabbedPane.addTab("Green", new JLabel("Grass"));
for (int i = 0; i < jTabbedPane.getTabCount(); i++) {
JLabel tabComponent = new JLabel(jTabbedPane.getTitleAt(i));
tabComponent.setToolTipText("Tip: " + tabComponent.getText());
ToolTipManager.sharedInstance().unregisterComponent(tabComponent);
jTabbedPane.setTabComponentAt(i, tabComponent);
}
JFrame jFrame = new JFrame("Testing");
jFrame.add(jTabbedPane);
jFrame.setSize(400, 500);
jFrame.setVisible(true);
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
Seems to be working without any issues (under Java 6). Here is my code:
package com.twist.ui.widgets;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.SwingUtilities;
public class Test {
public static void main(String[] args) {
SwingUtilities.invokeLater( new Runnable() {
@Override
public void run() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTabbedPane tabs = new JTabbedPane();
String s;
for( int i=0; i<3; i++ ) {
s = "Tab " + (i+1);
tabs.add( new JPanel(), s );
tabs.setToolTipTextAt(i, "Tooltip for " + s);
}
f.setContentPane(tabs);
f.setSize( 400,300);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}
}
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