How to control tool tip popup?

Question

Dear all:
How can I control tool tip popup whenever I want ? and the position?

Answer 1

I've been looking at this myself recently, and have come to the conclusion that it's easier to show a JWindow with a JLabel insteadWell it depends on the actual requirement.
To simply force a tooltip to display in its default location for the component you can use:
Action toolTipAction = component.getActionMap().get("postTip");
if (toolTipAction != null)
     ActionEvent postTip = new ActionEvent(component, ActionEvent.ACTION_PERFORMED, "");
     toolTipAction.actionPerformed( postTip );}
To force a tooltip to display is a specific location you need to get a little more creative. We tried code something like:
int delay = ToolTipManager.sharedInstance().getInitialDelay();
ToolTipManager.sharedInstance().mouseEntered( create a mouse entered event );
ToolTipManager.sharedInstance().mouseMoved( create a mouse moved event);
ToolTipManager.sharedInstance().setInitialDelay(delay);The above code should dislay the tooltip, but it will be hidden based on the rules of the tooltip manager.
If you want a more permanent tooltip that you can control when it is visible or hidden then I would use a PopupFactory. The basic code is:
JToolTip tooltip = component.createToolTip();
toolTip.setTipText(...);
PopupFactory factory = PopupFactory.getSharedInstance();
popup = factory.getPopup(component, toolTip, x, y);
popup.show();Now you are responsile for invoking the popup.hide() method.