org.tbee.swing
Class ToolTipListener

java.lang.Object
  org.tbee.swing.ToolTipListener

All Implemented Interfaces:

java.awt.event.AdjustmentListener, java.awt.event.ComponentListener, java.awt.event.MouseWheelListener, java.util.EventListener

public class ToolTipListener
extends java.lang.Object
implements java.awt.event.ComponentListener, java.awt.event.MouseWheelListener, java.awt.event.AdjustmentListener

This class is used to help generate tooltips on components added to a scrollpane. Generally tooltips are generated as the mouse if moved over components that display tooltips. On complex component, like a JTable the component can generate multiple tooltips depending on which cell the mouse is positioned over. However, when the viewport of the scrollpane is moved and the mouse is not moved the tooltip is not updated even though the mouse is positioned over a different cell. This might happen for example when the mouse wheel is used to scroll the viewport. To force updating of the tooltip, this class will generate a phantom mouseMoved event which is passed to the ToolTipManager. This class is actually a 3 in 1 listener and will work slightly different depending on how it is being used. When used as a: a) MouseWheelListener - it is added to the scrollpane. In this case the mouseMoved events are only generated by scrolling of the mouse wheel and therefore only supports vertical movement of the viewport scrollPane.addMouseWheelListener(new ToolTipListener()); b) AdjustmentListener - is added to the vertical and/or horizontal scrollbar. In this case the viewport can be scrolled by using the mouse wheel or the keyboard and mouseMoved events will be generated. scrollPane.getVerticalScrollBar().addAdjustmentListener(new ToolTipListener()); c) ComponentListener - it is added to the component. In this case all forms of viewport movement as well as changes in the component size will cause the mouseMoved event to be generated. table.addComponentListener(new ToolTipListener());

Constructor Summary

ToolTipListener()

Method Summary

void	adjustmentValueChanged(java.awt.event.AdjustmentEvent e)
void	componentHidden(java.awt.event.ComponentEvent e)
void	componentMoved(java.awt.event.ComponentEvent e)
void	componentResized(java.awt.event.ComponentEvent e)
void	componentShown(java.awt.event.ComponentEvent e)
void	mouseWheelMoved(java.awt.event.MouseWheelEvent e)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ToolTipListener

public ToolTipListener()

Method Detail

componentMoved

public void componentMoved(java.awt.event.ComponentEvent e)

Specified by:

componentMoved in interface java.awt.event.ComponentListener

componentResized

public void componentResized(java.awt.event.ComponentEvent e)

Specified by:

componentResized in interface java.awt.event.ComponentListener

componentHidden

public void componentHidden(java.awt.event.ComponentEvent e)

Specified by:

componentHidden in interface java.awt.event.ComponentListener

componentShown

public void componentShown(java.awt.event.ComponentEvent e)

Specified by:

componentShown in interface java.awt.event.ComponentListener

mouseWheelMoved

public void mouseWheelMoved(java.awt.event.MouseWheelEvent e)

Specified by:

mouseWheelMoved in interface java.awt.event.MouseWheelListener

adjustmentValueChanged

public void adjustmentValueChanged(java.awt.event.AdjustmentEvent e)

Specified by:

adjustmentValueChanged in interface java.awt.event.AdjustmentListener