Package org.opentrafficsim.swing.gui

Class GhostText

java.lang.Object

org.opentrafficsim.swing.gui.GhostText

All Implemented Interfaces:

FocusListener, PropertyChangeListener, EventListener, DocumentListener

public class GhostText
extends Object
implements FocusListener, DocumentListener, PropertyChangeListener

Code taken from stack overflow. This class shows light gray text within a JTextComponent when it is empty, as a hint as to what a user might type.

Copyright (c) 2024-2026 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

Author:

Wouter Schakel

See Also:

• stackoverflow

Constructor Summary

Constructors

Constructor	Description
GhostText(JTextComponent textComp, String ghostText)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	changedUpdate(DocumentEvent e)
void	delete()	Delete ghost text.
void	focusGained(FocusEvent e)
void	focusLost(FocusEvent e)
Color	getGhostColor()	Get ghost color.
void	insertUpdate(DocumentEvent e)
void	propertyChange(PropertyChangeEvent evt)
void	removeUpdate(DocumentEvent e)
void	setGhostColor(Color ghostColor)	Set ghost color.

Methods inherited from class java.lang.Object

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

Constructor Details

GhostText

public GhostText(JTextComponent textComp,
 String ghostText)

Constructor.

Parameters:

textComp - text component to receive ghost text

ghostText - ghost text

Method Details

delete

public void delete()

Delete ghost text.

getGhostColor

public Color getGhostColor()

Get ghost color.

Returns:

ghost color

setGhostColor

public void setGhostColor(Color ghostColor)

Set ghost color.

Parameters:

ghostColor - ghost color

focusGained

public void focusGained(FocusEvent e)

Specified by:

focusGained in interface FocusListener

focusLost

public void focusLost(FocusEvent e)

Specified by:

focusLost in interface FocusListener

propertyChange

public void propertyChange(PropertyChangeEvent evt)

Specified by:

propertyChange in interface PropertyChangeListener

changedUpdate

public void changedUpdate(DocumentEvent e)

Specified by:

changedUpdate in interface DocumentListener

insertUpdate

public void insertUpdate(DocumentEvent e)

Specified by:

insertUpdate in interface DocumentListener

removeUpdate

public void removeUpdate(DocumentEvent e)

Specified by:

removeUpdate in interface DocumentListener