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mxLightweightLabel.java
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185 lines (162 loc) · 2.93 KB
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/**
* Copyright (c) 2007, Gaudenz Alder
*/
package com.mxgraph.util;
import java.awt.Font;
import java.awt.Rectangle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
/**
* @author Administrator
*
*/
public class mxLightweightLabel extends JLabel
{
private static final Logger log = Logger.getLogger(mxLightweightLabel.class.getName());
/**
*
*/
private static final long serialVersionUID = -6771477489533614010L;
/**
*
*/
protected static mxLightweightLabel sharedInstance;
/**
* Initializes the shared instance.
*/
static
{
try
{
sharedInstance = new mxLightweightLabel();
}
catch (Exception e)
{
log.log(Level.SEVERE, "Failed to initialize the shared instance", e);
}
}
/**
*
*/
public static mxLightweightLabel getSharedInstance()
{
return sharedInstance;
}
/**
*
*
*/
public mxLightweightLabel()
{
setFont(new Font(mxConstants.DEFAULT_FONTFAMILY, 0,
mxConstants.DEFAULT_FONTSIZE));
setVerticalAlignment(SwingConstants.TOP);
}
/**
* Overridden for performance reasons.
*
*/
public void validate()
{
}
/**
* Overridden for performance reasons.
*
*/
public void revalidate()
{
}
/**
* Overridden for performance reasons.
*
*/
public void repaint(long tm, int x, int y, int width, int height)
{
}
/**
* Overridden for performance reasons.
*
*/
public void repaint(Rectangle r)
{
}
/**
* Overridden for performance reasons.
*
*/
protected void firePropertyChange(String propertyName, Object oldValue,
Object newValue)
{
// Strings get interned...
if (propertyName == "text" || propertyName == "font")
{
super.firePropertyChange(propertyName, oldValue, newValue);
}
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, byte oldValue,
byte newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, char oldValue,
char newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, short oldValue,
short newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, int oldValue,
int newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, long oldValue,
long newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, float oldValue,
float newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, double oldValue,
double newValue)
{
}
/**
* Overridden for performance reasons.
*
*/
public void firePropertyChange(String propertyName, boolean oldValue,
boolean newValue)
{
}
}