?? attributevaluecellrenderer.java
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package com.ca.directory.jxplorer.viewer.tableviewer;
import java.awt.Component;
import javax.swing.JTable;
import javax.swing.table.*;
import java.awt.*;
import com.ca.commons.cbutil.CBIntText;
/*
* A minimal extension of DefaultTableCellRenderer allowing
* us to set some rows to bold font and others to normal font.
*
*/
public class AttributeValueCellRenderer extends DefaultTableCellRenderer
{
Font normalFont;
Font boldFont;
Font boldBlueFont;
/**
* constructor calls the super class constructor, and
* initialises the fonts.
*/
public AttributeValueCellRenderer()
{
super();
normalFont = this.getFont();
boldFont = normalFont.deriveFont(java.awt.Font.BOLD);
boldBlueFont = normalFont.deriveFont(java.awt.Font.BOLD);
}
/**
* Intercepts byte array/binary attribute values, and substitutes the
* string '(non string data)' for display to the user...
*/
protected void setValue(Object value) // I wonder what the performance hit here is...
{
if (value instanceof AttributeValue)
{
if (((AttributeValue)value).isBinary() && (((AttributeValue)value).isEmpty()==false))
value = CBIntText.get("(non string data)");
else
{
// truncate long strings for initial display
String stringVal = value.toString();
if (stringVal.length() > 100)
value = truncateLongString(stringVal);
if (stringVal.substring(0,6).toLowerCase().startsWith("<html>"))
value = " " + stringVal;
}
}
super.setValue(value);
}
public String truncateLongString(String truncateMe)
{
return truncateMe.substring(0, 100) + "...";
}
/**
* intercepts the super classes returned component, and sets the
* font on it before returning.
*/
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column)
{
if (value instanceof AttributeValue)
{
AttributeValue attVal = (AttributeValue)value;
String attString = attVal.toString();
if (attString.length() > 100)
attString = truncateLongString(attString);
Component c = super.getTableCellRendererComponent(table, attString, isSelected, hasFocus, row, column);
if (attVal.isNaming())
{
c.setForeground(((isSelected)?Color.white:Color.blue));
c.setFont(boldFont);
}
else
{
c.setForeground(((isSelected)?Color.white:Color.black));
c.setFont(normalFont);
}
return c;
}
else
return super.getTableCellRendererComponent(table, new String("error"), isSelected, hasFocus, row, column);
}
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