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Re: iTunes-like JTable (alternating row colors)...

The alternative to a custom cell renderer is to subclass JTable and override the 'prepareRenderer' method. This has the advantage of being able to stripe all cells, regardless of the renderer they use. The below could should work:

/**
* This overrides JTable.prepareRenderer so that we can stripe the
* rows as needed.
*/ public Component prepareRenderer(TableCellRenderer renderer,
int row, int column) {
Object value = getValueAt(row, column);
boolean isSelected = isCellSelected(row, column);
boolean rowIsAnchor = (selectionModel.getAnchorSelectionIndex()==row);
boolean colIsAnchor =
(columnModel.getSelectionModel().getAnchorSelectionIndex()==column);
boolean hasFocus = (rowIsAnchor && colIsAnchor) && hasFocus();
Component r = renderer.getTableCellRendererComponent(this, value,
isSelected, hasFocus,
row, column);
Color odd = ODD_COLOR; // make sure you have an odd color
Color even = EVEN_COLOR; // make sure you have an even color
if ( isSelected ) {
// do nothing if selected.
} else if (hasFocus && isCellEditable(row, column)) {
// do nothing if we're focused & editting.
} else if (even.equals(odd)) {
// do nothing if backgrounds are the same.
} else if ( row % 2 != 0 ) {
r.setBackground(odd);
} else {
r.setBackground(even);
}
// This is necessary to work around the 'optimization' of
// DefaultTableCellRenderer in 1.3
// See: http://developer.java.sun.com/developer/bugParade/bugs/4382860.html
if( IS_JAVA_13 ) { // make sure you have an IS_JAVA_13 constant
Color back = r.getBackground();
boolean colorMatch = (back != null) && ( back.equals(even) );
((JComponent)r).setOpaque(!colorMatch);
}
return r;
}
}

This works on all platforms and all java versions.

Thanks,
Sam
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