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JAVA JTable JButton in JTable header

The following code changes column border in JTable. This example invovles the following files:

• ColumnBorderTableExample.java
• BorderCellRenderer.java
• LinesBorder.java
• CellBorder.java

//Example modified from http://www.crionics.com/products/opensource/faq/swing_ex/JTableExamples2.html
/**
* @version 1.0 12/03/98
*/


import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;

public class BorderCellRenderer extends JLabel
implements TableCellRenderer {
protected Border noFocusBorder;
protected Border columnBorder;

public BorderCellRenderer() {
noFocusBorder = new EmptyBorder(1, 2, 1, 2);
setOpaque(true);
}

public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
}
setFont(table.getFont());

if (hasFocus) {
setBorder( UIManager.getBorder("Table.focusCellHighlightBorder") );
if (table.isCellEditable(row, column)) {
setForeground( UIManager.getColor("Table.focusCellForeground") );
setBackground( UIManager.getColor("Table.focusCellBackground") );
}
} else {
if (value instanceof CellBorder) {
Border border = ((CellBorder)value).getBorder();
setBorder(border);
} else {
if (columnBorder != null) {
setBorder(columnBorder);
} else {
setBorder(noFocusBorder);
}
}
}
setText((value == null) ? "" : value.toString());
return this;
}

public void setColumnBorder(Border border) {
columnBorder = border;
}

public Border getColumnBorder() {
return columnBorder;
}

}